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HomeMy WebLinkAboutO&M Manual Stormwater Operations and Maintenance Manual Tempo By Hilton – Clay Terrace Carmel, Indiana 46032 Prepared for: Washington Prime Group Inc. 111 Monument Circle, Suite 3500 Indianapolis, IN 46204 Prepared by: Kimley-Horn and Associates, Inc. 250 East 96th Street, Suite 580 Indianapolis, Indiana 46240 Contact: Mike Timko, P.E. I affirm, under penalties for perjury, that I have taken reasonable care to redact each Social Security number in this document, unless required by law. – Mike Timko Prepared on: July 20, 2022 Revised on: December 8, 2022 2 Water Quality BMPs Water Quality Best Management Practices (BMPs) are vegetative, structural, and other measures that reduce or eliminate pollutants that might otherwise be carried by surface runoff. Potential pollutant sources include spills from the litter from patrons and automobile fluids on the pavement including heavy metals, oil, grease, and alcohols. BMP Owner Contact Information Name: Washington Prime Group Inc. Address: 111 Monument Circle, Suite 3500, Indianapolis, IN 46204 Business Phone Number: 616-621-9000 Party Responsible Routine inspections are the responsibility of the BMP owner. Maintenance is also the responsibility of the owner. The BMP owner shall be financially responsible for any maintenance or repairs required by the City or its representatives during the City’s inspections. The approved maintenance plan and inspection forms provided with this manual should be used as guidance for performing maintenance activities. The City will require yearly inspection reports of the water quality BMPs. The first will be due one year after the Notice of Termination is submitted. Right of Entry The City of Carmel has the right to enter the subject property to inspect the pond, BMPs, and storm sewer. Water Quality BMPs Description Stormwater runoff from the site will sheet flow to the proposed and existing storm structures and storm sewer that discharges to the existing north pond. There is an existing wet pond on the north side of the site that detains the project area. The north pond discharges to the East through an existing outlet control structure. The storm structures, Aqua-swirl Xcelerator unit, storm sewer pipes, pond aerator, and the existing wet pond will need to be inspected and maintained per the requirements below. 3 Storm Structure Maintenance and Inspection Storm structures on site are identified in an exhibit in Appendix A. Storm structures are set at storm sewer pipe connections. Unless you have OSHA approved training and equipment, never enter a manhole. Inspection and maintenance of all storm structures is required per the table below. Storm Structure Maintenance and Inspection Inspection All inlet castings should be inspected every 6 months and after each major rainfall event. More frequent inspections should be performed in areas where there is higher potential for trash or litter and during the fall when leaves are present on the ground. Check the frame and lid for cracks and wear, such as rocking lids or lids moved by traffic. Storm structures and the surrounding areas should be inspected annually for pollutants such as leaks from dumpsters, minor spills, and oil dumping. Take action to have the pollutant source removed. Cleaning Clean structures when there is a blockage of a water flow path or when sediment depth reaches 10% of the pipe diameter. Cleaning should be performed in a way that ensures removed sediment and water is not discharged back into the storm sewer. Materials Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be disposed in the garbage as solid waste. Water should be disposed of in a sanitary sewer after oils are removed using oil absorbent materials or other mechanical means. Used oil absorbents should be recycled or disposed according to the manufacturer's instructions. Repairs Repair all security and access features so they are fully functional. This includes locking lids, covers, and ladder rungs. Replace broken parts or lids that rock or are moved by traffic. 4 Storm Sewer Maintenance and Inspection Storm sewer pipes convey stormwater. Pipes are built from many materials and are sometimes perforated to allow stormwater to infiltrate into the ground. Storm pipes are cleaned to remove sediment or blockages when problems are identified. Storm pipes must be clear of obstructions and breaks to prevent localized flooding. Storm sewer maintenance and inspection required per the table below. Storm Sewer Maintenance and Inspection Inspection Pipes are difficult to inspect requiring special equipment and training. Usually, if a problem occurs the owner needs to call a sewer or plumbing contractor to inspect, repair or clean pipelines. Cleaning Clean pipes when sediment depth is greater than 10% of the pipe diameter. When cleaning a pipe, minimize sediment and debris discharges from pipes to the storm sewer. Install downstream debris traps (where applicable) before cleaning and then remove material. Generally, use mechanical methods to remove root obstructions from inside storm sewer pipes. Do not put root-dissolving chemicals in storm sewer pipes. If there is a problem, remove the vegetation over the line. Materials Handling Sediment and debris from pipes should be disposed in the garbage as solid waste. Pick out any rocks first. Repairs Repair or replace pipes when a dent or break closes more than 20 percent of the pipe diameter. Repair