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Permit L2000-033 - AIPPERSBACH MICHAEL - BUFFER REDUCTION SPECIAL PERMISSION
This record contains information which is exempt from public disclosure pursuant to the Washington State Public Records Act, Chapter 42.56 RCW as identified on the Digital Records Exemption Log shown below. L2000 -033 Aippersbach / Quik Park Wetland 3610 South 158th Street RECORDS DIGITAL D- ) EXEMPTION LOG THE ABOVE MENTIONED PERMIT FILE INCLUDES THE FOLLOWING REDACTED INFORMATION Page # tode Exemption = 8rlef Explanatory DeSclriptiop �t�tutel ule The Privacy Act of 1974 evinces Congress' intent that social security numbers are a private concern. As such, individuals' social security Personal Information — numbers are redacted to protect those Social Security Numbers individuals' privacy pursuant to 5 U.S.C. sec. 5 U.S.C. sec. DR1 Generally — 5 U.S.C. sec. 552(a), and are also exempt from disclosure 552(a); RCW 552(a); RCW under section 42.56.070(1) of the Washington 42.56.070(1) 42.56.070(1) State Public Records Act, which exempts under the PRA records or information exempt or prohibited from disclosure under any other statute. Redactions contain Credit card numbers, debit card numbers, electronic check numbers, credit Personal Information — expiration dates, or bank or other financial RCW 22,23 DR2 Financial Information — account numbers, which are exempt from 42.56.230(5) RCW 42.56.230(4 5) disclosure pursuant to RCW 42.56.230(5), except when disclosure is expressly required by or governed by other law. L2000 -033 QUIK PARK WETLAND 3610 S. 1581 ST. March 1, 2007 Ciz of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Sterling Realty Organization Co 600 — 106th Avenue NE, #200 Bellevue, WA 98004 RE: Release of Assignment of Funds Permit No. L2000 -033 Dear Sir: The letter is authorizing release of the assignment of funds in the amount of $13,975.00 for the monitoring and maintenance in connection with the enhancement of the wetland buffer for the property located at 3610 South 158th Street, Tukwila, Washington. If you should have any questions, please contact our office at (206)431 -3672. Sincerely, Brenda Holt Permit Coordinator encl xc: Permit No. L2000 -033 v q: \documents \bond release \d05 -206 — release letter.doc bh 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206 - 431 -3665 ry Schulz - RE: Quik Park buffer 1 Page 1J From: "Sue Burgemeister" <sue @b12assoc.com> To: "'Gary Schulz ' <bear4all @yahoo.com> Date: 10/4/02 11:01 AM Subject: RE: Quik Park buffer Thanks for the clarification. You have a good break too! Sue Susan Burgemeister B- twelve Associates, Inc. 253- 859 -0515 (voice) 253- 852 -4732 (fax) sue @b12assoc.com Original Message From: Gary Schulz [mailto:bear4all @yahoo.com] Sent: Friday, October 04, 2002 8:52 AM To: sue @b12assoc.com Cc: Michael Aippersbach Subject: RE: Quik Park buffer Thanx Sue, To clarify about the outfall planting - what I observed was the northern outfall has the willow /cottonwood mix but the southern does not have this. However, the southern area leading down to the outfall is planted with the shrub /tree mix as a continuation of the buffer plantings. So I think its fine I just wanted to relay what I saw. Have a nice weekend! Gary Schulz - -- Sue Burgemeister <sue @b12assoc.com> wrote: > Gary, > I like your approach. Let's adjust with the > monitoring. I will add a > copy of this e-mail to the field monitoring plan set > and then we'll > confirm the species and plant count as part of the > first monitoring. > I did see plants in the grasses along the southern > pipe to the > outfall- -where do you think they went? •z ~w • rt _10; O: (,)0. w. . •w Z` 'w O J u_ <; z I- O. Z I-• 11.1 LIT ;D p U O N` .0 !- w w: 1— U. 16 0 z. w U = . ( -OH . Garry Schulz.- RE: Quik Park buffer - Page 2; > Thanks for you help, > Sue > Susan Burgemeister > B- twelve Associates, Inc. > 253 - 859 -0515 (voice) > 253 - 852 -4732 (fax) > sue @b12assoc.com > Original Message > From: Gary Schulz [mailto:bear4all @yahoo.com] > Sent: Thursday, October 03, 2002 1:37 PM > To: Sue @b12assoc.com > Subject: Quik Park buffer > Hi Sue, > First I conducted my obligatory inspection yesterday > and gave it a "pass ". However, as is the norm the > planting is not exactly as shown. Some plants were > not present in total #'s but given the added plants > I'm not going to make it a revision. There are > several things I want to provide for your record. > 1) I think the Oceanspray added plants may be > Currant. I couldn't find all the tall Currant but > the > smaller shrubs that were added look very similar. > 2) Your storm outfall letter mistates a couple > things > - the southern most outfall was not planted but the > northern one was. Also, the plantings adjacent to > the > retaining wall are all red osier dogwood and not the > cottonwood /willow mixture as shown on the as- built. > My thoughts on this plan and slight changes are to > postpone anymore submittals until the first > monitoring > period. At that time, observations should be noted > and a corrected map submitted. What do think? > Gary Schulz > 206 - 772 -6514 > 206 - 431 -3662 '.0r1aaeia nS f7rNfaiF+fMdt.X7ry++ritwi.t' 4.!$ i�ts�tf 5f4,:.' n."4A:, INSPECTION NO. INSPECTION RECOr``� Ube: J- 033 1: 1� q Retain a copy with permit 1- 31..3 t lt PERMIT NO. CITY OF TUKWILA BUILDING DIVISION 6300 Southcenter Blvd., #100, Tukwila, WA 98188 (206)431 -3670 Pro'ect: '' // tl 11; Pare Type.�ogf Ins eyt�ion: I U.-T1 ctM D * e - + otd-Gt Adddress: apio S,I5 Date Called: pja ritmc D- 1 -dam. Special Instructions: Date Wanted: a.m. 1 0 —.. —OZ Requester: c c.� l te A 1 SYJOc(;, Phone No: .P0 Iv - r)''), - 31 tog .N. Approved per applicable codes. Cr -` _edal�XC II Corrections required prior to proval/ COMMENTS: nspector: Date* 0 El $47.00 REINS ION FEE REQUy7 D. Prior to inspection, fee must be paid at $300 Southcenter Blvd., Suite 100. Call to schedule reinspection. Receipt No.: Date: September 30, 2002 B- twelve Associates, Inc. Mr. Michael Aippersbach PO Box 95429 Seattle WA 98145 -2429 RE: Mitigation Plan Installation SRO Quick Park B- twelve # A0 -177 Dear Michael, 1103 W. Meeker St. Kent, WA 98032 -5751 (v) 253 - 859 -0515 (f) 253 - 852 -4732 (e) info @b12assoc.com CITY OF .f UKWILA Z OCT d 2002 QW PERMIT CENTER D J U. O 0 U) CI U) W . J= w 0. gQ rn D. _a I— III Z 1 I— 0 Z I—. ww At the request of SRO we have been coordinating with GLY and their landscape installer v o to compete installation of the wetland buffer mitigation plan for the project. The Buffer ,O �, Enhancement Plan was initially dated 11 -7 -00 and was modified to meet the revisions to 0 I--: the parking lot on November 7, 2001. The plan was finally revised on February 25, 2002 v i after clearing of the blackberry revealed that some of the buffer area included native trees w ~o and shrubs that could be preserved. w z 0 The Buffer Enhancement Plan has been installed per the February 25, 2002 plan with the 0 }- O following modifications as shown on the attached As -Built dated September 30, 2002. Z 1. Plant materials have been substituted per B- twelve approval and informally accepted by Gary Shulz during a phone call and subsequent site visit. a. Evergreen huckleberry: The plan called for 24 " -36" plants. Three 1- gallon plants have been installed for each of the plants identified on the plan. b. Ocean spray (Holodiscus discolor) has been substituted for Sitka Mountain Ash. 2. Revised planting locations: Plant species and quantities identified in the original mitigation plan at the northern end of the buffer have been spread along the narrow buffer area to the north of the original planting area. As a result, all plants anticipated in the original proposal are now present in the buffer as it was actually cleared during blackberry removal. This additional section of planting along the northeastern end of the buffer will aid in controlling blackberry invasion along the eastern side of the buffer. .... r, y_ 4!> ia' �1A4?.• Ai1�Jhi:' ti.':< liC4:t::q��.i'a.'bUw�'.- j.n:n:J ,.a. :•:Yaa Mb9la[�tt'ieoiMr Re: SRO Quick Park B- twelve Associates, Inc. #A0 -177 September 30, 2002 Page 2 of 2 3. During a site inspection, we have confirmed that the final buffer is at least 15- feet wide at the narrowest point in the buffer as required by the plan. 4. A riprap pad has been constructed in the southern part of the buffer to accommodate roof drain outfall from the maintenance building. Per our request 5 dogwoods and 5 Sitka willow have been added to the riprap area to aid in buffer stabilization and to add to the plantings at the outfall. 5. Sensitive Areas signs have been installed per plan. The SRO Quick Park Buffer Enhancement Plan has therefore been installed per the modified plan and fully meets the intent of the plan. We recommend acceptance of the plan and initialization of the monitoring period for the project. We suggest that the first monitoring site visit be conducted in August or September 2003. Please call me if we can answer any questions or provide any additional information. Sincerely, B- twelve Associates, Inc. Susan L. Burgemeister President • Enc. Cc: Michael Lancaster, SRO File: sb\A0 -177 SRO Buffer sign -off 09/30/2002 11:37 4252275268 SHAMROCK LANDSCAPING L . L . C . September 30, 2002 Attn: Sue GLY Construction, Inc. P.O. Box 6728 Bellevue, Washington 98008 -0728 RE: Quik Park Wetland Dear Sue: PAGE 01 This letter is to inform you or make clear on the irrigation of the wetland area at Quick Park. Shamrock Landscaping will irritate the mitigation area according to mitigation sheet W2 Section 4.3. irrigation by use of temporary irrigation system for this year through October 15, 2003 or as necessary . If you have any questions or any further information is needed you can reach me at 425 - 8644387. Sincerely, SHAMROCK LANDSCAPING, LLC gave Vaterrff//ap Dave Mayberry Vice President Project Manager lap RECEIVED CITY OF TUKWILA OCT i - 2002 PERMIT CENTER 7450 S. 212th Street, Kent, Washington 98032 • (253) 395-7370 • Fax (253) 395.7380 nw� stews eawsueINAW z U' 00 0. :W= • •J � u. w O: u. Q. • H w' Z �. •1- O Z 1-- uj o cn w' ui U O ~- Z • Gary Schulz_- _FW:.SRO Quick Park- Wetinnd Buffer Mitigation Page 1 From: "Susan Burgemeister" <sue @b12assoc.com> To: "Gary Schulz" <GSchulz @ci.tukwila.wa.us> Date: 9/25/01 11:54AM Subject: FW: SRO Quick Park - Wetland Buffer Mitigation Susan Burgemeister B- twelve Associates, Inc. 253 - 859 -0515 (voice) 253 - 852 -4732 (fax) sue @b12assoc.com Original Message From: Susan Burgemeister [mailto:sue @bl2assoc.com] Sent: Tuesday, September 25, 2001 11:41 AM To: Gary Schulz (GShulz @ci.tukwila.wa.us) Cc: Deb Ritter (DRitter @ci.tukwila.wa.us); Michael Aippersbach (aipp @prodigy.net) Subject: SRO Quick Park - Wetland Buffer Mitigation Gary, As we discussed I met with GLY (general contractor for Quick Park) and Shamrock Landscaping on -site this morning to discuss the wetland buffer mitigation plan. 1. GLY is currently clearing the blackberry from the designated planting area. They are protecting the existing cottonwood, alder and big leaf maple. Shamrock will adjust the planting around these trees since they were not shown on the B- twelve planting plan. 2. The buffer area will be seeded with the native seed mix shown on the B- twelve plan. Seeding is expected to occur this Friday (9 -28). 3. The upper edge of the buffer area is currently edged by the gravel construction access road. This road is still above the final grade of the parking lot. GLY expects to remove the road and bring the buffer edge elevation down to final grade by the middle of October as part of their wrap -up for the winter. 4. Some disruption of the buffer slope is expected as part of the final grading. Areas disturbed during the final grading will be reseeded, again, with the native seed mix shown on the B- twelve plan. 5. Planting of the shrubs and trees will take place after the final grading has been completed. We expect planting to be complete by the end of October. The delayed planting will work well with the onset of the winter rains and will avoid the need to hand -water or irrigate the area. 6. As soon as the blackberry is removed, the fiber fence will be replaced at the wetland edge on the east side of the wetland. This lower fence will remain in place until the shrubs and trees have been installed. Shamrock will remove this fence as part of their completion of installation. 7. A second row of fiber fence will be placed along the upper edge of the buffer as soon as the buffer is initially hydro- seeded. This fence will be augmented with orange construction fencing on the parking lot side of the fiber fence that will remain in place until the permanent fence is placed around the parking lot area. 8. These fences will be re- installed upon completion of the final Gary_ Schulz - FW: SRO Quick Park -WetJd Buffer - Mitigation . Page 2 grading and winter wrap -up. 9. Shamrock will be responsible for restoration of the fiber fence and orange fencing upon completion of shrub and tree installation, if disturbed. 10. Shamrock will also be responsible for reseeding areas disturbed during plant installation. Other: 1. Per our conversation, I understand that the fiber fencing shown on the west side of the wetland edge on the approved civil engineering plans is no longer a requirement for the project. This fence is not shown on the B- twelve plan; we understand that the fiber fencing will be limited to the east side of the wetland area and will be located as discussed in items 6 -10 above. This is consistent with the erosion control fencing shown on the B- twelve plan. 2. I also understand that based on our discussion this morning, you will want to visit the site after the mitigation plan has been completely installed. I will keep you posted on the progress and contact you if there is any need to modify the B- twelve plan. Finally, as we discussed, the B- twelve mitigation plan was apparently not included in the construction plan set. We have given copies of the plan to the contractor and he is distributing copies to the subs. Will you please ensure that your inspector is aware of the mitigation plan and has a plan set, if he needs one? Please let me know if you need additional copies from B- twelve. Thanks for your help. Will you please give me your new phone number and hours as soon as you're settled? Sue Susan Burgemeister B- twelve Associates, Inc. 253 - 859 -0515 (voice) 253 - 852 -4732 (fax) sue @b12assoc.com Z a • -J C.) • 00, U) w w =. •N u-: w 0: 71. —d. Z W • zi. Z 0. o UJ 2 ' !- - U 0 Z' '0 Y--). O z DeborahRitter Quik ParkWetlanc�B y°fantings From: Deborah Ritter To: Internet: aipp @prodigy.net; Internet: sue @b12assoc.com Date: 9/11/02 11:23AM Subject: Quik Park Wetland Buffer Plantings Page" During my site visit this morning, I was informed that you will be planting additional conifers in the wetland buffer. I also understand that you have been in communication with Gary about the location of the wetland boundaries and the watering schedule. Please understand that you will be required to provide me with 2 copies of the final as -built planting plan for the wetland buffer and the watering schedule prior to Tukwila's final inspection for the Certificate of Occupancy. We will need the as -built plan to document your latest revisions to the planting plan as well as the watering schedule to assist us during the maintenance and monitoring phase. I will leave a voice mail with you to this effect. CC: Gary Schulz z W 00. N cn W W J ;. • LL. W 0 Q co = C3 w Z F- O' z C): l0._ ui = U AL.� ui Z; 0 H; . De•ora 'Ritter - Qul Par' •u er t Page 1 From: Gary Schulz To: Deborah Ritter Date: 9/9/02 12:06PM Subject: Quik Park buffer Deb, I spoke with Sue B. this morning. She assured me that the buffer area /zone is still set aside so it can be enhanced. She measured and marked some of the wetland edge area to confirm the 25 -foot buffer and minimum 15 feet. 1 let Sue know that you will need the buffer enhancement plan completed prior to final permitting or opening. Also, the plantings will need a limited watering schedule to get them established before the seasonal rain period begins, generally around 10/15. So I will not review this further until the plantings are installed to help you with the inspection. Gary Schulz 206 -431 -3662 CC: Sue @B12assoc.com z • Z 0. 0 O`. .W=: w O: Q• w •= C� F'=. • I-0 :: Z F— w w; . ID a i0 • .:-o • .z. 0 z { 'DeborahRitter Qu k Par - buffer From: "Sue Burgemeister" <sue @b12assoc.com> To: "'Gary Schulz " <gschulz @ci.tukwila.wa.us >, "Deborah Ritter "' <dritter @ci.tukwila.wa.us> Date: 9/9/02 1:13PM Subject: RE: Quik Park buffer Thanks Gary, I've sent a note to the client to pass on this information and to notify them that they will need to water the plantings until the middle of October if they plan to plant in time for an October 1 opening. Sue Susan Burgemeister B- twelve Associates, Inc. 253 - 859 -0515 (voice) 253 - 852 -4732 (fax) sue @b12assoc.com Original Message From: Gary Schulz [mailto :gschulz @ci.tukwila.wa.us] Sent: Monday, September 09, 2002 12:06 PM To: Deborah Ritter Cc: Sue @B12assoc.com Subject: Quik Park buffer Deb, I spoke with Sue B. this morning. She assured me that the buffer area /zone is still set aside so it can be enhanced. She measured and marked some of the wetland edge area to confirm the 25 -foot buffer and minimum 15 feet. I let Sue know that you will need the buffer enhancement plan completed prior to final permitting or opening. Also, the plantings will need a limited watering schedule to get them established before the seasonal rain period begins, generally around 10/15. So I will not review this further until the plantings are installed to help you with the inspection. Gary Schulz 206 - 431 -3662 CC: "Michael Aippersbach" <aipp @prodigy.net >, "Michael Lancaster "' <mikel @SterlingRealty.com> March 19, 2002 City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 VIA FAX 206 - 524 -0337 RE: Special Permission (L2000 -033) Request for Reduction in Wetland Buffer Building Permit (D01 -363) Quik Park 3610 South 158th Dear Michael: We have reviewed and approved your March 19th revision to the Wetland Buffer Planting plan. We have also reviewed and approved your March 19th Storm Outfall Planting plan. Please submit the appropriate number of copies of the Storm Outfall Planting plan to the Permit Center as a revision to D01 -363. We encourage you to begin the outfall planting as soon as possible. If you have any questions, please contact me at 206 -431 -3663. Sincerely, Deborah Ritter Associate Planner 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 s.+iKrM. FTIRMOZN. % en* 3.A .ta+vmrons,ra .z ()co H = 0 I- City of Tukwila Steven M. Mullet, Mayor February 7, 2002 Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 VIA FAX 206 -524 -0337 RE: Special Permission (L2000 -033) Request for Reduction in Wetland Buffer Building Permit (001 -363) Quik Park 3610 South 158th Dear Michael: We were advised last fall that the existing native trees and shrubs in the north 40 feet of the wetland buffer area were not disturbed during clearing and grading work. As a result, and after conversations between Gary Schulz and B- Twelve Associates, it was agreed that the plants originally proposed for that portion of the buffer enhancement plan would not be needed. It was agreed that those plants (or other suitable plants) would instead be planted at the outfall in the northwest corner of the site. As we indicated in December, a separate planting plan for the outfall must be approved by the City of Tukwila and the plantings represented in that plan must be installed prior to the release of the Certificate of Occupancy under D01 -363. No monitoring or maintenance bond will be required for the outfall plantings. In response to our request for documentation, you provided us with B- Twelve's revised "Buffer Enhancement Plan" (2 sheets) on January 25, 2002. We have reviewed these plan sheets and have the following comments (previously discussed with Susan Burgemeister of B- Twelve in December): 1. The wetland buffer planting and the outfall planting (although part of the same project) are being administered under two different files. For this reason, the planting information and documentation for the two areas cannot be co- mingled. 2. The Buffer Enhancement Plan may only reflect the plants that will be installed in the wetland buffer. The types of plants shown in the buffer planting list have already been approved and should not be changed. Do not include proposed plantings for the outfall area. If the number of plants to be installed in the buffer will be reduced in number, please make the necessary changes in quantity on the buffer plant list. 3. The northern 40 feet of the wetland buffer has been circled and crossed out with a note referencing a joint email to you and to the City of Tukwila. The note also references the outfall planting. These revisions are not acceptable. Please remove the note and revise the wetland buffer illustration to correctly show the reduced scope of work. 4. Please provide a planting plan (plan view, elevation and planting details) showing your planting proposal for the outfall. This must be stamped by a landscape architect licensed in the State of Washington. The name, quantity, size and spacing of the proposed plants are to be provided. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 -431 -3670 • Fax: 206 -431 -3665 z ~w J U. 00 co 0 w= H NL w O. u.¢ cn =d I- _ z� I-O Z I— U � O — O I- 111 ui _. U u_ z Cu —I 0 Michael Aippersbach February 7, 2002 Page 2 5. Once the outfall planting plan (referenced in Item 4 above) has been reviewed and approved, you will need to formally submit the plan to the Permit Center as a revision to D01 -363. Please provide this information to Ms. Bergemeister and contact me at 206 -431 -3663 with any questions. Sincerely, Deborah Ritter Associate Planner Michael Aippersbach & Associates Planning and Development Services AN ,a �JQ2 0 January 23, 2002 0 DEvEL opmar co ILI ILI Wo w z�. I- O iz 2o U Si2 As the representative for the Quik Park, LLC project, we are requesting approval for i° some minor and insignificant changes regarding our approved Buffer Enhancement Plan = v for our Quik Park project. We have submitted for your review and approval the ti following explanation for and requested buffer design changes: ui z 1. Relocation of a portion of the enhancement area S2 i' Near the north end of the wetland buffer (towards SR 518), there are existing z 1- native shrubs and trees present in the buffer area. The area is approximately the North 40 feet of the average buffer area. During clearing and grading activities, the native shrubs and trees in this area were saved. Therefore the plants originally proposed in this area are not needed. The design plans for stormwater did not address impacts to the stream buffer at the stormwater outfall to the creek. During installation and construction of the storm drainage system, approximately 40 feet of blackberry buffer was cleared to accommodate the stormwater outall to the creek. B- Twelve Associates who prepared our Buffer Enhancement Plan suggested after a recent site visit that we shift the proposed new planting (which is not needed) to the stream buffer area at the stormwater facility outfall. B- Twelve Associates also suggested the following plant specie modifications to the original approved Buffer Enhancement Plan: 2. Species substitutions Rather than use the same wetland buffer plants included in the original Buffer Enhancement Plan, we are proposing to substitute some different plants in the stream buffer area. Based on B- Twelve's recommendations, we are proposing to plant only trees in order to provide taller plants to out compete the blackberry and shade out the reed canary grass that dominate the remainder of the stream buffer in this vicinity. Deborah Ritter Associate Planner Community Development Department City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila WA 98188 Re: Quik Park, Inc. Project (Off - Airport Parking Facility) 3610 South 158th Street L2000 -033 (Special Permission - Buffer reduction) Dear Ms. Ritter, PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 Page 2 Ltr from Aippersbach & Associates to D. Ritter, City of Tukwila/1 -23 -02 The substitutions include 15 Black Cottonwood trees, size 4 to 6 feet in height and 15 Pacific Willow trees, size 4 to 6 feet in height. If you have any further questions regarding our request or of these submittal materials or need more information, you can reach me at (206) 523 -3764, e-mail me at aipp @prodigy.net, or fax me at (206) 524 -0337. Thanks, Deb! Sincerely, 1144,a, Off:126064(k_ Michael Aippersbach Encl: Revised Buffer Enhancement Plan (Shts 1 & 2) c /projects / republic /desgnrev.dsk:buffchgl.doc PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 •Z Z w: J0 00 (n w: w =. J NU' 'w 0: cr Z I .; I— 0 Z cn; • W W' • .`u-0; Z'. ,1.11 _, Off` Gary_Schulz -SRO Quick Park ...... ,�...... Page 1 From: "Susan Burgemeister" <sue @b12assoc.com> To: "Michael Aippersbach" <aipp @prodigy.net> Date: 11/7/01 11:02AM Subject: SRO Quick Park Michael and Gary, This morning I met with Michael, and Allan (GLY Construction) to discuss possible modifications to the wetland planting plan. I have okayed the following: 1. Near the northern end of the wetland buffer planting area, native shrubs and trees are present in the buffer area and were saved during the buffer clearing and grading. Therefore the plants proposed in this area are not needed. This area is approximately the northern 40 -feet of the averaged buffer area. 2. The design plans for the storm water did not address impacts to the stream buffer at the storm facility outlet area. Because the outfall is buried, approximately 40 -feet of blackberry buffer had been cleared. 3. I have approved shifting the planting from the existing wetland buffer to the stream buffer area at the storm facility outfall. 4. I have also requested that rather than use the same plants shown in the wetland buffer, the stream buffer area be planted with trees. I have limited to the planting to trees in order to quickly provide taller plants to out - compete the blackberry and shade out reed canary grass that dominate the remainder of the stream buffer n this vicinity.. a. Black Cottonwood, size =4 -6 feet , Quantityl5 trees b. Pacific Willow , size = 4- 6'feet, Quantity 15 trees 5. This modification is noted on my plan set— unfortunately, my set does not include the location of the storm outfall as it is shown only on the storm drainage plan. The plan approval set and the contractor plan sets should be adjusted to show this change in plant location and species mix. Please contact me if you have any questions or comments. Sue Susan Burgemeister B- twelve Associates, Inc. 253- 859 -0515 (voice) 253- 852 -4732 (fax) sue @b12assoc.com CC: "Gary Schulz" <GSchulz @ci.tukwila.wa.us> z F-Z. D:2 • 0 .0 0. co o • w= J• g; u- ?. co d. = F- w _ ZF-: I- 0 Z 0 ' i0== t-- w w. .z ..w .. • p _' 0 H. z From: Deborah Ritter To: Greg Villanueva Date: 7/10/01 4:5OPK8 Subject: Quik Park silt fencing After much confusion and debate, PW & Planning have agreed to the following change: Silt fencing will be not be required around the entire perimeter of the wetland buffer. Silt fencing will be required along the eastern perimeter of the wetland buffer and extending 5 feet beyond to the north and south. This silt fencing must be in place prior to the construction of wetland improvements, which will be commenced after the parking lot 15 buift. This is per Jill's original recommendation. CC: David McPherson; Jill Mosqueda redaction City of Tukwila DEVELOPER'S PRL .IECT WARRANTY REQUEST FORM Sii!'!YYSMaWL %i'iitt ?y zir' 0_°'' i°'• ci'' iiiii% f'+ i' r_WN•iW)iifri ? ?yyi.:i1:� :.. NAME OF DEVELOPMENT: DEVELOPMENT ADDRESS: CASH ASSIGNMENT SHALL BE REFUNDED BY MAILING TO: (please print) Quik Park 3610 S. 158th St. NAME: Sterling Realty Organization Co. DATE: 5 - 3 - 01 PERMIT NO.: L- 2000 -053 TEL. NO. (4251 455 -8100 ADDRESS: 600 - 106th Ave. NE #200 CITY/STATE/ZIP Bellevue, WA 98004 DESCRIPTION OF ITEMS TO BE COMPLETED (REFERENCE P �, ��• U ki S WHERE i A- • .SCRIB : to • arantee in connection with the enhancement of the wetland buffer as described in R- twPlvQ Assoriat-P� plan sheets dated 11/7/00 under their Job # A0 -1771; . and as approved by t-hP ri ty of 1 a on 1/10/01. As the owner, or authorized agent of the owner, I hereby submit cash or cash equivalent in the amount of $ ., 3f97 ,00 ($150% of value to complete work described above) and attach supporting documentation for value of work. 1 will have this work carried out and call for a final inspection by this date: (.r}i/py/ o 3 / 104/), or risk having the City use these funds to carry out the work with their own contractor or in -house manpower. If I fail to carry out the work, I hereby aut • 'ze the City to go onto the property to carry out completion of the above deficiencies. !further agree to comp,Q all o listed above prior to requesting inspection and release of these funds. SIGNED: TITLE: SIGNED: cr. Iete fJ>i? ;Clt ..s THIS FUND IS AUTHORIZED TO BE ACCEPTED. AMOUNT: 3 DEPARTMENT HEAD: laANK Acc, . * CITY RECEIPT NO. 72 HOUR NOTIFICATION FOR INSPECTION AND RELEASE OF FUNDS DEVELOPER'S REPRESENTATIVE: All work identified in Section 1 of this form has now been completed and retumed to department which authorized warranty. I hereby request inspection and release of my cash/cash equivalent. DATE: I have reviewed the above work and found it acceptable and therefore authorize th elease f th above cash assignment. �• DEPARTMENT: AD AUTHORIZED BY: z� :000,O.W1K',% LOOt�OJTT�lyG9, t{ 40f!'