Loading...
HomeMy WebLinkAbout12-19-2024 Declaration of Storm Wate'i •! Thad L. Duvall, Auditor, Douglas County, WA. AFN # 3272852 Recorded 01/02/2025 at 11:06:20AM, COVEN Pages: 21 $323.50 CITY OF EASTWENATCHEE When Recorded Please Return to: Laura, City Clerk City of East Wenatchee 271 9th Street NE East Wenatchee, WA 98802 The information contained in this boxed section is for recording purposes only in accordance with RCW 36.18 and RCW 65.04, and is not to be relied upon for any other puqioses, and shall not affect the intent of or any warranty contained in the document itself. Document Title: Declaration of Storm Water System Treatment Facility Maintenance Restrictions and Covenants Reference Number of Documents Released: N/A Reference Numbers of Related Documents: N/A Grantor: Columbia Valley Community Health Grantee: City of East Wenatchee Legal Description (Abbreviated): PARENT PCL OF ADMIN SEG ON LOT 14 ABOVE CANAL; EAST WEN 11/2-22-20. Full description on page 13. Parcel Number(s): 03800001401 DECLARATION OF STORM WATER SYSTEM TREATMENT FACILITY MAINTENANCE RESTRICTIONS AND COVENANTS Grantors declare and covenant as follows: 1. Grantors incorporate all exhibits attached to this Declaration by reference. 2. The City of East Wenatchee is the beneficiary of all conditions and restrictions set forth in this Declaration. 3. Grantors own real property located at 940 Eastmont Avenue, East Wenatchee, Washington. The legal description of the property is provided in Exhibit A, which is included as an attachment to this documentation and incorporated herein by reference. 4. In relation to the property, Grantors have completed work associated with the project identified as East Wenatchee File Numbers BP2672 and BP2800. 5. As a condition of development, Grantors have designed and constructed a private storm water drainage system ("System") to serve the real property. To ensure the System functions as designed, the design engineer has prepared an operation and maintenance manual, which is attached hereto in accordance with the requirements of the East Wenatchee Municipal Code. 6. Likewise, to ensure the System functions as designed, Grantors are perpetually responsible for the maintenance and repair of the System. 7. Grantors will inspect, maintain, and repair the System in accordance with the requirements of the East Wenatchee Municipal Code, with the operation and maintenance manual, and with the plans that are attached as Exhibit B and the plans that are attached as Exhibit C. 8. The Grantors shall not reduce, expand or otherwise modify the design or operation of the System without first obtaining review by and written approval from the City of East Wenatchee Declaration of Storm Water System Restrictions and Covenants Page 1 of 3 9. Grantors shall maintain the records of the installation of the System. Likewise, Grantors shall make records of all maintenance and repairs done on the System. Grantors shall retain these records for at least five years. Grantors agree to submit copies of these records to the City by December 1 of each year. Grantors will also make these records available to the City within five days upon receiving a written request from the City or any other agency having jurisdiction. 10. If the Grantors receive prior written approval from the City to subdivide the property, Grantors agree to implement a long-term funding mechanism to support the continued inspection, maintenance, and repair of the System. The Grantors shall implement such a funding mechanism by creating an Owner's Association by further declarations and covenants binding upon the real property, binding upon all subdivided lots, and binding upon any purchasers of a subdivided lot, and binding upon Grantors' successors and assigns. 11. To inspect the condition of the System, the City has the right to enter the real property at reasonable times and with reasonable notice. The Grantors agree to fully comply with all written notices of corrective action issued by the City or by any agency with jurisdiction. 