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HomeMy WebLinkAboutOM ManualStormwater Infrastructure Operations and Maintenance Manual Carmel Clay Schools - Carmel high School Greyhound Activity Center and Stadium South Support Building East 136th Street Carmel, Indiana 46032 Owner: Carmel Clay Schools 5201 E. Main Street Carmel, Indiana 46033 TLF Project 2022-120 February 14, 2023 TLF, Inc. 3901 West 86th Street Indianapolis, IN 46268 Phone (317) 334-1500 Fax (317) 334-1552 TLF#2022-120 14-February 2023 TABLE OF CONTENTS I. Owner Information II. Site Information III. BMP Owner Acknowledgement Agreement IV. Storm Sewer Structure Maintenance V. Storm Sewer Pipe Maintenance VI. Aqua-Swirl (Hydrodynamic Separator) Maintenance VII. Dry Detention Basin Maintenance VIII. Native Vegetation Maintenance IX. Native Vegetation Seed List X. Site Diagrams and Stormwater Details XI. Inspection and Maintenance Schedule XII. Sample Inspection Checklists a. Storm Sewer Structure Inspection Checklist b. Storm Sewer Pipe Inspection Checklist c. Aqua-Swirl (Hydrodynamic Separator) Inspection Checklist d. Dry Detention Basin Inspection Checklist e. Native Plantings Inspection Checklist TLF#2022-120 14-February 2023 I - OWNER INFORMATION BMP Owner Name: Carmel Clay Schools 5201 E. Main Street Carmel, Indiana 46033 Contact: TBD General Information The purpose of water quality Best Management Practices (BMPs) is to filter the first flush of rainwater before it enters the downstream lakes and streams. Through the use of these BMPs, the sediment and pollutant load in stormwater runoff is reduced, and in many cases the quantity of stormwater runoff generated is also reduced. The use of BMPs also helps to reduce hydrocarbons, trash, and debris from entering waterways. Owner Responsibility The BMP Owner shall be responsible for all maintenance and costs associated with the proposed BMPs. In addition, it is the owner’s responsibility to perform and/or pay for inspections and maintenance as recommended below. Right of Entry City of Carmel representatives have the right to enter the property to inspect and, if required, maintain the BMPs at any time. Annual Inspection Reports Annual inspection reports shall be submitted to the City of Carmel for each BMP. 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 discrepancies 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 of Carmel. TLF#2022-120 14-February 2023 II – SITE INFORMATION The site contains multiple Best Management Practices (BMP’s) for the purpose of sediment removal. A Dry Detention Pond is located at the southeast corner of the site and two Mechanical BMP’s are located upstream of the Dry Detention Pond. City of Carmel will require annual inspection reports of the water quality BMPs. LOCATION MAP TLF#2022-120 14-February 2023 III – BMP OWNER ACKNOWLEDGEMENT AGREEMENT 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 (1) Aquaswirl XC-11 On-Line, (1) Aquaswirl XC-12 Off-Line (1) Existing Dry Detention Basin (1) Native Vegetation in Dry Detention Basin (1) Native Vegetation east of Greyhound Activity Center TLF#2022-120 14-February 2023 IV – STORM SEWER STRUCTURE MAINTENANCE Storm structures are set at storm sewer pipe connections. Unless you have OSHA approved training and equipment, never enter a manhole. Inspection All inlet castings should be inspected monthly and after each 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 6”. Cleaning should be performed in a way that ensures removed sediment and water is not discharged back into the storm sewer. Safety Work inside underground structures requires special OSHA-required confined space equipment and procedures. The most practical option may be to contract with a sewer cleaning contractor. 