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HomeMy WebLinkAboutWINCO FOODS, LLC AND COB Return Address City Clerk City of Bremerton 345 6` Street, Suite 600 Bremerton, WA 98337 -- f 20120 4250162 — -- CITY OF Page 1 of 5 BREMERTON e 66 00 p4125m2012 02 0 PM Walter Washington, 1(1tsaP Co Auditor I l l l l l l l l l 11 1 1 1 1 11 1 1 1 1 1 1 1 1 1 111 1 1 1 ill l l l l l l l l l l l l l l l l l 111 IIIIIIIIIIIIIIIIIIIIIIIIIIII ____ - AUDITOR/RECORDER'S INDEXING FORM Document Title(s) 1 Agreement to Maintain Stormwater Facilities and Implement a Pollution Source Control Plan Reference Number(s) of Documents assigned or released Grantor(s) 1 City of Bremerton and WmCo Foods, LLC E Additional names on page of document Grantee(s) 1 ❑ Additional names on page of document Legal Description Lt 22, Plat of Bay Vista, Phase II, according to Plat Recorded in Vol 33 of Plats, at Pages (abbreviated) 74 -90, Kitsap, Washington 11 1 Additional legal is on page 2 of document Assessor's Property Tax Parcel/Account Number 5580- 000 - 022 -0001 i AGREEMENT TO MAINTAIN STORMWATER FACILITIES AND TO IMPLEMENT A POLLUTION SOURCE CONTROL PLAN BY AND BETWEEN THE CITY OF BREMERTON AND WINCO FOODS LLC This agreement is entered into on the date fully executed below by and between City of Bremerton, hereinafter "City" and WmCo Foods, LLC , hereinafter "Owner " The upkeep and maintenance of stormwater facilities and the implementation of pollution source control best management practices (BMPs) is essential to the protection of water resources All property owners are expected to conduct business in a manner that promotes environmental protection This Agreement contains specific provisions with respect to maintenance of stormwater facilities and use of pollution source control BMPs The authority to require maintenance and pollution source control is provided by ordinance A LEGAL DESCRIPTION LOT 22 OF PLAT OF BAY VISTA — PHASE 2, ACCORDING TO PLAT RECORDED IN VOLUME 33 OF PLATS AT PAGES 74 THROUGH 90, IN KITSAP COUNTY, WASHINGTON. Whereas, Owner has constructed improvements, including but not limited to, buildings, pavement, and private stormwater facilities servicing Owner's property on the property described above In order to further the goals of the City to ensure the protection and enhancement of City's water resources, the City and Owner hereby enter into this Agreement The responsibilities of each party to this Agreement are identified below B OWNER SHALL (1) Implement the stormwater facility maintenance program included herein as Appendix "A" for Owner's private stormwater facilities servicing Owner's property (2) Maintain a record (in the form of a log book) of steps taken to implement the programs referenced in Section (B)(1) above The log book shall be available for inspection by City staff at Owner's business during normal business hours The log book shall catalog the action taken, who took it, when it was done, how it was done, and any problems encountered or follow -on actions recommended Maintenance items ( "problems ") listed in Appendix "A" shall be inspected on a monthly or more frequent basis as necessary Owner is encouraged to photocopy the individual checklists in Appendix A and use them to complete its monthly inspections These completed checklists would then, in combination, comprise the monthly log book (3) Submit an annual report to the City regarding implementation of the programs referenced in (1) above The report must be submitted on or before May 15 of each calendar year and shall contain, at a minimum, the following (a) Name, address, and telephone number of the business, the person, or the firm responsible for plan implementation, and the person completing the report (b) Time period covered by the report (c) A chronological summary of activities conducted to implement the programs referenced in (1) above A photocopy of the applicable sections of the log book, with any additional explanation needed, shall normally suffice For any activities conducted by paid parties not affiliated with Owner, include a copy of the invoice for services (d) An outline of planned activities for the next year C THE CITY WILL, AS RESOURCES ALLOW (1) Provide technical assistance to Owner in support of its operation and maintenance activities conducted pursuant to its maintenance and source control programs Said assistance shall be provided upon request and at no charge to Owner (2) Review the annual report and conduct occasional site visits to discuss performance and problems with Owner (3) Review this agreement with Owner and modify it as necessary D REMEDIES (1) If the City determines that maintenance or repair work is required to be done to the private stormwater facilities existing on and servicing the Owner property, the City's Stormwater Administrator shall give Owner written notice of the specific maintenance and/or repair required and the timeframe for completion of such repairs The Administrator shall set a reasonable time in which such work is to be completed by Owner If the above required maintenance and/or repair is not completed within the time set, written notice will be sent to the persons who were given notice stating the City's intention to perform