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HomeMy WebLinkAboutO&M Manual 03-21-25Stormwater Operations and Maintenance Manual Carmel Gateway West Lawn – Carmel, IN Prepared for: Rubenstein Partners C/O – RPO Property Management, LLC 600 E 96th Street, STE 150 Indianapolis, IN 46240 Prepared by: Kimley-Horn and Associates, Inc. 500 East 96th Street, Suite 300 Indianapolis, Indiana 46240 Contact: Bryan Sheward, PE I affirm, under penalties for perjury, that I have taken reasonable care to redact each Social Security number in this document, unless required by law. – Bryan Sheward Prepared on: March 21, 2025 Water Quality BMPs Water Quality Best Management Practices (BMPs) are vegetative, structural, and other measures that reduce or eliminate pollutants that might otherwise be carried by surface runoff. Potential pollutant sources include litter form patrons and automobile fluids on the pavement including heavy metals, oil, grease, and alcohols. The stormwater for the site drains via sheet flow, through inlet filters, into the storm network that releases into an existing retention pond to the south of the site. BMP Owner Contact Information and Billing Contact Name: Parkwood Six, LLC Contact: Patrick Moyers Address: 600 E. 96th St., STE 150, Indianapolis, Indiana 46240 Business Phone Number: (317) 735-5272 Party Responsible The BMP owner agrees to pay all the fees required by the City of Carmel, including annual inspection fees, and/or any additional fees required. Routine inspections are the responsibility of the BMP owner. Maintenance is also the responsibility of the owner. The City of Carmel must be notified of any changes in BMP ownership, major repairs, or BMP failures in writing within 30 days. The letter should be addressed to: Storm Water Program Carmel Engineering Dept. One Civic Square Carmel, IN 46032 In the event that the City of Carmel finds a BMP in need of maintenance or repair, the City of Carmel will notify the BMP owner of the necessary maintenance or repairs and give the BMP Owner a timeframe for completing the maintenance or repairs. If the maintenance or repairs are not completed within the designated timeframe, the City shall perform the repairs or maintenance and bill the BMP Owner the actual cost of the work. Submittal of annual inspection reports to the City of Carmel Engineering are due one year after construction is completed, with subsequent reports due each year within the same month of the initial report, any deficiencies found during the inspections should be addressed, and the BMP owner faces enforcement action from the City 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. Material Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be handled and disposed of 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. Safety Work inside underground structures requires special OSHA-required confined space equipment and procedures. The most practical option to perform maintenance or repairs is to contract with a sewer- cleaning contractor Storm Structure Maintenance and Inspection Storm structures on site are identified within the construction plans set. Storm structures are set at storm sewer pipe connections. Unless you have OSHA approved training and equipment, never enter a manhole. Inspection and maintenance of all storm structures is required per the table below. Storm Structure Maintenance and Inspection Inspection All inlet castings should be inspected every 6 months and after each major rainfall event. More frequent inspections should be performed in areas where there is higher potential for trash or litter and during the fall when leaves are present on the ground. Check the frame and lid for cracks and wear, such as rocking lids or lids moved by traffic. Storm structures and the surrounding areas should be inspected annually for pollutants such as leaks from dumpsters, minor spills, and oil dumping. Take action to have the pollutant source removed. Cleaning Clean structures when there is a blockage of a water flow path or when sediment depth reaches 10% of the pipe diameter. Cleaning