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HomeMy WebLinkAboutOM ManualStormwater Infrastructure Operations and Maintenance Manual Carmel Clay Schools - Carmel High School Polytechnic Addition and Renovation 520 E. Main Street Carmel, Indiana Owner: Carmel Clay Schools 5201 E. Main Street Carmel, Indiana 46033 TLF Project 2023-119 September 20, 2023 TLF#2023-119 20-September-2023 TLF, Inc. 3901 West 86th Street Indianapolis, IN 46268 Phone (317) 334-1500 Fax (317) 334-1552 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. Underground Detention Basin Maintenance VIII. Site Diagrams and Stormwater Details IX. Inspection and Maintenance Schedule X. Sample Inspection Checklists a. Storm Sewer Structure Inspection Checklist b. Storm Sewer Pipe Inspection Checklist c. Aqua-Swirl (Hydrodynamic Separator) Inspection Checklist d. Underground Detention Basin Inspection Checklist TLF#2023-119 20-September-2023 I - OWNER INFORMATION BMP Owner Name: Carmel Clay Schools 5201 E. Main Street Carmel, Indiana 46033 Contact: Todd Fenoglio Director of Facilities 5201 E. Main Street Carmel, Indiana 46033 Telephone: 317-844-820 e-mail: tfenogli@ccs.k12.in.us 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#2023-119 20-September-2023 II – SITE INFORMATION The site contains a Best Management Practices (BMP) for the purpose of sediment removal. The Mechanical BMP and Underground Detention System are located at the northern portion of the project site. City of Carmel will require annual inspection reports of the water quality BMPs. LOCATION MAP TLF#2023-119 20-September-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-6 On-Line Unit TLF#2023-119 20-September-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#2023-119 20-September-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#2023-119 20-September-2023 VI – HYDRODYNAMIC SEPARATOR MAINTENANCE This project site contains one AquaSwirl BMP structure. 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#2023-119 20-September-2023 VII – UNDERGROUND DETENTION BASIN MAINTENANCE This site contains one underground detention basin as shown on the site exhibit. The basin discharges into a 12” storm sewer and then to the existing 30” RCP located on the north side of the project site. Detention facilities are designed to hold and slowly release stormwater by use of underground chambers and a specially designed control structure. Inspection Inspection is the key to effective maintenance and is easily performed. StormTech recommends ongoing quarterly inspections of the accumulated sediment. Sediment deposition and transport may vary from year to year and quarterly inspections