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HomeMy WebLinkAboutRC 20181206000177Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-1 of 17 Record Date:12/6/2018 9:55 AM Electronically Recorded King County, WA RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: CITY CLERK'S OFFICE CITY OF RENTON 1055 SOUTH GRADY WAY RENTON WA 98057 DECLARATION OF COVENANT FOR MAINTENANCE AND INSPECTION OF FLOW CONTROL SMPS Grantor: Renton School District Grantee: City of Renton Legal Description: Tracts A and C, Block 5, Renton Highlands No.3 , Corrected Plat recorded recorded in Volume 57 o Plats, Pages 92 to 98, inclusive, records of King County, Washington, LESS that portion lying Easterly of a line beginning at the Northwest corner of Tract B of said plat; thence north 04 41 00 East to the Northerly line of Tract C. Additional Legal(s) on: Assessor's Tax Parcel ID#: 722780-0135 IN CONSIDERATION of the approved City of Renton(check one of the following) ❑ residential building permit, ® commercial building permit, ❑ clearing and grading permit, ❑ subdivision permit, or ❑ short subdivision permit for Application File No. LUA/SWP B13002911 , R-3640 relating to the real property ("Property") described above, the Grantor(s), the owner(s) in fee of that Property, hereby Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-2 of 17 Record Date:12/6/2018 9:55 AM King County, WA covenants(covenant) with City or Renton, a political subdivision of the state of Washington, that lie/shc(they) will observe, consent to, and abide by the conditions and obligations set forth and described in Paragraphs 1 through 8 below with regard to the Property. Grantor(s) hereby grants(grant), coven ants(covenant), and agrees(agree) as follows: 1. Grantor(s) or his/her(their) successors in interest and assigns ("Owners") shall retain, uphold, and protect the stormwater management devices, features, pathways, limits, and restrictions, known as flow control best management practices ("BMPs"), shown on the approved Flow Control BMP Site Plan for the Property attached hereto and incorporated herein as Exhibit A. 2. The Owners shall at their own cost, operate, maintain, and keep in good repair, the Property's BMPs as described in the approved Design and Maintenance Details for each BMP attached hereto and incorporated herein as Exhibit B. 3. City or Renton shall provide at least 30 days written notice to the Owners that entry on the Property is planned for the inspection of the BMPs. After the 30 days, the Owners shall allow the City of Renton to enter for the sole purpose of inspecting the BMPs. In lieu of inspection by the City, the Owners may elect to engage a licensed civil engineer registered in the state of Washington who has expertise in drainage to inspect the BMPs and provide a written report describing their condition. If the engineer option is chosen, the Owners shall provide written notice to the City of Renton within fifteen days of receiving the City's notice of inspection. Within 30 days of giving this notice, the Owners, or the engineer on behalf of the Owners, shall provide the engineer's report to the City of Renton. If the report is not provided in a timely manner as specified above, the City of Renton may inspect the BMPs without further notice. 4. If the City determines from its inspection, or from an engineer's report provided in accordance with Paragraph 3, that maintenance, repair, restoration, and/or mitigation work is required for the BMPs, The City shall notify the Owners of the specific maintenance, repair, restoration, and/or mitigation work (Work) required tinder RMC 4-6-030. The City shall also set a reasonable deadline for completing the Work or providing an engineer's report that verifies completion of the Work. After the deadline has Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-3 of 17 Record Date:12/6/2018 9:55 AM King County, WA passed, the Owners shall allow the City access to re -inspect the BMPs unless an engineer's report has been provided verifying completion of the Work. If the work is not completed properly within the time frame set by the City, the City may initiate an enforcement action. Failure to properly maintain the BMPs is a violation of RMC 4-6-030 and may subject the Owners to enforcement under the RMC 1-3, including fines and penalties. 5. Apart from performing routine landscape maintenance, the Owners are hereby required to obtain written approval from the City or Renton before performing any alterations or modifications to the BMPs. 6. Any notice or approval required to be given by one party to the other under the provisions of this Declaration of Covenant shall be effective upon personal delivery to the other party, or after three (3) days from the date that the notice or approval is mailed with delivery confirmation to the current address on record with each Party. The parties shall notify each other of any change to their addresses. 7. This Declaration of Covenant is intended to promote the efficient and effective management of surface water drainage on the Property, and it shall inure to the benefit of all the citizens of the City of Renton and its successors and assigns. This Declaration of Covenant shall run with the land and be binding upon Grantor(s), and Grantor's(s') successors in interest and assigns. 8. This Declaration of Covenant may be terminated by execution of a written agreement by the Owners and the City of Renton that is recorded by King County in its real property records. Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-4 of 17 Record Date:12/6/2018 9:55 AM King County, WA IN WITNESS WHEREOF, this Declaration of Covenant for the. Maintenance and Inspection of Flow Control BMPs is executed this ,'day oF;:,. � � ° �' 20 &e GRANTOR, owner of the Property STATE OF W'ASI IINGTON ) COUNTY OF KING jss.. On this day personally appeared before nae: _ 12o'-'11-7uz a f " ' : to me known to be the individual(s) described in and who executed tl e within and foregoing instrument and acknowledged that they signed the same as their free and voluntary act and deed, for the uses and purposes therein stated. Given under my hand and official seal this day of e 12 20 Notary Pabis`c State atWashington S08' DOLE Printed name imntmrment expires Nov 2, 21 Notary Public in .and for the State of Washington, residing at y appoinunent expires °' r "aht", , ' s Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-5 of 17 Record Date:12/6/2018 9:55 AM King County, WA RAINGA13QEN „C" AND INFILTRATION TRENCH #3 RAINGARDEN "Q" AND INFILTRATION TRENCH #4 N HORIZONTAL SCALE EXHIBIT "A" NE 16TH ST 0 75 150 300 1 " = 150 FEET I N FI LTR A�I ON TRENCH+#2 u INFILTRATION TRENCH #1 INFILTRATION TRENCH #6 IANRENCH INGARDEN 'A" D INFILTR#ON #5 NE 16TH STREET RAINGARDEN PROJECT NO. 210515.10 JUNE 22, 2016 STORMWATER FACILITIES Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-6 of 17 Record Date:12/6/2018 9:55 AM King County, WA EXHIBIT B OPERATIONS AND MAINTENANCE THIS DOCUMENT CONTAINS A SUMMARY OF THE O&M REQUIREMENTS FOR THE SITE'S STORMWATER BMPS. THE OWNER SHALL MAINTAIN THIS O&M DOCUMENT AND APPEND AS REQUIRED. C.2.2.6 MAINTENANCE INSTRUCTIONS FOR FULL INFILTRATION If the full infiltration flow control BMP is proposed for a project, the following maintenance and operation instructions must be recorded as an attachment to the required declaration of covenant and grant of easement per Requirement 3 of Section C.1.3.3 (p, C-18). The intent of these instructions is to explain to future property owners, the purpose of the BMP and how it must be maintained and operated. These instructions are intended to be a minimum; DDES may require additional instructions based on site - specific conditions. Also, as the County gains more experience with the maintenance and operation of these BMPS, future updates to the instructions will be posted on King County's Sluface Water Design Manual website. ❑ TEXT OF INSTRUCTIONS Your property contains a stormwater management flow control BMP (best management practice) called "full infiltration," which was installed to mitigate the stormwater quantity and quality impacts of some or all of the impervious surfaces on your property. Full infiltration is a method of soaking runoff from impervious area (such as paved areas and roofs) into the ground. if properly installed and maintained, full infiltration can manage runoff so that a majority of precipitation events are absorbed. Infiltration devices, such as gravel filled trenches, drywells, and ground surface depressions, facilitate this process by putting runoff in direct contact with the soil and holding the runoff long enough to soak most of it into the ground, To be successful, the soil condition around the infiltration device must be reliably able to soak water into the ground for a reasonable number of years. The infiltration devices used on your property include the following as indicated on the flow control BMP site plan: Cl gravel filled trenches, 0 drywells, Cl ground surface depressions. The size, placement, and composition of these devices as depicted by the flow control BMP site plan and design details must be maintained and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. Infiltration devices must be inspected annually and after major storm events to identify and repair any physical defects. Maintenance and operation of the system should focus on ensuring the system's viability by preventing sediment -laden flows from entering the device. Excessive sedimentation will result in a plugged or non-functioning facility. if the infiltration device has a catch basin, sediment accumulation must be removed on a yearly basis or more frequently if necessary. Prolonged ponding around or atop a device may indicate a plugged facility. If the device becomes plugged, it must be replaced. Keeping the areas that drain to infiltration devices well swept and clean will enhance the longevity of these devices. For roofs, frequent cleaning of gutters will reduce sediment loads to these devices. Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-7 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO.2 - INFILTRATION FACILITIES Maintenance Defect or Problem Conditions when Maintenance Is Deeded 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 BMP9 implemented if appropriate. No contaminants present other than a surface oll film. Grasslgroundcover Grass or groundcover exceeds 18 inches in Grass or groundcover mowed to a height. height no greater than 6 Inches. Infiltration Pond, Top Rodent holes Any evidence of rodent holes if facility is acting Rodents removed or destroyed and or Side Slopes of as a dam or berm, or any evidence of water dam or berm repaired. Dam. Berm or Embankment piping through dam or berm via rodent holes. Tree growth Tree growth threatens integrity of darns, berms or Trees do not hinder facility slopes, does not allow maintenance access, or performance or maintenance interferes with maintenance activity, If trees are activities. not a threat to dam, berm, or embankment integrity or not interfering with access or maintenance, they do not need to be removed. Erosion Eroded damage over 2 inches deep where cause Slopes stabilized using appropriate of damage Is still present or where there is erosion control measures. If erosion potential for continued erosion. Any erosion is occurring on compacted slope, a observed on a compacted slope, licensed civil engineer should be consulted to resolve source of erosion. Settlement Any part of a dam, berm or embankment that has Top or side slope restored to design settled a inches lower than the design elevation. dimensions. If settlement is significant, a licensed civil engineer should be consulted to determine the cause of the settlement_ Infiltration Pond, Sediment if two Inches or more sediment is present or a Facility infiltrates as designed. Tank, Vault, Trench, accumulation percolation test Indicates facility is working at or or Small Basin less than 90% of design. Storage Area Infiltration Tank Plugged air vent Any blockage of the vent. Tank or vault freely vents. Structure Tank bent out of Any part of tanklpipe 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 34-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 Infiltration Vault Damage to wall, Cracks wider than any evidence of soil Vault is sealed and structurally Structure frame, bottom, and/or entering the structure through cracks or qualified sound, top stab inspection personnel determines that the vault is not structurally sound. Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-8 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO.2 - INFILTRATION FACILITIES I Maintenance Defect or Problem Conditions When Maintenance Is Needed Results Expected When Component Maintenance Is Performed Inlet/Outlet Pipes Sediment Sediment filling 20% or more of the pipe. Inlettoutlet 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 3/-inch at the joint of the No cracks more than %-inch wide at inletfoutlet pipes or any evidence of soil entering the joint of the inlefloullet pipe. at the joints of the inleVoutlet pipes. Access Manhole Coverllid not in place Cover/lid is missing or only partially in place. Manhole access covered. Any open manhole requires immediate maintenance, Locking mechanism not working Mechanism cannot be opened by one Mechanism opens with proper tools. maintenance person with proper tools. Bolts cannot be seated, Self-locking cover/lid does not work. Coverllid 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. Ladder rungs unsafe Missing rungs, misalignment, rust, or cracks. Ladder meets design standards. Allows maintenance person safe access. Large access doors/plate Damaged or difficult . to open Large access doors or plates cannot be Replace or repair access door soil opened/removed using normal equipment. can opened as designed. Gaps, doesn't cover completely Large access doors not flat and/or access not Doors close flat and covers access opening completely covered. opening completely. Lifting Rings missing, Lifting rings not capable of lifting weight of door I-Ifting rings Sufficient to lift or rusted or plate, remove door or plate. Infiltration Pond, Tank, Vault, Trench, Plugged Filter bag more than'f2 full, Replace filter bag or redesign or Small Basin Filter system. Bags Infiltration Pond, Tank, Vault, Trench, Sediment accumulation 6" or more of sediment has accumulated. Pre-seftling occurs as designed or Small Basin Pre - settling Ponds and Vaults Infiltration Pond, Rock Filter Plugged High water level on upstream side of filter Rock filter replaced evaluate need remains for extended period of time or little or no for filter and remove if not water flows through filter during heavy rain necessary. storms. Infiltration Pond Emergency Overflow Rock missing Only one layer of rock exists above native soil in Spillway restored to design Spillway area five square feet or larger, or any exposure of standards. native soil at the tap of out flow path of spillway. Rip -rap on inside slopes need not be replaced. Tree growth Tree growth impedes flow or threatens stability of Trees removed. Spillway, Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-9 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO. b - CATCH BASINS AND MANHOLES Maintenance Component Defect or Problem Condition When Maintenance is Needed Results Expected When Maintenance is Performed Structure Sediment Sediment exceeds 60% of the depth from the bottom of the catch basin to the invert of the lowest pipe into or out of the catch basin or is Sump of catch basin contains no sediment. 