should be performed in a way that ensures removed sediment and water is not discharged back into the storm sewer. Materials Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be disposed in the garbage as solid waste. Water should be disposed of in a sanitary sewer after oils are removed using oil absorbent materials or other mechanical means. Used oil absorbents should be recycled or disposed according to the manufacturer's instructions. Repairs Repair all security and access features so they are fully functional. This includes locking lids, covers, and ladder rungs. Replace broken parts or lids that rock or are moved by traffic. Storm Sewer Maintenance and Inspection Storm sewer pipes convey stormwater. Pipes are built from many materials and are sometimes perforated to allow stormwater to infiltrate into the ground. Storm pipes are cleaned to remove sediment or blockages when problems are identified. Storm pipes must be clear of obstructions and breaks to prevent localized flooding. Storm sewer maintenance and inspection required per the table below. Storm Sewer Maintenance and Inspection Inspection Pipes are difficult to inspect requiring special equipment and training. Usually, if a problem occurs the owner needs to call a sewer or plumbing contractor to inspect, repair or clean pipelines. Cleaning Clean pipes when sediment depth is greater than 10% of the pipe diameter. When cleaning a pipe, minimize sediment and debris discharges from pipes to the storm sewer. Install downstream debris traps (where applicable) before cleaning and then remove material. Generally, use mechanical methods to remove root obstructions from inside storm sewer pipes. Do not put root-dissolving chemicals in storm sewer pipes. If there is a problem, remove the vegetation over the line. Materials Handling Sediment and debris from pipes should be disposed in the garbage as solid waste. Pick out any rocks first. Repairs Repair or replace pipes when a dent or break closes more than 20 percent of the pipe diameter. Repair or replace pipes damaged by deterioration. Turf Vegetative Coverage All non-paved areas that are not landscaped shall be vegetated to prevent erosion and sediment buildup in storm sewer facilities onsite or downstream of the project site. Seed shall be reapplied as required to establish healthy, dense coverage. The following Operation & Maintenance (O & M) procedures are the specific responsibilities for the owner. Refer to the Tabular Maintenance Schedule included in Attachment A of this report for maintenance requirements. Inlet Filters Maintenance and Inspection The inlet filters will need to be regularly inspected and maintained to ensure adequate performance. The following Operation & Maintenance (O&M) procedures are the specific responsibilities for the owner. Refer to Attachment B for more details. Right of Entry This Operation and Maintenance Manual is submitted to the City with the intent to ensure the longevity and adequate functioning of the BMPs owned by Parkwood Six, LLC. By submitting this Operation and Maintenance Manual to the City of Carmel with plans to construct said BMPs, the BMP owner noted above grants personnel from the City of Carmel the right to enter the development to inspect and maintain the BMP. The BMP owner noted above agrees to follow and abide by the inspection schedule and maintenance activities listed in this manual. The BMP owner noted above is responsible for any additional maintenance and/or repair activities to maintain the function and longevity of the BMPs. Owner Acknowledgement Signature Date Printed STATE OF _______________) ) SS: COUNTY OF ____________ ) BEFORE ME THE UNDERSIGNED NOTARY PUBLIC, IN AND FOR THE SAID COUNTY AND STATE, PERSONALLY APPEARED _____________________ AND ACKNOWLEDGED THE EXECUTION OF THE FORGOING INSTRUMENT AS THEIR VOLUNTARY ACT AND DEED. WITNESS MY HAND AND NOTARY SEAL THIS _____ DAY OF ____________________, 2023. SIGNATURE: _____________________PRINTED NAME: ___________________ MY COMMISSION EXPIRES: ______________COUNTY OF RESIDENCE: _______________ 