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HomeMy WebLinkAboutO&M Manual Stormwater Operation and Maintenance Manual For Carmel Medical Office Building at the Bridges 111th Street and Illinois Street Carmel, Indiana Prepared For: Cornerstone Companies, Inc. 8902 N Meridian St, Suite 205 Indianapolis, Indiana 46260 Prepared By: American Structurepoint, Inc. 9025 River Road, Suite 200 Indianapolis, Indiana 46240 (317) 547-5580 Submitted/Prepared by: Nathan Winslow, PE Kylie Bright-Schuler, EI Leo Zdanowicz, EI Submitted: May 25, 2023 I AFFIRM UNDER PENALTY OF PERJURY THAT I HAVE TAKEN REASONABLE CARE TO REDACT EACH SOCIAL SECURITY NUMBER FROM THIS DOCUMENT UNLESS OTHERWISE REQUIRED BY LAW - NATHAN WINSLOW TABLE OF CONTENTS OWNER ACKNOWLEDGMENT AGREEMENT (“AGREEMENT”) SECTION I Owner Information SECTION II Site Information SECTION III Storm Structure Maintenance SECTION IV Conveyance Maintenance (Storm Sewer) SECTION V Aqua-Swirl Systems SECTION VI Underground Detention System SECTION VII Isolator Row SECTION VIII Inspection and Maintenance Schedule/Checklist Forms SECTION IX Utility Plan and Details Operation & Maintenance Manual For Carmel Medical Office Building at the Bridges 111th Street and Illinois Street Carmel, Indiana BMP OWNER NAME Cornerstone Companies, Inc. 8902 N Meridian St, Suite 205 Indianapolis, Indiana 46260 Representative: Jeff Shively Business Phone: (317) 503-3374 E-mail: jshively@cornerstonecompaniesinc.com GENERAL INFORMATION The purpose of water quality Best Management Practices is to filter the first flush of rainwater before it enters the downstream lakes and streams. Through the use of these Best Management Practices, the sediment and pollutant load in stormwater runoff is reduced, and in many cases the quantity of stormwater water runoff generated is also reduced. The use of Best Management Practices 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 The 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 deficiencies 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. 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 Carmel, Indiana (“City”) as 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 Hamilton County by another party who assumes all of the obligations and responsibilities of Owner as set forth herein. BMPs: ADS Underground Detention, AquaSwirl XC-7, Isolator Row __________________________ ________________________ Owner Signature Date __________________________ ________________________ Printed Name Company STATE OF ________________ ) ) SS: COUNTY OF ______________ ) 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 _______________________________ Commission Expiration Date _______________________________ _______________________________ Signature Printed Name SECTION I OWNER INFORMATION OWNER INFORMATION: Cornerstone Companies, Inc. 8902 N Meridian St, Suite 205 Indianapolis, Indiana 46260 Representative: Jeff Shively Business Phone: (317) 503-3374 E-mail: jshively@cornerstonecompaniesinc.com OWNER RESPONSIBILITY: The Owner is responsible for all maintenance, including cost, associated with inspecting and maintaining the infrastructure included within this manual. SECTION II SITE INFORMATION The site contains 4 Best Management Practices (BMP) for the purpose of sediment removal. The BMP’s are an Aqua-Swirl and an Isolator Row for the north developed basin, and a dry detention basin and native vegetation for the south temporary condition until that portion of the site is further developed. The Aqua-Swirl and isolator row are located downstream of the storm network system prior to the underground detention system. The dry detention excepts sheet flow from the adjacent area that will be seeded with native vegetation, reducing runoff and erosion. See the attached site exhibits for BMP and storm sewer locations. The City of Carmel will require annual inspection reports of the water quality BMPs. 