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HomeMy WebLinkAbout2019 - Declaration of Covenant for Inspection and Maintenance of Stormwater Facilities and BMPS - Chick-fil-A / City of Tukwila - 20190201000379Return to: City Clerk City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98188 111111111111111111111110111111111111111 20190201000379 COVENANT Ftec:$125.00 21112019 12:13 PM KING COUNTY, WA DECLARATION OF COVENANT FOR INSPECTION AND MAINTENANCE OF STORMWATER FACILITIES AND BMPS Grantor: Chick-fil-A, Inc. Grantee: CITY OF TUKWILA, a municipal corporation of King County, Washington Abbreviated Legal Description: POR SE 1/4 OF SW 1/4 - BEG SE COR SD SUBD TH N 87-45-57 W 481.05 FT TO W MGN SOUTHCENTER PARKWAY TH N 11-59-33 W 830.58 FT TH CONTG ALG SD W MGN ON CURVE TO RGT RAD 991.37 FT ARC DIST 227.28 FT THRU C/A 13-08-08 TH N 01-08-35 E 74.95 FT TO TPOB TH N 88-51-25 W 69 FT TH N 01-08-35 E 12 FT TH N 88-51-25 W 38 FT TH S 01- 08-35 W 12 FT TH N 88-51-25 W 161 FT TH S 01-08-35 W 168 FT TH N 88-51-25 E 272.38 FT TO W MGN SOUTHCENTER PARKWAY TH NLY ALG SD W MGN TO POB. Assessor's Tax Parcel ID No. 262304-9066 IN CONSIDERATION of Public Works final inspection for City of Tukwila Permit No. 017-0313 relating to real property ("Property") described in Exhibit "'A" attached hereto and by this reference incorporated herein, the Grantor, the owner in fee of that Property, hereby covenants with the City of Tukwila, a municipal corporation of the State of Washington, that it will observe, consent to, and abide by the conditions and obligations set forth and described in Paragraphs 1 through 10 below with regard to the Property, and hereby grants an easement as described in Paragraphs 2 and 3. Grantor hereby grants, covenants, and agrees as follows: 1. The Grantor or it's successors in interest and assigns ("Owners") shall, at its own cost, operate, maintain, and keep in good repair, the Property's stormwater facilities and best management practices ("BMPs") identified in the plans and specifications submitted to the City of Tukwila for the review and approval of Permit No. D17-0313. Stormwater facilities include pipes, catch basins, storm filters, swales, and other engineered structures designed to manage stormwater on the Property. 18363.012.doc Page 1 of 25 D17-031 3 2. The City of Tukwila shall have the right to ingress and egress over those portions of the Property necessary to perform inspections of the stormwater facilities and BMPs and conduct other activities specified in this Declaration of Covenant and in accordance with City of Tukwila Code ("TMC") 14.30.80. This right of ingress and egress, right to inspect, and right to perform required maintenance or repair is provided for in Section 3 below. 3. If the City of Tukwila determines that maintenance or repair work is required to be done to any of the stormwater facilities or BMPs, the Director of Public Works ("Director") shall give notice of the specific maintenance and/or repair work required pursuant to TMC 14.30.80. The Director shall also set a reasonable time in which such work is to be completed by the Owner. If the above required maintenance or repair is not completed within the time set by the Director, the City may perform the required maintenance or repair, and hereby is given access to the Property, subject to the exclusion in Paragraph 2 above, for such purposes. Written notice will be sent to the Owner stating the City's intention to perform such work. This work will not commence until at least seven (7) days after such notice is mailed. If, within the sole discretion of the Director, there exists an imminent or present danger, the seven (7) day notice period will be waived and maintenance and/or repair work will begin immediately. 4. If at any time the City of Tukwila reasonably determines that a stormwater facility or BMP on the Property creates any of the hazardous conditions listed in TMC 14.30.80 and herein incorporated by reference, the Director or equivalent municipal successors official may take measures specified therein. 5. The Owner shall assume all responsibility for the cost of any maintenance or repair work completed by the City as described in Paragraph 3 or any measures taken by the City to address hazardous conditions as described in Paragraph 4. Such responsibility shall include reimbursement to the City within thirty (30) days of the receipt of the invoice for any such work performed. Overdue payments will require payment of interest at the current legal rate as liquidated damages. If legal action ensues, the prevailing party is entitled to costs or fees. 6. The Owner is hereby required to obtain written approval from the Director of Public Works prior to filling, piping, cutting, or removing vegetation (except in routine landscape maintenance) in open vegetated stormwater facilities (such as swales, channels, ditches, ponds, etc.), or performing any alterations or modifications to the stormwater facilities and BMPs referenced in this Declaration of Covenant. 18363.012.doc Page 2 of 25 7. Any notice or consent required to be given or otherwise provided for by the provisions of this Agreement shall be effective upon personal delivery or three (3) days after mailing by Certified Mail, Return Receipt Requested to the address listed below for that party: City Clerk City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98188 Chick-fil-A, Inc. 17333 Southcenter Parkway Tukwila, WA 98188 8. With regard to the matters addressed herein, this agreement constitutes the entire agreement between the parties, and supersedes all prior discussions, negotiations, and all agreements whatsoever whether oral or written. 