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HomeMy WebLinkAboutO&M Manual OPERATIONS AND MAINTENANCE MANUAL For Detention and Storm Sewer Infrastructure at Islamic Life Center 14120 Shelborne Road Carmel, IN 46074 By Timothy M. Jensen, PE Veridus Group, Inc. 6280 N. Shadeland Ave, Suite A Indianapolis, IN 46220 August 1, 2021 Operations and Maintenance Manual Islamic Life Center 1 August 1, 2021 TABLE OF CONTENTS Background Required Inspection Required Maintenance Right-of-Entry Owner Contact & Agreement Operation, Maintenance and Inspection Guidelines Appendix Location Map Utility Plan Details Manuals Operations and Maintenance Manual Islamic Life Center 2 August 1, 2021 Background This manual will serve as an operations and maintenance guide for the storm water drainage infrastructure at Islamic Life Center located at 14120 Shelborne Road in Carmel, IN. The system includes a detention system with outlet structure, stormwater inlets and connected storm sewer piping on the site. The stormwater runoff will be conveyed by a proposed storm system, into the detention systems and BMP, and finally into the existing storm system West of the Site. The location of the detention basins, inlets, mechanical BMP, and pipe network are shown in the Appendix. The dry detention basin will collect, temporarily hold, and gradually release excess storm water from storm events. Vegetated swales are designed to reduce pollutants and sediment loads in storm water runoff. As stormwater runoff is conveyed through the swale, runoff velocity is greatly decreased allowing biofiltration (uptake of nutrients by plants), infiltration (percolation of water through the swale’s porous soil substrate), and sedimentation (settling out of later suspended particles). The Aqua-swirl BMP will be installed at the downstream end of the storm sewer system, prior to storm sewer outlet. The primary purpose of the BMP is to remove sediment, oils, and floatable debris from the stormwater prior to discharging from the site Required Inspections Every six months or after each ½” of rain event, inspection of the storm water components is necessary to check for failures, clogging, excess sediment or debris accumulation or any other condition that would require maintenance or repairs. An inspection form customized to the site is located in the Appendix. Areas to be inspected include: • Detention – outlet control structure. • Inlets • Pipes • BMP Required Maintenance Regular maintenance of the storm water system will be necessary to insure proper function. Regular maintenance includes the following: • Debris removal from inlet grates and BMP • Debris and sediment removal from storm sewer pipes • Debris and sediment removal from detention outlet control structures • Debris and sediment removal from downspouts Vegetated swales will require little maintenance if properly designed. Mow as needed during the growing seasons; inspect for erosion problems twice during the first year, annually thereafter, and remove sediment, trash, and debris annually or more frequently if needed. Operations and Maintenance Manual Islamic Life Center 3 August 1, 2021 Detention ponds should be inspected periodically as needed or at least every six months. Sediment shall be disposed of off site in accordance with all applicable laws. Areas that show sign of erosion shall be stabilized with erosion control blanket and/or seeds as necessary. Right-of-Entry City or County personnel have been granted access via the permit and City approval to allow inspection and maintenance of the stormwater BMPs if necessary. Operations and Maintenance Manual Islamic Life Center 4 August 1, 2021 Owner Contact & Agreement Islamic Life Center is responsible for the maintenance of the storm water system. 14120 Shelborne Road, Carmel, IN 46074 The Owner agrees to institute, maintain, and follow the water quality Best Management Practices (“BMPs”) and to follow and abide by the inspection schedule and maintenance activities listed in this Manual. The Owner also 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. Operations and Maintenance Manual Islamic Life Center 5 August 1, 2021 Inspection and Maintenance Forms for Owners Islamic Life Center 14120 Shelborne Road, Carmel, IN 46074 Site and Owner Information Site Name: Islamic Life Center Change in ownership since last inspection Y N Owner Name: Al Salam Foundation Owner Address: 14120 Shelborne Road Owner Phone Number: Location: Carmel, IN 46074 Date: Time: Inspector Name: Operations and Maintenance Manual Islamic Life Center 6 August 1, 2021 Maintenance Item Satisfactory? Y / N Comments 1. Catch Basins Inlet grate in place and free of excess debris Outlet pipe entrance free of excess debris 2. Dry Detention Pond Pond bottom clear, and free of debris Inspection port in place and free of excess debris Header row in place/connected to