or replace pipes damaged by deterioration. Wet Detention Basin Maintenance and Inspection The existing wet ponds intercept stormwater runoff from the site before discharging to the East. The runoff from the site is treated by the existing ponds which also control the volume of runoff released from the site. Maintenance is necessary for a stormwater pond to operate as designed on a long-term basis. The pollutant removal, channel protection and flood control capabilities of the pond will decrease if permanent pool elevations fluctuate, debris blocks the outlet structure, pipes are damaged, sediment accumulates in the pond and reduces the storage volume, slope stabilizing vegetation is lost, or the structural integrity of the embankment or rise is compromised. The pond should be inspected and maintained once per year and after every large rain invent. An inspection checklist can be found in the Appendix. AquaSwirl Structure An Aqua-Swirl XceleratorTM is a vortex-type hydrodynamic separator that removes pollutants from stormwater. These pollutants include anything that is significantly heavier or lighter than water. Such pollutants include sediment and oil from parking lots, Styrofoam cups and food packaging, cigarette 5 butts, and other debris. The AquaSwirlTM will also remove any heavy metals or nutrients (phosphorous and nitrates) that will bond to the sediment and organic material that the AquaSwirlTM removes. The AquaSwirlTM is a one-piece plastic, or Fiberglass Re-enforced Plastic (FRP), structure that includes a cast iron frame and cover. The cover of the AquaSwirlTM has the company logo on it to make it easy to find for maintenance. The opening has a 30” diameter to provide easy access for maintenance from grade level. There should never be a need for someone to enter the AquaSwirlTM. It is designed so that inspection and maintenance can be easily conducted from grade level. Because AquaSwirl’s TM collect pollutants, they need to be inspected and cleaned periodically. In Carmel, Indiana the owner of the property, where an AquaSwirlTM is installed, is responsible for maintaining the system and the associated cost. Pond Aerator Pond aerators are designed to move large volumes of water from near the pond bottom to the surface where it spreads out in contact with the air and becomes oxygenated. Water movement is created by millions of tiny air bubbles being emitted that rise and move water with them. Pond aerators break up thermal stratification throughout the water column allowing the entire water column to be oxygenated and eliminating highs and lows in both temperature and oxygen levels. If the size or appearance of the surface aeration has decreased from initial installation, the system may need maintenance. Refer to Appendix B for the Lake Bed Aeration Installation and Owner’s Manual for maintenance requirements. 6 List of Attachments Attachment A: O&M Exhibit – BMP Site Map Attachment B: Inspection and Maintenance Checklists Attachment C: Aqua-Swirl Details Attachment D: BMP Owner Acknowledgement Agreement 7 Attachment A – O&M Exhibit DRO P OFF DECEMBER 8, 2022 O&M EXHIBIT SITE EXHIBIT CLAY TERRACE, CARMEL, IN 0'20'10'40'60'NORTH 8 Attachment B – Inspection and Maintenance Checklist © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Aqua-Swirl® XCelerator Stormwater Treatment System Inspection and Maintenance Manual for New Jersey Department of Environmental Protection (NJDEP) AquaShieldTM, Inc. 2733 Kanasita Drive Suite 111 Chattanooga, TN 37343 Toll free (888) 344-9044 Phone: (423) 870-8888 Fax: (423) 826-2112 Email: info@aquashieldinc.com www.aquashieldinc.com © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Floatable trash & debris in the Aqua-Swirl® Aqua-Swirl® XCelerator Stormwater Treatment System The Aqua-Swirl® XCelerator Stormwater Treatment System (Aqua-Swirl® XCelerator) is a vortex-type hydrodynamic separator designed and supplied by AquaShieldTM, Inc. (AquaShieldTM). Aqua-Swirl® XCelerator technology removes pollutants including suspended solids, debris, and floatables from stormwater runoff. Both treatment and storage are accomplished in the single swirl chamber without the use of multiple or hidden, blind access chambers. System Operation The treatment operation begins when stormwater enters the Aqua-Swirl® XCelerator through a tangential inlet pipe that produces a circular (or vortex) flow pattern that causes contaminates to settle to the base of the unit. Since stormwater flow is intermittent by nature, the Aqua-Swirl® XCelerator retains water between storm events providing both dynamic and quiescent settling of solids. The dynamic settling occurs during each storm event while the quiescent settling takes place between successive storms. A combination of gravitational and hydrodynamic drag forces encourages the solids to drop out of the flow and migrate to the center of the chamber where velocities are the lowest. © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Aqua-Swirl® XCelerator System Maintenance The long term performance of any stormwater treatment structure, including manufactured or land based systems, depends on a consistent maintenance plan. Inspection and maintenance functions are simple and easy for the Aqua-Swirl® XCelerator allowing all inspections to be performed from the surface. It is important that a routine inspection and maintenance program be established for each unit based on: (a) the volume or load of the contaminants of concern, (b) the