12. If the Grantors fail to fully and timely comply as required by a written notice of corrective action, then the City, or any agency with jurisdiction, may enter the real property to perform all work necessary to bring the System into compliance with these Covenants. The Grantors agree to pay all costs and expenses incurred by the City, or any agency with jurisdiction, for such repairs and maintenance. These costs include but are not limited to, the cost of personnel or contractors, the cost of equipment, the cost of any design and engineering, and the cost of materials. The City will bill Grantors for all costs associated with any remedial work done by the City. Measured from the time the remedial work is completed; the City will charge interest (as allowed by law) and will place a lien on the property for any unpaid costs. 13. Grantors waive any and all claims for damages against the City arising from the design, construction, inspection, repair and/or maintenance of the System. 14. Grantors agree to indemnify, defend and hold harmless the City from any and all claims arising from the design, construction, inspection, repair or maintenance of the System. 15. Unless Grantors receive prior, written approval from the City, the Grantors may not amend or modify the restrictions and conditions set forth in this Declaration. 16. If one of the parties initiates legal action to enforce the terms of this Declaration, each party shall bear its own costs, attorney's fees, expert fees, and other fees. 17. The law of the State of Washington governs the interpretation and enforcement of this Declaration. Any dispute regarding the interpretation or enforcement of this Declaration shall by resolved by the Douglas County Superior Court. 18. The conditions and restrictions contained in this Declaration, along with the City's right to enforce them, are covenants that run with the real property in perpetuity. Accordingly, the conditions and restrictions contained in this Declaration apply and Declaration of Storm Water System Restrictions and Covenants Page 2 of 3 are forever binding upon Grantors, heirs, executors, administrators, subsequent purchasers, grantees, or assigns. 19. If the Douglas County Superior Court determines that any provision of this Declaration is illegal, invalid or unenforceable, the remaining provisions of the Declaration will remain in full force and effect Grantee - CITY OF EAST WENATCHEE <• ^errilea Crawford, Mayor ^•/ ATTEST: MM Vi^^ Clerk Laura Leon Grantor^^^ <^^^{G^^-^^- Date: /2/'9/2:o2/Date: ^/V^^f T~T CERTIFICATE OF ACKNOWLEDGMENTState of ^I^^^H'^ } County of.^t^t/^l } J. ss. ^Ai^°On this day personally appeared before me ' |Akl^e-1' l\|^Af%- to me known to be the individual, or individuals described in and'who executed the within and foregoing instrument, and acknowledged to me that he/she/they signed the same as his/her/their free and voluntary act and deed, for the uses and purposes therein mentioned. Given under my hand and official seal this ^$"Iii day of X^Er1.S&^_ , ^€^ . By: ^€^ ^^^^^_ Notary Public residing at ^^ %ME?O A^ My Appointment Expires: ^/•^/^'s'^ CERTIFICATE OF ACKNOWLEDGMENTState of _}} ss.County of_} On this day personally appeared before me to me known to be the individual, or individuals described in and who executed the within and foregoing instrument, and acknowledged to me that he/she/they signed the same as his/her/their free and voluntary act and deed, for the uses and purposes therein mentioned. Given undermy hand and official seal this _ day of_, _. By:. Notary Public residing at My Appointment Expires: ^1.?;%?^. ": 5z^.^j j24013S"•±\ ^'^^"f ^^/.T>t/aL'° .^. f^&^%^^SH ^^ Declaration of Storm Water System Restrictions and Covenants Page 3 of 3 Stormwater Maintenance and Operation Procedures CVCH Behavioral Health Clinic 2023-12-06 GENERAL This Operation and Maintenance Manual is for the exclusive use of the Columbia Valley Community Health, Medical Dental and Behavioral Health Clinics located at 940 Eastmont Avenue, East Wenatchee, Washington. The operation and maintenance of the stormwater management facilities and their associated appurtenances are the sole responsibility of the facility Owner. The Owner agrees to operate and maintain the facilities in proper working order in accordance with the Phase 1 (Medical Dental) As-Built plans and specifications dated 2023- 08-16 and Phase 2 (Behavioral Health) As-Built plans dated 2024-12-06, as well as current requirements as regulated by the Department of Ecology and City of East Wenatchee rules and regulations at time of this agreement. Annual