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2023-023064 ~ 16200 SW Pacfic Hwy Tigard, Oregon 97223
Washington County,Oregon 2023-023064 06/07/2023 09:22:09 AM V D-AE Cnt=1 Stn=30 RECORDS1 $85.00$5.00$11.00$60.00-Total=$161.00 RETURN RECORDED DOCUMENT TO: 1111 1111 1111111111 111111 1111 CITY HALL RECORDS DEPARTMENT CITY OF TIGARD 02946531202300230640170170 I•Joe Nelson,Director of Assessment and Taxation 13125 SW Hall Blvd. and Ex-Officio County Clerk for Washington County, ° Oregon,do hereby certify that the within instrument of , ' A Tigard,OR 97223 writing was received and recorded in the book of records of said county. t ,\ 7 Joe Nelson,Director of Assessment and Taxation,Ex- w!r,4cws"n�. Officio County Clerk Space above reserved for Washington County Recording information PRIVATE STORMWATER FACILITIES AGREEMENT This Agreement is made and entered into this 24th day of May,2023,by and between the CITY OF TIGARD,a municipal corporation of the State of Oregon(City)and SN Investment Properties,LLC (Owner). RECITALS A. Owner has developed or will develop the Facilities listed below. (List the type of private stormwater facilities on site and the quantity of each type). Facility type(list each): Canister Filter Quantity: 1 Size: 4-18" perk filter cartridges B. The Facilities enable development of a portion(as depicted on Exhibit A-1)of the property at 16200 SW Pacific Hwy Tigard, Oregon 97223 (as described on Exhibit A-2)while mitigating the impacts of additional surface water and pollutants associated with stormwater runoff prior to discharge from the property to the public storm water system. The consideration for this Agreement is connection to the public storm water system. C. The property benefited by the Facilities and subject to the obligation of this Agreement is described below or in Exhibit A-1 (Property)attached hereto. D. The Facilities are designed by a registered professional engineer to accommodate the anticipated volume of runoff and to detain and treat runoff in accordance with Clean Water Service City's Design and Construction Standards. E. Failure to inspect and maintain the Facilities can result in an unacceptable impact to the public stormwater system. NOW,THEREFORE, it is agreed by and between the parties as follows: 1. OWNER RESPONSIBILITIES.The City has provided Owner an Operations and Maintenance(O&M Plan)for each facility.Owner agrees to operate, inspect and maintain each Facility in accordance with the current O&M Plan and any subsequent modifications to the Plan. Owner shall maintain a log on inspection activities. The log shall be available to the City upon request during City inspections. Page 1 —Private Storm water Faciliites Agreement 1 d 2. DEFICIENCIES.All aspects in which the Facilities fail to satisfy the O&M Plan shall be noted as "Deficiencies." 3. OWNER CORRECTIONS. All Deficiencies shall be corrected at Owner's expense within thirty(30)days after completion of the inspection. If more than 30 days is reasonably needed to correct a Deficiency, Owner shall have a reasonable period to correct the Deficiency so long as the correction is commenced within the 30-day period and is diligently prosecuted to completion. 4. CITY INSPECTIONS. Owner grants City the right to inspect the Facilities during normal business hours and upon prior written notice provided to: Schnitzer Properties,LLC, 1121 SW Salmon Street, Suite 500,Portland,OR 97205,Attn: Legal Department. City will endeavor to give ten(10)days prior written notice to Owner,except that no notice shall be required in case of an emergency. City shall determine whether Deficiencies need to be corrected.Owner(at the address provided at the end of this Agreement,or such other address as Owner may designate in writing to City)will be notified in writing through the US Mail of the Deficiencies and shall make corrections within 30 days of the date of the notice. 