frequency of releases of contaminants at the facility or location, and (c) the nature of the area being drained. In order to ensure that our systems are being maintained properly, AquaShieldTM offers a maintenance solution to all of our customers. We will arrange to have maintenance performed. Inspection The Aqua-Swirl® XCelerator can be inspected from the surface, eliminating the need to enter the system to determine when cleanout should be performed. In most cases, AquaShieldTM recommends a quarterly inspection during construction and for the first year of operation to develop an appropriate schedule of maintenance. The Aqua-Swirl® XCelerator should be inspected and cleaned at the end of construction regardless of whether it has reached its sediment storage capacity and/or other captured materials. Based on experience of the system’s first year in operation, we recommend that the inspection schedule be revised to reflect the site-specific conditions encountered. Typically, the inspection schedule for subsequent years is once per year. Maintenance The Aqua-Swirl® XCelerator has been designed to minimize and simplify the inspection and maintenance process. The single chamber system can be inspected and maintained entirely from the surface thereby eliminating the need for confined space entry. Furthermore, the entire structure (specifically, the floor) is accessible for visual inspection from the surface. There are no areas of the structure that are blocked from visual inspection or periodic cleaning. Inspection of any floatable debris can be directly observed and maintained through the manhole access provided directly over the swirl chamber. Inspection Procedure To inspect the Aqua-Swirl® XCelerator, a hook is typically needed to remove the manhole cover. AquaShieldTM provides a customized manhole cover with our distinctive logo to make it easy for maintenance crews to locate the system in the field. We also provide a permanent metal © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Sediment inspection using a stadia rod information plate affixed inside the access riser which provides our contact information, the Aqua-Swirl® XCelerator model size, and serial number. The only tools needed to inspect the Aqua-Swirl® XCelerator system are a flashlight and a measuring device such as a stadia rod or pole. Given the easy and direct accessibility provided, floating trash and debris can be observed directly from the surface. Sediment depths can easily be determined by lowering a measuring device to the top of the sediment pile a nd to the surface of the water. AquaShieldTM recommends that the units be cleaned when sediment depth reaches 6 inches, representing 50% sediment storage capacity. The full sediment storage depth in the Aqua-Swirl® XCelerator is 12 inches. It should be noted that in order to avoid underestimating the volume of sediment in the chamber, the measuring device must be carefully lowered to the top of the sediment pile. Keep in mind that the finer sediment at the top of the pile may offer less resistance to the measuring device than the larger particles which typically occur deeper within the sediment pile. Aqua-Swirl® XCelerator Cleanout Procedure Cleaning the Aqua-Swirl® XCelerator is simple and quick. Floatable trash debris can be observed and removed directly through the 30-inch service access riser provided. A vacuum truck is typically used to remove the accumulated sediment and debris. An advantage of the Aqua-Swirl® XCelerator design is that the entire sediment storage area can be reached with a vacuum hose from the surface reaching all the sides. Since there are no multiple or limited (blind) access chambers in the Aqua-Swirl® XCelerator there are no restrictions to impede on-site maintenance tasks. 42-48” © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Vacuum (vactor) truck quickly cleans the single open access swirl chamber Disposal of Recovered Materials AquaShieldTM recommends that all maintenance activities be performed in accordance with appropriate health and safety practices for the tasks and equipment being used. AquaShieldTM also recommends that all materials removed from the Aqua-Swirl® XCelerator and any external structures (e.g, bypass features) be handled and disposed in full accordance with any applicable local and state requirements. Aqua-Swirl® XCelerator Inspection and Maintenance Work Sheets on following pages © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Aqua-Swirl® XCelerator Inspection and Maintenance Manual Work Sheets SITE and OWNER INFORMATION Site Name: Site Location: Date: Time: Inspector Name: Inspector Company: Phone #: Owner Name: Owner Address: Owner Phone #: Emergency Phone #: INSPECTIONS I. Floatable Trash and Debris 1. Remove manhole lid to expose liquid surface of the Aqua-Swirl® XCelerator. 2. Remove floatable debris with basket or net if any present. II. Sediment Accumulation 1. Lower measuring device (e.g. stadia rod) into swirl chamber through service access provided until top of sediment pile is reached. 2. Record distance to top of sediment pile from top of standing water: inches. 3. Maximum recommended sediment depth prior to cleanout is 12 inches for all models. Consult system shop drawing for treatment chamber depth as measured from the inlet pipe invert to base of the unit. III. Diversion Structures (External Bypass Features) If a diversion (external bypass) configuration is present, it should be inspected as follows: 1. Inspect weir or other bypass feature 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 (concrete or brick) or decaying (steel). 