such maintenance and bill Owner for all incurred expenses The City may also adjust stormwater utility charges on the Owner's bill if required maintenance is not performed (2) If at any time the City determines that the existing private stormwater system servicing Owner's property creates any imminent threat to public health or welfare, the Administrator may take immediate measures to remedy said threat No notice pursuant to Subsection (D)(3), below, shall be required under such circumstances, provided, that, the City shall take reasonable steps to immediately notify Owner of such emergency condition and work required to remedy such emergency and the location and schedule for completion of such work (3) The Owner grants authority to the City for access to any and all private stormwater system features for the purpose of inspection, and performing maintenance or repair as may become necessary under Subsection (D)(1) above Prior to entering or conducting work on Owner's property the City shall give Owner prior notice of such work to the Manager or Assistant Manager on site or written notice. Prior to beginning work or immediately thereafter, the City shall make available to Owner a written description of the specific entry and work to be performed and the schedule for completion of such work Owner's contact information is WmCo Foods Store #105, Attn Manager and Assistant Manager, Telephone (360) 479 -0139, E- mail manager 105 @ wincofoods corn and asstmgr105 @wmcofoods com Owner and the City shall also use commercially reasonable efforts to coordinate scheduling of the City's entry and work to minimize interference with the use of Owner's property (4) The Owner, shall assume all responsibility for the cost of any maintenance and for repairs to the stormwater facilities incurred in accordance with Subsection (D)(1) above Such responsibility shall include reimbursement to the City within 30 days of Owner's receipt of the invoice for any such work performed Overdue payments will require payment of interest at the current legal rate for liquidated judgments If legal action ensues, any costs or fees incurred by the City will be borne by the parties responsible for said reimbursements This Agreement is intended to protect the value and desirability of the real property described above and to benefit all the citizens of the City It shall run with the land and be binding on all parties having or acquiring from Owner or their successors any right, title, or interest in the property or any part thereof, as well as their title, or interest in the property or any part thereof, as well as their heirs, successors, and assigns They shall inure to the benefit of each present or future successor in interest of said property or any part thereof, or interest therein, and to the benefit of all citizens of the City Dated at ®1 , Idaho, this day of ' 2012 WINCO FOODS, LLC B Authorized gent or Owner STATE OF IDAHO ) ss COUNTY OF ADA ) On this day and year above personally appeared before me, a Notary Public in and for the State of Idaho duly commissioned and sworn, personally appeared PA. 4)-u1Liif— , to me known to be the Lt 'F of lll 1 NCv VDt bS a LL4 and acknowledge the said instrument to be the free and voluntary act and deed of said corporation, for the uses and purposes therein mentioned, and on oath stated that " - is authorized to execute the said instrument and that the seal affixed is the corporate seal of said corporation WITNESS my hand and official seal I ay year first ab written .• RSA C. •. .•'• �►S? '""• d •'•. • N blic m an or t o State of r �' F . • 40TaRl� •� Idaho, residing in My Commission Expire p O B 1. •,•• OF V �`��,,•• •••••.•••••••••• o ' Dated at Bremerton, Washington, this 23 gp day of A P/Z/ L 2012 CITY OF BREMERTON By Ma tty Lent STATE OF WASHINGTON ) ) ss COUNTY OF KITSAP ) On this day and year above personally appeared before me, Patty Lent, to me known to be acting as Authorized Agent for the City of Bremerton, a Municipal Corporation, who executed the foregoing instrument and acknowledged the said instrument to be the free and voluntary act and deed of said Municipal Corporation for the uses and purposes therein mentioned and on oath states he is authorized to execute the said instrument Given under my hand and official seal this day of 1 , 2012 ` � ` ��1111110/I �•• Notary Public in and for thq State o _ Washington, residing in 0 UQ My Commission Expires ti O .�� ?OIN CC�� APPROVED AS TO FORM R ger A Lubovich, City At RECEIVED FOR FILING Sh L Corm, Intenm y Clerk APPENDIX A STORMWATER FACILITY MAINTENANCE PROGRAM Introduction What is Stormwater Runoff? When urban and suburban development covers the land with buildings, houses, streets and parking lots„ much of the native topsoil, duff, trees, shrubs, and grass are replaced by asphalt and concrete. Rainfall that would have directly soaked into the ground Instead stays on the surface as slormsvraterivaoffmaking its way into storm drains (including man -made pipes, ditches, or Swale networks), stormwater ponds, surface and groundwater, and eventually to Puget Sound. What is a Storm Drain System and how does it work? The storm drain system for most developments includes components that