will help insure that the systems are cleaned out at the appropriate time. Inspections should be performed more often in the winter months in climates where sanding operations may lead to rapid accumulations, or in equipment washdown areas. It is very useful to keep a record of each inspection. Systems should be cleaned when inspection reveals that accumulated sediment or trash is clogging the discharge orifice. StormTech suggests that all systems be designed with an access/inspection manhole situated at or near the inlet and the outlet orifice. Should it be necessary to get inside the system to perform maintenance activities, all appropriate precautions regarding confined space entry and OSHA regulations should be followed. Cleaning Maintaining an underground detention system is the easiest when there is no flow entering the system, for this reason it is a good idea to schedule the cleanout during dry weather. Accumulated sediment and trash can typically be evacuated through the manhole over the outlet orifice. Manhole covers should be securely seated following cleaning activities. 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. 15" TLF#2023-119 20-September-2023 VIII – SITE DIAGRAMS AND STORMWATER DETAILS DN UP UP CONSTRUCTIONTRADES LABC106 ADVANCED MFG. INNOVATION LABC116 COMPUTER ART ROOM C120 TEACHERSWORKROOMC122 CERAMICSCLASSROOM / LABC123 DRAWING CLASSROOM / LABC125 DRAWINGCLASSROOM / LABC126 DRAWING CLASSROOM / LABC127 JEWELRY CLASSROOM / LABC128 PHOTOGRAPHYC129 STORAGEC123A STORAGE / MATERIALSC123B STORAGEC117A STORAGE /MATERIALSC117B DEPT. HEADOFFICEC122ASTORAGEC131AMEDIA DATAC131B DARKROOMC119ACORRIDORC131C MEDIA DATAC101C CORRIDORC101F CORRIDORC131 CULINARY ARTSC124 ADVANCED CONSTRUCTIONTRADES LABC106B AUTOMOTIVE SERVICES LABC115B ADVANCEDAUTOMOTIVE SERVICES LABC115 CORRIDORC131 CLASSROOMC107 ADVANCED MFG.ARTISAN LABC107A CAD LAB C109 CAD LABC110 STORAGEC101 LOADING / RECEIVINGC100 STORAGEC101A TV CLASSROOMC141 STUDIO BC141AOFFICEC141B PASSAGEC138A STUDIO C138B STUDIOC138C STUDIOC138D STUDIOC138E STUDIOC138 CULINARY ARTS C124 CLOSETC124A DRY GOODSC124B WALK-INC124C STORAGEC101 VESTIBULEC101G ELECTRICAL C100B CAD LABC114 STORAGEC115A SPRAY BOOTHC115C ADVANCED MFG.CLEAN LABC116A STORAGEC106A C107B CORRIDORC101J CORRIDORC101H CORRIDOR - C152 NEW BUILDING ADDITION 16,000 SF FFE = 852.88 2 2 2 3 7 19 6 8 12 14 14 15 13 13 12 15 15 18 18 1818 12 SEE PLUMBING PLANS 16 17 7 15 20 21 20 20 22 23 11 12 10 9 10 9 10 9 11 13 10 9 10 23 22 7 12 11 11 11 12 13 4 4 5 5 5 5 10 9 ST-104 ST-101 ST-103 ST-105 ST-201 ST-102 ST-302 ST-205 ST-301 ST-300-OUT ST-202 ST-207 ST-300-IN ST-206 ST-204 ST-203 SAN-1 SAN-3 SAN-5 