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 a 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. TLF#2022-120 14-February 2023 V – STORM SEWER PIPE MAINTENANCE 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. 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 pipes. Cleaning Clean pipes when sediment depth is greater than ¼ of the pipe diameter, with a maximum sediment depth of 6”. 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. Safety Work inside underground structures requires special OSHA-required confined space equipment and procedures. The most practical option may be to contract with a sewer cleaning contractor. 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 a 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 or replace pipes when a dent or break closes more than 20 percent of the pipe diameter. Repair or replace pipes damaged by deterioration. TLF#2022-120 14-February 2023 VI – HYDRODYNAMIC SEPARATOR MAINTENANCE This project contains two AquaSwirl BMP structures. AquaSwirls are designed to remove sediment, debris, and free oil from entering the sewer system. After construction, the AquaSwirl structures should be inspected every six months and cleaned as needed or once a year regardless of whether it has reached full pollutant storage capacity. Disposal of all sediment, in addition to local requirements, must be in accordance with all federal and state requirements. See the attached manufacture O&M Manual for complete details of inspection and cleaning. Inspection Inspect the unit every six months. The inspection should determine sediment depth, accumulation of trash and litter, and the specific maintenance and repairs needed. Annually check for cracks large enough to let soil enter the vault, broken or defective plates and baffles, and crushed or damaged pipes. Cleaning Remove trash and litter from the vault, inlet, and piping when present. Remove sediment when it accumulates to 7” or per the manufacturer’s maximum recommended depth. Cleaning should be performed in a way that ensures removed sediment and water is not discharged back into the storm sewer. Safety Work inside underground structures requires special OSHA-required confined space equipment and procedures. The most practical option may be to contract with a sewer cleaning contractor. 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 a 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 any cracked or defective plates or baffles. 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. © 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. ” © 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. TLF#2022-120 14-February 2023 VII – DRY DETENTION BASIN MAINTENANCE The site contains one dry detention basin at the southeast corner of the property. The pond discharges to the south off-site. Inspection Dry detention basins function more effectively when they are regularly inspected and maintained. Indentify and report pollutant sources to the facility. Inspect the facility for oil and other pollutant and remove any pollutants in volumes greater than a surface sheen. Cleaning Trash is to be removed after every major rainfall event and at least every six months. Sediment is to be removed when it accumulates to 10 percent designed pond depth. 