2. Inspect diversion structure and bypass piping for signs of structural damage or blockage from debris or sediment accumulation. 3. When feasible, measure elevations on diversion weir or piping to ensure it is consistent with site plan designs. © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 4. Inspect downstream (convergence) structure(s) for sign of blockage or structural failure as noted above. CLEANING Schedule cleaning with local vactor company or AquaShieldTM to remove sediment, trash, and other floatable pollutants. The captured material generally does not require special treatment or handling for disposal. Site-specific conditions or the presence of known contaminants may necessitate that appropriate actions be taken to clean and dispose of materials captured and retained by the Aqua-Swirl® XCelerator. All cleaning activities should be performed in accordance with property health and safety procedures. AquaShieldTM always recommends that all materials removed from the Aqua-Swirl® XCelerator during the maintenance process be handled and disposed in accordance with local and state environmental or other regulatory requirements. MAINTENANCE SCHEDULE I. During Construction Inspect the Aqua-Swirl® XCelerator every three (3) months and clean the system as needed. The Aqua-Swirl® XCelerator should be inspected and cleaned at the end of construction regardless of whether it has reached its maintenance trigger. II. First Year Post-Construction Inspect the unit(s) every three (3) months and clean the system as needed. Inspect and clean the system once annually regardless of whether it has reached its sediment or floatable pollutant storage capacity. III. Second and Subsequent Years Post-Construction If the system did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction period, the system can be inspected and cleaned once annually. If the Aqua-Swirl® XCelerator reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction period, the system should be inspected once every six (6) months and cleaned as needed. The unit should be cleaned annually regardless of whether it reaches its sediment or floatable pollutant capacity. IV. Bypass Structures Bypass structures should be inspected whenever the Aqua-Swirl® XCelerator is inspected. Maintenance should be performed on bypass structures as needed. © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 MAINTENANCE COMPANY INFORMATION Company Name: Street Address: City: State/Prov.: Zip/Postal Code: Contact: Title: Office Phone: Cell Phone: ACTIVITY LOG Date of Cleaning: (Next inspection should be 3 months from this data for first year). Time of Cleaning: Start: End: Date of Next Inspection: Floatable debris present: Yes No Notes: STRUCTURAL CONDITIONS and OBSERVATIONS Structural damage: Yes No Where: Structural wear: Yes No Where: Odors present: Yes No Describe: Clogging: Yes No Describe: Other Observations: © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 NOTES Additional Comments and/or Actions To Be Taken Time Frame ATTACHMENTS  Attach site plan showing Aqua-Swirl® XCelerator location.  Attach detail drawing showing Aqua-Swirl® XCelerator dimensions and model number.  If a diversion configuration is used, attach details showing basic design and elevations (where feasible). © AquaShieldTM, Inc. 2019. All rights reserved. Version_0419 Aqua-Swirl® XCelerator TABULAR MAINTENANCE SCHEDULE Date Construction Started: Date Construction Ended: During Construction Month Activity 1 2 3 4 5 6 7 8 9 10 11 12 Inspect and Clean as needed X X X X Inspect Bypass and maintain as needed X X X X Clean System* X* * The Aqua-Swirl® XCelerator should be cleaned once a year regardless of whether it has reached full pollutant storage capacity. In addition, the system should be cleaned at the end of construction regardless of whether it has reach full pollutant storage capacity. First Year Post-Construction Month Activity 1 2 3 4 5 6 7 8 9 10 11 12 Inspect and Clean as needed X X X X Inspect Bypass and maintain as needed X X X X Clean System* X* * The Aqua-Swirl® XCelerator should be cleaned once a year regardless of whether it has reached full pollutant storage capacity. Second and Subsequent Years Post-Construction Month Activity 1 2 3 4 5 6 7 8 9 10 11 12 Inspect and Clean as needed X* Inspect Bypass, maintain as needed X* Clean System* X* * If the Aqua-Swirl® XCelerator did not reach full sediment or floatable pollutant capacity in the First Year Post - Construction period, the system can be inspected and cleaned once annually. If the Aqua-Swirl® XCelerator reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction period, the system should be inspected once every six (6) months or more frequently if past history warrants, and cleaned as needed. The system should be cleaned annually regardless of whether it reaches its full sediment or floatable pollutant capacity. Detention Pond Operation, Maintenance, and Management Inspection Checklist Project: Location: Date: Time: Ins pector: Title: Signature: Maintenance Item Satisfa ctory/ Unsatis fa ctory Comm ents 1 . Em ba nkm e nt and em er genc y spillw a y He alth y veg eta tio n with a t lea s t 85 % groun d co ve r. No s ig ns o f eros i o n o n e m b an km ent. No ani m a l bu rro ws . Em ban km en t is free o f cra cki ng , bu lgi n g, or s liding. Em ban km en t is free o f woo dy ve g etatio