SAN-6 SAN-2 SAN-4 1 INV. 848.13 1 INV. 848.13 1 INV. 848.13 1 INV. 847.00 11 INV. 848.21 1 INV. 847.88 24 STRUCTURE TABLE STR. NO. 101 102 103 104 105 201 202 203 204 205 206 207 300-IN 300-OUT 301 302 STRUCTURE Existing Manhole Inlet Type "A" Type "C" Manhole Type "C" Manhole Existing Manhole Inlet Type "A" Inlet Type "M" Inlet Type "M" Type "C" Manhole Inlet Type "A" Type "C" Manhole Aqua-Swirl XC-6 Detention Chambers Detention Chambers Outlet Control Structure Existing Manhole STRUCTURE DETAIL REFERENCE - Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 - Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 Sheet SU2.1 - CASTING TYPE - R-3472 R-1772 R-1772 - R-3286-8V R-3287-10V R-3287-SB10 R-1772 R-3286-8V R-1772 PER MAN. - - R-1772 - RIM 852.00 851.30 851.98 852.19 851.87 851.54 850.58 849.65 849.96 851.18 850.35 850.57 850.45 850.81 850.97 851.19 INCOMING PIPE DATA (DIRECTION) [FROM STR] 12" RCP 846.24 (W) [] 12" RCP 846.20 (S) [] 10" PVC Pipe 846.58 (SE) [] 18" RCP 845.73 (S) [101] 12" RCP 847.43 (SW) [102] 18" RCP 845.16 (W) [103] 18" RCP 844.93 (S) [104] 30" RCP 842.56 (W) [] 6" PVC Pipe 847.24 (S) [] 12" RCP 846.70 (W) [201] 6" PVC Pipe 847.24 (S) [] 15" RCP 845.96 (W) [202] 12" RCP 845.76 (N) [203] 6" PVC Pipe 847.48 (S) [] 18" RCP 845.60 (W) [204] 12" RCP 846.60 (S) [205] 18" RCP 841.04 (W) [206] 18" RCP 841.00 (S) [207] 15" RCP 841.00 (W) [300-OUT] 15" RCP 840.25 (SW) [301] 30" RCP 839.97 (S) [] 15" RCP 842.97 (SE) [] OUTGOING PIPE DATA (DIRECTION) [TO STR] 18" RCP 846.08 (N) [103] 12" RCP 847.54 (NE) [103] 18" RCP 845.63 (E) [104] 18" RCP 845.06 (N) [105] 30" RCP 840.05 (NE) [] 12" RCP 847.03 (E) [202] 15" RCP 846.20 (E) [204] 12" RCP 845.96 (S) [204] 18" RCP 845.66 (E) [206] 12" RCP 846.73 (N) [206] 18" RCP 841.10 (E) [207] 18" RCP 841.04 (N) [300-IN] 15" RCP 841.00 (E) [301] 15" RCP 840.25 (NE) [302] 30" RCP 839.87 (NW) [] OUTGOING PIPE L.F. 58' 33' 67' 19' 2' 104' 75' 26' 16' 42' 9' 8' 8' 13' 2' OUTGOING PIPE SIZE 18" 12" 18" 18" 30" 12" 15" 12" 18" 12" 18" 18" 15" 15" 30" OUTGOING GRADE 0.60% 0.32% 0.70% 0.70% 0.00% 0.32% 0.32% 0.75% 0.40% 0.32% 0.55% 0.55% 0.00% 0.00% 0.00% CONNECT TO STR. 103 103 104 105 202 204 204 206 206 207 300-IN 301 302 REMARKS CONNECT 10" ROOF DRAIN - - - - CONNECT 6" ROOF DRAIN CONNECT 6" ROOF DRAIN - CONNECT 6" ROOF DRAIN CONNECT 8" ROOF DRAIN - - - - - - STRUCTURE TABLE STR. NO. SAN-1 SAN-2 SAN-3 SAN-4 SAN-5 SAN-6 STRUCTURE 48" SAN. MANHOLE 48" SAN. MANHOLE 48" SAN. MANHOLE 48" SAN. MANHOLE 48" SAN. MANHOLE Existing Manhole STRUCTURE DETAIL REFERENCE Sheet SU2.2 Sheet SU2.2 Sheet SU2.2 Sheet SU2.2 Sheet SU2.2 - CASTING TYPE R-1642-A R-1642-A R-1642-A R-1642-A R-1642-A - RIM 851.97 851.83 852.22 851.07 852.10 851.99 INCOMING PIPE DATA (DIRECTION) [FROM STR] 12" PVC Pipe 839.55 (N) [SAN-2] 12" PVC Pipe 839.67 (E) [SAN-3] 12" PVC Pipe 839.93 (E) [SAN-4] 12" PVC Pipe 840.16 (S) [SAN-5] 12" PVC Pipe 840.28 (E) [SAN-6] 12" PVC Pipe 840.34 (E) [] OUTGOING PIPE DATA (DIRECTION) [TO STR] 12" PVC Pipe 839.53 (SW) [] 12" PVC Pipe 839.67 (S) [SAN-1] 12" PVC Pipe 839.93 (W) [SAN-2] 12" PVC Pipe 840.16 (W) [SAN-3] 12" PVC Pipe 840.28 (N) [SAN-4] 12" PVC Pipe 840.29 (W) [SAN-5] OUTGOING PIPE L.F. 2' 57' 122' 111' 59' 7' OUTGOING PIPE SIZE 12" 12" 12" 12" 12" 12" OUTGOING GRADE 0.00% 0.21% 0.21% 0.21% 0.21% 0.21% CONNECT TO STR. SAN-1 SAN-2 SAN-3 SAN-4 SAN-5 REMARKS - - - - - - 20 6002040 COPYRIGHT 2023 BY FANNING/HOWEY ASSOCIATES, INC. WWW.FHAI.COM ARCHITECT PROJECT NUMBER: 221165.01 CARMEL HIGH SCHOOL POLYTECHNIC ADDITION AND RENOVATION CARMEL CLAY SCHOOLS 520 E MAIN STREET CARMEL, IN 46032 PROJECT ISSUE DATE: 08/31/2023 DRAWN BY: ARS 317-848-0966 350 E NEW YORK ST# 300, INDIANAPOLIS, IN 46204 REV. NO.DESCRIPTION DATE CONSULTANT 100% CONSTRUCTION DOCUMENTS KEY PLAN UNIT A NEW ADDITION PLANNORTHTLF-ENGINEERS.COM317-334-1500 3901 WEST 86TH STREET, ST# 200, INDIANAPOLIS, IN 46268 19700317 No. INLETS, VALVES, AND MARKS MADE UPON THE GROUND BY ALSO BE OTHER EXISTING UNDERGROUND UTILITIES FOR WHICH THERE IS NO ABOVE GROUND EVIDENCE OR FOR EXACT LOCATIONS OF EXISTING UNDERGROUND UTILITIES SHALL BE VERIFIED BY CONTRACTOR PRIOR TO ANY AND WHICH NO ABOVE GROUND EVIDENCE WAS OBSERVED. THE OTHERS) AND ARE SPECULATIVE IN NATURE. THERE MAY ALL CONSTRUCTION. THE LOCATIONS OF ALL EXISTING UNDERGROUND UTILITIES EVIDENCE (INCLUDING, BUT NOT LIMITED TO, MANHOLES, SHOWN ON THE PLAN ARE BASED UPON ABOVE GROUND CAUTION !! Know what's below. before you dig.Call R Call 811 or 1-800-382-5544 Before You Begin Any Digging Project. Call 48 hours or 2 working days before you dig. It's Fast, It's Easy and It's the Law in the state of Indiana! SU1.1 UTILITY PLAN UTILITY PLAN LEGEND EXISTING STORM LINE EXISTING SANITARY LINE EXISTING GAS LINE EXISTING WATER LINE EXISTING LIGHT POLE EXISTING STORM STRUCTURE EXISTING SANITARY STRUCTURE EXISTING FIRE HYDRANT PROPOSED STORM LINE PROPOSED SANITARY LINE PROPOSED MANHOLE STRUCTURE PROPOSED STORM INLET STRUCTURE 1.SEE DRAWING GD0.1 FOR GENERAL NOTES AND ADDITIONAL LEGEND. 2.TOPOGRAPHIC CONDITIONS AND EXISTING UTILITIES SHOWN WERE PROVIDED BY THE SURVEYOR. THE ENGINEER MAKES NO GUARANTEES THAT THE UNDERGROUND UTILITIES SHOWN COMPRISE ALL SUCH UTILITIES IN THE AREA, EITHER IN SERVICE OR ABANDONED. 