distribution row Header row free of excess debris Sump basin in place and free of excess debris Outlet control structure in place & no excess debris Outlet pipe is in good condition Embankment - Healthy vegetation with at least 85% ground cover 3. Pipes, Downspouts and Cleanouts Inspection area in place and free of excess debris Pump pipe to remove debris if necessary 4. Vegetated Swale Vegetation established and less than 6 inches Sediment accumulation less than 2 inches No evidence of erosion along banks or slope of swale Operations and Maintenance Manual Islamic Life Center 7 August 1, 2021 Appendix Location Map O&M Site Plan Details Landscape Specs Aquaswirl Manual Owner Agreement Operations and Maintenance Manual Islamic Life Center 8 August 1, 2021 Location Map Project Location Operations and Maintenance Manual Islamic Life Center 9 August 2, 2021 O&M Site Plan Operations and Maintenance Manual Islamic Life Center 10 August 1, 2021 Details Operations and Maintenance Manual Islamic Life Center 11 August 1, 2021 Operations and Maintenance Manual Islamic Life Center 12 August 1, 2021 Operations and Maintenance Manual Islamic Life Center 13 August 1, 2021 ISLAMIC LIFE CENTER NATIVE PLANTINGS 32 92 16 - 1 SECTION 329216 - NATIVE PLANTINGS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. This Section includes the fol lowing: a. Preparation b. Seeding c. Planting d. Seed Protection e. Waterf owl Exclusion f. Maintenance B. Related Sections include the following: 1. Division 2 Section "Earthwork" for excavation, filling and backfilling, and rough grading. 2. Division 32 Section “Turf and Grasses ” for installation of lawns. 1.3 SUBMITTALS A. Qualification Data: Document ation, proof and references for five (5) or more successful plant installations of native seeding. B. Planting Schedule: Indicating anticipated planting dates for each type of planting. C. Seed list and species and quantities of each type of seed. D. Maintenance Instructions: Recommended procedures to be established for maintenance of plantings during a calendar year. Submit before expiration of required maintenance periods. 1.4 QUALITY ASSURANCE A. Installer Qualifications: The submitting bidders shall be, and have been, actively and directly engaged in wetland plant installation for a period of two (2) or more years. Provide proof of five (5) or more successful plug installations. B. Pre-installation Conference: Conduct conference at Project s ite to comply with General Requirements. 1.5 SCHEDULING ISLAMIC LIFE CENTER NATIVE PLANTINGS 32 92 16 - 2 A. Planting Restrictions: Installation shall be performed between April 1 and J uly 1. If installation happens outside of this window, Contractor s hall stabilize the site with the following temporary seed mix : 32 lbs Avena sativa (Seed Oats) 5 lbs Lolium multiflorum (Annual Ryegrass) B. Hydrology shall be established prior to installation. Detention pond must have an established pool level to utilize as a reference for planting. C. Surrounding uplands shall be stabilized with the specified grass seed mix. No pre-emergent herbicides shall be applied to surrounding turf during the six (6) months prior to installation and for at least one (1) year following installation. 1.6 SITE AND MATERIAL CONDITIONS A. All native seed shall be stored in a cooler at 40 degrees Fahrenheit prior to installation. 1. All native seed must be of wild ecotype. No hybrids or cultivars may be included. Seed shall be local genotype as supplied by Spence Restoration Nursery or an approved local source. 2. Local genot ype seed s hall be used whenever possible due to its adaptation to central Indiana soil and climate. These specifications do not apply to the temporary matrix. PART 2 - PRODUCTS 2.1 SEED SPECIES – A. Wet Mesic Seed Mix as provided by Spenc e Restoration Nursery or approved equal prior to bidding Ox/acre Grasses 16 Andorpogon gerardii (Big B lue Stem) 2 Carex annectans xanthocarpa (Yellow Fox Sedge) 2 Carex frankii (Frank ’s Sedge) 6 Carex vulpinoidea (Fox Sedge) 32 Elymus canadensis (Canad a Wild Rye) 32 Elymus virginicus (Virginia Wild Rye) 2 Glyceria striata (Fowl Manna Grass) 4 Panic um virgatum (Switchgrass) 16 Sorghastrum nutans (Indian Grass) 112 oz/acre Oz/acre Wildflowers 1 Asclepias syriaca (Common Milkweed) 1 Baptisia alba (White False Indigo) 3 Coreopsis tripteris (Tall Coreopsis) 3 Echinacea purpurea (Purple cone Flower) 2 Eryngium yucifolium (Rattlesnake Master) 0.5 Eutrochium graminifolia (Grass-Leaved Golenrod) ISLAMIC LIFE CENTER NATIVE PLANTINGS 32 92 16 - 3 1 Helianthus grosseserratus (Sawtooth Sunflower) 4 Heliopsis helianthoides (False Sunflower) 2 Liatris spicata (Dense Blazing Star) 0.5 Monarda fistulosa (Bergamont) 1 Oligoneuron riddellii (Riddell’s Goldenrod) 2 Oligoneuro rigidum (Stiff Goldenrod) 0.5 Penstemon digitalis (Foxglove Beadsglove) 0.5 Pycnanthemum virginianum (Mountain