n. Em ban km en t is free o f l ea ks o r s eep s Em erg e n cy s pil lw ay is cle ar of ob s tructio ns . Vertica l/ho ri zon tal a lign m e nt o f top of d a m “As Built” 2 . Ris e r and princ ipal s pillw ay L ow flo w ou tlet fre e o f ob s tru cti on . Tras h rack is not blocked o r d am ag ed. Ri s er i s fre e o f exces s ive s ed i m e nt b uil d up Ou tlet p ipe i s in g o o d co ndition. Co ntro l valve is op era tion al Ou tfall ch an nels are s table a n d free o f s couring . Ma inte nanc e Item Satisfactory/ Uns atisfactory Com me nts 3. Per manent Pool (W e t Ponds) N o Evidence of unde s irabl e vegetation N o a ccu m ulation o f fl oatin g or floatable Debris N o e viden ce of s horelin e s cou r or eros i on 4. Sedime nt Foreba ys Sedim ent i s being colle cted by forebay(s ) Forebay i s not i n need of cleanout (l es s than 50% full) 6. Condition of Outfa ll into Ponds N o riprap failures N o eviden ce o f s lope eros ion o r s cou ri ng Storm drain p ipes are i n good condi tion , wit h no e vidence o f non-s to rm wate r dis ch arges Endwalls /Headwalls are i n g ood condition (800) 377-0019 (815) 664-4901 info@aquacontrol.com aquacontrol.com Aqua Control® Revised 2019-09-01© 2019 Aqua Control, Inc. Lake Bed Aeration Please read these instructions before using this aeration system. Failure to follow the recommendations in this manual will void the manufacturer’s warranty and may result in personal injury or death. An improper electrical connection to the lake bed aerator system and grounding conductor can result in electrical shock, injury, or death. For maximum safety, it is highly recommended that a Ground Fault Circuit Interrupter (GFCI) protected circuit is used for the power supply. Always connect the aeration compressor cabinet to a properly grounded outlet. If your outlet is questionable, have it checked by a qualified electrician. The 120 V cabinets have a ground fault interrupter (GFCI) outlet. Use of an aeration system in a water body during freezing conditions may cause large holes in the ice. The ice around these areas is extremely thin. Injury or death may result if people fall through the ice in these locations. Aqua Control strongly recommends that these areas and the associated dangers be clearly posted in multiple locations around the body of water. The owner will assume all responsibility for using the Aqua Control aeration system during the winter months. Safety First Aeration Expectations • Install the compressor cabinet at a safe distance from flooding and out of standing water areas. • Keep the compressor cabinet at a safe distance from direct contact with irrigation or sprinkler heads. • Unplug the electrical cord from the outlet prior to any maintenance. • Do not attempt any unspecified activity that is not listed in this manual or directly requested by an authorized Aqua Control representative or distributor. • Do not operate the aeration system if unusual noises or odors are detected. Disconnect the power cord from outlet and contact your distributor to correct any problems. • This appliance is not intended for use by young children or infirm persons unless they have be adequately supervised by a responsible person to ensure that they can use the appliance safely. Children should be supervised to ensure that they do not play with the appliance. • Refer to these directions as needed in order to ensure the safe operation of the system. • Failure to follow these instructions will void the warranty and could result in injury or death. • Stabilize and improve oxygen levels from the surface of water body to the bottom. • Consistent temperature from the surface of the water body to the bottom. • Reduction of bottom oxygen-depleting muck and foul odors. • An increased area for healthy, aerobic bacteria growth. • Elimination of oxygen-related fish kills. Warning Installation and Owner’s Manual 120 V/240 V 60 Hz North American Model 220-240 V 50 Hz European/Australian Model 2 — Aqua Control, Inc. Lake Bed Aeration Initial Inspection Open and Inspect Product Immediately Upon Receiving Your Order Product Damaged in Delivery The Aqua Control Aeration System was properly packed and accepted by the freight carrier for shipment. It is their responsibility to deliver they system in perfect condition. Apparent Damage or Loss If upon delivery, the equipment or container indicates “Damage in Transit,” such goods should be refused until the freight company’s agent has noted such damage on the freight bill. A copy of this bill should be given to you, noting the nature and extent of the damage. If any part of the shipment is lost in transit, have that shortage noted on the freight bill by the shipping agent. Concealed Damage If damage is discovered that was not apparent upon delivery, notify the freight company immediately to inspect the damaged equipment. The inspector should provide a “Concealed Bad Order” report. Inspections must be requested within seven days of delivery. Do not move damaged goods from the original point of delivery. Retain all original packaging/containers for inspection. File a “Full Value Replacement” claim against the freight company. Maintenance Safety Only use parts that are supplied or approved by Aqua Control. Use of other parts may result in poor performance that could create a hazardous situation and will void the warranty. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or a similarly qualified person in order to avoid a hazard. • When compressor fan, outlet, or other electrical components need service. • If the cabinet is producing unusual noises or odors. • After any accidental flooding prior to start-up. Unplug the system and refer servicing to a qualified electrician for any of the following conditions: Ground Instructions This product must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This product is equipped with a cord having a grounding wire with an appropriate grounding plug. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances. WARNING—Improper installation of the grounding plug can result in electric shock. When repair or replacement of the cord or plug is required, do not connect the grounding wire to either flat blade terminal. The wire with insulation having an outer surface that is green with or without yellow strips is the grounding wire. Check with a qualified electrician or service person when the grounding instructions are not completely understood or when in doubt as to whether the product is properly grounded. Do not modify the plug provided. If it does not fit the outlet, have the proper outlet installed by a qualified electrician. Only connect the product to an outlet having the same configuration as the plug. Do not use an adapter with this product. Systems Materials List Upon receipt, inspect to ensure that all of the components are included. If your aeration system has experienced damage from shipping, promptly report the damage to the delivery company. Verify that you have received the following equipment: • Compressor(s): Located inside the cabinet. The compressor is 115 V or 230 V single phase and includes a power cord with a three-pronged plug that should be plugged into a Class A GFCI receptacle box. • Airpod Diffuser Base: Flexible membrane tube or disc diffuser(s) are mounted on their own base that is weighted at the factory for easy sinking and installation. Aqua Control, Inc. — 3 Lake Bed Aeration • AnchorLine Self-Weighted Air Supply Tubing: Used to supply air from the shore-mounted compressor to the diffuser pad(s), it runs along the pond or lake bottom and can be buried or left exposed. Made of a high-density PVC composite, it is compatible with included insert fittings and common PVC glue. Heavy wall thickness provides protection from punctures or kinking. • Remote Manifold (Optional): Used when the LBA compressor is located long distances from the water’s edge. This remote manifold allows a single 1”–1½” underground line to feed up to 6 AirPod diffusers. • Heavy duty polymer base (AirPro only) Installation Tools and Materials • Thin, nylon rope (length needs to be twice the depth of the pond) • Utility razor knife • Flat head screwdriver • Shovel (if self-weighted tubing is buried prior to entering the pond) For quick, easy, and professional installations, the following tools and materials are required: Compressor/Cabinet Installation • Find a location for the cabinet that is near the pond and out of the flood zone. • Remove the cabinet from the shipping container and place on desired location. The diffuser comes partially assembled for you. You will need to complete the following steps: Airpod Diffuser Assembly • Hand-tighten all fittings, do not over-tighten • Screw in 6” riser tubes • Screw on four membrane diffuser tubes (or two membrane disc diffusers) to the 6” riser tubes Airpod Diffuser Placement IMPORTANT—Correct placement of the diffuser is critical. The ability of the aeration system to affect your pond/lake is dependent upon the position of the diffuser. It should be as close to the deepest portion of the pond. It is not recommended for the self-weighted tubing to be attached to the compressor prior to installing all of the tubing for each diffuser. Attaching to the tubing to the compressor and then placing the tubing in the pond may place excessive stress on the compressor and the connectors. 1. Uncoil the roll of self-weighted tubing along the shoreline of your pond. Make sure the tubing has no twists, kinks, or tangles. For lengths exceeding 100 ft. (30 m), multiple rolls of tubing must be connected with the factory supplied, double-ended hose barbs and clamps. In some installs, it may be preferable to unroll only one roll of tubing at a time and place additional rolls in a boat. 2. Anchor one end of the tubing to a location near the compressor. Do not attach tubing to the compressor at this time. 3. Attach each roll of tubing using the double-ended hose barbs and clamps until the diffuser placement site has been reached. If necessary, plug the end of the tubing to avoid water entering the tubing and attach a float to the end of the tubing for ease of locating to continue installation (plugs not included). 4. Once all of the rolls of self-weighted tubing are installed, attached the tubing to the hose barb on the diffuser. 5. Locate the two holes at the end of the diffuser opposite the check valve/hose barb assembly. Thread rope through these two holes and center the rope. This rope will be used to lower each diffuser to the pond bottom. The minimum rope length must be twice the depth of the water. Hold both ends of the rope and lower the diffuser to the bottom, keeping the top of the diffuser (where the membranes are located) upright. When the diffuser is positioned on the pond bottom, release one end of the rope and pull the rope up. 6. Repeat steps 1-5 for each diffuser. 7. Once the diffusers are placed on the bottom of the pond/lake, attach the anchored end of the self-weighted tubing to the compressor. 