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 and seed bare areas. Repair eroded slopes when rills form, where the cause of damage is present, or there is potential for future erosion. Use cover BMPs on exposed soils. Rodent holes on a dam or berm can pipe water. Destroy rodents, preferably by trapping, and repair the dam or berm. If berms or dams show signs of sediment or sinkholes, serious problems may be occurring. Consult a licensed professional engineer to determine the cause of the sediment of sinkhole. TLF#2022-120 14-February 2023 VIII – NATIVE VEGETATION MAINTENANCE The site contains 2 areas of native vegetation. These two areas are the dry detention basin and east of the Greyhound Activity Center building. Maintenance Year 1 - Repair and seed bare areas. Repair eroded slopes when rills form, where the cause of damage is present, or there is potential for future erosion. - Mow the installation at a height of 4 to 6 inches monthly, or each time weed growth reaches 10 inches in height. - At the end of the growing season, the installation may be mown down to 3 inches in height. - Trash is to be removed before every mowing. Year 2 - Mow at a height of 4 to 6 inches in the first half of May. - If weed pressure is light, the planting may be allowed to grow for the remainder of the season. - If there are significant quantities of biennial and perennial weeds such as sweet clover, Queen Anne’s lace, or Canada thistle, monthly mowing should continue through August. - The planting should be mowed to 3 inches in height during the dormant season following the second growing season. - Trash is to be removed before every mowing. Year 3 - The planting should be monitored for invasive plant species and unwanted woody plants twice a year, typically in late spring and again in early fall. - Targeted applications of selective herbicides on invasive plant species. - Unwanted woody species should be cut and treated with an appropriate herbicide in early fall each year. - Trash is to be removed at least every six months. Year 4 and beyond - The planting should be monitored for invasive plant species and unwanted woody plants twice a year, typically in late spring and again in early fall. - Targeted applications of selective herbicides on invasive plant species. - Unwanted woody species should be cut and treated with an appropriate herbicide in early fall each year. - Mow every third year and rake and remove the clippings following mowing. - Trash is to be removed at least every six months. TLF#2022-120 14-February 2023 IX – NATIVE VEGETATION SEED LIST a. Native Seed Mix east of Greyhound Activity Center - Slope Stabilization Seed Mix Slope Stabilization Seed Mix Permanent Grasses Andropogon gerardii - Big Bluestem Bouteloua curtipendula - Side-Oats Grama Carex spp. - Prairie Sedge Species Elymus canadensis - Canada Wild Rye Elymus virginicus - Virginia Wild Rye Panicum virgatum - Switch Grass Schizachyrium scoparium - Little Bluestem Sorghastrum nutans - Indian Grass Temporary Cover Avena sativa - Common Oat Lolium multiflorum - Annual Rye b. Native Seed Mix in Dry Detention Basin - Swale Seed Mix Swale Seed Mix Permanent Grasses/Sedges Andropogon