Mint) 4 Ratibida pinnata (Yellow Conflower) 3 Rudbeckia fulgida speciosa (S howy Black-eyed Susan) 3 Rudbeckia hirta (Black-eyed Sus an) 3 Rudbeckia subtomentosa (Sweet Black-eyed Susan) 3 Senna hebecarpa (Wild Senna) 2 Silphium integrifolium (Rosinweed) 4 Silphium terebinthinaceum (Prairie Dock) 0.5 Symphyotrichum firmum (Shining Aster) 1 Symphyotrichum novae-angliae (New England Aster) 2 Vernonia fasciculata (Smooth Ironweed) 0.5 Vero nicastrum v irginicum (Culver’s Root) 48 oz/acre PART 3 - EXECUTION 3.1 SITE PREPARATION & EXAMINATION A. Verify that a stable water level has been established in the detention pond. B. Verify the surrounding uplands have been stabilized the specified grass seed mix. C. Two weeks prior to installation, apply a glyphosate herbicide approved for use arou nd water (Rodeo) to the area to kill existing lawn grasses and other vegetation D. Following a complete kill of existing vegetation, begin installation by tilling area to be seeded to a depth of 3" inches. Till as close to the shoreline as soil moisture conditions permit. 3.2 SEEDING A. Place a portion of the seed in a clean dry 5 gallon bucket. Mix 2 parts coarse sand w ith 1 part seed. Thoroughly mix B. Hand broadcast seed/sand mixture across the specified tilled area. Apply half the seed/sand mixture over the entire area. Apply the second half over the same area utilizing the same procedure to ensure equal coverage of the entire area. C. Lightly firm seedbed with a roller where soil moisture permits. Do not roll ar eas where soil is moist enough to tick to the roller. D. Apply 1 width of erosion blanket starting just above the normal waterline. Secure with 2 staples per square yard. ISLAMIC LIFE CENTER NATIVE PLANTINGS 32 92 16 - 4 3.3 CLEANUP AND PROTECTION A. Promptly remove soil and debris from paved areas. Clean wheels of vehicles before leaving site to avoid tracking soil onto roads, walks, or other paved areas. B. Protect seeded areas with stakes and table around area periphery. Maintain barricades throughout maintenance period and remove after seed established. 3.4 MAINTENANCE A. If weed growth exceeds 10 inches in height in seeded communities, m ow at a height of 4 to 6 inches Do NOT cut emergent community. 3.5 ACCEPTANCE A. Seeded Native Communities - For acceptance at the beginning of the second growing season, the following conditions shall be met. 1. Coverage - 80 % of each plant community shall be covered with vegetation. 2. Presence - 50 % of the species planted should be alive and present. 3. Abundance - 50 % of the vegetation should be native species of the permanent 3.6 WARRANTY A. All work in this Section shall be warranted against any and all defects in workmanship and materials appearing within a period of one (1) year after final completion and acceptance of the work by the Owner (warrantee period). Dead plant material shall be replaced by the Contractor prior to the end of the warranty period without additi onal expense to the Owner. END OF SECTION 32 9216 Page 1 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Aqua-Swirl® Stormwater Treatment System Inspection and Maintenance Manual 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 March 2014 Page 2 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Table of Contents Page(s)  AquaShieldTM Stormwater Treatment Systems 3  Aqua-Swirl® Stormwater Treatment System 4 – 9  Inspection and Maintenance Worksheets and Attachments 10 – 13  Aqua-Swirl® Tabular Maintenance Schedule 14 AquaShieldTM, Inc. 2733 Kanasita Drive Suite 111 Chattanooga, Tennessee 37343 Toll free (888) 344-9044 Fax (423) 870-2112 www.aquashieldinc.com Page 3 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. AquaShield™, Inc Stormwater Treatment Solutions The highest priority of AquaShieldTM, Inc. (AquaShield™) is to protect waterways by providing stormwater treatment solutions to businesses across the world. These solutions have a reliable foundation based on over 20 years of water treatment experience. Local regulators, engineers, and contractors have praised the AquaShield™ systems for their simple design and ease of installation. All the systems are fabricated from high performance, durable and lightweight materials. Contractors prefer the quick and simple installation of our structures that saves them money. The patented line of AquaShield™ stormwater treatment products that provide high levels of stormwater treatment include the following:  Aqua-Swirl® Stormwater Treatment System: hydrodynamic separator, which provides a highly effective means for the removal of sediment, floating debris and free- oil.  