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Home My WebLink About2025 - Declaration of Covenant for Inspection and Maintenance of Stormwater Facilities and BMPS - Prologis / City of Tukwila - 20250219000803Instrument Number: 20250219000803 Document:COV Rec: 5357.50 Page -1 of 55 Record Date:2/19/2025 2:56 PM Electronically Recorded King County, WA After Recording Return to: City Clerk City of Tukwila 6200 Southcenter Boulevard Tukwila, WA 98188 DOCUMENT TITLE: Declaration of Covenant for Inspection and Maintenance of _ Stormwater Facilities and BMPS REFERENCE NUMBER(S) OF RELATED PW18-0182, D20-0029, PW20-0030, PW20-0135, D21 - DOCUMENTS: 0091, D23-0199 & D22-_0186 Additional reference numbers at page 2 of document GRANTOR: PROLOGIS-EXCHANGE 3301 SOUTH NORFOLK LLC GRANTEE: City of Tukwila, a Washington Municipal Corporation ABBREVIATED LEGAL DESCRIPTION: PORTION OF TIMOTHY GROW'S DONATION LAND CLAIM IN SECTIONS 3 AND 4, TOWNSHIP 23. NORTH, RANGE, 4 FAST, W.M. Full legal on page 5 of document. DING COUNTY TAX PARCEL NUMBER: 1 0003400042, 0323049024, 0323049229, 0323049080, 0323049171, _'0323049028 03230492390012�q58 and 0323049045 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -2 of 55 Record Date:2/19/2025 2:56 PM King County, WA DECLARATION OF COVENANT FOR INSPECTION AND MAINTENANCE OF STORMWATER FACILITIES AND BMPS 1. Parties 1.1 This Covenant for Inspection and Maintenance of Stormwater Facilities and Best Management Practices ("Covenant') is made by and between PROLOGIS-EXCHANGE 3301 SOUTH NORFOLK LLC, a Delaware limited liability company as Grantor, and the City of Tukwila, a Washington Municipal Corporation, as Grantee. Grantor and Grantee (also denoted as City herein) are each a Party and collectively the Parties to this Agreement. 2. Recitals 2.1 Grantor applied to City for issuance of a Public Works permit on December 14th, 2018. 2.2 Pursuant to TMC 14.30.060, application for and issuance of such permit requires the property owner to enter into this Covenant. 2.3 The subject of the Covenant is the real property located in King County, Washington, bearing King County Tax Parcel No. 0003400042, 0323049024, 0323049229, 0323049080, 0323049171, 0323049028, 0323049230, 0323049058, and 0323049045 and legally described in the attached Exhibit A incorporated herein ("Property"). 2.4 The City approved the applications which consist of the following documents, attached and incorporated herein: 2.4.1 City issued Permit No. PW 18-0182, D20-0029, PW20-0030, PW20-0135, D21- 0091, D23-0199 & D22-0186, Exhibit B. 2.4.2 Stormwater Facility/BMP Site Plan, Exhibit C. 2.4.3 Operations & Maintenance Plan including schedule, Exhibit D. 3. Terms of Agreement NOW THEREFORE, in consideration of the foregoing recitals and other good and valuable consideration including approval and issuance of City of Tukwila Permits PW18-0182, D20-0029, PW20- 0030, PW20-0135, D21-0091, D23-0199 & D22-0186, the sufficiency and receipt of which are acknowledged, Grantor hereby irrevocably covenants as follows: 3.1 The foregoing Recitals and references to documents are incorporated as material terms of this Covenant. 3.2 The Grantor(s) for itself and its successors in interest having any ownership interest in the Property (collectively Owners) shall at their sole cost and expense retain, uphold, operate, maintain, and repair the stormwater facilities and best management practices ("BMPs") located on the Property pursuant to the schedule within the Operations & Maintenance Plan. City of Tukwila Page 1 Stonnwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -3 of 55 Record Date:2/19/2025 2:56 PM King County, WA 3.3 The obligations required under Section 3.2 above shall be taken consistent the following: 3.3.1 The City shall have the right of 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 Tukwila Municipal Code ("TMC") 14.30.80. This right of ingress and egress, right to inspect, and right to perform required maintenance or repair shall be as provided for in subsection 3.3.2 below. 3.3.2 If the City determines that maintenance or repair work is required to be done to any of the stormwater facilities or BMPs, the Director of Public Works of designee (the "Director") shall give notice of the specific maintenance and/or repair work required pursuant to TMC 14.30.080. 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 is hereby granted access to the Property for such purposes. Written notice will be mailed 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; provided however, that the City shall notify the Owner of such maintenance and/or repair work as soon as reasonably practicable. Notwithstanding anything contained herein to the contrary, (a) the City shall not have access to the interior of any buildings or structures located on the Property unless prior consent is received from the Owner, and (b) except in the event of imminent or present danger as specified in Section 3.4 below, any and all access to, and activities permitted hereunder on, the Property shall be during normal business hours. 3.4 If at any time the City reasonably determines that a stormwater facility or BMP on the Property presents an imminent hazard, as identified by TMC 14.30.080 and herein incorporated by reference, the Director or equivalent municipal successor's official may take measures specified therein. 3.5 3.5 The Owner shall assume all responsibility for the actual cost of any maintenance or repair work completed by the City as described in Covenant. Such responsibility shall include reimbursement to the City within sixty (60) days of the receipt of the invoice for any such work performed. All such costs and expense shall constitute a lien against the Property if not paid within said 60 -day period. 3.6 The Owners shall obtain a Type C Public Works pen -nit from the City prior to filling, piping, cutting, or removing vegetation (except in routine landscape maintenance such as replacement of plants and pretreatment mulch) 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 Covenant. Prior to the final approval and issuance of the new permit, a new Covenant with updated exhibits reflecting the changes to the stonnwater facilities shall be recorded at the Owner's sole cost, and a copy of the new recorded Declaration of Covenant provided to the City. 3.7 Any notice or consent required to be given or otherwise provided for by the provisions of this Declaration of Covenant 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 of Tukwila Page 2 Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -4 of 55 Record Date:2/19/2025 2:56 PM King County, WA To Grantee: To Grantor: City Clerk Prologis City of Tukwila Attn: Matt Holland (Property Manager) 6200 Southcenter Blvd. 5900 Airport Way South, Suite 300 Tukwila, WA 98188 Seattle, WA 98108 3.8 With regard to the matters addressed herein, this Covenant constitutes the entire agreement between the parties, and supersedes all prior discussions, negotiations, and all agreements whatsoever whether oral or written. This Covenant shall be governed by the laws of the State of Washington. Any suit to enforce or relating to this Covenant shall only be filed in King County Superior Court, King County, Washington, and the Parties consent to the jurisdiction thereof. In the event of any legal action by either Party relating to this Covenant, the Parties shall pay their own costs or fees. 3.9 This Covenant is intended to protect the value and desirability of the real property described in Exhibit A, promote the efficient and effective management of stormwater drainage, and shall inure to the benefit of all the citizens of the City and its municipal successors and assigns. References herein to the TMC shall include subsequent amendments to such statutes and all successor statutes. 3.10 This Covenant shall run with the land and shall be binding upon the Owners as defined in Section 3.2 above. 3.11 This Covenant may be amended or terminated only with the advance express written consent of the City as determined pursuant to its discretion. City of Tukwila Page 3 Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document: COV Rec: 5357.50 Page -5 of 55 Record Date:211912025 2:56 PM King County, WA a uetaware umneo parrnersnip, its Sole Member By: PROLOGIS, INC., a Maryland corporation, its General Partner Jkakg riaxw ll President DATt $Public Works Directtt"r DATE: �lf' City of Tukwila Page 4 Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document: COV Rec: 6357.50 Page -6 of 55 Record Date:211912025 2:56 PM King County, WA GIVEN UNDER MY HAND AND OFFICIAL SEAL thisday of 2025, t u NOTARY e Painted Name ®.� 3 NOTARY PUBLIC in and for the State of Washington, PUBLIC k` residing at 't`_ to i (c, _ c _ A., " My Commission Expires 0"1 2 STATE OrV44WN16TON SS. COUTNTY OF KING On this day personally appeared before me I�g�_r to me known to be the i"rI At 6t jam_ of the CITE: OF TI KE " I.A, a municipal corporation and noncharter code city witi� a council- ayor form of government organized pursuant to RCW Title 35A, that executed the foregoing instrument, and acknowledged such instrument to be her free and voluntary act and deed of said city for the uses and purposes therein mentioned, and on oath stated that 601 was duly authorized to execute such instrument. GIVEN UNDER MY HAND AND OFFICIAL S[AL this day of 12025. tyllt9itll t! lttl�#!!ltxxf -T TRA", y.•4 -/ 4 t&39z�°•.,te 'dx Printe d ai�7 TiCTARy NOTARY PUBLIC itt a=d for the state of Washington, residing at P PUBLIC USLIC 0 < — My Commission Expires 1017-,117— xxxp! r rYAT e� ik i�ys�e !!!PPl19 N}dtti:ttt City ofTttkwila Page 5 Stormwater ;Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -7 of 55 Record Date:2/19/2025 2:56 PM King County, WA EXHIBIT A LEGAL DESCRIPTION OF PROPERTY PARCEL A: THAT PORTION OF TIMOTHY GROW'S DONATION LAND CLAIM IN SECTIONS 3 AND 4, TOWNSHIP 23 NORTH, RANGE 4 EAST, W.M., COMMENCING AT THE NORTHWEST CORNER OF THE SOUTHWEST QUARTER OF THE NORTHWEST QUARTER OF SAID SECTION 3; THENCE SOUTH 01°31'37" WEST, ALONG THE WEST LINE OF SAID SUBDIVISION, 30.00 FEET TO A POINT ON THE SOUTH LINE OF THE NORTH 30 FEET IN WIDTH OF SAID SUBDIVISION AND THE TRUE POINT OF BEGINNING; THENCE SOUTH 87°37'49" EAST, ALONG SAID SOUTH LINE, 58.40 FEET TO AN INTERSECTION WITH THE NORTHERLY MARGIN OF SAID SOUTH NORFOLK STREET; THENCE SOUTH 67°07'48" WEST, ALONG SAID NORTHERLY MARGIN, 203.66 FEETTO AN INTERSECTION WITH A LINE WHICH IS 213 FEET WESTERLY, MEASURED AT RIGHT ANGLES TO AND PARALLEL WITH THE WESTERLY MARGIN OF SAID PUGET SOUND ELECTRIC COMPANY RIGHT-OF-WAY; THENCE NORTH 07°03'44" WEST, ALONG SAID PARALLEL LINE, 88.03 FEET TO A POINT WHICH BEARS NORTH 87°37'49" WEST 140.25 FEET FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 87°37'49" EAST 140.25 FEET TO THE TRUE POINT OF BEGINNING. PARCELS B AND C, CITY OF TUKWILA BOUNDARY LINE ADJUSTMENT NUMBER L19-0003, ALSO KNOWN AS AS CITY OF SEATTLE LOT BOUNDARY ADJUSTMENT NUMBER 3033668 -LU, UNDER KING COUNTY RECORDING NUMBER 20201105900023, MORE PARTICULARLY DESCRIBED AS FOLLOWS: BEGINNING AT THE WESTERLY MOST CORNER OF PARCEL J OF SAID BOUNDARY LINE ADJUSTMENT, BEING A POINT ON THE EASTERLY MARGIN OF EAST MARGINAL WAY SOUTH; THENCE NORTH 22°31'45" WEST, ALONG SAID EASTERLY MARGIN, 395.05 FEET TO THE INTERSECTION WITH THE SOUTHERLY MARGIN OF SOUTH NORFOLK STREET; THENCE NORTH 67°07'48" EAST, ALONG SAID SOUTHERLY MARGIN, 840.97 FEET TO THE WESTERLY LIMITS OF PARCEL D OF SAID BOUNDARY LINE ADJUSTMENT; THENCE SOUTH 22°31'51" EAST, ALONG THE WESTERLY LIMITS OF SAID PARCEL D, 331.17 FEET; THENCE SOUTH 58°29'33" EAST, ALONG THE WESTERLY LIMITS OF SAID PARCEL D, 91.92 FEET; THENCE SOUTH 22°31'51" EAST, ALONG THE WESTERLY LIMITS OF SAID PARCEL D, 29.46 FEETTO THE NORTHERLY MOST CORNER OF PARCEL E OF SAID BOUNDARY LINE ADJUSTMENT; THENCE SOUTH 67°28'06" WEST, ALONG THE NORTHERLY LIMITS OF SAID PARCELS E AND J, 830.32 FEET; THENCE NORTH 84°04'54" WEST, ALONG THE NORTHERLY LIMITS OF SAID PARCEL J, 73.50 FEETTO THE City of Tukwila Page 6 Stonnwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -8 of 55 Record Date:2/19/2025 2:56 PM King County, WA POINT OF BEGINNING. TOGETHER WITH AND SUBJECT TO ANY EXISTING EASEMENTS.PARCEL D: THAT PORTION OF TIMOTHY GROWS DONATION LAND CLAIM AND GOVERNMENT LOT 1 IN SECTION 3, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: PARCEL D: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89°19'28" WEST, 520.74 FEET; THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67°07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 22'31'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET AND THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 22°31'51" EAST, 331.17 FEET; THENCE SOUTH 58°29'33" EAST, 91.92 FEET; THENCE SOUTH 22°31'51" EAST, 427.47 FEET; THENCE NORTH 6728'09" EAST, 458.05 FEET TO THE WEST MARGIN OF SAID AIRPORT WAY SOUTH; THENCE ALONG SAID WEST MARGIN, NORTH 20'15'08" WEST, 629.33 FEET TO A POINT OF CURVATURE; THENCE CONTINUING ALONG SAID WEST MARGIN, NORTHWESTERLY