9. This Declaration of Covenant is intended to protect the value and desirability of the real property described in Exhibit "A" and shall inure to the benefit of all of the citizens of the City of Tukwila. This Declaration of Covenant shall run with the land and be binding upon Grantor and Grantor's successors in interest, and assigns. 10. This Declaration of Covenant may be terminated by execution of a written agreement by the Owner and the City of Tukwila that is recorded by King County in its real property records. IN WITNESS WHEREOF, this Declaratio$n g,Covenanti for the Inspection and Maintenance of Stormwater Facilities and BMPs is executed this day of `.00,0411.4100 STATE OF WASHINGTON ) )ss. COUNTY OF KING ) OR Authorized Signature I certify I know or have satisfa • ry evidence that is the person who appeared before me, and said person ackn s ledged that he signed this instrument on oath stated that he was authorized to execute the instrument = d acknowledge as the of Chick-fil-A, Inc. a Profit Corporation, to b the free and voluntary act of such party for the uses and purposes mentioned in the instrument. Dated: 18363.012.doc Notary Public and for the State of Washington residing at My appointment expires Page 3of* ZS CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT CIVIL CODE § 1189 C�C/%��C�C�C�Ya�r/�C�<��R/: C�C�C�r�r .��C��C/4�C�.��C/-'C�c�CrC�c�c�C�c�C�C�r�C��r�C�C�C�C���<�r/: rte• A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is attached, and not the truthfulness, accuracy, or validity of that document. State of California County of 02Arkza On I28 2o1`! before me, r& E VW l 1T, 0(4L -4c.. Date Here Insert Name and Title of the Officer personally appeared 1)00 t Name(s) of Signer(s) who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument. I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct. ..1j .BETH E. WITT Commission # 2138085 i , 3 Notary Public - California 2 Z a County -. Orange Coun Comm. Extres Dec 222019 Place Notary Seal Above WITNESS m , - . • and official seal. Signature Signature o • taty Public OPTIONAL Though this section is optional, completing this information can deter alteration of the document or fraudulent reattachment of this form to an unintended document. Description of Attached Document Title or Type of Document: Document Date: Number of Pages: Signer(s) Other Than Capacity(ies) Claimed by Signer(s) Signer's Name: ❑ Corporate Officer — Title(s): ❑ Partner — i I Limited ❑ General ❑ Individual El Attorney in Fact El Trustee ❑ Guardian or Conservator 0 Other: Signer Is Representing: Named Above: Signer's Name: 0 Corporate Officer — Title(s): ❑ Partner — ❑ Limited 0 General ❑ Individual ❑ Attorney in Fact 0 Trustee ❑ Guardian or Conservator El Other: Signer Is Representing: L4�;4�✓4✓4�✓4�,4ti:4'ci4`y.'a.'✓•4�✓4�✓4`.�.4v4�4��4�,Y•4�4�✓, :'✓.�4�4�4�4�4�✓4`%4 �,�✓4. ✓4�✓4" 4�✓4✓4\✓4✓'h�'4�✓'.�✓.4'citi4�✓,4�✓,4v4✓4�✓4U4. ©2014 National Notary Association • www.NationalNotary.org • 1 -800 -US NOTARY (1-800-876-6827) Item #5907 DATED this . q day of 'JCu1itCV A , 2019. CITY OF TUKWILA, W Henry Ha , Publi Works Director INGTON Date: 1— STATE STATE OF WASHINGTON ) ) ss COUNTY OF KING ) On this dC) day of --.1Gtrickar`1 , 2019 before me, the undersigned, a Notary Public, in and for the State of Washington, duly commissioned and sworn, personally appeared Henry Hash, Public Works Director, and said person acknowledged that he signed this instrument, on oath stated that he was authorized to execute the instrument and acknowledged it to be the free and voluntary act of such party for the uses and purposes mentioned in the instrument. WITNESS my hand and official seal the day nd year firstrs/above written. t U.////tilt Earle 18363.012.doc OTARY PUBLIC in and for the State of Washington, residing at: --"F-A-44,011CA, My appointment expires: (9$1 q /d Page 4 of 25 EXHIBIT "A" LEGAL DESCRIPTION OF PROPERTY THAT PORTION OF THE SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 26, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: BEGINNING AT A POINT ON THE WEST LINE OF SAID SUBDIVISION DISTANT NORTH 00°50'36" EAST 819.01 FEET FROM THE SOUTHWEST CORNER THEREOF; THENCE NORTH 85°08'34" EAST 255.03 FEET TO THE CENTERLINE OF A RAILROAD EASEMENT DESCRIBED IN INSTRUMENT RECORDED NOVEMBER 9, 1977 UNDER RECORDING NO. 7711090221; THENCE NORTH 00°19'15" EAST ALONG SAID CENTERLINE 20.72 FEET TO A POINT OF CURVE; THENCE CONTINUING ALONG SAID CENTERLINE ALONG SAID CURVE TO THE RIGHT HAVING A RADIUS OF 410.28 FEET THROUGH A CENTRAL ANGLE OF 33°24'54" AN ARC DISTANCE OF 239.28 FEET; THENCE LEAVING SAID CENTERLINE SOUTH 88°51'25" EAST A DISTANCE OF 34.64 FEET; THENCE SOUTH 01°08'35" WEST A DISTANCE OF 198.66 FEET; THENCE NORTH 86°40'03" EAST A DISTANCE OF 274.13 FEET TO THE WEST MARGIN OF SOUTHCENTER PARKWAY; THENCE NORTHERLY ALONG SAID WEST MARGIN TO THE NORTH LINE OF SAID SUBDIVISION; THENCE WESTERLY ALONG SAID NORTH LINE TO THE NORTHWEST CORNER OF SAID SUBDIVISION; THENCE SOUTHERLY ALONG SAID WEST LINE TO THE POINT OF BEGINNING; EXCEPT THAT PORTION THEREOF LYING WESTERLY OF THE FOLLOWING DESCRIBED LINE: BEGINNING AT THE NORTHWEST CORNER OF THE SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SAID SECTION 26; THENCE SOUTH 87°55'53" EAST ALONG THE NORTH LINE OF SAID SUBDIVISION A DISTANCE OF 373.22 FEET TO A POINT THAT BEARS NORTH 87°55'53" WEST 286.00 FEET FROM THE CENTERLINE OF SOUTHCENTER PARKWAY AND THE TRUE POINT OF BEGINNING OF SAID DESCRIBED LINE; THENCE SOUTH 01°41'39" WEST 54.76 FEET; THENCE SOUTH 04°34'26" EAST 50.16 FEET; THENCE SOUTH 12°28'30" EAST 33.38 FEET TO THE CENTERLINE OF A RAILROAD EASEMENT DESCRIBED IN INSTRUMENT RECORDED NOVEMBER 9, 1977 UNDER RECORDING NO. 7711090221; THENCE SOUTHWESTERLY ALONG SAID CENTERLINE ON A CURVE TO THE LEFT, THE CENTER OF WHICH BEARS SOUTH 42°01'11" EAST HAVING A RADIUS OF 410.28 FEET AN ARC DISTANCE OF 341.28 FEET THROUGH AN CENTRAL ANGLE OF 47°39'34"; THENCE SOUTH 00°19'15" WEST ALONG SAID CENTERLINE A DISTANCE OF 20.72 FEET TO THE TERMINUS OF SAID DESCRIBED LINE; AND EXCEPT THAT PORTION DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 26, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: BEGINNING AT THE SOUTHEAST CORNER OF SAID SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 26; 18363.012.doc Page 5 of 25 THENCE NORTH 87°45'57" WEST ALONG THE SOUTH LINE OF SAID SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER A DISTANCE OF 481.05 FEET TO THE WEST MARGIN OF SOUTHCENTER PARKWAY; THENCE NORTH 11°59'33" WEST ALONG SAID WEST MARGIN A DISTANCE OF 830.58 FEET; THENCE CONTINUING ALONG SAID WEST MARGIN ALONG A CURVE TO THE RIGHT HAVING A RADIUS OF 991.37 FEET AN ARC DISTANCE OF 227.28 FEET THROUGH A CENTRAL ANGLE OF 13°08'08"; THENCE NORTH 01°08'35" EAST ALONG SAID WEST MARGIN A DISTANCE OF 74.95 FEET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 88°51'25" WEST A DISTANCE OF 69.00 FEET; THENCE NORTH 01°08'35" EAST A DISTANCE OF 12.00 FEET; THENCE NORTH 88°51'25" WEST A DISTANCE OF 38.00 FEET; THENCE SOUTH 01°08'35" WEST A DISTANCE OF 12.00 FEET; THENCE NORTH 88°51'25" WEST A DISTANCE OF 195.64 FEET TO THE CENTER OF A RAILROAD EASEMENT; THENCE NORTHEASTERLY ALONG SAID RAILROAD EASEMENT ON A CURVE TO THE RIGHT, THE CENTER OF WHICH BEARS SOUTH 56°15'51" EAST HAVING A RADIUS OF 410.28 FEET AN ARC DISTANCE OF 102.00 FEET THROUGH A CENTRAL ANGLE OF 14°14'40'; THENCE NORTH 12°28'30" WEST A DISTANCE OF 33.38 FEET; THENCE NORTH 04°34'26" WEST A DISTANCE OF 50.16 FEET; THENCE NORTH 01°41'39" EAST A DISTANCE OF 54.76 FEET TO THE NORTH MARGIN OF SAID SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER; THENCE SOUTH 87°55'53" EAST ALONG SAID NORTH MARGIN A DISTANCE OF 250.00 FEET TO THE WEST MARGIN OF SOUTHCENTER PARKWAY; THENCE SOUTH 01°08'35" WEST ALONG SAID WEST MARGIN A DISTANCE OF 211.33 FEET TO THE TRUE POINT OF BEGINNING; (ALSO KNOWN AS PARCEL B, CITY OF TUKWILA BOUNDARY LINE ADJUSTMENT RECORDED NOVEMBER 29, 1978 UNDER RECORDING NO. 7811290697); AND EXCEPT THAT PORTION DESCRIBED AS FOLLOWS: THAT PORTION OF THE SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 26, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, IN KING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS; BEGINNING AT THE SOUTHEAST CORNER OF THE SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 26; THENCE NORTH 87°45'57" WEST ALONG THE SOUTH LINE OF SAID SOUTHEAST QUARTER OF THE SOUTHWEST QUARTER A DISTANCE OF 481.05 FEET TO THE WEST MARGIN OF SOUTHCENTER PARKWAY AS ESTABLISHED IN KING COUNTY RECORDING NOS. 6343862, 6343863, 6343865, 6343867 AND 6343868; THENCE NORTH 11°59'33" WEST ALONG SAID WEST MARGIN A DISTANCE OF 830.58 FEET; THENCE CONTINUING ALONG SAID WEST MARGIN ON A CURVE TO THE RIGHT, HAVING A RADIUS OF 991.37 FEET, AN ARC DISTANCE OF 124.78 FEET THROUGH A CENTRAL ANGLE OF 07°12'41" TO THE TRUE POINT OF BEGINNING; THENCE SOUTH 86°40'03" WEST A DISTANCE OF 274.13 FEET; THENCE NORTH 01°08'35" EAST A DISTANCE OF 30.66 FEET; THENCE SOUTH 88°51'25" EAST A DISTANCE OF 272.38 FEET TO SAID WEST MARGIN OF SOUTHCENTER PARKWAY; THENCE SOUTHERLY ALONG SAID WEST MARGIN ALONG A CURVE TO THE LEFT, THE CENTER OF WHICH BEARS NORTH 85°45'26" EAST HAVING A RADIUS OF 991.37 FEET AN ARC DISTANCE OF 9.31 FEET THROUGH A CENTRAL ANGLE OF 00°32'18" TO THE TRUE POINT OF BEGINNING. 18363.012.doc Page 6 of 25 1=20'MAINTENANCE EXHIBIT Exhibit "B" Stormwater Pollution Prevention Plan for Chick-fil-A Permit No. D17-0313 Site Address The site address is 17333 Southcenter Parkway, Tukwila, WA 98188. Assessor's Tax Parcel No. 262304-9066 Plan Goal The goal of the plan is to treat all on-site runoff for water quality by directing flows to a modular wetland and oil -water separator for treatment. Preventative BMP's The catch basins shall have stenciled next to them "DUMP NO WASTE -DRAINS TO STREAM". Activity that involves pollutants shall be done under a covered area. The private driveways and parking lot shall be cleaned and swept as necessary to remove debris. Inspection Inspect the stormwater system and clean out catch basins at least twice a year, especially after periods of heavy runoff. Maintenance records must be kept for five (5) years and available for City Inspector review. The modular wetland shall be maintained as recommended by the manufacturer. Person of Responsibility Name: Address: Emergency Contact: Person of Responsibility, Date: Engineer Preparing Plan Name Address Plan and/or Information Updates Chick-fil-A, Inc. 17333 Southcenter Pkwy, Tukwila, WA Telephone No. 206-575-7547 Ethan Woodward, 1/31/2019 Chris Jensen, P.E. Barghausen Consulting Engineers, Inc. 18215 72nd Avenue South Kent, WA 98032 The City of Tukwila, Public Works Department, Engineering Division, Storm Drainage Section; is to review and approve any changes to this Operations and Maintenance Manual prior to changes in its implementation. Additionally, any changes in ownership or person of responsibility are to be reported to the City of Tukwila, Public Works. 