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'/2 cubic foot which is located immediately in front of the catch basin opening or is blocking capacity of the catch basin by more than 10%. No Trash or debris blocking or potentially blocking entrance to catch basin. Trash or debris In the catch basin that exceeds '/3 the depth from the bottom of basin to invert the No trash or debris in the catch basin. lowest pipe into or out of the basin. Dead animals or vegetation that could generate odors that could cause complaints or dangerous gases (e.g., methane). No dead animals or vegetation present within catch basin. Deposits of garbage exceeding 1 cubic foot in volume. No condition present which would. attract or support the breeding of insects or rodents. Damage to frame andlor top slab Comer of frame extends more than'/, inch past curb face into the street (If applicable). Frame Is even with curb. Top slab has holes larger than 2 square Inches or cracks wider than'/, inch. Top slab is free of holes and cracks. Frame not sitting flush on top slab, i.e., separation of more than % inch of the frame from the top slab. Frame is sitting flush on top slab. Cracks in walls or bottom Cracks wider than'/s inch and longer than 3 feet, any evidence of soil particles entering catch basin through cracks, or maintenance person judges that catch basin Is unsound. Catch basin is seated and structurally sound. Cracks wider than % Inch and longer than 1 foot at the joint of any intelloulle! pipe or any evidence of soil particles entering catch basin through cracks. No cracks more than'/, inch wide at the joint of inletloutlet pipe. Settlemenl/. misalignment Catch basin has settled more than 1 inch or has rotated more than 2 inches out of alignment. Basin replaced or repaired to design standards. Damaged pipe joints Cracks wider than at the joint of the inletloutlet pipes or any evidence of soil entering the catch basin at the joint of the inletloutlet No cracks more than X-inch wide at the joint of Inletloutlet pipes, pipes. Contaminants and pollution Any evidence of contaminants or pollution such as oil, gasoline, concrete slurries or paint. Materials removed and disposed of according to applicable regulations. Source control OMPs implemented if appropriate. No contaminants present other than a surface oil film. Inletl0utlet Pipe Sediment accumulation Sediment filling 20% or more of the pipe. Inlet/outlet pipes clear of sediment. Trash and debris Trash and debris accumulated in inlet/outlet pipes (includes floatables and non-floatables). E No trash or debris in pipes, Damaged Cracks wider than %-inch at the joint of the inletloutlet pipes or any evidence of soil entering at the joints of the inletloutlet pipes. No cracks more than X-inch wide at the joint of the inletloutlet pipe. Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-10 of 17 Record Date:12/6/2018 9:55 AM King County, WA 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 716 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 Coverllid not in place CoverRfd is missing or only partially in place. Coverllid 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 coverlitd does not work. Coverllid 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. Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-11 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO. S - CONVEYANCE PIPES AND DITCHES Maintenance Defector Problem Condlfions 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. Vegetatlon/roots Vegetation/roots that reduce free movement of Water Rows 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 of Pipe repaired or replaced. pipe by more than 20% or is determined to have weakened structural integrity of the pipe. Ditches Trash and debris Trash and debris exceeds t cubic fool 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/ftushed 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 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 tows 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. Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-12 of 17 Record Date:12/6/2018 9:55 AM King County, WA 3Y DISSIPATERS Defect or Problem Conditions When Maintenance is Needed Results Expected When Maintenance is Performed. Trash and debris Trash and/or debris accumulation. Dissipater clear of trash and/or debris. Contaminants and pollution Any evidence of contaminants or pollution such Materials removed and disposed of as oil, gasoline, concrete slurries or paint. according to applicable regulations. Source control SMPs implemented if appropriate. No contaminants present other than a surface oil film. Missing or moved Rock Only one layer of rock exists above native soil In area five square feet or larger or any exposure of native soil. Rock pad prevents erosion. Pipe plugged with sediment Accumulated sediment that exceeds 20% of the Pipe cleanedlflushed so that it design depth. matches design. Not discharging water Visual evidence of water discharging at Water discharges from feature by properly concentrated points along trench (normal condition is a "sheet flout' of water along trench). sheet flow. Perforations plugged. Over 1/4 of perforations in pipe are plugged with debris or sediment. Perforations freely discharge flow. Water flows out top of "distributor" Water flows out of distributor catch basin during No flow discharges from distributor catch basin. any storm less than the design storm. catch basin. Receiving area over- saturated Water in receiving area is causing or has potential of causing landslide problems. No clanger of landslides. Damaged mesh Mesh of gabion broken, twisted or deformed so structure is weakened or rock may fall out. Mesh is intact, no rock missing. Corrosion Gabion mesh shows corrosion through more than %. All gabion mesh capable of of its gage. containing rock and retaining designed form. Collapsed or baskets Gablon basket shape deformed due to any All gabioEbaskets t, structuredeformed cause. stands aMissing rock Any rock missing that could cause gabion to loose structural integrity. No rock Warn or damaged post, baffles or side of chamber Structure dissipating flow deteriorates to %t or original size or any concentrated wom spot exceeding one square foot which would make Structure is in no danger of failing. Damage to wall, frame, bottom, structure unsound. Cracks wider fhan'/xinch or any evidence of soil entering the structure through cracks, Manhole/chamber is sealed and and/or fop slab or maintenance inspection personnel determines that the structure is not structurally sound. structurally sound. Damaged pipe joints Cracks wider than K-Inch at the joint of the inlet/outlet pipes or any evidence No sot[ or water enters and no wafer of soil entering the structure at the joint of the Inlet/outlet pipes. discharges at the joint of inletloullet pipes. Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-13 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO. S - FENCING Maintenance Component Defect or Problem Conditions When Maintenance is Needed . Results Expected When 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 and Cross Members Missing or damaged Missing or broken boards, post out of plumb by No gaps on fence due to missing or pads more than 6 inches or cross members broken broken boards, post plumb to within 1 % inches, cross members sound. Weakened by rotting Any part showing structural deterioration due to Ali 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, (tails and Fabric Damaged parts Post out of plumb more than 5 Inches. Post plumb to within 1 % inches. Top rails bent more than 6 inches. Top rail free of bends greater than 1 inch. Any part of fence (inc;uding post, top rails, and Fence is aligned and meets design fabric) more than 1 foot out of design alignment. standards. Missing or loose tension Wre. Tension wire in place and holding fabric, Deteriorated paint or Part or parts that have a rusting or scaling Structurally adequate posts or parts protective coating condition that has affected structural adequacy. with a uniform proteclive 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_ Instrument Number: 20181206000177 Document:COV Rec: $115.00 Page-14 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO.10 - GATESIBOLLARDSIACCESS BARRIERS Maintenance Component Defect or Problem Conditions When Maintenance is Needed Results Expected When Maintenance is Performed Chain Link Fencing Gate Damaged or missing Missing gate. Gates in place. members Broken or missing hinges such that gate cannot Hinges intact and lubed. Gate €s 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 1 foot out of design alignment. Missing stretcher bar, stretcher bands, and ties. Siretcher bar, bands, and ties in place. Locking mechanism does not lock gate Locking device missing, no -functioning or does not link to all Locking mechanists prevents parts. opening of gate. 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. Bar Gate Damaged or missing Cross bar does not sWng open or closed, 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. Lacking mechanism Looking device missing; no -functioning ordoes Lacking mechanism prevents does not lock date not link to all parts. • opening of gate. Support post damaged Support post does not hold cross bar up. Cross bar held up preventing vehicle access into facility. Boltards Damaged or missing Bollard broken, missing, does not fit into support No access for motorized vehicles to 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 access. get into facility. Circumvented Motorized vehicles going around or between No access for motorized vehicles to boulders. get into facility. Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-15 of 17 Record Date:12/6/2018 9:55 AM King County, WA NO.11 -GROUNDS (LANDSCAPING) Maintenance Component Defect or Problem Condltlons When Maintenance is Needed Results Expected When 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 arborlst roust 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 or the roots. diseased trees removed. Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-16 of 17 Record Date:12/6/2018 9:55 AM King County, WA C.2.5,3 MAINTENANCE INSTRUCTIONS FOR A RAIN GARDEN If the rain garden flow control BMP is proposed for a project, the following maintenance and operation instructions must be recorded as an attachment to the required declaration of covenant and grant of easement per Requirement 3 of Section C.1.3.3 (p. C-18). The intent of these instructions is to explain to future property owners, the purpose of the BMP and how it must be maintained and operated. These instructions are intended to be a minimum; DDES may require additional instructions based on site - specific conditions. Also, as the County gains more experience with the maintenance and operation of these 13MPs, future updates to the instructions will be posted on King County's Surface Water Design Manual website. © TEXT OF INSTRUCTIONS Your property contains a stormwater management flow control BMP (best management practice) called a "rain garden," which was installed to mitigate the stormwater quanfity and quality impacts of some or all of the impervious or non-native pervious surfaces on your property. Rain gardens, also known as "bioretention," are vegetated closed depressions or ponds that retain and filter stormwater from an area of impervious surface or non-native pervious surface. The soil in the rain garden has been enhanced to encourage and support vigorous plant growth that serves to filter the water and sustain infiltration capacity. Depending on soil conditions, rain gardens may have water in them throughout the wet season and may overflow during major storm events. The size, placement, and design of the rain garden as depicted by the flow control BMP site plan and design details must be maintained and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. Plant materials may be changed to suit tastes, but chemical fertilizers and pesticides must not be used. Mulch may be added and additional compost should be worked into the soil over time. Rain gardens must be inspected annually for physical defects. After major storm events, the system should be checked to see that the overflow system is working properly. if erosion channels or bare spots are evident, they should be stabilized with soil, plant material, mulch, or landscape rock. A supplemental watering program may be needed the first year to ensure the long-term survival of the rain garden's vegetation. Vegetation should be maintained as follows: 1) replace all dead vegetation as soon as possible; 2) remove fallen leaves and debris as needed; 3) remove all noxious vegetation when discovered; 4) manually weed without herbicides or pesticides; 5) during drought conditions, use mulch to prevent excess solar damage and water loss. Instrument Number: 20181206000177 Document:COV Rec: S115.00 Page-17 of 17 Record Date:12/6/2018 9:55 AM King County, WA C.2,6.7 MAINTENANCE INSTRUCTIONS FOR PERMEABLE PAVEMENT If the permeable pavement flow control BMP is proposed for a project, the following maintenance and operation instructions, plus any provided by the manufacturer or installer, must be recorded as an attachment to the required declaration of covenant and grant of easement per Requirement 3 of Section C.1.3.3 (p. C-I8)..The intent of these instructions is to explain to future property owners, the purpose of the BMP and how it trust be maintained and operated. These instructions are intended to be a minimum; DDES may require additional instructions based on site -specific conditions or manufacturer's recommendations. Also, as the County gains more experience with the maintenance and operation of these BMPs, future updates to these instructions will be posted on King County's Sui face Water Design Manual website. 0 TEXT OF INSTRUCTIONS FOR NON -VEGETATED PERMEABLE PAVEMENT Your property contains a stormwater management flow control BMP (best management practice) called "permeable pavement," which was installed to minimize the stormwater quantity and quality impacts of some or a]I of the paved surfaces on your property. Permeable pavements reduce the amount of rainfall that becomes runoff by allowing waterto seep through the pavement into a free -draining gravel or sand bed, where it can be infiltrated into the ground. The type(s) of permeable pavement used on your property is: ❑ porous concrete, D porous asphaltic concrete, CI permeable pavers, ❑ modular grid pavement. The area covered by permeable pavement as depicted by the flow control BMP site plan and design details must be maintained as permeable pavement and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. Permeable pavements must be inspected after one major storm each year to make sure it is working properly. Prolonged ponding or standing water on the pavement surface is a sign that the system is defective and may need to be replaced. If this occurs, contact the pavement installer or the King County Water and Land Resources Division for further instructions. A typical permeable pavement system has a life expectancy of approximately 25-years. To help extend the useful life of the system, the surface of the permeable pavement should be kept clean and free of leaves, debris, and sediment through regular sweeping or vacuum sweeping. The owner is responsible for the repair of all ruts, deformation, and/or broken paving units. © TEXT OF INSTRUCTIONS FOR VEGETATED PERMEABLE PAVEMENT Your properly contains a stormwater management flow control BMP (best management practice) called "grassed modular grid pavement," which was installed to minimize the stormwater quantity and quality impacts of some or all of the paved surfaces on your property. Grassed modular grid pavement has the runoff characteristics of a lawn while providing the weight -bearing capacity of concrete pavement. The grassed surface not only minimizes runoff quantity, it helps to filter pollutants generating by vehicular use of the surface. The composition and area of grassed modular grid pavement as depicted by the flow control BMP site plan and design details must be maintained and may not be changed without written approval either from the King County Water and Land Resources Division or through a future development permit from King County. Grassed modular grid pavement must be inspected after one major storm each year to make sure it is working, properly. Prolonged ponding or standing water on the pavement surface is a sign that the system defective and may need to be replaced. If this occurs, contact the pavement installer or the King County Water and Land Resources Division for further instructions. The grassed surface of the pavement must be regularly mowed and maintained in a good condition. Bare spots must be replanted in the spring or fall.