reporting required by any agency shall also be submitted to the City of East Wenatchee by December 1st of each year. INSPECTION Inspection is required in early spring and late fall every year, and additionally after severe rain storm events. Silt deposition within the pond, catch basins, pipes, roof drains, and erosion and invasive weed growth should be looked for and noted and addressed as outlined below whether annual maintenance is due or not. MAINTENANCE Periodic maintenance of the facilities and appurtenances shall be completed in accordance with the attached Tables. CONVEYANCE SYSTEM These facilities include the gutters, downspouts, tight-lines, swales, clean-outs, catch basins and storm pipes. INSPECTION Inspection is required in early spring and late fall every year, and additionally after severe rain storm events. Silt deposition in pipes and blockages at inlet structures should be looked for, in addition to settlement orwashouts along the alignment of the pipes that might indicate blockages and pipe damage below. Covers and grates ofclean-outs and catch-basins should be checked to ensure they are undamaged and properly in place. GENERAL MAINTENANCE See attached tables for gutters, downspouts, cleanouts, swales and catch basins. See attachment for underground isolator row maintenance. Pipes should be cleaned out by flushing to the next structure in the system, with the sediment removed from the structure by vactor truck or manual methods. Removal should occur prior to entering the isolator row where possible. The infiltration pond should be cleaned periodically if standing water does not dissipate within 72 hours of a stormwater event. It should be visually inspected for oils, greases or chemicals in the event of an unreported spill. If a spill has occurred, guidelines outlined the Facility Spill Response Plan should be implemented immediately. Page 1 of 5 Stormwater Maintenance and Operation Procedures CVCH Behavioral Health Clinic 2023-12-06 RECOMMENDED VEGETATION REQUIREMENTS All vegetated areas providing water quality treatment and soil stabilization shall be maintained in proper health including the snow storage areas. Grass and landscaping found to be unhealthy or dead shall be removed and replaced immediately. Grass seed of the following composition (or approved equal), proportion and quality shall be applied at the rate of60-pounds per acre. Kind and Variety of Seed in Mixture % By Weight Minimum % Germination Streambank Wheatgrass 25 80 Thickspike Wheatgrass 25 80 Western Wheatgrass 25 80 Sheep Fescue 25 80 Weed Seed 2.0 (Max) Inert and Other Crop 6.6 (Max) FERTILIZER The Owner or its qualified representative shall apply sufficient quantities of fertilizer to supply the following amount of nutrients: Total Nitrogen: 135 pounds per acre (95 pounds of Nitrogen per acre shall be derived from Isobutylidene Diurea with the remainder derived from any approved source) Available Phosphoric Acid: 60 pounds per acre. Soluble Potash: 60 pounds per acre. Page 2 of 5 Stormwater Maintenance and Operation Procedures CVCH Behavioral Health Clinic 2023-12-06 Catch Basins / Manholes / Controls Maintenance Component Defect When Maintenance Is Needed Required Maintenance General Trash / Debris / Vegetation / Sediment Material inside basin exceeding 50% of the sump depth (measured from bottom of lowest pipe invert to the base). Remove all material in the catch basin. Material exceeds 25% of sump depth or 1 foot below orifice plate. Control structure orifice is not blocked. Remove all trash and debris. Contamination / Pollution Any evidence of oil, gasoline, contaminants or other pollutants (Coordinate removal/cleanup with local water quality response agency). Remove source of pollution. Structure Frame / Top Slab Damage Top slab has holes larger than 2 square inches or cracks wider than 1/4 inch. Grout all holes and cracks. Frame not sitting flush on top slab, i.e., separation of more than 3/4 inch of the frame from the top slab. Frame not securely attached. Re-level frame flush to riser rings or top slab and firmly re-attached. Wall / Base Fractures or Cracks Maintenance person judges that structure is unsound. | Replace basin or repair to specifications. Grout fillet has separated or cracked wider than 1/2 inch and longer than 1 foot at the joint of any inlet/outlet