5. CITY CORRECTIONS. If correction of all Owner or City identified Deficiencies is not completed within the timeframe set forth in Section 3,City shall have the right to have any Deficiencies corrected. City,subject to the rights of any tenants at the Property, (i)shall have access to the Facilities for the purpose of correcting such Deficiencies and(ii)shall bill Owner for all costs reasonably incurred by City for work performed to correct the Deficiencies(City Correction Costs)following Owner's failure to correct any Deficiencies in the Facilities. Owner shall pay City the City Correction Costs within thirty (30)days of the date of the invoice. Owner understands that this is a debt owing to City. In addition, Owner agrees that upon non-payment,City Correction Costs shall be secured by a lien on the Property for the City Correction Cost amount plus interest and penalties. 6. EMERGENCY MEASURES. If at any time City reasonably determines that the Facilities create any imminent threat to public health, safety or welfare,City may immediately and without prior notice to Owner take measures reasonably designed to remedy the threat. City shall provide notice of the threat and the measures taken to Owner as soon as reasonably practicable,and if such imminent threat arose from a Deficiency with the Facilities,charge Owner for the cost of these corrective measures as provided in Paragraph 5. 7. FORCE AND EFFECT. This Agreement shall constitute an equitable servitude or covenant running with the land and shall bind all owners of the Property present and future,and their heirs, successors and assigns. 8. AMENDMENTS.The terms of this Agreement may be amended only by mutual agreement of the parties. Any amendments shall be in writing,shall refer specifically to this Agreement, and shall be valid only when executed by the owners of the Property,City,and recorded in the Official Records of the county where the Property is located. 9. PREVAILING PARTY. In any action brought by either party to enforce the terms of this Agreement,the prevailing party shall be entitled to recover all costs, including reasonable attorney's fees as may be determined by the court having jurisdiction, including any appeal. 10. SEVERABILITY.The invalidity of any section,clause, sentence,or provision of this Agreement shall not affect the validity of any other part of this Agreement,which can be given effect without such invalid part or parts. Page 2—Private Storm water Faciliites Agreement IN WITNESS WHEREOF, Owner and City have signed this Agreement. NOTARIZE DOCUMENT BELOW By: Title: . ; 1 , ► . ► I, PRESIDENT STATE OF OREGON ) )ss. County of ) This instrument was acknowledged before me on M .2-5 20 Z-3 by a rdaiti p . sci►N,-i as of SlV( 1✓1 v EU LLC NOTARY PUBLIC FOR OREGON 4.‘:1,r) OFFICIAL STAMP SARAH ARDIN RYAN-CNOX Co M sPUUBUC-ORE My Commission Expires: 5—/2 ;-0.2-6 MY COMMISSION EXPIRES MAY 22,2026 CITY OF TIGARD By: ' e Wisneiwski P.E.) Page 3—Private Storm water Faciliites Agreement • ' Exhibit A-1 VNOS 11' --____,.. zntl6•1Lit P.\ SW DUttiV S 52ZAPLOrtf67''''''''''''''''''''''' oll•••••,[11 oartiLT AL YThl CUrt. ""..0 $ 4 ...rt. -41 * missro.....o • . ,I . .......,..,.....—.. .,,---, ,,,r. .., t1 s.,.... -, — I V '-'-- / i - / ---1 BASS OF WARP/GS , .--""- 0 ....;—tu.„,.... u i...‘4,„., 0-. ,-,,'i , I ' 7 i gv,,',. '1 -- . - 1& i ----- ,- \- ---1"-' -7:- *::.0'...,.:21 0',, * :;1--1 ' ;... ,,':',.:, ‘,„:::*`, -J-i-J--- ,..v .,, ..... Acr. 4L antranr." new, ...- — . . 1 LEGIAV 11 v xxr"""''''' II StRVEYOR'S CEMIRCATION 11 i i 1117N7YAIAP 1 1 ,......"." 1 1 .. 1 11 IPVIA MIR T . yA TERRAMARK [ DEsx2V8tRkEY li 1 i '..1:11 ...-IgkrArr jild-I. CHFOTLE r til iiiiiJ '2/;Ungr' SCALE 1-=2o' 6 sexemote ..,12,V2.22 1 rivrod en...0 -a • i r, \ _ PRELIMINARY REPORT (Continued) Order No.:3626078958AMS-TTPOR50 EXHIBIT A-2 PARCEL 1: Parcels 1 and 2,PARTITION PLAT NO. 1994-028, in the City of Tigard, County of Washington and State of Oregon; EXCEPTING THEREFROM that portion of Parcel 2 conveyed to Albertsons,Inc., by Deed recorded July 9, 1999 as Recorder's Fee No.99-082159 and described as follows: Beginning at the Southwest corner of said Parcel 2,PARTITION PLAT NO. 1994-028;thence along the Westerly line of said Parcel 2 North 00°02' 39" West, 144.43 feet;thence South 89° 57'21" West,7.00 feet;thence North 00° 02'39" West,345.83 feet;thence North 89° 57'21" East,44.30 feet;thence leaving said Westerly line South 00°02' 39" East,345.85 feet;thence North 89°57'21" East, 7.00 feet;thence South 00°02'39" East, 144.46 feet to the Southerly line of said Parcel 2;thence along said Southerly line North 89° 58'42" West,44.30 feet to the point of beginning. PARCEL 