Aqua-FilterTM Stormwater Filtration System: treatment train stormwater filtration system capable of removing gross contaminants, fine sediments, waterborne hydrocarbons, heavy metals and total phosphorous. Aqua-Swirl® Stormwater Treatment System Aqua-Filter™ Stormwater Filtration System Page 4 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Aqua-Swirl® Stormwater Treatment System The patented Aqua-Swirl® Stormwater Treatment System is a single chamber hydrodynamic separator which provides a highly effective means for the removal of sediment, free oil, and floating debris. Both treatment and storage are accomplished in the swirl chamber without the use of multiple or “blind” chambers. Independent laboratory and field performance verifications have shown that the Aqua-Swirl® achieves over 80% suspended solids removal efficiency on a net annual basis. The Aqua-Swirl® is most commonly installed in an “off-line” configuration. Or, depending on local regulations, an “in-line” (on-line) conveyance flow diversion (CFD) system can be used. The CFD model allows simple installation by connecting directly to the existing storm conveyance pipe thereby providing full treatment of the “first flush,” while the peak design storm is diverted and channeled through the main conveyance pipe. The patented Aqua-Swirl® Stormwater Treatment System provides a highly effective means for the removal of sediment, floating debris, and free oil. Swirl technology, or vortex separation, is a proven form of treatment utilized in the stormwater industry to accelerate gravitational separation. Page 5 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Floatable debris in the Aqua-Swirl® Each Aqua-Swirl® is constructed of high performance, lightweight and durable materials including polymer coated steel (PCS), high density polyethylene (HDPE), or fiberglass reinforced polymer (FRP). These materials eliminate the need for heavy lifting equipment during installation. System Operation The treatment operation begins when stormwater enters the Aqua-Swirl® 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® 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. The treated flow then exits the Aqua-Swirl® behind the arched outer baffle. The top of the baffle is sealed across the treatment channel, thereby eliminating floatable pollutants from escaping the system. A vent pipe is extended up the riser to expose the backside of the baffle to atmospheric conditions, preventing a siphon from forming at the bottom of the baffle. Custom Applications The Aqua-Swirl® system can be modified to fit a variety of purposes in the field, and the angles for inlet and outlet lines can be modified to fit most applications. The photo below demonstrates the flexibility of Aqua-Swirl® installations using a “twin” configuration in order to double the Page 6 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Custom designed AS-9 Twin Aqua-Swirl® water quality treatment capacity. Two Aqua-Swirl® units were placed side by side in order to treat a high volume of water while occupying a small amount of space. Retrofit Applications The Aqua-Swirl® system is designed so that it can easily be used for retrofit applications. With the invert of the inlet and outlet pipe at the same elevation, the Aqua-Swirl® can easily be connected directly to the existing storm conveyance drainage system. Furthermore, because of the lightweight nature and small footprint of the Aqua-Swirl®, existing infrastructure utilities (i.e., wires, poles, trees) would be unaffected by installation. AquaShield™ Product 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 AquaShieldTM Stormwater Treatment Systems 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. Page 7 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Inspection All AquaShieldTM products can be inspected from the surface, eliminating the need to enter the systems to determine when cleanout should be performed. In most cases, AquaShieldTM recommends a quarterly inspection for the first year of operation to develop an appropriate schedule of maintenance. 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 reduced to semi-annual inspection. Aqua-Swirl® Maintenance The Aqua-Swirl® 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 free- floating oil and floatable debris can be directly observed and maintained through the manhole access provided directly over the swirl chamber. Aqua-Swirl® Inspection Procedure To inspect the Aqua-Swirl®, a hook is 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 information plate Page 8 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Sediment inspection using a stadia rod in a single chamber Maintenance trigger for Aqua-Swirl® Models AS- 3 through AS-13 occurs when sediment pile is 42-48 inches below water surface. Maintenance trigger for Aqua-Swirl® Model AS-2 occurs when sediment pile is 30 to 32 inches below water surface. affixed inside the access riser which provides our contact information, the Aqua-Swirl® model size, and serial number. The only tools needed to inspect the Aqua-Swirl® system are a flashlight and a measuring device such as a stadia rod or pole. Given the easy and direct accessibility provided, floating oil 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 and to the surface of the water. The maintenance trigger for Aqua-Swirl® Models AS-3 through AS-13 occurs when the sediment pile is within 42 to 48 inches of the standing water surface. For the Aqua-Swirl® Model AS-2, maintenance is needed when the top of the sediment pile is measured to be 30 to 32 inches below the standing water surface. 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. 42-48” 42-48” AS-2: 30-32” Page 9 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Vacuum truck quickly cleans the Aqua-Swirl® from a single chamber The Aqua-Swirl® design allows for the sediment to accumulate in a semi-conical fashion as illustrated above. That is, the depth to sediment as measured below the water surface may be less in the center of the swirl chamber; and likewise, may be greater at the edges of the swirl chamber. Aqua-Swirl® Cleanout Procedure Cleaning the Aqua-Swirl® is simple and quick. Free-floating oil and floatable 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® 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 (hidden or “blind”) chambers in the Aqua-Swirl®, there are no restrictions to impede on-site maintenance tasks. Disposal of Recovered Materials Disposal of recovered material is typically handled in the same fashion as catch basin cleanouts. 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® and any external structures (e.g, bypass features) be handled and disposed in full accordance with any applicable local and state requirements. Aqua-Swirl® Inspection and Maintenance Work Sheets on following pages Page 10 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Aqua-Swirl® 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 Debris and Oil 1. Remove manhole lid to expose liquid surface of the Aqua-Swirl®. 2. Remove floatable debris with basket or net if any present. 3. If oil is present, measure its depth. Clean liquids from system if one half (½) inch or more oil is present. Note: Water in Aqua-Swirl® can appear black and similar to oil due to the dark body of the surrounding structure. Oil may appear darker than water in the system and is usually accompanied by oil stained debris (e.g. Styrofoam, etc.). The depth of oil can be measured with an oil/water interface probe, a stadia rod with water finding paste, a coliwasa, or collect a representative sample with a jar attached to a rod. 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. For Aqua-Swirl® Models AS-3 through AS-13, schedule cleaning if value in Step #2 is 48 to 42 inches or less. 4. For Aqua-Swirl® Model AS-2, schedule cleaning if value in Step #2 is 32 to 30 inches or less. Page 11 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. 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. 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, oil 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®. 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® 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® every three (3) months and clean the system as needed. The Aqua-Swirl® 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 Aqua-Swirl® 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 Aqua-Swirl® 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® 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 Page 12 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. every six (6) months and cleaned as needed. The Aqua-Swirl® 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® is inspected. Maintenance should be performed on bypass structures as needed. 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: Oil present: Yes No Oil depth (inches): Measurement method and notes: STRUCTURAL CONDITIONS and OBSERVATIONS Structural damage: Yes No Where: Page 13 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Structural wear: Yes No Where: Odors present: Yes No Describe: Clogging: Yes No Describe: Other Observations: NOTES Additional Comments and/or Actions To Be Taken Time Frame ATTACHMENTS  Attach site plan showing Aqua-Swirl® location.  Attach detail drawing showing Aqua-Swirl® dimensions and model number.  If a diversion configuration is used, attach details showing basic design and elevations (where feasible). Page 14 of 14 © AquaShieldTM, Inc. 2014. All rights reserved. Aqua-Swirl® 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® 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® 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® 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® 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 Aqua -Swirl® should be cleaned annually regardless of whether it reaches its full sediment or floatable pollutant capacity. 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