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 the obligations and responsibilities of Owner as set forth herein. Owner Acknowledgement Signature Date Printed STATE OF _______________ ) ) SS: COUNTY OF ____________ ) BEFORE ME THE UNDERSIGNED NOTARY PUBLIC, IN AND FOR THE SAID COUNTY AND STATE, PERSONALLY APPEARED _____________________ AND ACKNOWLEDGED THE EXECUTION OF THE FORGOING INSTRUMENT AS THEIR VOLUNTARY ACT AND DEED. WITNESS MY HAND AND NOTARY SEAL THIS _____ DAY OF ____________________, 2025. SIGNATURE: _____________________PRINTED NAME: ___________________ MY COMMISSION EXPIRES: ______________COUNTY OF RESIDENCE: _______________ List of Attachments Attachment A: Storm Sewer and Structure Inspection and Maintenance Logs Attachment B:Inlet Filter Operation and Maintenance Guide Attachment A: Storm Sewer and Structure Inspection and Maintenance Logs Storm Sewers and Storm Structures Operation, Maintenance, and Management Inspection Checklist Project: Location: Date: Time: Inpsector: Title: Signature: Visual evidence of broken or cracked frame or casting? Clear of debris? Debris within structure? 2. Condition of Frame and Casting 1. Structural Condition Any indications of structural failure? Pipes are clear of debris? Storm Structures Maintenance Item Satisfactory / Unsatisfactory Comments Storm Sewers 1. Structural Condition & Capacity CommentsSatisfactory / UnsatisfactoryMaintenance Item Indications of deformed or sagging pipes? Surcharges onsite to indicate a blockage? Maintenance Standards derived from the Washington State Department of Ecology’s Stormwater Management Manual for Eastern Washington (September 2004). Page 5 Maintenance Standards Conveyance Systems (Pipes and Ditches) Maintenance Code Type Conditions When Maintenance Is Needed 1 Sediment Sediment or debris exceeds 20% of pipe diameter or 20% of debris barrier openings. Accumulated sediment that exceeds 20% of the design depth of the ditch. 2 Trash & Debris Trash and debris accumulated in pipe or ditch. Visual evidence of dumping 3 Vegetation Vegetation reduces movement of water through pipes. Excessive vegetation that reduces free movement of water through ditches. 4 Water Quality Any evidence of oil, gasoline, contaminants or other pollutants. Water flowing in pipes or ditch during dry weather – report as potential illicit discharge concern. 5 Water Flow Impeded water flow due to vegetation or sediment (use appropriate code from above). Standing water in the pipe or swale between storm events. 6 Erosion Erosion damage over 2 inches deep where cause is still present or there is potential for continued erosion. Native soil is visible beneath the rock lining of a conveyance ditch. 7 Cover/Frame/ Grate N/A 8 Structure Debris barrier/trash rack is missing or not attached to pipe. Debris barrier/trash rack bars are bent by more than 3 inches. Debris barrier/trash rack bars are loose or rust is causing 50% deterioration to any part of the barrier. 9 Damaged Pipes Protective coating is damaged or rust is causing more than 50% deterioration to any part of pipe. Any dent that decreases the flow area by more than 20% or puncture that impacts performance. 10 Mosquito Vector Breeding Suitable habitat exists for mosquito production (e.g. standing water for more than 72 hours in areas accessible to mosquitoes.) 11 Other 12 Could Not Locate Field inspectors are unable to locate the pipe or ditch. Attachment B: Inlet Filter Operation and Maintenance Guide Advanced Drainage Systems, Flexstorm Inlet Filters 24137 W. 111th St. Unit A Naperville, IL 60564 ADS Flexstorm Inlet Filters Operation and Maintenance Guide Date Task Performed Initials __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ Installation Instructions: 1. Remove grate from the inlet. 2. Clean debris from the ledges of the inlet. 3. Place the inlet filter onto the load bearing ledges of the structure. 4. Replace the grate and confirm it’s not elevated more than 1/8”. Frequency of Inspections: 1. Inspection should occur following rain events >½”. 2. Temporary use filters should be monitored accordingly to current site runoff conditions. 