2: Parcels 1 and 2,PARTITION PLAT NO.2004-015,in the City of Tigard, County of Washington and State of Oregon. EXCEPTING that portion conveyed to State of Oregon, by and through its Department of Transportation, recorded February 14,2014,Fee No. 2014-008829 PARCEL 3: A portion of Lots 18 and 19, WILLOWBROOK FARMS in the City of Tigard,County of Washington and State of Oregon described as: Beginning at the Southwest corner of Parcel Ill as described in a Real Estate Contract to William Brownson II and Judith M.Brownson,recorded September 16, 1980,as Recorder's Fee No. 80-032465, which point bears South 00°08' 50" East 695.17 feet from the one-quarter corner on the North line of Section 15,Township 2 South,Range 1 West of the Willamette Meridian, in the County of Washington and State of Oregon;thence North 00°08' 50" West along the East line of the Northwest one-quarter of said Section 15, a distance of 50.00 feet;thence South 89° 58'42" East parallel with the South line of said Brownsen tract,629.86 feet to a point on the West line of S.W. 113th Avenue;thence South 00°09'02" East along the West line of said street, 50.00 feet to a point on the South line of said Brownson tract; thence North 89°58'42" West along said South line, a distance of 629.86 feet to the point of beginning. PARCEL 4: An easement for parking, ingress and egress,over the land described therein pursuant to the terms and provisions thereof as granted in that certain Declaration of Restrictions and Grant of Easements recorded June 12, 1987 as Recorder's Fee No. 87-030100, as amended by instrument recorded July 9, 1999 as Fee No. 99-082160,Records of Washington County, Oregon. Page 4—Private Storm water Faciliites Agreement _i____ KRISTAR /� FloGard® Perk Filter Systems Operations and Maintenance Manual f ff.:4, .lfrn7f,7".7. i /,•f t f•.t'3 �" • ��! // !"•••-•r1 Vf (1 }J iii 4 e. • }Arima'*' .'.. fir-' _ ilk ; , , , :. ..,,oN. _ ! , ; 1i :. , , I • �>f Version 1.00a—November 17, 2008 2 I FloGard® Perk Filter System 0 & M Manual FloGard®Perk Filter Systems- Radial Media Filtration Description /Basic Function The Perk Filter is a stormwater filtration device used to reduce pollutant loading in runoff from urban developments. Impervious surfaces and other urban and suburban landscapes generate a variety of contaminants that can enter stormwater, polluting downstream receiving waters. The Perk Filter captures and retains sediment, oils, metals and other target constituents close to the source and reduces the total discharge load. The Perk Filter cartridge is manufactured from durable polymeric components with a polymer-coated steel support screen and stainless steel hardware. Its base construction allows use with a wide variety of media chosen to address site-specific pollutants of concern. Perk Filters may be installed as a retrofit to suitable existing curb inlet, drop inlet, or combination catch basins, as an integral part of a coated steel- or concrete-housed stormwater inlet system for commercial, residential, and industrial developments, or as centralized modular treatment system installed either on- line or off-line. Prefiltration Systems constructed with a catch basin inlet are equipped with a FloGard®Plus Catch Basin Insert for pre-filtration. This insert captures gross pollutants such as trash, debris, hydrocarbons, and large sediment particles. Gravity Separation Some Perk Filter systems have an inlet bay wherein the initial stormwater flows are received. This is separated from the main treatment chamber by a baffle wall with weir assembly. Medium size sediment particles are retained in the inlet bay. A drain down assembly to eliminate standing water from the inlet bay area between storm events is included in standard configurations. Media Filtration Once the stormwater enters the treatment chamber, it will pass through the filtration cartridges containing the project-specified filter media as the water level rises in the chamber. Very fine pollutant particulates will be retained in the filter cartridges as the water flows through the media to an interior perforated pipe, dropping the treated stormwater into an outlet chamber below a false floor. Peak Flow Bypass Perk Filter systems are designed with a peak flow bypass to ensure the system will not