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Home My WebLink About20200226000964 STORMWATER EASEMENT AND MAINTENANCE AGREEMENT N`N 1tb'-/- 5Llefl tiII1t 111.1 lI11Ii LIII 11111 IiL Illil Illil 1111111 1111 III III . 20200226000964 Return Address: EASEMENT Rec:$234.00 City of Auburn 212812020 2:51 PM KING COUNTY,WA City Clerk 25 West Main Auburn,WA 98001 FIRST AMERICAN """CC, 1 Above this line reserved for recording information. STORM WATER EASEMENT AND MAINTENANCE AGREEMENT Reference#(if applicable): Grantor/Borrower: Auburn School District#408 Grantee/Assignee/Beneficiary: City of Auburn Legal Description/STR: 18-21-05 Assessor's Tax Parcel ID#: 182105-9082 THIS EASEMENT AND AGREEMENT made and entered into this IDS" day of •Vdiartl ary , 2020, by and between the City of Auburn, a municipal corporation of King County, Washington, hereinafter referred to as "CITY" and Auburn School District #408 hereinafter referred to as "PROPERTY OWNER". WHEREAS, PROPERTY OWNER has applied for certain permits with the CITY or the construction of improvements for Auburn High School located at 711 E Main St, Auburn, WA 98002, which create impervious surface; and WHEREAS, the PROPERTY OWNER and the CITY desire that the elements of a storm management plan be implemented and maintained to provide adequate performance for controlling both the quantity and quality of storm drainage; and WHEREAS, for maintenance of storm system elements, it is necessary to have appropriate right-of-way to bring in equipment to conduct maintenance functions; and WHEREAS, maintenance requirement is a covenant running with the land and binding upon all heirs, successors and assigns of both parties; and WHEREAS, the parties desire that this Agreement be recorded to advise heirs, successors and assigns of both parties as to the existence of this easement and agreement; and WHEREAS, an easement is needed to bring in maintenance equipment; and FAC12-0007 Storm Water Easement and Maintenance Agreement Page 1 of 28 RECORDING REQUESTED BY FIRST AMERICAN TITLE COMPANY A8 AN ACOOIY^ ATIO44 ONLY WHEREAS, the parties are both desirous of permitting inspection of the storm management plan elements to make certain that they are functioning properly and for purposes of determining the appropriate repairs. NOW, THEREFORE, BASED UPON MUTUAL COVENANTS TO BE DERIVED THE PARTIES AGREE AS FOLLOWS: Section 1,EASEMENT PROPERTY OWNER hereby provides a non-exclusive easement to the City for access, inspection, and maintenance for the purposes of this Agreement and the attached Storm Water Pollution Prevention Plan, over, under and on that real estate described in Exhibit "A" and depicted in Exhibit "B" and on that portion of the property as showing on the approved Record Drawings revised pursuant to construction records for the City of Auburn under Permit No. FAC12-0007, which record drawings are hereby incorporated by reference as if set out in full. This easement shall be a burden to that real estate which is legally described and depicted attached as Exhibit "A" & "B" and incorporated herein by this reference, and shall be a benefit to the City Storm Drainage Utility System. Section 2,HEIRS, SUCCESSORS AND ASSIGNS This Agreement shall be binding upon the heirs, successors and assigns of the parties. Section 3,MAINTENANCE The PROPERTY OWNER agrees to maintain the storm system in accordance with the ordinances and all applicable codes of the CITY and the Maintenance and Operation Manual included as "Exhibit C" and incorporated herein by this reference as if set out in full. The PROPERTY OWNER does hereby agree that the CITY may enter onto the property of the PROPERTY OWNER via the easement described above to inspect and perform necessary maintenance if, after the PROPERTY OWNER is given notice to maintain, the PROPERTY OWNER fails to maintain. Further, the PROPERTY OWNER agrees the CITY may enter onto the property of PROPERTY OWNER via the easement described above to perform emergency maintenance in the event of failure of the storm management plan elements which might result in adverse impacts(s) on public facilities or private facilities of other property owners. In both events the PROPERTY OWNER agrees to reimburse the CITY for the costs incurred by the CITY in maintaining the storm system. Should the CITY incur attorney's fees and/or costs in enforcing the agreement and/or in maintaining or collecting maintenance fees, the PROPERTY OWNER agrees to pay reasonable attorney's fees and all costs incurred by the CITY. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 2 of 28 The Storm System Includes the following BMP's: • Infiltration Facility • Control Structure • Catch Basins • Stormfilters • Baffle Oil/Nature Separators (API Type) • Catch Basin Inserts • Bioretention Rain Gardens • Compost Amended Soil • Pervious Pavement Section 4,ACKNOWLEDGMENT OF OTHER ENFORCEMENT ACTIONS PROPERTY OWNER acknowledges that there may be liability for violations of codes that could result in additional fines and/or the possibility of incarceration in addition to the fees for maintenance should violations occur. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 3 of 28 SIGNATORY—MUNICIPAL CORPORATE IN WITNESS WHEREOF the Grantor has executed these presents this OA- day of K�':Jn i lVA. , 2020. AUBURN SCHOOL DISTRICT NO. 408, a municipal corporation of the State of Washington 2 ( Io �l2- Alan Spicciati Date Superintendent STATE OF WASHINGTON ) ) ss COUNTY OF KING ) Nall .I certify that I know or have satisfactory evidence that RIGLI all is the person who appeared before me, and said person acknowledged that they signed this instrument, on oath stated that they were authorized to execute the instrument and acknowledged it as the Superintendent of the AUBURN SCHOOL DISTRICT NO. 408, a municipal corporation, to be the free and voluntary act of such party for the uses and purposes mentioned in this instrument. Dated a. \0 - a0a-c• ,.\\‘‘‘‘‘‘ili„ •{ HAR ►�� ,,,,,,,,,,,,,,44. ��; `y r. '�� ►R '�► /� Notary Public in and for the State of Washington S :v 20257 = Residing at 54)t1A/18 y LA. , W (1) • .e1/s�\o 0 s My appointment expires R•2�l• 22- O111%iltt W AS�`a��= FAC12-0007 Storm Water Easement and Maintenance Agreement Page 4 of 28 EXHIBIT A (LEGAL DESCRIPTION) BEGINNING AT A POINT WHICH IS 691.97 FEET EAST AND 50 FEET NORTH OF THE S.W. CORNER OF THE S.E.OF THE N.W.OF SECTION 18.TOWNSHIP 21 NORTH.RANGE 5 EAST.W M IN KING COUNTY. WASHINGTON; THENCE NORTH 02°28'49" WEST ALONG THE EAST BOUNDARY UNE OF THE WASHINGTON SCHOOL TRACT A DISTANCE OF 575.81 FEET TO THE CENTERLINE OF VACATED SECOND STREET N.E.,; THENCE SOUTH 87°30 39" WEST A DISTANCE OF 333.91 FEET TO THE EASTERLY MARGIN OF "E STREET N.E.; THENCE NORTH 00°51'20" EAST ALONG SAID EASTERLY MARGIN AND ALONG THE WEST LINE OF LANGE'S FIRST ADDITION TO AUBURN.ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 25 OF PLATS.AT PAGE 36.RECORDS OF KING COUNTY, WASHINGTON.A DISTANCE OF 280.58 FEET TO AN ANGLE POINT IN SAID MARGIN; THENCE CONTINUNG ALONG SAC MARGIN NORTH 00°50'02" EAST A DISTANCE OF 254.07 FEET TO THE SOUTHERLY MARGIN OF 4TH STREET NE AND TO THE N.W CORNER OF BLOCK 3 OF SAID PLAT. THENCE NORTH 87°31 25" EAST ALONG SAID SOUTHERLY MARGIN A DISTANCE OF 187.17 FEET TO AN ANGLE POINT IN SAID MARGIN, THENCE CONTINUING ALONG SAID MARGIN NORTH 86°47'04"EAST A DISTANCE OF 637.46 FEET TO AN ANGLE POINT IN SAID MARGIN THENCE CONTINUING ALONC SAID MARGIN NORTH 87°32'53" EAST A DISTANCE OF 307.22 FEET TO THE EAST LINE OF THE WEST HALF OF LOT 9.BLOCK 5.POPIARWOOD ADDITION TO AUBURN.ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 32 OF PLATS. PAGE 5. RECORDS OF KING COUNTY.WASHINGTON; THENCE SOUTH 00°42'30" WEST ALONG THE EAST LINE OF THE WEST HALF OF LOTS 9 THRU 16.BLOCK 3,AND ALONG THE EAST LINE OF THE WEST HALF OF LOTS 13 THRU 21.BLOCK 2 OF SAID PLAT A DISTANCE OF 998.25 FEET TO THE SOUTH UNE OF LOT 21; THENCE SOUTH 87°31'19"WEST ALONG SAID SOUTHERLY LINE AND ITS WESTERLY EXTENSION A DISTANCE OF 72.58 FEET TO AN ANGLE POINT; THENCE SOUTH 87°31'40"WEST A DISTANCE OF 16.26 FEET TO THE S.E.CORNER OF LOT 4. BLOCK 1.OF SAID PLAT; THENCE SOUTH 00°42'27"WEST ALONG THE WESTERLY MARGIN OF"I"STREET NE AND ALONG THE EAST LINE OF LOT 3,BLOCK 1,OF SAID PLAT,TO THE S.E.CORNER THEREOF AND TO THE NORTHERLY MARGIN OF MAIN STREET EAST A DISTANCE OF 120.96 FEET; THENCE SOUTH 87°31'34" WEST ALONG THE SOUTH LINE OF SAID BLOCK I AND ALONG SAID NORTHERLY MARGIN A DISTANCE OF 221.88 FEU TO AN ANGLE POINT IN SAID MARGIN; THENCE CONTINUING ALONG SAID MARGIN SOUTH 87°30'40"WEST A DISTANCE OF 455.93 FEET TO THE POINT OF BEGINNING. TOGETHER WITH THOSE PORTIONS OF GOVERNMENT LOTS 7 AND 8,SECTION 18,TOWNSHIP 21 NORTH.RANGE 5 EAST.W M.DESCRIBED AS FOLLOWS: FAC12-0007 Storm Water Easement and Maintenance Agreement Page 5 of 28 EXHIBIT A (LEGAL DESCRIPTION CONTINUED) BEGINNING AT THE S.W.CORNER OF LOT 3,BLOCK 2,SAID LANGE'S FIRST ADDITION TO AUBURN,SAID POINT BEING ON THE NORTHERLY MARGIN OF 4TH STREET N.E.. THENCE NORTH 02°17'21"WEST ALONG THE WEST LINE OF SAID LOT A DISTANCE OF 105.00 FEET TO THE N.W.CORNER THEREOF; THENCE NORTH 87°31'24" EAST ALONG THE NORTH LINE OF LOTS 3 AND 4 A DISTANCE OF 91.51 FEET TO THE N.E.CORNER OF SAID LOT 4. THENCE NORTH 02°31'15" WEST A DISTANCE OF 15.14 FEET,MORE OR LESS,TO THE SOUTH LINE OF SAID GOVERNMENT LOT 8. THENCE NORTH 87°30'06"EAST ALONG SAID LINE A DISTANCE OF 62.22 FEET. THENCE NORTH 00°49'06"EAST A DISTANCE OF 661.92 FEET,MORE OR LESS.TO THE NORTH LINE OF THE SOUTH HALF OF SAID GOVERNMENT LOT 8; THENCE NORTH 87°33'06"EAST ALONG SAID NORTH LINE A DISTANCE OF 400.65 FEET; THENCE SOUTH 00°49'06" WEST A DISTANCE OF 661.92 FEET TO THE SOUTH LINE OF SAID GOVERNMENT LOT 8; THENCE NORTH 87°30'06"EAST ALONG SAID SOUTH LINE A DISTANCE OF 157.93 FEET,MORE OR LESS,TO THE WESTERLY MARGIN OF'H" STREET N.E.; THENCE SOUTH 00°52'47"WEST ALONG SAID MARGIN A DISTANCE OF 112.64 FEET,MORE OR LESS,TO THE NORTHERLY MARGIN OF 4TH STREET N.E.; THENCE SOUTH 86°47'04" WEST ALONG SAID MARGIN A DISTANCE OF 614.35 FEET TO AN ANGLE POINT IN SAID MARGIN,SAID POINT ALSO BEING ALONG THE SOUTH LINE OF BLOCK 2 OF SAID LANGE'S FIRST ADDITION TO AUBURN; THENCE CONTINUING ALONG SAID MARGIN AND SAID SOUTH LINE SOUTH 87°31'25" WEST A DISTANCE OF 91.77 FEET TO THE BEGINNING. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 6 of 28 . . Exhibit B OPERATIONS AND MAINTENANCE EXHIBIT en\ 4 NTS - - / - - - - - - - 4TH STREET NE i 1 °S Si PROPERTY CATCH BASIN(TYP) • BOUNDARY • 4 • (TYP) * ' 1 STORM "41------STORM LINE(TYP) o = _ = LINE(TYP) ,:'-':"-'":" 3 .. YAC' .,.' F:4:.s .fie S a POROUS CONCRETE PAVING(TYP)' l'' '''.;,--';',-:,'' _A . -, 4 • PROPOSED CATCH BASIN(TYP) IIIr ' w Z I t " � STORMTEC H I, ` CHAMBERSW ill (TYP) L ,,w i , [pi: mil 1 ii r IiRt`9'.�`u 3t'ai>. I III �na> st Ado' t <illa 08 Itirn lag 17 1:43 �p s 1 e,71.'. 