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 deficiencies found during the inspection, these should be addressed. If the inspection report is nor received within the month it is due, if there are deficiencies which are nor included in the report, of if any deficiencies included in the report are not addressed in a timely manner, the BMP owner faces enforcement action from the City. SECTION III STORM 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 (e.g. retail establishments) 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 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. SECTION IV CONVEYANCE MAINTENANCE (STORM SEWER) 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 pipelines. Cleaning Clean pipes when sediment depth is greater than ¼ of 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 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. SECTION V AQUA-SWIRL SYSTEMS The site contains an XC-7 unit located at the downstream end of the storm sewer system prior to the underground detention system. Swirl concentrators are designed to remove sediment, debris, and free oil from entering the sewer system. After construction the swirl concentrator 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 O&M Manual for the swirl concentrator 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 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 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 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. SECTION VI UNDERGROUND DETENTION SYSTEM The site contains an underground detention system on the southwest side of the proposed building. Underground detention is located under the eastern side of the parking lot. It will be used as a stormwater quality BMP for the area shown on the Utility Plan C400. The system will be comprised of ADS StormTech MC-7200 chambers. Inspection Identify and report pollutant sources to the Owner and the City of Carmel Engineering - Stormwater. Inspect the Stormtech MC-7200 Chambers for oil and other pollutants and remove any pollutants greater in volume than a surface sheen. Structures that contain a sump or elevated bypass manifold are to be inspected to ensure flow is not obstructed from sediment build-up. Cleaning The JetVac process is a sufficient process to clean the underground detention chambers. A fixed floor cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable. Apply multiple passes of JetVac until backflush water is clean. Vacuum manhole sump as required. Refer to Section X for the manufacturer’s operation and maintenance guide. Material Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. SECTION VII ISOLATOR ROWS Underground detention along with the Isolator Row (s) are located under the parking lot of the site. The Isolator Rows are a combination of the MC-7200 underground chambers wrapped with filter fabric. Refer to the attached Utility Exhibit on sheet C400 for locations. Inspection Identify and report pollutant sources to the Owner and the City of Carmel Engineering - Stormwater. Inspect the Isolator Rows for oil and other pollutants and remove any pollutants greater in volume than a surface sheen. Inspection ports are located along the Isolator Rows. Refer to the Utility Exhibit on sheet C400 for locations. Cleaning The JetVac process is a sufficient process to clean the Isolator Row PLUS. A fixed floor cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable. Apply multiple passes of JetVac until backflush water is clean. Vacuum manhole sump as required. Refer to Section X for the manufacturer’s operation and maintenance guide. Material Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. SECTION VII INSPECTION AND MAINTENANCE SCHEDULE Structure/Unit Inspection Maintenance Storm Structure Maintenance Monthly & after rain events Accumulate 6” of sediment Conveyance Maintenance (Storm Sewer) When problems occur Accumulate 6” of sediment Aqua-Swirls Every 6 months Per manufacturers designated depth Underground Detention System Every 6 months Per manufacturer’s designated depth Isolator Rows Quarterly Accumulate 3” of sediment 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: Site Name:Change in ownership since last inspection? Y N Owner Name: Owner Address: Owner Phone Number: Emergency Phone Number: Location: Date: Time: Inspector Name: Floatable Debris and Oil 1. Remove manhole lid to expose liquid surface of Aqua-SwirlTM . 2. Remove floatable debris with basket or net if any is present. 