8. You may test each diffuser individually upon installation. At least two valves at the compressor cabinet should be 4 — Aqua Control, Inc. Lake Bed Aeration at least partially open to ensure that excessive pressure is not sent to the diffuser being tested. This could result in damage to the tube membranes. 9. The tubing may be buried in a trench and/or cover with rocks or dirt. For winter operation in freezing conditions, the self-weighted tubing on the shore must be buried below the frost line and the exposed compressor hose must be insulated with hot water heater pipe insulation. If the self-weighted tubing is not buried below the frost line, it must run downhill without any drips. Atmospheric air contains water and as it compresses during winter, it will enter the exposed tubing. If there are and dips in the line, the water will pool and eventually freeze, blocking the air supply line completely. System Start-Up Procedure • Day 1: Turn on the system and operate for 15 minutes. • Day 2: Turn on the system and operate for 30 minutes. • Day 3: Turn on the system and operate for 1 hour. • Day 4: Turn on the system and operate for 2 hours. • Day 5: Turn on the system and operate for 4 hours. • Day 6: Turn on the system and operate for 8 hours. • Day 7: Turn on the system and operate for 16 hours. • Day 8: Turn on the system and let it run continuously. • If a strong odor emanates from the body of water, turn unit off immediately and wait 24 hours before starting the procedure again, this time in five minute increments. The purpose of the Lake Bed Aeration System is to circulate the pond’s entire water column. This circulation will increase and maintain oxygen levels and eliminate drastic temperature fluctuations. The efficiency of the AirEco/AirPro can initially create problems if the following start-up procedure is not followed. Improper start-up may result in an unintentional fish kill. Winter Operation and Precautions • Operating in freezing conditions on an ice-covered pond may cause large open water areas to remain at the aeration sites. In addition, the ice thickness around these open areas will be much thinner than the ice over the remainder of the water body. Injury or fatality may result from people, snowmobiles, etc. falling through the ice. Aqua Control strongly recommends that this danger of thin ice around the aeration area be clearly posted in several areas. Owner assumes all responsibility for operating aeration systems during winter months. • To prevent the risk of cooling the entire water column, the diffuser(s) should be moved to a shallower portion of the water body (typically one-half of the depth of the original placement) and operated there until spring thaw. Moving the diffuser to shallower water allows warmer water to remain in the lower regions of the pond and prevent the water from becoming too cold for fish. • The self-weighted tubing on shore must be buried below the frost line or insulated. Refer to #9 in the “Airpod Diffuser Placement” section for more information. The AirEco/AirPro System is designed to operate year-round. However, certain precautions will need to be taken during the winter months. DANGER—If you choose to operate your aeration system through the winter, be sure to follow these instructions for safe and proper operation: • Simply unplug the system. No other equipment preparation is required. • Before restarting the system in the spring, check th airlines for possible ice blockage. If this occurs, pour one cup of denatured alcohol into each line to melt the ice. Allow the air from the compressor to push through the line until heat generated by the compressor melts the remaining ice. • It will be necessary to follow the “System Start-Up Procedure” (see above) to prevent a possible fish kill. If you choose to turn off the system for the winter: Aqua Control, Inc. — 5 Lake Bed Aeration Timer Setting (AirPro models only) Remove the clear cover by pulling it straight out from the timer. Review the following instructions for proper operation. Maintenance and Troubleshooting Keep the cabinet air inlets and outlets free of debris and weed growth for proper ventilation. If the system does not power on: Press and reset the GFCI electrical receptacle located inside the cabinet. For AirPro models with timers: if the compressor(s) still won’t turn on, check that the timer is set correctly. If the timer is correctly set and the compressor(s) still won’t operate, flip up the white manual override toggle located ner the center-right on the timer. If it still won’t power on, contact your distributor or the factory for further assistance. Note: Before performing any of the following maintenance or troubleshooting, unplug the system from any power outlet. If the size or appearance of the surface aeration has decreased from initial installation, perform on or more of the following: The time switch is set by pushing the captive trippers to the outer rings position in (green) the Lake Bed Aerator will be turned on for that period. Each tripper represents 15 minutes. When they are on the inner position the Lake Bed Aerator will not turn on during these positions. Turn the minute hand (shown in red) clockwise until the current time is aligned with the triangle (shown in green) on the inner dial. The hour and the minute dial will show exactly the current time. Snap the clear cover back onto the timer. There are three positions for the power switch: Use