18363.012.doc Page 8 of 25 4.6 Maintenance Standards for Drainage Facilities The facility -specific maintenance standards contained in this section are intended to be conditions for determining if maintenance actions are required as identified through inspection. They are not intended to be measures of the facility's required condition at all times between inspections. In other words, exceedence of these conditions at any time between inspections and/or maintenance does not automatically constitute a violation of these standards. However, based upon inspection observations, the inspection and maintenance schedules shall be adjusted to minimize the length of time that a facility is in a condition that requires a maintenance action. Table 4.5 — Maintenance Standards Page 9 of 25 INSPECTION / MAINTENANCE CHECKLIST STRUCTURE Inspection Frequency INSPECTION RESULTS AND MAINTENANCE DONE Inspection Results/ Maintenance Date COMMENTS Modular Wetland 2 Inspection Results Maintenance Done Oil/Water Separator 2 Inspection Results Maintenance Done Catch basins, trench drains and manholes 2 Inspection Results Maintenance Done Conveyance Pipes and Ditches 2 Inspection Results Maintenance Done Grounds/ Landscaping 3 Inspection Results Maintenance Done CB #1 Type 1 3 Inspection Results Maintenance Done CB #2 Type 1 3 Inspection Results Maintenance Done CB #3 Type 1 3 Inspection Results Maintenance Done CB #4 Type 1 3 Inspection Results Maintenance Done CB #5 Type 1 3 Inspection Results Maintenance Done CB #6 Type 1 3 Inspection Results Maintenance Done 18363.012.doc Page 10 of 25 STRUCTURE Inspection Frequency INSPECTION RESULTS AND MAINTENANCE DONE Inspection Results/ Maintenance Date COMMENTS CB #7 Type 1 3 Inspection Results Maintenance Done CB #8 Type 1 3 Inspection Results Maintenance Done CB #9 Type 1 3 Inspection Results Maintenance Done CB #10 Type 1 3 Inspection Results Maintenance Done CB #12 Type 1 3 Inspection Results Maintenance Done CB #13 Type 1 3 Inspection Results Maintenance Done CB #14 Type 1 3 Inspection Results Maintenance Done CB #15 Type 1 3 Inspection Results Maintenance Done CB #16 Type 2 3 Inspection Results Maintenance Done CB #17 Type 1 3 Inspection Results Maintenance Done CB #18 Type 2 3 Inspection Results Maintenance Done 18363.012.doc Page 11 of 25 STRUCTURE Inspection Frequency INSPECTION RESULTS AND MAINTENANCE DONE Inspection Results/ Maintenance Date COMMENTS CB #19 Type 1 3 Inspection Results Maintenance Done AD#1 Area Drain 3 Inspection Results Maintenance Done AD #2 Area Drain 3 Inspection Results Maintenance Done ACOCB Trench Drain and Catch Basin 3 Inspection Results Maintenance Done 1 Yearly (August or September) and after major storm events per manufacturer's recommendations 2 Twice a year 3 Monthly 18363.012.doc Page 12 of 25 No. 4 — Control Structure/Flow Restrictor Maintenance Component Defect Condition When Maintenance is Needed Results Expected When Maintenance is Performed General Trash and Debris (Includes Sediment) Material exceeds 25% of sump depth or 1 foot below orifice plate. Control structure orifice is not blocked. All trash and debris removed. Structural Damage Structure is not securely attached to manhole wall. Structure securely attached to wall and outlet pipe. Structure is not in upright position (allow up to 10% from plumb). Structure in correct position. Connections to outlet pipe are not watertight and show signs of rust. Connections to outlet pipe are water tight; structure repaired or replaced and works as designed. Any holes—other than designed holes --in the structure. Structure has no holes other than designed holes. Cleanout Gate Damaged or Missing Cleanout gate is not watertight or is missing. Gate is watertight and works as designed. Gate cannot be moved up and down by one maintenance person. Gate moves up and down easily and is watertight. Chain/rod leading to gate is missing or damaged. Chain is in place and works as designed. Gate is rusted over 50% of its surface area. Gate is repaired or replaced to meet design standards. Orifice Plate Damaged or Missing Control device is not working properly due to missing, out of place, or bent orifice plate. Plate is in place and works as designed. Obstructions Any trash, debris, sediment, or vegetation blocking the plate. Plate is free of all obstructions and works as designed. Overflow Pipe Obstructions Any trash or debris blocking (or having the potential of blocking) the overflow pipe. Pipe is free of all obstructions and works as designed. Manhole See "Closed Detention Systems" (No. 3). See "Closed Detention Systems" (No. 3). See "Closed Detention Systems" (No. 3). Catch Basin See "Catch Basins" (No. 5). See "Catch Basins" (No. 5). See "Catch Basins" (No. 5). Page 13 of 25 No. 5 — Catch Basins / Trench Drain Maintenance Component Defect Conditions When Maintenance is Needed Results Expected When Maintenanceis perf ormed General Trash & Debris Trash or debris which is located immediately in front of the catch basin opening or is blocking inletting capacity of the basin by more than 10%. No Trash or debris located immediately in front of catch basin or on grate opening. Trash or debris (in the basin) that exceeds 60 percent of the sump depth as measured from the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of six inches clearance from the debris surface to the invert of the lowest pipe. No trash or debris in the catch basin. Trash or debris in any inlet or outlet pipe blocking more than 1/3 of its height. Inlet and outlet pipes free of trash or debris. Dead animals or vegetation that could generate odors that could cause complaints or dangerous gases (e.g., methane). No dead animals or vegetation present within the catch basin. Sediment, Sediment (in the basin) that exceeds 60 percent of the sump depth as measured from the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of 6 inches clearance from the sediment surface to the invert of the lowest pipe. No sediment in the catch basin Structure Damage to Frame and/or Top Slab Top slab has holes larger than 2 square inches or cracks wider than 1/4 inch (Intent is to make sure no material is running into basin). Top slab is free of holes and cracks. Frame not sitting flush on top slab, i.e., separation of more than 3/4 inch of the frame from the top slab. Frame not securely attached Frame is sitting flush on the riser rings or top slab and firmly attached. Fractures or Cracks in Basin Walls/ Bottom Maintenance person judges that structure is unsound. Basin replaced or repaired to design standards. Grout fillet has separated or cracked wider than 1/2 inch and longer than 1 foot at the joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. Pipe is regrouted and secure at basin wall. Settlement/ Misalignment If failure of basin has created a safety, function, or design problem. Basin replaced or repaired to design standards. Vegetation Vegetation growing across and blocking more than 10% of the basin opening. No vegetation blocking opening to basin. Vegetation growing in inlet/outlet pipe joints that is more than six inches tall and less than six inches apart. No vegetation or root growth present. Page 14 of 25 No. 5 — Catch Basins / Trench Drain Maintenance Component Defect Conditions When Maintenance is Needed Results Expected When Maintenance is performed Contamination and Pollution See "Detention Ponds" (No. 1). No pollution present. Catch Basin Cover Cover Not in Place Cover is missing or only partially in place. Any open catch basin requires maintenance. Catch basin cover is closed Locking Mechanism Not Working Mechanism cannot be opened by one maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread. Mechanism opens with proper tools. Cover Difficult to Remove One maintenance person cannot remove lid after applying normal lifting pressure. (Intent is keep cover from sealing off access to maintenance.) Cover can be removed by one maintenance person. Ladder Ladder Rungs Unsafe Ladder is unsafe due to missing rungs, not securely attached to basin wall, misalignment, rust, cracks, or sharp edges. Ladder meets design standards and allows maintenance person safe access. Metal Grates (If Applicable) Grate opening Unsafe Grate with opening wider than 7/8 inch. ' Grate opening meets design standards. Trash and Debris Trash and debris that is blocking more than 20% of grate surface inletting capacity. Grate free of trash and debris. Damaged or Missing. Grate missing or broken member(s) of the grate. Grate is in place and meets design standards. Page 15 of 25 NO. 23 -- COALESCING PLATE OIL/WATER SEPARATOR Maintenance Component Defect Condition When Maintenance is Needed Results Expected When Maintenance is Performed Site Trash and debris Any trash or debris which impairs the function of the facility. Trash and debris removed from facility. Contaminants and pollution Floating oil in excess of 1 inch in first chamber, any oil in other chambers or other contaminants of any type in any chamber. No contaminants present other than a surface oil film. Vault Treatment Area Sediment accumulation in the forebay Sediment accumulation of 6 inches or greater in the forebay. No sediment in the forebay. Discharge water not clear Inspection of discharge water shows obvious signs of poor water quality - effluent discharge from vault shows thick visible sheen. Repair function of plates so effluent is clear. Trash or debris accumulation Trash and debris accumulation in vault (floatables and non-floatables). Trash and debris removed from vault. Oil accumulation Oil accumulation that exceeds 1 inch at the water surface in the in the coalescing plate chamber. No visible oil depth on water and coalescing plates clear of oil. Coalescing Plates Damaged Plate media broken, deformed, cracked and/or showing signs of failure. Replace that portion of media pack or entire plate pack depending on severity of failure. Sediment accumulation Any sediment accumulation which interferes with the operation of the coalescing plates. No sediment accumulation interfering with the coalescing plates. Vault Structure Damage to Wall, Frame, Bottom, and/or Top Slab Cracks wider than 1/2 -inch and any evidence of soil particles entering the structure through the cracks, or maintenance inspection personnel determines that the vault is not structurally sound. Vault replaced or repaired to design specifications. Baffles damaged Baffles corroding, cracking, warping and/or showing signs of failure as determined by maintenance/inspection person. Repair or replace baffles to specifications. Ventilation Pipes Plugged Any obstruction to the ventilation pipes. Ventilation pipes are clear. Shutoff Valve Damaged or inoperable Shutoff valve cannot be opened or closed. Shutoff valve operates normally. Inlet/Outlet Pipe Sediment accumulation Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. Trash and debris Trash and debris accumulated in inlet/outtet pipes (includes floatables and non-floatables). No trash or debris in pipes. Damaged Cracks wider than 1/2 -inch at the joint of the inlet/outlet pipes or any evidence of soil entering at the joints of the inlet/outlet pipes. No cracks more than %-inch wide at the joint of the inlet/outlet pipe. Access Manhole Cover/lid not in place Cover/lid is missing or only partially in place. Any open manhole requires immediate maintenance. Manhole access covered. Locking mechanism not working Mechanism cannot be opened by one maintenance person with proper tools. Bolts cannot be seated. Self-locking cover/lid does not work. Mechanism opens with proper tools. Cover/lid difficult to remove One maintenance person cannot remove cover/lid after applying 80 lbs of lift. Cover/lid can be removed and reinstalled by one maintenance person. Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. Page 16 of 25 NO. 23 - COALESCING PLATE OLJWATER SEPARATOR Maintenance Component Defect Condition When Maintenance is Needed Results Expected When Maintenance Is Performed Large access doors/plate Damaged or difficult to open Large access doors or plates cannot be opened/removed using normal equipment. Replace or repair access door so it can opened as designed. Gaps, doesn't cover completely Large access doors not flat and/or access opening not completely covered. Doors close flat and cover access opening completely. Lifting Rings missing, rusted Lifting rings not capable of lifting weight of door or plate. Lifting rings sufficient to lift or remove door or plate. Page 17 of 25 Modular Wetland System - Linear Inspection Guidelines Inspection Summary o Inspect Pre -Treatment, Biofiltration and Discharge Chambers - average inspection interval is 6 to 12 months. (15 -minute average inspection time). o NOTE: Pollutant loading varies greatly from site to site and no two sites are the same. Therefore, the first year requires inspection monthly during the wet season and every other month during the dry season in order to observe and record the amount of pollutant loading the system is receiving. Inspection Overview As with all stormwater BMPs inspection and maintenance on the MWS Linear is necessary. Stormwater regulations require that all BMPs be inspected and maintained to ensure they are operating as designed to allow for effective pollutant removal and provide protection to receiving water bodies. It is recommended that inspections be performed multiple times during the first year to assess the site specific loading conditions. This is recommended because pollutant loading and pollutant characteristics can vary greatly from site to site. Variables such as nearby soil erosion or construction sites, winter sanding on roads, amount of daily traffic and land use can increase pollutant loading on the system. The first year of inspections can be used to set inspection and maintenance intervals for subsequent years to ensure appropriate maintenance is provided. Without appropriate maintenance a BMP will exceed its storage capacity which can negatively affect its continued performance in removing and retaining captured pollutants. Inspection Equipment Following is a list of equipment to allow for simple and effective inspection of the MWS Linear:. Modular Wetland Inspection Form Flashlight • Manhole hook or appropriate tools to remove access hatches and covers • Appropriate traffic control signage and procedures • Measuring pole and/or tape measure. • Protective clothing and eye protection. Page 18 of 25 • 7/16" open or closed ended wrench. • Large permanent black marker (initial inspections only - first year) • Note: entering a confined space requires appropriate safety and certification. It is generally not required for routine inspections of the system. Inspection Steps The core to any successful stormwater BMP maintenance program is routine inspections. The inspection steps required on the MWS Linear are quick and easy. As mentioned above the first year should be seen as the maintenance interval establishment phase. During the first year more frequent inspections should occur in order to gather loading data and maintenance requirements for that specific site. This information can be used to establish a base for long term inspection and maintenance interval requirements. The MWS Linear can be inspected though visual observation without entry into the system. All necessary pre -inspection steps must be carried out before inspection occurs, especially traffic control and other safety measures to protect the inspector and near -by pedestrians from any dangers associated with an open access hatch or manhole. Once these access covers have been safely opened the inspection process can proceed: • Prepare the inspection form by writing in the necessary information including project name, location, date & time, unit number and other info (see inspection form). • Observe the inside of the system through the access hatches. If minimal light is available and vision into the unit is impaired utilize a flashlight to see inside the system and all of its chambers. • Look for any out of the ordinary obstructions in the inflow pipe, pre-treatment chamber, biofiltration chamber, discharge chamber or outflow pipe. Write down any observations on the inspection form. • Through observation and/or digital photographs estimate the amount of trash, debris and sediment accumulated in the pre-treatment chamber. Utilizing a tape measure or measuring stick estimate the amount of trash, debris and sediment in this chamber. Record this depth on the inspection form. • Through visual observation inspect the condition of the pre -filter cartridges. Look for excessive build-up of sediments on the cartridges, any build-up on the top of the cartridges, or clogging of the holes. Record this information on the inspection form. The pre -filter cartridges can further be inspected by removing the cartridge tops and assessing the color of the Page 19 of 25 BioMediaGREEN filter cubes (requires entry into pre-treatment chamber — see notes above regarding confined space entry). Record the color of the material. New material is a light green in color. As the media becomes clogged it will turn darker in color, eventually becoming dark brown or black. Using the below color indicator record the percentage of media exhausted. • The biofiltration chamber is generally maintenance free due to the system's advanced pretreatment chamber. For units which have open planters with vegetation it is recommended that the vegetation be inspected. Look for any plants that are dead or showing signs of disease or other negative stressors. Record the general health of the plants on the inspection and indicate through visual observation or digital photographs if trimming of the vegetation is needed. • The discharge chamber houses the orifice control structure and is connected to the outflow pipe. It is important to check to ensure the orifice is in proper operating conditions and free of any obstructions. Generally, the discharge chamber will be clean and free of debris. Inspect the water marks on the side walls. If possible, inspect the discharge chamber during a rain event to assess the amount of flow leaving the system while it is at 100% capacity (pretreatment chamber water level at peak HGL). The water level of the flowing water should be compared to the watermark level on the side walls which is an indicator of the highest discharge rate the system achieved when initially installed. Record on the form is there is any difference in level from watermark in inches. 0% -- Percent Clogged -- 100% New • NOTE: During the first few storms the water level in the outflow chamber should be observed and a 6" long horizontal watermark line drawn (using a large permanent marker) at the water level in the discharge chamber while the system is operating at 100% capacity. This line is a reference point for future inspections of the system: • Water level in the discharge chamber is a function of flow rate and pipe size. Observation of water level during the first few months of operation can be used as a benchmark level for future inspections. The initial mark and all future observations shall be made when system is at 100% capacity (water level at maximum level in pre-treatment chamber). If future water levels are below this mark when system is at 100% capacity this is an indicator that maintenance to the pre-filter cartridges may be needed. • Finalize inspection report for analysis by the maintenance manager to determine if maintenance is required. Using a permanent marker draw a 6 inch - long horizontal line, as shown, at the higher water level in the MWS Linear discharge chamber. Page 20 of 25 Maintenance Indicators Based upon observations made during inspection, maintenance of the system may be required based on the following indicators: • Missing or damaged internal components or cartridges. • Obstructions in the system or its inlet or outlet. • Excessive accumulation of floatables in the pre-treatment chamber in which the length and width of the chamber is fully impacted more than 18". • Excessive accumulation of sediment in the pre-treatment chamber of more than 6" in depth. • Excessive accumulation of sediment on the BioMediaGREEN media housed within the prefilter cartridges. The following chart shows photos of the condition of the BioMediaGREEN contained within the pre -filter cartridges. When media is more than 85% clogged replacement is required. • Overgrown vegetation. • Water level in discharge chamber during 100% operating capacity (pre-treatment chamber water level at max height) is lower than the watermark by 20%. Inspection Notes 1. Following maintenance and/or inspection, it is recommended the maintenance operator prepare a maintenance/inspection record. The record should include any maintenance activities performed, amount and description of debris collected, and condition of the system and its various filter mechanisms. 2. The owner should keep maintenance/inspection record(s) for a minimum of five years from the date of maintenance. These records should be made available to the governing municipality for inspection upon request at any time. 3. Transport all debris, trash, organics and sediments to approved facility for disposal in accordance with local and state requirements. 4. Entry into chambers may require confined space training based on state and local regulations. 5. No fertilizer shall be used in the Biofiltration Chamber. 6. Irrigation should be provided as recommended by manufacturer and/or landscape architect. Amount of irrigation required is dependent on plant species. Some plants may not require irrigation after initial establishment. Page 21 of 25 Modular Wetland System — Linear Maintenance Guidelines Maintenance Summary o Remove Sediment from Pre -Treatment Chamber - average maintenance interval is 12 to 24 months. • (10 -minute average service time). o Replace Pre -Filter Cartridge Media - average maintenance interval 12 to 24 months. • (10-15 minute per cartridge average service time). o Trim Vegetation - average maintenance interval is 6 to 12 months. • (Service time varies). Maintenance Overview The time has come to maintain your Modular Wetland System Linear (MWS Linear). To ensure successful and efficient maintenance on the system we recommend the following. The MWS Linear can be maintained by removing the access hatches over the systems various chambers. All necessary pre -maintenance steps must be carried out before maintenance occurs, especially traffic control and other safety measures to protect the inspector and near -by pedestrians from any dangers associated with an open access hatch or manhole. Once traffic control has been set up per local and state regulations and access covers have been safely opened the maintenance process can begin. It should be noted that some maintenance activities require confined space entry. All confined space requirements must be strictly followed before entry into the system. In addition, the following is recommended: • Prepare the maintenance form by writing in the necessary information including project name, location, date & time, unit number and other info (see maintenance form). • Set up all appropriate safety and cleaning equipment. • Ensure traffic control is set up and properly positioned. • Prepare a pre -checks (OSHA, safety, confined space entry) are performed. Page 22 of 25 Maintenance Equipment Following is a list of equipment required for maintenance of the MWS Linear: Modular Wetland Maintenance Form Manhole hook or appropriate tools to access hatches and covers • Protective clothing, flashlight and eye protection. • 7/16" open or closed ended wrench. • Vacuum assisted truck with pressure washer. Replacement BioMediaGREEN for Pre -Filter Cartridges if required (order from manufacturer). Maintenance Steps 1. Pre-treatment Chamber (bottom of chamber) A. Remove access hatch or manhole cover over pre-treatment chamber and position vacuum truck accordingly. B. With a pressure washer spray down pollutants accumulated on walls and pre -filter cartridges. C. Vacuum out Pre -Treatment Chamber and remove all accumulated pollutants including trash, debris and sediments. Be sure to vacuum the floor until pervious pavers are visible and clean. D. If Pre -Filter Cartridges require media replacement move onto step 2. If not, replace access hatch or manhole cover. Removal of access hatch to gain access below. Insertion of vacuum hose into separation chamber. Removal of trash, sediment and debris. Fully cleaned separation chamber. 2. Pre -Filter Cartridges (attached to wall of pre-treatment chamber) A. After finishing step 1 enter pre-treatment chamber. B. Unscrew the two bolts holding the lid on each cartridge filter and remove lid. C. Place the vacuum hose over each individual media filter to suck out filter media. D. Once filter media has been sucked use a pressure washer to spray down inside of the cartridge and it's containing media cages. Remove cleaned media cages and place to the side. Once removed the vacuum hose can be inserted into the cartridge to vacuum out any remaining material near the bottom of the cartridge. Page 23 of 25 OW CLEAN. 2NYiO4NMCNTA1. SCNYtCCS. INC Inspection Report Modular Wetlands System Project Name: Project Address: Owner / Management Company: Contact: Inspector Name: Phone Date r r Time For Office Use Only (Kevrewealtsy) {MAO Office ( o,000n0110 completO.noctiort l0 the 1efln AM / PM Type of Inspection 0 Routine 0 Follow Up 0 Complaint 0 Storm Storm Event in Last 72 -hours? 0 No 0 Yes Weather Condition Additional Notes Inspection Checklist Modular Wetland System Type (Curb, Grate or UG Vault): Size (22', 14' or etc.): Structural Integrity: Yes No Comments Damage to pre-treatment access cover (manhole cover/grate) or cannot be opened using normal lifting pressure? Damage to discharge chamber access cover (manhole cover/grate) or cannot be opened using normal pressure? Does the MWS unit show signs of structural deterioration (cracks in the wall, damage to frame)? Is the inlet/outlet pipe or drain down pipe damaged or otherwise not functioning properly? Working Condition: Is there evidence of illicit discharge or excessive oil, grease, or other automobile fluids entering and clogging the unit? Is there standing water in inappropriate areas after a dry period? Is the filter insert (if applicable) at capacity and/or is there an accumulation of debris/trash on the shelf system? Does the depth of sediment/trash/debris suggest a blockage of the inflow pipe, bypass or cartridge filter? If yes, specify which one in the comments section. Note depth of accumulation in in pre-treatment chamber. Depth: Does the cartridge filter media need replacement in pre-treatment chamber and/or discharge chamber? Chamber: Any signs of improper functioning in the discharge chamber? Note issues in comments section. Other Inspection Items: Is there an accumulation of sediment/trash/debris in the wetland media (if applicable)? Is it evident that the plants are alive and healthy (if applicable)? Please note Plant Information below. Is there a septic or foul odor coming from inside the system? Page 24 of 25 - Part 1 Waste: Yes No Sediment / Silt / Clay Trash / Bags / Bottles Green Waste / Leaves / Foliage Additional Notes: Recommended Maintenance No Cleaning Needed Schedule Maintenance as Planned Needs Immediate Maintenance Plant Information Damage to Plants Plant Replacement Plant Trimming 2972 San Luis Rey Road, Oceanside, CA 92058 P (760) 433-7640 F (760) 433-3176 Page 24 of 25 - Part 2 Bit CLEAN. ENVIRONMENTAL SERVICES; INC. Cleaning and Maintenance Report Modular Wetlands System WLTLAND Project Name Project Address (NIA ' (VpCodR) Owner / Management Company Contact Inspector Name Phone( For office use Only (RovlaWoo By) QM.) Office porOOnn0110 0UIopI0f0 ooctbn to IM lon. Date ( / rime AM / PM Type of Inspection 0 Routine ❑ Follow Up 0 Complaint 0 Storm Storm Event in Last 72 -hours? 0 No 0 Yes Weather Condition Additional Notes Site Map # GPS Coordinates of Insert Manufacturer / Description / Sizing Trash Accumul ation Foliage Accumula tion Sediment Accumula tion Total Debris Accumul ation Condition of Media 25/50/751100 (will be changed @ 75%) Operational Per Manufactures' Specifications (If not, why?) Lot: MWS Catch Basins Long: MWS Sedimentation Basin Media Filter Condition Plant Condition Drain Down Media Condition Discharge Chamber Condition Drain Down Pipe Condition Inlet and Outlet Pipe Condition Comments: 2972 San Luis Rey Road, Oceanside, CA 92058 P. 760.433.7640 F. 760.433.3176 Page 25 of 25