back up and cause upstream flooding during extraordinary storm events. The bypass weir is an integral part of the baffle wall assembly in the inlet bay and allows peak flow stormwater directly to the outlet chamber. tib.. r'.;. i AIop 10 ,. iL aRlflii Nil i mre !MC* .0,iibi{ WON KriStar Enterprises,Inc. 360 Sutton Place Santa Rosa,CA 95407 (800)579-8819 www.kristar.com 31 Page - FloGard® Perk Filter System 0 & M Manual Maintenance Overview for FloGard®Perk Filter Systems State and Local regulations require that stormwater management systems be maintained and serviced on a recurring basis. The purpose of maintaining a clean and obstruction free Perk Filter system is to ensure the system performs the intended function of the primary design. Trash and debris, floatables, gross pollutants and sediment can build up in any stormwater system. This can cause the system to function improperly by impeding flow in and out of the system and reducing the operating efficiency of the media filters. Downstream and upstream, areas could run the risk of flooding and deleterious environmental impact. Recommended Frequency of Service It is recommended that FloGard®Perk Filter systems be serviced on a regularly occurring basis. Ultimately the frequency depends on the amount of runoff, pollutant loading, and interference from trash, debris and gross pollutants as well as proper maintenance of upstream pretreatment devices. However, it is recommended that each installation be inspected in accordance with the following guidelines: Level 1 Inspection Service—Six (6) months after unit is placed into service, or six (6) months after a Level 2 or Level 3 inspection. Level 2 Inspection Service- Six (6) months after a Level 2 inspection or twelve (12) months after a Level 3 service. Level 3 Service—As determined by findings from Level 2 inspection service reports indicating a media filter change or system repairs are required to maintain the operating efficiency of the system. Service Procedures Inlet Bay 1. The inlet manhole cover(s) and or grate(s) shall be removed and placed to one side. 2. For systems with a FloGard Plus Catch Basin Insert, the insert will be cleaned in accordance with the general specifications for maintenance of those devices. After cleaning the filter shall be removed and set aside. 3. Any debris will be removed from the inlet bay(s) and disposed of in accordance with local regulations. 4. Check and clean the area behind and under the inlet weir/bypass assembly. Remove assembly as necessary to conduct inspection. 5. Check drain down assembly and clean if necessary. 6. Re-install catch basin insert filter. 7. Re-install grate or manhole access cover. Cartridge Bay 1. Remove and place to one side the manhole access covers above the cartridge bay. 2. A Level 1 inspection service shall consist of a visual inspection from the surface level. Observe and note the condition of the cartridge bay and the cartridges, measure sediment level, if any, and note on maintenance record. Physical entry is not required unless the depth prevents the entire cartridge bay area from being observed. KriStar Enterprises,Inc. 360 Sutton Place Santa Rosa,CA 95407 (800)579-8819 www.kristar.com 4 I FloGard® Perk Filter System 0 & M Manual 3. A Level 2 inspection service shall consist of a physical, confined-space entry into the cartridge bay. The filter cartridges and filter media shall be inspected for condition and filter media life, the sediment level, if any, measured, and any trash or debris removed and disposed of in accordance with local regulations. All information and recommendations shall be noted on the maintenance record. 4. A Level 3 service shall consist of a physical, confined-space entry into the cartridge bay. The filter cartridges shall be removed and replaced with re-charged exchange filter cartridges. As an option, the filter media may be removed of on-site, the cartridges cleaned, and replacement media be installed into the cartridges. All spent filter media shall be disposed of in accordance with local regulations. 5. Upon completion of inspection/service, re-install the manhole access cover(s). 