pipe or any evidence of soil particles entering catch basin through cracks. Re-grout pipe to basin wall. Settlement / Misalignment Basin exhibits a safety, function, or design problem. | Replace basin or repair to specifications. Structure is not in upright position (allow up to 1 0% from plumb). Structure in correct position. Pipe Trash / Debris / Vegetation Material inside any pipe blocking more than 1/3 of its diameter. Remove all trash or debris. Vegetation growing :n iniet'outiet pipe joints that is more than six inches tall and less than six inches apart. Remove a!! vegetation and root growth. Connections Connections to outlet pipe are not watertight and show signs of rust. Connections to outlet pipe are water tight; structure repaired or replaced and works as designed. Cover (solid)Missing / Open Missing or only partially in place. Any open catch basin requires maintenance. Replace cover. Faulty Locking Mechanism Cannot be opened by one maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread. Replace bolts. Difficult to Remove One maintenance person cannot remove lid after applying normal lifting pressure. Renew cover and frame. Ladder Unsafe Missing rungs, not securely attached, misalignment, rust, cracks, or sharp edges. Replace missing parts or entire ladder. Grate (open)Opening Unsafe Opening wider than 7/8 inch.Replace grate. Trash / Debris / Vegetation Material located upstream of the grate inlet or blocking grate inlet by more than 10%. Remove all material located immediately upstream of or on grate opening. Damaged / Missing Missing or broken member(s).Replace grate. Cleanout Gate Damaged / Missing Cleanout gate is not watertight or is missing.Gate is watertight and works as designed. Gate cannot be moved up and down by one maintenance person. Gate moves up and down easily and is watertight. Chain/rod leading to gate is missing or damaged.Chain is in place and works as designed. Gate is rusted over 50% of its surface area.Gate is repaired or replaced to meet design standards. Orifice Plate Damaged / Missing Control device is networking properly due to missing, out of place, or bent orifice plate. Plate is in place and works as designed. Obstructions Any trash, debris, sediment, or vegetation blocking the plate. Plate is free of all obstructions and works as designed. Overflow Pipe Obstructions Any trash or debris blocking (or having the potential of blocking) the overflow pipe. Pipe is free of all obstructions and works as designed. Page 3 of 5 Stormwater Maintenance and Operation Procedures CVCH Behavioral Health Clinic 2023-12-06 Ponds (Detention, Infiltration, Evaporation) Maintenance Component Defect When Maintenance Is Needed Required Maintenance General Trash & Debris Amount exceeding 5 cubic feet per 1,000 sf (about one standard size garbage can). Remove all trash and debris. Poisonous Vegetation / Noxious weeds Anything which may constitute a hazard to maintenance personnel or the public. Any evidence of noxious weeds as defined by State or local regulations. Remove all poisonous vegetation. Coordinate with local health / weed control authority. Contaminants / Pollution Evidence of oil, gasoline, contaminants or other pollutants. Coordinate removal/cleanup with local water quality authority. Remove source of contaminants or pollutants. Rodent Evidence of rodent holes or evidence of water seepage through berm. Destroy all rodents and repair berm. Coordinate with Ecology Dam Safety Office if pond exceeds 10 acre feet. Insects Wasps, hornets, etc. interfere with maintenance activities. Remove / eradicate all insects. Trees Tree interfering with maintenance access or maintenance activity. Dead, diseased, or dying trees evident. Remove all trees hindering maintenance activities. Pipe Clogging Sediment and/or debris material within pipe(s).Remove all sediment and/or debris. Side Slopes Erosion Damage exceeding 2 inches deep where cause is still present and there is potential for continued erosion. Any erosion observed on a compacted (fill) embankment. Stabilized slopes with appropriate measure(s); e.g., rock reinforcement, planting of grass, soil re-compaction. Erosion to compacted (fill) embankments require a licensed civil engineer to resolve. Storage Area Sediment Accumulated sediment exceeding 10% of the designed pond depth. Remove