'dk 4Re Aw6 t A FN COUGHLINPORTERLUNDEEN 800 4TH STREET NE STRUCTURAL CIVIL SEISMIC ENGINEERING AUBURN, WA 98002 801 SECOND AVENUE,SUITE 900 (206)343-0460 PAGE I OF 4 SEATTLE,WA 98104 www.cplinc.com FAC12-0007 Storm Water Easement and Maintenance Agreement Page 7 of 28 Exhibit B OPERATIONS AND MAINTENANCE EXHIBIT 41110., NTS 4TH STREET NE SD— - 4101-1,4 - - SD — EX STORM LINE(TYP) STORM LINE(TYP) . PROPERTY BOUNDARY(TYP) POROUS CONCRETE PAVING(TYP) At}k4�dskai:,S'W. STORM LINE(TYP) STORMTECH CHAMBERS(TYP) CATCH BASIN(TYP) EX STORM LINE(TYP) I 0 i COUGHLINPORTERLUNDEEN 800 4TH STREET NE STRUCTURAL CIVIL SEISMIC ENGINEERING AUBURN, WA 98002 801 SECOND AVENUE,SUITE 900 (206)343-0460 PAGE 2 OF 4 SEATTLE,WA 98104 www.cplinc.com FAC12-0007 Storm Water Easement and Maintenance Agreement Page 8 of 28 Exhibit B OPERATIONS AND MAINTENANCE EXHIBIT .7Ls ! . 9.D . ,... SD. STORM LINE (TYP) 7 I 4 II I IN rs , CATCH BASIN _ (TYP) I w 1 ZI IUJ I IS ID o , r..1 _ 1 ....I!! STORMTECH I CHAMBERS .... .-"L I o (TYP) 1 ij r "--,.....\..., ' ,,,,,,,,,, ix- 1 \V 1 ;____ I I PROPERTY I 0,5, I, o I BOUNDARY If) O, I - - g _ E MAIN STREET ,- OS III SD SD - '. 1 COUGH LINPORTERLUNDEEN 800 4TH STREET NE STRUCTURAL CIVIL SEISMIC ENGINEERING AUBURN, WA 98002 801 SECOND AVENUE,SUITE 900 WA 98104 (206)343-0460 PAGE 3 OF 4 SEATTLE, www.cplinc.com FAC12-0007 Storm Water Easement and Maintenance Agreement Page 9 of 28 Exhibit B OPERATIONS AND MAINTENANCE EXHIBIT STORMTECH CHAMBERS (TYP) NTS STORM LINE , / YW J (TYP) PROPERTY BOUNDARY (TYP) CATCH BASIN 0 (TYP) s STORM LINE / (TYP) )11 oN E MAIN STREET as as as _ , as I F I COUGHLINPORTERLUNDEEN 800 4TH STREET NE STRUCTURAL CIVIL SEISMIC ENGINEERING AUBURN, WA 98002 801 SECOND AVENUE,SUITE 900 (206)343-0460 PAGE 4 OF 4 SEATTLE,WA 98104 www.cplinc.com FAC12-0007 Storm Water Easement and Maintenance Agreement Page 10 of 28 EXHIBIT 'C' STORM WATER POLLUTION PREVENTION MAINTENANCE and OPERATION SCHEDULE for Auburn High School SEPA NO. N/A FAC NO. 408 Site Address: The project is located in Section 18-Township 21 - Range 5 East, W.M., 800 4th Street Northeast, Auburn, WA 98002.The tax parcel number is 1821059082. Introduction: This storm drainage technical information report has been prepared to address the City of Auburn's site development and storm drainage requirements for the proposed Auburn High School located at 800 4th Street Northeast, Auburn, WA 98002. The site has an area of approximately 23.41 and is currently consists of a combination of one and two-story high school buildings, play fields, and associated storm sewer, sanitary sewer, gas, power, and communications/franchise utilities. Site drainage patterns consist of manmade drainage systems which tie in to two separate City storm mains which tie together onsite. The site is proposing onsite detention facilities to match pre-developed (forested) site conditions. Stormwater will be routed to these facilities via man- made conveyance systems and subsequently discharge to the City storm mains onsite. Water quality for the majority of pollution generating impervious surfaces will be treated by onsite infiltration, with a small area being treated by rain gardens. Flow control and water quality facilities will be designed and constructed in accordance with the 2009 City of Auburn Surface Water Management Manual (SWMM). The fully developed site will be roughly 80% impervious area. According to the City of Auburn's Construction Standards for storm water management, the city requires storm water quantity and quality control to all proposed developments. We have proposed to collect all of the storm water runoff from the landscaped, building and pavement areas in a series of catch basins. This water will be conveyed by storm drainage pipe to an area of porous pavement, a field base course gallery, stormtech chambers, or a rain FAC12-0007 Storm Water Easement and Maintenance Agreement Page 11 of 28 garden. Here the storm water will be released into existing 36" and 30" storm mains and is routed through the site and combined into a 42" main onsite. The 42" main leaves the site heading east on 4th St NE and continues until reaching a point greater than 1/4 mile downstream of the project site. Plan Goal: The specific purpose for the storm water facility is to minimize pollution that is typically associated with modern development. In general, pollution from motor vehicles and pollution generated from erosion. Attached to this narrative is a maintenance manual, which offers guidelines to the owner for storm water facility maintenance. Prevention BMP'S: The catch basins shall have stenciled on them "DUMP NO WASTE—DRAINS TO STREAM." The owner shall be responsible for sweeping the lot, installing storm drainage stenciling and provide spill control procedures. In case of spill call DOE at 1-425-649-7000. The catch basins, detention/wetpond, and control structures will be visually inspected for accumulation of debris and silt and will be maintained as required by this pollution prevention plan and attachments. • Maintenance Standards for Drainage Facilities (from the City of Auburn Surface Water Management Manual, November 2009) No. 2 - Infiltration No. 4 — Control Structure/Flow Restrictor No. 5 — Catch Basins No. 15 — Stormfilters No. 16 — Baffle Oil/Nature Separators (API Type) No. 18 — Catch Basin Inserts No. 20 — Bioretention Rain Gardens No. 22 — Compost Amended Soil No. 24 — Pervious Pavement Treatment BMP'S: Basic treatment through porous paving, field base course galleries, and stormtech galleries have been proposed to treat runoff for conventional pollutants. The pavement was designed to treat 91% of the 2-year storm event (water quality storm) for water quality treatment. In