3.CONTRACTOR SHALL VERIFY ALL EXISTING CONDITIONS IN THE PROJECT AREA INCLUDING UNDERGROUND UTILITY CONDITIONS, LOCATION AND DEPTH PRIOR TO ANY OTHER SITE CONSTRUCTION. REPORT ANY DISCREPANCIES TO THE ENGINEER. GENERAL NOTES UTILITY KEYNOTES 1.PROPOSED STORM CLEANOUT 2.PROPOSED 6" PVC STORM LATERAL @ 1.50% MIN. SLOPE 3.PROPOSED 10" PVC STORM LATERAL @ 1.50% MIN. SLOPE 4.PROPOSED 6" PERIMETER UNDERDRAIN, CONNECT TO ST-301. 5.PROPOSED PAVEMENT UNDERDRAIN, REQUIRED FOR EACH PROPOSED INLET. 6.PROPOSED UNDERGROUND DETENTION CHAMBER SYSTEM. STORM TECH MC-3500 (32 CHAMBERS) 7.CONNECT PROPOSED STORM PIPE(S) TO EXISTING STRUCTURE. MODIFY OR REPLACE EXISTING STORM STRUCTURE AS NECESSARY. ADJUST TOP OF CASTING TO MATCH PROPOSED GRADE AS NECESSARY. 8.PROPOSED OUTLET CONTROL STORM MANHOLE 9.PROPOSED ELECTRICAL CONDUITS, SEE ELECTRICAL SITE PLAN FOR ADDITIONAL INFORMATION. 10.PROPOSED ELECTRICAL MANHOLE. SEE ELECTRICAL SITE PLAN FOR ADDITIONAL INFORMATION. 11.PROPOSED SANITARY CLEANOUT 12.PROPOSED 6" PVC SANITARY LATERAL @ 1.04% MIN. SLOPE 13.PROPOSED SANITARY MANHOLE 14.CONNECT PROPOSED SANITARY PIPE(S) TO EXISTING STRUCTURE. MODIFY EXISTING SANITARY STRUCTURE AS NECESSARY. 15.PROPOSED 12" PVC SANITARY SEWER 16.GREASE INTERCEPTOR (SEE PLUMBING PLANS) 17.MONITORING MANHOLE / SAMPLING PORT (SEE PLUMBING PLANS) 18.PROPOSED 4" GAS LINE (COORDINATE INSTALLATION WITH CENTERPOINT ENERGY) 19.PROPOSED AQUA-SWIRL XC-6 BMP STRUCTURE 20.PROPOSED 10" DUCTILE IRON PIPE WATER LINE 21.FIRE HYDRANT ASSEMBLY 22.POST INDICATOR VALVE (P.I.V.) 23.PROPOSED 8" DUCTILE IRON PIPE FIRE PROTECTION LINE 24.PROPOSED 8" PVC STORM LATERAL @ 1.50% MIN. SLOPE EXISTING BUILDING EXISTING BUILDING EXISTING BUILDING PROPOSED / RELOCATED GAS LINE 1 TAC REVIEW 9-19-2023 BMP - AQUASWIRL XC-6 (ST-207) SU2.1 SITE UTILITY DETAILS COPYRIGHT 2023 BY FANNING/HOWEY ASSOCIATES, INC. WWW.FHAI.COM ARCHITECT PROJECT NUMBER: 221165.01 CARMEL HIGH SCHOOL POLYTECHNIC ADDITION AND RENOVATION CARMEL CLAY SCHOOLS 520 E MAIN STREET CARMEL, IN 46032 PROJECT ISSUE DATE: 08/31/2023 DRAWN BY: ARS 317-848-0966 350 E NEW YORK ST# 300, INDIANAPOLIS, IN 46204 REV. NO.DESCRIPTION DATE CONSULTANT 100% CONSTRUCTION DOCUMENTS KEY PLAN UNIT A NEW ADDITION PLANNORTHTLF-ENGINEERS.COM317-334-1500 3901 WEST 86TH STREET, ST# 200, INDIANAPOLIS, IN 46268 19700317 No. SEE STRUCTURE DATA TABLE FOR CASTING TYPE AND ELEVATIONFINISH GRADE ASPHALTIC MASTIC OR BUTYL RUBBER SEAL BETWEEN JOINTS PRECAST CONCRETE ADJUSTING RINGS AS NEEDED (12" OF RINGS MAX.) ECCENTRIC CONE OR REDUCER CAP AS REQUIRED BY SITE CONDITIONS. CONE TOP TO MATCH ADJUSTING RING PROFILE. 