ALONG THE ARC OF A CURVE TO THE LEFT, HAVING A RADIUS OF 48.00 FEET, THROUGH A CENTRAL ANGLE OF 34°46'15", AND AN ARC LENGTH OF 29.13 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE THE NEXT 3 COURSES ALONG THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET, SOUTH 8919'28" WEST, 408.74 FEET TO A POINT OF CURVATURE; THENCE WESTERLY ALONG THE ARC OF A CURVE TO THE LEFT, HAVING A RADIUS OF 340.71 FEET, THROUGH A CENTRAL ANGLE OF 22°11'40", AND AN ARC LENGTH OF 131.98 FEET; THENCE SOUTH 67°07'48" WEST, 21.36 FEET TO THE TRUE POINT OF BEGINNING. PARCEL E: THAT PORTION OF TIMOTHY GROWS DONATION LAND CLAIM IN SECTIONS 3 AND 4, GOVERNMENT LOT 1 IN SECTION 3, THE NORTHWEST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 3, AND GOVERNMENT LOTS 8 AND 9 IN SECTION 4, ALL IN TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89°19'28" WEST, 520.74 FEET; THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67°07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 2231'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE CONTINUING SOUTH 22°31'51" EAST, 331.17 FEET; THENCE SOUTH S8°29'33" EAST, 91.92 FEET; City of Tukwila Page 7 Stonnwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -9 of 55 Record Date:2/19/2025 2:56 PM King County, WA THENCE SOUTH 22°31'51" EAST, 29.46 FEET TO THE TRUE POINT OF BEGINNING; THENCE SOUTH 67°28'06" WEST, 447.49 FEET; THENCE SOUTH 22°31'51" EAST, 1,043.38 FEET; THENCE NORTH 67°48'06" EAST, 447.50 FEET TO A POINT WHICH BEARS SOUTH 22°31'51" EAST FROM THE TRUE POINT OF BEGINNING; THENCE NORTH 22°31'51" WEST, 1,045.98 FEET TO THE TRUE POINT OF BEGINNING. TOGETHER WITH AN EASEMENT FOR ACCESS AND UTILITIES RECORDED UNDER RECORDING NO. 20200914001435, RECORDS OF KING COUNTY, WASHINGTON. PARCEL F: THAT PORTION OF GOVERNMENT LOT 1 IN SECTION 3, THE NORTHWEST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 3, ALL IN TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89°19'28" WEST, 520.74 FEET; THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67°07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 22°31'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE CONTINUING SOUTH 22'31'51" EAST, 331.17 FEET; THENCE SOUTH 58°29'33" EAST, 91.92 FEET; THENCE SOUTH 22°31'51" EAST, 427.47 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 22°31'51" EAST, 834.00 FEET; THENCE NORTH 67°28'09" EAST, 321.18 FEET TO THE WEST MARGIN OF SAID AIRPORT WAY SOUTH, BEING A POINT ON A NON -TANGENT CURVE, THE RADIUS POINT OF WHICH BEARS NORTH 87'28'44" WEST; THENCE NORTHERLY ALONG SAID WEST MARGIN, ALONG THE ARC OF A CURVE CONCAVE TO THE WEST, HAVING A RADIUS OF 880.00 FEET, THROUGH A CENTRAL ANGLE OF 22°46'24", AND AN ARC LENGTH OF 349.77 FEET TO AN ANGLE POINT; THENCE ALONG SAID WEST MARGIN, NORTH 69°44'52" EAST, 35.00 FEET TO AN ANGLE POINT; THENCE ALONG SAID WEST MARGIN, NORTH 20°15'08" WEST, 498.15 FEET TO A POINT WHICH THE TRUE POINT OF BEGINNING BEARS NORTH 67°28'09" EAST; THENCE SOUTH 67°28'09" WEST, 458.05 FEET TO THE TRUE POINT OF BEGINNING. PARCEL G: THAT PORTION OF THE NORTHWEST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 3, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; City of Tukwila Page 8 Stonnwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -10 of 55 Record Date:2/19/2025 2:56 PM King County, WA THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89°19'28" WEST, 520.74 FEET; THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67'07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 22°31'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE CONTINUING SOUTH 22°31'51" EAST, 331.17 FEET; THENCE SOUTH 58°29'33" EAST, 91.92 FEET; THENCE SOUTH 2231'51" EAST, 1,075.44 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 2231'51" EAST, 609.89 FEET TO THE NORTHWESTERLY MARGIN OF AIRPORT WAY SOUTH, BEING A POINT ON A NON -TANGENT CURVE, THE RADIUS POINT OF WHICH BEARS NORTH 60°15'53" WEST; THENCE ALONG SAID NORTHWESTERLY MARGIN, SOUTHWESTERLY ALONG THE ARC OF A CURVE CONCAVE TO THE NORTHWEST, HAVING A RADIUS OF 522.96 FEET, THROUGH A CENTRAL ANGLE OF 56'09'57", AND AN ARC LENGTH OF 512.65 FEET TO THE NORTH MARGIN OF SOUTH BOEING ACCESS ROAD; THENCE ALONG SAID NORTH MARGIN, SOUTH 04°05'57" EAST, 7.00 FEET; THENCE ALONG SAID NORTH MARGIN, SOUTH 85°54'03" WEST, 447.77 FEET TO A POINT OF CURVATURE; THENCE NORTHWESTERLY ALONG THE ARC OF A CURVE TO THE RIGHT, HAVING A RADIUS OF 102.80 FEET, THROUGH A CENTRAL ANGLE OF 83`52'45", AND AN ARC LENGTH OF 150.50 FEET TO THE EAST MARGIN OF EAST MARGINAL WAY SOUTH; THENCE ALONG SAID EAST MARGIN NORTH 10°13'12" WEST, 272.67 FEET TO A POINT OF CURVATURE; THENCE NORTHERLY ALONG THE ARC OF A CURVE TO THE LEFT, HAVING A RADIUS OF 1,184.34 FEET, THROUGH A CENTRAL ANGLE OF 09°34'56", AND AN ARC LENGTH OF 198.07 FEET; THENCE DEPARTING SAID EAST MARGIN, NORTH 73'15'40" EAST, 202.68 FEET TO A POINT WHICH BEARS SOUTH 6748'06" WEST FROM THE TRUE POINT OF BEGINNING; THENCE NORTH 67°48'06" EAST, 694.68 FEET TO THE TRUE POINT OF BEGINNING. PARCEL H: THAT PORTION OF THE NORTHWEST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 3, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89'19'28" WEST, 520.74 FEET; THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67°07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 22°31'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE CONTINUING SOUTH 22°31'51" EAST, 331.17 FEET; THENCE SOUTH 58'29'33" EAST, 91.92 FEET; THENCE SOUTH 2231'51" EAST, 1,261.47 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 22°31'51" EAST, 134.53 FEET; THENCE NORTH 67°28'09" EAST, 237.00 FEET TO THE WESTERLY MARGIN OF SAID AIRPORT WAY SOUTH; City of Tukwila Page 9 Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -11 of 55 Record Date:2/19/2025 2:56 PM King County, WA THENCE ALONG SAID WESTERLY MARGIN SOUTH 77°06'28" EAST, 5.00 FEET TO A POINT ON A NON - TANGENT CURVE, THE RADIUS POINT OF WHICH BEARS NORTH 7706'28" WEST; THENCE ALONG SAID WESTERLY MARGIN, NORTHERLY ALONG THE ARC OF A CURVE CONCAVE TO THE WEST, HAVING A RADIUS OF 880.00 FEET, THROUGH A CENTRAL ANGLE OF 10°22'16", AND AN ARC LENGTH OF 159.29 FEET TO A POINT WHICH BEARS NORTH 67°28'09" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 6728'09" WEST, 321.18 FEET TO THE TRUE POINT OF BEGINNING. PARCELI: THAT PORTION OF THE NORTHWEST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 3, TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89°19'28" WEST, 520.74 FEET; THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67°07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 2231'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE CONTINUING SOUTH 22°31'51" EAST, 331.17 FEET; THENCE SOUTH 58°29'33" EAST, 91.92 FEET; THENCE SOUTH 22°31'51" EAST, 1,396.00 FEETTO THE TRUE POINT OF BEGINNING; THENCE CONTINUING SOUTH 2231'51" EAST, 289.32 FEETTO THE WESTERLY MARGIN OF SAID AIRPORT WAY SOUTH, BEING A POINT ON A NON -TANGENT CURVE, THE RADIUS POINT OF WHICH BEARS NORTH 60°15'53" WEST; THENCE NORTHERLY ALONG SAID WESTERLY MARGIN, BEING AM ARC OF A CURVE CONCAVE TO THE WEST, HAVING A RADIUS OF 5,22.96 FEET, THROUGH A CENTRAL ANGLE OF 16°50'34", AND AN ARC LENGTH OF 153.73 FEET; THENCE SOUTH 7706'28" EAST, 3.00 FEET; THENCE NORTH 12°53'32" EAST, 221.61 FEETTO A POINT WHICH BEARS NORTH 67°28'09" EAST FROM THE TRUE POINT OF BEGINNING; THENCE SOUTH 67°28'09" WEST, 237.00 FEET TO THE TRUE POINT OF BEGINNING. PARCEL J: THAT PORTION OF GOVERNMENT LOT 1 IN SECTION 3, THE NORTHWEST QUARTER OF THE SOUTHWEST QUARTER OF SECTION 3, AND GOVERNMENT LOTS 8 AND 9 IN SECTION 4, ALL IN TOWNSHIP 23 NORTH, RANGE 4 EAST, WILLAMETTE MERIDIAN, SITUATE IN THE COUNTY OF KING, STATE OF WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT THE INTERSECTION OF THE CENTERLINES OF SOUTH NORFOLK STREET AND AIRPORT WAY SOUTH; THENCE ALONG THE CENTERLINE OF SAID SOUTH NORFOLK STREET, SOUTH 89°19'28" WEST, 520.74 FEET; City of Tukwila Page 10 Stonnwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -12 of 55 Record Date:2/19/2025 2:56 PM King County, WA THENCE CONTINUING ALONG SAID CENTERLINE, SOUTH 67°07'48" WEST, 95.80 FEET; THENCE DEPARTING SAID CENTERLINE, SOUTH 2231'51" EAST, 40.00 FEET TO THE SOUTH MARGIN OF SAID SOUTH NORFOLK STREET; THENCE CONTINUING SOUTH 22°31'51" EAST, 331.17 FEET; THENCE SOUTH S8°29'33" EAST, 91.92 FEET; THENCE SOUTH 22°31'51" EAST, 29.46 FEET; THENCE SOUTH 6728'06" WEST, 447.49 FEET TO THE TRUE POINT OF BEGINNING; THENCE SOUTH 2231'51" EAST, 1,043.38 FEET; THENCE SOUTH 67°48'06" WEST, 247.19 FEET; THENCE SOUTH 73°15'40" WEST, 202.68 FEET TO THE EAST MARGIN OF EAST MARGINAL WAY SOUTH, BEING A POINT ON A NON -TANGENT CURVE, THE RADIUS OF WHICH BEARS SOUTH 70°11'52" WEST; THENCE THE NEXT SIX COURSES ALONG SAID EAST MARGIN, NORTHERLY ALONG THE ARC OF A CURVE CONCAVE TO THE WEST, HAVING A RADIUS OF 1,184.34 FEET, THROUGH A CENTRAL ANGLE OF 0243'37", AND AN ARC LENGTH OF 56.37 FEET; THENCE NORTH 22°31'45" WEST, 234.03 FEET; THENCE NORTH 6S°50'06" EAST, 2.27 FEET; THENCE NORTH 24°09'24" WEST, 19.00 FEET; THENCE NORTH 2548'32" WEST, 30.24 FEET; THENCE NORTH 2231'45" WEST, 716.87 FEET; THENCE DEPARTING SAID EAST LINE, SOUTH 84°04'54" EAST, 73.50 FEET TO A POINT WHICH BEARS SOUTH 67°28'06" WEST FROM THE TRUE POINT OF BEGINNING; THENCE NORTH 67°28'06" EAST, 382.83 FEET TO THE TRUE POINT OF BEGINNING. City of Tukwila Page I I Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -13 of 55 Record Date:2/19/2025 2:56 PM King County, WA EXHIBIT B Permit [atlached] City of Tukwila Stortnwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -14 of 55 Record Date:2/19/2025 2:56 PM King County, WA DEVELOPMENT PERMIT Parcel No: 0323049045 Permit Number: D22-0186 Address: 10300 E MARGINAL WAYS Issue Date: 8/14/2023 Permit Expires On: 1/26/2025 Project Name: Prologis, LP Owner: Name: C/O PROLOGIS - RE TAX Address: 1800 WAZEE ST, DENVER, , 80202 Contact Person: Name: Angie Kim Address: Contractor: Name: SIERRA CONSTRUCTION CO INC. Address: 14800 NE NORTH WOODINVILLE WAY , WOODINVILLE, WA, 98072 License No: SIERRCC14SN8 Lender: Name: TBD Phone: Phone: (425) 487-5200 Expiration Date: 3/31/2026 Address: DESCRIPTION OF WORK: New tilt up industrial building Traffic Concurrency paid under C23-0017. Project Valuation: $22,615,739.88 Fees Collected: $580,371.81 Type of Fire Protection: Sprinklers: YES Fire Alarm: YES Type of Construction: III -B Occupancy per IBC: S-1 Electrical Service Provided by: Tukwila Water District: Tukwila Sewer District: Tukwila Fees Collected: Electrical Service Provided by: Water District: Sewer District: Current Codes adopted by the City of Tukwila: Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -15 of 55 Record Date:2/19/2025 2:56 PM King County, WA International Fire Code Edition: 2021 International Building Code Edition: 2021 National Electrical Code: 2023 International Residential Code Edition: 2021 WA Cities Electrical Code: 2023 International Mechanical Code Edition: 2021 WAC 296-46B: 2023 Uniform Plumbing Code Edition: 2021 WA State Energy Code: 2021 International Fuel Gas Code: 2021 Public Works Activities: Channelization/Striping: Curb Cut/Access/Sidewalk: Fire Loop Hydrant: Flood Control Zone: Hauling/Oversize Load: Land Altering: Volumes: Cut: 11400 Fill: 60000 Landscape Irrigation: Sanitary Side Sewer: Number: 0 Sewer Main Extension: Storm Drainage: 1 Street Use: 1 Water Main Extension: PRIVATE Water Meter: Yes All provisions of law and ordinances governing this work will be complied with, whether specified herein or not. The granting of this permit does not presume to give authority to violate or cancel the provisions of any other state or local laws regulating construction or the performance of work. This permit shall become null and void if the work is not commenced within 180 days for the date of issuance, or if the work is suspended or abandoned for a period of 180 days from the last inspection. PERMIT CONDITIONS: 1: Condition Notes 2: Work shall be installed in accordance with the approved construction documents, and any changes made during construction that are not in accordance with the approved construction documents shall be resubmitted for approval. 3: All permits and approved construction documents shall be kept at the site of work and shall be open to inspection by the Building Inspector until final inspection approval is granted. 4: The special inspections and verifications for concrete construction shall be as required by IBC Chapter 17, Table 1705.3. 5: The special inspections for steel elements of buildings and structures shall be required. All welding shall be done by a Washington Association of Building Official Certified welder. 6: Installation of high-strength bolts shall be periodically inspected in accordance with AISC specifications. 7: The special inspection of bolts to be installed in concrete prior to and during placement of concrete. 8: When special inspection is required, either the owner or the registered design professional in responsible charge, shall employ a special inspection agency and notify the Building Official of the appointment prior to the first building inspection. The special inspector shall furnish inspection reports to the Building Official in a timely manner. Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -16 of 55 Record Date:2/19/2025 2:56 PM King County, WA 9: A final report documenting required special inspections and correction of any discrepancies noted in the inspections shall be submitted to the Building Official. The final inspection report shall be prepared by the approved special inspection agency and shall be submitted to the Building Official prior to and as a condition of final inspection approval. 10: New suspended ceiling grid and light fixture installations shall meet the seismic design requirements for nonstructural components. ASCE 7, Chapter 13. 11: Partition walls shall not be tied to a suspended ceiling grid. All partitions greater than 6 feet in height shall be laterally braced to the building structure. Such bracing shall be independent of any ceiling splay bracing. 12: Truss shop drawings shall be provided with the shipment of trusses delivered to the job site. Truss shop drawings shall bear the seal and signature of a Washington State Professional Engineer. Shop drawings shal be maintained on the site and available to the building inspector for inspection purposes. 13: All construction shall be done in conformance with the Washington State Building Code and the Washington State Energy Code. 14: Notify the City of Tukwila Building Division prior to placing any concrete. This procedure is in addition to any requirements for special inspection. 15: All wood to remain in placed concrete shall be treated wood. 16: All rack storage requires a separate permit issued through the City of Tukwila Permit Center. Rack storage over 8 -feet in height shall be anchored or braced to prevent overturning or displacement during seismic events. The design and calculations for the anchorage or bracing shall be prepared by a registered professional engineer licensed in the State of Washington. Periodic special inspection is required during anchorage of storage racks 8 feet or greater in height. 17: There shall be no occupancy of a building until final inspection has been completed and approved by Tukwila building inspector. No exception. 18: A Certificate of Occupancy shall be issued for this building upon final inspection approval by Tukwila building inspector. 19: Water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion. Strapping shall be at points within the upper one-third and lower one-third of the water heater's vertical dimension. A minimum distance of 4 -inches shall be maintained above the controls with the strapping. 20: All plumbing and gas piping work shall be inspected and approved under a separate permit issued by the City of Tukwila Building Department (206-431-3670). 21: All electrical work shall be inspected and approved under a separate permit issued by the City of Tukwila Permit Center. 22: Preparation before concrete placement: Water shall be removed from place of deposit before concrete is placed unless a tremie is to be used or unless otherwise permitted by the building official. All debris and ice shall be removed from spaces to be occupied by concrete. 23: VALIDITY OF PERMIT: The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of the building code or of any other ordinances of the City of Tukwila. Permits presuming to give authority to violate or cancel the provisions of the code or other ordinances of the City of Tukwila shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the Building Official from requiring the correction of errors in the construction documents and other data. 24: Under RCW 18.106.440 and RCW 18.27.110 the City of Tukwila is required to provide this written notice to the building permit applicant that there are contractor registration laws and the potential risk and monetary liability to the homeowner for using an unregistered contractor. 25: All mechanical work shall be inspected and approved under a separate permit issued by the City of Tukwila Permit Center (206/431-3670). 26: DEVELOPMENT FIRE CONDITIONS:D22-0186 NEW TILT UP APPROVED - FIRE AND PARK IMPACT FEES APPLY - The design, construction, and use of the building shall comply with the 2018 Washington State Fire Code Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -17 of 55 Record Date:2/19/2025 2:56 PM King County, WA (WSFC) and Tukwila Municipal Code 16.16. - FIRE ACCESS ROAD SURFACE: The surface shall be constructed of asphalt or concrete capable of supportingthe imposed load of fire apparatus weighing at least 85,000 lbs. -AERIAL FIRE ACCESS LANE NEEDS TO SUPPORT AERIAL OUTRIGGER POINT -LOADING. ANY UNDERGROUND TANKS WILL ALSO NEED TO SUPPORT AERIAL OUTRIGGER POINT -LOADING. - Fire Extinguisher type, spacing, and quantities for this occupancy shall comply with the 2018 Washington State Fire Code (WSFC). - Portable fire extinguishers, not housed in cabinets, shall be installed on the hangers or brackets supplied. Hangers or brackets shall be securely anchored to the mounting surface in accordance with the manufacturer's installation instructions. Portable fire extinguishers having a gross weight not exceeding 40 pounds (18 kg) shall be installed so that its top is not more than 5 feet (1524 mm) above the floor. Hand- held portable fire extinguishers having a gross weight exceeding 40 pounds (18 kg) shall be installed so that its top is not more than 3.5 feet (1067 mm) above the floor. The clearance between the floor and the bottom of the installed hand-held extinguishers shall not be less than 4 inches (102 mm). (IFC 906.7 and IFC 906.9) - Automatic gates shall be "CLICK 2 ENTER" for Emergency Vehicle Access. - Fire Alarm notification must remain visible to aisleways and audible throughout the facility. Any changes or alterations that need to be made in order for the fire alarm system to be in compliance with N FPA 72 (2019 Edition), this project will require a separate FIRE ALARM PERMIT. - Any obstructions of the fire sprinkler system or any modifications of the fire sprinkler system will require a separate FIRE SPRINKLER PERMIT. Any changes or alterations that need to be made in order for the fire sprinkler system to be in compliance with NFPA 13 (2019 Edition), this project will require a separate FIRE SPRINKLER PERMIT. - The total number of fire extinguishers required for an ordinary hazard occupancy with Class A fire hazards is calculated at one extinguisher for each 1,500 sq. ft. of area. The travel distance to any fire extinguisher must be 75' or less. The extinguisher(s) should be of the "All -Purpose" (3A, 406: C) dry chemical type. - When the Fire Alarm control panel is located inside a room, the outside of the door shall have a sign in one -inch letters that reads "Fire Alarm" or "Fire Alarm Control." - A new Fire Department KNOX eLock key box shall be provided and mounted on the address side of the building (adjacent to the main entrance) at approximately 60" high. The KNOX eLock can be either a SURFACE or FLUSH mount style. This box shall not only have access keys for the building but shall also include access keys to rooms containing the Fire Alarm Control Panel, Sprinkler Risers, Emergency Responder Radio Repeaters, and Electrical Panels. If there are access codes and/or other devices that are needed for the building's fire protection systems, those items shall also be in the KNOX box. For more information about the new KNOX eLock Rapid Entry System, or to purchase a KNOX eLock retrofit kit (part #: KLS-8800L), or to buy a KNOX eLock Key Box, please use this link: https://www.KnoxBox.com/22324 If you purchase a KNOX eLock retrofit kit, that item will be sent directly to the Fire Marshal's Office, so our staff can install the retrofit kit in your existing KNOX box. Some large buildings may require more than one KNOX box. - When the Sprinkler Riser is located inside a room or building, the outside of the doors leading to the Sprinkler Riser shall have a sign in one -inch letters that reads "FIRE SPRINKLER RISER" or "FIRE SPRINKLER RISER ROOM." - COMMERCIAL FIRE SPRINKLER SYSTEM REQUIRED. FIRE SPRINKLER DESIGN, INSTALLATION, AND TESTING Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -18 of 55 Record Date:2/19/2025 2:56 PM King County, WA SHALL BE IN ACCORDANCE WITH THE 2018 EDITION OF THE WA STATE FIRE CODE, NFPA 13 (2019 EDITION), AND TUKWILA MUNICIPAL 16.42. - THE FDC SHALL BE PAINTED RED WITH THE BUILDING ADDRESS STENCILED VERTICALLY IN 3" WHITE CONTRASTING NUMBERS. - THE FIRE SPRINKLER FDC REQUIRES A 30 DEGREE DOWNWARD BEND AND LOCKING KNOX 5" STORZ CAP. FDC PORT SHALL FACE IN THE DIRECTION OF THE MAIN ENTRANCE. - A 41 X 4'W REINFORCED CEMENT PAD SHALL BE POURED AROUND THE FDC. - A FIRE HYDRANT SHALL BE WITHIN 50' OF THE FDC AND LOCATED ON THE SAME SIDE OF THE STREET AS THE FDC. - By line of vehicular travel, a fire hydrant must be no further than 150 feet from a structure; and no portion of a structure to be over 300 feet from fire hydrant. (TMC 14.24) - When subject to vehicular damage, protective guard posts or curbs are required around all gas meters, electrical transformers, sprinkler valves and hydrants. Posts and curbs are to be painted yellow. - ALL OTHER FIRE PERMITS NEED TO PASS INSPECTIONS, BEFORE A FIRE D -PERMIT FINAL INSPECTION CAN OCCUR. - A FIRE D PERMIT FINAL INSPECTION IS REQUIRED AT THE COMPLETION OF THIS PROJECT BUT IT WILL NEED TO BE COMPLETED BEFORE YOUR BUILDING DEPARTMENT FINAL INSPECTION. - To schedule the required FIRE D PERMIT FINAL with the Tukwila Fire Marshal's Office, please call 206-575- 4407. - ADDITIONAL FIRE PERMITS ARE REQUIRED FOR THIS PROJECT: *FIRE ALARM *FIRE SPRINKLER 27: ***PUBLIC WORKS PERMIT CONDITIONS*** 28: Prior to construction, all utilities in the vicinity shall be field located. NOTE: For City of Tukwila utility locates, call 811 or 1-800-424-5555. 29: The City of Tukwila has an undergrounding ordinance requiring the power, telecommunications, and cable service lines be underground from the point of connection on the pole to the house. 30: Temporary erosion control measures shall be implemented as the first order of business to prevent sedimentation off-site or into existing drainage facilities per Appendix D of the 2021 KCSWDM. 31: The site shall have permanent erosion control measures in place as soon as possible after final grading has been completed and prior to the Final Inspection. 32: From May 1 through September 30, inspect and maintain temporary erosion prevention and sediment at least monthly. All disturbed areas of the site shall be permanently stabilized prior to final construction approval. 33: All private storm drain pipe shall be either concrete or reinforced ADS pipe. Treated corrugated metal pipe may be used for detention facilities. 34: The property owner is responsible for the maintenance of its storm drainage system and, for this purpose, shall have a maintenance plan in place and the responsibility for maintenance assigned prior to Public Works final. 35: A water quality device is required for the storm drain system in the parking lot unless proof of existing water quality device is submitted. 36: A double detector check valve assembly is required for the fire lines. 37: The applicant shall install a Washington State Health Department approved backflow device between the fire hydrant and the temporary water meter. Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -19 of 55 Record Date:2/19/2025 2:56 PM King County, WA 38: All double check valve assemblies shall be approved by the State Department of Health. 39: Prior to Public Works Final, provide storm drainage as -built plan, storm drainage maintenance plan and responsibility for maintenance assigned for stormwater treatment and flow control BMPs/Facilities. 40: Applicant shall execute and submit a King County Non -Residential Sewer Use Certification form before building/plumbing permit final and list only new plumbingfixture units and not the ones replaced in kind. Located here https://www.tukwilawa.gov/wp-content/uploads/PW-2020-NON-RES-FINAL-FORM.pdf or 41: As builts - Record Drawings & As-builts shall be submitted for review prior to scheduling a Public Works Final Inspection. Record drawings shall accurately reflect design revisions that were made to the approved plans during construction. The record drawings shall locate all existing and abandoned utilities encountered during construction, but not shown on the approved plans. A Washington State registered professional engineer of record shall approve the record drawings. Each sheet of the record drawings shall be stamped, signed, and dated by a professional civil engineer. As -built survey information provided on a record drawing shall be provided by a Professional Land Surveyor currently licensed in the State of Washington, who certifies that the as -built survey and revisions to the Record Drawings were performed under the surveyor's direction. Record drawings shall include language that reads: "I hereby declare that the horizontal and vertical locations of the vault/ handhole/ infrastructure shown hereon is the result of a field survey performed by me or under my direction." The owner/agent shall provide record drawings on 4.0 mil double matte mylar drafting film (24" by 36") and in AutoCAD format and PDF on CD (or DVD). Each drawing, except for the digital file, shall bear the engineer and the surveyor stamps, signed, and dated. 42: A separate permit for the 10" DDCVA to be installed inside the building is no longer required. Installation and applicable inspections can be done under the building permit. 43: All proposed signage is subject to separate Sign Permit approval. No signage shall be installed without an approved Sign Permit, per TMC 19.12.020. 44: To space out the large oak trees, please swap the location of the relocated Oregon Oak (delta 8) with one of the adjacent trees to two (2) trees over to the left or the right in this location. PERMIT INSPECTIONS REQUIRED Permit Inspection Scheduling: https:Htukw-egov.aspgov.com/BP/index.html BACKFLOW - WATER BUILDING FINAL" CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB CONCRETE SLAB Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -20 of 55 Record Date:2/19/2025 2:56 PM King County, WA DAMPPROOF AND WATERPROOF EMERGENCY LIGHTING ENERGY EFF CERT EROSION MEASURES EROSION MEASURES EROSION MEASURES EROSION MEASURES EROSION MEASURES EROSION MEASURES FNL EXT ROOFING INSUL FIRE D PERMIT FINAL FIRE FINAL FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FIRE LOOP HYDRANT FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING FOOTING DRAINS FOUNDATION WALL FOUNDATION WALL FOUNDATION WALL Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -21 of 55 Record Date:2/19/2025 2:56 PM King County, WA FOUNDATION WALL FOUNDATION WALL FOUNDATION WALL FOUNDATION WALL FRAMING FRAMING FRAMING FRAMING FRAMING FRAMING GAS PIPING FINAL GLAZING LATH—GYPSUM BOARD LATH—GYPSUM BOARD LATH—GYPSUM BOARD LIGHTING EQUIP—CONT PAVING AND RESTORE PAVING AND RESTORE PIPE INSULATION PLANNING FINAL PRE -CONSTRUCTION BLDG PUBLIC WORKS FINAL PUBLIC WORKS PRE -CON ROOF SHEATHING ROOF SHEATHING SANITARY SIDE SEWER SANITARY SIDE SEWER SANITARY SIDE SEWER SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SEWER MAIN EXTENSION SI-EPDXY—EXP CONC SI-EPDXY—EXP CONC SI-REBAR REINF Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -22 of 55 Record Date:2/19/2025 2:56 PM King County, WA SLAB REINFORCING SOILS STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORM DRAINAGE STORMWATER COVENANTS SUSPENDED CEILING SUSPENDED CEILING WALL INSULATION WALL INSULATION WALL INSULATION WALL INSULATION WALL INSULATION WALL INSULATION WALL INSULATION WALL INSULATION WATER MAIN EXT WATER MAIN EXT WATER MAIN EXT WATER MAIN EXT WATER MAIN EXT WATER METER- PERM WATER METER- PERM Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -23 of 55 Record Date:2/19/2025 2:56 PM King County, WA DEVELOPMENT PERMIT Parcel No: 0323049080 Permit Number: D23-0199 Address: 10400 E MARGINAL WAYS Issue Date: 12/3/2024 Permit Expires On: 6/1/2025 Project Name: Emerald Gateway- Bldg 3 Owner: Name: Nick Cox Address: CA, Contact Person: Name: Debie Triani Address: 600 Grand Ave Suite 302, Oakland, CA, 94610 Contractor: Name: SIERRA CONSTRUCTION CO INC. Address: 14800 NE NORTH WOODINVILLE WAY , WOODINVILLE, WA, 98072 License No: SIERRCC145N8 Lender: Name: TBD Phone: (949) 862-2113 Phone: (425) 487-5200 Expiration Date: 3/31/2026 Address: DESCRIPTION OF WORK: Construction of a new 144,352 SF speculative building including 3,510 SF of speculative office TI and site improvements. Project Valuation: $7,693,193.33 Fees Collected: $163,004.43 Type of Fire Protection: Sprinklers: YES Fire Alarm: YES Type of Construction: III -B Occupancy per IBC: S-1 Electrical Service Provided by: Tukwila Water District: Tukwila Sewer District: Tukwila Fees Collected: Electrical Service Provided by: Water District: Sewer District: Current Codes adopted by the City of Tukwila: Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -24 of 55 Record Date:2/19/2025 2:56 PM King County, WA International Fire Code Edition: 2021 International Building Code Edition: 2021 National Electrical Code: 2023 International Residential Code Edition: 2021 WA Cities Electrical Code: 2023 International Mechanical Code Edition: 2021 WAC 296-46B: 2023 Uniform Plumbing Code Edition: 2021 WA State Energy Code: 2021 International Fuel Gas Code: 2021 Public Works Activities: Channelization/Striping: Curb Cut/Access/Sidewalk: Fire Loop Hydrant: Flood Control Zone: Hauling/Oversize Load: Land Altering: Volumes: Cut: 10000 Fill: 10000 Landscape Irrigation: Sanitary Side Sewer: Number: 0 Sewer Main Extension: Storm Drainage: 1 Street Use: 1 Water Main Extension: PRIVATE Water Meter: No All provisions of law and ordinances governing this work will be complied with, whether specified herein or not. The granting of this permit does not presume to give authority to violate or cancel the provisions of any other state or local laws regulating construction or the performance of work. This permit shall become null and void if the work is not commenced within 180 days for the date of issuance, or if the work is suspended or abandoned for a period of 180 days from the last inspection. PERMIT CONDITIONS: 1: Condition Notes 2: Work shall be installed in accordance with the approved construction documents, and any changes made during construction that are not in accordance with the approved construction documents shall be resubmitted for approval. 3: All permits and approved construction documents shall be kept at the site of work and shall be open to inspection by the Building Inspector until final inspection approval is granted. 4: The special inspections and verifications for concrete construction shall be as required by IBC Chapter 17, Table 1705.3. 5: The special inspections for steel elements of buildings and structures shall be required. All welding shall be done by a Washington Association of Building Official Certified welder. 6: Installation of high-strength bolts shall be periodically inspected in accordance with AISC specifications. 7: The special inspection of bolts to be installed in concrete prior to and during placement of concrete. 8: When special inspection is required, either the owner or the registered design professional in responsible charge, shall employ a special inspection agency and notify the Building Official of the appointment prior to the first building inspection. The special inspector shall furnish inspection reports to the Building Official in a timely manner. Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -25 of 55 Record Date:2/19/2025 2:56 PM King County, WA 9: A final report documenting required special inspections and correction of any discrepancies noted in the inspections shall be submitted to the Building Official. The final inspection report shall be prepared by the approved special inspection agency and shall be submitted to the Building Official prior to and as a condition of final inspection approval. 10: New suspended ceiling grid and light fixture installations shall meet the seismic design requirements for nonstructural components. ASCE 7, Chapter 13. 11: Partition walls shall not be tied to a suspended ceiling grid, All partitions greater than 6 feet in height shall be laterally braced to the building structure. Such bracing shall be independent of any ceiling splay bracing. 12: Truss shop drawings shall be provided with the shipment of trusses delivered to the job site. Truss shop drawings shall bear the seal and signature of a Washington State Professional Engineer. Shop drawings shall be maintained on the site and available to the building inspector for inspection purposes. 13: Insulating materials, where exposed as installed in buildings of any type of construction, shall have a flame spread index of not more than 25 and a smoke development index of not more than 450. Where facings are installed in concealed spaces in buildings of Type III, IV, or V construction, the flame spread and smoke - developed limitations do not apply to facings, that are installed behind and in substantial contact with the unexposed surface of the ceiling, wall or floor finish. 14: Subgrade preparation including drainage, excavation, compaction, and fill requirements shall conform strictly with the recommendations given in the soils report. Special inspection is required. 15: All construction shall be done in conformance with the Washington State Building Code and the Washington State Energy Code. 16: Structural Observations in accordance with I.B.C. Section 1709 is required. At the conclusion of the work included in the permit, the structural observer shall submit to the Building Official a written statement that the site visits have been made and identify any reported deficiencies which, to the best of the structural observer's knowledge, have not been resolved. 17: Notify the City of Tukwila Building Division prior to placing any concrete. This procedure is in addition to any requirements for special inspection. 18: Masonry construction shall be special inspected. 19: All rack storage requires a separate permit issued through the City of Tukwila Permit Center. Rack storage over 8 -feet in height shall be anchored or braced to prevent overturning or displacement during seismic events. The design and calculations for the anchorage or bracing shall be prepared by a registered professional engineer licensed in the State of Washington. Periodic special inspection is required during anchorage of storage racks 8 feet or greater in height. 20: There shall be no occupancy of a building until final inspection has been completed and approved by Tukwila building inspector. No exception. 21: A Certificate of Occupancy shall be issued for this building upon final inspection approval by Tukwila building inspector. 22: Water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion. Strapping shall be at points within the upper one-third and lower one-third of the water heater's vertical dimension. A minimum distance of 4 -inches shall be maintained above the controls with the strapping. 23: All plumbing and gas piping work shall be inspected and approved under a separate permit issued by the City of Tukwila Building Department (206-431-3670). 24: All electrical work shall be inspected and approved under a separate permit issued by the City of Tukwila Permit Center. 25: VALI DITYOF PERMIT: The issuance orgranting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of the building code or of any other ordinances of the City of Tukwila. Permits presuming to give authority to violate or cancel the provisions of the code or other ordinances of the City of Tukwila shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the Building Official from requiring the correction of errors in the construction documents and other data. 26: All mechanical work shall be inspected and approved under a separate permit issued by the City of Tukwila Permit Center (206/431-3670). Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -26 of 55 Record Date:2/19/2025 2:56 PM King County, WA 27: FIRE CONDITIONS - A new Fire Department KNOX eLock key box shall be provided and mounted on the address side of the building (adjacent to the main entrance) at approximately 60" high. The KNOX eLock can be either a SURFACE or FLUSH mount style. This box shall not only have access keys for the building but shall also include access keys to rooms containing the Fire Alarm Control Panel, Sprinkler Risers, Emergency Responder Radio Repeaters, and Electrical Panels. If there are access codes and/or other devices that are needed for the building's fire protection systems, those items shall also be in the KNOX box. Some large buildings may require more than one KNOX box. - FIRE SPRINKLER SYSTEM REQUIRED. FIRE SPRINKLER DESIGN, INSTALLATION, AND TESTING SHALL BE IN ACCORDANCE WITH THE 2018 EDITION OF THE WA STATE FIRE CODE AND NFPA 13 (2019 EDITION). - FIRE ALARM SYSTEM REQUIRED. FIRE ALARM DESIGN, INSTALLATION, AND TESTING SHALL BE IN ACCORDANCE WITH THE 2018 EDITION OF THE WA STATE FIRE CODE AND NFPA 72 (2019). - EMERGENCY RESPONDER RADIO COVERAGE REQUIRED. INSTALLATION AND TESTING SHALL BE IN ACCORDANCE WITH TMC 16.16. 28: ***PUBLIC WORKS PERMIT CONDITIONS*** 29: Prior to construction, all utilities in the vicinity shall be field located. NOTE: For City of Tukwila utility locates, call 811 or 1-800-424-5555. 30: The City of Tukwila has an undergrounding ordinance requiring the power, telecommunications, and cable service lines be underground from the point of connection on the pole to the house. 31: Temporary erosion control measures shall be implemented as the first order of business to prevent sedimentation off-site or into existing drainage facilities per Appendix D of the 2021 KCSWDM. 32: The site shall have permanent erosion control measures in place as soon as possible after final grading has been completed and prior to the Final Inspection. 33: From October 1 through April 30, cover any slopes and stockpiles that are 3H:1V or steeper and have a vertical rise of 10 feet or more and will be unworked for greater than 12 hours. During this time period, cover or mulch other disturbed areas, if they will be unworked more than 2 days. Covered material must be stockpiled on site at the beginning of this period. Inspect and maintain this stabilization weekly and immediately before, during and following storms. 34: From May 1 through September 30, inspect and maintain temporary erosion prevention and sediment at least monthly. All disturbed areas of the site shall be permanently stabilized prior to final construction approval. 35: Downspouts, driveway, patio and drainage from other impervious areas shall be collected in an on-site storm drain system. Drains shall be 4" minimum diameter, PVC schedule 40 or corrugated poly ethylene pipe with a minimum 1% slope for gravity discharge to location approved by the Public Works Department. Downspouts shall not connect to footing drains. Footing drain and downspouts may share a single discharge pipe downstream of the lowest footing drain. 36: All private storm drain pipe shall be either concrete or reinforced ADS pipe. Treated corrugated metal pipe may be used for detention facilities. 37: The property owner is responsible for the maintenance of its storm drainage system and, for this purpose, shall have a maintenance plan in place and the responsibility for maintenance assigned prior to Public Works final, 38: Prior to Public Works Final, provide storm drainage as -built plan, storm drainage maintenance plan and responsibility for maintenance assigned for stormwater treatment and flow control BMPs/Facilities. 39: Applicant shall execute and submit a King County Non -Residential Sewer Use Certification form before building/plumbing permit final and list only new plumbing fixture units and not the ones replaced in kind. Located here https://www.tukwilawa.gov/wp-content/uploads/PW-2020-NON-RES-FINAL-FORM.pdf or 40: A double detector check valve assembly is required for the fire lines. 41: A separate permit for the 10" DDCVA to be installed inside the building is no longer required. Installation and applicable inspections can be done under the building permit. 42: All double check valve assemblies shall be approved by the State Department of Health. Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -27 of 55 Record Date:2/19/2025 2:56 PM King County, WA 43: Record Drawings & As-builts shall be submitted for review prior to scheduling a Public Works Final Inspection. Record drawings shall accurately reflect design revisions that were made to the approved plans during construction. The record drawings shall locate all existing and abandoned utilities encountered during construction, but not shown on the approved plans. A Washington State registered professional engineer of record shall approve the record drawings. Each sheet of the record drawings shall be stamped, signed, and dated by a professional civil engineer. As -built survey information provided on a record drawing shall be provided by a Professional Land Surveyor currently licensed in the State of Washington, who certifies that the as -built survey and revisions to the Record Drawings were performed under the surveyor's direction. Record drawings shall include language that reads: "I hereby declare that the horizontal and vertical locations of the vault/ handhole/ infrastructure shown hereon is the result of a field survey performed by me or under my direction." The owner/agent shall provide record drawings on 4.0 mil double matte mylar drafting film (24" by 36") and in AutoCAD format and PDF on CD (or DVD). Each drawing, except for the digital file, shall bear the engineer and the surveyor stamps, signed, and dated. 44: A water quality device is required for the storm drain system in the parking lot unless proof of existing water quality device is submitted. 45: From May 1 through September 30, inspect and maintain temporary erosion prevention and sediment at least monthly. All disturbed areas of the site shall be permanently stabilized prior to final construction approval. PERMIT INSPECTIONS REQUIRED Permit Inspection Scheduling: https://tukw-egov.aspgov.com/BP/index.html BACKFLOW - FIRE BUILDING FINAL" CONCRETE SLAB DAMPPROOF AND WATERPROOF EMERGENCY LIGHTING ENERGY EFF CERT EROSION MEASURES EROSION MEASURES FNL EXT ROOFING INSUL FIRE D PERMIT FINAL FOOTING FOOTING DRAINS FOUNDATION WALL FRAMING LATH—GYPSUM BOARD LOWEST FLOOR ELE PAVING AND RESTORE PIPE INSULATION PUBLIC WORKS FINAL PUBLIC WORKS PRE -CON ROOF SHEATHING ROOF—CEILING INSUL SANITARY SIDE SEWER SI -CAST -I N -P LACE Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -28 of 55 Record Date:2/19/2025 2:56 PM King County, WA SI -CONCRETE CONST SI -METAL PLATE CONN SI -OBS -SEISMIC REST SI-REBAR REINF SI-REINF STEEL -WELD SI -SEISMIC RESTIST SI -SOILS SI -STEEL CONST SI -WELDING STORM DRAINAGE SUSPENDED CEILING WALL INSULATION WATER MAIN EXT Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -29 of 55 Record Date:2/19/2025 2:56 PM King County, WA EXHIBIT C Stormwater Facility/BMP Site Plan l attacheal City of Tukwila Page 13 Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document: COV Rec: 5357.50 Page -30 of 55 Record Date:211912025 2:56 PM King County, WA Operations & Maintenance Plan with Schedule [attached[ City of Tukwila Page 14 Stormcvater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -31 of 55 Record Date:2/19/2025 2:56 PM Mug County, WA U) U) 141— /� Z L3 3HS33S ■ .... .. ...... . . —J' CO LO 11 0 r-- LO CO M C) �'� . ........ ... j jjlj ]_Jj, 00 C) L'1-11 1-J L'I 1-11 1, 1 .. . . ......... . .. ... ... .............. ... 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Instrument Number: 20250219000803 Document: COV Rec: 5357.50 Page-32 of 55 Record Date:211912025 2:56 PM King County, WA Instrument Number: 20250219000803 Document: COV Rec: 5357.50 Page -33 of 55 Record Date:211912025 2:56 PM King County, WA 143211S WIOAHON :S Instrument Number: 20250219000803 Document: COV Rec: 5357.50 Page -34 of 55 Record Date:211912025 2:56 PM King County, WA Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -35 of 55 Record Date:2/19/2025 2:56 PM King County, WA MAINTENANCE IMPORTANCE AND INTENT The importance of maintenance for the proper functioning of stormwater control facilities cannot be over- emphasized. A substantial portion of failures (clogging of filters, resuspension of sediments, loss of storage capacity, etc.) are due to inadequate maintenance. Stormwater BMP maintenance is essential to ensure that BMPs function as intended throughout their full life cycle. The fundamental goals of maintenance activities are to ensure the entire flow regime and treatment train designed for this site continue to fully function. For this site, these goals include the Owner: • Maintain designed stormwater infiltration capacity; • Maintain designed stormwater detention/retention volume; • Maintain ability of storm facility to attenuate flow rates; • Maintain ability to safely convey design stormwater flows; • Maintain ability to treat stormwater runoff quality; • Preserve soil and plant health, as well as stormwater flow contact with plant and soil systems; • Clearly identify systems so they can be protected; • Prevent large-scale or expensive stormwater system failures; • Prevent water quality violations or damage to downstream properties. In order to achieve these objectives, the following actions will be taken by Owner: • Stormwater treatment systems shall be maintained per the manufacturer's recommendations. • All facilities on the project site should be maintained on a regular basis of at least twice a year at an interval of every six months. • Catch basins should have the sediment removed when depth exceeds 60 percent of the sump depth, or 1.2 feet. • Trash and other debris shall be removed as necessary. • The entire stormwater treatment system shall be inspected at least once a year. During inspection, the storm system should be inspected for cracks or other damage in the pipes and structures. • A checklist of maintenance and inspection activities will be kept by Owner. • Records of these inspections will be kept and made available as needed, including the full inspection checklist. As noted, stormwater control facilities are crucial to operations for the building operation and systems of the jurisdiction. These plans are intended to ensure their continued proper operation. The proceeding maintenance guidelines come from the 2021 King County Surface Water Design Manual, Appendix A and the Oldcastle Infrastructure, Biopod website. These guidelines shall be adhered to for the maintenance of the stormwater control facilities. City of Tukwila Page 15 Stormwater Maintenance Declaration of Covenant Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -36 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A NtAtNTF.NANCE REQUIItFN1ENTS FOR FLOW CONTROL.. CONVEYA NICE, AND WQ FACILIT IFS NO. 4— CONTROL STRUCTURE/FLOW RESTRICTOR Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Structure Trash and debris Trash or debris of more than '/z cubic foot which No Trash or debris blocking or is located immediately in front of the structure potentially blocking entrance to opening or is blocking capacity of the structure by structure. more than 10%. Trash or debris in the structure that exceeds 'h No trash or debris in the structure. the depth from the bottom of basin to invert the lowest pipe into or out of the basin, Deposits of garbage exceeding 1 cubic foot in No condition present which would volume. attract or support the breeding of insects or rodents. Sediment Sediment exceeds 60% of the depth from the Sump of structure contains no bottom of the structure to the invert of the lowest sediment. pipe into or out of the structure or the bottom of the FROP-T section or is within 6 inches of the invert of the lowest pipe into or out of the structure or the bottom of the FROP-T section. Damage to frame Corner of frame extends more than'/ inch past Frame is even with curb. andlor lop slab curb face into the street (If applicable). Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks. cracks wider than '/. inch. Frame not sitting Flush on top slab, i.e., Frame is sitting flush on top slab. separation of more than''/, inch of the frame from the top slab. Cracks in walls or Cracks wider than %, inch and longer than 3 feet, Structure is sealed and structurally bottom any evidence of soil particles entering structure sound. through cracks. or maintenance person judges that structure is unsound. Cracks wider than '/ inch and longer than t foot No cracks more than '14 inch wide at at the joint of any inlet outlet pipe or any evidence the joint of inleVoudet pipe. of soil particles entering structure through cracks. Settlement/ Structure has settled more than 1 inch or has Basin replaced or repaired to design misalignment rotated more than 2 inches out of alignment. standards. Damaged pipejoints Cracks wider than '/,inch at the taint of the No cracks more than A -inch wide at inletJoutlet pipes or any evidence of soil entering the joint of inletfoudet pipes. the structure at the joint of the inlet/outfel pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations, Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Ladder rungs missing Ladder is unsafe due to missing rungs, Ladder meets design standards and or unsafe misalignment, rust, cracks, or sharp edges. allows maintenance person safe access. FROP-T Section Damage T section is not securely attached to structure T section securely attached to wall wall and outlet pipe structure should support at and outlet pipe. least 1,000Ibs of up or down pressure. Structure is not in upright position (allow up to Structure in correct position. 