all sediment and reshape pond to original pond geometry. Reseed if necessary. Liner Visible cracks and holes.Repair or replace line and cover (if required). Ponding Water ponds for over 72 hours after rainfall ceases.Remove all sediment and clean facility. Oil Sheen Prevalent and visible oil sheen.Remove all oil using oil absorbent pads or vactor truck. Remove source of oil. Berms, Dikes & Spillways Settlement Settlement exceeding 4 inches below design elevation. A licensed civil engineer should be consulted to determine the source of the settlement. Reconstruct dike to original geometry. Seepage Discernable water flow through side of pond.A licensed civil engineer should be consulted to determine the cause of the seepage. Eliminate seepage and source of erosion. Tree Growth Tree growth can create blockage and seepage problems and may cause a failure. Remove all Trees. A licensed civil engineer should be consulted for proper facility restoration. Emergency Overflow / Spillway Single layer of rock remaining above native soil in area 5 sf or larger. Any exposure of native soil along the outflow path. Restore rock and pad depth to design standards. Rock Filters Sediment / Debris By visual inspection, little or no water flows through filter during heavy rain storms. Replace gravel in rock filter. Pre-settling Ponds & Vaults Sediment / debris Deposit exceeds 6" depth.Remove all sediment / debris. Page 4 of 5 Catch Basin Media Inserts Stormwater Maintenance and Operation Procedures CVCH Behavioral Health Clinic 2023-12-06 Maintenance Component Defect When Maintenance Is Needed Required Maintenance General Sediment Accumulation When sediment forms a cap over the insert media of the insert and/or unit. Remove the sediment cap on the insert media and its unit. Trash / Debris Accumulation Material accumulates on insert unit creating a blockage/restriction. Remove all trash and debris. Media Not Removing Oil Effluent water from media insert has a visible sheen. Media Water Saturated Insert is saturated with water and no longer has the capacity to absorb. Media Oil Saturated Media is oil saturated. Media Use Beyond Normal Product Life Use is beyond typical life of product. Remove and replace media insert per manufacturer recommended intervals. Energy D issi paters Maintenance Component Defect When Maintenance Is Needed Required Maintenance External Rock Pad Missing / Moved Rock Single layer of rock remaining above native soil in area 5 sfor iarger. Visual exposure of native soil. Reconstruct rock pad to original condition. Erosion Soil erosion in or adjacent to rock pad.Reconstruct rock pad to original condition. Dispersion Trench Pipe Plugged with Sediment Sediment exceeds 20% of the design depth. Clean and flush pipe to original condition. Poor Discharge Visual evidence of concentrated discharge instead of even "sheet flow" along entire trench. Reconstruct trench to original condition. Pipe Perforations Plugged Over 1/2 of pipe perforations plugged with debris and sediment. Clean or replace perforated pipe to original condition Water Flow Out Top of "Distributor" Catch Basin Evidence of catch basin overflow upstream of trench. Reconstruct facility to design standards. Saturated Discharge Area Evidence of receiving area movement Contact licensed civil engineer. Internal Manhole / Chamber Worn/ Damaged Post, Baffles, Wall, Base Dissipating flow reduced to 50% of original or any concentrated worn spot exceeding one square foot which would make structure unsound. Replace structure to design standards. Page 5 of 5 Isolator® Row Plus O&M Manual ;. ^.' s 1 f a ^^^^ w»f- $K ^ The Isolator" Row Plus Introduction An important component of any Stormwater Pollution Prevention Plan is inspection and maintenance. The StormTech Isolator Row Plus is a technique to inexpensively enhance Total Suspended Solids (TSS), Total Phosphorus (TP), Total Petroluem Hydrocarbons (TPH) and Total Nitrogen (TN) removal with easy access for inspection and maintenance. The Isolator Row Plus The Isolator Row Plus is a row ofStormTech chambers, either SC-160, SC-310, SC-310-3, SC-740, DC-780, MC-3500, MC-4500 or MC-7200 models, are lined with filter fabric and connected to a closely located manhole for easy access. The fabric lined chambers provide for sediment settling and filtration as stormwater rises in