timer settings mode Always on positon O position IN N E R DIAL 6 — Aqua Control, Inc. Lake Bed Aeration Air Filter Maintenance To remove the filter from the compressor: press down on the filter cap, rotate clockwise, and then pull the cap off. Inspect the filter element. Replace the elements if needed. It is recommended to replace the filter elements every three months. After installing new elements, replace the filter cap and power up the unit. Check Diffusers for Material Buildup or Damage The diffusers located on the airpod may have been damaged (wildlife and fishing hooks are the most common contributors to damage) or blocked by material buildup (after a long period of inactivity). Remove the airpod and inspect the membranes, making sure there are no rips or holes. Replace the membranes as needed. Maintenance Kit Maintenance kits are available by contacting your distributor or Aqua Control. Under optimal operating conditions, this step should be performed every two years. Capacitor Use a capacitor tester to verify the capacitor. The rating is printed on the side of the capacitor. Additional Questions If you have further questions regarding the operation of you lake bed aerator, please contact your distributor. You may also contact Aqua Control for sales, technical support, or general questions by calling (800) 377-0019 or emailing customerservice@aquacontrol.com. 9 Attachment C – Aqua-Swirl Details Plan View SCALE 1:40 Elevation View SCALE 1:40 Projected View SCALE 1:70 2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343 Phone (888) 344-9044 Fax (423) 826-2112 www.aquashieldinc.com Structure #: Drawn By: Scale: Date: OFlores Rvwed Rvw. Date U.S. Patent No. 6524473 and other Patent Pending Aqua-SwirlŠ XCelerator Standard Detail As Shown 2/25/2021 el. Varies Inlet/Outlet Invert el. Varies el. Varies Grade (Rim) el. Varies XC-7 CCW XC-7 STD Aqua-SwirlŠ Polymer Coated Steel (PCS) Stormwater Treatment System 12 in [305 mm] Manhole Frame & Cover Detail For Non-Traffic Areas Only NTS 48 in [1219 mm] Min. Gravel Backfill Concrete Wrap Compressible Expansion Joint Material to a minimum 1/2-inch [13 mm] thickness around top of riser to allow transfer of inadvertent loading from manhole cover to concrete slab. Riser Soil Cover Frame 1/2 in [13 mm] 1/2 in [13 mm] Place small amount of concrete [3,000 psi [20 MPa] (min)] to support and level manhole frame. DO NOT allow manhole frame to rest upon riser. Backfill (90% Proctor Density) 8 in [203 mm] 4 1/2 in [114 mm] Unless other traffic barriers are present, bollards shall be placed around access riser(s) in non-traffic areas to prevent inadvertent loading by maintenance vehicles. Manhole Frame & Cover Detail For Traffic Loading Areas NTS Cover Frame 48 in [1219 mm] Min. Backfill (90% Proctor Density) 3,000 psi [20 MPa] (min) Concrete #4 [13 mm] Rebar @ 6 in [152 mm] Each Way 30 in [762 mm] Riser 1/2 in [13 mm] 4 1/2 in [114 mm] 14 in [356 mm] 1/2 in [13 mm] Thick Expansion Joint Material If traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m] diameter, 14-inch [356 mm] thick reinforced concrete pad must be placed over the Stormwater Treatment System Riser to support and level the manhole frame, as shown. The top of riser pipe must be wrapped with compressible expansion joint material to a minimum 1/2-inch [13 mm] thickness to allow transfer of wheel loads from manhole cover to concrete slab. Manhole cover shall bear on concrete slab and not on riser pipe. The concrete slab shall have a minimum strength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm] reinforcing steel as shown. Minimum cover over reinforcing steel shall be 1-inch [25 mm]. Top of manhole cover and concrete slab shall be level with finish grade. Please see accompanied Aqua-SwirlŠ specification notes. See Site Plan for actual System orientation. Approximate dry (pick) weight: 3800 lbs [1700 kg]. Backfill shall extend at least 18 inches [457 mm] outward from Swirl Concentrator and for the full height of the Swirl Concentrator (including riser) extending laterally to undisturbed soils. (See MH Detail Below) 1 1 As an alternative, 42 in [1067 mm] diameter, HS-20/25 rated precast concrete rings may be substituted. 14 in [356 mm] thickness must be maintained. XC-7 inlet/outlet pipe size ranges up to 42 in [1067 mm]. XC-7 chamber height may vary up to 156 in [3962 mm], depending on inlet/outlet pipe size. Orientation may vary from a minimum of 90ƒ to a maximum of 180ƒ. Clockwise or counterclockwise orientation as needed. 2 3 3 2 102 in [2591 mm] 102 in [2591 mm] P42 in [P1067 mm] 2 Octagonal Base Plate P90 in [P2290 mm] 156 in [3962 mm] Varies Varies 5 [127 mm] MH Frame P30 in [P762 mm] Band Coupler by Manufacturer. (as needed) Riser Manhole Frame and Cover by Manufacturer. (See Details) Rim elevations to match finish grade. 90 in [2286 mm] Pipe coupling by Contractor. 12 in [305 mm] long Stub-out by Manufacturer. Pipe coupling by Contractor. 12 in [305 mm] long Stub-out by Manufacturer. 4 4 P90 in [P2286 mm] Optional inlet orientations available (See note 4) P42 in [P1067 mm] 180ƒ Backfill Bedding Undisturbed soil 18 in [457 mm] 6 in [152 mm] Lifting Lugs Lifting Lugs 10 Attachment D – BMP Owner Acknowledgment Agreement BMP 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: _____Aquaswirl (XC-7) _ __________________________ _____ _____Existing Wet Detention Ponds Aerator _______________________________ _____________________________ 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