10% from plumb). Connections to outlet pipe are not watertight or Connections to outlet pipe are water show signs of deteriorated grout. tight: structure repaired or replaced and works as designed_ Any holes—other than designed holes—in the Structure has no holes other than structure. designed holes. Cleanout Gale Damaged or missing Cleanout gate is missing. Replace cleanout gate. 2021 Surface Water Design Manual – Appendix A 7.231202 1 A-7 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -37 of 55 Record Date:2/19/2025 2:56 PM King County, WA AI'PLNDIX A NMAIN,rF.N,\NCF. REQUIRE,vtEi 1TS 1=1OW CONTROL, CONVEYANCE.. AND WQ FACILITIES NO.4 - CONTROL STRUCTUREIFLOW RESTRICTOR Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Cleanout gale is not watertight. Gale is watertight and works as designed. Gate cannot be moved up and down by one Gale moves up and down easily and maintenance person. is watertight. Chain/rod leading to gale is missing or damaged. Chain is in place and works as designed. Orifice Plate Damaged or missing Control device is not working properly due to Plate is in place and works as missing, out of place, or bent orifice plate. designed_ Obstructions Any trash. debris, sediment, or vegetation Plate is free of all obstructions and blocking the plate. works as designed. Overflow Pipe Obstructions Any trash or debris bluckirig (or hdviny the Pipe is free of dll ubslruutiuns and potential of blocking) the overflow pipe. works as designed. Deformed or Lip of overflow pipe is bent or deformed. Overflow pipe does not allow damaged lip overflow at an elevation lower than design Inlet/Oudel Pipe Sediment Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris to pipes. pipes (includes floalables and non-floatables). Damaged Cracks wider than %finch at the joint of the No cracks more than 'A -inch wide at inlet/oudel pipes or any evidence of soil entering the joint of the inleVoullet pipe. at the joints of the inlet/outlet pipes. Metal Grates Unsafe grate opening Grate with opening wider than '16 inch. Grate opening meets design (If Applicable) standards. Trash and debris Trash and debris that is blocking more than 20% Grate free of trash and debris. of grate surface. Damaged or missing Grate missing or broken member(s) of the grate. Grate is in place and meets design standards. Manhole Cover/Lid Cover/lid not in place Cover/lid is missing or only partially in place. Cover/lid protects opening to Any open structure requires urgent structure. maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Working maintenance person with proper tools. Bolts cannot be sealed. Self-locking cover/lid does not work. Coverllid difficult to One maintenance person cannot remove CoverAid can be removed and Remove coverflid after applying 80 lbs. of lift. reinstalled by one maintenance person_ 7l2:i202 1 2021 Surface Water Design Manual — Appendix A A-8 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -38 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPF.NDIN A MAl\'TLNANCli REQUIRENfFINTS FOR FLOW CONTROL CONVl:YANC'E, AND \VQ FACILITIES NO.5 — CATCH BASINS AND MANHOLES Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Structure Sediment Sediment exceeds 60% of the depth from the Sump of catch basin contains no bottom of the catch basin to the invert of the sediment. lowest pipe into or out of the catch basin or is within 6 inches of the invert of the lowest pipe into or out of the catch basin. Trash and debris Trash or debris of more than V, cubic fool which No Trash or debris blocking or is Ionated immediately in front of the catch basin potentially blocking entrance to opening or is blocking capacity of the catch basin catch basin. by more than 10%. Trash or debris in the catch basin that exceeds No trash or debris in the catch basin. '13 the depth from the bottom of basin to invert the lowest pipe into or out of the basin. Dead animals or vegetation that could generate No dead animals or vegetation odors that could cause complaints or dangerous present within catch basin. gases (e.g., methane). Deposits of garbage exceeding 1 cubic fool in No condition present which would volume. attract or support the breeding of insects or rodents. Damage to frame Corner of frame extends more than % inch past Frame is even with curb. andlor lop slab curb face into the street (If applicable). Top slab has holes larger than 2 square inches or Top slab is free of holes and cracks. cracks wider than 'A inch. Frame not sitting flush on lop slab, i.e., Frame is silting flush on top slab. separation of more than i inch of the frame from the top slab. Cracks in walls or Cracks wider than Y---. inch and longer than 3 feel, Catch basin is sealed and is bottom any evidence of soil particles entering catch structurally sound. basin through cracks, or maintenance person judges that catch basin is unsound. Cracks wider than 1S inch and longer than 1 foot No cracks more than Vi inch wide at at the joint of any inleUoudel pipe or any evidence the joint of inleUoudel pipe. of soil particles entering catch basin through cracks. Settlement/ �- Catch basin has settled more than 1 inch or has Basin replaced or repaired to design misalignment rotated more than 2 inches out of alignment. standards. Damaged pipe joints Cracks wider than !,*-inch at the joint of the No cracks more than 'A -inch wide at inlet/outlet pipes or any evidence of soil entering the joint of inleuoutlet pipes. the catch basin at the joint of the inletloudel pipes. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. InleUOudet Pipe Sediment Sediment filling 20% or more of the pipe. InleUoullel pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inleUoullet No [rash or debris in pipes. pipes (includes floalables and non-floatables). Damaged Cracks wider than ',-winch at the joint of the No cracks more than'/ -inch wide at inleUoudel pipes or any evidence of soil entering the joint of the inlelloutlet pipe. at the joints of the inletloudel pipes. 2021 Surface Nater Design Manual - Appendix A 7/2 2021 A-9 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -39 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A jvIAfNTENANCF RFQUIRENIFNTS FLOW CONTR*L. CONVEYANCE„ AND WQ FACILITIES NO. 5 -CATCH BASINS AND MANHOLES Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Metal Grates Unsafe grate opening Grate with opening wider than '1e inch. Grate opening meets design (Catch Basins) standards. Trash and debris Trash and debris that is blocking more than 20% Grate free of trash and debris. of grate surface. Damaged or missing Grate missing or broken member(s) of the grate. Grate is in place and meets design Any open structure requires urgent standards. maintenance. Manhole Cover/Lid Coverllid not in place Cover/lid is missing or only partially in place. Cover/lid protects opening to Any open structure requires urgent structure. maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. Not Working maintenance person with proper tools. Bolts cannot be sealed. Self-locking cover/lid does not work. Covedlid difficult to One maintenance person cannot remove Coverllid can be removed and Remove cover/lid after applying 80 lbs. of lift. reinstalled by one maintenance person. 7{23/2021 2021 Surface Water Design Manual — Appendix A A -t0 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -40 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A titAINTENANCF. RF:QUIRENIENTS FOR FLOW CONTROL. CONVEYANCE, AND WQ FACILITIES NO.6 — CON Maintenance Component Pipes Ditches VEYANCE PIPES AND DITCHES Defect or Problem Conditions When Maintenance is Needed Results Expected When Maintenance is Performed Sediment & debris Accumulated sediment or debris that exceeds Water (lows freely through pipes. accumulation 26% of the diameter of the pipe. Vegetationlroots Vegetationlroots that reduce free movement of Water flows freely through pipes. water through pipes. Contaminants and Any evidence of contaminants or pollution such (Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Damage to protective Prolective coaling is damaged: rust or corrosion Pipe repaired or replaced. coaling or corrosion is weakening the structural integrity of any part of pipe. Damaged Any dent that decreases the cross section area of Pipe repaired or replaced. pipe by more than 20% or is determined to have weakened structural integrity of the pipe. Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feel of ditch and slopes. ditches. Sediment Accumulated sediment that exceeds 20% of the Ditch cleaned/flushed of all sediment accumulation design depth, and debris so that it matches design. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed accorcling to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations_ Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Vegetation Vegetation that reduces free movement of water Water flows freely through ditches. through ditches. Erosion damage to Any erosion observed on a ditch slope. Slopes are not eroding. slopes Rock lining out of One layer or less of rock exists above native soil Replace rocks to design standards. place or missing (If area 5 square feet or more. any exposed native Applicable) soil. 2021 Suffice Water De i¢n Nianual — Appendix A 7!29/10} I A-11 2021 Suffice Water De i¢n Nianual — Appendix A 7!29/10} I A-11 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -41 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A MAINTENANCE. REQUIREMENTS FLOW CONTROL, CONVEYANCE. AND WQ FACILI-rit-.S NO.9 - FENCING Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Erosion or holes Erosion or holes more than 4 inches high and 12- No access under the fence. under fence 18 inches wide permitting access through an opening under a fence. Wood Posts. Boards Missing or damaged Missing or broken boards, post out of plumb by No gaps on fence due to missing or and Cross Members parts more than 6 inches or cross members broken broken boards, post plumb to within V4 inches, cross members sound. Weakened by rotting Any part showing structural deterioration due to All parts of fence are structurally or insects rotting or insect damage sound. Damaged or failed Concrete or metal attachments deteriorated or Post foundation capable of post foundation unable to support posts. supporting posts even in strong wind. Metal Posts. Rails Damaged parts Post out of plumb more than 6 inches. Post plumb to within 1 A inches. and Fabric Top rails bent more than 6 inches. Top rail free of bends greaterthan 1 inch. ence (including post, top rails, and Fence is aligned and meets design than 1 fool out of design alignment. standards. ose tension wire. FPartorgrpoarrfels Tension wire in place and holding fabric. Deteriorated paint or that have a rusting or scaling Structurally adequate posts or parts prolective coating condition that has affected structural adequacy. with a uniform protective coating. Openings in fabric Openings in fabric are such that an 8 -inch Fabric mesh openings within 50% of diameter ball could fit through, grid size. 7/212021 2021 Surface Water Dcsign Manual — Appendix A A -1J Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -42 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A MAINlYNANCE REQUIRFNIFN'fS FOR FLOW CONTROL. CONVEYANCF., AND %VQ FACIUTIES NO. 10 - GATES/BOLLARDS/ACCESS BARRIERS Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component -J Maintenance is Performed Chain Link Fencing Damaged or missing Missing gate. Gates in place. Gate members Broken or missing hinges such [hat gate cannot Hinges intact and tubed. Gate is be easily opened and closed by a maintenance working freely. person. Gate is out of plumb more than 6 inches and Gate is aligned and vertical. more than t foot out of design alignment. Missing stretcher bar, stretcher bands, and lies. Stretcher bar, bands, and ties in place. Locking mechanism Locking device missing, non-functioning or does Locking mechanism prevents does not lock gate not link to all parts. opening of gate. Openings in fabric Openinys in fabric are such that an 8 -inch Fabric mesh upeninys within 50% of diameter ball could fit through. grid size. Bar Gate Damaged or missing Cross bar does not swing open or dosed, is Cross bar swings fully open and cross bar missing or is bent to where it does not prevent closed and prevents vehicle access. vehicle access. Locking mechanism Locking device missing, non-functioning or does Locking mechanism prevents does not lock gate not link to all parts. opening of gate. Support post Support post does not hold cross bar up. Cross bar held up preventing vehicle damaged access into facility. Bollards Damaged or missing Bollard broken, missing, does not fit into support No access for motorized vehicles [o hole or hinge broken or missing. get into facility. Does not lock Locking assembly or lock missing or cannot be No access for motorized vehicles to attached to lock bollard in place. get into facility. Boulders Dislodged Boulders not located to prevent motorized vehicle No access for motorized vehicles to i access. get into facility. Circumvented Motorized vehicles going around or between No access for motorized vehicles to boulders. get into facility. 2021 StlffolCC Water Design Manual - Appendix A W23,11?021 A-15 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -43 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIN A MAINTENANCE REQUIRFNII.NTS 1-I.OW CONTROL. CONVEY.ANC'E. AND WQ FACILITIES NO. 11- GROUNDS (LANDSCAPING) Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash or litter Any trash and debris which exceed 1 cubic foot Trash and debris cleared from site. per 1,000 square feet (this is about equal to the amount of trash it would take to fill up one standard size office garbage can). In general. there should be no visual evidence of dumping. Noxious weeds Any noxious or nuisance vegetation which may Noxious and nuisance vegetation constitute a hazard to County personnel or the removed according to applicable public. regulations. No danger of noxious vegetation where County personnel or the public might normally be. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMrls implemented if appropriate. No contaminants present other than a surface oil film. Grass/groundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a height. height no greater than 6 inches. Trees and Shrubs Hazard Any tree or limb of a tree identified as having a No hazard trees in facility. potential to fall and cause property damage or threaten human life. A hazard tree identified by a qualified arborist must be removed as soon as possible. Damaged Limbs or parts of trees or shrubs that are split or Trees and shrubs with less than 5 broken which affect more than 25/ of the total of total foliage with split or broken foliage of the tree or shrub. limbs. Trees or shrubs that have been blown down or No blown down vegetation or knocked over. knocked over vegetation. Trees or shrubs free of injury. Trees or shrubs which are not adequately Tree or shrub in place and supported or are leaning over, causing exposure adequately supported; dead or of the roots. diseased trees removed. 7123/2021 2021 Surface Water Dcsip Manual — Appendix A A-16 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -44 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A MAINTENANCE RF.QUIRFNIENTS 1"011 FLOW CONTROL. CONVEYANCE, AND WQ FACILITIES NO. 12 - ACCESS ROADS Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Trash and debris exceeds 1 cubic foot per 1.000 Roadway drivable by maintenance square feet (i.e.. trash and debris would fill up vehicles. one standards size garbage can). Debris which could damage vehicle tires or Roadway drivable by maintenance prohibit use of road. vehicles. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil rilm. Blocked roadway Any obstruction which reduces clearance above Roadway overhead clear to 14 feel road surface to less than 14 feet. high. Any obstruction restricting the access to a 10- to At least 12 -Foot of width on access 12 foot width for a distance of more than 12 feet road. or any point restricting access to less than a 10 foot width. Road Surface Erosion, settlement, Any surface defect which hinders or prevents Road drivaGe by maintenance potholes, soft spots, maintenance access vehicles. ruts Vegetation on road Trees or other vegetation prevent access to Maintenance vehicles can access surface facility by maintenance vehicles. facility. Shoulders and Erosion Erosion within 1 fool of the roadway more than 8 Shoulder free of erosion and Ditches inches wide and 6 inches deep. matching the surrounding road. Weeds and brush Weeds and brush exceed 18 inches in height or Weeds and brush cut to 2 inches in hinder maintenance access, height or cleared in such a way as to allow maintenance access. Modular Grid Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of Pavement pollution as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other Than a surface oil film. Damaged or missing Access surface compacted because of broken on Access road surface restored so missing modular block- road infiltrates. 2021 Surface Water Design vlanual — Appendix A 7/23/2021 A-17 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -45 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPEi 1DIX A MAINTENANCE RF.QUIRE:NIENTS FLOW CON fROI., CONVEYANCE. AND WQ FACILITIES N0.,21- STORMFILTER (CARTRIDGE TYPE) Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Facility Documentation Update facility inspection record after each Maintenance records are up to dale. inspection. Provide certification of replaced filler media. Filter media is certified to meet Slormfiller' specifications. Site Trash and debris Any trash or debris which impairs the function of Trash and debris removed from the facility. facility. Contaminants and Any evidence of contaminants or pollution such Materials removed and disposed of pollution as oils. gasoline, concrete slurries or paint. according to applicable regulations. Source control BMPs implemented if appropriate. No contaminants present other than a surface oil film. Life cycle System has not been inspected for three years. Facility is re -inspected and any needed maintenance performed. Vault Treatment Sediment on vault Greater than 2 inches of sediment. Vault is free of sediment. Area floor Sediment on lop of Greater than ''A inch of sediment. Vault is free of sediment. cartridges Multiple scum lines Thick or multiple scum lines above lop of Cause of plugging corrected, above lop of cartridges. Probably due to plugged canisters or canisters replaced if necessary, rartridgp.s iindeMrain manifold. Vault Structure Damage to wall. Cracks wider than/,inch and any evidence of Vault replaced or repaired to design Frame. Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or qualified inspection personnel determines the vault is not structurally sound. Baffles damaged Baffles corroding, cracking warping, and/or Repair or replace baffles to showing signs of failure as determined by specification. maintenance/inspection person. Filler Media Standing water in 9 inches or greater of static water in the vault for No standing water in vault 24 hours vault more than 24 hours following a rain event and/or after a rain event. overflow occurs frequently. Probably due to plugged filter media, underdrain or outlet pipe. Short circuding Flows do not properly enter filter cartridges. Flows go through filter media. Underdrains and Sediment/debris Underdrains or clean-ouls partially plugged or Underdrains and clean -outs free of Clean -Outs filled with sediment and/or debris. sediment and debris. Inlet/Oullet Pipe Sediment Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris in pipes. pipes (Includes floatables and non-floatables). Damaged Cracks wider than %cinch at the joint of the No cracks more than A -inch wide at inlet/outlet pipes or any evidence of soil entering the joint of the inlelfoutlet pipe. at the joints of the inlet/outlet pipes. Wrv� Access Manhole Cover/lid not in place Coverilid is missing or only partially i n place. Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools. Bolts cannot be sealed. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Coverllid can be removed and remove coverilid after applying 80 lbs of lift. reinstalled by one maintenance person. W21/2021 ?021 Surlacc Water Design Manuai —Appendix A-30 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -46 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIN A LIAINTENANCE REQUIREMENTS FOR FLOW CONTROL. CONVEYANCE. AND %VQ FACILITIES NO. 21- STORMFILTER (CARTRIDGE TYPE) Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. Large access Damaged or difficult Large access doors or plates cannot be Replace or repair access door so it doors/plate to open - openedfremoved using normal equipment. can opened as designed. Gaps doesn't cover Large access doors not flat and/or access Doors close net and cover access completely opening not completely covered. opening completely. Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to lift or rusted or plate. remove door or plate. Inspection Frequency Maintenance conditions are site-specific, Inspect Stormfilter facility for any depending on pollutant loading, maintenance deficiencies; maintain or replace as required per FIRST YEAR POST CONSTRUCTION Monthly established site-specific schedule during wet season, every other month during dry season and manufacturer's requirements. FOLLOWING FIRST YEAR: Continue monthly until site-specific frequency is established. then follow that schedule AT A MINIMUM. FOLLOWING FIRST YEAR: Annually (or quarterly if used as primary treatment) and following significant storms. 2021 Surface Water DesiSm Manual — Appendix A 7/2312021 A-31 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -47 of 55 Record Date:2/19/2025 2:56 PM King County, WA \PPF.NDIN A rvIAINTENANC F. REQUIRENIEN'1'S FLO\V CONTROL, CON VEYANC'F.. A14D WQ PAC IIATIES NO. 22 - BAFFLE OIUWATER SEPARATOR Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Any trash or debris which impairs the function of Trash and debris removed from the facility. facility. Contaminants and Floating oil in excess of 1 inch in first chamber. No contaminants present other than pollution any oil in other chambers or other contaminants a surface oil film. of any type in any chamber. Vault Treatment Sediment Sediment accumulates exceeds 6 inches in the No sediment in the vault. Area accumulation vault. Discharge water not Inspection of discharge water shows obvious Effluent discharge is clear. clear signs of poor water quality -effluent discharge from vault shows thick visible sheen. Trash or debris Any trash and debris accumulation in vault Vault is clear of trash and debris. accumulation (floalables and non-floalables). Oil accumulation Oil accumulations that exceed t inch, at the _ No visible oil depth on water. surface of the water in the oil/water separator chamber. Vault Structure Damage to Wall. Cracks wider than Z/ inch or evidence of soil Vault replaced or repaired to design Frame, Bottom, particles entering the structure through the specifications, and/or Top Slab cracks, or maintenance/inspection personnel determines that the vault is not structurally sound. Battles damaged Battles corroding. cracking. warping and/or Repair or replace battles to showing signs of failure as determined by specifications. maintenance inspection personnel. Gravity Drain Inoperable valve Valve will not open and close. Valve opens and closes normally. Valve won't seal Valve does not seal completely. Valve completely seals closed. Inlet/Oudel Pipe Sediment Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris in pipes. pipes (includes floalables and non-floatables). Damaged Cracks wider than i inch at the joint of the No cracks more than .-inch wide at inlet/outlet pipes or any evidence of soil entering the joint of the inlet/outlet pipe. at the joints of the inlet/outlet pipes. Access Manhole Cover/lid not in place Cover/lid is missing or only partially in place, Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools. Bolls cannot be seated. Self-locking cover/lid does not work. Covedlid difficult to One maintenance person cannot remove Cover/lid can be removed and remove coverllid after applying 80 lbs of lift. reinstalled by one maintenance person. Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. Large access Damaged or difficult Large access doors or plates cannot be Replace or repair access door so it doors/plate to open opened/removed using normal equipment. can opened as designed. Gaps, doesn't cover Large access doors not flat and/or access Doors close flat and cover access completely opening not completely covered. opening completely. Lifting Rings missing, Lifting rings not capable of lifting weight of door Lifting rings sufficient to lift or rusted or coverllid. remove cover/lid. 7/23/2021 2021 Surface Witter Design Manual _ ,Appendix A A-32 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -48 of 55 Record Date:2/19/2025 2:56 PM King County, WA APPENDIX A MAIN FENANCE REQUIRfMF.NTS FOR FLOW CONTROL. CONVEYANCE, AND WQ FACII.ITIF.S NO. 23 — COALESCING PLATE OICMIATER SEPARATOR Maintenance Defect Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Any trash or debris which impairs the function of Trash and debris removed from the facility. facility. Contaminants and Floating oil in excess of 1 inch in first chamber, No contaminants present other than pollution any oil in other chambers or other contaminants a surface oil film. of any type in any chamber. Vault Treatment Sediment Sediment accumulation of 6 inches or greater in No sediment in the forebay. Area accumulation in the the forebay. forebay Discharge water not Inspection of discharge water shows obvious Repair function of plates so effluent clear signs of poor water quality - effluent discharge is clear. from vault shows thick visible sheen. Trash or debris Trash and debris accumulation in vault Trash and debris removed from accumulation (floatables and non-floalables). vault. OJ accumulation Oil accumulation that exceeds 1 inch at the water No visible oil depth on water and surface in the in the coalescing plate chamber. coalescing plates clear or oil. Coalescing Plates Damaged Plate media broken, deformed, cracked and/or Replace that portion of media pack showing signs of failure. or entire plate pack depending on severity of failure. Sediment Any sediment accumulation which interferes with No sediment accumulation accumulation the operation of the coalescing plates. interfering with the coalescing plates. Vault Structure Damage to Wall. Cracks wider than'/ inch and any evidence of Vault replaced or repaired to design Frame. Bottom, soil particles entering the structure through the specifications. and/or Top Slab cracks, or maintenance inspection personnel determines that the vault is not structurally sound. Baffles damaged Baffles corroding, cracking, warping and/or Repair or replace baffles to showing signs of failure as determined by specifications. maintenanceiinspection person. Ventilation Pipes Plugged Any obstruction to the ventilation pipes. Ventilation pipes are clear. Shutoff Valve Damaged or Shutoff valve cannot be opened or closed. Shutoff valve operates normally. inoperable Inlet/Outlel Pipe Sediment Sedimenlfilling 20% or more of the pipe. InleUoullel pipes clear of sediment. accumulation Trash and debris Trash and debris accumulated in inlet/outlet No trash or debris in pipes. pipes (includes floalables and non-floatables). Damaged Cracks wider than ''/,inch at the joint of the No cracks more than '/.-inch wide at inlet/outlet pipes or any evidence of soil entering the joint of the inlet/outlet pipe. at the joints of the inlet outlet pipes, Access Manhole Cover/lid not in place Coverflid is missing or only partially in place. Manhole access covered. Any open manhole requires immediate maintenance. Locking mechanism Mechanism cannot be opened by one Mechanism opens with proper tools. not working maintenance person with proper tools. Bolts cannot be seated, Self-locking cover/lid does not work. Cover/fid difficult to One maintenance person cannot remove Coverflid can be removed and remove coverilid after applying 80 lbs of lift. reinstalled by one maintenance person. Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. 20'1 Surface Water Design klanual — Appendix A 7!23t2011 A-33 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -49 of 55 Record Date:2/19/2025 2:56 PM King County, WA 110 Oldcastle infrastructure" A CRH COMPANY ,N � _ H R M tJ1 I X M E- a-) � A Inspection and Maintenance Guide Water Page 58 of 64 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -50 of 55 Record Date:2/19/2025 2:56 PM King County, WA Oldcastle Infrastructure" INSPECTION AND MAINTENANCE GUIDE A CRH COMPANY BioPod" Biofilter with StorMMix' Biofiltration Media Description The BioPod" Biofllter System (BioPod) is a stormwater biofiltration treatment system used to remove pollutants from stormwater runoff. Impervious surfaces and other urban and suburban landscapes generate a variety of contaminants that can enter stormwater and pollute downstream receiving waters unless treatment is provided. The BioPod system uses proprietary StormMix" biofiltration media to capture and retain pollutants including total suspended solids (TSS),metals, nutrients, gross solids, trash and debris as well as petroleum hydrocarbons. Function The BioPod system uses engineered, high-flow rate filter media to remove stormwater pollutants, allowing for a smaller footprint than conventional bioretention systems. Contained within a compact precast concrete vault, the BioPod system consists of a biofiltration chamber and an optional integrated high-flow bypass with a contoured inlet rack to minimize scour. The biofiltration chamber is filled with horizontal layers of aggregate (which may or may not include an underdrain), biofiltration media and mulch. Stormwater passes vertically down through the mulch and biofiltration media for treatment. The mulch provides pretreatment by retaining most of the solids or sediment. The biofiltration media providesfurther treatment by retaining finersediment and dissolved pollutants. The aggregate allows the media bed to drain evenly for discharge through an underdrain pipe or by infiltration. Configuration The BioPod system can be configured with either an internal or external bypass. The internal bypass allows both water quality and bypass flows to enter thetreatment vault. The water quality flows are directed to the biofiltration chamber whilethe excess flows are diverted overthe bypass weir without entering the biofiltration chamber. Both the treatment and bypass flows are combined in the outlet area prior to discharge from the structure BioPod unitswithout an internal bypass are designed such that only treatment flows enterthe treatment structure. When the system has exceeded its treatment capacity, ponding will force bypass Flows to continue down the gutter to the nearest standard catch basin or other external bypass structure. The BioPod system can be configured as a tree box filter with tree and grated inlet, as a planter box filter with shrubs, grasses and an open top, or as an underground filter with access risers, doors and a subsurface inlet pipe. The optional internal bypass may be incorporated with any of these configurations. In addition, an open bottom configuration may be used to promote infiltration and groundwater recharge. The configuration and size of the BioPod system is designed to meet the requirements of a specific project. Inspection & Maintenance Overview State and local regulations require all stormwater management systems to be inspected on a regular basis and maintained as necessary to ensure performance and protect downstream receiving waters. Without maintenance, excessive pollutant buildup can limit system performance by reducing the operating capacity of the system and increasing the potential for scouring of pollutants during periods of high flow. Some configurations of the BioPod may require penodicirrigationto establish and maintain vegetation. Vegetation will typically become established about two years after planting. Irrigation requirements are ultimately dependent on climate, rainfall and the type of vegetation selected. Page 59 of 64 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -51 of 55 Record Date:2/19/2025 2:56 PM King County, WA Maintenance Frequency Periodic inspection is essential for consistent system performance and is easily completed. Inspection is typically conducted a minimum of twice per year, but since pollutant transport and deposition varies from site to site, a site-specific maintenance frequency should be established during the first two or three years of operation. Inspection Equipment The following equipment is helpful when conducting BioPod inspections: Recording device (pen and paper form, voice recorder. iPad, etc.) Suitable clothing (appropriate footwear, gloves, hardhat, safety glasses, etc ) Traffic control equipment (cones, barricades, signage, flagging, etc.) Manhole hook or pry bar Flashlight Tape measure Inspection Procedures BioPod inspections are visual and are conducted without entering the unit_ To complete an inspection, safety measures including traffic control should be deployed before the access covers or tree grates are removed. Once the covers have been removed, the following items should be checked and recorded (see form provided on page 6) to determine whether maintenance is required: If the BioPod unit is equipped with an internal bypass, inspect the contoured inlet rack and outlet chamber and note whether there are any broken or missing parts. In the unlikely event that internal parts are broken or missing, contact Oldcastle Stormwater at (800) 579-8819 to determine appropriate corrective action Note whether the curb inlet, inlet pipe, or — if the unit is equipped with an internal bypass — the inlet rack is blocked or obstructed. If the unit is equipped with an internal bypass, observe, quantify and record the accumulation of trash and debris in the inlet rack. The significance of accumulated trash and debris is a matter of judgment. Often, much of the trash and debris may be removed manually at the time of inspection if a separate maintenance visit is not yet warranted. If it has not rained within the past 24 hours, note whether standing water is observed in the biofiltration chamber. Finally, observe, quantify and record presence of invasive vegetation and the amount of trash and debris and sediment load in the biofiltration chamber. Erosion of the mulch and biofiltration media bed should also be recorded. Sediment load may be rated light, medium or heavy depending on the conditions. Loading characteristics may be determined as follows: o Light sediment load — sediment is difficult to distinguish among the mulch fibers at the top of the mulch layer; the mulch appears almost new, o Medium sediment load — sediment accumulation is apparent and may be concentrated in some areas; probing the mulch layer reveals lighter sediment loads under the top 1 " of mulch. o Heavy sediment load — sediment is readily apparent across the entire top of the mulch layer; individual mulch fibers are difficult to distinguish; probing the mulch layer reveals heavy sediment load under the top I" of mulch. Often, much of the invasive vegetation and trash and debris may be removed manually at the time of inspection if a separate maintenance visit is not yet warranted. Page 60 of 64 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -52 of 55 Record Date:2/19/2025 2:56 PM King County, WA Maintenance Indicators Maintenance should be scheduled if any of the following conditions are identified during inspection: The concrete structure is damaged or the tree grate or access cover is damaged or missing. The curb inlet or inlet rack is obstructed. Standing water is observed in the biofiltration chamber more than 24 hours after a rainfall event (use discretion if the BioPod is located downstream of a storage system that attenuates flow). Trash and debris in the inlet rack cannot be easily removed at the time of inspection. Trash and debris, invasive vegetation or sediment load in the biofiltration chamber is heavy or excessive erosion has occurred. Maintenance Equipment The following equipment is helpful when conducting BioPod maintenance: Suitable clothing (appropriate footwear, gloves, hardhat, safety glasses, etc.) Traffic control equipment (cones, barricades, signage, flagging, etc.) Manhole hook or pry bar Flashlight Tape measure Rake, hoe, shovel and broom Bucket Pruners Vacuum truck (optional) Maintenance Procedures Maintenance should be conducted during dry weather when no flows are entering the system. All maintenance may be conducted without entering the BioPod structure. Once safety measures such as traffic control are deployed, the access covers may be removed and the following activities may be conducted to complete maintenance: Remove all trash and debris from the curb inlet and inlet rack manually or by using a vacuum truck as required. Remove all trash and debris and invasive vegetation from the biofiltration chamber manually or by using a vacuum truck as required. If the sediment load is medium or light but erosion of the biofiltration media bed is evident, redistribute the mulch with a rake or replace missing mulch as appropriate. If erosion persists, rocks may be placed in the eroded area to help dissipate energy and prevent recurring erosion. If the sediment load is heavy, remove the mulch layer using a hoe, rake, shovel and bucket, or by using a vacuum truck as required. If the sediment load is particularly heavy, inspect the surface of the biofiltration media once the mulch has been removed. If the media appears clogged with sediment, remove and replace one or two inches of biofiltration media prior to replacing the mulch layer. Prune vegetation as appropriate and replace damaged or dead plants as required. Replace the tree grate and/or access covers and sweep the area around the BioPod to leave the site clean. All material removed from the BioPod during maintenance must be disposed of in accordance with local environmental regulations. In most cases, the material may be handled in the same manner as disposal of material removed from sumped catch basins or manholes. Page 61 of 64 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -53 of 55 Record Date:2/19/2025 2:56 PM King County, WA Natural, shredded hardwood mulch should be used in the BioPod. Timely replacement of the mulch layer according to the maintenance indicators described above should protect the biofiltration media below the mulch layer from clogging due to sediment accumulation. However, whenever the mulch is replaced, the BioPod should be visited 24 hours after the next major storm event to ensure that there is no standing water in the biofiltration chamber. Standing water indicates that the biofiltration media below the mulch layer is clogged and must be replaced. Please contact Oldcastle Infrastructure at (800) 579-8819 to purchase the proprietary Storm Mix'" biofiltration media. Page 62 of 64 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -54 of 55 Record Date:2/19/2025 2:56 PM King County, WA BioPod Model Locati Invasive Vegetation in Biohitration Chamber Notes: C Yes D No Sediment in Biofiltration Chamber Notes: ❑ Light ❑ Medium [ Heavy Erosion in Biofiltration Chamber Notes; ❑ Yes _, No Maintenance Requirements ❑ Yes - Schedule Maintenance ❑ No - Schedule Re -Inspection Page 63 of 64 Instrument Number: 20250219000803 Document:COV Rec: $357.50 Page -55 of 55 Record Date:2/19/2025 2:56 PM King County, WA OUR MARKETS a4fttlelnfristrUClUfe I www.,Aucasileinfrastructure.com °��" r-�� A CRH COMPANY 800.579-8819 Page 64 of 64 w f T BUILDING COMMUNICATIONS EuERGY TRANSPORTATION STRUCTURES WATER a4fttlelnfristrUClUfe I www.,Aucasileinfrastructure.com °��" r-�� A CRH COMPANY 800.579-8819 Page 64 of 64