3. Permanent use filter inspections to occur a minimum of 3 times per year and in snowfall affected regions, inspections prior to and after snowfall season. 4. Industrial application site inspections (loading ramps, wash racks & maintenance facilities) to be scheduled on a recurring basis no less than 4 times per year or as needed. Maintenance Guidelines: 1. Empty the filter bag manually or by industrial vacuum taking care not to damage the geotextile bag when more than half filled or during scheduled inspection period. 2. Remove compacted silt from sediment bag and flush with medium spray. 3. Permanent filter “PCP” style bags should be pressed or wrung to recover retained oils. 4. Cleartec oil skimmer pouches solidify and darken when saturated, indicating time for replacement. 5. Dispose of all oil contaminated products and recovered oils in accordance with EPA guidelines. Cleartec pouches, since a solidifier, will not leach and can be disposed of directly. 6. Inspect and replace bag if torn or punctured. Sediment Bag Replacement: 1. Remove the bag by loosening or cutting off clamping band. 2. Take the new correctly sized sediment bag and secure hose clamping band to the frame channel as previously removed. 3. Ensure Bag is secure and there is no slack around perimeter. Inlet ID: ______________ Advanced Drainage Systems, Flexstorm Inlet Filters 24137 W. 111th St. Unit A Naperville, IL 60564 Figure 1 ADS Flexstorm Inlet Filters Replacement Bag Guide After following the Flexstorm Operation and Maintenance Guide and performing routine maintenance, you may notice damage or degradation of the inlet filter’s geotextile bag. This will require replacement of the geotextile bag portion of your inlet filter device. Both the Flexstorm Pure (permanent) and Catch-it (temporary) are applicable filters for replacement bags. If a Lite filter is damaged, please replace the entire filter unit. Sizing the New Replacement Bag: 1. Locate the inlet filter’s label attached on the inside visible perimeter of the filter frame. A. Note the bag size and style listed: (##” x ##” & STYLE) as highlighted in Figure 1. OR 2. If the label cannot be located, please remove the filter from the inlet and take off the existing bag. Measure the length and width of the frame perimeter retaining the bag’s hose clamp as shown in Figure 2. Note, if your filter is round, please provide the outer diameter of the bottom framing channel. A. It is necessary to also provide the bag style that was originally provided on the filter. If this is a Catch- it, you will have the standard “FX” bag. If this is a Pure, there will be a series of options for replacement bags pertaining to treatment properties required (“FX”, “FXP”, or “PCP”). Sediment Bag Replacement: 1. Remove the bag by loosening or cutting off clamping band. 2. Take the new correctly sized geotextile bag and secure the hose clamping band to the frame channel as previously removed. 3. Ensure Bag is secure and there is no slack around perimeter. Figure 2 1 1 2 2 3 3 4 4 A A B B C C D D N/ASCALE ADVANCED DRAINAGE SYSTEMS FLEXSTORM INLET FILTERS, INC. WWW.ADSPIPE.COM PH. 1-800-821-6710 Pure Nyloplast Submittal DATE C 7/11/2022 DWG NO REV A SIZE SHEET 1 OF 1 ADS FLEXSTORM PURE INLET FILTERS FOR NYLOPLAST BASINS BYPASS AREA STAINLESS STEEL FRAMING REPLACEABLE GEOTEXTILE BAG NOTES: 1. ALL FRAMING IS CONSTRUCTED OF 304 STAINLESS STEEL FOR 25 YEAR SERVICE LIFE RATING. 2. TOTAL BYPASS CAPACITY WILL VARY WITH EACH SIZE DRAINAGE STRUCTURE. ADS DESIGNS FRAMING BYPASS TO MEET OR EXCEED THE DESIGN FLOW OF THE PARTICULAR DRAINAGE STRUCTURE. 3. UPON ORDERING, CONFIRMATION OF THE INLET SPECIFICATION, PRECAST/FOUNDRY CASTING MAKE AND MODEL, OR DETAILED DIMENSIONAL FORMS MUST BE PROVIDED TO CONFIGURE AND ASSEMBLE AN INLET FILTER. 4. ALL FILTERS MEET ASTM D8057 SPECIFICATIONS 5. FOR WRITTEN SPECIFICATIONS AND MAINTENANCE GUIDELINES VISIT WWW.ADSPIPE.COM INSTALLATION INSTRUCTIONS: 1. REMOVE GRATE. 2. CLEAN GRATE LEDGE 3. SET INLET FILTER ON ONTO LOAD BEARING LEDGE OF STRUCTURE. 4. REPLACE GRATE.