the Isolator Row Plus and passes through the filter fabric. The open bottom chambers allow stormwater to flow both vertically out of the chambers. Sediments are captured in the Isolator Row Plus protecting the adjacent stone and chambers storage areas from sediment accumulation. ADS Isolator Row and Plus fabric are placed between the stone and the Isolator Row Plus chambers. The woven geotextile provides a media for stormwater filtration, a durable surface for maintenance, prevents scour of the underlying stone and remains intact during high pressure jetting. The Isolator Row Plus is designed to capture the "first flush" runoff and offers the versatility to be sized on a volume basis or a flow-rate basis. An upstream manhole provides access to the Isolator Row Plus and includes a high/low concept such that stormwater flow rates or volumes that exceed the capacity of the Isolator Row Plus bypass through a manifold to the other chambers. This is achieved with an elevated bypass manifold or a high-flow weir. This creates a differential between the Isolator Row Plus row of chambers and the manifold to the rest of the system, thus allowing for settlement time in the Isolator Row Plus. After Stormwater flows through the Isolator Row Plus and into the rest of the chamber system it is either exfiltrated into the soils below or passed at a controlled rate through an outlet manifold and outlet control structure. The Isolator Row Plus Ramp™ is a flared end ramp apparatus attached to the inlet pipe on the inside of the chamber end cap. The FLAMP provides a smooth transition from pipe invert to fabric bottom. It is configured to improve chamber function performance by enhancing outflow of solid debris that would otherwise collect at the chamber's end, or more difficult to remove and require confined space entry into the chamber area. It also serves to improve the fluid and solid flow into the access pipe during maintenance and cleaning and to guide cleaning and inspection equipment back into the inlet pipe when complete. The Isolator Row Plus may be part of a treatment train system. The treatment train design and pretreatment device selection by the design engineer is often driven by regulatory requirements. Whether pretreatment is used or not, StormTech recommend using the Isolator Row Plus to minimize maintenance requirements and maintenance costs. Note: See the StormTech Design Manual for detailed information on designing inlets for a StormTech system, including the Isolator Row Plus. ^•<-^*^ <*^1^^ •/ /.•iy/7^'."'^ii-ii \/ ;,<st[. Looking down the Isolator Row PLUS from the manhole opening, ADS PLUS Fabric is shown between the chamber and stone base. '*. ^^^ a. »1t. -^t.V" <i ^c,.^^- <• m rj / Bfe StormTech Isolator Row PLUS with Overflow Structure (not to scale) STRUCTURE W/ELEVATED BYPASS MANIFOLD! OWRFLOW' »ISOLATOR ROW PLUS 'ir"'^"^I1i ,1:' ,:„;'!! :A' " 0 2 Isolator Row Plus Inspection/Maintenance Inspection The frequency of inspection and maintenance varies by location. A routine inspection schedule needs to be established for each individual location based upon site specific variables. The type of land use (i.e. industrial, commercial, residential), anticipated pollutant load, percent imperviousness, climate, etc. all play a critical role in determining the actual frequency of inspection and maintenance practices. At a minimum, StormTech recommends annual inspections. Initially, the Isolator Row Plus should be inspected every 6 months for the first year of operation. For subsequent years, the inspection should be adjusted based upon previous observation of sediment deposition. The Isolator Row Plus incorporates a combination of standard manhole(s) and strategically located inspection ports (as needed). The inspection ports allow for easy access to the system from the surface, eliminating the need to perform a confined space entry for inspection purposes. If upon visual inspection it is found that sediment has accumulated, a stadia rod should be inserted to determine the depth of sediment. When the average depth of sediment exceeds 3 inches throughout the length of the Isolator Row Plus, clean-out should be performed. Maintenance The Isolator Row Plus was designed to reduce the cost of periodic maintenance. By "isolating" sediments to just one row, costs are