6. The manhole cover(s) and/or grate(s) shall be replaced. Inspection /Maintenance Requirements Listed below are some recommendations for equipment and training for personnel to inspect and maintain a FloGard®Perk Filter system. Personnel — OSHA Confined Space Entry Training is a prerequisite for entrance into a system. In the state of California personnel should be CaIOSHA certified. Equipment— Record Taking (pen, paper, voice recorder) Proper Clothing (appropriate footwear, gloves, hardhat, safety glasses, etc.) Flashlight Tape Measure Measuring Stick Pry Bar Traffic Control (Flagging, barricades, signage, cones, etc.) First aid materials Debris and Contaminant collectors Debris and Contaminant containers Vacuum Truck Disposal of Gross Pollutants, Hydrocarbons, Sediment, and Filter Media The collected gross pollutants, hydrocarbons, sediment, and filter media shall be disposed of in accordance with local, state and/or federal agency requirements. KriStar Enterprises,Inc. 360 Sutton Place Santa Rosa,CA 95407 (800)579-8819 www.kristar.com ►` C NTECH® ENGINEERED SOLUTIONS StormFilter Inspection and Maintenance Procedures , ti id . _ _... . _ . . , . . . . , . . _ . ,_..._ _ _ ._ ., ... . _ . . . . .. . .. • , _ ..,....7......_ ..„:,......... .. ._ .„ ,..,..„,....,..„....,.:t."ef,S.t _. "4 • .04k _ 1. 1 at31v` �y h'4�. iw =t ). 5 4 + iti The Stormwater Management StormFilter Maintenance Guidelines In addition to these two activities, it is important to check The primary purpose of the Stormwater Management the condition of the StormFilter unit after major storms for StormFilter®is to filter and prevent pollutants from entering our potential damage caused by high flows and for high sediment accumulation that may be caused by localized erosion in the waterways. Like any effective filtration system, periodically these drainage area. It may be necessary to adjust the inspection/ pollutants must be removed to restore the StormFilter to its full maintenance schedule depending on the actual operating efficiency and effectiveness. conditions encountered by the system. In general, inspection Maintenance requirements and frequency are dependent on the activities can be conducted at any time, and maintenance should pollutant load characteristics of each site. Maintenance activities occur, if warranted, during dryer months in late summer to early may be required in the event of a chemical spill or due to fall. excessive sediment loading from site erosion or extreme storms. It is a good practice to inspect the system after major storm events. Maintenance Frequency The primary factor for determining frequency of maintenance for Maintenance Procedures the StormFilter is sediment loading. Although there are many effective maintenance options,we A properly functioning system will remove solids from water by believe the following procedure to be efficient, using common trapping particulates in the porous structure of the filter media equipment and existing maintenance protocols.The following inside the cartridges.The flow through the system will naturally two-step procedure is recommended:: decrease as more and morearticulates are trapped.pped. Eventually 1. Inspection the flow through the cartridges will be low enough to require • Inspection of the vault interior to determine the need for replacement. It may be possible to extend the usable span of the maintenance. cartridges by removing sediment from upstream trapping devices 2. Maintenance on a routine as-needed basis, in order to prevent material from being re-suspended and discharged to the StormFilter treatment • Cartridge replacement system. • Sediment removal The average maintenance lifecycle is approximately 1-5 years. Inspection and Maintenance Timing Site conditions greatly influence maintenance requirements. At least one scheduled inspection should take place per year with StormFilter units located in areas with erosion or active maintenance following as warranted. construction may need to be inspected and maintained more often than those with fully stabilized surface conditions. First,an inspection should be done before the winter season. During the inspection the need for maintenance should be Regulatory requirements or a chemical spill can shift maintenance determined and, if disposal during maintenance will be required, timing as well. The maintenance frequency may be adjusted as samples of the accumulated sediments and media