48" DIA.5"16"TYP.PRECAST CONCRETE SECTIONS PREFORMED HOLE TO MAX. OF PIPE O.D. + 6" W/ NON SHRINK CEMENT GROUT BENCHWALLS AT MIN. 1/2" PER FOOT SLOPE. BENCHWALLS TO BE CONSTRUCTED TO SPRING LINE OF PIPE. MANHOLE BASE SET ON 6" OF #8 OR #2 STONECOMPACTED SUBGRADE PLASTIC ENCAPSULATED STEEL MANHOLE STEPS O-RING GASKET ASPHALTIC MASTIC OR BUTYL RUBBER SEAL AT JOINTS BASE 6" OR 8" PER SECTION 3"#4 BAR @ 12" o.c. EACH WAY (STEEL MESH AREA = 0.12 SQ. IN./SQ. FT.) STORM MANHOLE TYPE "C" DETAIL 1/2" = 1'-0" 24" DIA. SEE STRUCTURE DATA TABLE FOR PIPE SIZE AND INVERT ELEV. NOTES: 1.MANHOLE CONFORMS TO ASTM C478, JOINTS CONFORM TO ASTM C443. 2.ALL STORM SEWER CASTINGS SHALL BE MARKED "DUMP NO WASTE DRAINS TO WATERWAYS". 3.SEE UTILITY PLAN FOR STORM SEWER STRUCTURE DATA TABLE.VARIES16" MIN.12" TO 15""A" PIPE SIZE 24" X 24" STRUCTURE SIZING CHART "F"30" X 30" "M"24" X 36" 1" = 1'-0" STORM INLET DETAIL INSIDE DIMENSIONS INLET TYPE 8"6" CLASS "A" PRECAST REINFORCED CONCRETE BOX SEE STRUCTURE DATA TABLE FOR PIPE SIZE AND INVERT ELEV. INSIDE DIMENSION * SEE SIZING CHART ABOVE SEE STRUCTURE DATA TABLE FOR CASTING TYPE AND ELEVATION BASE SET ON 6" OF #8 OR #2 STONE COMPACTED SUBGRADEINSIDE DIMENSION* SEE SIZING CHART ABOVEMAX. NUMBER OF SIDES OF THE INLET WITH PIPES 3 18" TO 24" 315" TO 18" 3 NOTES: 1.ALL STORM SEWER CASTINGS SHALL BE MARKED "DUMP NO WASTE DRAINS TO WATERWAYS". 2.SEE UTILITY PLAN FOR STORM SEWER STRUCTURE DATA TABLE. FOR PIPE LOCATED IN AND WITHIN 5' OF PAVED AREAS FOR PIPE LOCATED IN GRASSED AREAS STORM SEWER (PVC & HDPE) TRENCH DETAIL NO SCALE NOTES: 1.ALL BEDDING & INITIAL BACKFILL SHALL BE INSTALLED IN 6" TO 12" BALANCED LIFTS. 2.A MIN. 9" CLEARANCE EACH SIDE OR PIPE FOR 42" DIA. AND LESS. Bc MIN.4"12"MIN. 1.25 O.D.+12" MIN. 6" TOPSOIL OUTSIDE PAVEMENT LIMITS PAVEMENT SECTION REGULAR BACKFILL - GREATER THAN 5' FROM EDGE OF PAVEMENT COMPACTED 90% REGULAR BACKFILL- GREATER THAN 5' FROM EDGE OF PAVEMENT COMPACTED TO 90% #8 CRUSHED STONE OR EQUIVALENT CLASS 1 MATERIAL HAND TAMPED OR WALKED INTO PLACE "B" BORROW (INDOT SPEC.) OR EQUIVALENT GRANULAR MATERIAL COMPACTED TO 95% STANDARD PROCTER DENSITY 1/6 Bc3" 4" 6" LEGEND MATERIAL BELOW PIPE d = DEPTH OF BEDDING D = INSIDE DIAMETER Bc = OUTSIDE DIAMETER 30" TO 60" 27" & SMALLER 66" & LARGER D (d) MIN. 3/4" = 1'-0" DEPTH OF BEDDING MATERIAL BELOW PIPE NOTES: 1.ALL BEDDING & INITIAL BACKFILL SHALL BE INSTALLED IN 6" TO 12" BALANCED LIFTS. 2.A MIN. 9" CLEARANCE EACH SIDE OR PIPE FOR 42" DIA. AND LESS. REGULAR BACKFILL - GREATER THAN 5' FROM EDGE OF PAVEMENT COMPACTED 90% MIN. 1.25 O.D.+12" FOR PIPE LOCATED IN AND WITHIN 5' OF PAVED AREAS FOR PIPE LOCATED IN GRASSED AREAS Bc MIN. 6" TOPSOIL IN NON-PAVED AREAS PAVEMENT SECTION "B" BORROW (INDOT SPEC.) OR EQUIVALENET GRANULAR MATERIAL COMPACTED TO 95% STANDARD PROCTER DENSITY "B" BORROW (INDOT SPEC.) OR EQUIVALENET GRANULAR MATERIAL COMPACTED TO 95% STANDARD PROCTER DENSITY dSTORM SEWER (RCP) TRENCH DETAIL SLOPE MIN. NOTE: CLEANOUTS IN PAVED AREAS TO BE ACCESSIBLE VIA YARD BOXES OR EXTENDED FLUSH WITH THE PAVING. COVER SHOULD BE THREADED TYPE, WATER TIGHT AND CAPPED. 1/2" = 1'-0" CLEANOUT DETAILVARIESFINISH GRADE STORM 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 CLEANOUT CASTING - JAY R. SMITH 4253 SERIES OR EQUAL CONCRETE COLLAR (CONCRETE SHALL NOT BE IN CONTACT w/ PIPE)20 L.F. (MIN,)20 L.F. (MIN,)20 L.F. (MIN,)2 0 L . F . (M I N , ) 20 L.F. (MIN,)20 L.F. (MIN,)20 L.F. (MIN,)20 L.F. (MIN,)2'-0"VARIES4" DIA. PERF. PVC SDR-35 PIPE 1'-0"4"NON WOVEN FILTER CLOTH #8 WASHED AGGREGATE COMPACTED AGGREGATE BASE PAVEMENT CURB INLET NOTES: 1.TAP STRUCTURES IN PAVEMENT AS SHOWN OR AS DIRECTED ON THE PLAN SHEET 2.ADJUST UNDERDRAIN AS REQUIRED TO AVOID SEWER LINES AND OTHER UTILITIES. 3.GROUT SOLID THE CONNECTION TO STORM STRUCTURE PAVEMENT UNDERDRAIN DETAIL NONE PRECAST CONCRETE ADJUSTING RING AS NEEDED (4 MAX.) PRECAST CONCRETE SECTIONS OUTLET CONTROL STRUCTURE DETAIL NOT TO SCALE ASPHALTIC MASTIC OR BUTYL RUBBER SEAL BETWEEN JOINTS 12" THICK STEEL PLATE RESTRICTOR #4 BAR @ 12" o.c. EACH WAY (STEEL MESH AREA = 0.12 SQ. IN./SQ. FT.)15" RCPINFLUENTPIPE1 5 " RC POUT LE T P IP E 12" THICK STEEL PLATE RESTRICTOR 1/2" THICK STEEL PLATE ANGLE BRACKET (TYP.) MANHOLE BASE SET ON 6" OF #8 OR #2 STONECOMPACTED SUBGRADE 24" DIA. NEENAH R-1772 T.O.R.= 850.97 FINISH GRADE TOP OF STEEL PLATE ELEV = 844.72 FRONT VIEW 4' DIA. 11" DIA. ORIFICE INV. = 840.25 GALVANIZED STEEL GRATE (APPROX. 18"x18"x4") CENTERED ON EACH ORIFICE OPENING AND WELDED TO STEEL PLATE GALVANIZED STEEL GRATE (APPROX. 18"x18"x4") CENTERED ON ORIFICE OPENING AND WELDED TO STEEL PLATE NOTE: SEE "STANDARD 4' STORM MANHOLE DETAIL" ON THIS SHEET FOR ADDITION DETAIL INFORMATION. MANHOLE BASE SET ON 6" OF #8 OR #2 STONECOMPACTED SUBGRADE 24" DIA. NEENAH R-1772 T.O.R.= 850.97 FINISH GRADE TOP OF STEEL PLATE 100 YR. ELEV = 844.72 SIDE VIEW 11" DIA. ORIFICE INV. = 840.25 15" RCP INFLUENT INV. = 841.00 15" RCP OUTLET INV. = 840.25 BASE 6" OR 8" PER SECTION MANHOLE BOTTOM INV. = 838.2516"PLASTIC ENCAPSULATED STEEL MANHOLE STEPS O-RING GASKET ASPHALTIC MASTIC OR BUTYL RUBBER SEAL AT JOINTS 6" PERFORATED PERIMETER DRAIN PIPE, INV. = 840.25 6" PERFORATED PERIMETER DRAIN PIPE 1 TAC REVIEW 9-19-2023 TLF#2023-119 20-September-2023 IX – 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 Underground Detention Basin Every 6 months As necessary (at a minimum, annually) TLF#2023-119 20-September-2023 X – 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: