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HomeMy WebLinkAboutO&M ManualOPERATIONS AND MAINTENANCE MANUAL FOR POST CONSTRUCTION MEASURES Miller Auto Care INDIANAPOLIS, INDIANA February 17, 2020 OWNER: Keith Stockberger Miller Auto Care 434 S Rangeline Rd Carmel, IN 46032 317-844-7566 millerautocare@yahoo.com CIVIL ENGINEER: HWC ENGINEERING 135 N Pennsylvania Street, Suite 2800 Indianapolis, IN 46204 317-347-3663 office 317-347-3664 fax Owner Acknowledgement Agreement (“Agreement”) For good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned owner (“Owner”) hereby submits this Operation and Maintenance Manual (“Manual”) to the City of Carmel, Indiana (“City”) as a written acknowledgement of Owner’s warranty and agreement to institute, maintain, and follow the water quality Best Management Practices (“BMPs”) listed below, and to follow and abide by the inspection schedule and maintenance activities listed in this Manual. The Owner also hereby agrees to provide, at Owner’s cost, all additional maintenance, repair, and/or replacement services reasonably necessary to maintain the function and longevity of the BMPs from and including the date this Agreement is executed by Owner to and including the date on which a new Agreement is filed with the City by another party who assumes all of the obligations and responsibilities of Owner as set forth herein. BMPs: ___________________________________________________ ___________________________________________________ ___________________________________________________ _______________________________ ________________________ Owner Signature Date _______________________________ ______________________________ Printed Name Company STATE OF INDIANA ) ) SS: COUNTY OF HAMILTON ) BEFORE ME, the undersigned, a Notary Public in and for said County and State, personally appeared _________________________________ Owner subscribed and sworn before this ____ day of __________________, ________. ______________________________ ______________________________ County of Residence Signature ______________________________ Commission Expiration Date ______________________________ Printed Name BMP Owner Name: Miller Auto Care Address: 434 S Rangeline Road Carmel, IN 46032 Contact: Keith Stockberger (317) 844-7566 millerautocare@yahoo.com Emergency phone Numbers: Emergencies – 911 Carmel Fire Department – (317) 571-2600 Indiana Department of Environmental Management (IDEM) – (317) 232-8603 Carmel Engineering – (317) 571-2441 Periodic Inspections - Representatives from the City of Carmel have the right to enter this property to inspect the BMPs. The BMP Owner shall be financially responsible for any maintenance or repairs required by the City or its representatives during City’s inspections. - Refer to checklist and instructions provided with this manual for guidance on BMP inspections. - Inspections must be documented on the inspection forms included in this manual. - Inspections shall be in accordance with the Checklist. - Requirements regarding the submittal of annual inspection reports to the City of Carmel Engineering Department. The first report is due one year after construction is completed, with subsequent reports due each year within the same month of the initial report. If there are any deficiencies found during the inspection, these should be addressed. If the inspection report is not received within the month it is due, if there are deficiencies which were not included in the report, or if any deficiencies included in the report are not addressed in a timely manner, the BMP owner faces enforcement action from the City. BMP Description The Best Management Practice (BMP) for this project is a Pre-Manufactured Aqua-Swirl Concentrator Model AS-6 unit. A BMP is a structural or non-structural measure that is designed for the benefit of water quality and quantity. For this site structural water quality BMPs are used. The storm sewer system for this project includes a series of StormTech detention chambers upstream of the AquaSwirl. The detention chambers will also include an outlet control structure. The AquaSwirl will catch most of the sediment and trash that enters the system, but the rest of the system should also be inspected yearly to ensure optimum performance. The chambers should be checked for sediment depth, and if the depth exceeds 3 inches, the chamber should be cleaned. Appropriate precautions regarding confined spaces and OSHA regulations should always be followed. BMP Maintenance The BMP owner is responsible for the cleaning and maintenance of all new infrastructure within the BMP system, including the Aqua-Swirl AS6, the detention chamber, the outlet structure, and the pipes. A vactor truck is recommended for cleanout of the detention chamber, Aqua-swirl, and other components of the system. Access points to the detention chambers for inspection and maintenance purposes can be found on the BMP Location map. If the vactor truck hose cannot reach a maintenance point, a different method of cleanout, such as a JetVac or similar, should be used. Disposal of the material from the chamber should be with local municipality requirements. Collected solids should be disposed in accordance with all Federal, State, and Local regulations. - BMP owners must routinely inspect BMPs to verify that all BMP components are functioning as designed and are not in danger of failing. All BMPs need maintenance to function as water quality and quantity enhancements. Maintenance includes pumping solids, removing & disposing of litter/debris/sediment, etc. - BMP Owner is responsible for the maintenance of the BMP and any costs associated with maintaining the BMPs. BMP Owner is required to perform any maintenance tasks specified by the annual City inspections. - BMP Owner shall keep the BMP system free from litter. Refer to the inspection and maintenance guidelines for further clarification. - Solids that collect in the BMPs shall be removed when it adversely affects the ability of the BMP to perform as a water quality facility. This will occur after 50% of the BMP storage volume is filled with solids. The solids that are removed from the BMPs should be removed from the site to a suitable disposal / landfill facility. Site Name: Change in ownership since last inspection? Y N Owner Name: Keith Stockberger Owner Address: 434 South Rangeline Road Carmel, IN 46032 Owner Phone Number: (317) 844-7566 Emergency Phone Number: Location: Date: Time: Inspector Name: Floatable Debris and Oil 1. Remove manhole lid to expose liquid surface of Aqua-SwirlTM. 2. Remove floatable debris with basket or net if any is present. 3. If a hydrocarbon spill has occurred, (e.g. more than a sheen of oil or gas is present) the system should be cleaned immediately (see "Cleaning" Figure 3). Note: Water in an Aqua-SwirlTM can appear black like oil due to the dark body of the surrounding structure. Oil appears darker than water in the system and is usually accompanied by debris (e.g. Styrofoam, etc.) with obvious signs of oil stains. The depth of oil can be measured with an oil/water interface probe, a stadia rod with water phylic paste, a coliwasa, or by simply collecting a representative sample with a jar attached to a rod. 4. If hydrocarbon absorbant floc or pads are used, these should be inspected to determine whether they are loaded with hydrocarbons. This will be indicated by a dark colaration of the pad or floc. Pads and/or floc should be removed and disposed of in accordance with City of Indianapolis and any applicable state and/or federal laws if they contain hydrocarbons. Sediment Accumulation Lower a dipstick tube equipped with a ball valve (e.g. Sludge Judge or similar device) into Aqua-SwirlTM through the service access provided. Measure the depth of the sludge. At a maximum, the sludge should not exceed 36" depth before maintenance. See Figures 1 and 2. 36" Figure 1 Figure 2 Site and Owner Information Aqua-Swirl TM Inspection Maintenance Items Operation, Maintenance, and Inspection Manual for BMP Owners Miller Auto Care Aqua-SwirlTM O and M Manual Page 1 Diversion Structures If an external diversion structure is present on the site, this should be inspected for the following items. 1. Inspect weir or other structure for structural decay or damage. Weirs are more susceptible to damage than off-set piping and should be checked to confirm that they are not crumbling or decaying. 2. Inspect diversion structure and by-pass piping for signs of structural damage or blockage from debris or sediment accumulation. 3. Measure elevations on diversion weir or piping to ensure it is consistent with site plan design. 4. Inspect downstream structure in diversion system for signs of blockage or structural failure. Remove sediments, oils and other floatable pollutants with a vactor. Dispose of all waste in accordance with City of Indianapolis and any applicable state, and/or federal requirements. Oil should be pumped and removed with any liquids and sediments that have been trapped in the system. These liquids should be taken to an industrial waste water treatment facility for treatment. Liquids and solids pumped from the AquaSwirlTM should not be dumped back into the stormwater system or into a sanitary sewer. Figure 3 Note: The AquaSwirlTM is designed so that entry to the system is not necessary for inspection or maintenance. If, however, you wish to enter the system, this is an OSHA confined space entry and OSHA confined space entry procedures should be followed to enter the system. During Construction Inspect the AquaSwirlTM every three months (minimum) and clean the system as needed. The AquaSwirlTM should be inspected and cleaned at the end of construction regardless of whether it has reached its sediment or oil storage capacity. First Year Post-Construction Inspect the AquaSwirlTM every six months and clean the system as needed. Inspect and clean the system at least once bi-annually regardless of whether it has reached its sediment or floatable pollutant storage capa Second and Subsequent Years Post-Construction If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Constructio the system can be inspected once annually and cleaned as need or bi-annually at a minimu If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction, the system should be inspected once every six months and cleaned as needed. The AquaSwirlTM should be cleaned at least bi-annually regardless of whether it reaches its sediment or floatable pollutant capac Bypass Structures Bypass structures should be inspected whenever the AquaSwirlTM is inspected and maintained as needed. Cleaning Inspection (continued) Maintenance Schedule Aqua-SwirlTM O and M Manual Page 2 Company Name: Street Address: City, State, Zip: Contact: Office Phone: Mobile Phone: Pager: Date of cleaning: (Next inspection should be 3 months from this date for the first year). Time of cleaning: Date of next inspection: Floatable debris present (Y/N)? Oil present (Y/N)? Oil depth (inches): Any structural damage? Y N Where? Any evidence of structural wear? Y N Where? Odors present? Y N Describe: Any plugging? Y N Describe: Activity Log Structural Conditions and Comments Maintenance Company Information Aqua-SwirlTM O and M Manual Page 3 Additional Comments and/or Actions to Be Taken Time Frame NOTES: 1. Attach site plan showing Aqua-SwirlTM location. 2. Attach detail drawing showing Aqua-SwirlTM dimensions and model number. 3. If a diversion structure is used, attached details showing basic design and elevations. NOTES Aqua-SwirlTM O and M Manual Page 4 Date Construction Started: Date Construction Ended: Activity 123456789101112 Inspect and Clean as Needed XXX X Inspect Bypass Structures XXX X (if applicable) and Maintain As Needed Clean System*X* * The AquaSwirlTM should be cleaned once a year regardless of whether it has reached full pollutant storage capacity during the construction phase of the project. Activity 123456789101112 Inspect and Clean as Needed XX Inspect Bypass Structures XX (if applicable) and Maintain As Needed Clean System*X* * The AquaSwirlTM should be cleaned at the end of the first year post construction if it is at or near its pollutant storage capcacity. Otherwise, the system can be cleaned at a later date depending on how quickly the sediment starts to harden. Activity 123456789101112 Inspect and Clean as Needed*XX Inspect Bypass Structures*XX (if applicable) and Maintain As Needed Clean System* *If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction, the system can be inspected once annually. If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction, the system should be inspected as frequently as past history warrants and cleaned as needed. Regardless of whether the AquaSwirlTM reaches full sediment or floatable storage capacity, it should be cleaned frequently enough to prevent captured sediments from hardening. Normally, cleaning once every two to three years should be sufficient to prevent sediments from hardening. *The bypass system should be inspected with each AquaSwirlTM inspection and maintained as needed. Second and Subsequent Years Post-Construction Month During Construction Month First Year Post-Construction Month Aqua-Swirl TM TABULAR MAINTENANCE SCHEDULE Aqua-SwirlTM O and M Manual Page 5 PROPOSEDBUILDING(8,895 SFT)COOL CREEK BLVD. E.B.BMP LOCATION MAPMILLER AUTO CARECARMEL, INJULY 20200'SCALE: 1" = GRAPHIC SCALE25'50'75'50' ™ Phone (888) 344-9044 Fax (423) 826-2112STORMWATER TREATMENT SOLUTIONS www.aquashieldinc.comAqua-Swirl Concentrator Model AS-6 BYP PCS Standard DetailAS-6 PCS STD01/06/15Scale:Drawn By:Document:Date:JCW1:20U.S. Patent No. 6524473 and other Patent PendingBackfill shall extend at least 18inches [457 mm] outward fromSwirl Concentrator and for thefull height of the SwirlConcentrator (including riser)extending laterally toundisturbed soils. (See MHDetail Below)STORMWATER TREATMENT SOLUTIONSPhone (888) 344-9044 www.aquashieldinc.com™InternalBafflesSlide riser over top ringand bolt in 4 placesRiser68" [1727 mm]104"[2896 mm]to116" [2946 mm]Swirl Inlet/OutletBeddingUndisturbed SoilBackfill6" [152 mm]18" [457 mm]Section A-AGrade (Rim)30" [762 mm]Rim elevations to match finishedgrade.Manhole Frame andCover by Manufacturer.(See Details)5" [127 mm] MH FrameVariesVariesPlan View84" [2134 mm]84" [2134 mm]OutletAInternal BafflesOctagonal Base PlatePipe couplingby Contractor.12" [305 mm]long Stub-outby Manufacturer.Ø72" [Ø1829 mm]4 1/2" [114 mm]1/2" [13 mm]1" [25 mm]Manhole Frame & Cover DetailNTSFor Non-Traffic Areas OnlySoil1" [25 mm]Unless other traffic barriers are present,bollards shall be placed around access riser(s)in non-traffic areas to prevent inadvertentloading by maintenance vehicles.SoilPlace small amount ofconcrete [3,000 psi [20MPa] (min)] to supportand level manhole frame.DO NOT allow manholeframe to rest upon riser.RiserFrameCover48" [1219 mm] Min.12" [305 mm]Wrap Compressible ExpansionJoint Material to a minimum1-inch [25 mm] thickness aroundtop of riser to allow transfer ofinadvertent loading frommanhole cover to concrete slab.Backfill (90%Proctor Density)ConcreteConcrete8" [203 mm]Gravel BackfillGravel Backfill4 1/2"CoverFrame1" [25 mm] ThickExpansion JointMaterial30" [762 mm]Riser#4 [13 mm] Rebar@ 6" [152 mm]Each Way14"1/2"3,000 psi [20 MPa](min) ConcreteManhole Frame & Cover DetailFor Traffic Loading AreasNTSIf traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m]diameter, 14-inch [356 mm] thick reinforced concrete pad must beplaced over the Stormwater Treatment System Riser to support andlevel the manhole frame, as shown. The top of riser pipe must bewrapped with compressible expansion joint material to a minimum1-inch [25 mm] thickness to allow transfer of wheel loads frommanhole cover to concrete slab. Manhole cover shall bear on concreteslab and not on riser pipe. The concrete slab shall have a minimumstrength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm]reinforcing steel as shown. Minimum cover over reinforcing steel shallbe 1-inch [25 mm]. Top of manhole cover and concrete slab shall belevel with finish grade.Backfill (90%Proctor Density)48"Aqua-Swirl Polymer Coated Steel (PCS)Stormwater Treatment SystemAInlet36"[914 mm] PCS Max2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343* Please see accompanied Aqua-Swirl specification notes.* See Site Plan for actual system orientation.** Orientation may vary from 90°, 180°, or custom angles to meet site conditions.Note: As an alternative, 42-inch OD, HS-20/25rated precast concrete rings may be substituted.14-inch thickness must be maintained.180°** STORMTECH DETENTION CHAMBER STORMTECH SC-74 0 CHAMBER (not to scale) 1RPLQDO&KDPEHU6SHFLÀFDWLRQV Size (L x W x H) 85.4” x 51” x 30” 2,170 mm x 1 ,295 mm x 762 mm &KDPEHU6WRUDJH 45.9 ft3 (1.30 m3) 0LQ,QVWDOOHG6WRUDJH 74.9 ft3 (2.12 m3) :HLJKW 74.0 lbs (33.6 kg) 6KLSSLQJ 30 chambers/pallet 60 end caps/pallet 12 pallets/truck *Assumes 6” (150 mm) stone above, below and between chambers and 40% stone porosity. 18" (450 mm) MIN* 8' (2.4 m) MAX 51" (1295 mm) 6" (150 mm) MIN 6" (150 mm) MIN 12" (300 mm) TYP 30" (760 mm) DEPTH OF STONE TO BE DETERMINED BY SITE DESIGN ENGINEER 6" (150 mm) MIN 12" (300 mm) MIN SITE DESIGN ENGINEER IS RESPONSIBLE FOR THE ENSURING THE REQUIRED BEARING CAPACITY OF SUBGRADE SOILS PAVEMENT LAYER (DESIGNED BY SITE DESIGN ENGINEER) CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS". GRANULAR WELL-GRADED SOIL/AGGREGATE MIXTURES, <35% FINES, COMPACT IN 6" (150 mm) MAX LIFTS TO 95% PROCTOR DENSITY. SEE THE TABLE OF ACCEPTABLE FILL MATERIALS. ADS GEOSYTHETICS 601T NON-WOVEN GEOTEXTILE ALL AROUND CLEAN, CRUSHED, ANGULAR EMBEDMENT STONE CHAMBERS SHALL MEET THE REQUIREMENTS FOR ASTM F2418 POLYPROPLENE (PP) CHAMBERS OR ASTM F922 POLYETHYLENE (PE) CHAMBERS EMBEDMENT STONE SHALL BE A CLEAN, CRUSHED AND ANGULAR STONE WITH AN AASHTO M43 DESIGNATION BETWEEN #3 AND #57 PERIMETER STONE EXCAVATION WALL (CAN BE SLOPED OR VERTICAL) SC-740 END CAP *MINIMUM COVER TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR, INCREASE COVER TO 24" (600 mm). STORMTECH SC-740 CHAMBER Designed to meet the most stringent industry performance standards for superior structural integrity while providing designers with a cost-effective method to save valuable land and protect water resources. The StormTech system is designed primarily to be used under parking lots, thus maximizing land usage for private (commercial) and public applications. StormTech chambers can also be used in conjunction with Green Infrastructure, thus enhancing the performance and extending the service life of these practices.