gerardii - Big Bluestem Carex cristatella - Crested Oval Sedge Carex lurida - Bottlebrush Sedge Carex spp. - Prairie Sedge Species Carex stipata - Common Fox Sedge Carex vulpinoidea - Brown Fox Sedge Elymus canadensis - Canada Wild Rye Elymus virginicus - Virginia Wild Rye Juncus effusus - Common Rush Panicum virgatum - Switch Grass Scirpus atrovirens - Dark Green Rush Scirpus cyperinus - Wool Grass Spartina pectinata - Prairie Cord Grass TLF#2022-120 14-February 2023 IX – NATIVE VEGETATION SEED LIST (Continued) Temporary Cover Avena sativa - Common Oat Forbs Alisma subcordatum - Common Water Plantain Asclepias incarnata - Swamp Milkweed Coreopsis tripteris - Tall Coreopsis Euthamia graminifolia - Common Grass-Leaved Goldenrod Eutrochium maculatum - Spotted Joe-Pye Weed Iris spp. - Blue Flag Species Liatris spicata - Marsh Blazing Star Lycopus americanus - Common Water Horehound Mimulus ringens - Monkey Flower Penthorum sedoides - Ditch Stonecrop Pycnanthemum virginianum - Common Mountain Mint Rudbeckia subtomentosa - Sweet Black-Eyed Susan Rudbeckia triloba - Brown-Eyed Susan Senna hebecarpa - Wild Senna Symphyotrichum novae-angliae - New England Aster Verbena hastata - Blue Vervain Zizia aurea - Golden Alexanders TLF#2022-120 14-February 2023 X – SITE DIAGRAMS AND STORMWATER DETAILS TBM#1 = 813.74TBM#2 = 809.81TBM#3 = 803.80LOT1204LOT1205LOT1206LOT1207LOT 1301LOT 1302LOT 1303LOT 1304LOT 1305LOT 1306LOT 1401LOT 1402LOT 1403LOT 1404LOT 1405LOT 1406LOT 1701LOT 1702LOT 1703LOT 1704LOT 401LOT 402LOT 403LOT 404LOT 405LOT 301LOT 302LOT 303LOT 304LOT 305LOT 201LOT 202LOT 203LOT 204LOT 205LOT 101LOT 102LOT 103LOT 104LOT 105COMMON AREA "B"COMMON AREA "N"PRIVATE ALLEYCOMMON AREA "L"COMMON AREA "H"COMMON AREA "F"COMMON AREA "E"PRIVATE ALLEYPRIVATE ALLEY UP REF.23'-8 5/8"26'-6 3/8"23'-8 5/8" 28'-0 3 /8 "20'-8 "32'-7 5/ 8" 20'-8 "175'-11 5 /8 " 76'-0" 26'-0 " 76'-0 " 52'-8"31'-10"18'-9 5/8"PROPERTY LINEPROPERTY LINE PROPERTY LINEPROPERTY LINEPROPERTY LINEPROPERTY LINEPROPERTY LINEFDCFDCFDCFDCFDCEXISTING DRY DETENTION PONDAQUASWIRL XC-11(ON-LINE UNIT)AQUASWIRL XC-12(OFF-LINE UNIT)POND OUTLETNATIVE VEGETATIONNATIVE VEGETATIONNATIVE VEGETATIONNATIVE VEGETATIONNO MOW OR SPRAY SIGNNO MOW OR SPRAY SIGNNO MOW OR SPRAY SIGNNO MOW OR SPRAY SIGNNO MOW OR SPRAY SIGNCOPYRIGHT 2022 BY FANNING/HOWEY ASSOCIATES, INC.WWW.FHAI.COMARCHITECTPROJECT NUMBER: 222063.00CARMEL HIGHSCHOOLGREYHOUNDACTIVITY CENTERCARMEL CLAY SCHOOLS520 E MAIN STREETCARMEL, IN 46032PROJECT ISSUE DATE: 12.01.2022CONSTRUCTION DOCUMENTSDRAWN BY: ARS317.848.0966350 E NEW YORK ST #300, INDIANAPOLIS, IN 46204REV.NO.DESCRIPTIONDATECONSULTANTPROJECT MANAGER: PMR-SITE DIAGRAM60180060120 TOP OF BANK = 804.65SIDE VIEWEXISTING 24" RCPOUTLET30"x 30"INV. = 797.2224"W x 12"H WEIR OPENINGINV.= 801.50NEENAH R-4215-CCATCH BASIN FRAME AND GRATERIM ELEV. = 802.65 (100 YR)COMPACTEDSUBGRADECLASS "A" PRECASTREINFORCEDCONCRETE BOX8"BASE SET ON 6" OF #8OR #2 STONECOMPACTEDSUBGRADEBASE SET ON 6" OF #8OR #2 STONEGROUT AS REQUIRED30"x 30"FRONT VIEWEXISTING 24" RCP OUTLETINV. = 797.22MAX SLOPE = 3:19.3" DIA. ORIFICE INV.= 797.2224"W x 12"H WEIR OPENINGINV.= 801.50NEENAH R-4215-CCATCH BASIN FRAME AND GRATERIM ELEV. = 802.65 (100 YR)STR.401 OUTLET CONTROL STRUCTURE DETAILNO SCALE9.3" DIA. ORIFICE INV.