should be additional monitoring information becomes available during the obtained. inspection program.Areas that develop known problems should be inspected more frequently than areas that demonstrate no Second, if warranted,a maintenance(replacement of the filter problems, particularly after major storms. Ultimately, inspection cartridges and removal of accumulated sediments)should be and maintenance activities should be scheduled based on the performed during periods of dry weather. historic records and characteristics of an individual StormFilter system or site. It is recommended that the site owner develop a database to properly manage StormFilter inspection and maintenance programs.. A a • y ' .. — _ , ,A*,!....-.-:,',. ,. 4% f, rry ' ....:',..,,-• - 2 Maintenance Decision Tree The need for maintenance is typically based on results of the Alt,, inspection. The following Maintenance Decision Tree should be used as 1 a general guide.(Other factors,such as Regulatory Requirements, may v % need to be considered) " ,„, ,•..0.-2,,-,.... 1. Sediment loading on the vault floor. .,, * ' a. If >4" of accumulated sediment, maintenance is E 2 z required. :' 2. Sediment loading on top of the cartridge. _ m'� 4. a. If >1/4" of accumulation, maintenance is required. i. ff.:W.f.px� — 3. Submerged cartridges. a. If >4" of static water above cartridge bottom for more rs than 24 hours after end of rain event, maintenance ' x .`Q.15', -� is required. (Catch basins have standing water in the .pr 's Kx # ` . sk cartridge bay.) Inspection Procedures 4. Plugged media. The primary goal of an inspection is to assess the condition of a. If pore space between media granules is absent, the cartridges relative to the level of visual sediment loading as maintenance is required. it relates to decreased treatment capacity. It may be desirable to conduct this inspection during a storm to observe the relative 5. Bypass condition. flow through the filter cartridges. If the submerged cartridges a. If inspection is conducted during an average rain fall are severely plugged,then typically large amounts of sediments event and StormFilter remains in bypass condition will be present and very little flow will be discharged from the (water over the internal outlet baffle wall or submerged drainage pipes. If this is the case,then maintenance is warranted cartridges), maintenance is required. and the cartridges need to be replaced. 6. Hazardous material release. Warning: In the case of a spill, the worker should abort a. If hazardous material release(automotive fluids or other) inspection activities until the proper guidance is obtained. is reported, maintenance is required. Notify the local hazard control agency and Contech Engineered Solutions immediately. 7. Pronounced scum line. a. If pronounced scum line(say_> 1/4"thick)is present To conduct an inspection: above top cap, maintenance is required. Important: Inspection should be performed by a person who is familiar with the operation and configuration of the Storm Filter treatment unit. 1. If applicable, set up safety equipment to protect and notify surrounding vehicle and pedestrian traffic. —,,, 2. Visually inspect the external condition of the unit and take notes concerning defects/problems. - 4....,.. '' 3. Open the access portals to the vault and allow the system x vent. 4. Without entering the vault,visually inspect the inside of the - 1 1, unit,and note accumulations of liquids and solids. 5. Be sure to record the level of sediment build-up on the floor 1 of the vault, in the forebay, and on top of the cartridges. If flow is occurring, note the flow of waterper drainage pipe.9 pp 4:, Record all observations. Digital pictures are valuable for historical documentation. 6. Close and fasten the access portals. 7. Remove safety equipment. f i 8. If appropriate, make notes about the local drainage area l+ t relative to ongoing construction, erosion problems, or high loading of other materials to the system. 9. Discuss conditions that suggest maintenance and make decision as to whether or not maintenance is needed. 3 Maintenance �, Depending on the configuration of the particular system, t , maintenance personnel will be required to enter the vault to perform the maintenance. Important: If vault entry is required, OSHA rules for confined `` space entry must be followed. \ 4 t - Filter cartridge replacement should occur during dry weather. It may be necessary to plug the filter inlet pipe if base flows is occurring. . ilL ,iir Replacement cartridges can be delivered to the site or customers 'f 4 facility. Information concerning how to obtain the replacement cartridges is available from Contech Engineered Solutions. .,=._ s' Warning: In the case of a spill,the maintenance personnel ; f, r, ti tom. should abort maintenance activities until the proper guidance n ;r ` we is obtained. Notify the local hazard control agency and ' " Contech Engineered Solutions immediately. , '' ..t..-:----1. s ITo conduct cartridge replacement and sediment removal ' .rl- . , , 3' �a maintenance: rl. ' 1 � , ,. 1. If applicable,set up safety equipment to protect maintenance V-s y,�,,... s '.r� f .:,,, personnel and pedestrians from site hazards. g'i" I 2. Visually inspect the external condition of the unit and take notes concerning defects/problems. 3. Open the doors(access portals)to the vault and allow the system to vent. 4. Without entering the vault, give the inside of the unit, Important: Care must be used to avoid damaging the including components, a general condition inspection. cartridges during removal and installation.The cost of 5. Make notes about the external and internal condition of repairing components damaged during maintenance will be the vault. Give particular attention to recording the level of the responsibility of the owner. sediment build-up on the floor of the vault, in the forebay, C. Set the used cartridge aside or load onto the hauling and on top of the internal components. truck. 6. Using appropriate equipment offload the replacement cartridges (up to 150 lbs.each)and set aside. D. Continue steps a through c until all cartridges have been 7. Remove used cartridges from the vault using one of the removed. following methods: Method 2: Method 1: A. This activity will require that maintenance personnel enter A. This activity will require that maintenance personnel enter the vault to remove the cartridges from the under drain the vault to remove the cartridges from the under drain manifold and place them under the vault opening for manifold and place them under the vault opening for lifting (removal). Disconnect each filter cartridge from the lifting (removal). Disconnect each filter cartridge from the underdrain connector by rotating counterclockwise 1/4 of underdrain connector by rotating counterclockwise 1/4 of a turn. Roll the loose cartridge, on edge,to a convenient a turn. Roll the loose cartridge, on edge,to a convenient spot beneath the vault access. spot beneath the vault access. B. Unscrew the cartridge cap. Using appropriate hoisting equipment, attach a cable C. Remove the cartridge hood and float. from the boom, crane,or tripod to the loose cartridge. Contact Contech Engineered Solutions for suggested D. At location under structure access, tip the cartridge on its attachment devices. side. B. Remove the used cartridges(up to 250 lbs. each)from the E. Empty the cartridge onto the vault floor. Reassemble the vault. empty cartridge. F. Set the empty, used cartridge aside or load onto the hauling truck. G. Continue steps a through e until all cartridges have been removed. 4 8. Remove accumulated sediment from the floor of the Material Disposal vault and from the forebay.This can most effectively be accomplished by use of a vacuum truck. The accumulated sediment found in stormwater treatment and conveyance systems must be handled and disposed of in 9. Once the sediments are removed,assess the condition of the accordance with regulatoryprotocols. It is possible for sediments vault and the condition of the connectors. to contain measurable concentrations of heavy metals and 10.Using the vacuum truck boom, crane, or tripod, lower and organic chemicals(such as pesticides and petroleum products). install the new cartridges. Once again, take care not to Areas with the greatest potential for high pollutant loading damage connections. include industrial areas and heavily traveled roads. 