3. If a hydrocarbon spill has occurred, (e.g. more than a sheen of oil or gas is present) the system should be cleaned immediately (see "Cleaning" Figure 3). Note: Water in an Aqua-SwirlTM can appear black like oil due to the dark body of the surrounding structure. Oil appears darker than water in the system and is usually accompanied by debris (e.g. Styrofoam, etc.) with obvious signs of oil stains. The depth of oil can be measured with an oil/water interface probe, a stadia rod with water phylic paste, a coliwasa, or by simply collecting a representative sample with a jar attached to a rod. 4. If hydrocarbon absorbant floc or pads are used, these should be inspected to determine whether they are loaded with hydrocarbons. This will be indicated by a dark colaration of the pad or floc. Pads and/or floc should be removed and disposed of in accordance with City of Indianapolis and any applicable state and/or federal laws if they contain hydrocarbons. Sediment Accumulation Lower a dipstick tube equipped with a ball valve (e.g. Sludge Judge or similar device) into Aqua-SwirlTM through the service access provided. Measure the depth of the sludge. The sludge should not exceed 6" depth before maintenance. See Figures 1 and 2. 6" Figure 1 Figure 2 City of Indianapolis, Indiana Site and Owner Information Aqua-Swirl TM XCelerator ® Inspection Maintenance Items Operation, Maintenance, and Inspection Manual for BMP Owners (Note: Attach certifications for local regulatory authority including any applicable fees.) Aqua-SwirlTM O and M Manual Page 1 Diversion Structures If an external diversion structure is present on the site, this should be inspected for the following items. 1. Inspect weir or other structure 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 or decaying. 2. Inspect diversion structure and by-pass piping for signs of structural damage or blockage from debris or sediment accumulation. 3. Measure elevations on diversion weir or piping to ensure it is consistent with site plan design. 4. Inspect downstream structure in diversion system for signs of blockage or structural failure. Remove sediments, oils and other floatable pollutants with a vactor. Dispose of all waste in accordance with City of Indianapolis and any applicable state, and/or federal requirements. Oil should be pumped and removed with any liquids and sediments that have been trapped in the system. These liquids should be taken to an industrial waste water treatment facility for treatment. Liquids and solids pumped from the AquaSwirlTM should not be dumped back into the stormwater system or into a sanitary sewer. Figure 3 Note: The AquaSwirlTM is designed so that entry to the system is not necessary for inspection or maintenance. If, however, you wish to enter the system, this is an OSHA confined space entry and OSHA confined space entry procedures should be followed to enter the system. During Construction Inspect the AquaSwirlTM every three months (minimum) and clean the system as needed. The AquaSwirlTM should be inspected and cleaned at the end of construction regardless of whether it has reached its sediment or oil storage capacity. First Year Post-Construction Inspect the AquaSwirlTM every six months and clean the system as needed. Second and Subsequent Years Post-Construction If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction, the system can be inspected once annually and cleaned as needed or bi-annually at a minimum. If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction, the system should be inspected at least once every six months and cleaned as needed. If site monitoring indicates that trapped sediment hardens over time, the AquaSwirlTM should be cleaned prior to sediment hardening regardless of whether it has reached its sediment storage capacity. Bypass Structures Bypass structures should be inspected whenever the AquaSwirlTM is inspected and maintained as needed. Cleaning Inspection (continued) Maintenance Schedule Aqua-SwirlTM O and M Manual Page 2 Company Name: Street Address: City, State, Zip: Contact: Office Phone: Mobile Phone: Pager: Date of cleaning:(Next inspection should be 3 months from this date for the first year). Time of cleaning: Date of next inspection: Floatable debris present (Y/N)? Oil present (Y/N)?Oil depth (inches): Any structural damage? Y N Where? Any evidence of structural wear? Y N Where? Odors present? Y N Describe: Any plugging? Y N Describe: Activity Log Structural Conditions and Comments Maintenance Company Information Aqua-SwirlTM O and M Manual Page 3 Additional Comments and/or Actions to Be Taken Time Frame NOTES: 1. Attach site plan showing Aqua-SwirlTM location. 