carry, sloe, dean and Amb3se the stormwater. These components work together to reduce the impact's of development on the environment. These impacts can include flood/ng which results in property damage and blocked emergency routes,_ awkn which can cause damage to salmon spawning habitat, and polluMan which harms fish and /or drinking water supplies. The storm drain system provides a safe method to carry stormwaber to the treatment and storage areas. Swales and ponds filter pollutants from the stormwater by physrca /tysettling out particles, dWw1ea//ybinding pollutants to pond sediments, and b/o%g /ca/lyconverting pollutants to less- harmful compounds. The ponds also store the treated water, releasing It gradually to a nearby stream or to groundwater. The various components of storm drain systems are described in the glossary. i What does Stormwater Runoff have to do with Water Quality? Stormwater runoff needs to be treated because it carries litter, oil, gasoline, fertilizers, pesticides, pet wastes, sediments, and anything else that can float, dissolve, or be swept along by the moving water. Left untreated, polluted stormwater can reach nearby waterways where it can harm and even kill aquatic life. It can also pollute groundwater to the extent that it must be treated before it can be used for drinking, which has actually happened In Pierce County. Nationally, stormwater Is recognized as a major threat to water quality. Remember to keep everything out of stormwater systems except the rainwater they are designed to collect Your Stormwater Facility Stormwater facilities can be attractive as well as functional. They can provide both active and Passive-use recreation areas and open space for wildlife. Perhaps you've noticed a wet or dry pond in your neighborhood. These different types of ponds are designed for ddferent purposes. For example, wet ponds primarily provide treatment of stormwater. They also provide good cover and habitat for birds and small mammals, making them fine "wildlife preserves ". Dry ponds or infiltration ponds are designed to provide storage for stormwater and gradually release It downstream or allow it to filter into the ground. These types of ponds can be maintained as grassy play areas, and may even be modified to house more formal play equipment. Who is Responsible for Maintaining Stormwater Facilities? f All stormwater facilities need to be maintained. Regular maintenance ensures proper functioning and keeps the facility vlsuaily appealing. This Stormwater Facility Maintenance Guide was designed to help explain how stormwater facilities work and provide user- friendly, straightforward guidance on how to maintain them. As a homeowner or homeowner's association, you are responsible for regularly maintaining privately owned ponds, catch basins, pipes and other drainage facilities within your subdivision. Local governments maintain stormwater facilities located In public right -of -ways. Maintenance Checklists The maintenance checklists in this packet are for you to use when checking the stormwater facilities In your neighborhood. If you feel that you are missing a checklist, or you have additional facilities not identified or addressed in this packet, please contact your developer or local jurisdiction. The checklists are in table format for ease of use and brevity. Each checklist tells you what part of the feature to check, how often to check, what to check for, and what to do about It. Log sheets are included to help you keep track of when you last surveyed the storm drainage system. Those systems using approved oemerging technologies", such as a StormFilterT", may not find a checklist covering the specific stormwater facility. Please refer to the manufacturer's guidelines for the appropriate maintenance activity schedule. If a checklist is provided, it Is for guidance purposes only and not meant to supercede the manufacturees recommendations. Although it is not intended for the maintenance survey to involve anything too difficult or strenuous, there are a few tools that will make the job easier and safer. These tools include: • A flashlight. • A long pole or broom handle. • Some kind of pry bar or lifting tool for pulling manhole and grate covers, • Goves. A listing of resources Is also included within this packet. Here you will find the phone numbers of the agencies referred to in the tables. 54aW WARNING Due to OSHA regulations, you should never stick your head or any part of your body into a manhole or other type of confined space. When looking Into a manhole or catch basin, stand above it and use the flashlight to help you see. Use a pole or broom handle that is long enough when you are checking sediment depths in confined spaces. NO PART OF YOUR BODY ,SHOULD BREAK THE PLANE OF THE OPEN HOLE. Resource Listing If you are unsure whether a problem exists, please contact the local jurisdiction at the number below and ask for technical assistance with your situation. Other resources are listed for your convenience and as references associated with the checklists. CITY OF BREMERTON 360.473.5318 Checklist instructions The following pages contain maintenance checklists covering most of the needs for the components of your drainage system, as well as for some components that you may not have. Let us know If there are any components missing from these pages. Ignore the requirements that are not part of your system. You should plan to complete a check for all system components on the following schedule: 1. Quarterly — plan to inspect the facility at least once during the following months — January, May, August, and November. 2. Annually — The best time for an annual inspection is in the late summer, preferably September. 3. Items marked "After Major Storm Event", use 1 -inch in 24 hours as a guideline. Using photocopies of these checklists and log sheet below, check off the problems that you look for each time you do an inspection. Add comments on problems found and actions taken on the log sheet. Keep the completed forms in your files for future reference. Call one of the numbers listed above for technical guidance. Please do not hesitate to call, especially if you are unsure whether a situation you have discovered may be a problem. Log Sheet Use copies of this log sheet to keep track of when maintenance checlas occur and what items, if any, are repaired or altered. The completed sheets will serve as a record of past maintenance activitles and will provide valuable information an how your facilities are operating. This information will be useful for future requirements regarding the types of facilities that am installed It helps to keep all log sheets in a designated area so that others can easily access them. [Addrmi e Checked: cked By: tton: CKV: Zt�lne dumber Abit oll�d /Rv A1&W=Alfg= ARMAMON MfOff ' JUN i 1 E Catch Basins and Inlets These structures are typically located In the streets and public right of -ways. The City is responsible for routine maintenance of the pipes and catch basins in the right -of -ways, while the homeowners association is responsible for keeping the grates dear of debris in all areas as well as pipes and catch basins in private areas. l f -Pent of How` ' i Compteba r - Stn ,Aliw To d Problem Conditions to Check For What to do Ch eck _ Olb - Data During Trash or debris accumulating m Grate and After Trash & front of the etch basin opening and Remove blocking trash or debris Major Debris g with a rake and dean off the grate. Storms I not allowing waters to flow in. Vegetation is growing across and Grate Quarterly Vegetation blocking more than 10°x6 of the Remove vegetation. basin opening. Sediment or debris in the basin should be kept under 50% of the Catch Basin Quarterly Sediments depth from the bottom of the pipe Clean out the catch basin of to the bottom of the basin. Use a sediment and debris. long stick or broom handle to poke Into sediment and determine d epth . Trash or debris in the pipes should Inlet and Quarterly Trash & not be more than 1/5 of its helght. Clean out the inlet and outlet pipes Outlet Pifer Debris Also there should not be any roots from trash, debris, or vegetation. or tlon growing in the epes. There should be no cracks wider Inlet and than 0 5" and longer than 1 foot at Repair cracks or replace the joints. i Structural the Outlet Pipes Annually joint of any Inlet or outlet pipe. Joints Damage Also, check for evidence of Contact the City for technical sediment entering the catch basin guidance. throw h the cracks. The grate should not have any Structural cracks longer than 2" There should Grate Quarterly Damage not be multiple cracks. There Replace the grate should be no opening wider than 718" Ensure that the frame is sitting Structural flush on top of the concrete Frame Quarterly Damage structure (slab). A separation of Rep replace the frame so that more than 3/4" between the frame it k flush with the slab. and the slab should be corrected. Inspect the walls of the catch basin for cracks wider than 0.5" and Structural longer than 3 feet. Also check for Repair or replace the basin. Catch Basin Annually Damage evidence of sediment entering the Contact a professional engineer for catch basin through the cracks. evaluation. Determine whether or not the structure is sound There should be no chemicals such Clean out catch basin. Contact Pollution as natural gas, oil, and gasoline In Catch Basin Quarterly and Fire the catch basin. Chedc for Thurston County Environmental Hazard obnoxious color, odor, or oily Health if You detect a color, odor, sludge. or oily sludge. Remove catch basin cover and skim Oil/water off oil layer. Pour oil into Separator Water surface in catch basin has disposable container, seal (down -tumed significant sludge, oil, grease, or container, wrap securely in elbow or "T" Quaff Pollution scum layer covering all or most of newspaper, and contact Thurston In catch the water surface. County Environmental Health for basin) proper disposal methods. Water surface should be clear of oily layer. Top or bottoms of pipe appear to Remove the catch basin lid and Structural have broken off Check for any examine the pipe for damage. If Pipe Elbow Quarterly Damage a , re a contractor to replace ag apparent damage and check to see broken hi if it's plumb. pipe in accordance to approved stem desl n. � Ladder is unsafe due to missing Ladder rungs, not securely attached to (if applicable) Annually Unsafe ba sin wall, misalignment, rust, Replace ladder. cracks, or sharp edges. Some catch basins have covers. In Sit cover properly or replace if this case, check to make sure that necessary. If difficult to remove, Catch Basin Structural the cover is properly placed, not tap a few rimes with a heavy Cover Annually Damage dill cult to remove using normal sledgehammer to open and then mechanism I ch anism (if applicable) is pressure, and the locking clean lip edges. Replace locking mechanism If necessary functionin ro er Comments: Conveyance Pipes, Ditches, and Swales ftft � HOW Completed TO Cheek Ofban . (pate /By) pr' Condldons to Check For What to do Accumulated sediment should not exceed 20% of the diameter of the Pipe. Vegetation should not reduce Sediment, free movement of water through Clean out pipes of all sediment and Pipes Annually Debris, & pipes. Ensure that the protective debris. Remove all vegetation so Vegetation coating Is not damaged or rusted that water flows freely through Dents should not significantly pipes Repair or replace pipe. Impede flow. Pipe should not have major cracks or tears allowing water to leak out. Open Quarter ly Trash & There should not be any yard Remove trash and debris and Ditches Debris waste or litter in the ditch, dispose of them pro perly. Open Annually Accumulated sediment should not Clean out ditch of all sediment and Ditches y Buildup exceed 20°x6 of the depth of the ditch. debris. Open Overgrowth Check for vegetation (e.g., weedy Clear blocking vegetation so that Ditches and Annually of shrubs or saplings) that reduces water moves freely through the Swales Vegetation the free movement of water ditches. Grassy vegetation should through ditches or swales. be left alone. Check around inlets, outlets, and Eliminate poses of erosion. Open Swale bottoms for signs of erosion. Stabilize slopes by using the Erosion / Check slopes for signs of sloughing Ditches and Quarterly or settling. Action is needed where appropriate erosion control Swales Scouring eroded damage Is over 2" deep and procedure (e.g., reinforce with where there is potential for rock, plant grass, and compact continued erosion soil). Open Native soil beneath the rocks lash Ditches and Annually Rocks pad, check dam, or lining should Replace rocks to design standard Swales not be visible Aerate soils and re -seed and mulch Grass cover Is sparse and weedy, bare areas. Keep grass less than Swales Quarterly Vegetation or areas are overgrown with woody 8" high. Remove woody growth, vegetation. Overhanging limbs are re- contour, and re-seed as shading out the grass. necessary Trim back overhanging limbs to allow for more light. If possible, speak with the Homeowner Swale has been fliied In or blocked homeowner and request that the Swales Quarterly Conversion by shed, woodpile, shrubbery, etc. Swale area be restored. Contact the City to report the problem if not rectified voluntarily. A survey may be needed to chedc Swale does Water stands In the Swale or flow grades. Grades need to be in 1 - 5% Swales Annually not drain velocity is very slow. Stagnation range of possible. If grade Is less occurs. than 1%, under - drains may need to be metalled. Comments: Control Structures and Flow Restrlctors These types of structures are usually placed out of sight in manholes that could be locked. They typically consist of two pipes, one placed above the other. The lower pipe will typically have a cover and a small hole drilled in it to allow for slow release of water. The upper pipe is usually larger to provide for emergency overflows. Part of Co How mpleted Structure Raw P (bate /fay) Problem Conditions to Check For What to do To duck Often Trash, Check to see if trash or debris Is Debris & blocking orifice plate. There Orifice emove trash and debris and fice quarterly Sediment should be enough space to get the Buildup orifice plate open for dispose of properly. maintenance. Open the manhole lid but do not put your head down It You may need to use a flashlight in order to see down the manhole While Structural standing above the opening, check If you observe any of the preceding Outlet Pipe Annually Damage to see that the pipe Is securely conditions, call the City for attached to the manhole wall technical guidance. This "T" type pipe should be in an upright position. Check for rust holes that don't seem part of the design. Ensure that the cleanout gate is in place, watertight, and free of rust. You should be able to open the If you observe any of the preceding Cleanout Quarterly gate alone Make sure the pull conditions or can't get the cleanout Gate Damage chain leading to the gate Is Intact gate open, call the City for and within reach. Check for trash, technical guidance. debris, sediment, or vegetation that Is blocking the plate. Use a long- handled rake or Overflow Trash, debris, sediment, or pitchfork to remove all such Pipe Quarterly Obstructions vegetation should not be blocking obstructions. If you can't get the the overflow pipe. debris cleared, contact the City for Comments: technical guidance. Closed Detention Systems (Pipes, Tanks, & Vaults) These types of structures are usually underground and are accessed by some kind of manhole. Part of How Completed Structure To Of Een (Date /By) Problem CondHlors to Check For What to do Check Plugged Air A plugged vent can cause the Air Vent m t Vent (small pipe Clean out the vents so that Storage Pipe Annually Vent connects ensure area to collapse. Check t0 they are free from debris or Tank catch basin to ensure that the end area of vents and sediment storage pipe) is free from debris and sediment. Too much sediment should not Storage Pipe Debns and accumulate In the bottom of the Remove all sediment and or Tank Annually Sediment pipe or tank. If the pipe or tank is debris from the storage more than 1/4 full of sediment, it area. should be cleaned. Joints between Check for cracks in the tank or Storage Pipe Annual) pipe wall or joints in the facility Seal all joints and cracks Tank y tank/pipe f between tank and pipe section that would allow matenal to leak sections into the facilltv. Repair or replace the tank or Look and see if an part of the pipe. You will either need to Sto oraTankpe Annually Structural tank or pipe is noticeably bent out coact a professional damage of shape. engineer for evaluation or call the Qty for technical g uidance. Check to ensure that all manhole If a cover is only partially in Manhole Quay Missmg/Unsafe covers are securely in place. Some place, try and slide it into a Cover Manhole covers covers have locking bolts that may secure position. If a cover is need to be unscrewed. missing, replace it with a new one Ensure that the ladder along the manhole wall Is safe and that there are no missing rungs, Contact the City for technical Manhole Annually Unsafe Ladder misalignment, rust, or cracks. To do this without entering the guidance. manhole, you may creed a Comments: flashlight. f Grounds and Landscaping Part of Structure NOW completed Problem Conditions to Check For To Check Often (Date /By) What In do Landscaped Areas Quarterly Weeds Weeds growing out of control in Pull weeds by hand, if landscaped area. possible, to avoid using chemical weed controls. Poisonous Check for any presence of poison Remove any vegetation or Landscaped Areas Quarterly Plants & Ivy or any other poisonous Insect nests that are present Insects vegetation or insect nests. in landscaped areas. p Q� There should not be any litter or Remove and dispose of Landscaped Areas Quarterly Utter yard waste in the landscaped properly. areas. Identify the cause of erosion Landscaped Areas Quarterly Erosion Noticeable rills are seen in the and take steps to slow down landscaped areas. or disperse the water. Fill In contour and re -seed the area. Trim trees and shrubs to Trees & Shrubs Annually Damaged Limbs or parts of trees or shrubs restore shape Replace Trees that are split or broken. severely damaged trees and shrubs. Replant trees or shrubs, Trees & Shrubs Annually Damaged Trees and shrubs that have been inspecting for injury to stem Trees blown down or knocked over. and roots. Replace d necessa . Trees and shrubs which are not Place stakes and rubber Trees & Shrubs Annually Damaged adequately supported or are coated around Trees leaning over, causing exposure young of the roots. trees/shrubs for support Comments: 1 PERVIOUS CONCRETE 4 Operations & Maintenance Requirements This section describes steps to ensure efficient operation of this facility, types of maintenance required, required maintenance frequency and period; details of maintenance plan/contract agreement to provide maintenance; any performance measurement techniques Maintenance of Pervious Paving Basic maintenance requirements for pervious paving • Annual vacuuming; • Twice yearly sweeping, • Monthly inspection for sedimentation and clogging, • Annual infiltration test (See Sod Infiltration Testing in Appendix E), • Bi- Annual pressure washing. Additional Guidance I • Small areas of pervious concrete surface can be repaired with standard concrete without significantly affecting overall permeability of a system; pervious area is enough to compensate. • Small areas of pervious paving on single - family lots probably do not need maintenance because there is not enough sediment loading to justify the time However, adjacent, unmaintained landscaping can contribute to sediment toad. • Pervious paving at frequent turning areas by larger vehicles can wear faster than other locations. Provide appropriate design for long -term durability • Pervious concrete has an initial infiltration rate - 100 to 1000 times more than the underlying soil Therefore, it can continue to perform well even when partially clogged • Develop a maintenance manual that includes performance and construction specifications to help achieve quality assurance. • Consider consolidating bioretention and other LID practices to improve maintenance access and reduce travel. i JELLYFISH FILTER SYSTEM i I ,f 1 • � � of Jellyfish brio Imbrium Systems Jellyfish® Filter Inspection and Maintenance Information Jellyfish® Filter Inspection and Maintenance Regular inspection and maintenance are proven, cost - effective ways to maximize water resource protection for all stormwater pollution control practices, and are required to insure proper functioning of the Jellyfish Filter. Inspection of the Jellyfish Filter is easily performed from the surface, while proper maintenance requires a combination of procedures conducted from the surface and with worker entry into the structure. The Jellyfish Filter's patent pending technology has no moving parts, keeping the process simple. Please refer to the following information and guidelines before conducting inspection and maintenance activities. When is inspection needed? • Post - construction inspection is required prior to putting the Jellyfish Filter into service. • Routine inspections are recommended during the first year of operation to accurately assess the sediment and floatable pollutant accumulation, and to ensure that the automatic backwash feature is functioning properly. • Inspection frequency in subsequent years is based on the maintenance plan developed in the first year. • Inspections should also be performed immediately after an oil, fuel or other chemical spill. When is maintenance service needed? • For optimum performance, the unit should be cleaned out once the sediment depth reaches 12 inches of accumulation. Generally, the minimum cleaning frequency is once annually, although the frequency can be based on historical inspection results. • Filter cartridges should be cleaned and re- commissioned, or replaced, every 12 months or when the automatic backwash feature no longer functions, whichever occurs first. The automatic backwash function will be disabled if the filter cartridges become saturated with sediment. This saturated condition is indicated if the backwash pool contains more than 3 inches depth of water after 12 or more hours of dry weather have elapsed since the most recent rainfall /runoff event. • The unit should be cleaned out immediately after an oil, fuel or chemical spill. I What conditions can compromise the Jellyfish Filter's performance? • If sediment accumulates beyond 12 inches in depth, filter cartridge life and sediment removal efficiency may be reduced. • if filter cartridges become saturated with sediment, the system may not provide filtration treatment at the designed water quality flow rate, and unfiltered water may bypass the filter cartridges. • If an oil spills) exceeds the oil capacity of the system, subsequent spills may not be captured and may cause fouling of the filter cartridges. • If debris clogs the inlet of the system, removal efficiency of sediment, hydrocarbons, and gross pollutants may be reduced. • If a downstream blockage occurs, a backwater condition may occur in the system and removal efficiency of sediment, hydrocarbons, and gross pollutants may be reduced. What training is required? The Jellyfish Filter is inspected and maintained by professional vacuum cleaning service providers with experience in the maintenance of underground tanks, sewers and catch basins. Since some of the maintenance procedures require manned entry into the Jellyfish structure, only professional maintenance service providers trained in confined space entry procedures should enter the vessel. Service provider companies typically have personnel who are trained and certified in confined space entry procedures according to local, state, and federal standards. For typical inspection and maintenance activities, no specific supplemental training is required for the Jellyfish Filter. Information provided in this document or the Jellyfish Filter Owner's Manual contains sufficient guidance to maintain the system properly. What equipment is typically required for inspection? • Manhole access cover lifting tool • Oil dipstick or sampling tool • Sediment probe • Flashlight • Camera • Data log • Safety cones and caution tape • Hard hat, safety shoes, safety glasses, and chemical- resistant gloves How is the Jellyfish Filter inspected? • The Jellyfish filter system can be inspected from the surface through the standard surface manhole access cover or custom doors. • Sediment and oil depth inspections are performed with a sediment probe and oil dipstick. Sediment and oil depth are measured through the maintenance access wall. • Visual inspection for flootable pollutant accumulation such as litter and hydrocarbons is also performed by shining a flashlight into the maintenance access wall. • Visual inspection of the backwash pool (6 -inch high kidney- shaped or oval - shaped 2 weir) should also be performed to check for standing water in the pool. If at least 12 hours of dry weather have elapsed since the most recent rainfall /runoff event and the backwash pool contains more than 3 inches of water, this condition Indicates that the filter cartridges are saturated with sediment and should be cleaned or replaced. • Inspections also involve a visual inspection of the internal components of the system for obvious damage. What equipment is typically required for mat donanceF • Vacuum truck equipped with water hose and let nozzle s • Small pump and tubing for oil removal, if necessary • Manhole access cover lifting tool • Oil dipstick or sampling tool • Sediment probe • Flashlight • Camera • Data log • Safety cones and caution tape • Hard hats, safety shoes, safety glasses, chemical- resistant gloves, and hearing protection for service providers • Gas analyzer, respiratory gear, and safety harness for specially trained personnel if confined space entry is required • Replacement cartridges are required if manual cleaning and re- commissloning of existing cartridges is not possible or adequate to restore proper system function. • Jellyfish Cartridge Backflush Pipe How is the JoHyhh Filter maintained? • The Jellyfish Filter can be maintained through the standard surface manhole access cover. All access covers should be removed to provide additional light and ventilation. If custom doors were installed instead of frames and covers, open all doors. • If the filter cartridges are to be manually backflushed (see procedure below), perform the manual backflush service prior to vacuum removal of sediment, floatable, and water (i.e. perform the manual Backflush with the lower chamber full of water). • Insert the oil dipstick or sampling tool into the maintenance access wall. If oil is present, pump off the oil layer into separate containment using a small pump and tubing. Some maintenance service providers may elect to use the vacuum hose if the oil amount is small. • Maintenance cleaning of accumulated fioatable litter and sediment is performed with a vacuum hose inserted through the maintenance access wall. • Using the vacuum hose, decant the water from the lower chamber to the sanitary sewer, If permitted by the local regulating authority, or into a separate containment tank. • Remove the sediment from the bottom of the unit using the vacuum hose. • For larger Jellyfish Filters, (8 -ft, 10 -ft, 12 -ft diameter), complete sediment removal 3 may be facilitated by inserting a garden hose sprayer through a hole in the cartridge deck where a blank cartridge lid (no orifice in the cartridge lid) or filter cartridge has been removed. Use the garden hose sprayer to break up sediment on the bottom of vessel that is farthest from the maintenance access wall, being careful not to cut or otherwise damage the filter tentacle membranes with excessive water pressure. ()yg1g: Use of a garden hose sprayer is recommended. Do not use a high pressure jet sprayer or power washer, as excessive water pressure may damage the filter tentacle membranes.) Rinse the loosened sediment toward the maintenance access wall for easy vacuum removal. • To access the cartridge deck for manual cleaning or replacement of filter cartridges, descend the ladder that is built into structure's sidewall, observing all precautions for safe and proper confined space entry. Note that the cartridge deck may be slippery. Care should be taken to avoid stepping directly onto the backwash pool weir, as damage may result. • A manual backflush of the cartridges is recommended to remove a high percentage of accumulated sediment from the filtration tentacles, restore flow capacity, and extend the service life of the cartridges. A Jellyfish Cartridge Backflush Pipe (12 -inch diameter x 40 -inch length aluminum pipe with flapper valve) may be purchased from Imbrium Systems that allows each cartridge to be selectively backwashed using water that is supplied from either (a) the previously decanted water stored in a vactor truck compartment; (b) clean water from a separate water truck delivered to the site; or (c) water from a nearby fire hydrant or other clean water source. NOTE Manual backflushing of the cartridges is best performed with the lower chamber full of water (i.e. prior to vacuuming out the sediment, floatables, and water). This ensures that a uniform backflush pressure is applied across all of the filter media surface area. • Manual back ftuslh procedure Twist the threaded cartridge lid on the cartridge receptacle counter- clockwise to remove the lid and expose the cartridge head. (N-QT—E-. Do not step directly onto an exposed cartridge head when a cartridge lid is removed, as excessive downward force may damage the cartridge receptacle and result in injury if the cartridge head is forced through the receptacle and into the lower chamber.) Place the Jellyfish Cartridge Backflush Pipe over the cartridge receptacle such that the gasket on the bottom of the Backflush Pipe is seated on the rim of the cartridge receptacle. Fill the Backflush Pipe with water (approximately 16 gallons). Pull the cord to open the flapper valve and backflush the water through the cartridge. Refill the Pipe and backflush a second time. The full Pipe contents should drain down to the top of the open flapper valve (30 inches from the top of the Pipe) within approximately 15 seconds to remove a high percentage of accumulated sediment and restore the flow capacity of the cartridge. Remove the Pipe and re- install the lid hand- tight. For the most thorough backflushing, backflush the Draindown Cartridge(s) first, followed by the Hi -Flo Cartridges, then finish with a final single backflush on the Draindown Cartridge(s). (NOTE: The HI -Flo Cartridges are those cartridges within the kidney- shaped 6 -inch high backwash pool weir. The Draindown Cartridges are those cartridges outside the backwash pool weir. See the diagram below for reference.) When backflushing a cartridge, it is important to keep the lids in place on all other cartridges both as a safety precaution and so that water displaced from the lower chamber during backflushing is properly filtered when discharged to the top of the cartridge deck. 4