> O? AO}JY< ,......00Jf4000i3O>.?.......... .. .. .... ... .... . .4?�:1;K?���?� . CASH EQUIVALENT- LETTER AUTHORIZING RELEASE AMOUNT: RELEASED THIS DATE: 3 • I• CASH CITY CHECK NO. RELEASED pialtj cpbocrow�ttorooa'. ttJOCU. v�wovxouNGOw: o: ava ?oauoeoonawwooarcaoow.'w000w� <o , FINANCE DEPT. Upon completion through Section 2, Finance personnel shall send copies to: - Developer - Finance Department - Permit Coordinator, DCD Upon completion of entire form, Finance personnel shall send copies to: - Developer - Finance Department - Permit Coordinator, DCD oan31Co z F- w 00 0) a J H w• 0 �< co =d w z= F- 0 w~ uj 0 u)_ WW Hr- LL .. z U N w= O~ z 04!30/01 MON 14:35 FAX 425 455 8165 STERLING REALTY ORG. ASSIGNMENT OF FUNDS This assignment is for the purpose of fulfilling the requirement of the City of Tukwila concerning the replacement and monitoring of the Quik Park wetland mitigation area, which is 150% of the installation cost and monitoring. The undersigned does hereby assign, transfer and set over unto the City of Tukwila all right, title and interest in and to $ 13,975.00 in savings account number # in the for the Quik Park project located at 3610 S. 158th St. Tukwila, Washington, with full power and authority to demand, collect and receive said deposit and to give receipt and acquittance therefore. It is understood and agreed that the Bank of America holds the said account in its possession and agrees to hold $13,975.00 until the Assignment is terminated pursuant to the terms herein. If the plant loss within the 3 year period exceeds 20% and the deficiency is not corrected within a reasonable period of time after written notice from the City of Tukwila, the deposit shall be released to the City of Tukwila on demand. If after the final inspection by the City of Tukwila or its designated agent and the plant loss is in compliance with the less than 20% loss requirement of the City, this assignment shall terminate and the City of Tukwila shall have no further rights or interest in said account. Signed and dated at Bell By _f £ Washington, this __c2_ day of Residing at Sterling Realty Organization Co. 600 — l 06t Ave. NE 4200 Bellevue. WA 98004rt..�, APPROVED AND ACCEPTED: Phone (425) 455 -8100 The Bank of America accepts the foregoing assignment and agrees to hold said account pursuant to the terms thereof until a written release of this assignment from the City of Tukwila is received or until the City of Tukwila exercises it's power and authority to demand or call the deposit. Account No. Bank: Address: Sign Date: 6' APR 30 2001 17:39 /$c:2. 2/ 96f7041 Title // IZ 002 425 455 8165 PAGE .02 z • 1. �w 6 00 ca J 1• =- cn LL,. w0 g-j u_¢ =d a—_ z�.. �0 wE- ta O to o1 w w 1- III LLi Z' 0I- 0 z O'4/30/01 MON 14:36 FAX 425 455 8165 STERLING REALTY ORG. STATE OF WASHINGTON ) ) ss. COUNTY OF KING ) On this ,9, 61 day of , o`(Dc ( , before me personally appeared 5dn f1\ t9 r c ∎ S , to me known to be the individual that executed the within and foregoing instrument, and acknowledged the said instrument to be his free and voluntary act and deed of said individual for the uses and purposes therein mentioned. ]N WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year above written. 33 APR 30 2001 17:39 J14? ihIraff No ary Public in and or the State of Washington residing at SOA le, My appointment expires / 0— 15-01 425 455 8165 PAGE.03 Qj 003 Z . ■ =F-. 'It w: 6 -J U' :0 O cn w J m: CO w O. -g =0. I-w I— co,. Z . o ui w w Z: • W U =; O ~: Z May 3, 2001 44N, city of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 VIA FAX 206 - 524 -0337 RE: Special Permission (L2000 -033) Request for Reduction in Wetland Buffer Quik Park 3610 South 158th Dear Mr. Aippersbach: We have reviewed and approved the revision to Sheet 2 of 2 (Wetland Maintenance Scope) as well as the assignment of funds you submitted in response to our January 18th letter. The assignment of funds is in the amount of $13,975.00 and its term is three years. As we have discussed, the assignment of funds can be reduced to cover monitoring and maintenance after the wetland enhancement has been completed and approved by Gary Schulz. If you have any questions, please contact me at 206 -431 -3663. Sincerely, Deborah Ritter Associate Planner 0 g cc: Michael Lancaster, SRO (via fax 425 -455 -8165) Gary Schulz, Urban Environmentalist Dave McPherson, Associate Engineer 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 -431 -3665 MAY 01 2001 MEMORANDUM D EV ELO PM ENT To: Deb Ritter, Planner (206- 431- 3663/fax: 206- 431 -3662) City of Tukwila From: Michael Aippersbach Re: Quik Park Project (Off - Airport Parking Facility) 3610 South 158th Street L99 -0010 (Design Review) E99 -0005 (SEPA) L99 -0064 (Special Permission - Sign) L2000 -033 (Special Permission - Buffer reduction) Date: 4 -28 -2001 /Saturday Via Mail Re: Revision to Buffer Enhancement Plan (Sheet 2 of 2) Deb, enclosed are (2) copies of the revised Sheet 2 of 2 of the Buffer Enhancement Plan. I presume you will distribute one to Gary Schulz. SRO will provide the security device to the City most likely on Monday, April 30. If I've missed or misunderstood something, you can reach me at (206) 523 -3764, e-mail me at aipp @prodigy.net or fax me at (206) 524 -0337. Thanks, Deb! encl: (2) copies of revised Sheet 2 of 2 Copy of City letter dated 1 -18 -02 (Deb Ritter) c /projects /republic /devtperm.dsk:rittme 12doc Michael Aippersbach & Associates PO Box 95429 - Seattle WA 98145 - (206) 523- 3764/Fax: (206) 524 -0337 z ■ ,1-- w Ce U. 0o: N o. L1.1 is wO g Q .a w`. z� l--0 z no 0 o —t O 1-: w w. • U. u~. 0:. Z. ui U= .aondquan' King County Department of Development and E 900 Oakesdale Avenue Southwest Renton, WA 98055.1219 Environmental Services Bond Quantity Worksheet for Critical Area Sensitive Area Mitigations Project Name: Project Number: /-gyp — f 7 7 1_ Location " o il4Vy 1 ', - cL44L- th / /11 // AS0 CU . Address: Contact Name: red. 1 C,17, va ruk-f t) i/2, 110 3 LL A4' S, '0,t1 lL, PLANT MATERIALS: Plant Material prices Include labor, Installation, contractors' markup and sa es tax, but don't include delivery. (120% of wholesale plant price plus planting' (torn pag TREES Scientific Name Common Name Unit Price Qty Unit Pric Qty Unit Pric Qty Unit Pric Qty Total 4" pot • 1 gallon 2 gallon 5 gallon Cost Ables grandis* grand fir Acer macrophyllum big leaf maple $ 13.54 $ - Alnus rubra Red alder $ 13.22 $ - Arbutus menziesil. Pacific madrone $ 14.50 $ - fietula papyrifera paper birch $ 13.22 $ - Fraxinus Iatifolia Oregon ash $ 13.22 $ 23.51 $ - Picea sllchensls* Sitka spruce • $ 13.54 $ 24.15 - $ - Pinus contorla * Shore pine $ 13.54 $ 24.15 $ - Pinus monlicola* Western white pine ' $ 13.54 $ 24.15 $ - Populus tremuloides quaking aspen $ 24.15 $ - Populus trichocarpa black cottonwood $ 13.54 $ 23.51 $ - l'runus ernarginata bitter cherry $ 13.54 $ , - Pseudotsuga menziesil* Douglas fir $ 13.54 $ 23.51 $ 44.74 $ 9'y' -oe, Taxus brevlfolia* Pacific yew $ - Tltuja plicate' western red cedar $ 13.54 $ 23.51 7 .$ 44.74 / $ /(p 4' $ 5 - - Tsuga heterophyllas ' western hemlock . $ 13.54 . $ 23.82 $ 44.74 All plant prices are from Fourth Corner Nurseries, Sound Native Plants, Storm Lake Growers, and Wabash Natives (containers); and Abundant Life and Frosty Hollow (seeds). 1 o..... ►n..,h►ilvWnrltcl►t+PlFlnal.xls Sensitive Areas Bond Quantity Worksheet 0,53'.3)( Page 1 ' August 8, 1998 BondQuan' SHRUBS Unit Price Unit Price Unit Price Total Scientific Name Common Name 4" pot Qty 1 gallon IQty 2 gallon IQty Other Qty Cost Acer clrclnatum vine maple $ 13.54 $ 23.51 $ - Amelanchler alnlfolla servlceberry b 13.54 $ 23.82 $ - Berberls aquifollum tall Oregon grape $ 24.15 $ - Gerberls nervosa short Oregon grape $ 13.86 $ - Cornus stolonifera red -osier dogwood $ 13.22 ' $ 23.51 $ 1/ l' 3 - / $ - Corylus.cornuta , hazelnut $ 13.54 $ 23.51 • Crataegus dougla'sll black hawthorn :; $ 13.22 $ 23.51 15 $ X5'2- (o i $ - Gaulllrerla shallop salal $ 41.89 $ 13.86 Holodiscus discolor ocean spray $ 13.54 $ 23.51 $ - Lonlcera involucrata black twinberry $ 13.54 $ 22.87r $ 5-1/ - 7 $ - Myrica gale sweelgale Oplopanax horridus Devil's club . $ 13.86 ' $ 24.15 $ - Philadelphus Iewisll mock orange $ 13.54 $ 22.87 $ - Physocarpus capitalus Pacific ninebark $ 13.22 $ 23.51 $ - Prunus vlrglnlana choke cherry • $ - Pyrus fusca , western crabapple $ 13.22 . $ 23.51 $ - Rhamnus purshiana cascara $ 13.22 • $ 23.51 • $ ' - Rhododendron macrophyllurn Pacific rhododendron $ 14.19 $ - Ribes bracteosum stink currant $ .13.22 $ - Ribes lacustre prickly currant $ 13.06 $ 13.86 !`� $ =YEM $ - $ 081 -7G. $ - Ribes sangulneum red - flowering currant Rosa gymnocarpa Wood rose $ 13.54 $' 24.15 Rosa nutkana Nootka rose $ 13.54 $ 23.51 a, l . Rosa pisocarpa clustered rose • $ 13.54 $ • 22.87 Rubus leucoderntls black raspberry $ - Rubus parviflorus thtmbteberry ,, $ 13.54 $ • - Rubus spectabllis salrnonberry $ 13.22 • $ 23.51 $ - Salix geyerlana Geyer willow $ 13.22 $ 22.87 • $ - Salix hookerlana Hooker's willow $ 12.91 $ 22.87 $ - Salix Iaslandra Pacific willow $ 13.22 $ 22.07 $ • - Salix scouleriana Scouter willow $ • • - Salix sltchensls Sitka willow $ 13.22 $ 22.87 $ - Sainbucus racemosa red elderberry $ 13.54 $ 23.51 $ - Sorbus sitchensis • 23.5) 11 $ a 5(6- (of $ - $ 3b1- `c mountain ash Symphorlcarpos albus snowberry $ 13.22 Aa $ 23.51 Vaccinium ovatum evergreen huckleberry $ • 13.86 Vaccinlum parvifolitnn red huckleberry $ • 2.91 $ 15,47 $ - oe atu is e C rags >tiis (i-tl; an P(tn,wt 'orksheetFinal.xis Sensitive Areas Bond •antity Worksheet Page 2 ' August '998 Z t=-Z re ..r 0 JO 0 .11 = CO t1! }O. �Q to 2d I--W Z= H 0 W~ W 0 0 t--. W ut tL O .. Z W 4 07 sr 3Ib1)000 s� aa,576 X0,25' Se • :es an I Rus es ,' A' Scientific Name Common Name Unit Price • Unit Pric Qty Unit Pric Qty Qty Total 4" •ot Seeds/oz. 2 ;allon Other Cost Carex comosa Carex Ienticularis Bristly sedge Shore sedge $ 1.32 $ 1.32 _ -__ _ $ - $ - Carex lyngbyei Lyngby sedge • $ 1.32 $ - Carex obnupta Slough sedge $ 1.32 $ 19.20 $ - Carex rostrata (ulriculata) Beaked sedge $ 1.32 Carex stipata . Sawbeak sedge $ 1.32 $ - Eleocharis acicularis Spikerush $ - Eleocharls palustris Juncus acumlnatus /uncus arliculatus Common Spikerush . Tapered rush Jointed rush $ , 1.32 $ 11.32 __- $ - $ - $ - luncus effusus(var. pacilicus, gracil Soft rush $ 1.32 • $ - Juncus ensifollus . Dagger leaf rush $ 1.32 $ - /uncus ox'ymerls Pointed rush $ 1.06 $ - Sclrpus acutus • Hardstem bulrush $ 1.32 $ 23.04 $ - Scirpus ►narit)mus Saltmarsh bulrush $ 1.32 • $ - Scirpus microcarpus Small- fruited bulrush $ 1.32 $ - Grasses Scientific Name Common Name Unit Price 1 Unit Pric Qty Unit Pric Qty Qty Total • • Seeds/oz. 2 ;allon Cost Alopecurus aequalis Short-awn foxlail = . �= $ - - Alopecurus genfculalus Beckmannla syzlgachne Water (ox Water (oxtail American sloughgrass $ 1.00 $ 1.20 $ 3.04 _ $ - Cala►nagrostls canadensis Bluejoint reedgrass $ - Cinna latifolla • Wood reed • • $ - Deschampsla caespitosa Tufted hairgrass $ . 1.06 • $ 9.60 - $ - Elymus glaucus Blue wildrye $ 1.36 55.0 $ Festuca idahoensls Idaho fescue $ 3.52' 55:6 $ • - g Festuca rubra var. rubra Red fescue $ 4.79 ,b►} $ - , , Glycerla borealis (occidenta Northern mannagrass . $ 1.60 . • $ - Glycerla elata Tall mannagrass • $ 1.45 $ • 1.60 f anicum occidentale Western panic-grass ros s a � Ferns Scientific Name Redd ��tass Common Name -- Unit Price •• 1 = Unit Pric 1 allon ,,'• Qty Unit Pric 2 ,allon Qty Qty Total Cost Athyrlum lillx- lemina lady fern $ 13.86 • . $ - l3lechnum splcant deer fern • $ 13.86 $ - Dryopteris expansa shield fern $ 13.54 $ - Polystichum munilu►n western sword fern -- $ 13.86 $ - Pteridium aqullinium bracken -- $ - BondQuantityWorksheetFinal.xls. . (a 1. Sensitive Areas Bond Quantity Worksheet 2. Page 3 ' August 8, 1998 z • W 2 J )O❑ • Jr0w = w uo Q =0 w z= i- z 2p Ww 2 1- U w Z wtn U= ;O• z 1 -ter s an Groun covers Scientific Nanie Common t`lame Unit Price • Unit Pric Qty Unit Pric Qly Qty Total 4" pot 1' gallon Seeds/oz. Cost Achillea millefolium Yarrow $ 11,52 • Anaphalis margaritacea Pearly everlasting ,1 $ ',2.27 $ 7.68 $ 33.28 $ - Arctostaphylos uva -ursi Kinnikinnick Aruncus dlolcus Goat's beard $ 13.54 $ 33.28 $ - Caltha palustrls Marsh marigold $ 14.19 $ 20.48 $ - Dicentra fonnosa Bleeding heart $ 2.27 $ 13.22 $122,88 $ -. Epilobium angustifolium' Fireweed $ 61.44 $ - Fragaria chiloensis Coast strawberry $ 2.27 $ 57.60 • . . $ - Ceum macrophyllum Big -leaf avens $ 2.27 $ 51.20 $ - l-leracleum lanatum Cow parsnip $ 1.45 $ - l•lydrophyllum tenulpes Pacific waterieaf $ 2.27 $ 17.92 $ - Linnaea borealis Twinflower $ 2.27 $143.46 $ - Cr►pinus polyphyllus Big leaf lupine . $ 6.72 $ - Lysichlton a►nericanum Skunk cabbage $ 13.86 $ - Malanthernurn dllatatum Wild lily of the valley $ 2.27 $ - Mimulus guttatus Yellow monkey flower $ 2.27 $128.00 $ - Myosotls Iaxa Small forget -me -not $ 26.88 $ - Oenanthe sarmentosa Water parsley $ 12.58 $ 44.80 $ - Osmorhiza chiloensis . Sweet cicely $ 44.80 $ - Oxalis oregana Wood - sorrel $ . 2.27 $ 09.60 $ - Petasltes frlgldus Coltsfoot $ 13.22 $ - Polygonum perslcarla Lady's thumb $ - Potentilla fruticosa Bush potentilla $ - Smilacina Melia (a Solomon's Star $ 2.27 • $ - Stachys cooleyae Great betony $102.40 $ - Telllma grandlflora Fringecup $ 38.40 $ - Tiarella trifoliata Foamflower • $143.46 $ • - Tolmiea menzlesli Piggy -back plant $ 2.27 $ 102.40 $ Viola glabella Stream violet $ 2.27 $ - cencitfve Areas Bond 'antity Worksheet misValppiniuffiSissionsamissat �. -..... r:c+w +.VIM arcwc:M Page 4 ' Augus' '.998 J • INSTALLATION COSTS ( LABOR, EQUIPMENT, OVERHEAD & PROFIT) Type i Unit Price Unit Total Compost, vegetable, delivered and spread $ 37.80 CY $ - Decompacling till /hardpan, medium, to 6" depth $ • 1.57 CY Decompacting till/hardpan, medium, to 12" depth $ 1.57 CY Fertilize, slow release tablets 30grn/tree $ • 3.21 Each $ - l-lydroseeding $ 0.51 SY • $ • - Labor, general (landscaping) $ 15.00 HR $ - Labor, general (construction $ 37.00 HR $ - Labor: Consultant, suliervisir g $ 55.00 1-IR • $ - Labor: Consultant, on -site re- design . • $ 95.00 HR $ PLANTS:. Potted, 4" diameter, medium $ 0.68 Each $ - PLANTS: Container, 1 gallon, medium soil $ 10.02 Each - $ - PLANTS: Container, 2 gallon, medium soil $ 16.47 Each $ - PLANTS: Container, 5 gallon, medium soil • $ 29.38 Each $ - PLANTS: Seeding, by hand I $ 0.44 SY $ - PLANTS: Slips (willow, red - osier) - $ 1.32 Each $ - PLANTS: Stakes (willow) I $ 0.96 Each $ - Rental of decompacting machinery & operator • $ 70.65 Hour • • Sand, coarse builder's, delivered and spread $ 42.06 CY • • $ - Staking material (set per tree) $ 7.00 Eacli ' $ - Surveying, line & grade I $ 605.44 DAY $ - Surveying, lot location & lines $ 1,353.60 ACRE $ - Surveying, topographical i $ 2,160.00 ACRE • $ - TIIlIng topsoil, disk harrow, 20hp tractor, 4 " -6" deep $ 1.02 SY $ - OTHER COSTS -- THROUGHOUT MONITORING PERIOD • Type Unit Price Unit Total • Inspection, annual • $ 460.00 EACH X Z U $ to 6 $ 575-00 Inspection, final $ 575.00 EACH . k ( Maintenance, semi - annual. $ - Maintenance, annual . • 5 )0 x S $ • - $ 1 500 -00 $ - Monitoring, annual Watering, 1" of water, 50' soaker hose $ • . 3.62 MSF Irrigalion - temporary $ 2,000.00 $ 4 500.00 Acre Acre irrigation - burled 1 RondOuantltvWorksheetFlnal.xis Sensitive Areas Bond Quantity Worksheet ,Z6Ft DO Page 5 • August 8, 1998 Z W re 2 U. 00 co 0 'W z' J I• . ,N W O J • Q co ZC3. I- W Z= H I— O Z LLI H uj UC) Oco 0 I- : WW 4--O WZ UN O~ Z HABITAT STRUCTURES (includes delivery) ITEMS Unit Cost . Unit • Total Fascines (willow) • Each $ - Logs, (cedar), w/ root wads, 16 " -24" dlam., 40' long L . 1,000.00 Each $ - Logs (cedar) w/o root wads, 16 " -24" dlam., 40' . f 400.00 Each $ - Logs, w/o root wads, 16 " -24" diam., 40' long $ 245.00 Each $ - Logs w/ root wads, 16 " -24" dlam., 40' long 5 460.00 Each $ - Rocks, one -man $ 60.00 Each $ - Rocks, twb -man $ 05.00 Each • $ - Root wads $ 163.00 Each $ • - Spawning gravel; type A • , $ • 4.00 CY $ - Weir - log . $ 1,500.00 Each • Weir - adjustable $ 2,000.00 Each ' Woody debris, large . ' $ 163.00 Each $ - Snags - anchored $ 400.00 Each Snags - on site $ 50.00 Each Snags - imported $ 800.00 Each . 'EROSION CONTROL ITEMS • Unit Cost Unit Total Backfill and Compaction- embankment $ 4.89 CY $ - • Crushed surfacing, 1 1/4" minus $ 74.30 CY $ - Ditching $ 7.03 CY $ - Excavation, bulk $ 1.30 CY . • $ - Fence, silt $ 1.20 LF $ - Jute Mesh . $ 1.26 SY • $ - Mulch, by hand, straw, 2" deep $ 1.27 SY $ - Mulch, by hand, wood chips, 2" deep $ 3.25 SY $ - Mulch, by machine, straw, 1" deep $ 0.32 SY $ - Piping, temporary, CPP, 6" $ 9.30 LF $ - Piping, temporary, CPP, 8" $ 44.00 LF $ - Piping, temporary, CPP, 12" $ 18.00 LF $ - Plastic covering, 6mm thick, sandbagged $ 2.00 SY • $ - Rip Rap, machine placed, slopes $ 33.98 CY $ - Rock Constr. Entrance 100'x15'x1' $ 2,546.60 Each $ - Rock Constr. Entrance 50'x15'x1' $ 1,273.34 Each $ - Sediment pond riser assembly $ 1,695.11 Each • $ - Sediment trap, 5' high berm I $ . 15.57 .LF _ $ - Sediment Trap, 5' high berm w /spillway Incl. riprap $ 59.60 IF $ - Sodding, 1" deep, level ground $ 5.24 SY $ - Sodding, 1" deep, sloped ground $ • 6.48 SY $ - Straw bales, place and remove $ 432.00 TON $ - Topsoil, delivered and spread $ 35.73 CY $ - • BordQuan' 'orksheetFinal.xts Sensitive Areas Bond 'antity Worksheet Page 6 ' August '998 Z OC '~ W OC JU 00 W= H W }O g J LL < In =a W 2 Z F-, I- 0 WI- LL' • U D. 0 1-• • WW 2 U U" Ailz Uco F- 5E 0 Z �a GENERAL ITEMS • - ' Unit Cost Unit Total Fencing, chain link, 6' high $ 18.89 LF $ - Fencing, chain link, corner posts $ 111.17 Each . $ - Fencing, chain link, gate I $ 277.63 Each $ - Fencin :, s•lit rail, 3' hi :h (2 -rail) $ 10.54 LF $ - Fencing, temporary (NGPE) • $ 1.20 LF $ • - . Signs, sensitive area boundary $ .l 2.50 Each $ . • • STEEP SLOPE /SLOPE INSTABILITY . • WRITE -IN ITEMS • OTHER . NOTE: All plant prices are from Storm Lake Growers Wabash Natives, Fot rth Corner and Sound Native Plants (containers); and from Frosty Hollow and Abundant Life (seeds). SUBTOTAL (SUM ALL PAGES):. 30% CONTINGENCY & MOBILIZATION: BondQuantltyWorksheetFlnal.xls TOTAL: • $ rl i(0Lt / sap-1g- 615 3 ,Pw. 4-0-01 ,-i 1 • Sensitive Areas Bond Quantity Worksheet Page 7 ' August 8, 1998 •z 'rt W � :0 0' w o• W. W I. 'J 1- CO W .w 0 �a N d. = w H = WO w 2o . 'U • 0-9- 0 1-- . WW. • 2 lL�. _ Z 0 z De ora Flitter uik Paraensitive Ar From: Gary Schulz To: Deborah Ritter Date: 3/21/01 10:46AM Subject: Quik Park Sensitive Area Bond Amount Hi Deb, I received the cost estimate for buffer enhancement plan on Monday. You should have copies I made. I reviewed all the numbers and the amount of $ 9,314.01 is the approved total. This includes a 30% contingency that takes care of significant failure or need for maintenance. The total must have the 150% required multiplier per City code. Therefore, the total for the bond or cash assignment will be $ 13,971.00. Let me know if you have questions. Gary Schulz CC: Jack Pace kits iem) MAte., CITY OF TUKWILA PUBLIC WORKS PROJECT REVIEW COMMENTS Project Name: Quick Park File #: Ord. 1878 E99 -0005 L99 -0010 L99 -0064 L2000 -033 Date: 02.05.01 Reviewer: L. Jill Mosq Street Vacation SEPA Design Review Sig nage Wetland Buffer Reduction The following lists events that must occur to complete the street vacation. Status /Comment Reference Action 1 Dedicate church property to SRO or City so street can be built. Need Statutory Warranty deed and Excise Tax forms 2 Ord. 1878 Relocate utilities or easement under the permit for the new S 158th St 2 Ord. 1878 Design and construct relocation of 5 158th St. under the "MI" permit 3 Turnover documents for new S 158th St 3 Ord. 1878 Dedicate new S 158th St to City Need Statutory Warranty Deed and Excise Tax forms. Can be part of the turnover documents. 3 Ord. 1878 SRO owes the City compensation $147,500 (1/2 of $295,000) SRO pays when dedicates. 4 Completed Ord. 1878 Sterling get consensus I Completed Ord. 1878 Independent appraisal ' Completed Ord. 1878 Present street location, X- section to Council Ord. 1878 Complete vacation by recording turnover docs, excise tax forms, warranty deeds and ordinance Projects /street vacation /3.40.53 S 158th St 1 January 18, 2001 City of Tukwila Steven M Mullet, Mayor Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 RE: Special, Permission (L2000- 033) Request for Reduction in Wetland Buffer Quik Park 3610 South 158th Dear Mr. Aippersbach: Your application for the above - referenced permit, including the Wetland Analysis Report and Buffer Enhancement Plan (dated November 7, 2000, prepared by B- twelve Associates) has been reviewed. Your request for a reduction in the wetland buffer (from 25 to 15 feet in width) has been approved subject to the following condition: • Sheet 2 of 2 of the Plan, Paragraph 4.1.1 (Maintenance Work Scope) must be revised to delete all references to the barn and its removal form the mitigation buffer area. No such structure currently exists on the site. Prior to the issuance of any land altering permits, you must provide a letter of credit or other security device (in form and content acceptable to the City Attorney) to guarantee performance, monitoring and maintenance requirements as they pertain to the wetland enhancement. The amount of such security device shall be 150% of the estimated cost of the improvements to be completed, as well as the cost of monitoring and maintenance. The cost estimate is to be provided to Gary Schulz, Urban Environmentalist, for review and approval prior to submission of the security device. Please be advised that additional adjustments to the Buffer Enhancement Plan may be necessary, subject to the outcome of the Planning Commission's Design Review hearing on your project. Satisfaction of these conditions listed above must occur prior to the issuance of any land- altering permits. The above - referenced bond can be reduced to cover monitoring and maintenance after the wetland enhancement has been completed and approved by Gary Schulz. Sincerely, Deborah Ritter Associate Planner cc: Gary Schulz, Urban Environmentalist Dave McPherson, Associate Engineer 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Michael Aippersbach & Associates Planning and Development Services RECEIVED CITY OF Ti ;Kw( e PERMIT CENTER January 12, 2001 Deborah Ritter Associate Planner Community Development Department City of .Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila WA 98188 HAND DELIVERED Re: Resubmittal of Proposed Development Plans for Quik Park, Inc. Project (Off - Airport Parking Facility) 3610 South 158th Street L99 -0010 (Design Review) E99 -0005 (SEPA) L99 -0064 (Special Permission - Sign) L2000 -033 (Special Permission - Buffer reduction) Dear Ms. Ritter, Please find attached per your request the following: • 1 copy of corrected page 9, Revised Attachment A • 1 copy of corrected page 10, Revised Attachment A • 1 copy of Attachment A -1 • 4 colored copies of freestanding sign • 3 copies of West -East Cross - section, Sheet 13A • 3 copies of revised landscaping plan sheet L -4 (showing slope planting detail) The corrected pages of the Revised Exhibit A are self - explanatory Completing the "blanks" in the original submittal. A copy of Attachment A -1 is included showing information about a community meeting to review the S. 158th Street realignment. Also the (4) colored copies of the freestanding sign are also self - explanatory. The (3) copies of Perteet drawings were revised to include (2) east -west cross - sections -- a north and a south cut through the site. The west -east cross - section of Perteet's drawing on the north includes the ravine on the west and Laurel estates on the east. The south west -east cross - section includes the proposed maintenance building on the west and the Sunnydale Apartments on the east. The landscaping plans were revised to show a slope planting detail (sheet L -4). If you have any further questions regarding these submittal materials or need more information, you can reach me at (206) 523 -3764 or fax me at (206) 524 -0337. Thanks! Michael Aippersbach c /projects /republic /desgnrev.dsk: tukap115.doc PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 z ■ W 0 0' cn 0 w i' u.. w0 2 u 4: -a =w _ z�, I— 0. Z'--. 0 ON 0 H ww u-0 iii -± ''' z City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director To: Steve Lancaster From: Deborah Ritter - 2_, Date: January 10, 2001 Re: MEMORANDUM L2000 -033 (Special Permission) Wetland Buffer Reduction Request Quik Park 3610 South 158th, Tukwila Gilliam Creek (a Type 3 watercourse corridor) is located outside the western perimeter of the proposed Quik Park project. An associated wetland in this Creek's corridor has a Type 3 rating, requiring a standard buffer setback of 25 feet. On May 29, 2000 the applicant requested a reduction in the standard buffer to 12.5 feet. However, per TMC 18.45.040(C)(4)(a), the reduced buffer shall not be less than 15 feet in width. The applicant has since revised his request (see letter dated October 9, 2000), seeking only a 15 foot buffer. Accordingly, the project plans have also been revised so as not to encroach upon the 15 foot wetland buffer. Slopes in the buffer area are less than 20 %. The attached Wetland Analysis Report and Buffer Enhancement Plan was prepared by B- twelve Associates, dated November 7, 2000. Gary Schulz gave his final verbal approval on this report and plan on January 9, 2000. Gary's technical review comments, dated December 11, 2000, are also attached. Prior to issuance of any land altering permits the applicant will be required to produce a bond to guarantee performance, monitoring and maintenance as they pertain to the wetland buffer enhancement. The amount will be 150% of the estimated costs, to be pre- approved by Gary Schulz. After the wetland enhancement has been completed and approved, the bond may be reduced to cover only monitoring and maintenance. APPROVED: Steve Lancaster Director of Community Development Date: O)- J7- O' 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 z • mow. 6 J0. 00. N O: w z' w, wo uj u-a _, z� 1-o zI- • U� 0 H- ww Z U N. 0 z JAN -10 -2001 11:37 AM AIPPERSSACH & ASSOC 2065240337 P.01 MEMORANDUM To: Deb Ritter, Planner (206 - 431- 3663/fax: 206 - 431 -3662) City of Tukwila From: Michael Aippersbach Re: Quik Park Project (Off- Airport Parking Facility) 3610 South 158th Street L99 -0010 (Design Review) E99.0005 (SEPA) L99.0064 (Special Permission - Sign) L2000 -033 (Spedal Permission - Buffer reduction) Date: 1- 10- 2001/Wednesday Via Fax: (206) 431 -3665 Re: Remaining Submitttal Items z w 2o Deb, just a status update on the forthcoming documents per your request for the Cite' 3 o cn x. review. It looks as if I will have everything you have requested to date by this Friday. a F- wW HU wo ui z =. 0 z Just to confirm that I have everything, please review the following list of items I will be providing to you: • 1 copy of corrected page 9, Revised Attachment A • 1 copy of corrected page 10, Revised Attachment A • 4 colored copies of freestanding sign • 3 copies of East -West Cross- sections (a north and a south cut), Sheet • 3 copies of revised landscaping plans, Sheet L -4 (adding a slope planting detail) If I've missed or misunderstood something, you can reach me at (206) 523 -3764, e-mail me at aipp @prodigy.net or fax me at (206) 524 -0337. Thanks, Deb! a/p rojectatrepublddeagore v.dak:riRmel Odoc Michael Aippersbach & Associates PO Box 95429 - Seattle WA 98145 - (206) 523- 3764/Fax: (206) 524-0337 • Ciiy of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director MEMORANDUM TO: Steve Lancaster, DCD Director Deborah Ritter, Associate Planner FROM: Gary Schulz, Urban Environmentalist DATE: December 11, 2000 RE: Quik Park #E99 -0005, #L99 -0010 — Sensitive Areas Technical Review. This memo is a review of recently submitted wetland information provided by B- twelve Associates, Inc. (SRO/Republic Parking -Quick Park, Wetland Analysis Report 11/7/00). As requested, the report addresses corrections and revisions concerning sensitive areas on the project site. Also included is a revised wetland buffer enhancement plan that has been slightly adjusted to reflect changes to the wetland boundary within the watercourse corridor. This buffer enhancement plan supports the request to approve limited buffer reduction adjacent to the watercourse corridor (Gilliam Creek). The buffer enhancement plan, date - stamped Received 11/8/00 has now been reviewed. This memo is recommending approval of the wetland analysis and buffer enhancement plan as submitted by B- twelve Associates. Related changes to the site plan set will also need to be confirmed based on recommended sensitive area mapping and labeling. The comments listed below are minor but a part of my review. Wetland Areas The small treed area on the northeast side of the site was re- reviewed by B- twelve Associates. They had previously concluded this area does not have wetland hydric soils and it is assumed the wetland hydrology criteria would not be present. This is now referred to as `B- twelve area of concern #1" in their 11/7/00 Wetland Analysis Report. As previously stated and for better clarification, this area's soil profiles and conditions indicate the area has some seasonal drainage and is a marginal situation. Contrary to information included in the B- twelve Wetland Analysis, the GeoEngineers' site investigation (Republic Parking report 12/20/00) documented shallow groundwater in many of the test pits (Groundwater - page 3). In particular Test Pit — 6, located upslope of the "area of concern ", noted moderate ground water seepage at depths of 4 to 5 feet. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Quik Park Memo December 11, 2000 Page 2 Seasonal hydrology in the form of seepage and ponding may be observed in the questioned area. However, the wetland determination criteria for hydric soil is not met because the indicators that are present are at depths just below the minimum of 10 inches. Wetland Buffer Enhancement Plan The Buffer Enhancement Plan date - stamped 11/8/00 has been reviewed and appears very complete. The only comment is to remove language under 4.1 Maintenance Work Scope that refers to barn removal in the mitigation buffer area. After the Design Review Hearing and an approved site plan, the Buffer Enhancement Plan will be revised and include the Mitigation Performance amount with a factor of 150 percent to insure its completion and success. Cc: Jack Pace, Planning Manager z Z 6 U' UO: co o -u) w LL in O: g Q; =a _ z I.-, • Z U ' N O ' 0 F-: W, .I U' F- — - —O ill z.. • O H Michael Aippersbach & Associates Planning and Development Services RECEIVED CITY OF TUKWILA DEC - 8 2000 PERMIT CENTER December 8, 2000 Deborah Ritter Assistant Planner Community Development Department City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila WA 98188 Re: Resubmittal of Proposed Development Plans for Quik Park, Inc. Project (Off - Airport Parking Facility) 3610 South 158th Street L99 -0010 (Design Review) E99 -0005 (SEPA) L99 -0064 (Special Permission - Sign) L2000 -033 (Special Permission - Buffer reduction) Dear Ms. Ritter, Please find attached the following: • 5 sets of Proposed Development Plans • 2 copies of Technical Information Report (dated December 2000) • 5 copies of Revised Environmental Checklist (dated 12 -7 -2000) If you have any question regarding this submittal materials or need more information, you can reach me at (206) 523 -3764 or fax me at (206) 524 -0337. Thanks! Sincerely, %.4eitt ate._ Michael Aippersbach c /projects / republic /desgnrev. dsk:tukapl l4.doc PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 z a z w ual � UO: o W =: J � w o' g ¢. co F- w o z I— U� oCO, o • w wz Uco 0 I— z • Michael Aippersbach & Associates Planning and Development Services November 8, 2000 Deborah Ritter Assistant Planner Community Development Department City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila WA 98188 Hand Delivered Re: Quik Park, Inc. Project (Off- Airport Parking Facility) 3610 South 158th Street L99 -0010 (Design Review) E99 -0005 (SEPA) L99 -0064 (Special Permission - Sign) CITY OF TUK RECEIVED L 4 NOV - 8 2000 PERMIT CENTER Dear Ms. Ritter, Enclosed are two (2) copies of a Wetland Analysis Report and two (2) copies of a Buffer Reduction/ Wetland Enhancement (Mitigation) Plan prepared by B- twelve Associates. Please give this matter your earliest attention. If you have any question regarding the above, you can reach me at (206) 523 -3764 or fax me at (206) 524 -0337. Thanks! Sincerely, fioticci affkatrA, Michael Aippersbach c /projects/ republic /desgnrev.dsk:tukapl l3.doc PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 „r— ...cam» .. VIRMSK M19 ' 4i1/ t B- twelve Associates, Inc. NOV - 8 2000 PERMIT CENTER SRO/Republic. Parking -Quick Park Wetland Analysis Report Tukwila, WA Republic, Parking Northwest, Inc.. 5221 Ballard Ave. NW Seattle, Washington November 7, 2000 Job# A0 -177. ;_B- twelve Associates, Inc. 1103 W. Meeker Street, Suite C Kent WA 98032 Phone: 253- 859 -0515 Fax: 253- 852 -4732 November 7, 2000 B- twelve Associates, Inc. Mr. Gary Beck Republic Parking Northwest, Inc. 5221 Ballard Ave. NW Seattle, WA 98107 RE: Quick Park of WA Wetland Services —Job # AO -177 Dear Gary, 1103 W. Meeker St. Suite C Kent, WA 98032 -5751 (v) 253- 859 -0515 (f) 253 - 852 -4732 (e) info @b12assoc.com Per your request, we have completed a review of the Quick Park site to determine the presence of wetlands on the parking lot site. The Quick Park site is located to the south of HWY 518 and east of Military Road within the City of Tukwila. Our investigation identified three areas of concern: 1) B- twelve Wetland A, a wet area associated with the creek; 2) B- twelve Area of Concern #1, a possible wetland area near the southeast corner of the project site to the north of the existing S 158th St., and 3) Shapiro Wetland A, a small wetland area delineated by Shaprio & Associates in the southwest portion of the site to the south of S 158th Street. See Exhibits A- Vicinity Map and B -Site Map METHODOLOGY Ed Sewall and Sue Burgemeister visited the site three times during August and September 2000. Mr. Sewall visited the site again on September 7, 2000 and November 1, 2000. The methodology used to identify jurisdictional wetlands is described in the Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987) as required by the U.S. Army Corps of Engineers. This is the methodology currently recognized by the City of Tukwila. The area was also investigated using the Washington State Wetlands Identification and Delineation Manual (WADOE, March 1997), as required by the State of Washington for wetland determinations and delineations. The Corps of Engineers Wetlands Delineation Manual and the Washington State Wetlands Identification and Delineation Manual both require the use of the three - parameter approach in identifying and delineating wetlands. A wetland should support a predominance of hydrophytic vegetation, have hydric soils and display wetland hydrology. To be considered hydrophytic vegetation, over 50% of the dominant species in an area must have an indicator status of facultative (FAC), facultative wetland (FACW.), or obligate wetland (OBL), according to the National List of Plant Species That Occur in Wetlands: Northwest (Region 9) (Reed, 1988). A hydric soil is "a soil that is saturated, flooded, or ponded long enough during the growing season to develop anaerobic conditions in the upper part". Anaerobic conditions are indicated in the field RE: Quick Park, # A0 -177 B- twelve Associates, Inc. November 7, 2000 Page 2 of 6 by soils with low chromas (2 or less), as determined by using the Munsell Soil Color Charts; iron oxide mottles; hydrogen sulfide odor and other indicators. Generally, wetland hydrology is defined by inundation or saturation to the surface for a consecutive period of 12.5% or greater of the growing season. Areas that contain indicators of wetland hydrology between 5% -12.5% of the growing season may or may not be wetlands depending upon other indicators. Field indicators include visual observation of soil inundation, saturation, oxidized rhizospheres, water marks on trees or other fixed objects, drift lines, etc. Under normal circumstances, indicators of all three parameters will be present in wetland areas. OBSERVATIONS Existing Background Information Prior to visiting the site, a review of several natural resource inventory maps was conducted. Resources reviewed include the National Wetlands Inventory Map, and the Tukwila Planning Area "Soil Groups" and "Hydrology " Inventory maps. (The city lies outside the King County Soils Survey mapping area) The National Wetlands Inventory map does not depict any wetlands located on or within 150 feet of the site. The Tukwila Hydrology Inventory map does not show any wetland within 150 feet of the site. This map does show that a tributary of Gilliam Creek is present along the western edge of the proposed project site. A report titled "Geotechnical Engineering Services Proposed Parking Lot, Tukwila, WA" prepared by GeoEngineers and dated December 20, 1999 was reviewed. Test Pit #5 appears to be close to our study area. Although their work was completed during the rainy season, no comments regarding standing water, flowing water, or saturated soils in the general vicinity of the study area are included in either the text of the report or the Test Pit # 5. See Attachment 1 Field Observations- The project site consists of rolling topography that slopes generally to the north. The majority of the site is covered with grasses and shrubs (primarily blackberry) with several small patches of mixed deciduous immature forest. A relatively deep ravine bounds the western side of the project area. A tributary of Gillian Creek flows to the north through this ravine. A home foundation and well house indicate that the site probably was a farm at one time. See Exhibit B. The site appears to have been used for a variety of purposes over the last 30 -40 years including pasture. GeoEngineers noted several areas of fill throughout the site. r RE: Quick Park, # AO -177 B- twelve Associates, Inc. November 7, 2000 Page3of6 B- TWELVE WETLAND A B- twelve Wetland A is a small (5,039sf) emergent wetland with a few scattered trees and located along a stream channel on the west side of the site. Ed Sewall delineated the edges of this wetland on Nov. 1, 2000. This wetland was flagged with sequentially numbered pink flagging labeled Al -A15 and surveyed by Pelted Engineering. The wetland is characterized by a ditch -like stream channel through the center with a near 100% cover of reed canary grass (Phalaris arundinacea). Several scattered cottonwoods are within the wetland at its lower, north end. These trees comprise less than 10% of the total area of the wetland. No flow was observed in the channel through the wetland during our site visit although water was entering the channel upstream from the wetland. Soil pits excavated within this wetland revealed a dark silt loam soil overlying a loamy sand at a depth of 10 " -14 ". Soils were saturated at a depth of 6" near the center of the wetland. See Attachment 3 According to the US Fish and Wildlife wetland classification method (Cowardin et al. 1979), Wetland A would be classified as PEM1F (palustrine, emergent, persistent, seasonally flooded/saturated). This wetland meets the City of Tukwila criteria to be classified as a Type 3 wetland, based on the small size (less than one acre) and lack of forested vegetation class. Type 3 wetlands typically include a 25 -foot buffer from the wetland edge. B- TWELVE AREA OF CONCERN #1 The area of our investigation is a small, forested area located to the north of S 158th St. and generally in the southeastern corner of the proposed project site. Ed Sewall inspected the site on September 7, 2000 and again on November 1, 2000. A combination of field indicators, including vegetation, soils, and hydrology were used to determine whether wetlands are .present in the area of our investigation. The study area is located to the west of a former house pad and well located near the southeastern corner of the project site. More specifically, the study area is located 160 feet north of existing S 158th Street and approximately 180 feet west of the eastern property line. The study area is approximately 1500 square feet in size and includes a grove of trees together with areas immediately outside the grove. The study area lies near the bottom of a broad swale that generally parallels S 158th Street before it turns to the north, flattens out and looses definition as a swale or drainage feature. An existing residential power line (North Line) extends from S 158th Street north to a lighted billboard near the northern edge of the property along Hwy. 518. A poorly j J ,RE: Quick Park, # AO -177 B- twelve Associates, Inc. November 7, 2000 Page 4 of 6 maintained gravel road parallels this line extending from S 158th to the billboard. This gravel road roughly forms the eastern boundary of the area of concern of our study. A second power line (West Line) extends to the northwest from the North Line approximately 180 feet north of S 158th Street. A very poorly maintained gravel road parallels this power line, extending from the North Line road west to a second billboard near Hwy. 518. This West power line road lies approximately 20 feet north of the study area. Vegetation: Vegetation in the forested part of the study area is dominated in the overstory by immature black cottonwood (Populus balsamifera) ranging from 18' -40' in height. Several immature red alder (Alnus rubra) are also scattered throughout this small cluster of trees and are more numerous along the eastern side of the study area near the North power line road. Understory in this area includes a mix of Himalayan blackberry (Rubus discolor), and reed canary grass (Phalaris arundinacea). A mix of weedy upland species such as thistle (Cirsium arvense) and tansy (Taaesetum vulgare) are also found throughout the understory. Himalayan blackberry forms a monoculture upslope of the forested area for 100 -150 feet and to the west for approximately 100 feet. The north side of the tree cluster is a monotypic stand of reed canary grass as well as dense patch of giant knotweed (Polygonum sachilinense). Although the area meets the vegetation parameter in this area, it is made up of fast growing opportunistic species that are known to quickly colonize disturbed soils and do not always indicate the presence of a wetland. See Attachment 2, Data Forms 1 -4 Soils: Soil pits excavated within the forested area include DP #2 and DP #3. Several other pits were also excavated with similar soils as these two pits but were not recorded. Although several pits had black soil colors in narrow horizons, close inspection of the soil revealed these horizons to be loaded with fine charcoal and burned wood debris. In addition, other debris in the pits (pieces of brick, glass, etc.) indicates that the area was used as a burn pit for wood slash and/or homeowner trash. Soil pit DP #2 did have a matrix chroma of 2 with redoximorphic features. However, this was found at a depth of 14" and was within till. Due to the depth of these features being below 10" they were not considered indicators of hydric soils. No indicators of hydrology were noted in the upper 10" of the pit. Soil pits dug upslope in the vicinity of the blackberry and down slope in the vicinity of the reed canary grass include DP #1 and DP #4. It is our conclusion that the soils in the study area do not meet the criteria of hydric soils. See Attachment 2, Data Forms 1 -4 z 6 —I C.) 00 J = F- U) w w0 J u.Q d _ ▪ w zF- I— O Z 1- w w o ff• '. CI E- wW H— w r. O .Z' U(I) 0 z RE: Quick Park, # A0 -177 B- twelve Associates, Inc. November 7, 2000 . Page 5 of G Hydrology: No standing water or saturated soils were noted in the study area during our site visits. Several deep tire ruts through the center have disturbed the study area. These z rutted areas have indicators of hydrology including some matted leaf litter and sediment =1` marks. However, these indicators are limited to the area of tire ruts and are not present '� z immediately outside the disturbed area. QQ n JU 00 Due to the time of year (late summer), lack of hydrology might not be a definitive u) 0 iii indicator that hydrology is present or absent. However, in our opinion, water probably is _ ~ present in parts of the study area during periods of heavy rainfall because the West power u) u., line road appears to be a "dam" that can cause an artificial blockage of surface flows w O --, passing down slope to the north from the swale. This dam could temporarily delay storm 5 water in the study area. Therefore, surface water may be present for short periods after U.. storms events until it can move naturally down slope or percolate. = d I— 111 zF- i Discussion And Conclusion: Although the Area of Concern #1 is dominated by O hydrophytic vegetation, the dominant species are "Facultative" only, indicating that 50% w I-- .-, of the time these species are present in non - wetland situations. Therefore, the vegetation 2 D } parameter, while met, is not definitive. 0 u' O 0 F- S oils within the study area are not hydric; therefore, the soil parameter is not met. = ui Hydrology was not present during our site visit. We did observe indicators of hydrology LI O' in some of the disturbed areas within the study area. However, due to the lack of hydric v �. soils in the study area in the upper 10" of the data pits, we conclude that the water, while F o occasionally present during storm periods, is not present for long enough periods during z normal growing seasons to meet the hydrology parameter for wetland determination. Based on these observations, it is our opinion that Area of Concern does not meet the Federal or city criteria to be identified as a wetland according to the City of Tukwila Municipal Code Chapter 18.45 because the three - parameter test is not met. See Attachment 2, Data Forms 1 -4 SHAPIRO WETLAND A In its report to SRO dated July17, 2000, Shapiro & Associates identified a very small wetland on the portion of the site that is bounded by S 158th Street to the west and north and Military Road S to the west. See Attachment 4 Based on presence of hydrophytic vegetation, hydric soils, and indicators of hydrology in the soils, Shapiro delineated an isolated, scrub -shrub wetland that they estimated to be approximately 180 square feet in size. R13: Quick Park, # AO -177 B- twelve Associates, Inc. November 7, 2000 Page 6 of 6 Because of its very small size, isolated setting, and lack of forested vegetation class, this wetland would be classified as a Type 3 wetland according to the City of Tukwila Municipal Code Chapter 18.45. However, Section 18.45.115 of the code provides that isolated, very low value wetlands that are less than 1,000 square feet in size can be filled without mitigation. Thus, isolated, low value Type 3 wetlands less than 1,000 square feet in size are generally considered "not regulated" by the City. B- twelve noted this small area of hydrophytic vegetation during its September site visit and agrees that the area, if it meets wetland criteria, would be isolated and significantly smaller than the 1000 square foot regulated size for Type 3 wetlands. SUMMARY Two small wetlands are located on the proposed project site. B- twelve identified and delineated a small Type 3 wetland associated with the drainage course near the western edge of the project, `B- twelve Wetland A" A small forested Area of Concern located near the south west corner of the site to the north of S 158th St. does not meet the three parameters required by the USACOE and the City of Tukwila to be identified as a wetland. An extremely small isolated Type 3 wetland identified by Shapiro and Associates to the south of S 158th Street falls below the City of Tukwila size for wetland regulation, "Shapiro Wetland A ". Please call either Ed Sewall or me if we can answer any questions or provide additional information. Sincerely, B- twelve Associates, Inc. Susan L. Burgemeister President Enc. Cc: George Reynolds, Perteet Engineering Michael Aippersbach & Associates File sb\AO177WA.doc z =Z. w 0 00 N0 w= (1)u- w0:. g a' co n z d` _ z_ �. F-- 0 w~ Uca :0 — ww 1— U z ui U CO z File: L 00 -0033 5mm Drawing #1 • SIENTr © • [WE HUAlTo®Gv1/AL ADM:DO T ,.,al:1140.1q Z W • 2. JU .0 O .c ILI 11)_ • • W WO �a � d F- 2 Z f... :1- O W :Oh �: W tU W 1 _ O. w z: UN O Z 08/21/00 11:05 '8`2535890399 Geo Engineers Republic Parking c/o Perteet Engineering, Inc. 10209 Bridgeport Way Southwest, Suite C -1 Lakewood, Washington 98499 Attention: George'Reynolds PERTEET A rmcH. / December 20, 1999 Report Geotechnical Engineering Services Proposed Parking Lot Tukwila, Washington GET File No. 7704 - 001 -00 0 002 Consulting Engineers and Geoscientists Offices in Washington, Oregon, and Alaska INTRODUCTION This report presents the results of our geotechnical evaluation for .the proposed Republic Parking Lot located north of the intersection of 160th Street and Military Road in SeaTac,' Washington. The approximate location of the subject site is shown in Figure 1, the Vicinity Map. The proposed layout of the site with the approximate locations of our subsurface explorations is shown in Figure 2, the Site Plan. We understand that you are considering construction of an asphalt -paved parking lot on the site. We also understand a portion of South 158th Street will be moved to the south. The southern and central portions of the site will be cut. Based on information provided by you, we further understand that the excavated soil will be used to fill the northern portion of the site and retaining walls will be constructed throughout the site, SCOPE The purpose of our services is to evaluate the surficial soil and water conditions at the site as a basis for providing geotechnical recommendations for construction of the parking lot. The specific scope of services completed for this project includes the following: 1. . Review available geologic and Soil Conservation Service maps of the site. 2. Explore subsurface conditions at the site by excavating 11 test pits throughout the site using a trackhoe. 3. Provide recommendations for site preparation, including grading and filling. . 4. Provide recommendations for subgrade preparation for the relocated street. GeoEngineers, Inc 8410 154th Avenue N.B. Redmond, WA 98052 Telephone (425) 861 -6000 Fax (425) 8614050 wwwgeaengineers.com • 1.-••••• 1 08/21/00 11:05 '8`2535890399 PERTEET X1003 Republic Parking c/o Perteet Engineering, Inc. December 20, 1999 Page 2 5. Provide recommendations and specifications for retaining wall options. 6. Provide recommendations for site drainage and control of any ground water that may be encountered. 7. Summarize our conclusions and recommendations in a written report. SITE CONDITIONS SURFACE CONDITIONS The site is situated on an upland area in the extreme southwestern portion of the City of Tukwila. The site is bounded by residential development to the east and south, by a theater parking lot to the west and by Highway 518 to the north. The site consists of about 10 acres of undeveloped property. A portion of South 158th Street is located in the southem portion of the site. We understand that this street will be relocated to the southern and eastern portions of the site as a part of this development as shown in Figure 2. The site is presently undeveloped. Two elevated billboards are located in the northwest and northeastern portions of the site. The remainder of the site north of South 158th Street is vegetated with scattered trees and blackberry bushes. Th.e portion of the site south of South 158th Street is vegetated with fir and alder trees with a moderate to heavy understory of blackberries, ferns and brush. Topographically, the site generally slopes downward to the north. A lamb is located in the northern portion of the site. A relatively deep ravine is located west of the knob; a shallow drainage course is located east of the knob. The remainder of the site is relatively flat with a downward slope to the north. Areas of 30 to 40 percent slope exist on all sides of the knob. Areas of 20 to 50 percent slope exist,in the extreme southern portion of the site. HISTORICAL CONDITIONS Historical conditions at the site were evaluated by a review of historical aerial photographs at Walker and Associates, located in Renton, Washington, on November 22, 1999. A review of the photographs revealed the former presence of two houses on the subject property. The houses were located south of existing South 158t Street. One house was located in the southwestern portion of the site, near the intersection of South 158' Street and Old Military Road. This house was torn down sometime before 1956 but after 1946. The second house was Iocated in the southeastern portion of the site. A paved driveway still exists in this area. This house was torn down sometime before 1980 but after 1974. Metal debris was observed in this area during our site visits. SUBSURFACE EXPLORATIONS Subsurface conditions at the site were • evaluated by excavating 11 test pits with a tracked excavator on November 30, 1999. The-test pits extended to depths ranging from about 7 to 13 feet (9R^t: iSiK' fL�". R+ AYRAMWH 't�+.`..1ti!+n»n,.�y�.•r..r. • • 08/21/00 11:06 $2535890399 PERTEET 1j004 Republic Parking • c/o Perteet Engineering, Inc. December 20, 1999 Page 3 below the existing ground surface. The test pits were located in the field by our representative by taping or pacing from existing site features such as property corners and roadways. The approximate locations of the test pits are shown on the Site Plan. The locations should be considered accurate to the degree implied by the measurement methods. The test pit excavations were continuously monitored by our representative who maintained a . log of the subsurface conditions, visually classified the soils encountered, • and obtained representative soil ,samples as needed. The soils encountered were visually classified in general accordance with the system described in Figure 3. The logs of the test pits are included as Figures 4 through 9. SUBSURFACE CONDITIONS Soil Subsurface conditions at the site appear to consist of a relatively thin layer of Vashon age glacio - lacustrine or recessional outwash deposits over glacial till. A small amount of fill soil was also encountered above the till in two of the test pit explorations (TP -6 and TP -8). Glacio- lacustrine soils were encountered to a depth of 7 feet below ground .surface in test pit TP -2. The glacio- lacustrine soil consists of a laminated deposit of medium stiff to stiff silt with sand. Vashon recessional outwash soils were encountered in test pits TP -1, TP -3, TP-4, TP -6, TP -7 and TP -9. Recessional outwash consists of a loose to medium dense mixture of sand with variable amounts of gravel and silt. The outwash was encountered to depths ranging from 3 to 6 • feet below ground surface in these test pits. A small amount of fill soil was encountered in test pit TP -8. The fill soil was encountered to a depth of 3 feet below ground surface and appears to be related to a house which was located near this test pit location. Unweathered glacial till was encountered beneath the fill, recessional outwash and glacio- lacustrine soils, to the full depth explored in the test pits. The glacial till soils consist of a very dense mixture of silt, sand and gravel that was deposited directly beneath the advancing ice sheet. Groundwater Shallow ground water seepage was observed in all of the test pit explorations except for TP -3 and TP -9. The ground water seepage observed in the other test pits generally occurs at the recessional/till contact. The ground water seepage varies in amount from slow (test pits TP -2, TP-4, TP -8 and TP -10) to rapid. (TP -7). Ground water seepage was most abundant in test pits TP -1, TP -6, TP -7 and TP -11. Shallow ground water seepage at the site is likely seasonally influenced. The shallow ground water table encountered in the test pits likely dries out during extended periods of dry weather. c:r :INTI:. nrrneinn.t. nn 08/21/00 11:09 ''2535890399 PERTEET -1- •1 Republic Parking c/o Perteet Engineering, Inc. December 20, 1999 Page 4 @j 0 01 CONCLUSIONS In our opinion, the project site is suitable for the proposed development with respect to geotechnical considerations. The on -site soils contain a high percentage of fines (material passing the U.S. No. 200 sieve) and are very moisture - sensitive. Operation of equipment on the site soils will be difficult, if not impossible, when wet. Site preparation and earthwork should be completed during periods of extended dry weather, if feasible, to reduce grading costs. A significant amount of shallow ground water was encountered in several of the test pits at the site. If site preparation activities occur during the wet winter months we expect that the control of shallow ground water at the site, especially in areas to be cut, will be difficult. SITE PREPARATION AND EARTHWORK General We recommend that all fill debris, building foundations, existing asphalt, sod, brush, trees and associated stumps, and other unsuitable materials be stripped from the site. Areas to receive fill should be stripped down to medium dense to dense native soils prior to placement of structural fill. We expect stripping depths on the order of 2 to 3 feet in these areas. We recommend that the areas to receive fill be proofrolled with a loaded dump truck after the unsuitable soil is removed. Any areas of unsuitable soil identified during proof rolling should be removed from the site. Prior to placement of fill, the exposed subgrade should be compacted to a firm and unyielding condition. We recommend that the area of the former houses be evaluated for the potential presence of septic tanks and heating -oil underground storage tanks (USTs) before stripping activities occur in these areas. If tanks are found they should be removed and disposed of by a contractor Iicensed and certified to remove USTs. Proposed Realignment of South 158th Street We recommend that the proposed alignment for South 158th be cut to provide a minimum of 2 feet below the base of the proposed asphalt subgrade. The exposed subgrade should be compacted to at least 95 percent of maximum dry density. Areas too wet to compact properly should be dried out or removed and replaced with compacted fill. We recommend that the roadway subgrade be filled with a free- draining sand and gravel fill, that contains less than 5 percent fines. The subgrade fill should be compacted to at least 95 percent of the maximum dry • density. STRUCTURAL FILL All fill placed in embankment areas, building, and pavement areas should be placed as structural fill and should be free of organic material and cobbles larger than 6 inches in diameter. All structural fill should be compacted to at least 95 percent of the maximum dry density Filc,No:,7,704! 