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Home My WebLink AboutRC 20171221000999Instrument Number: 20171221000999 Document:COV Rec: $163.00 Page-1 of 16 Record Date:12/21/2017 2:53 PM Electronically Recorded King County, WA Ifs r►INOTIMM City Clerk's Office City of Renton 1055 S Grady Way Renton, WA 98057 Grantor: L!eqaqy Renton LLC Grantee: City of Renton Legal Description: Fartionof. Lot312 C.D. Hillman's Lake WasjjLi32,LQn Garden of Eden Division No. 5., .recorded in volume 11 Qf,_R ats, ace 83 __in Kjp_q Count,�,w,[niaghington, Assessor's Tax Parcel ID#: 334450--0007 IN CONSIDERATION of the approved City of Renton (check one of the following) U residential building permit, 0 commercial building permit, ® clearing and grading permit, ® subdivision permit, or ® short subdivision permit for application file No. LUUA/SWP v 15 0 0 2 518 relating to the real property ("Property") described above the _....._._._._..... ......e...... Grantor(s), the owner(s) in fee of that Property, hereby covenants(covenant) with the City of Renton, a political subdivision of the state of Washington, that he/she(they) will observe, consent to, and abide by the conditions and obligations set forth and described in Paragraphs 1 through 9 below with regard to the Property, and hereby grants(grant) an easement as described in Paragraphs 2 and 3. Grantor(s) hereby grants(grant), covenants(covenant), and agrees(agree) as follows: 1. The Grantor(s) or his/her(their) successors in interest and assigns ("Owners ") shall at their own cost, operate, maintain, and keep in good repair, the Property's drainage facilities constructed as required in the approved construction plans and specifications _s WP 3 8 20 on file with the City of Renton and submitted to the City of Renton for the review and approval of on U15002518 The property's drainage facilities are shown and/or listed on Exhibit A. The property's drainage facilities shall be maintained in compliance with the operation and maintenance schedule included and attached herein as Exhibit B. Drainage facilities include pipes, channels, flow control facilities, water quality facilities, on -site best management practices (BMPs) and other engineered structures designed to manage and/or treat stoxmwater on the Property. On -site BMPs include dispersion and infiltration devices, bioretention, permeable pavements, rainwater harvesting systems, tree retention credit, reduced impervious surface footprint, vegetated roofs and other measures designed to mimic pre -developed hydrology and minimize stormwater runoff on the Property. 2. City of. Renton shall have the right to ingress and egress over those portions of the Property necessary to perform inspections of the stormwater facilities and BMPs and conduct maintenance activities specified in this Declaration of Covenant and in accordance with the Renton Municipal Code. City of Renton shall provide at least 30 days written notice to the Owners that entry on the Property is Page 1 of 3 Instrument Number: 20171221000999 Document:COV Rec: $163.00 Page-2 of 16 Record Date:12/21/2017 2:53 PM King County, WA Instrument Number: 20171221000999 Document:COV Rec: $163.00 Page-3 of 16 Record Date:12/21/2017 2:53 PM King County, WA I'm TpMM7aTFTrks),TTT kirantor-s(s,) successors in interest, and assigns. 9. This Declaration of Covenant may be terminated by execution of a written agreement by the Owners and the City that is recorded by King County in its real property records. IN WITNESS WHEREOF, this Declaration of Covenant for the Inspection and Maintenance of I - Drainage Facilities is executed this 5- day of GRANTOR, o r of the Property STATE OF WASHINGTON ) COUNTY OF KING )ss. Oil this day personally appeared before me: 111111166 Given under my hand and official seal this day of m &CEAA,%VY--P— 20 1 /1 14 la n c G, b+K'i ? NOWY pubfic 40 �*Nc Printed Hanna stato of waftoton Notary Public in and for the State of Washington, KAJTLAN MCCARTHY 0 My App0W":n:w*"qLEx:pjM j&ft 15, 2020 residing at M Instrument Number: 20171221000999 Document:COV Rec: $163.00 Page-4 of 16 Record Date:12/21/2017 2:53 PM King County, WA Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-5 of 16 Record Date:12/21/2017 2:53 PM King County, WA Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris 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 BMPs 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. Tank or Vault Trash and debris Any trash and debris accumulated in vault or No trash or debris in vault. Storage Area tank (includes floatables and non-floatables). Sediment Accumulated sediment depth exceeds 10% of All sediment removed from storage accumulation the diameter of the storage area for'% length of area. storage vault or any point depth exceeds 15% of diameter. Example: 72-inch storage tank would require cleaning when sediment reaches depth of 7 inches for more than '/2 length of tank. Tank Structure Plugged air vent Any blockage of the vent. Tank or vault freely vents. Tank bent out of Any part of tank/pipe is bent out of shape more Tank repaired or replaced to design. shape than 10% of its design shape. Gaps between A gap wider than 1/2-inch at the joint of any tank No water or soil entering tank sections, damaged sections or any evidence of soil particles entering through joints or walls. joints or cracks or the tank at a joint or through a wall. tears in wall Vault Structure Damage to wall, Cracks wider than 1/2-inch, any evidence of soil Vault is sealed and structurally frame, bottom, and/or entering the structure through cracks or qualified sound. top slab inspection personnel determines that the vault is not structurally sound. Inlet/Outlet Pipes 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 1/2-inch at the joint of the No cracks more than 1/-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. 2016 Surface Water Design Manual — Appendix A 4/24/2016 Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-6 of 16 Record Date:12/21/2017 2:53 PM King County, WA {v?�tnns =�fr�#saxatrmvtha)�t� ansn t�rJ Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed 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. Bolts cannot be seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and remove cover/lid after applying 80 Ibs 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; covers 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. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-7 of 16 Record Date:12/21/2017 2:53 PM King County, WA 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 '% 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 structure. by more than 10%. Trash or debris in the structure that exceeds 1/3 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'/a inch past Frame is even with curb. and/or top slab curb face into the street (If applicable). Top slab has holes larger than 2 square inches Top slab is free of holes and cracks. or cracks wider than '/a inch. Frame not sitting flush on top slab, i.e., Frame is sitting flush on top slab. separation of more than'/a 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 1 foot No cracks more than 1/4 inch wide at at the joint of any inlet/outlet pipe or any the joint of inlet/outlet pipe. evidence 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 pipe joints Cracks wider than''/Anch at the joint of the No cracks more than 1/4-inch wide at inlet/outlet pipes or any evidence of soil entering the joint of inlet/outlet pipes. the structure at the joint of the inlet/outlet 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 1,000 Ibs 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. 2016 Surface Water Design Manual — Appendix A 4/24/2016 Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-8 of 16 Record Date:12/21/2017 2:53 PM King County, WA �';�tQ�''��" Aprr�iX.;Minfr,att Requirrmrifar: Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Cleanout Gate Damaged or missing Cleanout gate is missing. Replace cleanout gate. Cleanout gate is not watertight. Gate is watertight and works as designed. Gate cannot be moved up and down by one Gate moves up and down easily and maintenance person. is watertight. Chain/rod leading to gate 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 blocking (or having the Pipe is free of all obstructions 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/Outlet 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''/Anch at the joint of the No cracks more than 1/-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. Metal Grates Unsafe grate opening Grate with opening wider than 7/8 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. footnote to guidelines for disposal 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 seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and Remove cover/lid after applying 80 lbs. of lift. reinstalled by one maintenance person. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-9 of 16 Record Date:12/21/2017 2:53 PM King County, WA s 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 '% cubic foot which No Trash or debris blocking or is located 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 1/ the depth from the bottom of basin to invert basin. 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 foot 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'/a inch past Frame is even with curb. and/or top slab curb face into the street (If applicable). Top slab has holes larger than 2 square inches Top slab is free of holes and cracks. or cracks wider than '/a inch. Frame not sitting flush on top slab, i.e., Frame is sitting flush on top slab. separation of more than'/a inch of the frame from the top slab. Cracks in walls or Cracks wider than'% inch and longer than 3 feet, 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'% inch and longer than 1 foot No cracks more than 1/4 inch wide at at the joint of any inlet/outlet pipe or any the joint of inlet/outlet pipe. evidence 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''/Anch at the joint of the No cracks more than 1/4-inch wide at inlet/outlet pipes or any evidence of soil entering the joint of inlet/outlet pipes. the catch basin at the joint of the inlet/outlet 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. Inlet/Outlet 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''/Anch at the joint of the No cracks more than 1/4-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. 2016 Surface Water Design Manual — Appendix A 4/24/2016 Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-10 of 16 Record Date:12/21/2017 2:53 PM King County, WA �*-C�C#4A�M� Ap�endtx M#ntnrtws Regui�f#meril+ 1Ci AlflI�N�iK��S SttlgfYlyNfGISt1�tl�(4§ 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 7/8 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. footnote to guidelines for disposal 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 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 seated. Self-locking cover/lid does not work. Cover/lid difficult to One maintenance person cannot remove Cover/lid can be removed and Remove cover/lid after applying 80 lbs. of lift. reinstalled by one maintenance person. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-11 of 16 Record Date:12/21/2017 2:53 PM King County, WA " tcrnet Eili end, Cnr�Gii1S- " Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Pipes Sediment & debris Accumulated sediment or debris that exceeds Water flows freely through pipes. accumulation 20% of the diameter of the pipe. Vegetation/roots Vegetation/roots 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 Protective coating is damaged; rust or corrosion Pipe repaired or replaced. coating or corrosion is weakening the structural integrity of any part of pipe. Damaged Any dent that decreases the cross section area Pipe repaired or replaced. of pipe by more than 20% or is determined to have weakened structural integrity of the pipe. Ditches Trash and debris Trash and debris exceeds 1 cubic foot per 1,000 Trash and debris cleared from square feet of ditch and slopes. ditches. Sediment Accumulated sediment that exceeds 20% of the Ditch cleaned/flushed of all accumulation design depth. sediment 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 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 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. 2016 Surface Water Design Manual — Appendix A 4/24/2016 Instrument Number: 20171221000999 Document:COV Rec: 5163.00 Page-12 of 16 Record Date:12/21/2017 2:53 PM King County, WA CIS C �l��ina��,�e��+�erirr��, ft�r �torntu✓�r �iiiir�� m�,�Jn-)fps �3�+1`P' 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 BMPs 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. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-13 of 16 Record Date:12/21/2017 2:53 PM King County, WA Maintenance Defect or Problem Condition When Maintenance is Needed Results Expected When Component Maintenance is Performed Site Trash and debris Any trash and/or debris accumulated on the No trash or debris on the bioswale bioswale site. site. 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. Swale Section Sediment Sediment depth exceeds 2 inches in 10% of the No sediment deposits in grass accumulation swale treatment area. treatment area of the bioswale. Sediment inhibits grass growth over 10% of Grass growth not inhibited by swale length. sediment. Sediment inhibits even spreading of flow. Flow spreads evenly through swale Erosion/scouring Eroded or scoured swale bottom due to No eroded or scoured areas in channelization or high flows. bioswale. Cause of erosion or scour addressed. Poor vegetation Grass is sparse or bare or eroded patches occur Swale has no bare spots and grass coverage in more than 10% of the swale bottom. is thick and healthy. Grass too tall Grass excessively tall (greater than 10 inches), Grass is between 3 and 4 inches grass is thin or nuisance weeds and other tall, thick and healthy. No clippings vegetation have taken over. left in swale. No nuisance vegetation present. Excessive shade Grass growth is poor because sunlight does not Health grass growth or swale reach swale. converted to a wet bioswale. Constant baseflow Continuous flow through the swale, even when it Baseflow removed from swale by a has been dry for weeks or an eroded, muddy low -flow pea -gravel drain or channel has formed in the swale bottom. bypassed around the swale. Standing water Water pools in the swale between storms or Swale freely drains and there is no does not drain freely. standing water in swale between storms. Channelization Flow concentrates and erodes channel through No flow channels in swale. swale. Flow Spreader Concentrated flow Flow from spreader not uniformly distributed Flows are spread evenly over entire across entire swale width. swale width. Inlet/Outlet 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''/Anch at the joint of the No cracks more than 1/4-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. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-14 of 16 Record Date:12/21/2017 2:53 PM King County, WA Maintenance Defect Condition When Maintenance is Needed Results Expected When Component I I I Maintenance is Performed Large access Damaged or difficult Large access doors or plates cannot be doors/plate to open opened/removed using normal equipment. Gaps, doesn't cover Large access doors not flat and/or access completely opening not completely covered. Replace or repair access door so it can opened as designed. Doors close flat and cover access 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. `►�+ Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Media Insert Visible Oil Visible oil sheen passing through media Media inset replaced. Insert does not fit Flow gets into catch basin without going through All flow goes through media. catch basin properly media. Filter media plugged Filter media plugged. Flow through filter media is normal. Oil absorbent media Media oil saturated. Oil absorbent media replaced. saturated Water saturated Catch basin insert is saturated with water, which Insert replaced. no longer has the capacity to absorb. Service life exceeded Regular interval replacement due to typical Media replaced at manufacturer's average life of media insert product, typically one recommended interval. month. Seasonal When storms occur and during the wet season. Remove, clean and replace or install maintenance new insert after major storms, monthly during the wet season or at manufacturer's recommended interval. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-15 of 16 Record Date:12/21/2017 2:53 PM King County, WA a 1%Aa Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Preventative Surface cleaning/ Media surface vacuumed or pressure washed No dirt, sediment, or debris clogging vegetation control annually, vegetation controlled to design porous media, or vegetation limiting maximum. Weed growth suggesting sediment infiltration. accumulation. Porous Concrete, Trash and debris Trash and debris on the pavement interfering No trash or debris interfering with Porous Asphaltic with infiltration; leaf drop in fall season. infiltration. Concrete, and Permeable Pavers Sediment Sediment accumulation on the pavement Pavement infiltrates as designed; accumulation interfering with infiltration; runoff from adjacent adjacent areas stabilized. areas depositing sediment/debris on pavement. Infiltration rate Pavement does not infiltrate at a rate of 10 Pavement infiltrates at a rate greater inches per hour. than 10 inches per hour. Pending Standing water for a long period of time on the Standing water infiltrates at the surface of the pavement. desired rate. Broken or cracked Pavement is broken or cracked. No broken pavement or cracks on pavement the surface of the pavement. Settlement Uneven pavement surface indicating settlement Pavement surface is uniformly level. of the subsurface layer. Moss growth Moss growing on pavement interfering with No moss interferes with infiltration. infiltration. Inflow Inflow to the pavement is diverted, restricted, or Inflow to pavement is unobstructed depositing sediment and debris on the and not bringing sediment or debris pavement. to the pavement. Underdrain Underdrain is not flowing when pavement has Underdrain flows freely when water been infiltrating water. is present. Overflow Overflow not controlling excess water to desired Overflow permits excess water to location; native soil is exposed or other signs of leave the site at the desired location; erosion damage are present. Overflow is stabilized and appropriately armored. Permeable Pavers Broken or missing Broken or missing paving blocks on surface of No missing or broken paving blocks pavers pavement. interfering with infiltration. Level surface Uneven surface due to settlement or scour of fill Pavement surface is uniformly level. in the interstices of the paving blocks. Compaction Poor infiltration due to soil compaction between No soil compaction in the interstices paving blocks. of the paver blocks limiting infiltration. Dead grass Grass in the interstices of the paving blocks is Healthy grass is growing in the dead. interstices of the paver blocks. Inspection Frequency Annually and after large storms, and as needed Permeable pavement is functioning seasonally to control leaf drop, evergreen normally. needles etc. 4/24/2016 2016 Surface Water Design Manual — Appendix A Instrument Number: 20171221000999 Document:COV Rec: S163.00 Page-16 of 16 Record Date:12/21/2017 2:53 PM King County, WA j N"'7 � �/�� ►r Ci' ' 3M ? �Retairted h zons w 'f raefsr ftc) tc rm 3r t r il)t1 �n� Maintenance Defect or Problem Conditions When Maintenance is Needed Results Expected When Component Maintenance is Performed Preventative Vegetation Vegetation to be watered and pruned as needed Healthy vegetation growth with full to maintain healthy growth. coverage as designed. Site Trash and debris Trash and debris has accumulated on the Vegetated roof free of any trash or vegetated roof. debris. Waterproof Leaking Waterproof membrane breached. Waterproof membrane has no tears Membrane or holes allowing water through it. Drainage Layer Drainage pathway Drainage layer flow plugged or obstructed. Drainage layer passing water with no obstruction. Drainage Overflow Drainage of overflow is obstructed. Overflow has no obstruction. Growth Media Compaction Soil in the growth media area compacted. No part of the growth media is compacted. Erosion Growth media washed out. Growth media is not being washed away. Nutrients Plants are not thriving. Growth media has proper nutrients to support plant growth. Vegetation Vegetation Type Vegetation species not succulents, grass, herbs, Correct species of vegetation is and/or wildflowers adapted to harsh conditions. used. Vegetation Area Healthy vegetation covers less than 90% of Healthy vegetation covers more vegetation area. than 90% of vegetation area. Undesirable Weeds and other undesirable plants are invading No undesirable vegetation occurs in Vegetation more than 10% of vegetated area. the vegetated area. No herbicides or pesticides used to control undesirable vegetation. Special Vegetation Special vegetation not thriving. Special vegetation is kept healthy and inspected on frequent schedule. Border Zone Access Border zone limited by vegetation overgrowth or Border zone is kept open so other means. vegetated area is accessible. Gravel Stop Containment Gravel stop does not contain overflow or divert it Overflow water is only exits from to a designed outlet. the designed outlet. Inspection Frequency Annually and after large storms. Rain harvesting equipment is functioning normally. Vegetation inspected monthly. Vegetation is kept healthy and thriving. 4/24/2016 2016 Surface Water Design Manual — Appendix A