2. Attach detail drawing showing Aqua-SwirlTM dimensions and model number. 3. If a diversion structure is used, attached details showing basic design and elevations. NOTES Aqua-SwirlTM O and M Manual Page 4 Date Construction Started: Date Construction Ended: Activity 1 2 3 4 5 6 7 8 9 10 11 12 Inspect and Clean as Needed X X X X Inspect Bypass Structures X X X X (if applicable) and Maintain As Needed Clean System*X* * The AquaSwirlTM should be cleaned once a year regardless of whether it has reached full pollutant storage capacity during the construction phase of the project. Activity 1 2 3 4 5 6 7 8 9 10 11 12 Inspect and Clean as Needed X X Inspect Bypass Structures X X (if applicable) and Maintain As Needed Clean System*X* * The AquaSwirlTM should be cleaned at the end of the first year post construction if it is at or near its pollutant storage capcacity. Otherwise, the system can be cleaned at a later date depending on how quickly the sediment starts to harden. Activity 1 2 3 4 5 6 7 8 9 10 11 12 Inspect and Clean as Needed*X X Inspect Bypass Structures*X X (if applicable) and Maintain As Needed Clean System* *If the AquaSwirlTM did not reach full sediment or floatable pollutant capacity in the First Year Post-Construction, the system can be inspected once annually. If the AquaSwirlTM reached full sediment or floatable pollutant capacity in less than 12 months in the First Year Post-Construction, the system should be inspected as frequently as past history warrants and cleaned as needed. Regardless of whether the AquaSwirlTM reaches full sediment or floatable storage capacity, it should be cleaned frequently enough to prevent captured sediments from hardening. Normally, cleaning once every two to three years should be sufficient to prevent sediments from hardening. *The bypass system should be inspected with each AquaSwirlTM inspection and maintained as needed. Aqua-Swirl TM TABULAR MAINTENANCE SCHEDULE Second and Subsequent Years Post-Construction Month During Construction Month First Year Post-Construction Month Aqua-SwirlTM O and M Manual Page 5 Underground Detention 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 every 6 months) 1. Trash/Debris/Sediment obstructing inflow Affected Pipes: 2. Structure Condition 3. Pipe Condition 4. Other (describe) Underground Chambers 1. Debris/Sediment accumulation 2. Access condition 3. Chambers structural condition 4. Weir condition 5. Leaking chambers 6. Oil accumulation 7. Proper drainage 8. 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: Isolator® Row Plus O&M Manual 2 Looking down the Isolator Row PLUS from the manhole opening, ADS PLUS Fabric is shown between the chamber and stone base. StormTech Isolator Row PLUS with Overflow Spillway (not to scale) The Isolator® Row Plus Introduction An important component of any Stormwater Pollution Prevention Plan is inspection and maintenance. The StormTech Isolator Row Plus is a technique to inexpensively enhance Total Suspended Solids (TSS) and Total Phosphorus (TP) removal with easy access for inspection and maintenance. The Isolator Row Plus The Isolator Row Plus is a row of StormTech chambers, either SC-160, SC-310, SC-310-3, SC-740, DC-780, MC-3500 or MC-7200 models, that is surrounded with filter fabric and connected to a closely located manhole for easy access. The fabric-wrapped chambers provide for sediment settling and filtration as stormwater rises in the Isolator Row Plus and passes through the filter fabric. The open bottom chambers and perforated sidewalls (SC-310, SC- 310-3 and SC-740 models) allow stormwater to flow both vertically and horizontally out of the chambers. Sediments are captured in the Isolator Row Plus protecting the adjacent stone and chambers storage areas from sediment accumulation. ADS geotextile fabric is placed between the stone and the Isolator Row Plus chambers. The woven geotextile provides a media for stormwater filtration, a durable surface