dramatically reduced by eliminating the need to dean out each row of the entire storage bed. If inspection indicates the potential need for maintenance, access is provided StormTech Isolator Row PLUS (not to scale) via a manhole(s) located on the end(s) of the row for cleanout. If entry into the manhole is required, please follow local and OSHA rules for a confined space entry. Maintenance is accomplished with theJetVac process. TheJetVac process utilizes a high pressure water nozzle to propel itself down the Isolator Row Plus while scouring and suspending sediments. As the nozzle is retrieved, the captured pollutants are flushed back into the manhole for vacuuming. Most sewer and pipe maintenance companies havevacuum/JetVac combination vehicles. Selection of an appropriate JetVac nozzle will improve maintenance efficiency. Fixed nozzles designed for culverts or large diameter pipe cleaning are preferable. Rear facing jets with an effective spread of at least 45" are best. StormTech recommends a maximum nozzle pressure of 2000 psi be utilized during cleaning. JetVac reels can vary in length. For ease of maintenance, ADS recommends Isolator Row Plus lengths up to 200' (61 m). TheJetVac process shall only be performed on StormTech Isolator Row Plus that have ADS Plus Fabric (as specified by StormTech) over their angular base stone.^/»<^.. / INSTALL FLAMP ON 24' (BOO mm) ACCESS PIPE PART»: SC7402<< OPTIONAL INSPECTION POffT STORMTECH HIGHLY RECOMME FLEXSTORM INSERTS IN ANY UPSTREAM STRUCTURES WHTH OPEN GRATES ELEVATED BYPASS SC-740 CHAMB C??K: "-0 CATCH BASIN OR MANHOLE E 24' (600 mm) HDPE ACCESS PIPE REQUIRED USE E2 END CAP PART ft SC740ECEZ SC-740 END CAP SUMP DEPTH 7BD BY s rre DESIGN (24-1600 mm] MIN RECOMMENDED) 7 ONE LAYER OF ADSPLUS125 WOVEN GEOTEXTILE BETWEEN FOUNDATION STONE AND CHAMBERS 5' (1,5 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS 3 Isolator Row Plus Step By Step Maintenance Procedures Step 1 Inspect Isolator Row Plus for sediment. A) Inspection ports (if present) I. Remove lid from floor box frame ii. Remove cap from inspection riser iii. Using a flashlight and stadia rod,measure depth of sediment and record results on maintenance log. iv. If sediment is at or above 3 inch depth, proceed to Step 2. If not, proceed to Step 3. B) All Isolator Row Plus i. Remove cover from manhole at upstream end of Isolator Row Plus ii. Using a flashlight, inspect down Isolator Row Plus through outlet pipe 1. Mirrors on poles or cameras may be used to avoid a confined space entry 2. Follow OSHA regulations for confined space entry if entering manhole iii. If sediment is at or above the lower row of sidewall holes (approximately 3 inches), proceed to Step2. If not, proceed to Step 3. Step 2 Clean out Isolator Row Plus using theJetVac process. A) A fixed floor cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable B) Apply multiple passes ofJetVac until backflush water is clean C) Vacuum manhole sump as required Step 3 Replace all caps, lids and covers, record observations and actions. Step 4 Inspect & clean catch basins and manholes upstream of the StormTech system. 1)A)1)B 2 zzzzz^g^^zzzzzzzzzzzzzzzzzzzzz. Z^74 //// ^4-,ti'lNNKi' 2 7r^/ Sample Maintenance Log [Stadia Rod Readings Sediment^Dm ;SSti%1 3/15/ll (>,3 ft k\o»ve 9/Z4./11 b,i 0,1 ftfc/20/13 6S o.5 fk 7/7/13 6.3 ft o Observations/Actions Inspector Neu IkvstoLLla.tlow.. Fi.xaA D3M poi.w.l: Is CI fra.me a.t gra.'Aa Some grit felt SM Mucky feel, debris visibLe MV i,K m&Mkote a.K.A IM IsoLoitor Rort fLW, nflOitkvtekioi.kvce ciue System jakfced. a^d. T>3M va.cuume.d. adspipe.com 800-821-6710 ADS "Terms and Conditions of Sale" are available on the ADS website, www.ads-pipe.com The ADS logo and the Green Stripe are registered trademarks of Advanced Drainage Systems, Inc. StormTech* and the Isolator* Row Plus are registered trademarks ofStormTech, Inc. ® 2023 Advanced Drainage Systems, Inc. #11081 6/23 CS // Q StormTech ^ EXHIBIT A LEGAL DESCRIPTION: That portion of Lot 14 of the East Wenatchee Land company's Plat of Section 11 and 2, Township 22 North, range 20 East of the Willamette Meridian, Douglas County, Washington, situated above and on the easterly side ofWenatchee Reclamation District Canal. EXHIBIT B PHASE 1 (MEDICAL DENTAL) STORMWATER PLAN ASBUILT DRAWINGS I ii 1 IIilli 1 s ^^ 3yni33iiH3yvva)i -II^2S &J g!li s'Ill s u Q IsII llli ilII 0 po{^Js ninasv II I i lihi! i II III 11 I III III III IIllg II Ill is Ill ISIi llli llli Ii'ila |m 11!1 1111 ! IIII! i i I II! I s g Q®@©®© © © ©iiiiiuii ©©©©©©©©©©® ^ I i 1 iin ill 111 in iiiii ill Rii i s2I I I II II -i© ® © e iiil s', A !