01,:00 „., 08/21/00 11:10 $2535890399 Republic Parking c/o Perteet Engineering, Inc. December 20, 1999 Page 5 PERTEET 01002 determined in accordance with ASTM D -1557 test procedures. The fill should be placed in horizontal lifts with a maximum loose thickness of about 10 inches and each lift should be uniformly compacted to the specified density. The on -site recessional outwash soils may be satisfactorily re -used as structural fill during dry- weather conditions. The suitability of soil for use as structural fill will depend on its gradation and moisture content. at the time of placement. As the amount of fines (soil particles smaller than the No. 200 sieve) increases, soil becomes more sensitive to excess moisture. Adequate compaction of soil with a high fines content and excess moisture will be essentially impossible to achieve. The glacio- lacustrine and glacial till soils encountered in the test pits have a high fines and moisture content and as such will be difficult if not impossible to compact during wet weather conditions. If site - grading work must be completed during wet weather conditions it will be necessary to import fill material that can be readily placed and compacted if the grading work is to proceed. We recommend that any imported select granular fill have no more than 5 percent fines, by weight passing the 3/4 -inch minus material. WALL OPTIONS General We understand that several retaining walls will be built at the site as ,a part of this project. The approximate locations of the proposed retaining walls are shown in Figure 2. The walls will range in height from 2 to 9 feet and will mostly retain fill soils. We understand that one wall south of the proposed new alignment of South 158th Street will retain a cut slope. This wall will attain a maximum height of 8 feet. We further understand that you are considering a rockery wall for this portion of the site. Based on the soil conditions encountered in the test pit explorations, and .our understanding of the project, we recommend that for wall elements greater than 4 feet in height, modular block retaining walls be considered for retaining fills at the proposed development. Rockery walls can be used to retain fills less than 4 feet in height. The walls should be founded on dense to very dense native soils. For walls founded as recommended we recommend using a soil bearing pressure of 3,000 pounds per square foot (psf) for design purposes. Detailed design recommendations for retaining walls are not part of the scope of this study. However, we can provide that service when design plans are developed, if requested. Many variations in wall design may be applicable to this site. We will be pleased to provide recommendations to assist in selection of retaining wall types as appropriate. Wall Fill Placement We understand from review of the information provided by you, that earth fills will be placed on the northern and western portions of the property on slopes that are presently inclined up to 30 08/21/00 11:10 $2535890399 Republic Parking c/o Perteet Engineering, Inc. December 20, 1999 Page 6 PERTEET E1 003 percent slope. We also understand that earth fills will be placed in the approximate center of the site. The plans provided by you indicate that .the fills will be retained by walls that will range in height from 1 to 9 feet. The fill material must be placed and compacted using proper hillside grading techniques. It is critical that the constructed fill is benched into the existing slope face. Bench excavations should be level and extend into the slope face until a vertical step of about 3 feet is constructed. The bench excavations must extend into medium dense to dense native soils. We recommend using a granular structural fill for the hillslope fills that contains no more than 5 percent by weight material which passes the No. 200 sieve for wet weather construction. During dry weather the fines content can be greater, providing that compaction is achieved. The fill should be placed in loose lifts of about 8 to 10 inches in thickness. Fill material placed within 2 feet below the bottom of the pavement structure should be compacted to at least 95 percent of the maximum dry density of the soil based on ASTM D 1557. Fill material placed at a depth greater than 2 feet below the bottom of the pavement structure should be compacted to 90 percent of this same standard. We recommend that fill material placed in the upper 1 foot of the proposed parking lot and street pavement areas consist of well - graded sand and gravel containing no more than 5 percent fines, based on the fraction passing the 3/4 -inch sieve. Fill placed below this layer can consist of on -site material or sillier imported material, providing that it can be conditioned to the proper moisture content and properly compacted. As stated in the .previous sections, for wet weather placement, we recommend that all imported fill consist of sand or sand and gravel with less than 5 percent fines. Wall Fill Drainage We recommend that contour subdrains should be installed at the rear of each bench to control anticipated ground'water seepage. The subdrains should be installed concurrently with the fill. The drain should consist of a free - draining sand and gravel drainage material, placed in a trench about 2 feet wide, fully encapsulated within a suitable geotextile filter fabric, such as Mirafi 140N (or similar material). A heavy -wall perforated pipe should be installed near the bottom of each subdrain, underlain by at least 3 inches of drainage material. Pipes should have minimum slopes of 1 percent and should drain toward suitable collector and discharge points away from the fill section. All subdrain lines should include cleanout risers. Discharge pipes should be covered with heavy galvanized wire mesh to prevent rodent access. Lateral Pressures The lateral soil pressures acting on the modular block walls will depend on the ground surface configuration behind the wall, and the amount of lateral wall movement that can occur 4' 08/21/00 11:11 122535890399 J Republic Parking. c/o Perteet Engineering, Inc. December 20, 1999 Page 7 PERTEET a004 after the wall is built. We have assumed that the wall backfill material is well- drained, has been compacted according to our specifications, and is capped by asphalt. Walls constructed as recommended may be designed using 35 pounds per square foot, multiplied times the wall height, to derive an active earth pressure in pounds per cubic foot (pcf) for horizontal backfill surfaces. For passive pressure, we recommend using 300 pounds per square foot, multiplied by the wall }eight, to derive a value in pcf. Friction resistance can be computed using a coefficient of friction of 0.35 applied to the lateral soil pressures. FOUNDATION SUPPORT We understand that a small office structure will be constructed in the southeastern portion of the site. We also understand that stormwater vaults may be installed in the northeast and northwest corners of the site. We recommend that spread footings for the office structure, and vault footings be founded on medium dense to dense native soils or on adequately compacted structural fill that extends to suitable native soils. The soil at the base of the excavations should be disturbed as little as possible. All loose, soft or unsuitable material should be removed or recompacted, as appropriate. A representative , from our firm should observe the foundation excavations to determine if suitable bearing surfaces have been prepared. All footing elements should be embedded at least 18 inches below grade for frost protection. We recommend a minimum width of 2 feet for isolated footings and at least. 16 inches for continuous wall footings. Footings founded as described above can be designed using an allowable soil bearing capacity of 3,000 pounds per square foot (psf) for combined dead and long -term live loads. The weight of the footing and any overlying backfill may be neglected. The allowable bearing value may be increased by one -third for transient loads such as those induced by seismic events or wind loads. Lateral loads may be resisted by friction on the base of footings and the office floor slab and as passive pressure an the sides of footings. We recommend that an allowable coefficient of friction of 0.35 be used to calculate friction between the concrete and the underlying soil. Passive pressure may be determined using an allowable equivalent fluid density of 250 pounds per cubic foot (pcf). A factor of safety of 1.5 has been applied to these values. LIMITATIONS We have prepared this report for use by Perteet Engineering, and their agents for use in design of a portion of this project: The data and report should be provided to prospective contractors for their bidding or estimating purposes, but our report, conclusions and interpretations should not be construed as a warranty of the subsurface conditions. G e o E n g i n e e r s 08/21/00 11:12. '8`2535890399 Republic Parking c/o Perteet Engineering, Inc. December 20, 1999 Page 8 PERTEET L 005 If there are any changes in the loads, grades, locations, configurations or type of facilities to be constructed, the conclusions and recommendations presented in this report might not be fully applicable. If such changes are made, we should be given the opportunity to review our conclusions and recommendations and to provide written modification or verification of these recommendations. When the design is finalized, we recommend that we be given the opportunity to review those portions of the specifications and drawings, which relate to geotechnical considerations to see that our recommendations have been interpreted and implemented as intended. There are possible variations in subsurface conditions between the locations of the explorations. Variations in subsurface soil and water conditions may also occur over time. Some contingency for unanticipated conditions should be included in the project budget and schedule. We recommend that sufficient monitoring, testing, and consultation be provided by our firm during construction, to confirm that the conditions encountered are consistent with those indicated by the explorations, to provide recommendations for design changes should the conditions revealed during the work differ from those anticipated, and to evaluate whether or not earthwork and foundation installation activities comply with the contract plans and specifications. 08/21/00 11:12 '8`2535890399 Republic Parking c/o Perteet Engineering, Inc. December 20, 1999 Page 9 PERTEET a 0 0 s Within the limitations of scope, schedule, and budget, our services have been executed in accordance with generally accepted practices in this area at the time the report was prepared. No other conditions, express or implied, should be understood. If there are any questions concerning this report or if we can provide additional services, please call. SWH:RGB:vc Document ID: 7704001R.doc Attachments r bat Yours very truly, GeoEngineers, Inc. Stephen . Helvey Project Manager enneth G. Buss Principal z , _ I- -- w '0 0 N0. U) W J 2, co LL. .w0' J LL.‹; =w _. z �. }-0 z I- U 0; • 0 V) 0 H. W LL1; 0. Z': • LL! 0 ~; z 08/21/00 11:13 $2535890399 PERTEET .C6007 �l. r . R;ve a trVt 11;th Sc Ilk . ape a -. —T /11'1 i���� ■ rt rAll • I� _i = H �Itirh a ��• fillilillin3117141111166- INUMINIV.I.INIMI IL 11111111111AINEWN yerton, • l�la lkW gm ,.•. •� J vagroit# , v,.. ,. TACOMA • Jo ,. _ ifincM2111, 111611\ 9!'" $� '2?` fik 1 — — — 17'111. MAIVIIIIMM il I� L., - tagialatmaris � k--71,1 =, oil iltalw -\vitrtpAil 1.4. Reference: USGS 7.5' topographic quadrangle map "Des Moines, WA." 1949, revised in 1968 and 1973. VICINITY MAP FIGURE 1 z z w 00 cn LU 1- 0 co a =w Z� Z° w U� OH ww 1- 111 —I O~ z 08 /21/00 11:14 'x`2535890399 PERTEET Q008 • A RECYCLE/ i IUPSTER • `�.. — CHAIN UM FENCE IV HIGH P -7 .. L.. 0 _ NOTE ri •47,••••■ Y r, I WALL HEIGHT \j i 1 h ................... �!11 STALLS Jz OR LESS (1002 S1ALL5) ,,� STALLS 3% TO 5% (70 STALLS) l 11'� HEIGHT Of ROCK WALL SHOULD NO EXCEED 4' HEIGHT ALT. 4 1072 SPACES. 70 STALLS ARE ON 5% SLOPE 1002 STALLS ARE ON LESS TITAN 3% SLOPE --r- r .I e 4/ Reference: Bose drawing by Perteet Engineering, Inc., dated 5/99. 1 14- I :1 11rI I. L' t• 1 y ti I NOTE: The locations of all features s are approximate. 08/21/00 11:15 '&2535890399 PERTEET •- APPROPRIATE PROTECOON 77.7. ............ —.„ n '41•CiptiO 9OLLAMIPIEr ..... RE-CODE-REEKI t••• .. OF SWAY .COO -Far.sweiRevraft,stro .. - ."" •-•••..„ •-••••-•• / / • . ..... . ...... • • 0 SPACES ........ ......... •• ..... • ..... •••• 4. •• ...... •• ...... MK-FENCE • •• ....... • • ...... •••• ..... • '7 cb 0 EX P LANATI ( Iv hi shown SITE F FIGURE al 00 9 c iJ . i 08/21/00 11:16 122535890399 • PERTEET 2010 z _Z W. LY 2 00 In 0 J H W 0' LL C22 _ !- Z I— 0 Z I— UJ 0 U(.0 W I— F tL O LLI z U N' _ 0~ z SOIL CLASSIFICATION SYSTEM • • • • MAJOR DIVISIONS GROUP SYMBOL • GROUP NAME COARSE GRAINED SOILS. Mare Thbn 50% Retained. on No. 200 Sieve GRAVEL • More Than SO% of Coarse Fraction Retained on No. 4 Sieve CLEAN GRAVEL GW WELL- GRADED GRAVEL, FINE TO COARSE GRAVEL, GP POORLY - GRADED GRAVEL GRAVEL WITH FINES GM , SILTY GRAVEL GC CLAYEY GRAVEL SAND More Than SO% of Coarse Fraction Passes • No. 4 Sieve CLEAN SAND • SW J WELL- GRADED SANG, FINE TO COARSE SAND !SP POORLY- GRADED SAND SAND WITH FINES SM SILTY SAND . SC CLAYEY SAND FINE GRAINED SOILS More •Then 5096 Passes No. 200 Sieve SILT AND CLAY Liquid Limit Less Than 50 INORGANIC Ml. • SILT CL. . CLAY • ORGANIC OL ., ORGANIC SILT, ORGANIC CLAY SILT AND CLAY Liquid Limit 50 or More INORGANIC MH : SILT OF HIGH PLASTICITY, ELASTIC SILT • CH : CLAY OF HIGH PLASTICITY, FAT CLAY ORGANIC OH ORGANIC CLAY, ORGANIC SILT HIGHLY ORGANIC SOILS PT PEAT NOTES: SOIL MOISTURE MODIFIERS: 1. Field classification is based on visual examination of soil Dry - ' !Absence of moisture, dusty, dry to the touch in genera( accordance with ASTM 02488 -90,. Moist - Damp, but no visible water 2. Soil classification using laboraxory tests is based on ASTM D2487 -90. Wet - Visible free water or saturated, usually soil is obtained from below water table 3. Descriptions of soil density or consistency are based on interpretation of blow count data, visual appearance of • coifs, and /or test data. • AV Geo Engineers •' i SOIL CLASSIFICATION SYSTEM I �- ----- ,. FIGURE 3. z _Z W. LY 2 00 In 0 J H W 0' LL C22 _ !- Z I— 0 Z I— UJ 0 U(.0 W I— F tL O LLI z U N' _ 0~ z 08/21/00 11:16 722535890399 Project Republic Parking PERTEET 1011 Job Number 7704- 001 -00 Location SeaTac LOG OF TEST PIT 01 Date Excavated* 11/30/99 Logged by' DJT Equipment: Trackhoe Surface Elevation(ft): 309 O z N 0. ro c U7 0 is 10— 15— 20—N 0. O o ins p1) SM SP -SM ML Material Description _ -'Forest dui}` = Reddish brown silty fine to coarse sand with organic material (loose, wet) • - Grayish blue line to coarse sand with silt, occasional gravel and a trace of organic material (medium dense, moist to wet) ` Tannish gray and orange streaked silt with sand and occasional gravel (medium stiff moist) /— Bluish gray sandy silt with occasional gravel (stif; moist) (tilt) NNW Test pit completed ai a depth of 12.0 feefon 1180/99. Moderate groundwater seepage observed at a depth of 2.0 feet. Moderate to severe caving observed between 4.0 and 6.0 feet. Disturbed soil "sample obtained at a depth of 7.0 feet. 0 2 ILL m a W me C RI U. Other Tests And Notes Notes: The depths of the test pit logs are based on an average of measurements across the test pit and should be considered accurate to 0.5 foot. W z a_ w 0 0 —5 —10 —15 —20 AMIN LOG OF TEST PIT 02 . Date Excavated: 11/30/99 Logged by DJT Equipment Trackhoe Surface EIevation(ft). 307 a� S a W 0 O N o. n to u a CO a E ro J U a CD 10— 15- 2 0. C7 -1:2 �a NV) 14) ML ML Forest duff C Material Description 0. Other Tests And Notes Mottled orange, gray and tan silt with sand (medium sti$ moist) Mottled orange, gray and tan silt with occasional sand (stiff moist) " Bluish gray sandy silt with occasional fine gravel (still': ^� moist) (till) _ Vray silty irne to coarse sand with occasional gravel and cobbles (dense, moist) (till) MEN Test pit completed at a depth of 13.0 feet on 11/30/99. Slow ground water seepage observed at a depth of 8.0 feet. 14o caving observed. Disturbed soil samples obtained at depths of 5.0 and 11.0 feet. Notes: The depths of the test pit Toys are based on an average of measurements across the test pit and should be considered accurate to 0.5 foot. w u. Z W O 0 —5 —10 —15 —20 Geo Engineers LOG OF TEST PIT z a• =Z �-w U 0 LJLI H CD lL w0 g< SP- 21_ w ZF=— Z0 11.1 uj U O(i)_ F-- wW f- H O v_= 0I z 8 • 0 08/21/00 11:17 '8`2535890399 PERTEET X012 Project Republic Parking Job Number 7704 - 001 -00 Location • SeaTac . LOG OF TEST PIT 03 Date Excavated' ] 1/3()/99 Logged by DJT Equipment: Trackhoe Surface Elevation(ft)' 317 Z se!. . -- o ° y 3 m E CD Graphic Log USCS Group Symbol Material Description y o ° m d °— a o . LFIeld Vane Shear 0s0 Other Tests And Notes N -+ 0 U1 O In C 1 1 1 1 1 1 1 1 1 1 1 Fi) • SM Forest dull. be considered accurate to 0.5 foot. I 1 I 1 1 1 1 1 1 1 1 1 1 ( 1 1 ) 1 1 1 1 1 i l l i l 0 v1 0 N c _ Brown and orange silty fine to mcdium sand with a trace of organic material, occasional gravel and cobbles - (loose, moist to wet) % ML — . Mottled tan and orange silt with sand, occasional gravel = and cobbles (stilt moist) (till) Notes: The depths of the test pit - Test pit completed at a depth of 12.5 feet on 1150/99. - — No ground water seepage observed. , Slight caving observed at a depth of 3.0 feet. : . . - _ Disturbed soil sample obtained at a depth of 6.0 feet. Togs are based on an average of measurements across the test pit and should ' LOG. OF. TEST PIT.04 Date Excavated: 11/30/99 Logged by DJT Equ pment: Trackhoe Surface Elevation(ft): 342 z a. m s d rn Graphic Log 1 USCS Group Symbol Material Description f, 1 Pocket Penelrometar (ronsittl m IS >s Other Tests And Notes i'D Forest duff -• - SM _ mark brown, red and gray silty line coarse sand with occasional gravel and a trace of organic material • _ • - -r —r- ML L M (loose, wet) • r - — ottled tan and orange sandy silt with occasional gravel -. - (stilt moist) (till) - -I L. - • - 15-+ _ _ 20— - • Notes: The depths of the test pit _ Test pit completed at a depth of 13.0 feet on 11/30/99. _ - Minor ground water seepage observed at a depth of 3.0 - feet - No caving observed. - Disturbed soil sample obtained at a depth of 9.0 feet. — — - Togs are based on an average of measurements across the test pit and should be considered accurate to 0.5 foot. —15 _ —20 _ \C� Geo Engineers LOG OF TEST PIT ,�..,r "rn.r.,.... ".. -4.r, .ern. �� n::::. _..�.,��.�,,.,,,F1/�41A�;:.. z . = z 00 to 0 1- W U) u. w0 u_ ? N0 =W z }. �— 0 W f- ui U� 0— ot�- WW 1--p. u. 0 wz U= h- 0 z r 08/21/00 11:17 $`2535890399 PERTEET Lj013 Project Republic Parking Job Number 7704- 001 -00. Location . SeaTac LOG OF TEST PIT 05 Date Excavated' 11/30/99 Logged by DJT Equipment: Trackhoe Surface Elevation(ft)* 332 � w z a. 0.1 n 0 Sample No. o G y a m m E v, Gtaphlc Log USCS Group Symbol Material Description .--- Forest duff Q 1 Moisture Content I m ( %) ` s gr a o tr a a, >- 2 accurate Othe Tests Notes to 0.5 foot. l o t 1 1 1 1 1 1 1 1 1 1 1 1 1 1 . 1 1 1 l 0 O1 O tT DEPTH IN FEET _ _ 5— 10-, tital 11) ML _ Tan sandy silt with occasional gravel medium sti$' --^ - ' moist) (till) - - - 15 -- - - 20-. Notes: The depths of the test pit Test pit completed at a depth of 11.0 feet on 11/30(99. • No ground water seepage observed. - - No caving observed. • . - - Disturbed soil sample obtained at a depth of 6.0 feet. - -- _ Togs are based on an average of measurements across the test pit and should LOG OF TEST PIT 06 Date Excavated: 11/30/99 Logged by DJT Equipment Trackhoe Surface Elevation(ft)• 328 Sample No. • 0 ° o a Other s Graphic Log USCS Group Symbol Material Description Moisture Content (%) Pocket Penetrometer (ronslft ) Field Vane Shear (Psi Tests And Notes O tT O N C l i i t l 1 1 1 1 1 1 1 t t 1 r 1 1 1 1 r 1 r 1 1 ill SP -SM _ - \Forest duff • be considered accurate to 0.5 foot, 1 r r r 1 1 r r r r 1 r r r r 1 r r r r j 1 r r r 1 0 rn 0 (n - Grayish black line to coarse sand with silt and occasional _ _ gravel with organic material (loose, moist to wet) (fill) •• •.1. • SM ML Reddish brown silty fine to coarse sand with occasional _ gravel and a trace of organic material (medium dense, r _ ' moist to wet) (weathered till) / - - otthed tan and orange sandy silt with occasional gravel - - and cobbles (stiff moist) (till) -4 J • Notes: The depths of the test pft _ Test pit completed at a depth of 10.0 feet on 11/30/99. _ Moderate ground water.seepage observed at a depth of _ - 5.0 feet. _ - Severe caving observed at a depth of 4.0 feet. - - , - - -4 - - logs are based on an average of measurements across the test pit and should cj. Geo - EngYneers ... +.... .. .. . _. w. ..; ti�F;'. iC-..: ist ;.,iiA'irufC'�tiki.- liako,�s+n ldU ............._. -.__ LOG OF TEST PIT i=1GUi3E 6 �-�t `• - ";�" . -_+�M� Q z it w 6 v0 CO CI CO W uJ u_ W° g Q =a z� Z I- W W. Uc) ON CI H WW S U u- W .. z UD- P z 08/21/00 11:18 122535890399 PERTEET 0014 Project Republic Parking Job Number • 7704- 001 -00 Location SeaTac LOG OF TEST PCT 07 Date Excavated. 11/30/99 Logged by DJT Equ pment: Trackhoe Surface Elevation(ft)• 334 ° z E c '� ,_ 3 o m CI) Graphic Log USCS Group Symbol Material Description Moisture Content r%) Pocket Penetrometer (ronsI1t a a Other Tests And Notes 0 ur O cn C • 1 , , , , I , , , , I i r „ I , , , , I , , , 1 1 l'll SM _ Forest dull a be considered accurate • to 0,5_foot. 1 11111111111i 1 r rtirr,� o en o 01 _ Dark brown silty fine to coarse sand with occasional gravel and organic material (loose, moist to wet) SZ _ - \ (weathered till) 1 - ..; SM Grayish brown Silty-fine to coarse sand with gravel and - - occasional cobbles (very dense, moist) (till) Notes: The depths of the test pit _ Test pit completed at a depth of 8.0 feet on 11/30/99. 4. Severe ground water seepage observed at a depth of 3.0 _ ■.. feet. _ - Minor caving observed at a depth of 4.0 feet_ ....... ... - - - logs are based on an average of measurements across the test pit and should LOG OF TEST PIT 08 Loged by DJT Date Excavated: 11/30/99 ' Equipment: Trackhoe . Surface Elevation(ft)• 348 W an E Sample No. Blows per foot USCS Group Symbol Material Description Moisture Content ('%) Pocket Penetrometer (Tonstit ) Red Vane Shear (Psi) Other Tests And Notes DEPTH IN FEET 0 _ 1.1/ Forest duff _ - - -10 _ _ - -15 -20 - ,__ SM ' e.. rs • rown s ty t e to coarse san• w occasion • _ CONCRETE - gravel (loose, moist) (file SZ. - - .' SM Concrete slab _ g- - - 1 •• • SM - Reddish brown silty fine to coarse sand with occasional -� - gravel and a trace of organic material (loose, moist) - (weathered till) - - Gray silty fine to coarse sand with gravel and occasional % - �\ cobbles (very dense, moist) (till) i - 10 - - - 15- 20- - L- . Notes: The depths of the test pit f est pit completed at a depth of 7.5 feet on 11/30/99, '- - Minor ground water seepage observed at a depth of 3.0 _ - feet . - _ No caving observed. _ _ Disturbed soil sample obtained at a depth of 5.0 feet. - - -, - .- J logs are based on an average'of measurements across the test pit and should be considered accurate to 0.5 foot. -- l` Geo - J Engineers LOG OF TEST PIT FIGURE 7.,. 08/21/00 11:19 '8`2535890399 PERTEET IN015 Project • Republic Parking Job Number • � 7704 -001 -00 Location SeaTac LOG OF TEST PIT 09 Date Excavated' 11/30/99 Logged by DJT Equ pment• Trackhoe Surface Elevation(ft)• 353 ►- w iii T E c Sample No. Blows per foot a, TO to Graphic Log I USCS Group Symbol • Material Description Moisture Content ( %) Pocket Penet ometer (ronsllt) R N 9 . Other Tests And Notes 0 - _ - - 10-- 15— 20— k g a) SM - Forest du ±1 be considered accurate to 0.5 foot. IO Ur O UI ` e • • is • rown sr ty ne to coarse san • wit occasions M cravel loose. moist) - lvu, - Mottled sandy silt with occasional gravel (soft to medium - ---„ stiff moist) (till) - - Gray silty fine to coarse sand with occasional gravel - _ (dense, moist) (till) — SM Notes: The depths of the test pit • Test pit completed at a depth of 9.0 feet on.1 I/30/99: No ground water seepage observed. .. . .. .. . No caving observed.; — — — — Togs are based on an average of measurements across the test pit and should • LOG OF TEST PIT 10 Date Excavated: 11/30/99 Logged by DJT . Equipment: Trackhoe Surface Elevation(ft)' 330 DEPTH IN FEET 1 z pi a• y'V 8 ,.. a. m i Graphic Log HSCS Group Symbol Material Description Moisture Content ( %) E _- a_ n. Field Vane Shear (use Other Tests And Notes 1 DEPTH IN FEET '":M: s orest du I _ SM Gray silty fine to coarse sand with occasionafgravel and ,SZ - —\ SM - cobbles Smddium dense, moist) (weathered till) /— - _ Gray silty Erne to coarse sand with occasional gravel and - - cobbles (very dense, moist) (till) — 10 _ _ _ 15— 20— Notes: The depths of the test pit _ Test pit completed at a depth of 7.0 feet on 11/30/99. Slow ground water seepage observed at a depth of 2.0 _ feet. - No caving observed. - — — -- — logs are based on an average of measurements across the test pit and should be considered accurate to 0.5 foot. —10 - —15 —20 Geo .— Engineers . _... __..._.. __ _. LOG OF TEST PIT FIGURE 8 .w e., ..� r... rt °V,?e,,,,.. ,4:c ,,,,,,,,,,,,: .,,,V :'WVY',5 ^et:w.W.+rreo z =z rw 6 vo a= w0 2 u-? �a w Z= o F-- Z III W U� O N, 0t- wW 2 1- O Z w U= O z 08/21/00 11:19 $2535890399 PERTEET CJ 016 • 1 Project Republic Parking Job Number 7704 - 001 -00 Location SeaTac Date Excavated: Equipment: LOG 11/30/99 OF TEST PIT 11 Logged by DJT Trackhoe Surface Elevation (ft)' 342 ° a. E ny a �,� USCS Group Symbol Material Description y a o �L a s t Other Tests And Notes N O 111 O N 0 111111t 1 1, 1 1 1, 1 1 1 i, 1 1 i 1 1 i 1 Notes: The r 1.1) SM _ Forest dull - - _ - — - - — — be considered accurate to 0.5 foot. 1 11111111111i1.1iiiiii1iiiii O N O _ Reddish brown silty mine to coarse sand with occasional gavel and trace of organic material (loose, moist) (weathered till) .. l` SP -SM SM — tithed orange and brown fine to medium sand with silt i� _ (medium dense. moist to wet) / 2 y silty fine to coarse sand with occasional gravel and cobbles (dense, moist) (till) depths of the test pit — Test pit completed at a depth of 9.0 feet on 11/30/99. Moderate ground water seepage observed at 4.0 feet. No caving observed. — . logs are based on an average of measurements across the test pit and should • • • • r •'(ks `i'"_ Engineers . LOG OF TEST PIT FIGURE 9 • f §1 d a 08/21/00 11:21 '8'2535890399 Project Republic Parking PERTEET i ) 001 Job Number 7704 -001 -00 Location SeaTac Date Excavated: Equipment 11/30/99 Trackhoe 1— ia 15 isi rn LL. z ° ai Z d a a 0 1 E a m to n. 1a 30 fn .� o co m 5 0 NMI 10— 2D— a. oc). va 1•lJ SM SP -SM SM LOG OF TEST PIT 11 Logged by Surface Elevation(ft)- Material Description Forest dull' _ Reddish brown silty fine to coarse sand with occasional gravel and trace of organic material (loose, moist) (weathered till) Mottled orange and brown fine to medium sand with silt (medium dense. moist to wet) J4 y silty fine to coarse sand with occasional gravel and cobbles (dense, moist) (till) IMO Test pit completed at a dcpth of 9.0 feet on 11/30/99. Moderate around water seepage observed at 4.0 feet. No caving observed. DJT 342 0 En Other Tests . And Notes w O Notes: The depths of the test pit logs are based on an average of measurements across the test pit and should be considered accurate to 0.5 foot. �0 •-5 —10 x-15 —20 Engineers LOG OF TEST PIT FIGURE 9 Z Z 1'- 6 00 to 0 U) W NW W O, 2 Q co =d F— W Z I— O Z 0 co W � Q O— 0 I— W tjJ. � O .. Z W U= 0 H. z i977VcNv -2--0) ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) B- TWELVE ASSOCIATES, INC. 1103 West Meeker Street, Suite C Kent, Washington 98032 (253) 859 -0515 / Project Name / #: -5./2 v Date: 9- 7 -00 Investigator: &' St ‘. ° � i Data Point: Jurisdiction: Tvk wil ti State: i---/3-- Atypical Analysis: Problem Area: VEGETATION Dominant plant species Stratum Indicator Coverage % 1. PA /,�/3 „v✓ /NaCZ t AA F4-c t-./ 2. ' /•es h3 74.4.-v p1 9-c 3 . 7Z4, E, �s a4s ,-a %.,— -5 F79'C (/ 4. • 5. 6. 7. 8. 9. 10. % of species OBL, FACW and /or FAC: Hydrophytic vegetation criteria met C es No Marginal Comments: SOILS Mapped Soil Series: On Hydric Soils List ?: Yes No Drainage Class: Depth(0 in) Matrix color Redox concentration color Textur • S in. X4, 1/2 ,3/3 — )-r-, ,., s,../�t/� /G,..., /F in. 2, S `/ �'/ f� ('.Mh,,.J /h,c.01 p./■f(� /=-/!' o�.��[. 1./ I / in. m. Organic soil , Histic epipedon_, Hydrogen sulfide_, gleyed_, redox concentrations_, redox depletions_, pore linings_, iron concretions_, manganese concretions_, organic matter in surface horizon (sandy soil)_, organic streaking (sandy soils)_, organic pan (sandy soil)_. , Hydric soil criteria met: Yes NO)Basis: .1-' a / ,-- g ,1i• 4._ Ic.. Comments: HYDROLOGY Recorded data_, inundation , saturation ,watermarks , drift lines , sediment deposits , drainage patterns . . Wetland hydrology criteria met: Yes No Basis: i4.'-.0 2.-1, ' , , Comments: SUMMARY OF CRITERIA Soil Temp. at 19.7" dep • Growing Season? /N Hydrophytic vegetation: 1 Hydric soils: Y,tI1) We _. d hydrology: — Data point meets the criteria of a jurisdictional wetland ?: Yes q. • • 7-7-,1c,../ z .(zJ ... _........ .»..af„...:....Re�w+ <.w..aa.x.� n! strs5sWr.: W47035a0,1M ^,1 �y'?.,°,'?'_��r� -... z =z 1— w try JU 00 ND cn W. J � u� wo 2� u_ ?. no 1— w z� 1— O Z 1- w W U0 OD- o ww 1— H Z U= O~ z ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) B- TWELVE ASSOCIATES, INC. 1103 West Meeker Street, Suite C Kent, Washington 98032 (253) 859-0515 Project Name / #: S2 v Date: 1— 9- - "fv Investigator: _►/ r`"'ej Data Point: -� � Jurisdiction: ('. '747 or TAk..- . % . State: t„, if- Atypical Analysis: Problem Area: VEGETATION Dominant plant species Stratum Indicator Coverage % 1. /174,24,..5. )04 /".AO.? , '�� T /-7-•49-<._ /C79- C �_-, 2. 744 /.3 .v- t....-64 '-. e ti. / 47 3. ,0 ,.-4-s ays7.,/,,..— s f '? CL-1 4. 5. 6. 7. 8. 9. 10. % of species OBL, FACW and /or FAC: 6 Hydrophytic vegetation criteria me No Marginal Comments: SOILS Mapped Soil Series: On Hydric Soils List ?: Yes No Drainage Class: Depth(0 in) Mat4x color Redox conpent /ration color Texture /'g' in. M, �e ...,.-,......„//, �/4� M, 74 t ~VC' 4Oe►' e61 1 f.• G AS cpet. �6riS /b in. 2. 5 Y 47`z / c...,r,..r�. -..� dv -4.� / ! ca•--sc id/ / • in. in. Organic soil_, Histic epipedon_, Hydrogen sulfide_, gleyed_, redox concentrations_, redox depletions_, pore linings_, iron concretions_, manganese concretions_, organic matter in surface horizon (sandy soil)_, organic streaking (sandy soils)_, organic pan (sandy soil)_. Hydric soil criteria met: Ye Basis: /" 4.--0,41.-.4,4 p' ,,,,,'/'ti....- tre.„ /0 '� Comments: HYDROLOGY Recorded data_, inundation , saturation ,watermarks , drift lines , sediment deposits , drainage patterns . Wetland hydrology criteria met: Yesii Basis: ' .:1 e'.. J" Comments: " -r 0.,., r- Tt�o/ 7`..-.c ,'-7 .�- �p SUMMARY OF CRITERIA Soil Temp. at 19.7" depth: Growin Season ?:CPN Hydrophytic vegetation, N Hydric soils: Y Wetland hydrology: Y /Its j Data point meets the criteria of a jurisdictional wetland ?: Yes ... _........ .»..af„...:....Re�w+ <.w..aa.x.� n! strs5sWr.: W47035a0,1M ^,1 �y'?.,°,'?'_��r� -... z =z 1— w try JU 00 ND cn W. J � u� wo 2� u_ ?. no 1— w z� 1— O Z 1- w W U0 OD- o ww 1— H Z U= O~ z J 1 /9 ?77C/V2 - -/] ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) Project Name / #: .5 2 0 B- TWELVE ASSOCIATES, INC. 1103 West Meeker Street, Suite C Kent, Washington 98032 (253) 859 -0515 Date: i' 7"'64' Jurisdiction: C, , of 77, >' . State: kvn Atypical Analysis: Problem Area: Investigator: 5,0/ Data Point: -P VEGETATION Dominant plant species Stratum Indicator Coverage % 1. Par v L,s 12A ANr.,f! -7C / FA-c 2. P /'`,S FA-C L✓ 3. m•lef t% S Pit C 4. 5. 6. 7. 8. 9. 10. % of species OBL, FACW and /or FAC: 6, Hydrophytic vegetation criteria metCYe to Marginal Comments: Mapped Soil Series: Depth (0 in) /bin. in. in. in. Matrix color ,i Hr/2 3/2 SOILS On Hydric Soils List ?: Yes No Drainage Class: Redox concentration color Texture 5 5 mid, 4., Organic soil., Histic epipedon_, Hydrogen suflde_ iron concretions_, manganese concretions_, organic organic pan (sandy soil)_. Hydric soil criteria met: Yes Basis: No Comments: , gleyed_, redox concentrations_, redox depletions_, pore linings_, matter in surface horizon (sandy soil)__, organic streaking (sandy soils)_, HYDROLOGY Recorded data_, inundation , saturation , watennarks , drift lines sediment deposits drainage patterns Wetland hydrology criteria met: Yes Basis: tea' Comments: SUMMARY OF CRITERIA Soil Temp. at 19.7" dep . : Growin Season? N Hydrophytic vegetatio Hydric soils: Y,(y We id hydrology: Y Data point meets the criteria of a jurisdictional wetland ?: Yes r7ZCwZ- /¢7 ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) Project Name / #: S 2 Jurisdiction: 1 - �) t B- TWELVE ASSOCIATES, INC. 1103 West Meeker Street, Suite C Kent, Washington 98032 (253) 859-0515 Date: y'" 9-"a6 Investigator: El State: G✓R Atypical Analysis: Data Point: ' (er Problem Area: VEGETATION Dominant Rlant species Stratum Indicator Coverage % 2. 3. 4. 5. 6. 7. 8. 9. 10. % of species OBL, FACW and /or FAC: /ad Hydrophytic vegetation criteria mew es o Marginal Comments: SOILS Mapped Soil Series: On Hydric Soils List ?: Yes No Drainage Class: Depth(0 in) Matrix color Redox concentration color Texture /&in. / CNA- ) /.4 ,e%... may£ , F,�.+t-•- grN e`4 ,.-�. in. / in. in. Organic soil__, Histic epipedon_, Hydrogen sulfide_, gleyed , redox concentrations_, redox depletions_, pore linings_, iron concretions_, manganese concretions_, organic matter in surface horizon (sandy soil)_, organic streaking (sandy soils)_, organic pan (sandy soil)_. / Hydric soil criteria met: Yes Basis: /''0 1 � / • e r f Comments: HYDROLOGY Recorded data_, inundation , saturation ,watermarks , drift lines ' , sediment deposits drainage patterns . Wetland hydrology criteria met: Yes Basis: /✓o , %---c-0 t "e 4' r Comments: r1 ' di r'.-,-... - ,- -e s SUMMARY OF CRITERIA Soil Temp. at 19.7" depth: Growin• Season ?: YIN Hydrophytic vegetation:C1 Hydric 'soils: Ib Wetland hydrology: ' 1N Data point meets the criteria of a jurisdictional wetland ?: Ye j ,477c/-/. 0 ROUTINE WETLAND DETERMINATION DATA FORM (Washington State Wetlands Identification & Delineation Manual, 1997) B- TWELVE ASSOCIATES, INC. 1103 West Meeker Street, Suite C Kent, Washington 98032 (253) 859 -0515 W e f' A Project Name / #: S 0 Date: / / -/ vU Investigator: o U Data Point: pe2±4(- Jurisdiction: C.7,1 ..F 7-1-)e,.... <_ State: L,✓.4 Atypical Analysis: ,ve Problem Area: "I-d VEGETATION Dominant plant species Stratum Indicator Coverage % 1. F4.5. 44'13 cr- -- A w u � /i tom/ ,VU 2. 3. 4. 5. 6. 7. 8. 9. 10. % of species OBL, FACW and /or FAC: 2 °'' Hydrophytic vegetation criteria met No Marginal Comments: SOILS Mapped Soil Series: On Hydric Soils List ?: Yes No Drainage Class: Depth(0 in) Matrix color Redox concentration color Texture 13 in. id L// - Z/1 Ca.,,,..,,., -� 'rci —01--1" s-. ; 4... / 0 --N III. /0/Z z// — /va. --:,T s-,-,-......c./ in. in. Organic soil , Histic epipedon_, Hydrogen sulfide_, gleyed , redox concentrations _2, redox depletions_, pore linings_, iron concretions_, manganese concretions_, organic matter in surface horizon (sandy soil)_, organic streaking (sandy soils)_, organic pan (sandy soil) . Hydric soil criteria met: Leg4 No Basis: c i.,-o.-. c d-4 / J ,-?,./.0 X. AC 74-'''''.e..---, Comments: ,, HYDROLOGY Recorded data_, inundation , saturation _G ,watermarks , drift lines , sediment deposits , drainage patterns . Wetland hydrology criteria met: 0 No Basis: ..-5-",11-4- '-- "T..) �-- ;11 -= 12 -- s.4--------c, Comments: SUMMARY OF CRITERIA Soil Temp. at 19.7" dep Grow' g Season?:O N Hydrophytic vegetation.{ N Hydric soils: Y N Wetland hydrology:Q/N Data point meets the criteria of a jurisdictional wetland ?: No July 17, 1998 Ms, Rebecca Riesen SRO 606 106th N.E. Bellevue, WA 98004 Re: Wetland delineation of SRO property in Tukwila, Washington - Dear Ms Riesen: r7 /1 /-/• 4 SHAPIRO M A73OCIATI7, INC. At your request, Shapiro and Associates, Inc, (SHAPIRO) visited the SRO property in Tukwila, King County, Washington on July 8, 1998. The purpose of the visit was to identify and delineate wetland boundaries. The site is south of SR .518 on the east side of Pacific Highway South. The site is bounded by South 158th Street to the west and north, Military Road S. to the west, and by residential homes and a church on the east and south (Township 23N, Range•4E, Section 22). Methods Wetlands on the site were identified and their boundaries estimated using methods described in the U.S. Army Corps • of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987) and the Washington Stare Wetlands Identification and Delineation Manual (Washington State Dept. of-Ecology, 1997). Wetland boundaries were marked in sequential order with bright orange flagging labeled "WETLAND BOUNDARY." Sample, plots were established at the site. Soil was characterized by digging a hole to a depth of at least 18 inches below the ground surface. Soil layers, or • horizons, were described with regard to the soiI texture, color, presence or absence of redoximorphic features (such as mottling. or gley color formation), and organic matter • content. All herbaceous plant species within a 5 -foot radios of the soil pit were identified, and the percent of the ground each covered was estimated. All shrubs, saplings, and trees within a 30 -foot radius of the soil pit also were identified and their cover. estimated. Data collected at each of these sample plots were recorded; data forms are attached. Results, A review of existing literature, including the National Wetland Inventory, Des Moines, Washington Quadrangle (U.S. Fish and Wildlife Service, 1987), and the King 'County Wetlands Inventory (King County Environmental Division, 1990), indicates that the site was not identified• as a wetland at the time.of the surveys. The King County Wetlands Inventory does not map wetlands less than 1 acre in size. The site is not included within the study area of the Sail Survey of King County Area, Washington (United States . Department of Agric.ulture: Soil Conservation Service, 1973). The investigated parcel is approximately 3 acres in area and is enclosed on the • north and west by roadways. Residential homes and a church establish the eastern and southern 20'd L220�ZS90Z OOSSH '3 HOHSS2lIH Wd z a• w JU Uo 0 LIJ _I t�- wo La =a i--w z 1- 0 zI- w uj 2o U o � oE- =• U r• d w ..z U= o� z Page 2 of 3 July 17, 1998 border of the site. The vegetative habitats at the site include forested, scrub - shrub, and grassland. Non - native invasive plants are prevalent throughout the site. The topography is relatively level while the ground surface is typically uneven. The soil is compacted material that is likely fill material. Conditions at the site indicate areas of the parcel have been disturbed. Garbage and debris occur throughout the site, Access within the site was limited to grass patches and trails through blackberry brambles. A probable wetland was identified at the southwest area of the site. Based on the City of Tukwila Sensitive Areas Ordinance (City of Tukwila, 1991) this area could be classified as a Type 3 palustrine scrub/shrub wetland. This wetland was designated Wetland A and flagged from Al to A4 in a continuous loop. Wetland A is approximately 180 square feet in area (Figure 1). An evaluation of the wetland was conducted using the Wetland Rating Field Form for the City of Tukwila (Jones and Stokes, 1990). This method rated the delineated wetland in the lowest category with a point total of 17 (See attached Wetland Rating Field Form). Sample Plot One was established approximately 200 feet south of the trail entrance on South 158th Street. Creeping buttercup (Ranunculus repens) and ,Himalayan blackberry (Rubus discolor) are the dominant vegetation. Scouler willow (Salix scouleriana), red alder (Alnus rubra), Robert geranium (Geranium robertianum), and Orchard grass (Dactyl's glomerata) also occur. The calculated percent cover of FAC, FACW, or OBL species. is 50 percent whichis at the cut off between classifying the vegetation community as hydrophytic or upland. There is a prevalence of invasive species (classified FAC, FACW, and FACU) that make the classification of hydrophytic vegetation questionable. The soils are brown to light brownish gray (10YR 4/3 to 10YR 6/2) gravely sandy loams. Strong brown mottles (7.5YR 5/6) occur below 8 inches. The soil is hard pan at 11 inches. The hydrophytic vegetation and hydric soils parameters are met at Sampling Plot 1, but chroma of 2 with mottles is the only indicator of wetland hydrology. Surface soil was dry during the field visit. Sample Plot Two was established in an upland area approximately 50 feet north of Sample Plot one. Several attempts to dig below four inches were necessary due to the fill like conditions of soil at the site. Himalayan blackberry is the dominant vegetation. Scouler willow, black cottonwood (Populus balsimifera var. trichocarpa), Scot's broom (Cytisus scoparius), Orchard grass, bentgrass (Agrostis sp.), and common yarrow (Achillea millefolium) also occur. The soils are brown (IOYR 4/3) gravely sandy loam to nine inches with no mottles. Hard pan occurs below nine inches. No hydrological indicators were observed. Hydric vegetation is the only wetland parameter met at Sample Plot Two. Conclusions SHAPIRO delineated one probable wetland on the SRO Site on July 8, 1998. The area appears to Meet the minimum criteria to be considered a jurisdictional wetland by the U.S. Army Corps of Engineers: the presence of wetland plants, hydric soil, and indications of wetland hydrology at or near the ground surface. Any development activities that may 30 S S' '3 I-13 kj.a,S.213 .W.d.nr..S S:= Zzt. ,0 0.0 Z. -,9 Z,.,;,J..OA Page 3 of 3 July 17, 1998 affect this wetland likely would not require authorization from the U.S. Army Corps of Engineers because it is isolated and smaller than 1/3 acre. The City of Tukwila has regulations that pertain to the altering of wetlands, but the Director. Dept. of Community Development has the discretion to allow exceptions to the City's wetland mitigation requirements. The compensatory mitigation standards can be waived for isolated wetland systems that are less than 1,000 square feet and are of low value according to the rating methodology used in the City's Water Resource Rating and Buffer Study. This wetland is isolated, much smaller than the 1,000 square foot threshold, and would be classified as low value (17 total points using the Wetland Rating Field Form). A strong justification could be made for an exception on this wetland. Thank you for the opportunity to prepare this material for you. If you require additional assistance on this or any other project, please do not hesitate to call me or Mark Bou16. References City of Tukwila, 1991. City of Tukwila Sensitive Areas Ordinance. City of Tukwila, Washington, Ordinance No. 1599. Environmental Laboratory, 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y- 87-1, U.S. Army Engineers Waterways Experiment Station, Vicksburg, Mississippi. Jones and Stokes, 1990. Water Resource Rating and Buffer Recominendation. King County Environmental Division, 1990. King County Wetland Inventory. U.S. Department of Agriculture, Soil Conservation Service, 1973. Soil Survey of King County Area, Washington. . U.S. Fish and Wildlife Service, 1987. National Wetland Inventory, Des Moines, Washington, Quadrangle. Washington State Dept. of Ecology, 1997. Washington State Wetlands Identification and Delineation Manual. Washington State Dept. of Ecology, Publication #96 -94. Sincerely, SHAPIRO AND ASSOCIATES, INC. n vin Kelly Douglas 'Ecologist L 0' d Lc.9-9i7ZG90Z. O O S S H 'P w. J,«nti sans 1 • 447.411' o • 1a'sa'ir L • 34.7.37' NU' 38' 1110 limo. Mp•L'11', 1113.44• SHAPIRO FIGURE 1 GENERAL WETLAND MAP TUKMLA & AlIOCIATIC INC. falionislffmalikkeimegmfonftwarkFtWZ.Q.9 z: 1 3099 'S HOtias z H Z. re w QQ� .JU 00: .ND • W =` N Ur w 2 Q. co D. I 0 w I— O zi-. U� 0 -. w 2 LI. H. O Z' w — _.. 0 Z VEGETATION UNIT SAMPLING PROCEDURE Prejuct /Slto: Tukwila Sanative Areas, 6971084.2 Sample Plot 4: 1 Field Investlgator(o): CD, RP Date: 7/9/98 Indloatcr % Arai Cover Sp Code Herbs & Bryophytes Statue" Cover Class Mldpolnt Rank rare Ranunculus repass FACW . 40 4 38.0 1 giro Geranium robertlanum FACU" 20 3 20.5 2 dagl Dactylis glomerate FACU 15 2 10.5 Sum of Midpoints: Dominance Threshold: 69.0 34.5 Indicator Sp Code Shrubs status' - rudi Rubus discolor FACU saec Salix scouloriana FAC alto Anus cobra FAC armereemememeereeme Sp Code Saplings % Areal Cover Covet Class Mldpolnt Rank 60 6 63.0 1 30 4 38.0 2 10 2 10.5 Sum of Midpoints: 111.5 Dominance Threshold: 55.8 Indicator y. Anal Cava Status"' Cover Class Mldpolnt Rank Sum of Midpoints: Dominance Threshold: Sp Code Trees Indicator % Areal Cover Status"' Cover Class Midpoint Rank Sum of Midpoints: Dominance Threshold: % of Dominants that are 0134, FACW, and/Or FAC: Comments: disturbed site, rudi dominant throughout 60% Hydrophytlo Vegetation? Yee te dolonnks domino% IMM nIW D,r nl_oirds. Ten run cot l porr% I way " amass dal do nil woo on O. Noland W (Flood M) mry have bin u$lprod on Wawa �waalaOOOl�losimilar i I l Iambs any ohms r MOM i!o"K OI O o . A WNM Maid d1 field Wome :m a and holm: Nonunion Iron Ito Muslin. IIY�arats=IiMIMtlwr1On ueullk 4,22017ZS90Z OOSSH 'S HOHSSMadd I H Wd SS:ZT 0002- 9Z -1OO z w L1] U. UO: ❑' W I J 1- Qu ujO. J u_ I-ui z� I— O. z I— uj t) O - w w. • U LLO .. z UD 1= Ft: z SOILS, HYDROLOGY & SUMMARY Project Number: 6971064.2 Project /Site: Tukwila Sensativo Areas Field Investigator(s): CD, RP SOILS SCS Mapping Unit Feld Identification: No le soil on hydrlc soils list? Date: 7/8/98 Gample Plot #: 1 le soil a histoaol? No Histic epipedon present? No Is soil mottled? Yes Is soli gleyed? 'No Horizon A A Depth 0 -8" 8 " -11" >11" Texture gravelly sandy loam gravelly sandy loam hard pan Matrix Mottle Color Color Occurronca Qiey Organic Content None low None low of Mottles Color 10YR 4/3 None None 10YR 6/2 7.6YR 6/6. c, m Landform/Topography: disturbed site, garbage, invasive woods, most area unable to dig below 4" due to fill characteristics Comments: Hydric Salle? Yes Basis: chrome, mottles HYDROLOGY Is ground surface Inundated? No Is soil saturated? No Depth to free - standing water In pit None ❑ Yes ® No - Oxidized root zones ❑ Yes ® No -Water marks O Yes ® No -Drift Imes D Yes ® No - Water -bome sediment deposits Comments: No evidence of hydrology Surface water depth: None Depth to saturation: None ❑ Yee ® No - Water - stained leaves ❑ Yes DI No - Surface scoured areas p Yes ® No - Wetland drainage pattems D Yes ® No - Morphological plant adaptations Wetland Hydrology? No Beale: no hydrologic indicators SUMMARY Do normal environmental conditions exist at the plant community? No Has the vegetation, soils, and/or hydrology been significantly disturbed? Yes Disturbed area? Yes Basis: invasive species prevelant, soli has fill characteristics Problem area? No Beale: No evidence Comments: garbage throughout site, glass and metal located 4 Inches deep In soli pits, most of area unable to dig below 4" due to till characteristics Is the hydrophytic vegetation criterion met? Yes Is the hydrlc soil criterion met? Yes Is the wetland hydrology criterion met? No Is the vegetation unit or plot wetland? Yes Rationale for jurisdictional decision: Based on soli and vegetation, wetland conditions are marginal, parcelc 200 square feet St'd L220t'ZS90Z OOSSt! '8 HOdas ddre Lid 92: Zt 000Z- 9Z -1OO m mtuatmegaiww'w wus Wog VEGETATION UNIT SAMPLING PROCEDURE Prole ot /Sits: Tukwila Sensative Areas, 6871064.2 Field Inveatlgator(e): CD, RP Semple Plot #: 2 Date: 7/9/98 Indicator % Areal Cover Sp Coda Herbs & Bryophytes statue" Cover Class Midpoint Ronk agsp Agrostis sp, FAC 10 2 10.6 2 aomi Aohillea millalolium FACU 5 1 3.0 dog! Decrylis g/omerata FACU 20 3 20.6 1 Z 1 w re u6= JU UO: U) 0 W= J H Sum of Midpoints: 34,0 w O Dominanoe Threshold: 17.0 2 La. d: =uI H = Zl. O. Z I— p' Sum of Midpoints: 69,0 0 Dominance Threshold: 34.5 Q i- ut = U' 1- r. O w =, O 1- Z Indicator % Areal Cover Sp Code Shrubs Statue" Cover Claw Midpoint Rank rudf Rubus discolor FACU 50 4 38.0 1 sass Salix soouleriane FAC 20 3 ' 20.5 a cyec Gytiaue scoparius UPI." • 10 2 10.5 Sp Code Saplings Indicator % Areal Cover Statue" Cover Class Mldpolnt Rank Sum of Midpoints: Dominance Threshold: Sp Code Trees Indicator % Areal Cover Status" Cover Claso Mid • olnt Rank potr Populus trlchocarpa FAC 10 • Sum of Midpoints: Dominance Threshold: 2 % of Dominants that are OBN., FACW, and/or FAC; Hydrophytlo Vegetation? Comments: disturbed elte, rudl dominant, soots broom present TO dWmtbe danYMnta MM feM mem M stldpoisa. lbw cam midpokes In order rA QQM, M took lot el ewes laserwIOe friadd) Y krineasteryssesisi Al =icerebAhp Is els arsuissis eel plus wry Went haute WA of theme veto sts marled set sn sera 10,5 10.5 5,3 1 60% Yes rtatu*us based celled o u�m,s end Waal marinate o s aeon. "�"id �n Mgr -J LcSOt�ZS90Z aOSSti '8 HotiSS2ta ddIti W.£: Zyy009Z { SOILS, HYDROLOGY & SUMMARY Project Number: 69710134.2 Project /Site: Tukwila Sanative Area Field Investlgstor(c): CD, RP SOILS SOS Mapping Unit•. Field Identification: No Is soll on hydric soils list? Date: 7/8/98 Sample Plot #: 2 la soli a histosol? No Histic epipedon present? No is soil mottled? No Is soil gieyed? No Horizon Horizon Depth Texture A 0.9' gravelly sandy loam A >9" hard pan Matrix Color Mottle Color Occurrence ' of Mottles aley Color Organic Content 10YR 4/3 Nono None None low Landform/Topography: disturbed site, garbage, Invasive weeds, most area unable to dig below 4" due to fill characteristics Comments: Hydrlc Soils? No Basis: high ohroma, no mottles HYDROLOGY la ground surface Inundated? No ., Is soil saturated? No Depth to free - standing water in pit: None (� Yes ® No -Oxidized root zones ❑ Yes 21 No -Water marks ❑ Yee ® No -Drift lines ❑ Yee IN No - Water -borne sediment deposits Comments: No evidence of hydrology Wetland Hydrology? No Surface water depth: Nono Depth to saturation: None ❑ Yea ® No - Water - stained leaves ❑ Yes ® No - Surface scoured areas ❑ Yes ® No - Wetland drainage patterns ❑ Yes ® No - Morphological plant adaptations Basle: no hydrologic indicators SUMMARY Do normal environmental conditions exist at the plant community? No Has the vegetation, soils, and/or hydrology been signiiioantly disturbed? Yes Disturbed area? Yea Basis; Invasive species prevalent, loll has fill characterlstics Problem area? No Basle: No evidence Comments: garbage throughout site, glass and metal located 4 inches deep In soil pits, most of area unable to dig below 4" due to MI characteristics Is the hydrophytlo vegetation criterion met? Yes le the hydric soil criterion met? No le the wetland hydrology criterion mot? No Is the vegetation unit or plot wetland? No Rationale for jurisdictional decision: SoIl and hydrology parameters not met Z££.O bZS90Z c 0 S S w" wd is z41.� eeez— •9Z, -1.J0y Q Figure 2. WETLAND RATING FOLD FORM FOR THE CITY OF TUKWILA Wetland it Date 1 ' g Food Chain Support 75 -100% of WL covered w/ emergent vegetation Score= 3 50 -75% of WL covered w/ cincrgcnt vegetation Score = 2 25 -50% of WL covered ernergcn vegetation Score = l� Score 1- Nutrient Transport WL associated w/ perennial watercourse Score = 3 WL associated w/ ephemeral watercourse Score = 2 Isolated WL (closed depression) Score = i Score 1 Buffer (barrier function) (consider area wlin SO feet of wetand edge) Dense forest or shrub = 75 -100% Score = 3 Dense forest or shrub � Dense forest or shrub = 50 -75% Score <`J = 25-50% Score =1 Score Z4 Habitat Diversity: 3 or more WL classes, one of which is Open Water Score =4 1 WL class Scone <) Size ofvetland: >7 arms Scott= 5 >5 to 7 acres Score =4 3 WL classes w/ no Open Water or . 2 WL classes w/ Open Water Score = 3 >3 to 5 acres Score = 3 0 to l age, Score ° l) For total score, multiply sub -score for diversity by sub -score for size. 2 WL classes w /out Open Water Score = 2 Sub -Score 1 1 to 3 acres Score = 2 Sub -Score Total Score I z H Z • w UO (I) W LU w O get • a � w Z= I- -O Z~ w. ✓ 0 O - O H_ Ww I— U LI_O w z. P _ O H. z Habitat (cont.) Pcsccntagc of Forested Wetland: 75- 100% of WL is forested Score = 4 50- 75% of WL is forested Score = 3 25 -50% of WL is forested Score = 2 Score Huffer Habitat (consider area within 100 feet of wetland edge) Total of all relevant stores (check those that apply): A. Diverse forest or shrub =75- 100% score = 4 = 50-75% score = 25 -50% score =2 = 10 -25% score = 1 D. Open forest or grass with occ. shrub = 75 -100% 50 -75% = 25 -50% score = 3 score = 2 score =.1 C. Pasture/herbaceous = 75 -100% score = 2 = 50 -75% score = 1 Score $unounding land use: (outside of WI. buffer, wfin 100' feat. Multiply percentage of area a- forestal b. shrub tn unmaintacd grassland Score = 3 Score 2 d. urban: residential /maintained lawns c, urban: industrial/commercial Score = -1 Score = -2 a and or b total 90% a and or b toia150 -90% Score = 3 Score = 2 in each category.) c. active agriculture/Foss Score =1 Score 1 a and or b total 25- 50% Score =1 Score Smigue tealures (in wetland). (check arose appropriate) raptor ncss structures Snags >= 10 inches dbh, >20 feet tall or beaver or muskrat lodges Score = 3 for each Score = 2 if present Snags <10 inches dbh Fallen logs Perches Score = 1 for each Score Presence of water: Permanent Score= 3 Seasonal Score 42 If pernuuient water is greater than 2 feet deep during driest season, add 2 points . ....<.r :'K%r�.'nr }nt•� �;� +n!�a.r w,�+�s,W%.��Y�.? :r. Score 1— r�>em,rn�cu?r� pg.2 z • HW rY1 JU :U O: .(/) :v) w• :W F-` :W O• ga u) 3 = d. ;mow z I— O w O co. Ot ww —O tii z =" O~ L U D 1 r 4 1 i Water Storage Functions Location in watershed: (If wetland has no intct or outlet. middle third upper thi Store =.3 Score = 2 lower third Q Sere = 1 Score Storm: Is surface water stored in this wetland? Yes Score =3 Size of wetland: >7 accts Score= 5 >510 7 acres Score = 4 >3 to 5 acres Score = 3 Oto1 Score l For total score, multiply sub -score for storage by sub -score for size. Sub -Score U 1 to 3 acres Score = 2 Sub -Score 1 Total Score 1 Water Quality itssidence Time; No owlet Scare �3 movement in outlet but no movement evident in wetland Score = 2 Score 3 Vegetation Density: 75 -100% of WL covered w/ 50-75% of WL covered w/ 25 -50% of WL covered emergent vegetation emergent vegetation cmclg- Won Score =3 Score =2 Scare fl Score 1. +o-bfk pg.3 iNA7-1' no pvide 9.4c*. t) City of Tukwila Steven M. Mullet, Mayor October 31, 2000 Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 VIA FAX 206 - 524 -0337 Re: Quik Park 3610 South 158th E99 -0005 (SEPA) L99 -0010 (Design Review) L99 -0064 (Special Permission — Sign) ' L2000 -033 "(Special Permission — Wetland Buffer Reduction) Dear Michael: On October 5th (in response to our July 11, 2000 technical review comments), you submitted additional documentation on the above - referenced files. We have completed our detailed review of that documentation. However, certain additional information is still needed from you to ensure that the project meets the substantive requirements of the City and to complete our review process. We have the following comments: GENERAL COMMENTS: We recommend that you update and consolidate the various sets of plans that have been submitted since your original application in February, 1999. That resulting plan set should respond to the following technical review comments. Please provide five copies of the plan set for routing to affected departments. 1. To aid our review, please identify the locations of the latest revisions on each plan sheet. This can be accomplished by surrounding each revised area with a circle or similar visual cue. 2. There are a number of inconsistencies between the information provided in the revised SEPA checklist and the revised plan set (both submitted to this office on May 30, 2000). They are as follows: SEPA Checklist Plans Size of Project Site 396,900 s.f. (9.11 acres) 410,500 s.f. (9.42 acres) Size of Office Building 360 s.f. and 976 s.f. 1,120 s.f. Size of Canopy 1,750 s.f. 2,400 s.f. Number of Parking Spaces 1,060 spaces 1,038 spaces 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 Michael Aippersbach October 31, 2000 Page 2 z Iz w Please make the necessary corrections to either the SEPA checklist or the plan set, as applicable, 6 = and resubmit. v O • o • W SENSITIVE AREAS ORDINANCE: -J H N w Urban Environmentalist's comments w O Detailed comments from Gary Schulz, Urban Environmentalist, dated October 30, 2000 are U ?. attached for your reference. However, the following points are emphasized: = ci �w 3. The wetland located on the south side of the site is exempt from regulation due to its z H small size (less than 1,000 s.f.) and its rating as a Type 3. Please include this wetland's t— O boundary and size on the site plan and label it "Type 3 — Exempt ". w w 4. A wetland analysis was prepared by B- twelve Associates (dated September 26, 2000) v N' regarding the wetland located on the north portion of the project site. The analysis Q'-- concluded the area does not meet the criteria for hydric soils and will not be considered a w w wetland. However, the analysis must be revised to include more accurate soil data and a ▪ v discussion explaining how this relates to the 1987 Army Corp of Engineers Manual u- O wetland determination methodology. w z 5. To date, your consultants' information pertaining to the watercourse corridor (Gilliam Creek) on the western portion of the site has been conflicting and inconsistent. Revisions z and changes are required to resolve sensitive area issues and mapping problems and to make this information consistent. These revisions and changes should be addressed in one wetland evaluation report. The revised information must be submitted by one wetland consultant verifying or re- delineating all of the watercourse and wetland areas in this portion of the site. Please label the wetland and watercourse with the appropriate ratings. Planning Department comments 6. Sheet 13 provides a listing of the trees to be removed from sensitive areas (i.e., located outside of the right -of -way and on slopes 20% and higher). However, per our April 28th letter, a tree replacement table (meeting the criteria of TMC 18.54.130(3)(B)) is still required. Please add the replacement table to Sheet 13. SPECIAL PERMISSION - WETLAND BUFFER REDUCTION: Planning Department comments 7. Based upon your evaluation of the wetland, you have requested that the required 25 -foot wetland buffer be reduced by 50% to 12.5 feet. Per TMC18.45.040(C)(4)(a), the wetland buffer may only be reduced to 15 feet. As stated above, please revise all affected plans to reflect the proposed 15 -foot wide wetland buffer and relocate all fencing and hard surfaces Michael Aippersbach October 31, 2000 Page 3 z 5 � I. outside the buffer. PLEASE NOTE: You may wish to re- evaluate the need to reduce the ,Q: w buffer setback before resubmitting your revised plan sets. JU DESIGN REVIEW: u) O w =. Planning Department comments -J 1- CD w w 0 8. The Design Review Application, Exhibit A, contains numerous blanks that must be 2 completed. P a• Q 9. Sheets 8, 9 and 15 are inconsistent with Sheets L1 and L2. We have the following • d comments: i_- _ zi • The area from south of the maintenance building to the area north of the propane z O. tank is inconsistent in these five plan sheets (parking areas versus landscaped w w areas). 2 D U � • The parking spaces on the east side of the maintenance building appear on some ,o H plan sheets and not on others. In any case, they should be eliminated as they w w create a conflict with the parking spaces directly south of the maintenance building. H v u- O. • The required fencing around the propane tank must be shown (inside of, and in Ili z addition to, the bollards) on all plan sheets. H O~ • In some plans, the bus parking is shown in front of, and blocking, passenger z spaces. In other plans, bus parking is shown as a separate, striped area. 10. On Sheet 7, the number of compact stalls in the second row of cars from the north property line should be shown as 57 cars, not 47 cars. Of the total 1,038 parking spaces, please break out the number of regular, compact and handicap spaces on this sheet. 11. You have indicated that a 10 foot utility easement lies outside the north property line, running through a portion of the existing stand of trees. Please provide a copy of this easement and also locate the easement dimensions on the site plan. 12. The east elevation on Sheet 2/3 should contain the same "sunburst" architectural detail as shown on the other elevations. 13. Landscaping, where it occurs, should be reflected in the applicable elevation views on Sheets 1/3, 2/3 and 3/3. Building Official- Senior Plans Examiner comments 14. One barrier -free van - accessible handicapped parking space will be required for both the office building. and the maintenance building. In each case, the space must be located on Michael Aippersbach October 31, 2000 Page 4 the shortest accessible route of travel to the main entrance of the building it serves. Where practical, the accessible route of travel shall not cross lanes of vehicular traffic. 15. Although your proposed accommodation plan for disabled customers is probably in the best interest of Quik Park, it will not be required. The parking lot is not related to, or in support of, any building. Therefore, under Table 11f of the Uniform Building Code, handicapped parking for customers is not required. It is the responsibility of the owner to provide or not provide for customers with disabilities as it relates to the parking lot. Public Works Department comments • None. Fire Department comments • None. SPECIAL PERMISSION -SIGN: Planning Department comments 16. As we discussed, your Special Permission Sign application will be processed by the Director of Community Development, contingent upon the Planning Commission's review and approval of your design review application. 17. As required under the Special Permission Sign Application, please provide four color copies of the proposed freestanding sign. 18. The L- shaped portion of the site located at South 160th (the proposed location of the freestanding sign) should be redesigned to eliminate the irregular shape created by the 90° angle in the property line. A rectangular shape will create a more viable parcel. This can be achieved by extending a straight line from South 160th northward to the outlanes at the project entrance. This line may run at a slight angle to achieve an average width of 50 to 60 feet from the western property line to the western right -of -way boundary along South 158th. Please make this adjustment and revise all affected plans. ADDITIONAL COMMENTS: As a courtesy, we are providing you with additional information. Although this information is not required at this time, you may wish to obtain this information prior to applying for land altering and building permits. 19. The Public Works Department has identified a number of deficiencies in the plans that must be addressed prior to the issuance of the construction permits. Please contact Dave McPherson, Associate Engineer at 206 -433 -0179 to discuss these deficiencies. leettia • ':mss' " }rirG u,i 4r.4v d kil b Michael Aippersbach October 31, 2000 Page 5 z I I- 20. As we indicated in our April 28, 2000 letter, required fire hydrants shall be approved for location by w the Fire Department, approved for purity by Water District #125 and fully in service prior to the start of construction. By line of vehicular travel, a fire hydrant must be no further than 150 feet from a -I 0. structure and no portion of a structure shall be over 300 feet from a fire hydrant. If water lines are to CD p be extended to accommodate fire hydrants, please contact Water District #125 regarding associated u) w: fees. All water lines must meet Tukwila Public Works Department standards. If you have any F' questions conceming this item, please contact Mike Alderson, Assistant Fire Chief at 206 - 575 -4404 u) Li_ or Mike Cusick in the Public Works Department. w O 21. As we indicated in our September 9, 1999 and April 28, 2000 letters, the approval and recording of ii.. Q any lot consolidation(s) and/or boundary line adjustment(s) will be required after issuance of the , CO d Design Review and SEPA permits and prior to the issuance of the land altering permit. = w z 1 Upon receipt of the items referenced in Items 1 through 18 above, we will continue processing your H O' applications. Due to the application deficiencies stated above, public notice requirements and the Planning w F- Commission's current schedule, a public hearing on the matter will not be held until next year. As you know, M D' our ability to arrange for a hearing date before the Planning Commission is dependent upon the timing of your v 0; resubmission, its contents and responsiveness to the technical review comments provided in this letter, as 10 o H. well as availability on the Commission's agenda. w w At the point that your plans and associated documentation have been approved for submission to the r Planning Commission, you will be advised of the number of additional copies that will be required. — z: Additionally, a complete set of PMTs will be required at that time. Please contact me at 206 -431 -3663 with 0 Lii 5 any questions. i I 0 z Sincerely, Deborah Ritter Assistant Planner Enclosures cc: Brian Shelton, City Engineer Mike Alderson, Assistant Fire Chief Jack Pace, Planning Manager Gary Schulz, Urban Environmentalist Dave McPherson, Associate Engineer City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director MEMORA.NDUIVI TO: Steve Lancaster, DCD Director Deborah Ritter, Assistant Planner FROM: Gary Schulz, Urban Environmentalist DATE: October 30, 2000 RE: Quik Park #E99 -0005, #L99 -0010 — Sensitive Areas Technical Review. This memo is a re- review of wetland information combined with the recently submitted study by B- twelve Associates, Inc. (SRO/Republic Parking -Quick Park, Wetland Analysis Report 9/26/2000). In addition, a wetland buffer enhancement plan was provided by B- twelve Associates to request approval of buffer reduction adjacent to the watercourse corridor (Gilliam Creek). The buffer enhancement plan, date - stamped Received 10/09/00, was not thoroughly reviewed due to probable changes to the wetland boundary within the Gilliam Creek corridor. As a result of the recently submitted information, I performed a site visit on 10/20/00 and met with B- twelve Associates staff on 10/23/00. Revisions to wetland site planning are being recommended because of past wetland determination changes and mapping inconsistencies. A summary of the wetland status and sequence of events is provided as follows. This memo will update many of my review comments provided in memos dated 7/10/00 and 4/24/00. Wetland Areas Three wetland reports (10/10/97, 7/17/98, & 9/20/99) were submitted with the related investigations conducted by Shapiro & Associates, Inc. Three distinct wetland areas were identified on the site. The First wetland located on the south side of the site is exempt from regulation due to its small size (< 1,000 square feet) and rating as Type 3. It is recommended that this wetland's boundary and size be included on the site plan and labeled as Type 3 - Exempt. 00 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206- 431 -3670 • Fax: 206 - 431 -3665 Quik Park Memo October 30, 2000 Page 2 A Second small and isolated wetland was delineated on the north portion of the project site and rated a Type 2 because of a forested wetland class (Shapiro & Assoc. 9/20/99). Type 2 wetlands cannot be permanently altered unless the Tukwila Planning Commission approves an application through the Reasonable Use Exception process. Subsequently, this area was re- reviewed by B- twelve Associates (Wetland Analysis — 9/26/00). They concluded this area does not have wetland hydric soils and it is assumed the wetland hydrology criteria would not be present. The B- twelve Associates' analysis includes some soil data that was not confirmed during the field visit. The soil profiles and conditions observed indicate the area has some seasonal drainage and is a marginal situation. Hydric soil indicators are present at depths just below the wetland determination criteria for soil. Therefore, the area will not be considered wetland. It is recommended the analysis be revised to include more accurate soil data and a discussion to explain how the data relates to the 1987 Corps manual's wetland determination methodology. This information will be included in an overall wetland report for the project site. The Third wetland area is a non - isolated condition that is part of the watercourse corridor (Gilliam Creek) located on the western portion of the site. The wetland area, flagged by Shapiro & Associates, is located near the middle of the watercourse corridor. The boundary of the Creek and associated wetland were revised and two different flagging surveys of these areas are included in the current submittal. The watercourse rating for this portion of Gilliam Creek (# 22 -3) is a Type 3. Type 3 watercourses have a standard buffer setback of 15 feet. The associated wetland, connected with Gilliam Creek, also appears to have a Type 3 rating. Type 3 wetlands have a standard buffer setback of 25 feet. There is no indication of the type of watercourse or associated wetland on the project plan sheets; however, a wetland buffer of 25 feet is shown with some encroachment into the buffer. A buffer reduction request with a buffer enhancement plan was submitted for review. The wetland buffer area in question has dominant Himalayan blackberry and is an appropriate area to reduce the buffer provided no native vegetation is removed. The current site plan must be adjusted to allow at least 15 feet of wetland buffer setback adjacent to the proposed parking lot developments. The on -site meeting with B- twelve Associates confirmed the most recent wetland/watercourse survey has an error that could affect the buffer setback zone and the proposed buffer enhancement. The buffer enhancement plan also shows a parking design revision that is not the current plan submittal. Quik Park Memo October 30, 2000 Page 3 To resolve sensitive area issues and mapping problems, I recommend revisions /changes be addressed by one wetland evaluation report. The revised information will be submitted by one wetland consultant that will verify or re- delineate all of the wetland/watercourse areas. This complete evaluation will assist in preparing for design review and the approval of related permits. Also, please label the wetland and watercourse (Gilliam Creek) with the appropriate ratings. Cc: Jack Pace, Planning Manager Mike Cusick, Associate Engineer W ' � , • 6 • ,U O' cn w; J H`. W •ua0. g -. LL. Q' • H w Z F— O s .Z 1--: ui O. ui z; U • U=;. • z October 9, 2000 b- twelve Associates, Inc. Mr. Gary Shulz Department of Community Development City of Tukwila 6300 Southcenter Blvd. Suite 100 Tukwila, WA 1103 W. Meeker St. Suite C Kent, WA 98032 -5751 RE: SRO Quick Park, Wetland Buffer Enhancement Plan Dear Gary, (v) 253 - 859 -0515 (f) 253 - 852 -4732 (e) info @b12assoc.com F C V 4i D C);:;-1- 0 9 2000 COMMUNITY DEN r4L QPMENT Enclosed please find four (4) copies of our proposed Wetland Buffer Enhancement Plan for the SRO -Quick Park project located to the east of the Lewis and Clark Cinema at South 158th Street. The project proposes a minor area of wetland buffer reduction along the western edge of the parking lot. To accommodate this reduction, we have prepared the enclosed enhancement plan for all parts of the buffer that will be less than the 25 -foot buffer required for this Type 3 wetland. The minimum buffer width is 15 -feet as required by Section 18.45.040.4.a. As you are aware, blackberry comprises the majority of the vegetation in this buffer area.— Several scattered cottonwood and alder trees are also present. Therefore, the buffer is exceptionally well suited to enhancement. Please give me a call if we can answer any questions or provide additional information. Sincerely, B- twelve Associates, Inc. ,&-)6J(.14C Susan L. Burgemeister President Enc. ya054 Cc: Gary Beck, Republic Parking Michael Aipperbach George Reynolds, Perteet Engineering File AOl77Shulz.doc Y z F- W 00 o 11) U) 111 �LL W o; eau- Q .z c7' w zo .. AU a U 'O N; o w W` H V AL a z. 0� z MEMORANDUM To: Gary Schulz, Urban Environmentalist (206- 431- 3662/fax: 206 - 431 -3665) City of Tukwila orr„liecE N ED Op r� iCA From: Michael Aippersbach OCT 0 5 ?000 Re: Quik Park Project (Off- Airport Parking FacilityreAlaj7CF 3610 South 158th Street Nrea L99 -0010 (Design Review) E99 -0005 (SEPA) L99 -0064 (Special Permission Sign) Date: 10- 5- 2000/Thursday Hand Delivered Re: Wetland Analysis Report (dated September 26, 2000) - B- twelve Associates z w,1.- 2 JU U 0. CO U) • F. • w; w0 u. =d" w z� �o z (- Gary, enclosed for your review and the City's decision are two (2) copies of a report 2 prepared by B- twelve Associates for the small area of our proposed site located west of the graveled road (leading down to the existing billboard sign) and originally delineated 0 as a Type 2 wetland by Shapiro & Associates. ww The enclosed report concludes with their opinion that the area in question "does not meet =- r the City and Federal criteria to be classified as a wetland because the three- parameter test 0 (of a wetland) is not met." (page 5 of the report) z Lid I 00ff z I know you are just returning from a much deserved vacation, but I wanted to have the report available to you for your earliest review and consideration. My understanding is that once you complete your review, you will prepare a recommendation to the Director of Community Development (Steve Lancaster). At that point (after review and discussion of your recommendation), the Director will either concur or disagree with the report's conclusions. Let me know if you need anything more. You can reach me at (206) 523 -3764, e-mail me at aipp @prodigy.net or by fax at (206) 524 -0337. Thanks, Gary! cc. Deb Ritter c/ projects / republic /desgnrev.dsk:schume04doc Michael Aippersbach & Associates PO Box 95429 - Seattle WA 98145 - (206) 523- 3764/Fax: (206) 524 -0337 .na- n,..,..,...... .yCyp ^✓oevrt!w *Pmea- memerftww ..,..+. 5+! o+ AF'. Otan "K,Mt4+1`li"1Trkg,.. . �.. July 11, 2000 City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 VIA FAX 206 - 524 -0337 Re: Quik Park 3610 South 158th E99 -0005 (SEPA) L99 -0010 (Design Review) L2000 -033 (Special Permission — Wetland Buffer Reduction) Dear Michael: We are enclosing a copy of the technical review comments from Gary Schulz, Urban Environmentalist, dated July 10, 2000. These comments pertain to the sensitive areas documentation you submitted on May 30, 2000. If you have any questions regarding these comments, please contact Gary at 206 -431 -3662. As I told you last week, your wetland consultants verbally concurred with Gary's methodology during the June 30th field meeting. They were also in agreement that the 1,100 square foot wetland on the north portion of the site is a Type 2. Under the circumstances, we cannot continue processing your applications until you have informed us as to how you wish to proceed. The SEPA Determination as well as your proposal for Design Review will be affected by your disposition of the 1,100 square foot wetland. Additionally, your decision to either fill the wetland or to maintain its viability will determine whether your existing documentation must be revised or augmented. If you should have any questions, please contact me at 206 -431 -3663. Sincerely, -buCocra-h, Otste--- Deborah Ritter Assistant Planner Enclosures cc: Jack Pace, Planning Manager Gary Schulz, Urban Environmentalist 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director MEMORANDUM TO: Steve Lancaster, DCD Director Deborah Ritter, Assistant Planner ,r<2. FROM: Gary Schulz, Urban Environmentalist DATE: July 10, 2000 RE: Quik Park #E99 -0005, #L99 -0010 — Sensitive Areas Technical Review. I have reviewed the most recent revisions, date stamped Received 5/30/00, including previously submitted project plan sheets for the Quik Park development. The project is subject to sensitive area regulations and proposes a wetland alteration with on -site mitigation. My review is focused on the regulated wetland areas as listed below: A. Wetland Areas Three wetland reports (10/10/97, 7/17/98, & 9/20/99) have been submitted with the related investigations that were conducted by Shapiro & Associates, Inc. Three distinct wetland areas have been identified on the site. The First wetland located on the south side of the site is exempt from regulation due to its small size (< 1,000 square feet) and rating as Type 3. It is recommended that this wetland's boundary and size be included on the site plan and labeled as Type 3 - Exempt. The Second small and isolated wetland located on the north portion of the project site is now reported to be 1,100 square feet by professional survey but was rated a Type 2 because of a forested wetland class (Shapiro & Assoc. 9/20/99). Trees that are at least 20 feet in height and rooted in the wetland constitute a forested class (US Fish and Wildlife Service 1979). The majority of trees in this wetland are black cottonwood. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 -431 -3665 • Quik Park Memo July 10, 2000 Page 2 Because this wetland has more than 20 percent coverage of trees, it is rated Type 2 (TMC 18.45.020). Type 2 wetlands cannot be permanently altered unless the Tukwila Planning Commission approves an application through the Reasonable Use Exception process. Shapiro & Associates re- evaluated the wetland and reported the areal tree cover was less than Tukwila's standard of 20 percent related to a determination for a Type 2 rating (Shapiro & Assoc. 5/26/00). A field meeting with Shapiro & Associates was conducted on 6/30/00 to determine if the wetland rating should be changed to the lower rating of Type 3. The result of the field meeting included agreement that greater than 20 percent cover of trees (20 feet in height) are present within the wetland and its rating remains as Type 2. A Reasonable Use application is required to use this wetland. The current site plan shows the wetland area being filled for parking lot development. A conceptual mitigation plan is presented to replace wetland area at a ratio of 1.5 to 1.0 including the associated wetland functions. In addition, the mapped location of this wetland appears incorrect and is apparent on the aerial photograph of the site plan. The wetland boundary points are correct but the entire wetland is skewed to the west. Please correct this map error and add the Type 2 wetland labeling. The Third wetland area is a non - isolated condition that is part of the watercourse corridor (Gilliam Creek) located on the western portion of the site. The wetland area and watercourse was flagged by Shapiro & Associates and is located near the middle of the watercourse corridor. The boundary of the Creek and associated wetland have been revised and the actual flagging survey of these areas is now included in the current submittal (Shapiro & Assoc. 10/10/97). The watercourse rating for this portion of Gilliam Creek (# 22 -3) is a Type 3. Type 3 watercourses have a standard buffer setback of 15 feet. The associated wetland, connected with Gilliam Creek, also appears to have a Type 3 rating. Type 3 wetlands have a standard buffer setback of 25 feet. There is no indication of the type of watercourse or associated wetland on the plan sheets; however, a wetland buffer of 25 feet is shown. The current site plan submittal (dated 5/30/00) shows encroachment into the 25 -foot wetland buffer. This encroachment extends to a point that only retains about 6 feet of wetland buffer (See Sheet 15). The applicant project manager has submitted a letter requesting buffer reduction with enhancement for this portion of the parking lot development (Michael Aippersbach 5/29/00). Per the SAO, a reduced wetland buffer cannot be less than 15 feet (TMC 18.45.040). Quik Park Memo July 10, 2000 Page 3 z ,E- z The wetland buffer area in question has dominant Himalayan blackberry and is an appropriate area re 2 to reduce the buffer provided no native vegetation is removed The current site plan must be 6 v adjusted to allow at least 15 feet of wetland buffer setback adjacent to the proposed parking lot 0 O' u) 0; developments. w w Also, please label the wetland and watercourse (Gilliam Creek) with the appropriate ratings. p w 3 le a. B. Wetland Mitigation co a mow. The proposed wetland mitigation is located on the ravine slope. This may be appropriate for z '' replacing a small wetland area. However, an increased water quality improvement function would z O be preferred through the construction of benches and a swale to convey the water through emergent W vegetation. v �; ,0 1- w W �U • ~O. Per the tree regulations (TMC 18.54), trees removed from sensitive areas, except black cottonwood, w z are subject to replacement standards. These standards are found in TMC 18.54.130, 3. The 0 =`. ordinance does exempt tree removal within City- approved rights -of -way and easements. z 1- C. Tree Replacement Please show the replacement table that determines the number of new trees to meet the requirement of replacing trees within sensitive areas except for those removed from the new road right -of -way (TMC 18.54.130, 3.). A detail of the tree planting can be provided after the numbers and proposed locations are approved. Please let me know if there are questions. Cc: Jack Pace, Planning Manager Mike Cusick, Associate Engineer June 28, 2000 City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 Re: Quik Park 3610 South 158th E99 -0005 (SEPA) L99 -0010 (Design Review) L99 -0064 (Special Permission — Sign) L2000-033 (Special Permission - Wetland Buffer Reduction) Dear Michael: On May 30th (in response to our April 28, 2000 technical review comments), you submitted additional documentation on the above - referenced files. We have completed our detailed review of that documentation. However, certain additional information is needed from you to ensure that the project meets the substantive requirements of the City and to complete our review process. We have the following comments: GENERAL COMMENTS: 1. To aid our review, please identify the locations of the revisions on each plan sheet. This can be accomplished by surrounding each revised area with a circle or similar visual cue. 2. There are number of inconsistencies between the information provided in the revised SEPA checklist and the revised plan set (both submitted to this office on May 30, 2000). They are as follows: SEPA Checklist Plans Size of Project Site 396,900 s.f. (9.11 acres) 410,500 s.f. (9.42 acres) Size of Office Building 360 s.f. and 976 s.f. 1,120 s.f. Size of Canopy 1,750 s.f. 2,400 s.f. Number of Parking Spaces 1,060 spaces 1,038 spaces Please make the necessary corrections to either the SEPA checklist or the plan set, as applicable, and resubmit. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 y Michael Aippersbach June 28, 2000 Page 2 SENSITIVE AREAS ORDINANCE: PLEASE BE ADVISED THAT SENSITIVE AREAS ISSUES REMAIN TO BE ADDRESSED WHICH MAY REQUIRE A SIGNIFICANT REDESIGN OF YOUR PROPOSAL. Urban Environmentalist's comments 3. Technical review comments from Gary Schulz, Urban Environmentalist will be provided to you under separate cover. If you should have any questions regarding his comments, please contact Gary at 206 -431 -3662. Planning Department comments 4. Sheet 13 provides a listing of the trees to be removed from sensitive areas (Le., located outside of the right -of -way and on slopes 20% and higher). However, per our April 28th letter, a tree replacement table (meeting the criteria of TMC 18.54.130(3)(B)) is still required. Please add the replacement table to Sheet 13. SPECIAL PERMISSION - WETLAND BUFFER REDUCTION: Planning Department comments 5. Based upon your evaluation of the wetland, you have requested that the required 25 -foot wetland buffer be reduced by 50% to 12.5 feet. Per TMC18.45.040(C)(4)(a), the wetland buffer may only be reduced to 15 feet. If you wish to pursue a reduction in the required wetland buffer, please revise all affected plans to reflect the proposed 15 -foot wide wetland buffer and relocate all fencing and hard surfaces outside the buffer. DESIGN REVIEW: Planning Department comments 6. The Design Review Application, Exhibit A, contains numerous blanks that must be completed. 7. Sheets 8, 9 and 15 are inconsistent with Sheets L1 and L2. We have the following comments: • The area from south of the maintenance building to the area north of the propane tank is inconsistent in these five plan sheets (parking areas versus landscaped areas). WO z 1-1 U. 00� cn W W =: —.I H-, • LL WO u_ u) d = W' 1- Z F-- 1— O Z �--. gy• p`, O N:. C1ff W w' ILO, Z. W U co O z Michael Aippersbach June 28, 2000 Page 3 z • The parking spaces on the east side of the maintenance building appear on some ~ w plan sheets and not on others. In any case, they should be eliminated as they create a conflict with the parking spaces directly south of the maintenance building. 0 N 0: • The required fencing around the propane tank must be shown (inside of, and in cn W addition to, the bollards) on all plan sheets. -' H co u- wO • In some plans, the bus parking is shown in front of, and blocking, passenger 2 spaces. In other plans, bus parking is shown as a separate, striped area. Q 8. On Sheet 7, the number of compact stalls in the second row of cars from the north = a property line should be shown as 57 cars, not 47 cars. Of the total 1,038 parking spaces, i-- w please break out the number of regular, compact and handicap spaces on this sheet. z 1-- I— O 9. You have indicated that a 10 foot utility easement lies outside the north property line, running w w through a portion of the existing stand of trees. Please provide a copy of this easement and 2 n also locate the easement dimensions on the site plan. V (. O — o 1- 10. The east elevation on Sheet 2/3 should contain the same "sunburst" architectural detail as w w shown on the other elevations. 1- v. u_ H — O: 11. Landscaping, where it occurs, should be reflected in the applicable elevation views on Cu z Sheets 1/3, 2/3 and 3/3. .0 O~ Building Official- Senior Plans Examiner comments z 12. One barrier -free van - accessible handicapped parking space will be required for both the office building and the maintenance building. In each case, the space must be located on the shortest accessible route of travel to the main entrance of the building it serves. Where practical, the accessible route of travel shall not cross lanes of vehicular traffic. 13. Although your proposed accommodation plan for disabled customers is probably in the best interest of Quik Park, it will not be required. The parking lot is not related to, or in support of, any building. Therefore, under Table 11f of the Uniform Building Code, handicapped parking for customers is not required. It is the responsibility of the owner to provide or not provide for customers with disabilities as it relates to the parking lot. Public Works Department comments • None. Fire Department comments • None. - ....a......�a+- ^n1°9xr m ,"✓ 'N+��raN'AY'8!• Mtmai. mtrt r, �t6 1** Y tXM Michael Aippersbach June 28, 2000 Page 4 SPECIAL PERMISSION -SIGN: Planning Department comments 14. As we discussed, your Special Permission Sign application will be processed by the Director of Community Development, contingent upon the Planning Commission's review and approval of your design review application. 15. As required under the Special Permission Sign Application, please provide four color copies of the proposed freestanding sign. 16. The L- shaped portion of the site located at South 160th (the proposed location of the freestanding sign) should be redesigned to eliminate the irregular shape created by the 90° angle in the property line. A rectangular shape will create a more viable parcel. This can be achieved by extending a straight fine from South 160th northward to the outlanes at the project entrance. This line may run at a slight angle to achieve an average width of 50 to 60 feet from the western property line to the western right -of -way boundary along South 158th. Please make this adjustment and revise all affected plans. ADDITIONAL COMMENTS: As a courtesy, we are providing you with additional information. Although this information is not required at this time, you may wish to obtain this information prior to applying for land altering and building permits. 17. The Public Works Department has identified a number of deficiencies in the plans that must be addressed prior to the issuance of the construction permits. The enclosed Public Works' memo dated June 7, 2000 addresses these deficiencies. We also enclose one set of plans and the April 2000 Perteet Technical Information Report showing Public Works' red -line comments. Please contact Mike Cusick, Associate Engineer at 206 -433 -0179 with any questions you may have. 18. As we indicated in our April 28, 2000 letter, required fire hydrants shall be approved for location by the Fire Department, approved for purity by Water District #125 and fully in service prior to the start of construction. By line of vehicular travel, a fire - hydrant must be no further than 150 feet from a structure and no portion of a structure shall be over 300 feet from a fire hydrant. If water lines are to be extended to accommodate fire hydrants, please contact Water District #125 regarding associated fees. All water lines must meet Tukwila Public Works Department standards. If you have any questions concerning this item, please contact Mike Alderson, Assistant Fire Chief at 206 - 575 -4404 or Mike Cusick in the Public Works Department. 19. As we indicated in our.September 9, 1999 and April 28, 2000 letters, the approval and recording of any lot consolidation(s) and /or boundary line adjustment(s) will be required after issuance of the Design Review and SEPA permits and prior to the issuance of the land altering permit. Michael Aippersbach June 28, 2000 Page 5 Upon receipt of the items referenced in Items 1 through 16 above, we will continue processing your applications. Due to the application deficiencies stated above and to public notice requirements, a public hearing on the matter will not be held on July 27, 2000. As you know, our ability to arrange for a hearing date before the Planning Commission is dependent upon the timing of your resubmission, its contents and responsiveness to the technical review comments provided in this letter, as well as availability on the Commission's agenda. At the point that your plans and associated documentation have been approved for submission to the Planning Commission, you will be advised of the number of additional copies that will be required. Additionally, a complete set of PMTs will be required at that time. Please contact me at 206 -431 -3663 with any questions. Sincerely, Deborah Ritter Assistant Planner Enclosures cc: Brian Shelton, City Engineer Mike Alderson, Assistant Fire Chief Jack Pace, Planning Manager Gary Schulz, Urban Environmentalist Mike Cusick, Associate Engineer z z1- ~w. z J0 .0 O N: ` 0cnw W =: w 0' = d _. z� I- 0. z w w. D O 1• - IJJ =V • O • Z'. 0 ~' z State of Washington County of King City of Tukwila CITY OF TUKWILA Department of Community Development 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan @ci.tukwila.wa.us JUN 0 7 2000 COMMUNr DEVELOPMENT AFFIDAVIT OF INSTALLATION AND POSTING OF PUBLIC INFORMATION SIGN(S) I 114 ic4-l1'_ ,4 /P,Pie PJAe! -/ (PRINT NAME) understand that Section 18.104.110 of the Tukwila Municipal Code requires me to post the property no later than fourteen (14) days following the issuance of the Notice of Completeness. I certify that on 6 -5- 00 the Public Notice Board(s) in accordance with Section 18.104.110 and the other applicable guidelines were posted on the property located at 3. t IO S1 t 5 so as to be clearly seen from each right -of -way primary vehicular access to the property for application file number La-cDO -O3 I herewith authorize the City of Tukwila or its representative to remove and immediately dispose of the sign at the property owner's expense, if not removed-in a timely manner or within fourteen (14) days of a Notice letter. C. )likdatiL Applicant or Project Man is Signature On this day personally appeared before me rn (C,L q �, t jj�� QP/h S 1CLto me known t e the individual who executed the foregoing instrument and acknowledged tliat a he signed the same a is er voluntary act and deed for the uses and purposes mentioned therein. SUBSCRIBED A e this _5 day of L{_M e G: IAPPHAN1LANDUSE .APPISUBPR95.D0C, 17/10/99 RY PUBLIC in and for the ng at Cn My commission expires on (1, City of Tukwila Steven M. Mullet, Mayor Department of Community Development Steve Lancaster, Director NOTICE OF APPLICATION DATED JUNE 5, 2000 The following application has been submitted to the City of Tukwila Department of Community Development for review and decision. APPLICANT: Michael Aippersbach, as agent for Quik Park LLC LOCATION: 3610 South 158th, Tukwila FILE NUMBERS: L2000 -0033 (Special Permission — Request for 50% Reduction in Wetland Buffer) PROPOSAL: To reduce the width of the wetland buffer (along the stream corridor on western side of property) from 25 feet to 15 feet OTHER REQUIRED PERMITS: E99 -0005 (SEPA Determination) L99 -0010 (Design Review) L99 -0064 (Special Permission — Sign) Land Altering Permits, City of Tukwila Building Permits, City of Tukwila Hydraulic Project Approval, Army Corps of Engineers These files can be reviewed at the Department of Community Development, 6300 Southcenter Blvd., #100, Tukwila, WA. Please call (206) 431 -3670 to ensure that the file(s) will be available. OPPORTUNITY FOR PUBLIC COMMENT You can submit comments on this application. You must submit your comments in writing to the Department of Community Development by 5:00 p.m. on June 19, 2000. If you have questions about this proposal contact Deborah Ritter, the Planner in charge of this file at (206) 431 -3663. Anyone who submits written comments will become parties of record and will be notified of any decision on this project. 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206 - 431 -3670 • Fax: 206 - 431 -3665 z. z I- z J 0: oo co o W w W w u. = Cl z� 1- o` Z F- •off ww 1- - -0. Z 111 • -I z June 2, 2000 City of Tukwila Steven M. Mullet, Mayor Department of Community Development NOTICE OF COMPLETE APPLICATION Michael Aippersbach Michael Aippersbach & Associates P.O. Box 95429 Seattle, Washington 98145 Re: Quik Park 3610 South 158th Request for Wetland Buffer Reduction L2000 -033 Dear Michael: Steve Lancaster, Director Your application for a reduction in the width of the wetland buffer (under the above - referenced file number) has been found to be complete as of June 2, 2000 for the purposes of meeting state mandated time requirements. Essentially, this means that you have supplied the required items listed on the application checklist for this type of permits. We are enclosing two laminated copies of the "Notice of Application" to post on both of the existing notice boards. Please post both of the Notices on Monday June 5, 2000. This is the same day that we will be mailing notice to parties of record and agencies. After you have posted the laminated Notices on the signs, please return the signed and notarized "Affidavit of Installation and Posting" to me. We are about to commence our technical review process, which is the next phase in the processing of your application for a reduction in the width of the wetland buffer. Although your application has been found to be "complete ", the items you supplied may have to be revised or amended. The City may also require that you submit additional plans and information to ensure the project meets the substantive requirements of the City and to finalize the review process. If you have any questions, please feel free to call me at 206 -431 -3663. Sincerely, Deborah Ritter Assistant Planner cc: Gary Schulz, Urban Environmentalist Mike Cusick, Associate Engineer Mike Alderson, Assistant Fire Chief 6300 Southcenter Boulevard, Suite #100 • Tukwila, Washington 98188 • Phone: 206- 431 -3670 • Fax: 206 - 431 -3665 CITY OF TUKWILA RECEIVED CITY OF TUK'�`` `j- J oU1C(, Department of Community DevelopmentPER " "T CENTER 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3670 FAX (206) 431 -3665 E -mail: tukplan @ci.tukwila.wa.us SPECIAL PERMISSION DIRECTOR APPLICATION FOR STAFF USE ONLY Sierra Type: P -SP Planner: —1 lJ I erg/ File Number: L2o0 0 '- 0 _ - Application Complete (Date: ) Project File Number: .-1=2e. q ,. 0360 Application Incomplete (Date: ) Other File Numbers: L� _ Om S i LC 1-ooce ( 1...� -cto D. et NAME OF PROJECT/DEVELOPMENT: subdivision, access street, and nearest intersection. LIST ALL TAX LOT NUMBERS. 36 to - s . t5Sh• .S ee- 2 3').3oy -1090, l c`bal)9DI 4- 61076 LAX P (-- an(Q bitHee- LOCATION OF PROJECT/DEVELOPMENT: Give street address or, if vacant, indicate lot(s), block and l Quarter: SU.% Section: iL Township: 2:S Range: 1-1 (This information may be found on your tax statement.) DEVELOPMENT COORDINATOR : The individual who: • has decision making authority on behalf of the applicant in meetings with City staff, • has full responsibility for identifying and satisfying all relevant and sometimes overlapping development standards, and • is the primary contact with the City, to whom all notices and reports will be sent. Name: M (C 4-ke L Ar(PPFe spy Address: PO DOX 1.1 A 90 r4-5- Phone: (2o 6) 523 - 376 4-� FAX: (2-0 6) 524- - 0337 1 5-30— 00 Signature: ,, Date: .._i ", /i /�;�� G:IAPPHAN\SIGN.HND\SPD.DOC, 17/07/99 s D. PROPERTY OWNER DECLARATION The undersigned makes the following statements based upon personal knowledge: 1. I am the current owner of the property which is the subject of this application. 2. All statements contained in the application are true and correct to the best of my knowledge. 3. The application is being submitted with my knowledge and consent. 4. I understand that conditions of approval, which the City and applicant have jointly agreed may not be completed prior to final approval of the construction (e.g., final building permit approval) will be incorporated into an agreement to be executed and recorded against the property prior to issuance of any construction permits. I declare under penalty of perjury under the laws of the State of Washington and the United States of America that the foregoing statement is true and correct. EXECUTED at 3 /bAlJe. (city), 11/A (state), on lQ , 5110 Sulu 5 M' ,4. 7S , 6. (Print Name) / PT&' &doe GUJ Puq -1.5 (Address) -(7: (Phon umbe (Signature) Ctgeii Use additional sheets as needed for all property owner signatures. Michael Aippersbach & Associates Planning and Development Services CITY pFTUKWILA PERMIT CENTER May 29, 2000 Steve Lancaster Director Community Development Department City of Tukwila 6300 Southcenter Boulevard, Suite 100 Tukwila WA 98188 Re: Wetland Buffer Reduction Request Quik Park, Inc. Project (Off - Airport Parking Facility) 3610 South 158th Street L99 -0010 (Design Review) E99 -0005 (SEPA) L99 -0064 (Special Permission - Sign) Dear Mr. Lancaster, This letter constitutes our formal request to allow for a buffer reduction on the west side of our proposed off - airport parking facility. Paragraph C.4.b. of Section 18.45.040 provides that the "Director may reduce the standard wetland/watercourse buffers on a case -by -case basis provided the buffer does not contain slopes 20 percent or greater. The approved buffer width shall not result in greater than a 50 percent reduction in width, and the reduced buffer shall not be less than 15 feet for wetlands and 10 feet for watercourses." "Any buffer reduction proposal must demonstrate to the satisfaction of the Director that it will not result in direct or indirect, short -term or long -term adverse impacts to wetland or water courses, and that: (1). The buffer is vegetated and includes an enhancement plan as may be required to improve the buffer function and value; or (2). If there is no significant vegetation in the buffer, a buffer may be reduced only if an enhancement plan is provided. The plan must include using a variety of native vegetation that improves the functional attributes of the buffer and provides additional protection for the wetland or watercourse function and values." Sheet 7 of 15 (Perteet Engineering's drawings) of our submittal drawings shows the west side of the proposed site along the ravine (Sheet 15 shows more detail of the same area). There is a jog in the wetland delineation in this area (just north of the propane tank). The jog was discovered when we re- surveyed the wetland and ravine slopes. The jog is an irregular configuration in what is otherwise a very normal wetland edge pattern. Due to the normal exaggerations of geometry when using radii to determine the edge of wetland PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 Page 2 Ltr from Aippersbach & Associates to S. Lancaster, City of Tukwila/5 -29 -00 buffers, the required 25 foot from the jog eliminated approximately 15 parking stalls and impacted a portion of the traffic aisle. We are requesting a buffer reduction of up to 12.5 feet to allow our traffic aisle to remain in it's present location and to recover some of the lost parking without re- designing the entire parking lot. The slope in this area is just under 20 percent. We have already included normal parking lot landscaping in the area where the parking stalls were eliminated (Sheet L1 of the landscape drawings). The proposed landscaping in this area can be modified as necessary. We would propose to finalize a enhancement plan for this buffer reduction area at the same time as we finalize the conceptual wetland mitigation plan which is also being submitted for this project (for the Type 3 wetland near the center of the site). The buffer enhancement would include native species as worked out between your Department (Gary Schulz) and our environmental consultant, Shapiro & Associates. We hope this approach will be satisfactory to you. If you have any question regarding the above, you can reach me at (206) 523 -3764 or fax me at (206) 524 -0337. Thanks! Sincerely, Vka VfL 04/i/Aerk&-- Michael Aippersbach Atth. c/ projects / republic /desgnrev.dsk:tukap111.doc PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 z < Z mow. O 0 t»o. co w w= w • 0'. g 5. co Do I- MI Z �.. 1.0 Z F-- Ill a gyp: o� 0t— w W: =0 o LLI z 0 =: 0 z Michael Aippersbach & Associates Planning and Development Services AFRMIr C�yr� May 29, 2000 a • z Deborah Ritter ce 2 Assistant Planner Community Development Department o o City of Tukwila 6300 Southcenter Boulevard, Suite 100 tu Tukwila WA 98188 co u_ cu Re: Quik Park, Inc. Project (Off- Airport Parking Facility) g 3610 South 158th Street u L99 -0010 (Design Review) = d E99 -0005 (SEPA) L99 -0064 (Special Permission - Sign) z �, I— 0 zr— 1U ui np U o— o wui u- O. III . z co ~ H 0 z Dear Ms. Ritter, Based upon your letter of April 28, 2000, I have the following informational items to include for our resubmittal in response to the City's comments: - 6 - Sets of development plans.. - 1 - Shapiro Letter (Revising prior wetland classification) - 1 - Conceptual wetland mitigation plan - 1 - Colored elevation of the freestanding sign (Sheet 1/3 of architectural drawings) - 1 - Set (3) - Color Boards with building elevations - 1 - ADA Compliance memo - 1 - Letter requesting a wetland buffer reduction (to the Director) - 1 - Revised Design Review Application, Attachment A - 6 - Revised Environmental Checklists - 6 - Revised Responses to International Boulevard Design Guidelines - 1 - Aerial photo (with site plan superimposed) Specific responses to the items listed in your letter are as follows: Items # 4 - 7 - Elevations and associated information to illustrate the design treatment of retaining walls Items # 8 -12 - All of these items have been addressed in the revised site /grading plan Items # 13 - 14 - Revised plans show compliance address these items Items # 15 - 19 - The landscape plans have been revised to comply with these items. Item # 20 - We have provided one (1) copy. Once the staff has accepted the drawing, we will provide the additional 3 -4 copies. Item # 21 - The site plan has been revised accordingly to comply with this issue. Item # 22 - The canopy sign area has been revised on Sheet 2/3 (South elevation). Item # 23 - We have responded to those points which are appropriate at this stage of review. PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 Page 2 Ltr from Aippersbach & Associates to D. Ritter, City of Tukwila/5 -26 -00 Item # 24 - These details will be satisfied for the building permit application. We have prepared for Water District # 125, two (2) separate Developer Extension Agreement applications for the relocation of existing waterlines (for the street and the site). Item # 25 - We acknowledge this comment and will respond at the appropriate point. z We have 'added several other pieces of information for purposes of clarifying our design _ ' w or responding to issues not included in your letter or which surfaced since your letter was r4 � prepared. Please note the following , JU UO W o' w 0 0)d w Z �. • A letter from Shapiro and Associates supporting our assertion that one of the wetlands associated with the project is a Type 3 rather than a Type 2 as originally thought. • A Conceptual mitigation plan to allow us replace the existing Type 3 wetland in the ravine, • A memo indicating how we propose to comply with the ADA standards, • A reduced capacity propane tank (from 5,000 gallon to 2,000 gallon) per the Fire Department, • A written request to the Director to allow for wetland buffer reduction on the west side of the site, and • An aerial photo which has the proposed site plan superimposed on it. As soon as the City has accepted the drawings, I will provide the City with reduced copies (8.5" x 11 "). If you have any question regarding the above, you can reach me at (206) 523 -3764 or fax me at (206) 524 -0337. Thanks! Sincerely, iike;h4L Michael Aippers ach c /projects/ repubtis /desgnrev.dsk:tukap112.doc PO Box 95429 - Seattle, Washington 98145 - (206) 523- 3764/Fax: (206) 524 -0337 RECEIVED CITYP'"'TUKWILA • PERMIT CENTER May 26, 2000 Mr. Gary Schulz . Department of Community Development City of Tukwila 6300 Southcenter Blvd., Suite 100 Tukwila, WA 98188 RE: Classification and Rating of Wetland A at SRO site Dear Mr. Schulz: pneL Imagft SHAPI RO & ASSOCIATES. INC. Wetland A is a small, less than 2,500 square feet, wetland dominated by black cottonwood (Populus balsamifera) of varying height and diameter. This wetland was originally classified as forested with trees over 20 feet tall. The classification was based on a field estimate of the height of cottonwoods within the wetland boundary. Subsequently, a field investigation was performed on April 28, 2000 to determine the average height and areal cover of the cottonwoods within the wetland. As part of the field investigation, the trees were separated into three distinct height groups based on diameter at breast height (dbh): (1) cottonwoods less than 3 inches, (2) cottonwoods between 3 and 4 inches, and (3) cottonwoods greater than 4 inches dbh. The following method was used to determine the average height of each group of cottonwoods: - 1. A- distance of 36 feet was measured from the base of a typical cottonwood within each group. This measurement allowed the top of each group of cottonwoods to be visible. In addition to determining the height of cottonwoods, it was necessary to assess areal cover. According to criteria within the City of Tukwila environmental regulations, a wetland with a forested class (trees greater than 20 feet in height) that comprises 20% or more areal cover would be considered a Class II wetland. As such, in order to distinguish a Class II wetland from a Class III wetland of this size, it is necessary to assess only the areal cover of cottonwoods greater than 20 feet tall. • Mr. Gary Schulz May 26, 2000 Page 2 The findings showed the following: • Group 1 comprised more than 100 plants with a maximum height of-18 feet. Most of the these were between 5 and 10 feet tall and would be considered saplings. • Group 2 and Group 3 comprised a total of 10 trees greater than 20 feet tall within the wetland boundary. Based on the field investigation, the trees appear to have an average canopy diameter of 6 feet. The average cover of each tree would be about 28.3 square feet. It should also be noted that the trees overlap each other about 30% to 40% Of the time, such that the total cover of the ten 20-foot trees is not a cumulative 283 square feet, but 170 to 200 square feet. This would be less than 20% of the 1,100-square-foot wetland. Thus, we feel it reasonable to categorize this site as a Class III wetland. I hope you find this information useful. If you have any questions, please do not hesitate to call me. Sincerely, SHAPIRO AND ASSOCIATES, INC. 'Lee Marc E. Boule Senior Vice President File: L 00 -0033 35mm Drawing #2 -6 File: L 00 -0033 35mm Drawing #1. r, ^1717i7ri:177171,rriT, 4), li�lilli il(Il11 Ililli 11 IIIIIiil ,n10iilll.11111J.11 IIIIIIIII lilT11111 1.111111 i 111111111 Iiiihlll II lit 'Ili�iili,liiii�l iilil.ii�iJiJlii! SW 1/4, SEC 22, TWP 23, R 4 E, W.M. twelve AREA OF CONCERN A BASE MAP PER PERTEET nkkDocsV10- 177SROU0-177Ex B.VCO 11/712000 '.1 IIF .. '•01-1r1oh,•. �iwill IIII1111111 1111111111i111111IiIIIIiinjiU 1111111111IIlIILIIIIIIIIIIIIIIIII 'lllllllllllllllllll� llllllllillllllllill lllllll,ll ijl■ll��)�_ File: L 0 -0033 35•mrn Drawing #2 -6 .11illilll�lli)1i 111► illiiii�lilllai�i�>I lililll��lll. llllll�llillllll�li�IIIIIII�IIIIIIIIIIIIIIIIIII�1` Illlllll�il�illjlll�illifllil�iili ,liiii�il�ilil�_�� . 299.70 31Y.09 / 315.09 1,100 SQUARE FOOT SCRUB SHRUB (SALIX) MITIGATION / WETLANND PIPE PERFORATED IN (RESERVOIR SW ALE FLAN VIEW ,1" =20' `EXISTING GRADE /CRUSHED ROCK COVER 16" COIR BIOLOG 4" PERFORATED IRRIGATION PIPE 2" X 6' LIVE WILLOW WATTLE LIVE WILLOW 1" DIA. STAKE RESERVOIR SWALE WETLAND GRASS SEED MIX STREAM CHANNEL COMPOST SOIL AMENDMENT TO 12" DEPTH TERRACED SUB GRADE SECTION 1)1,100' PROPOSED MITIGATION AREA IS IN -KIND REPLACEMENT FOR APPROX.100 SF IMPACT AREA AT A 1.5 TO 1 REPLACEMENT RATIO 2) LIVE WILLOW STAKES AND WATTLE MATERIAL WILL BE LOCALLY COLLECTED 3) WATTLES WILL BE THOROUGHLY INCORPORATED INTO THE SOIL SURFACE 4) PERFORATED PIPE WILL BE WRAPPED N A SILT SOCK WITH PERFORATIONS ORIENTED TO THE TOP SIDE 5) SOURCE OF IRRIGATION WATER SHALL BE AFTER TREATMENT IN A WET VAULT ONLY 6) SLOPE SHALL BE TERRACED AND ROUGHENED AS SHOWN PRIOR TO PLACING TOPSOIL 1) TOPSOIL SHALL CONSIST OF THE NATIVE SOIL MIXED WITH 30 PER CENT BY VOLUME AGED COMPOST 8) A ONE -YEAR MONITORING AND CONTINGENCY PLAN SHALL BEGIN AFTER CONSTRUCTION. NOTES 0 20 40 SCALE 1'- 20' . N,:5 SHAPIRO �.- k £SSOCIATIS. INC. LI1" IIN RY WETLAND MITIGATION FLAN QUICK PARK OF WASHINGTON I;� �' 0 Z000 RECEIVED CITY OF TUKWILA PERMIT CENTER RECEIVED CITY OF TUKWILA ' PERMIT CENTER SHEET 1 OF 1 hilAY 26, 2000 1II1i111)Iliffi.1 llili L. i 1 O IIIIIIiII�IIIIIIIIII_ I11111UII1IIIIIIIIIIIIIIhIIIII' llllllllllllllllll�lllllllil�liill) iii�ijill l�i i(�i��iI�iii�_ ,.•""'",,,10.• • . 1 Aid; •. 1 ■■• '^0.1.1.::" . , . al L.. l• .°••• -1/11Lizi;'- 2••-''' La•Mirt. k .. , . . ., ..a. -.., i. ' , „'"•::.0 qiin: 4,1y.0•1/4"-ATallii7L,rv, ,e , "' -1110*.iriii. •*.J,IP-.-til:..-6 , ; 47." ;T14r A.tr_ ''' .. f-1-"-111,11- ' , .' 7 -r- ' ' "19 ar117C4" [ t 1 d-. ,•. 4cr rm 00. . ..;-4$. ir,:."7j• 4. ,i/ , 'mg Jurseit . ,4` • ' * .: Tglielumr'.. I: ';`...4 '1.r.,Ti7....77. ...ri, 4- . • '.-. i-.11 ,ii, ..x.," • 1',..;-'0•4: ..,„ • ... ,w,,,,,.,:::. „..... .4..•,1 i '' ..iii 1 .. • ' Artill: .41171107 'ram.s 1 . ,..--Iparin rim "'".-7911171.,;,•_.'" - , § .-7,'-.4 . ., 0 ,,, itl !..; • k.-.3 r.,.!,..'F • - A 1..;;; •-r - , i,• .. ,0•,k; .I, . II, "•if ii.E.mad,‘ ,•:4-, ' L-49%10- ' k -_.`f• 1 111 1 f""' ; ' . , ' •••••""" 117Pff - lle- VII P.,,,,r ..1 . ,- - , • ,,,::,,,, ;.;,,Ic •'41 AN d"." -•4'.:*4.1bd 7071711‘. . ile' dr. , i ••;' TM ni..7 twi,i'' ltrtiell .":17•Fl.A1-,•.;•.^.'2...1%, I IN A ' , "" • i V 0 • - , Z. .._, . . .. .... : :..: • 101 "Nr-77.•,,r..: ,. lit i—" prin 7 i , 41.19 03A19032;1 • ; • • ; „ • • -.f; 5 r i 6 g V 1777171 J.? 4.1 : - ; :1 -.1 : I 0 „.1111111ii 11111111) WWI IIIIIIIIIIIII111111110111 111111111 IIIIIIIII,IIIIIIIIIIIiii111111111'1111j111111111111111111111101 . _ . 0 10 20 30 40 SCALE: r • 20' OR SEE LANDSCAPE P OUT LAN FALL AREAS, 74 or TYPJ AREA SUS 0 7.1 0 0 � es pies dl' 2 - r . T hssbsk/IF Wee toidl Wood C24* minl ooze nroararklN wen ede ro h Mitred di Two nbb.r how a1 pa to of *Woof to trek ben SW High • oak 2 VT *Ail' rr stale rid :471113 Cut 6 604 11 P18114 , from ro remove (n 1op 1//2 of (burlap to be rottaNd 1.4 re no lob finder` TREE PLANTING DETAIL Balled 6 burbpp.d or conton.rir.d plmt as Cut 6 remove burlap from lop 1/2 of bal Ibrkq to be bona/.( MT 70 .GIN 2 V2 ek nigh or orb 103 It" rhos Fiish . ode HALL OW 1:41 SHRUB PLANTING DETAIL P107 TO ICALI Note: Bose drawing provided by Perteet Engineering, Inc. Cut 6 remove burlap from top 1/2 of boll (burlap to be rottoble) hovel Ow.) L� Finish • ode arii 11= 11 =h''' IB i t' 4,1 II bwilWIUAWRi72 voxistrat (ice ' trirS ar etwl. f CONIFEROUS TREE PLANTING DETAIL NOT 70 SCALE WETLAND SION NOTES Glue sign to 1/2" CDX plywood end attach to 6' 001' ceder or pressure tinted poet with ammo lsg bolt set pat minImum 3' below grids. Wetland Non to art at.ppmdm.tsy 6' height above finish grade. The oat sndfatream. gn shall be potted at boundary between the SenmN.. Area Buhr, Bet .ok Area or Setback Tract and the Bulking Meek Amu. One sign MN be posted No (attar scary 160' of Sinaloa Ana Buffer and shall be stationed In . prominent !melon, Ike, at the closest point to the proposed development Signs may also b..lached securely to fences. WETLAND SIGN DETAIL hortoru. \• 0 Inch • QNTY PLANTING UST PLANT NNE SIZE 4 D p g l o b F ' 4-6• rematmq rarer*/ 9 West rn Rd Ctrdr 4-6' Mit pleat• SFRl1BS O26 Redoder Dogwood O±5 BMalr n 23 Sods MWbwty LaMar' invokers O 0 Combs sfolonnrr. 16 I dal P &in Oinrsdi oenMkrMe 18 29 ?balsa Rove Rae mama 11 ,liAIlr SarWo.CaMnal area Rifts war .= 6 2S 68 Mk WNar Sally & febonsU Devon Rdd her/ Voce:Num oerum BIFFER AREA SFED MX (All buffer ro ddat rbed drkg.carotj b n:IZe Ngu b( E mu. Gnts � � F anus Sesdg Ms 310020 sq. test 25% IL Y • It Si :VI Li Lt. ; ,t: t71. .. Q _....L.- 5;- 5--'71 L L t 0 11 . 11111p1111111111111111111iBIp11111111114)i1i111- 61111111111111111111111111111111111111pp111111I611pIIlip11111111111111111pI11p1111Bi1mTI SPACING as taw as too 3-4• 48•04 4-6' to dun 2 goI. Woo. 5 pd. as shoo 24-36" 36b r: 24-36" 36'ac. 5cl. advsn 2436" 36'ac. 24-36" 36 ac. I Ni Notes: i. Mechorllcatly clear all blackberry within enhancement area. 2. Wetland edge,to be protected by sediment control fencing during clearing and planting. SEP 3 0 2072 B4welve Associates, Ina, 1103 WssMMeeker Street, Ste 0 Kra, Wa 110324751 213.114111 Fax 2114124712 REVISIONS 0_ z LL1 W c z oQ Y = U z W o w LI_ LL fY CO I J_ CO Job No. AO -177 Dbilgtted Br SE/ 131svm CUL Chinked by: Del: 9/30/02 SHEET OF 1 wit " tr o U PLANTING IN THIS AREA. 0 o a o o \\ may \\MA.M `O `- o° l�'(�� 0 0 i -3% N cN N • c IL t,.t_i.r i iri Cut 6 remove burlap from top I/2 of ball (burlap to be roltabie) PLANTING UST QNTY PLANT NAME SIZE *3 D 41.01FM Pseudofsup man:law : e Wsstun Rsd Csda' Thule plicate O 2115 Red -cskr Dogwood Como atolonfNre -� O 15 BIG* Horlhorn &lingua dougl�atl'.' i ava 25 Block Twt*erky' Lonkrninvolucre. ® 16 15 Irdm Plus OemNde nnatfomda 0 18 Red-llawerhg arrant Ribes sengineum O 21 22 Noora Rose Rose nutkena OlY 10 Op ae 17 Eve ssn HJddebny Vtccinium ovatum Ma Nankin Ash Saba! aitchensls 4-6' 4-6' 3-4' 4-6' 2gaL 5gc. 24-36• 24-36" 5 go. SPACING as show as shown Wax. as shown 49"x. as Yawn 36"o c. 36"ovc. as Ivan 24-36" 36 ac. BUFFER AREA SEED MIX (AU bfuafdfeerr area diskrbed dying aanst.) AA yroaros alb 25X Pawrial Rye Elmus 25Z Idaho tome e Festoon ldehoenala 25% Red Fiscus Featuce n,bre Seedrg rota 31b/1000 e4 feet Notes: I. Mechanically. clear all blackberry within enhancement area. 2. Wetland edge tolbe protected by sediment control fencing during clearing and planting. 2' x 2' hsslork /fir strike driven to rsfusd 124' oh soars to trss eidt nor c rodable sn setxusd in rshforad dJ pen ribber hoes at point of contact to trim �At Fnish .rode 0 01-1 1,f 1 1x411 berm fly's.) Sears to tree ahh naroerrerbla ire awed b nitorcod row rabbar boo' ot mood yea pats of 2 -Z, 2'haled/o-stem bas Ityp1 Frith •rode MIVA7 0tr —s Cut b remove lx.mlop 1 from to Abe of bal Itrrkp P be raltrbl e I 2 I/2' mks Mich �or starts straw pspriigg fdmttg. TREE PLANTING DETAIL farther 6 pladi g 2 R Mob • stria good 4. Top oal 6 farther CONIFEROUS TREE PLANTING DETAIL 1PfliiiTl St - Fi Lt Et t „i UL Q ,.L, ;;17,7-5-7.7: Ft L • L. i o; `. I,IIduN1NnliiuluNllnlli ilnn1lllt) ul1linluli1NNhul1uuluu1mdlnl1Nnluu1Nnluu1ullh11111m uulNBliulrnnllntl NOT TO SCALE WETLAND SIGN NOTES Glue sign to UT CDX plywood and attach to 6' 4"x4” cedar or pressure treated post with 5118x3" lag bolt Set post minimum 3' below grade. Wetland sign to sit at approximately 5' height above finish grade. The wetland/stream sign shall be posted at the boundary between the Sensitive Area Buffer, Setback Area or Setback Tract and the Building Setback Area. One sign shal be posted per lot for every 150' of Sensitive Area Buffer and shall be stationed in a prominent location, Le. at the closest point to the proposed development Signs may also be attached securely to fences. WETLAND SIGN DETAIL HOT 70 eeie Boted b brlWp d or Coniarierired "plant oe specified Cut b remove borIT from top I/2 of bcd (urlap to be rottobJel NOT TO 'CAA SHRUB PLANTING DETAIL NOT To KKALI Note: Base drawing provided by Perteet Engineering, Inc. 13-twelve Associates, Inc. 1103 West Mader Streit Mats C Kent, Wa 1/0324711 213411 .0616 Fax 213442.4732 REVISIONS AS-BUILT NOTE 11/71 © a a SRO - QUICK PARK BUFFER ENHANCEMENT PLAN Job No. .110 -177 Designed By Drawn By _` CMaked by Dent: SHEET OF 11/7/00 2 RECEIVED CITY OFmama MAR 1 9 200Z, PERMIT CENTER SRO Quick Park BUFFER AREA MITIGATION PLAN October 9, 2000 ).0 BUFFER MITIGATION CONCEPT AND GOATS 1.1 MITIGATION CONCEPT SRO Quick Pak is being developed adjacent to a mull abeam and wetland comic* Oat lies slag the western edge of the project. The storm is a Type 3 water, requiring a 15 :foot buffer wrier the City of Tukwila Code Title 18.45.040. A mull Type 3 wetland Ito along the eastern side of the stream near the central western edge of to project parking lot. Approximately 1601ineal fit Mention of buffer will be reduced to a minimum of 15 -het per Tukwila Code 18 .43. I/1.45.040A. Approxhmnty 1273 square feet of buffer win be reduce. Wbete the buffer is less than 23- feet, the buffer is being 'thawed u requited by the above Code section; therefore "pproximkly 4,637 square het of buffer is wing enhanced. 134 MITIGATION GOALS Gals of the mitigation plan are u follows: • To ethane appmxhntely 4,637 pure feet of buffet with a diverse mix of native treee and drubs. • To enhance the wildlife ansction of the buffer area through native plantings. • To potect'rata quality in the wethnd, stream, and buffer area by treating nom water from the new 'impervious surfaced of the project outside the batten. • To mute success of the project by monitoring the enhance buffer area for a period of twee yeas efkrinstaltadna • To protect the midpda act by setting aside the area in *perpetual sensitive area fitment and installing sensitive serer signage along the buffer at approximIly SO-foot pacing. • To protect the entire area of the rositive area by providing fencing along the watem edge ofthe project (eastern lop of the intuitive am) 24 CONSTRUCTION SEOUENc The construction sequence of this project will be implemented as follows: 2.1 Pretrubuetlon meeting 2.2 Construction staking 2.3 Construction fencing and erosion control 2.4 Clearing 2.5 Stabilization ofmitlptionurn 2.6 Plant material installation 2.7 Pemument fence and sip intallation 2.7 Construction inspection 2.8 Agency approval 2.9 Monitoring inspection mod Tenoning 2.10 Silt fence removal 2.11 Project completion 2.1 Pre-annotate-don Meeting A pre-construction meeting will be held on-site prior to commencement of construction, to include the Owner's biologist, the General Contractor, the Landscape Installer, and the Owner. The Owner shall notify the city two weeks prior to construction so that, at the city's discretion, the city may attend the pre- construction netting. The approved plans and specification will be reviewed to ensure slut all patties involved understand the intent of the construction documents, specifications, site environmental constraints, sequences, and inspection requirements. 2.2 Construction Staking The limits of clearing and grading of the mitigation area will be marked k the field by a licensed professional land urveyor prior to co ni ncement otconsmcdon activities. 23 Construction Fetctng & Erosion Control All erosion control measures adjacent to the nddgation area, including silt fencing and orange comouction fencing will be installed Erosion control fencing will rennin around to ntitipdon area until clearing and deeding are amide. Erosion control fencing will be placed on the wetland aide of to mitigation area during cleating and installation activities to protect the wetland, stream end buffer area outride the mtdpdon urn. Upon completion of plant material Installation, the erosion control fencing will be placed along the upland loge of the ends sensitive am, including the enhancement am 2A CTurhg The existing buffer area is dominated by blackberry and other non -native Invuive species. All noo-native invasive specks will be removed from the buffer enhancement area Due to the extent of the hleckbesry, em bankal meam my be used for removal. Individual trees will be protected to the extent that is practical. No chendas measures will be used without the specific authorization of the Owner's biologies and the City biologist. 2.3 Shbilleadm of Mitigation Ana All disturbed antes will be stabilized per Section 3 .4.2 with teed, nadch, or alternative mehod u approved by the City of Tukwila upon completion of grading. Orange aabuetion fencing and erosion control fenced will be emoted and placed armed the mitiption area u specified on the engineering plan. 2.6 Plant Material IutoDatMe All plant notarial will be planted by hand per deal) and Commotion and Mandan Noe. The Mitipdon Plan specifies the rapred size, 'pats, quantity, and location of plant enteritis to be knelled. The Lad'ape IMalkr will ranee or over-seed all seeded ems dstutbed during the putting process. Upon completion of the planting, the erosion control fencing will be restored and repaired. Plant substitutions or mudifiationa to locations shall be approved in writing, by the biologin prior to installation. 2,7 Sensitive Ares Shp Instanetlea Upon acceptance of the plant material installation by the biologist, Sensitive Area sips will be placed along the perimeter of the mitipdon areu or moods as noted on the Final Midption Plan. See initiation plan Sheet 1. 2.8 Construtlen Inspection Upon completion of installedon, the Owner's biologist will conduct an inspection to confirm proper implementation of the Midption Plan. My corrections, subedtutions or mining item will be identified in a "punch list". Item of particular importance will be soil in pis, pit size, plant species, plant size, mulch around pits, and tree staking. Upon completion of planting, if insnlladon or materials very significantly from the Mitigation Plan, the Landscape Installer will anbmit a reproducible "as- built" drawing to the Owner. 2.9 Agency Approval Following acceptance of the installation by the Owner's biologist, a letter will be prepared to the City of Tukwila requesting approve( of the installation. 2.10 Monitoring Inspection and Repelling The monitoring program will begin in August or September of the first growing season (approximately one year) following Mutilation approval by the City of Tukwila. The aub,equent monitoring Inspections will be conducted in accordance with the approved Monitoring Program. 2.I1Sitt Fence Removal The erosion control fencing will remain in place until the parking area adjacent to the sensitive area is stabilized with asphalt. • 2,12Projeet Completion If, after the final yens of monitoring, the project has uNafed the objectives and gods of the appmie Mitigation Plan, the Owner's biologist will prepare a letter to the City otTnkwila tequening final approval and closure of the mitigation plan. ,.0 CONSTRUCTION AND PLANTING NOTE 3.1 SITE PREPARATION 3.1.1 The landscape Installer will approve existing condition ofrubg ade prior to initiation of soy Mtiption installation work. The Landscape lonelier will ioform the Owner of any discrepancies between the approved construction document and casting conditions. 3.1.2 The General Contractor will Bag the limits ofciadng with orange caosmrdon fencing and erosion control fencing rd will observe these Wins doing consimtion. No natural features or vegetation will be disturbed beyond the designed "lints of ckrtng ". 3.1.3 The fandscepe•huslkr will mechanically trove all weedy species including scokh broom, blackberry YNIeDee, thistles and/or any other weed, daipmed to be moved by the nt(tiption plan. Gabbing of weeds, including toot -stock will be completed without the use of chemicals. Weed debris will be dispose off ate. 3.2 PLANT AND HABITAT MATERIALS 3.2.1 All pleat materiaa will be as specified i the plant schedule. anly visages pleas fkeofdefects, diaeuei and infestation are acceptable for installation. 3.22 All plan nrterlat will confrm to to studrdd and size requirements of ANSI Z60.1 "American Standstd for Nursery Stock ". All plum material will be native to the northwest, and preferably to Puget Sand Region. Plant misrule will be propagated (retentive stock; no cu(Nvnn or bonialtunl moieties will be allowed. All plant materials will be grown ftom misery stock unless otherwise approve. 3.2.3 All misery gown plant materials will be in eontainan or balled and burlapped. Bare root plaminp will be 'abject to approval. 3.2.4 All plant materials stored onaite longer than two (2) weeks will be oepolted in run and maintained by the Landscape Installer at no additional cat to the owner. Plzen materials temporarily stood will be subject to inspection and approval prior to installation. 3,2.5 Subedtudon request" oast be submitted in writing to the Omer and approve by the Owner's biologist in writing prior to delivery to site. 3.2.6 All plain arterials will be dug, packed, transported and bulled with earn to ensure protection from injury. All plant nuterial to be gored on site more than 24 houn will be heeled into topsoil or sawdust. Precautionary manures shall be taken to ensue punt arterials do not dry out before planting. Buffer piam will be shade and nitrated until time of installation. Immediately after httellation the mtitipdon planting area will be saturated to avoid capillary stets. 3.2.7 The Landscape lnssller will verify all plant mortal, quantities shown on the pluming plan, and the plant schedule. The quantity of plant materials shown on the pun takes precedent over the quantity on the plant list. 3.2.8 All habim femme will consist of native tree and stump material that meet the specifications ahown an the plan. 3.3 PLANT AND HABITAT MATERIAL INSTALLATION 3.3.1 All plan nod habitat materials oast be inspected prior to installation to vMfy conformance of the materials with the plant schedule including size, quality and quantity. Any plant materials deemed unsatisfacion will be rejected. 3.3.2 All plant materials delivered and accepted should be punted immediately, following instillation of the habitat failures depicted on the plan. Pitt material, not planted within 24 hour will be haled -in per note 3.2.6. Plant materials sued under tempomry conditions will be the sole responsibility of the Landscape Installer. Plans will be protected et all times to prevent the root bail from drying at before, during, or after Putting. 3.3.3 All planting pits will be eirculu with vertical aides and will be sized pa detail on the mitigation plan. The pits will be filled with onaite native soils amended with 313% compost soils. 3.3.4 No fertilizers will be used within the wetland. In buffer areas only, install "Agrifam ", or equal pIm fertilize-me all planting pita u specified by manufacturer. Perdlizen are allowed only below grade in the Mandel pits to the buffet area. No menthe sludge fertilizer ( "SteetCo" or "Gtowco ") is allowed in the ntidptlon am. 3.3.3 An coalabweloed plant menials will be tenured from their conshem until to prevent dour to the plant and is roots. Plants removed from their containers will be punted immediately. 3.3.6 All plea nterals wgl be puce u atom on the approved mitigation plan. If the final installation varies from the approved nttlpten plan, the landscape Installer will provide a reproducible mylu u-bunt of Abe knelled condition. 3.3.7 An conifer tors will be make per the detail on the mitigate plat All deciduous ten 1" super ad seer will be staked pan the detail on the ndtiplloa plan. Remove tree asking and guy win from all ne a after one yaw. Cm py wires away from trees and repave wire and tree robs from site. 3A PLANTING SCHEDULE AND WARRANTY 3.4.1 A fall-winter kasltatlon achedule.(October 1" - Marsh law ) is preferred for lower mortality rotes of new eluting. If irrigation is required under Section 4.3 during the Mt year after pant iaslhdon, the the rummer months. planting will be 'tripled Mth a tempera), automatic The automatic hriptionn system will head to hnddcncoveeaggnn�of the emtke planting am. TM rnarnatic controller win be iheduled for a midterm of fifteen (13) minutes every dry until fill mina can provide adequate Mehl!** support the punt maOriel The midpten plantings Mil be watered twke s day for fifteen (15) minutes for the first week. Hand- watering may be allowed ifpentdOed in writing by the Owner' biologist end the City of Tukwila. 3 .4.2 All dlnubed areas will be =itched or seeded with mixes u specified on the plans u soon as the ndtiption ores grading is complete. The seed moat be geminated and a pan aver established by October 1 ". lithe cover is not adequately establWed by October 1 ", exposed sots will be covered with approved anion control Instead and the lathe -ape Installer will notify the Owner in writing of alternative soil mbllsation method wed. 3 .4.3 The Waller will warrutt all Pant materials to remain healthy and alive for a petiod of one year after find acceptance. The instller will replace all dead or unhealthy plant arterials per the approved plans and "peel0cetime. 3.5 SITE CONDITIONS 3.31 The Itwtallet will cootdtnae with the Owner and the bloegiat for construction scheduling, 3.3,2 Mont bitsllatlon will begin After the agency acceptence of gilding end construction of the private driveway and the atom outfit! Smithy. The Ownu will notify the biologist of acceptance of final clearing. 3.53 Silt fences will be instilled as shown on the approved mitigation grading plan. The installer Is nepondible for rpdr and replacement of silt fence' dumbed during punt installation. No equipment or mils will be stored inside the milt fences or within the protected buffer am. 3.5.4 After cleaning is complete in the nddpdon area, mooed lots will be mulched. Orange cesunucdon fence will be place ground the mitigation area to prohibit equipment and penomel in the mhtpdon area. _ 3.5.5 All plant material wilt be planted with actable soil per planting detail". Soil, from Minting hole will be prod and smoothed serest the mitigation am. 4I MAINTENANCE PROGRAM INTRODUCTION T1ds irioresence program outlines the program, procedures and gal for Mdption of the buffer impacts at to 011O-Qukk Path mitigation rite. This mslemace program will be to tesponsRdlity of the project owners throughout the duration of the eaasorlq period. The mammon contractor will complete the work u outlined below. 41 MAINTENANCE WORK SCOPE 4.1.1 The primary goal of the mitipdon plan is to mere wetland buffer by removing the blackberry and planting native plans in the buffer an typically food in undututbed stream bnfen. To accomplish this goal, nom' landscaping methods must be modified to Include: s. No rowing oe Morning aground cover or vegetation in the ndtiption area. b. No plowmen of fertilizers k de ndtlpdon tree. c. No placement of bade nadeh or equivalent k to mitipten area, except as noted in the planting details. d. No placement of gnus clippings, landscape debris, fill or ornamental plant mtetiah in the nidption am. 4.1.2 Work to be included in etch site visit: a. Remove all litter inchding paper, plastic, bottles, construction debris, yard debris, etc. b. Remove all non•ndve, invasive and notion vegetation including blackberry writhe', thistles, tansy taped, scotch broom, etc. Remo' ell vegetation, particularly teed canny grass, from the planing circle or inside the drip line of the plan, whkhever is larger, adjacent to the Walled strut and ben. All removal of vegetation is to be conducted by hand without the we of pesticides or chendcals. All debris is to be removed Prom site and dispose in an approved landfill. Refs to agency list of noxious weeds for Anther intonation. e. Repair silt and/or pemnanent fencing and dgnge u needed. 4.1.3 Work to be completed on an annual balls includes: a. Replace dead or faikd plan materials. Replacement plenaop are to be of sane specie, size and location as orient plantings. Plantings are to be installed during the dormant period. b. Remove tree staking and guy wires from all trees after one year. 4.2 MAINTENANCE SCHEDULE The Owner will conduct all item listed in the Maintenance Work Scope two times per yens. Additional work maybe require per the Monitoring Report and u approved by the agency. Additional work my include removal of the grasses wound tech shrub and tmce, installation of wood chips at each throb and tree base, m eedlg the mitigation aea, re- staling existing tees and erosion control protection. 4.3 WATERING MONUMENTS 4.3.1 A hupmny irription •ysem will be required If the pleas are installed between Match 15 and Oclnber 15 of the saltation year. The temporary irripdon system may be remove after one year of mothering ering at the approval of the agency providing the plantings are established and acclimated to onaite conditions per Construction and Punting+Notes Sec. 4.0. 4.3.2 Irrigation will continue from Initiation though October 1 ", or between Tune 1" and Oet. I" for any subsequent year. leiptio, ifr uired, will provide had to had coverage for 15 mimeses per day every day. 4.3.3 Hand -wineries of the mitigation area may be allowed, if permitted in writing by the Owner's bioegiet and the City of Tukwila. 4A QITSROUT OF THREE YEAR MONITORING PROGRAM Upon complete of the monitoring prKram and acceptance of the buffer m(dption by the agency, the maslenmce of that project will be reduced to include removal of utter and debris, tepatr of perimeter fining mid 'Igor, removal erections weeds and undesirable vegetation, and rent of vandalized areas. 5.1 SAMPLING METHODOLOGY Ting restored boffin am will be monitored three times over a dumper period Monitoring will be coudseled in Yam 1, 2 and 3 of the monitoring period. Monitadeg will be conducted wing the techniques ad pUCIdaN described below to quantify the survival, relative health and growth of punt merial as well u the aucashl attention of an area meeting buffer vegetation criteria. A monitoring report abmke at the end of the year ofetch monitoring yea will describe and qu entfy the status of the mitigation at that thee. The agendas ad wildlife will be monitored during one site visit conducted during the annul monitoring she visit of each monttadng yean. • 5.1.1 Vegetation The mgatltioe monitoring will consist of inspection of the planted material to determine the health and vigor of the lulelsdon. All the plated material in the mitigation area will be tmpected during each monitoring visit a delmnlne the level of survival oft the installation. 3.1.3 Wildlife Visaed °bNrvadona of all wildlife specie' noted during the monitoring will be recorded. 5.2 STANDARDS OF SUCCESS • Bvahutlon of the success of the mldptie project will be baud upon the following survival rates for all planed woody vegetation at the end of each monitoring year. o Year 1- 100%auMval o Year 2-90% strand o Yenr3- 10%urinal • The buffer ntNption project will enhance 4,637 square fat of buffer. • Vohmleet native, nots•Invasive species will be include as acceptable conponens of the mitiption. • Success of the mitipdon within the buffer will be determined by 80% arrival of the planed meterui and 80%, or greater, ground cover of herbaceous vegetation at the end of Year 2 53 TIMING AND REPORTS Monitorial win be completed u follows: Monitoring Vegetation Wildlife Report • Year* 1 Augwt Augwt September30 2 August August September 30 3 August Amt September 30 • Monitoring will begin in one year after tint PoII growing season. The specific dmettami my be adjusted to reflect actual approve' of installation with the uthorWdon of the City biologist. 5,4 CONTINGENCY PLAN A contingency plan can be implemented if necesury. Contingency plans can include regrading, additional plum hWallatlon, rite maintenance schedule, erosion control, and plot substitutions including type, size, and location. If the metering teals Indiate that my of the performanoe standards are not being met, it maybe mecum a 'spirant all or put of the contingency plan. Cuethb attention to maintenance is essential to enure that problem do not arise. Should any pan of the site fail to mast the access criteria, a contingency plat will be developed and implemented with the City of Tukwila approval. Such plans an prepared on a car -by-au bus to reflect the failed m(dpdon characteristics. Specific condition' that could require development of a contingency plan my include bur ate not limited to: • Paikn of the tddgatlon project to meet the standards for plain ntvival and coverage Identified in Seethe 5.2 Standards of Success. • Fathers of the Minces project to enhance 4.637 square feet of wetland buffer. • Faib a of the nddptlon area dos to dominance of volunteer non•ntive, invuive species. Contingency/minima= activities will include, but one not limited to: • Repining an plus lost to vendatlmn or mortality at the end of to Year 1. • Sebadadkg any plant spooks with a 13 percent or greater mortality ram at the end Tar I with a Ikeda pecks approved by to City of Tukwila Substituted pins will be installed in the same gautta and location u shown on the approved Final Mitigation Plan. • Tempter/ Manion of the buffer ndtiption area my be requied u necoury during dry weather If plants "ppm to be too dry during any site visit of the monitoring. Irrigation will be provided u need in Section 4.3 Watering Requirements. • Reseeding the festered buffer non with an approved gnu mixture as actuary if crosiers/sedimentation man. • Removing all tub or 'Meltable debris from the buffer mitigation area as required in Section 4.0 Maintenance Program. AGENCY APPROVAL: City of Tukwila 1. The applicant will post • Mitipdon Performance Suety base upon of the cost of the innalladon and three years of monitoring, in the amount of $ with the City of Tukwila in the event that shendtipdon installation is not completed prior to the issuance of certificate of occupancy (CO) for the project. 2. Final inspection shall be perforce by 13-twelve Associates, Inc. Installation will be completed per Buffer Mitiption Plan prepared by B- twelve Associates, Inc. dated or as subsequently revised by proper auttotity. Ile plan is not approved fo contortion unless noted in this approval block. 3. Upon notification of project completion, 13- twelve Associates, Inc. will pique a final inspection report. Upon acceptance old* project, a letter requesting the conventon of the Mitigation Performance Surety to • Maintenance Suety will be sat to the City of Tutuila. 4. Et-twelve Associates, Inc. will conduct a three-year monitoring program. The site will be evaluated wing standardized tests and procedures u noted on them plans. A report will be prepare and subndtted to the City of Tukwila for review and approval according to the approve monitoring schedule each year during the monitoring cycle. Upon approval of the foul monitoring report or'vhen the mitigation is deemed maceufW, whichever is btu, the City of Tukwila will release the Maintenance Surety. APPROVED AS DESIGNED City of Tukwila, Washington DATE , 'i,ia71,1 r717-4l,1a: 1 sin` el Lt LI t,.t. • -n ..• 0. •L . t . - fS :.IIj 6 E t o III 4111III0011I1111111�IIIIIIIII6 4111�1I1111111�IIIIIIIII1IIIIIl111�IIIIIIIII�IIII111111IIIIII0110011011000l1pll 0 110010 t liA 84uwlva Agsoohhg, Inc. 1103 West MNkr Street, euil• C Kart, Wa 100324711 213404111 Fax 213 412 413 2 REVISIONS Job No. Dul6nsd By: Drawn By: Chinn by: Dona: SHEET OF A0-177 SB CML 4/5/01 CITY OF TUK uNtvlu MAR 1 9 2002 PERMfr°ENTER '