= 797.2224" SUMP24" SUMP48" RCP INV. = 798.0030" HDPE INV. = 798.00STR. ST-210STR. ST-211STR. ST-211A30" HDPE INV. = 797.9830" HDPE INV. = 797.9830" HDPE INV. = 797.9648" RCP INV. = 797.96FLOWFLOW48" RCP INV. = 800.0048" RCP INV. = 799.9616.46' OF 30" HDPE @ 0.12%21.21' OF 30" HDPE @ 0.10%30.00' OF 48" RCP @ 0.13%(HIGH FLOW BY-PASS)OFF-LINE BMP AQUA-SWIRL XC-12 PLAN VIEW DETAIL (ST-211A)DRY POND EMERGENCY SPILLWAY DETAIL80' BOTTOM WIDTHMAX SLOPE 3:1SPILLWAY EL.= 802.65MAX SLOPE 3:1TOP OF BANKEL. = 804.65TOP OF BANKEL. = 804.65SEE STRUCTURE DATA TABLE FORCASTING TYPE AND ELEVATIONFINISH GRADEASPHALTICMASTIC OR BUTYLRUBBER SEALBETWEEN JOINTSPRECAST CONCRETE ADJUSTINGRINGS AS NEEDED (12" OF RINGS MAX.)ECCENTRIC CONE OR REDUCERCAP AS REQUIRED BY SITECONDITIONS. CONE TOP TOMATCH ADJUSTING RING PROFILE.48" DIA.5"16" TYP.PRECAST CONCRETESECTIONSPREFORMED HOLE TO MAX.OF PIPE O.D. + 6" W/ NONSHRINK CEMENT GROUTBENCHWALLS AT MIN. 1/2" PERFOOT SLOPE. BENCHWALLS TOBE CONSTRUCTED TO SPRINGLINE OF PIPE.MANHOLE BASE SET ON6" OF #8 OR #2 STONECOMPACTEDSUBGRADEPLASTIC ENCAPSULATEDSTEEL MANHOLE STEPSO-RING GASKETASPHALTIC MASTICOR BUTYL RUBBERSEAL AT JOINTSBASE 6" OR 8"PER SECTION3"#4 BAR @ 12" o.c.EACH WAY(STEEL MESHAREA = 0.12 SQ.IN./SQ. FT.)STORM MANHOLE TYPE "C" DETAIL1/2" = 1'-0"24" DIA.SEE STRUCTURE DATATABLE FOR PIPE SIZEAND INVERT ELEV.NOTES:1.MANHOLE CONFORMS TO ASTM C478, JOINTS CONFORM TO ASTM C443.2.ALL STORM SEWER CASTINGS SHALL BE MARKED "DUMP NO WASTEDRAINS TO WATERWAYS".3.SEE UTILITY PLAN FOR STORM SEWER STRUCTURE DATA TABLE.VARIES 16" MIN.12" TO 15""A"PIPE SIZE24" X 24"STRUCTURE SIZING CHART"F"30" X 30""M"24" X 36"1" = 1'-0"STORM INLET DETAILINSIDEDIMENSIONSINLETTYPE8"6"CLASS "A" PRECAST REINFORCEDCONCRETE BOXSEE STRUCTURE DATATABLE FOR PIPE SIZEAND INVERT ELEV.INSIDE DIMENSION* SEE SIZING CHART ABOVESEE STRUCTURE DATA TABLE FORCASTING TYPE AND ELEVATIONBASE SET ON 6" OF#8 OR #2 STONECOMPACTEDSUBGRADEINSIDE DIMENSION * SEE SIZING CHART ABOVE MAX. NUMBER OFSIDES OF THEINLET WITH PIPES318" TO 24"315" TO 18"3NOTES:1.ALL STORM SEWER CASTINGS SHALL BE MARKED "DUMP NO WASTEDRAINS TO WATERWAYS".2.SEE UTILITY PLAN FOR STORM SEWER STRUCTURE DATA TABLE.FOR PIPE LOCATED IN ANDWITHIN 5' OF PAVED AREASFOR PIPE LOCATEDIN GRASSED AREASSTORM SEWER (PVC & HDPE) TRENCH DETAILNO SCALENOTES:1.ALL BEDDING & INITIAL BACKFILLSHALL BE INSTALLED IN 6" TO 12"BALANCED LIFTS.2.A MIN. 9" CLEARANCE EACH SIDEOR PIPE FOR 42" DIA. AND LESS.BcMIN. 4"12"MIN. 1.25 O.D.+12"MIN. 6" TOPSOILOUTSIDE PAVEMENT LIMITSPAVEMENT SECTIONREGULAR BACKFILL -GREATER THAN 5' FROMEDGE OF PAVEMENTCOMPACTED 90%REGULAR BACKFILL-GREATER THAN 5' FROMEDGE OF PAVEMENTCOMPACTED TO 90%#8 CRUSHED STONE OREQUIVALENT CLASS 1MATERIAL HAND TAMPEDOR WALKED INTO PLACE"B" BORROW (INDOT SPEC.) OREQUIVALENT GRANULARMATERIAL COMPACTED TO 95%STANDARD PROCTER DENSITY20 L.F. (MIN,)20 L.F. (MIN,)2 0 L . F . (M I N , )20 L.F. (MIN,)2'-0" VARIES 4" DIA. PERF.PVC SDR-35 PIPE1'-0"4"NON WOVENFILTER CLOTH#8 WASHEDAGGREGATECOMPACTED AGGREGATE BASEPAVEMENTCURB INLETNOTES:1.TAP STRUCTURES IN PAVEMENT AS SHOWNOR AS DIRECTED ON THE PLAN SHEET2.ADJUST UNDERDRAIN AS REQUIRED TOAVOID SEWER LINES AND OTHER UTILITIES.3.GROUT SOLID THE CONNECTION TO STORMSTRUCTUREPAVEMENT UNDERDRAIN DETAILNO SCALE6"6"6"END VIEW6"5'MIN.18" MIN.SECTION VIEWWATER LINESTORM SEWER / WATER LINE CROSSING DETAILNO SCALESTORMSEWERMUST EXTEND TOUNDISTURBEDSOILCONCRETE ENCASEMENTREQUIRED IF VERTICAL PIPECLEARANCE IS LESS THAN 18".5'MIN.1/6 Bc3"4"6"LEGEND MATERIAL BELOW PIPEd = DEPTH OF BEDDINGD = INSIDE DIAMETERBc = OUTSIDE DIAMETER30" TO 60"27" & SMALLER66" & LARGER D (d) MIN. 3/4" = 1'-0"DEPTH OF BEDDINGMATERIAL BELOW PIPENOTES:1.ALL BEDDING & INITIAL BACKFILLSHALL BE INSTALLED IN 6" TO 12"BALANCED LIFTS.2.A MIN. 9" CLEARANCE EACH SIDEOR PIPE FOR 42" DIA. AND LESS.REGULAR BACKFILL -GREATER THAN 5' FROM EDGEOF PAVEMENT COMPACTED 90%MIN. 1.25 O.D.