11.Close and fasten the door. Sediments and water must be disposed of in accordance with 12.Remove safety equipment. all applicable waste disposal regulations.When scheduling 13.Finally, dispose of the accumulated materials in accordance maintenance, consideration must be made for the disposal of with applicable regulations. Make arrangements to return the solid and liquid wastes.This typically requires coordination with used empty cartridges to Contech Engineered Solutions. a local landfill for solid waste disposal. For liquid waste disposal a number of options are available including a municipal vacuum truck decant facility, local waste water treatment plant or on-site treatment and discharge. Related Maintenance Activities - Performed on an as-needed basis StormFilter units are often just one of many structures in a more $ . , comprehensive stormwater drainage and treatment system. In order for maintenance of the Storm Filter to be successful, it is imperative that all other components be properly maintained. The maintenance/repair of upstream facilities should be carried out prior to Storm Filter maintenance activities. f In addition to considering upstream facilities, it is also important to correct any problems identified in the drainage area. Drainage area concerns may include: erosion problems, heavy oil loading, and discharges of inappropriate materials. k �. E r '..-,.-,i„..e,,,,,,,,,, .. .. ,. ... 40., ..,,,,,,,,,,,..-„,..4.,.._ -,-;.:„. ,r,,.,.....„ _ _r', ip 5 Inspection Report Date: Personnel: Location: _ System Size: System Type: Vault Cast-In-Place Linear Catch Basin Manhole Other Date: Sediment Thickness in Forebay: Sediment Depth on Vault Floor: Structural Damage: Estimated Flow from Drainage Pipes(if available): Cartridges Submerged: Yes L No I I Depth of Standing Water: StormFilter Maintenance Activities (check off if done and give description) Trash and Debris Removal: n Minor Structural Repairs: Drainage Area Report Excessive Oil Loading: Yes No Source: Sediment Accumulation on Pavement: Yes No Source: Erosion of Landscaped Areas: Yes No Source: Items Needing Further Work: Owners should contact the local public works department and inquire about how the department disposes of their street waste residuals. Other Comments: Review the condition reports from the previous inspection visits. StormFilter Maintenance Report Date: Personnel: Location: System Size: System Type: Vault Cast-In-Place Linear Catch Basin Manhole Other List Safety Procedures and Equipment Used: System Observations Months in Service: Oil in Forebay(if present): Yes No Sediment Depth in Forebay(if present): Sediment Depth on Vault Floor: Structural Damage: Drainage Area Report Excessive Oil Loading: Yes No Source: Sediment Accumulation on Pavement: Yes No Source: Erosion of Landscaped Areas: Yes 7 No Source: StormFilter Cartridge Replacement Maintenance Activities Remove Trash and Debris: Yes No Details: Replace Cartridges: Yes No Details: Sediment Removed: Yes No Details: Quantity of Sediment Removed (estimate?): Minor Structural Repairs: Yes No Details: Residuals(debris, sediment) Disposal Methods: Notes: CRECYCLED PAPER x N C ..= TECH ENGINEERED SOLUTIONS A QUIKRETE COMPANY ©2018 CONTECH ENGINEERED SOLUTIONS LLC, 800-338-1122 www.ContechES.com Contech`s portfolio includes bridges, Rights Reserved.Printed in the USA. engineering industry. s visit All Solutions LLC er and providessite solutions on the o civil Contech Engineered Solu products.For information on other Contech division offerings,sanitary sewer,stormwater adearth stabilization drainage, or call 800.338.1122. www.ContechES.com Support specifications are available at www.conteches.com• • Drawings and sp our engineers. GUARANTMS NOR support is available from AND NEITHER euARAN • Site-specific designp MAKE THEIR OWN EVALUATIONS AND DECISIONS AND AREIN.ALL NEITHER WARRANTIES GUARANTEES NOR. S CH MAKES NO WARRANTY WHATSOEVER,EXPRESS R IMPLIED, NOTHSCRIBED ING IN THIS CATALOG SHOULD BE CONSTRUED ASTEWARRANTY.APPLICATIONS SUGGESTED HEREIN ARE DE ONLY TO HELP READ WARRANTIES OF SUITABILITY FOR ANY APPLICATION CO CONTECHES COM/COS)FOR MORE INFORMATION RELATED 70 THE APPLICATIONS,MATERIALS,COATINGS,OR PRODUCTS DENS 800 338.1122 CH'S CONDtT10N5 OF SALE(AVAl1ABLE AT W W W MERCHANTABILITY AND ELL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE ARE DISCLAI SEE CON www.conteches.com StormFilter Inspection and Maintenance Procedures 5(18