for maintenance, prevents scour of the underlying stone and remains intact during high pressure jetting. A non-woven fabric is placed over the chambers to provide a filter media for flows passing through the chamber’s sidewall. The non-woven fabric is not required over the SC-160, DC-780, MC-3500 or MC-7200 models as these chambers do not have perforated side walls. The Isolator Row Plus is designed to capture the “first flush” runoff and offers the versatility to be sized on a volume basis or a flow-rate basis. An upstream manhole provides access to the Isolator Row Plus and includes a high/low concept such that stormwater flow rates or volumes that exceed the capacity of the Isolator Row Plus bypass through a manifold to the other chambers. This is achieved with an elevated bypass manifold or a high-flow weir. This creates a differential between the Isolator Row Plus row of chambers and the manifold to the rest of the system, thus allowing for settlement time in the Isolator Row Plus. After Stormwater flows through the Isolator Row Plus and into the rest of the chamber system it is either exfiltrated into the soils below or passed at a controlled rate through an outlet manifold and outlet control structure. The Isolator Row FLAMPTM (patent pending) is a flared end ramp apparatus attached to the inlet pipe on the inside of the chamber end cap. The FLAMP provides a smooth transition from pipe invert to fabric bottom. It is configured to improve chamber function performance by enhancing outflow of solid debris that would otherwise collect at the chamber's end. It also serves to improve the fluid and solid flow into the access pipe during maintenance and cleaning and to guide cleaning and inspection equipment back into the inlet pipe when complete. The Isolator Row Plus may be part of a treatment train system. The treatment train design and pretreatment device selection by the design engineer is often driven by regulatory requirements. Whether pretreatment is used or not, StormTech recommend using the Isolator Row Plus to minimize maintenance requirements and maintenance costs. Note: See the StormTech Design Manual for detailed information on designing inlets for a StormTech system, including the Isolator Row Plus. 3 Inspection The frequency of inspection and maintenance varies by location. A routine inspection schedule needs to be established for each individual location based upon site specific variables. The type of land use (i.e. industrial, commercial, residential), anticipated pollutant load, percent imperviousness, climate, etc. all play a critical role in determining the actual frequency of inspection and maintenance practices. At a minimum, StormTech recommends annual inspections. Initially, the Isolator Row Plus should be inspected every 6 months for the first year of operation. For subsequent years, the inspection should be adjusted based upon previous observation of sediment deposition. The Isolator Row Plus incorporates a combination of standard manhole(s) and strategically located inspection ports (as needed). The inspection ports allow for easy access to the system from the surface, eliminating the need to perform a confined space entry for inspection purposes. If upon visual inspection it is found that sediment has accumulated, a stadia rod should be inserted to determine the depth of sediment. When the average depth of sediment exceeds 3 inches throughout the length of the Isolator Row Plus, clean-out should be performed. Maintenance The Isolator Row Plus was designed to reduce the cost of periodic maintenance. By “isolating” sediments to just one row, costs are dramatically reduced by eliminating the need to clean out each row of the entire storage bed. If inspection indicates the potential need for maintenance, access is provided via a manhole(s) located on the end(s) of the row for cleanout. If entry into the manhole is required, please follow local and OSHA rules for a confined space entries. Maintenance is accomplished with the JetVac process. The JetVac process utilizes a high pressure water nozzle to propel itself down the Isolator Row Plus while scouring and suspending sediments. As the nozzle is retrieved, the captured pollutants are flushed back into the manhole for vacuuming. Most sewer and pipe maintenance companies have vacuum/JetVac combination vehicles. Selection of an appropriate JetVac nozzle will improve maintenance efficiency. Fixed nozzles designed for culverts or large diameter pipe cleaning are preferable. Rear facing jets with an effective spread of at least 45” are best. StormTech recommends a maximum nozzle pressure of 2000 psi be utilized during cleaning. JetVac reels can vary in length. For ease of maintenance, ADS recommends Isolator Row Plus lengths up to 200' (61 m). The JetVac process shall only be performed on StormTech Isolator Row Plus that have ADS Plus Fabric (as specified by StormTech) over their angular base stone. Isolator Row Plus Inspection/Maintenance StormTech Isolator Row PLUS (not to scale) Note: Non-woven fabric is only required over the inlet pipe connection into the end cap for SC-160LP, DC-780, MC-3500 and MC-7200 chamber models and is not required over the entire Isolator Row PLUS. Isolator Row Plus Step By Step Maintenance Procedures Step 1 Inspect Isolator Row Plus for sediment. A) Inspection ports (if present) i. Remove lid from floor box frame ii. Remove cap from inspection riser iii. Using a flashlight and stadia rod,measure depth of sediment and record results on maintenance log. iv. If sediment is at or above 3 inch depth, proceed to Step 2. If not, proceed to Step 3. B) All Isolator Row Plus i. Remove cover from manhole at upstream end of Isolator Row Plus ii. Using a flashlight, inspect down Isolator Row Plus through outlet pipe 1. Mirrors on poles or cameras may be used to avoid a confined space entry 2. Follow OSHA regulations for confined space entry if entering manhole iii. If sediment is at or above the lower row of sidewall holes (approximately 3 inches), proceed to Step 2. If not, proceed to Step 3. Step 2 Clean out Isolator Row Plus using the JetVac process. A) A fixed floor cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable B) Apply multiple passes of JetVac until backflush water is clean C) Vacuum manhole sump as required Step 3 Replace all caps, lids and covers, record observations and actions. Step 4 Inspect & clean catch basins and manholes upstream of the StormTech system. ADS “Terms and Conditions of Sale” are available on the ADS website, www.ads-pipe.com The ADS logo and the Green Stripe are registered trademarks of Advanced Drainage Systems, Inc. StormTech® and the Isolator® Row Plus are registered trademarks of StormTech, Inc. © 2022 Advanced Drainage Systems, Inc. #11081 2/22 CS  )( Sample Maintenance Log Date Stadia Rod Readings Sedi- ment Depth (1)–(2) Observations/Actions InspectorFixed point to chamber bottom (1) Fixed point to top of sediment (2) 3/15/11 6.3 ft none New installation. Fixed point is CI frame at grade DJM 9/24/11 6.2 0.1 ft Some grit felt SM 6/20/13 5.8 0.5 ft Mucky feel, debris visible in manhole and in Isolator Row PLUS, maintenance due NV 7/7/13 6.3 ft 0 System jetted and vacuumed DJM adspipe.com 800-821-6710 SECTION IX UTILTY PLAN AND DETAILS I L L INO IS S TR E E T PITTMAN WAY EXISTING LEGEND CONSTRUCTION DOCUMENTS 9025 River Road, Suite 200 | Indianapolis, Indiana 46240 TEL 317.547.5580 | FAX 317.543.0270 www.structurepoint.com PLOT DATE: 5/26/2023 9:50 AMPLOT SCALE: 1:40EDIT DATE: 5/26/2023EDITED BY: NWINSLOWDRAWING FILE: P:\2022\00150\D. Drawings\Civil\Construction Documents\2022.00150.CE.C401.UP.dwgProject Number CERTIFIED BY ISSUANCE INDEX DATE: PROJECT PHASE: 11/15/2022 2022.00150 CARMEL MEDICAL OFFICE BUILDING AT THE BRIDGES CARMEL, INDIANA REVISION SCHEDULE NO.DESCRIPTION DATE APPROVAL PENDING NOT FOR CONSTRUCTION IN SUBMITTING BIDS IN RELIANCE ON THESE PLANS THE CONTRACTOR ASSUMES ALL RISKS OF ADDITIONAL COSTS OF REVISIONS DUE TO REQUIREMENTS OF THE OWNER OR GOVERNMENTAL AUTHORITIES AND MATERIAL REVISIONS IN THE COURSE OF COMPLETING THE FINAL DESIGN. Contact: Jeff Shively Telephone: (317) 503-3374 Email: jshively@cornerstonecompaniesinc.com C401 UTILITY PLAN UTILITY LEGEND KEYNOTES ILLINOIS STREETW 111th Street EXISTING LEGEND CONSTRUCTION DOCUMENTS 9025 River Road, Suite 200 | Indianapolis, Indiana 46240 TEL 317.547.5580 | FAX 317.543.0270 www.structurepoint.com PLOT DATE: 5/26/2023 9:50 AMPLOT SCALE: 1:40EDIT DATE: 5/26/2023EDITED BY: NWINSLOWDRAWING FILE: P:\2022\00150\D. Drawings\Civil\Construction Documents\2022.00150.CE.C401.UP.dwgProject Number CERTIFIED BY ISSUANCE INDEX DATE: PROJECT PHASE: 11/15/2022 2022.00150 CARMEL MEDICAL OFFICE BUILDING AT THE BRIDGES CARMEL, INDIANA REVISION SCHEDULE NO.DESCRIPTION DATE APPROVAL PENDING NOT FOR CONSTRUCTION IN SUBMITTING BIDS IN RELIANCE ON THESE PLANS THE CONTRACTOR ASSUMES ALL RISKS OF ADDITIONAL COSTS OF REVISIONS DUE TO REQUIREMENTS OF THE OWNER OR GOVERNMENTAL AUTHORITIES AND MATERIAL REVISIONS IN THE COURSE OF COMPLETING THE FINAL DESIGN. Contact: Jeff Shively Telephone: (317) 503-3374 Email: jshively@cornerstonecompaniesinc.com C402 UTILITY PLAN KEYNOTES UTILITY LEGEND CONSTRUCTION DOCUMENTS 9025 River Road, Suite 200 | Indianapolis, Indiana 46240 TEL 317.547.5580 | FAX 317.543.0270 www.structurepoint.com PLOT DATE: 5/26/2023 9:54 AMPLOT SCALE: 1:40EDIT DATE: 5/26/2023EDITED BY: NWINSLOWDRAWING FILE: P:\2022\00150\D. Drawings\Civil\Construction Documents\2022.00150.CE.C600.SD.dwgProject Number CERTIFIED BY ISSUANCE INDEX DATE: PROJECT PHASE: 11/15/2022 2022.00150 CARMEL MEDICAL OFFICE BUILDING AT THE BRIDGES CARMEL, INDIANA REVISION SCHEDULE NO.DESCRIPTION DATE APPROVAL PENDING NOT FOR CONSTRUCTION IN SUBMITTING BIDS IN RELIANCE ON THESE PLANS THE CONTRACTOR ASSUMES ALL RISKS OF ADDITIONAL COSTS OF REVISIONS DUE TO REQUIREMENTS OF THE OWNER OR GOVERNMENTAL AUTHORITIES AND MATERIAL REVISIONS IN THE COURSE OF COMPLETING THE FINAL DESIGN. Contact: Jeff Shively Telephone: (317) 503-3374 Email: jshively@cornerstonecompaniesinc.com C601 SITE DETAILS CONSTRUCTION DOCUMENTS 9025 River Road, Suite 200 | Indianapolis, Indiana 46240 TEL 317.547.5580 | FAX 317.543.0270 www.structurepoint.com PLOT DATE: 5/26/2023 9:54 AMPLOT SCALE: 1:40EDIT DATE: 5/26/2023EDITED BY: NWINSLOWDRAWING FILE: P:\2022\00150\D. Drawings\Civil\Construction Documents\2022.00150.CE.C600.SD.dwgProject Number CERTIFIED BY ISSUANCE INDEX DATE: PROJECT PHASE: 11/15/2022 2022.00150 CARMEL MEDICAL OFFICE BUILDING AT THE BRIDGES CARMEL, INDIANA REVISION SCHEDULE NO.DESCRIPTION DATE APPROVAL PENDING NOT FOR CONSTRUCTION IN SUBMITTING BIDS IN RELIANCE ON THESE PLANS THE CONTRACTOR ASSUMES ALL RISKS OF ADDITIONAL COSTS OF REVISIONS DUE TO REQUIREMENTS OF THE OWNER OR GOVERNMENTAL AUTHORITIES AND MATERIAL REVISIONS IN THE COURSE OF COMPLETING THE FINAL DESIGN. Contact: Jeff Shively Telephone: (317) 503-3374 Email: jshively@cornerstonecompaniesinc.com C601 SITE DETAILS CONSTRUCTION DOCUMENTS 9025 River Road, Suite 200 | Indianapolis, Indiana 46240 TEL 317.547.5580 | FAX 317.543.0270 www.structurepoint.com PLOT DATE: 5/26/2023 9:54 AMPLOT SCALE: 1:40EDIT DATE: 5/26/2023EDITED BY: NWINSLOWDRAWING FILE: P:\2022\00150\D. Drawings\Civil\Construction Documents\2022.00150.CE.C600.SD.dwgProject Number CERTIFIED BY ISSUANCE INDEX DATE: PROJECT PHASE: 11/15/2022 2022.00150 CARMEL MEDICAL OFFICE BUILDING AT THE BRIDGES CARMEL, INDIANA REVISION SCHEDULE NO.DESCRIPTION DATE APPROVAL PENDING NOT FOR CONSTRUCTION IN SUBMITTING BIDS IN RELIANCE ON THESE PLANS THE CONTRACTOR ASSUMES ALL RISKS OF ADDITIONAL COSTS OF REVISIONS DUE TO REQUIREMENTS OF THE OWNER OR GOVERNMENTAL AUTHORITIES AND MATERIAL REVISIONS IN THE COURSE OF COMPLETING THE FINAL DESIGN. Contact: Jeff Shively Telephone: (317) 503-3374 Email: jshively@cornerstonecompaniesinc.com C603 SITE DETAILS CONSTRUCTION DOCUMENTS 9025 River Road, Suite 200 | Indianapolis, Indiana 46240 TEL 317.547.5580 | FAX 317.543.0270 www.structurepoint.com PLOT DATE: 5/26/2023 9:54 AMPLOT SCALE: 1:40EDIT DATE: 5/26/2023EDITED BY: NWINSLOWDRAWING FILE: P:\2022\00150\D. Drawings\Civil\Construction Documents\2022.00150.CE.C600.SD.dwgProject Number CERTIFIED BY ISSUANCE INDEX DATE: PROJECT PHASE: 11/15/2022 2022.00150 CARMEL MEDICAL OFFICE BUILDING AT THE BRIDGES CARMEL, INDIANA REVISION SCHEDULE NO.DESCRIPTION DATE APPROVAL PENDING NOT FOR CONSTRUCTION IN SUBMITTING BIDS IN RELIANCE ON THESE PLANS THE CONTRACTOR ASSUMES ALL RISKS OF ADDITIONAL COSTS OF REVISIONS DUE TO REQUIREMENTS OF THE OWNER OR GOVERNMENTAL AUTHORITIES AND MATERIAL REVISIONS IN THE COURSE OF COMPLETING THE FINAL DESIGN. Contact: Jeff Shively Telephone: (317) 503-3374 Email: jshively@cornerstonecompaniesinc.com C604 SITE DETAILS