addition, the treatment was designed to match forested condition flows leaving the site. Inspection/Maintenance: FAC12-0007 Storm Water Easement and Maintenance Agreement Page 12 of 28 Regular inspections of the drainage facilities should be carried out twice per year, in the spring and fall. The responsible party should keep records of these inspections available for review by the City. Additional inspections may be required after severe storms. Routine maintenance of the site will include mowing, care of landscaping and the removal of trash and debris from the drainage system. The parking lots and driveways should be kept clean and in repair. Events such as major storms or heavy winds will require immediate inspections for damages. To ensure proper water quality and treatment, the basic treatment systems must be properly maintained. Be careful to avoid introducing landscape fertilizer to receiving waters or groundwater. If wetpond side slopes become eroded over 2" deep, stabilize by using appropriate erosion control measures (e.g., rock reinforcement, planting of grass, compaction). Catch basins shall be cleaned when sump is 1/3' full of sediment or debris. Person of Responsibility: Auburn School District 915 4th Street NE Auburn, WA 98002 253/931-4900 Design Engineer: Kyle Malaspino Coughlin Porter Lundeen 413 Pine Street Suite 300 Seattle, WA 98101 206/343-0460 Plan and/or Information Updates: The City of Auburn Storm Drainage Utility section is to review and approve any changes to this Storm Water Pollution Prevention Plan prior to changes in its implementation. Additionally, any changes in ownership or person of responsibility are to be reported to the City Storm Drainage Utility section. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 13 of 28 INSPECTION/MAINTENANCE CHECKLIST STRUCTURE DATE OF INSPECTION/MAINTENANCE Results/ Maintenance Date Inspection All Catch Basins Results Maintenance Done Bioretention Rain Inspection Gardens Results Maintenance Done Inspection Conveyance Pipes Results Maintenance Done Flow Control Inspection Structure Results Maintenance Done Pervious Pavement Inspection Results Maintenance Done Stormfilters Inspection Results Maintenance Done FAC12-0007 Storm Water Easement and Maintenance Agreement Page 14 of 28 Maintenance Standards for Drainage Facilities: The facility-specific maintenance standards contained in this section are intended to be conditions for determining if maintenance actions are required as identified through inspection. They are not intended to be measures of the facility's required condition at all times between inspections. In other words, exceeding these conditions at any time between inspections and/or maintenance does not automatically constitute a violation of these standards. However, based upon inspection observations, the inspection and maintenance schedules shall be adjusted to minimize the length of time that a facility is in a condition that requires a maintenance action. No.2—Infiltration Maintenance Defect Conditions When Maintenance Is Results Expected Component Needed When Maintenance Is Performed General Trash& Debris See"Detention Ponds"(No. 1). See"Detention Ponds" (No. 1). Poisonous/Noxious See"Detention Ponds"(No. 1). See"Detention Ponds" Vegetation (No. 1). Contaminants and See"Detention Ponds"(No. 1). See"Detention Ponds" Pollution (No. 1). Rodent Holes See"Detention Ponds"(No. 1). See"Detention Ponds" (No. 1). Storage Area Sediment Water ponding in infiltration pond after Sediment is removed rainfall ceases and appropriate time and/or facility is cleaned allowed for infiltration. so that infiltration system works according to (A percolation test pit or test of facility design. indicates facility is only working at 90%of its designed capabilities. If two inches or more sediment is present, remove). Filter Bags(if Filled with Sediment Sediment and debris fill bag more than 1/2 Filter bag is replaced or applicable) and Debris full. system is redesigned. Rock Filters Sediment and By visual inspection, little or no water flows Gravel in rock filter is Debris through filter during heavy rainstorms. replaced. Side Slopes of Erosion See"Detention Ponds"(No. 1). See"Detention Ponds" Pond (No. 1). Emergency Tree Growth See"Detention Ponds"(No. 1). See"Detention Ponds" Overflow Spillway (No. 1). and Berms over 4 feet in height. Piping See"Detention Ponds"(No. 1). See"Detention Ponds" (No. 1). FAC12-0007 Storm Water Easement and Maintenance Agreement Page 15 of 28 No. 2—Infiltration Maintenance Defect Conditions When Maintenance Is Results Expected Component Needed When Maintenance Is Performed Emergency Rock Missing See"Detention Ponds"(No. 1). See"Detention Ponds" Overflow Spillway (No. 1). Erosion See "Detention Ponds"(No. 1). See "Detention Ponds" (No. 1). Pre-settling Facility or sump 6"or designed sediment trap depth of Sediment is removed. Ponds and Vaults filled with Sediment sediment. and/or debris No.4—Control Structure/Flow Restrictor Maintenance Defect Condition When Maintenance is Needed Results Expected Component When Maintenance is Performed General Trash and Debris Material exceeds 25%of sump depth or 1 Control structure (Includes Sediment) foot below orifice plate. orifice is not blocked. All trash and debris removed. Structural Damage Structure is not securely attached to Structure securely manhole wall. attached to wall and outlet pipe. Structure is not in upright position (allow up Structure in correct to 10%from plumb). position. Connections to outlet pipe are not watertight Connections to outlet and show signs of rust. pipe are watertight; structure repaired or replaced and works as designed. Any holes, other than designed holes, in the Structure has no structure. holes other than designed holes. Cleanout Gate Damaged or Missing Cleanout gate is not watertight or is missing. Gate is watertight and works as designed. One maintenance person cannot move up Gate moves up and and down gate. down easily and is watertight. Chain/rod leading to gate is missing or Chain is in place and damaged. works as designed. Gate is rusted over 50%of its surface area. Gate is repaired or replaced to meet design standards. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 16 of 28 No.4—Control Structure/Flow Restrictor Maintenance Defect Condition When Maintenance is Needed Results Expected Component When Maintenance is Performed Orifice Plate Damaged or Missing Control device is not working properly due Plate is in place and to missing, out of place, or bent orifice plate. works as designed. Obstructions Any trash, debris, sediment, or vegetation Plate is free of all blocking the plate. obstructions and works as designed. Overflow Pipe Obstructions Any trash or debris blocking (or having the Pipe is free of all potential of blocking)the overflow pipe. obstructions and works as designed. Manhole See"Closed See "Closed Detention Systems" (No. 3). See"Closed Detention Systems" Detention Systems" (No. 3). (No. 3). Catch Basin See"Catch Basins" See"Catch Basins" (No. 5). See "Catch Basins" (No. 5). (No. 5). FAC12-0007 Storm Water Easement and Maintenance Agreement Page 17 of 28 No. 5—Catch Basins Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed General Trash& Trash or debris which is located immediately No Trash or debris Debris in front of the catch basin opening or is located immediately in blocking inletting capacity of the basin by front of catch basin or on more than 10%. grate opening. Trash or debris(in the basin)that exceeds 60 No trash or debris in the percent of the sump depth as measured from catch basin. the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of six inches clearance from the debris surface to the invert of the lowest pipe. Trash or debris in any inlet or outlet pipe Inlet and outlet pipes free blocking more than 1/3 of its height. of trash or debris. Dead animals or vegetation that could No dead animals or generate odors that could cause complaints vegetation present within or dangerous gases(e.g., methane). the catch basin. Sediment Sediment(in the basin)that exceeds 60 No sediment in the catch percent of the sump depth as measured from basin. the bottom of basin to invert of the lowest pipe into or out of the basin, but in no case less than a minimum of 6 inches clearance from the sediment surface to the invert of the lowest pipe. Structure Top slab has holes larger than 2 square Top slab is free of holes Damage to inches or cracks wider than 1/4 inch. and cracks. Frame and/or Top Slab (Intent is to make sure no material is running into basin). Frame not sitting flush on top slab, i.e., Frame is sitting flush on separations of more than 3/4 inch of the the riser rings or top slab frame from the top slab. Frame not securely and firmly attached. attached Fractures or Maintenance person judges that structure is Basin replaced or Cracks in unsound. repaired to design Basin Walls/ standards. Bottom Grout fillet has separated or cracked wider Pipe is regrouted and than 1/2 inch and longer than 1 foot at the secure at basin wall. joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. Settlement/ If failure of basin has created a safety, Basin replaced or Misalignment function, or design problem. repaired to design standards. Vegetation Vegetation growing across and blocking No vegetation blocking more than 10%of the basin opening. opening to basin. Vegetation growing in inlet/outlet pipe joints No vegetation or root that is more than six inches tall and less than growth present. six inches apart. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 18 of 28 No. 5—Catch Basins Maintenance Defect Conditions When Maintenance is Needed Results Expected When Component Maintenance is performed Contamination See"Detention Ponds"(No. 1). No pollution present. and Pollution Catch Basin Cover Not in Cover is missing or only partially in place. Catch basin cover is Cover Place Any open catch basin requires maintenance. closed. Locking Mechanism cannot be opened by one Mechanism opens with Mechanism maintenance person with proper tools. Bolts proper tools. Not Working into frame have less than 1/2 inch of thread. Cover Difficult One maintenance person cannot remove lid One maintenance person to Remove after applying normal lifting pressure. can remove cover. (Intent is keep cover from sealing off access to maintenance.) Ladder Ladder Rungs Ladder is unsafe due to missing rungs, not Ladder meets design Unsafe securely attached to basin wall, standards and allows misalignment, rust, cracks, or sharp edges. maintenance person safe access. Metal Grates Grate opening Grate with opening wider than 7/8 inch. Grate opening meets (If Applicable) Unsafe design standards. Trash and Trash and debris that is blocking more than Grate free of trash and Debris 20% of grate surface inletting capacity. debris. Damaged or Grate missing or broken member(s) of the Grate is in place and Missing. grate. meets design standards. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 19 of 28 No. 15-STORMFILTERTM Maintenance Defect Condition When Maintenance is Results Expected When Component Needed Maintenance is Performed Below Ground Sediment Sediment depth exceeds V4 inch. No sediment deposits that Vault Accumulation on would impede permeability of Media. the compost media. Sediment Sediment depth exceeds 6-inches in first No sediment deposits in vault Accumulation in chamber. bottom of first chamber. Vault Trash/Debris Trash and debris accumulated on Trash and debris removed from Accumulation compost filter bed. the compost filter bed. Sediment in When drain pipes, clean-outs, become Sediment and debris removed. Drain full with sediment and/or debris. Pipes/Clean- Outs Damaged Pipes Any part of the pipes that are crushed or Pipe repaired and/or replaced. damaged due to corrosion and/or settlement. Access Cover Cover cannot be opened; one person Cover repaired to proper Damaged/Not cannot open the cover using normal working specifications or Working lifting pressure, corrosion/deformation of replaced. cover. Vault Structure Cracks wider than 1/2-inch or evidence Vault replaced or repairs made Includes Cracks of soil particles entering the structure so that vault meets design in Wall, Bottom, through the cracks, or specifications and is structurally Damage to maintenance/inspection personnel sound. Frame and/or determine that the vault is not Top Slab structurally sound. Cracks wider than 1/2-inch at the joint of Vault repaired so that no cracks any inlet/outlet pipe or evidence of soil exist wider than 1/4-inch at the particles entering through the cracks. joint of the inlet/outlet pipe. Baffles Baffles corroding, cracking warping, Baffles repaired or replaced to and/or showing signs of failure as specifications. determined by maintenance/inspection person. Access Ladder Ladder is corroded or deteriorated, not Ladder replaced or repaired Damaged functioning properly, not securely and meets specifications, and is attached to structure wall, missing rungs, safe to use as determined by cracks, and misaligned. inspection personnel. Below Ground Media Drawdown of water through the media Media cartridges replaced. Cartridge Type takes longer than 1 hour, and/or overflow occurs frequently. Short Circuiting Flows do not properly enter filter Filter cartridges replaced. cartridges. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 20 of 28 No. 16—Baffle Oil/Water Separators (API Type) Maintenance Defect Condition When Maintenance is Results Expected When Component Needed Maintenance is Performed General Monitoring Inspection of discharge water for Effluent discharge from vault should obvious signs of poor water be clear with out thick visible sheen. quality. Sediment Sediment depth in bottom of vault No sediment deposits on vault Accumulation exceeds 6-inches in depth. bottom that would impede flow through the vault and reduce separation efficiency. Trash and Debris Trash and debris accumulation in Trash and debris removed from Accumulation vault or pipe inlet/outlet, floatables vault and inlet/outlet piping. and non-floatables. Oil Accumulation Oil accumulations that exceed 1 Extract oil from vault by vactoring. inch, at the surface of the water. Disposal in accordance with state and local rules and regulations. Damaged Pipes Inlet or outlet piping damaged or Pipe repaired or replaced. broken and in need of repair. Access Cover Cover cannot be opened, Cover repaired to proper working Damaged/Not corrosion/deformation of cover. specifications or replaced. Working Vault Structure Vault replaced or repairs made so Damage-Includes that vault meets design Cracks in Walls See"Catch Basins" (No. 5). specifications and is structurally Bottom, Damage to sound. Frame and/or Top Slab Cracks wider than 1/2-inch at the Vault repaired so that no cracks joint of any inlet/outlet pipe or exist wider than 1/4-inch at the joint evidence of soil particles entering of the inlet/outlet pipe. through the cracks. Baffles Baffles corroding, cracking, Baffles repaired or replaced to warping and/or showing signs of specifications. failure as determined by maintenance/inspection person. Access Ladder Ladder is corroded or Ladder replaced or repaired and Damaged deteriorated, not functioning meets specifications, and is safe to properly, not securely attached to use as determined by inspection structure wall, missing rungs, personnel. cracks, and misaligned. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 21 of 28 No. 18—Catch Basin Inserts Maintenance Defect Conditions When Maintenance Results Expected When Component is Needed Maintenance is Performed General Sediment When sediment forms a cap No sediment cap on the insert Accumulation over the insert media of the media and its unit. insert and/or unit. Trash and Debris Trash and debris accumulates Trash and debris removed from Accumulation on insert unit creating a insert unit. Runoff freely flows blockage/restriction. into catch basin. Media Insert Not Effluent water from media insert Effluent water from media insert Removing Oil has a visible sheen. is free of oils and has no visible sheen. Media Insert Water Catch basin insert is saturated Remove and replace media Saturated with water and no longer has the insert. capacity to absorb. Media Insert-Oil Media oil saturated due to Remove and replace media Saturated petroleum spill that drains into insert. catch basin. Media Insert Use Media has been used beyond Remove and replace media at Beyond Normal the typical average life of media regular intervals, depending on Product Life insert product. insert product. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 22 of 28 NO. 20-BIORETENTION RAIN GARDENS Maintenance Defect Conditions When Maintenance is Results Expected When Component Needed Maintenance is Performed Ponding Area Cracks or failure Cracks wider than %inch or Vault repaired or replaced so in concrete maintenance/inspection personnel that it meets design planter reservoir determine that the vault is not specification and is structurally structurally sound sound Failure in Erosion (gullies/rills)greater than 2 Eliminate source of erosion earthen reservoir inches around inlets, outlet, and along and stabilize damaged area (embankments, side slopes (regrade, rock, vegetation, dikes, berms, erosion control blanket) and side slopes) Settlement greater than 4 inches Restore to design height (relative to undisturbed sections of the berm) Downstream face of the berm or Plug holes. Contact embankment wet, seeps or leaks evident geotechnical engineer ASAP. Any evidence of rodent holes or water Eradicate rodents and repair piping around holes if facility acts as a holes(fill and compact) dam or berm Sediment or Accumulation of sediment or debris Remove excess sediment or debris debris. Identify and control the accumulation sediment source, if feasible. Facility should be free of material. May contain standing water. Rockery Rock walls are insecure Stabilize walls reservoir or walls Basin inlet via Soil is exposed or signs of erosion are Repair and control erosion surface flow visible. sources. Basin inlet via Sediment, vegetation, or debris partially Clear the blockage. Identify concentrated or fully blocking inlet structure the source of the blockage and flow(e.g. curb take actions to prevent future cuts) blockages. Basin inlet Water splashes adjacent buildings Reconfigure/repair blocks. splash block failure Water disrupts soil media. Inlet/outlet pipe Pipe is damaged. Repair/replace pipe. failure Pipe is clogged. Remove roots or debris. Outlet pipe/ Sediment, vegetation, or debris is Clear the blockage. Identify structure failure partially or fully blocking the outlet the source of the blockage and structure. take actions to prevent future blockages. Trash rack Trash or debris present on trash rack. Clean and dispose of trash. failure Bar screen damaged or missing. Replace bar screen. Check dams and Sediment, vegetation, or debris is Clear the blockage. Identify weirs failures partially or fully blocking the check dam the source of the blockage and or weir. take actions to prevent future blockages. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 23 of 28 NO. 20-BIORETENTION RAIN GARDENS Maintenance Defect Conditions When Maintenance is Results Expected When Component Needed Maintenance is Performed Ponding Area Check dams and Erosion and/or undercutting is present. Repair and take preventative weirs failures measures to prevent future erosion and/or undercutting. Flow spreader Sediment blocks 35%or more of Remove and dispose of problems ports/notches or, sediment fills 35%or sediment. more of sediment trap. Grade board/baffle damaged or not Remove and reinstall to level level. position. Overflow/ Overflow spillway is partially or fully Remove and dispose of emergency plugged with sediment or debris. sediment. spillway Native soil is exposed, or other signs of Repair erosion and stabilize erosion are present. surface of spillway. Spillway armament is missing. Replace armament. Bioretention soil Water remains in the basin 48 hours or Ensure that underdrain(if longer after the end of a storm. present)is not clogged. If necessary, clear underdrain. If this is not the problem,the bioretention soil is likely clogged. Remove the upper 2 to 3 inches of soil and replace with imported bioretention soil. Identify sources of clogging and correct. Vegetation Bottom swale Less than 80%of swale bottom is vegetation covered with healthy wetland vegetation. Plant additional vegetation. Ideally, planting should be Upland slope Less than 70%of upland slopes are performed in the fall or winter. vegetation covered with healthy vegetation. Trees and Large trees and shrubs interfere with Prune or remove large trees shrubs operation of the basin or access for and shrubs. maintenance Standing dead vegetation is present Remove standing dead vegetation when covering greater than 10%of the basin area. Replace dead vegetation annually or immediately if necessary to control erosion (e.g. on a steep slope). Mulch Bare spots(without much cover)are Replenish with the appropriate present or mulch covers less than 3 type of mulch to cover bare inches deep for compost or 4 inches spots and augment to deep for coarse,woody mulch. minimum depth. Clippings Grass or other vegetation clippings Remove clippings. accumulate to 2 inches or greater in depth. Vegetation Noxious weeds Listed noxious vegetation is present. By law, noxious weeds must See Pierce County noxious weed list. be removed and disposed immediately. Herbicides and pesticides shall not be used in order to protect water quality. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 24 of 28 NO. 20-BIORETENTION RAIN GARDENS Maintenance Defect Conditions When Maintenance is Results Expected When Component Needed Maintenance is Performed Weeds Weeds are present(unless on edge and Remove and dispose of weed providing erosion control). material. Herbicides and pesticides shall not be used in order to protect water quality. Irrigation Irrigation system Irrigation system present Follow manufacturer's (if any) instructions for O&M Plant watering Plant establishment period (1-3 years) Water weekly during periods of no rain to ensure plant establishment Longer term period (3+years) Water during drought conditions or more often if necessary to maintain plant cover. Spill Prevention Spill prevention Storage or use of potential contaminants Exercise spill prevention and Response in the vicinity of the facility. measures whenever handling or storing potential contaminants. Spill response Release of pollutants. Call to report any Cleanup spills as soon as spill to the Washington Dept. of possible to prevent Emergency Management contamination of stormwater. 1-800-258-5990 Training and Training/written Training/written guidance is required for Provide property owners and Documentation guidance proper O&M tenants with proper training and a copy of the O&M manual and Landscape and Maintenance Manual. Safety Safety(slopes) Erosion of sides causes slope to exceed Take actions to eliminate the 1:4 or otherwise become a hazard. hazard. Safety(hydraulic Hydraulic structures(pipes, culverts, Take actions to eliminate the structures) vaults, etc.)become a hazard to children hazard (such as covering and playing in and around the facility. securing any openings). Line of sight Vegetation causes some visibility(line of Prune. sight) or driver safety issues. Aesthetics Aesthetics Damage/vandalism/debris accumulation Restore facility to original aesthetic conditions. Grass/vegetation Less than 75% of planted vegetation is Take appropriate maintenance healthy with a generally good actions(e.g. remove/replace appearance. plants, amend soil, etc.) Edging Grass is starting to encroach on swale. Repair edging. Pest Control Mosquitoes Standing water remains in the basin for Identify the cause of the more than three days following storms. standing water and take appropriate actions to address the problem (see Boiretention Soil above) Rodents Rodent holes are present near the Fill and compact the soil facility. around the holes(refer to Integrated Pest Management). FAC12-0007 Storm Water Easement and Maintenance Agreement Page 25 of 28 NO. 22-COMPOST AMENDED SOIL Maintenance Defect Conditions When Maintenance Is Results Expected Component Needed When Maintenance Is Performed General Facility Soil media Vegetation not fully covering ground Re-mulch landscape Requirements (maintain high surface beds with 2-3 inches of organic soil mulch until the content) vegetation fully closes over the ground surface Preventative maintenance Return leaf fall and shredded woody materials from the landscape to the site as mulch. On turf areas, "grasscycle"((mulch- mow or leave the clippings)to build turf health. Avoid broadcast use of pesticides(bug and weed killers)like"weed &feed",which damage the soil life. Where fertilization is needed (mainly turf and annual flower beds), use a moderate fertilizationprogram that relies on natural organic fertilizers(like compost) or slow- release synthetic balanced fertilizers. Compaction Soils become waterlogged, do not To remediate, aerate appear to be infiltrating. soil, till or further amend soil. If drainage isstill slow, consider investigating alternative causes (e.g. high wet- season groundwaterlevels, low- permeability soils).Also consider land use and protection from compacting activities. If areas are turf, aerate compacted areas and top dress them with '/4 to 1/2 inch of compost to renovate them. Erosion/scouring Areas of potential erosion are visible. Take steps to repair or prevent erosion. Indentify and address the causes of erosion. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 26 of 28 NO. 22-COMPOST AMENDED SOIL Maintenance Defect Conditions When Maintenance Is Results Expected Component Needed When Maintenance Is Performed General Facility Grass/vegetation Less than 75%of planted vegetation is Take appropriate Requirements healthy with a generally good maintenance actions appearance. (e.g. remove/replace plants). Noxious weeds Listed noxious vegetation is present. By law, loxious weeds See Pierce County noxious weed list. must be removed and disposed immediately. Herbicides and pesticides shall not be used in order to protect water quality. Weeds Weeds are present. Remove and dispose of weed material. Herbicides and pesticides shall not be used in order to protect water quality. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 27 of 28 NO.24-PERVIOUS PAVEMENT Maintenance Defect Conditions When Maintenance Is Results Expected Component Needed When Maintenance Is Performed Surface Pervious asphalt Maintenance to prevent clogging with Use conventional street or cement fine sediment. sweepers equipped concrete with vacuums. Prohibit use of sand and sealant application and protect from construction runoff. Major cracks or trip hazards Fill with patching mixes. Large cracks and settlement may require cutting and replacing the pavement section. Utility cuts Any damage or change due to utility cuts must be replaced in kind. Fallen Fallen leaves or debris Remove/dispose leaves/debris Interlocking Interlocking paving block missing or Replace paver block concrete paver damaged. blocks Settlement of surface May require resettling Sediment or debris accumulation Remove/dispose between paver blocks Loss of void material between paver Refill per blocks manufacturer's recommendations. Varied conditions Perform O&M per manufacturer's recommendations. FAC12-0007 Storm Water Easement and Maintenance Agreement Page 28 of 28