+12"FOR PIPE LOCATED IN ANDWITHIN 5' OF PAVED AREASFOR PIPE LOCATEDIN GRASSED AREASBcMIN. 6" TOPSOILIN NON-PAVED AREASPAVEMENT SECTION"B" BORROW (INDOT SPEC.) OREQUIVALENET GRANULARMATERIAL COMPACTED TO 95%STANDARD PROCTER DENSITY"B" BORROW (INDOT SPEC.) OREQUIVALENET GRANULARMATERIAL COMPACTED TO 95%STANDARD PROCTER DENSITYdSTORM SEWER (RCP) TRENCH DETAILSLOPEMIN.NOTE: CLEANOUTS IN PAVED AREAS TO BE ACCESSIBLE VIA YARDBOXES OR EXTENDED FLUSH WITH THE PAVING. COVER SHOULD BETHREADED TYPE, WATER TIGHT AND CAPPED.1/2" = 1'-0"CLEANOUT DETAILVARIES FINISH GRADESTORM OR SANITARY SEWER(SIZE SHOWN ON PLANS)SAME SIZE AS MAIN LINE(MAX. 8" REQUIRED ON STORM SEWERS)1'-0"1'-0"MIN.6"1/2"HEAVY DUTY CLEANOUTCASTING - JAY R. SMITH 4253SERIES OR EQUALCONCRETE COLLAR(CONCRETE SHALL NOTBE IN CONTACT w/ PIPE)30"72"60"102"108"96"6"7"9"9"SEE SCHEDULEFOR CASTING TYPEAND ELEVATIONFINISHGRADESTORM MANHOLE TYPE "J - N" DETAIL1/2" = 1'-0"24" DIA.PRECAST CONCRETEADJUSTING RING4" MIN. - 12" MAX. SEE DETAILPLASTIC ENCAPSULATEDSTEEL MANHOLE STEPS48" DIA.STANDARD PRECASTMANHOLE CAP OR CONE3" MIN. 6'-0" MIN.9"8" MIN. 3" MIN. 16" TYP.5"5"CONCRETE REDUCER CAP1/2" PER FOOT SLOPEBASE SET ON 6" OF#8 OR #2 STONECOMPACTEDSUBGRADEDIA. "F""H""H"1'-0" MIN. OVERHIGHEST PIPEDIA . "G "ONE COMPLETE UNIT OF PRECASTCONC. MANHOLE BASE AND RISER.SEPARATE BASE IS OPTIONALNOTES:MANHOLE CONFORMS TO ASTM C478.JOINTS CONFORM TO ASTM C443.NO BRICK OR BLOCK WILL BEALLOWED IN MANHOLE.MANHOLETYPE"J""K""L""M""N"MANHOLEDIA "F"MAX. PIPE SIZE@ 90° - DIA "G""H" - WALLTHICKNESS36"48"60"72"9"MAX. PIPE SIZEMAINLINE - DIA "G"36"48"54"72"84"PLAN VIEWSEE SITEUTILITY PLANDOWNSPOUT, SIZE BYARCHITECT/PLUMBINGENGINEERCAST IRON DOWNSPOUT SHOE(NEENAH R-4929 OFFSET ORAPPROVED EQUAL)8" DIP PIPE90° DIP ELBOWHDPE FITTING2% MIN.8" DIP,SEE SITE UTILITYPLANS FOR SIZES45° HDPE ELBOW45° HDPE WYEFITTINGFACE OF BUILDINGNO SCALEDOWNSPOUT BOOT DETAILTRANSITION COUPLING FORDISSIMILAR MATERIALSHDPE STORM SEWER PIPE.SEE SITE UTILITY PLANS.FINISH GRADEHDPE STORM SEWER PIPE.SEE SITE UTILITY PLANS.8" DIP PIPETRANSITION COUPLING FORDISSIMILAR MATERIALS1" = 1'-0"PRECAST FLARED END SECTIONDO NOT MOWOR SPRAY1'-6"12"5'-0" TO FINISHED GRADE BEYONDTHIS POINTTOP OF RIM = 808.55FINISHGRADESTORM MANHOLE ST-210 (DIVERSION STRUCTURE)1/2" = 1'-0"24" DIA.PRECAST CONCRETEADJUSTING RING4" MIN. - 12" MAX. SEE DETAILPLASTIC ENCAPSULATEDSTEEL MANHOLE STEPS48" DIA.STANDARD PRECASTMANHOLE CAP OR CONE7'-3" MIN.9"8" MIN. 3" MIN.16"TYP.5"5"CONCRETE REDUCER CAPBASE SET ON 6" OF#8 OR #2 STONECOMPACTEDSUBGRADE108"1'-0" MIN. OVERHIGHEST PIPE30" HDPEINV = 798.00TO BMPONE COMPLETE UNIT OF PRECASTCONC. MANHOLE BASE AND RISER.SEPARATE BASE IS OPTIONALNOTES:MANHOLE CONFORMS TO ASTM C478.JOINTS CONFORM TO ASTM C443.NO BRICK OR BLOCK WILL BEALLOWED IN MANHOLE.FLOW48" RCP INV. = 798.0048" RCP INV. = 800.00(HIGH FLOW BY-PASS)9" SECTION A-A - DETENTION BASIN PROPERTY LINEEXISTING TREE EXISTING PARKING LOT LAWN DO NOT SPRAY SIGN NATIVE PLANTINGS NATIVE PLANTINGS LAWN 800 805 810 815 TLF#2022-120 14-February 2023 XI – INSPECTION AND MAINTENANCE SCHEDULE Structure/BMP Inspection