-iB-!! IE© $ J J i! II li li © $ © IJJII il g|g(£)©©© I il il i!II IS §6 © © © il ©I! II© © il ® © ilII E Ill ^1 II iT ^^?.. I in /^ in -^B e J u u\^<i(^^^ 1\ Q\ vB^ \\\m ta-^^.4-^\>6yISO ^3t .1- Es'Iam<?!!gj 111111 I\h^Nlf"131133s @]^5©&ffi-i G !-Ms^I y ^s>^< n^®-i^ © L^ sSd y^f\^ .^d\ r- I BN »3M)S quil s e ! I ! §1 Hi n!UI!!§§ Iil15|ls 53|s iilsas I!U|! I! II!! UIIU ! ®@@a@ III! § i i §!!! ! L ufe A @ liIIIuii<ij CL,!3yni33iiH3yvva)i ^s -II^s§u ft5-IIII i 8 jI g ss oB^•^ I I s Illgssil!po1^ s 5ssIsEIll if??1 I IsJ I IJII ILil I!.II c-n»ui » ^BB; S SS i^i.I! sm alill11i-sIII!I £1111Hlili as h yN1 ©•d 3 s s Ig3 gi i y 11 i s 3II s Ie © 1®1 !©1 II Ill I fflsl sl.Ill III i!16 |i "ninasv 2 s!l I I -.n'\, . \ ^,.;..':.-.\>^-:''.1 3•• .' •\.'-' -1. . •••,"'\ ..' / •• \'.'. .';••''•;; _<!_ E aiil~!^ Sg I s IMi Pa^Klij§l S!H s! iiiigil5s u' 1< k c Si \r I!ill I|i IIII!IIIll ^I!s ^•^0 f. ,.! "! ftl IS I II 1,1 jgiI !11 (^) III L _1 •i Iill ai 3»ni33iiH3yvva)i ^2 siiII1Q .1II iIlls Ii§3sllh °8is^s s^2££U In Q FM poI uI Ill IllIIIllill! I III Ill I I! n PI!II iiII 11^i II's t5tt Ill 8i Illd !?i iil II IIIll I iS IS!Ill I!Ill IIII'jm ill! Ill =!IIIIilIIillIIElii lit Illiiill IIIII!lliilJiiliIIIll ill! 11IffllllllIIillIII!II ill!|lllll II i!;I!!Ill.iiis:;s I: iii II § != e •!iiiiiis.AIII!I IhlliliiiIllIllIII!is llIII!IIill IllsIIs 's iiii iII1.1h I J I:ISla HIIll isII III!I33 ! 51 ES ItIInniiiIIIu@aIII! IIIL IIIIIll illii IllIIr^Ill l!li!1 IJjl III!s ilI III 11 II^S!II !1!11IIIS JIJl!llIII ISI E I!1111111IIUtlIIII 111111§lllllllill ^II11111isISI!!!Ill III! 11111 jjljl lliiiiil^IJII IIS8iillljiiiaiI!1 IJIII!!; 111111 11111 111111 in g ninasvI ^11 s! L EXHIBIT C PHASE 2 (BEHAVIORAL HEALTH) STORMWATER PLAN ASBUILT DRAWINGS u3s s ^^ Msu ±< a z> ELU s; ^0 ml K D .1 BI4 ss. I a1} g aS 0s g t S -.^CLit s a siapwgs ros §1 s I3^ni33ilH3tlVVaX Ill III.S 2 u555u Ln^ninasv<£]^^c.^ill.lljlL II U'lllJfill'iiEII ^?lhlIII!I I S I IIIIIill;i II It <1 3 I i s^11 gilli!i!iil!ll!!li!!!iliil!llii!iI m;!hiIll III 11 Uilj III I! II 11111 lilll IJJirI III III I liirl lsi II II I ill! 11111'IIB iii!!!. Jl 'iEl I 16§6 §6s <s<s<s <^<seisne (g) (gl<(g)e®®©® ® ® ©®o® i®® © ® ® ® ©©© ,;@® \-,.-._:_:.^37^^^/^I M ^/^^i"^(^ari;•s»ri.^•t ^ISJPlTt(rlThf 8 5 <-5<S 8S 5 S 3^i\&iJ \^u n nlI"lls?lir-©\-^—1 s ;^!nwil S IS?1LJ,a ai-^^^->•»\^-^\t --\*a»r^^'•£\s <^«CT >*l^-^»rA ^/t_^^1\fr^^ ^.1lm-'/M/^-5 *uIX ill//.*^,s z^3 5%\<??c <"IS^\s il's•T--•fc s& ,,1 '-J 4^llll^lll]1\i *•;^II^DfcN r-\\f^t-U w.ji \r »cn^4 /"»/n -i4®w1'-I \;>t.»C-IE IJiiiiiiiijj^ :'•ssf»I 'T-.»£.p- 11^'iA<w:^^^ IB ^<-<^I''t fc •t•<^ ^"'""^Dl ^^.?-^^^I?'*yh.!r"iii» J \J.I:-./l^i1 I_ 69B - 31 cs = wiy S '3K OdAO .,^ 30Zl:.:.t-X4.r-'8^ f*A Is'•;<* E A^^\'.H<i/I"^K D "kSs^^/!^^^E»^y<• :/I•s 41 m A lin[I I i-1^T 6^EEE s 8^--^s i IS!iH IIBI^-^-^\.II^<.II^^. t^III msIIIJillJ!llll'!l!l i";^;». .^^sL ua11111!s I Hifca5 ^s?, a a g 3yni33iiH3yvva>i i u SsS^d>-) rtfili & I III s s oBiiiIllQ °°u ninasv i ® S SE I!l i li! I il I I §11..111 II Jl I Illill iiil!I .JlllliSlllillllll!lllL rf^^d .1 ^^o g rid _rf.dll i,W sliljllll 1111llllll31 5 Ead !> V •"I,© 3I 1&ii^jlJff §2 aI il§3e © 1®1 1©1 s 3 3 5 I I I IIll I i!i '^^1^m E \^^m,fe^®3 7T S£^,^im:^@g@giljji ilil.^.^^i^l 111! IiH?;!SV:^i 11 IM II?D:^1tiJ!iil I(iI7;;*=4-J^ is! g ^ 1<^-^I^i! ^ ill iiiil!!ill (=) \,\ e ii ilil lli!I: SL1° 1§1'= ^0te .s! I! 5>!il ?» Ii IIII III!I!SlIEIII!0 li11111^I:I u.It/// I 2 I! I! i i e s !1 ®II ?s ©I! r8 III!IIi^ L t ilililllll il II slal lsi al u II &->trn*iHt nn 3^ni33iiH3yvva)i g I J >u co I: &1litII ;! s II s s oaIs^Ill U Ln Q e r^rou III. ?i«i! 8I!ESS !ISs ! !II fc IIISKI!I HI ^1 1111 s »!IS! Ul I!^ nil!II.J Ill IIJI IIll(I ill ?ii!iiisgili! lililit•IMS!II il i 1!1r<:.»3:::3333 E § g s •II IISII11111r*iEl S!Ill HIIll-4-n1imiIIIII !tlI Is f-v !.IIll IIIkIS?Ml.sl K\ •Is IFliiIll§1^^ I s - -Is^'s S IIu III! I!s !1!J I!I!i-1 II Ill ua IIIll!B!i liaIt IIil I!!ill II I mSill m si i!ii51!!ft Ill I11111s31iS Illj ill ffi11111Ill2; 11111 I lljIIll IItill11111 s IJIII! Hill! IllIS ninasv Ill li L J