Maintenance Storm Structure Casting Monthly & after rain events 6” of sediment accumulation Storm Structure Sump Annually & after heavy rain events 6” of sediment accumulation Storm Sewer Pipe When problems occur 6” of sediment accumulation Hydrodynamic Separator Every 6 months 7” of sediment accumulation Dry Detention Basin Every 6 months Sediment accumulation of 10% of designed pond depth (at a minimum, annually) TLF#2022-120 14-February 2023 XII – SAMPLE INSPECTION CHECKLISTS Storm Sewer Structure Operation, Maintenance, and Management Inspection Checklist for BMP Owners Project: _________________________________Owner Change since last inspection? Y N Owner Name, Address, Phone: ___________________________________________________________ Number: _____________________________________________________________________________ Location: _____________________________________________________________________________ Site Status _________________________________ Date: ________________________ Time: ________________________ Inspector: ____________________________________________________________________________ Maintenance Item Satisfactory/ Unsatisfactory Comments Storm Casting and Grate (Inspect monthly and after major storms) 1. Trash/Debris obstructing inflow Affected Structures: 2. Silt/Sediment accumulation Affected Pipes: 3. Other (describe) Structure Sump (Inspect annually and after major storms) 1. Sediment/Debris in sump Affected Structures: 2. Other (describe) Headwall Structures (Inspect annually and after major storms) 1. Vegetation around headwall 2. Erosion around headwall 3. Animal burrows 4. Headwall clear of obstructions 5. Sediment Accumulation Affected Structures: 6. Other (describe) Additional Comments: _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Actions to be taken: Timeframe: Storm Sewer Pipes Operation, Maintenance, and Management Inspection Checklist for BMP Owners Project: _________________________________Owner Change since last inspection? Y N Owner Name, Address, Phone: ___________________________________________________________ Number: _____________________________________________________________________________ Location: _____________________________________________________________________________ Site Status _________________________________ Date: ________________________ Time: ________________________ Inspector: ____________________________________________________________________________ Maintenance Item Satisfactory/ Unsatisfactory Comments Storm sewer pipes (Inspect annually and after major storms) 1. Trash/Debris obstructing inflow Affected Pipes: 2. Silt/Sediment accumulation Affected Pipes: 3. Other (describe) Additional Comments: _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Actions to be taken: Timeframe: Aqua-Swirl Water Quality Structure Operation, Maintenance, and Management Inspection Checklist for BMP Owners Project: _________________________________Owner Change since last inspection? Y N Owner Name, Address, Phone: ___________________________________________________________ Number: _____________________________________________________________________________ Location: _____________________________________________________________________________ Site Status: _________________________________ Date: ________________________ Time: ________________________ Inspector: ____________________________________________________________________________ Maintenance Item Satisfactory/ Unsatisfactory Comments Aqua-Swirl Concentrator (Inspect quarterly and after major storms) 1. Condition of Structure 2. Trash/Debris obstructing inflow Affected Structures: 3. Silt/Sediment accumulation Affected Pipes: 4. Other (describe) Filtration Chamber (Cleaned annually at a minimum) 1. Condition of Chamber and Filter Trays 2. Color of Filter Media 3. Sediment/Debris in sediment chamber pumped and unit is pressure washed 4. Other (describe) Additional Comments: _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Actions to be taken: Timeframe: Dry Detention Basin Operation, Maintenance, and Management Inspection Checklist for BMP Owners Project: _________________________________Owner Change since last inspection? Y N Owner Name, Address, Phone: ___________________________________________________________ Number: _____________________________________________________________________________ Location: _____________________________________________________________________________ Site Status _________________________________ Date: ________________________ Time: ________________________ Inspector: ____________________________________________________________________________ Maintenance Item Satisfactory/ Unsatisfactory Comments Embankment and Emergency Spillway (Inspect annually and after major storms) 1. Vegetation 2. Erosion on embankment 3. Animal burrows 4. Cracking, bulging or sliding of dam A. Location B. Describe 5. Drains clear and functioning 6. Leaks or seeps on embankment A. Location B. Describe 7. Slope protection failure 8. Emergency spillway clear of obstructions 9. Other (describe) Inflow Points (Inspect every 6 months) 1. Trash/Debris/Sediment obstructing inflow Affected Pipes: 2. Structure Condition 3. Pipe Condition 4. Other (describe) Dry Detention Basin 1. Debris/Sediment accumulation 2. Undesirable vegetative growth 3. Visible Pollution 4. Proper drainage 5. Other (describe) Outlet Device 1. Debris/Sediment obstructing outflow 2. Structure condition 3. Pipe Condition 4. Orifice Plate/outlet pipe blockage 5. Other (describe) Additional Comments: _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Actions to be taken: Timeframe: Native Plantings Operation, Maintenance, and Management Inspection Checklist for BMP Owners Project: _________________________________Owner Change since last inspection? Y N Owner Name, Address, Phone: ___________________________________________________________ Number: _____________________________________________________________________________ Location: _____________________________________________________________________________ Site Status _________________________________ Date: ________________________ Time: ________________________ Inspector: ____________________________________________________________________________ Maintenance Item Satisfactory/ Unsatisfactory Comments Inflow Points (Inspect annually and after major storms) 1. Vegetation/Debris/Sediment obstructing inflow 2. Erosion/undercutting 3. Other (describe) Entire Perimeter of Native Plantings (Inspect annually and after major storms) 1. Trash debris 2. Bare soil/Erosion 3. Sediment accumulation 4. Vegetation height (too short/too tall) 5. Invasive vegetation 6. Other (describe) Additional Comments: _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Actions to be taken: Timeframe: