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HomeMy WebLinkAboutOM Manual Narrative Operation and Maintenance Manual for Flora PUD on Spring Mill Road Carmel, Indiana Prepared for: Onyx + East 1828 Central Avenue Indianapolis, IN 46202 August 5, 2022 Revised October 21, 2022 Revised December 15, 2022 Revised April 18, 2023 Revised June 28, 2023 Revised July 21, 2023 Revised August 4, 2023 9339 Priority Way West Drive, Suite 100 Indianapoli s, Indiana 46240 Telephone 317 844 6777 Facsimile 3 17 706 6451 www.cripe.biz PIC: 210114-20000 08/04/2023 Page 1 of 39 i Stormwater Management System Operation and Maintenance Manual Flora PUD on Spring Mill Road Carmel, Indiana TABLE OF CONTENTS Introduction ............................................................................................. 1 Section I – Owner Information I.A General ................................................................................................................ 1 I.B Responsibilities ..................................................................................................... 1 I.C Owner’s Acceptance ......................................................................................... 2 Section II – Site Information.................................................................... 3 II.A Project Description ........................................................................................ 3 Section III – Inlet and/ or Manhole Maintenance………………………4 Section IV – Conveyance Maintenance .............................................. 4 Section V – Detention System Maintenance ........................................ 5 V.A Wet Detention System (Wet Pond) .................................................................. 5 Section VI - Water Quality – Mechanical BMP ……………………………6 Section VII – Native Vegetation Planting Maintenance During Warranty and Extended Service………………………………………………………...7 Section VIII – General Information……………..…………………………...8 IDEM SPILL RULE, 327 IAC2-6.1 ................................................................................... 8 APPENDICES Appendix A – Site Specific Information Appendix B – Operation and Maintenance of Stormwater Infrastructure 08/04/2023 Page 2 of 39 1 Introduction The City of Carmel has adopted a policy in compliance with the City’s National Pollutant Discharge Elimination System (NPDES) stormwater permit to control and improve the water quality of stormwater runoff. The water quality management program is based on the performance of approved structural Best Management Practices (BMP) to remove 80% of total suspended solids (TSS) from the first flush of runoff. Design requirements and parameters may be found in the Carmel Stormwater Technical Standards Manual, latest edition. As part of the Water Quality program, the City of Carmel requires a maintenance and inspection program by the Owner for all storm water infrastructure, including but not limited to pipes, ponds, ditches, and BMPs (when required). An operations and maintenance (O&M) manual is provided as a maintenance guide for the drainage infrastructure. This document is the O&M Manual for the Flora PUD on Spring Mill Road project to address the existing storm water infrastructure including storm structures, storm piping, and wet detention pond. Section I - Owner Information I.A General The Flora on Spring Mill site is under the ownership of Onyx + East. Contact Name: Mr. Brandon Knox Address: 1828 Central Avenue, Suite 100 Carmel, IN 46202 Business Phone: 317-559-0169 ((M) 269-503-3044) Email: brandon.knox@onyxandeast.com I.B Responsibilities Routine inspections, maintenance, and the costs necessary for the maintenance and repair of the stormwater infrastructure are the responsibility of the owner. See Section 1.C Owner’s Acceptance for additional owner information. 08/04/2023 Page 3 of 39 08/04/2023 Page 4 of 39 3 Section II - Site Information II.A Project Description The proposed site improvements for the Flora on Spring Mill site include construction and installation of new buildings, sidewalks, pedestrian paths, driveways, roads with parking, new landscaping, a retaining wall, storm sewers, utility service lines, and a wet detention basin. The project is located north-west of the intersection of Spring Mill Road and US-465 in Carmel, Indiana. The overall disturbance for this project is 14.14 acres. The pollutants of concern that are to be addressed in stormwater runoff from newly developing and redeveloping areas include total suspended solids (TSS) and floatables. The existing pre-construction drainage patterns/directions are not altered with the new storm system and detention pond. All runoff ultimately drains to the Williams Creek Regulated Drain located west of the site. Stormwater runoff from developed site elements, including building roofs and exterior pavement, sheet drain to a new on-site storm sewer network. The new onsite storm sewer system conveys runoff to two SWQ BMPs located at the ends of the two main storm sewer lines. It then discharges into a Wet Detention Pond (Wet Pond BMP). The detention pond discharges to the Williams Creek Regulated Drain via an outlet control structure that controls flows using a 4.4 - inch orifice and a 24-inch by 6-inch inch weir. The outfall storm sewer is a 15-inch diameter RCP and discharges over a gabion mattress outfall at Williams Creek. Additional information is located in Appendix A, Site Specific Information. Section III - Inlet and/or Manhole Maintenance Inspection of inlets and manholes is important for structural integrity and water quality of the stormwater management system as well as identify potential problems. Inlets and manholes on site should be routinely inspected and maintained as follows: · Castings: All inlet and dry well open grate castings shall be inspected monthly and after each rainfall event. More frequent inspections should occur after outdoor events located near inlets and during the autumn months as leave foliage could result in clogging the casting. · Inlets: Inspect and clean storm drain inlets at least once a year before the rainy season. Sediments and debris shall be removed by hand or with a vacuum truck when sediment depths exceed ¼ of the pipe diameter with a maximum of 6”. Sediments and waste shall be disposed of in accordance 08/04/2023 Page 5 of 39 4 with the City of Carmel and any applicable state, and/or federal requirements. · Manholes: Inspect and clean manholes at least once a year before the rainy season. Sediments and debris shall be removed by hand or with a vacuum truck when sediment depths exceed ¼ of the pipe diameter with a maximum of 6”. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. · Sump Structures: For structures with sump structures, inspect and clean sump structures at least twice a year, once before the rainy season. Sediments and debris shall be removed by hand or with a vacuum truck when sediment depths exceed ¼ of the pipe diameter with a maximum of 6”. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. Additional information and a sample inspection checklist are available in Appendix B. Checklists should, at a minimum, address the items identified in this document. Section IV - Conveyance Maintenance Inspection of conveyance systems (i.e.: pipes, culverts, end sections, swales, ditches) is important for overall operation efficiency of the stormwater management system, stormwater quality, as well as identifying potential problems. The conveyance system should be inspected and maintained as follows: · Swales and Ditches: Swales and ditches have been designed to maximize the use of natural vegetation which will reduce the amount of embankment mowing and maintain water quality. Where appropriate, swales and ditches shall be mowed as needed during the growing season. Inspect swales and ditches annually for sediment, trash, and debris. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. · Culverts and Pipe End Sections: Inspect and clean culverts and pipe end sections at least once a year before the rainy season. Sediments and debris shall be removed by hand or with a vacuum truck. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. · Pipes: Inspect and clean storm sewer pipes. Pipes are more difficult to inspect; special equipment and training is often needed. Clean pipes when sediment depth is greater than 25% of the pipe diameter but no greater 08/04/2023 Page 6 of 39 5 than 6”. Note any root obstruction in the sewer pipes and mechanically remove any root obstructions. · Pipes 12”: Pipes that are 12 inches in size shall be inspected more frequently than the larger size pipes. Semi-annual inspections are required but quarterly inspections are recommended. Periodic flushing or jetting of the system to remove grass clippings and / or leaves that may enter the system shall be conducted. Additional information and a sample inspection checklist are available in Appendix B. Checklists should, at a minimum, address the items identified in this document. Section V - Detention Maintenance Inspection of detention systems (i.e.: wet pond) is important for overall operation efficiency of the stormwater management system, stormwater quality, as well as identifying potential problems. The wet pond consists of the following: · A permanent pool below elevation 816.00 which is 9.5 feet deep. · A 48” manhole (STR 7004) with a Neenah R-3405 grate. The top of casting is set above the 100-year peak elevation (820.85) at elevation 822.85. · The outlet control structure (STR 7004) consists of a weir wall with a 4.4 inch orifice at elevation 815.75. · A 24-inch weir cast integral with the manhole structure. The weir invert is set at elevation – 821.51. · The top of the weir wall is set at the 100-year peak elevation at 820.85. · A 15-inch inlet storm sewer runs from the permanent pool to the control structure at invert elevation 816.00. · A debris guard per Hamilton County Surveyor’s Office is mounted over the 15-inch inlet pipe. · A 15-inch outlet pipe that discharges to Williams Creek Regulated Drain over a gabion mattress to provide erosion protection. · An emergency spillway, 30-feet wide with the invert elevation set at 821.90. The wet detention system should be inspected and maintained as follows: · Wet detention slopes and embankments: Inspect for erosion along pond surfaces at least twice a year. Inspect for embankment damage annually. Detention slopes and embankments shall be mowed as necessary and shall be clear of plants and woody plants more than 5 inches in height. · Wet detention bottom: Inspect wet detention basin for sediment accumulation and dead or damaged ground cover annually. Remove sediments when storage volume is reduced by 2-feet. The minimum pond depth shall be no less than 8 feet. Sediments and waste shall be disposed 08/04/2023 Page 7 of 39 6 of in accordance with the City of Carmel and any applicable state, and/or federal requirements · Emergency spillway: Remove obstructions, maintain vegetation, and remove any vegetation higher than 5 inches. Repair any evident erosion areas. · Pond Inlet/Outlet Pipes and Structures: Remove collected debris and vegetation in rip rap and replace any missing rip rap. Remove any materials blocking flow area, debris, and sediment that collects in front of trash racks. Sediments and debris shall be removed by hand or with a vacuum truck when sediment depths exceed ¼ of the pipe diameter with a maximum of 6”. Additional information and a sample inspection checklist are available in Appendix B. Checklists should, at a minimum, address the items identified in this document. Section VI - Water Quality – Mechanical BMP Routine inspections, maintenance, and the costs necessary for the maintenance and repair of the BMPs are the responsibility of the owner. The following are the recommended inspection items and timeframes for the AquaShield Aqua-SwirlTM Xcelerator XC-7 and XC-10 Units used on this project. Annual inspections of the Aqua-SwirlTM unit will be performed by the City. Routine inspections, maintenance, and the costs necessary for the maintenance and repair of the BMP are the responsibility of the owner. Routine inspections of the Aqua-SwirlTM unit should occur twice per year (semi-annually). Per manufacturer recommendation, units should be cleaned out annually or immediately after an oil or chemical spill. Remove manhole lid to inspect for debris, oil, floatables, and sediment within the Aqua-SwirlTM unit and the diversion structure. Check the overall structure for damage, wear, unusual odors, and plugging. Remove floatable debris with a basket or net. If a hydrocarbon spill has occurred, (e.g., more than a sheen of oil or gas is present) the system should be cleaned immediately. Measure sediment depth with a dipstick or stadia rod (or similar). At a maximum, the sludge should not exceed 36” depth in the Aqua-SwirlTM unit before maintenance. If removal is required, sediments and debris shall be removed with a vacuum truck. Sediments from the inlet side of the diversion structure should be removed when present. Sediments in the outlet side of the diversion structure should not exceed 24” depth before maintenance. The contents resulting from the cleaning procedure should not be dumped into a sanitary sewer. Disposal of 08/04/2023 Page 8 of 39 7 all sediments shall be in accordance with all federal, state, and local requirements. Additional information on ongoing maintenance and inspection and a sample inspection checklist are available in Appendix B. Checklists should, at a minimum, address the items identified in this document. Section VII - Native Vegetation Planting Maintenance During Warranty and Extended Service A. Maintain and establish seed, tree and shrub areas by pruning, cultivating, watering, weeding, trimming, replanting, restoring planting saucers, tightening and repairing stakes and guy supports, resetting to proper grades or vertical position, and other operations as required to establish healthy, viable plantings. Roll, regrade, and replant bare or eroded areas and remulch until a uniformly smooth seed, tree and shrub area is achieved. 1. In areas where mulch has been disturbed by wind or maintenance operations, add new mulch, Anchor as required to prevent displacement. 2. Do not allow plantings to wilt or show other signs of environmental stress. B. Check and observe plantings for signs of insect and disease attack. Take corrective measures immediately upon notice of such attack. Control damaging insects and diseases. C. Mow 1-2 times during growing season, or as needed, to reduce vegetative competition. Mowing shall be conducted using a flail or bush hog type mower and in one direction, at a minimum. Bi-directional (crisscross) mowing may also be done to further reduce competing vegetation, if desired. D. Remove dead plants immediately. Replace immediately, unless required to plant in succeeding planting season. Refer to Appendix A for seed mix and no mow signage. Section VIII - General Information IDEM SPILL RULE, 327 IAC2-6.1 Indiana Administrative Code, Title 327 Water pollution Control Board, Article 2, Rule 6.1(327 IAC 2-6.1) is the Spill Rule under the authority of the Indiana Department of Environmental Management (IDEM), which regulates spill reporting, containment, and response. Spills regulated by the Spill Rule are of a 08/04/2023 Page 9 of 39 8 quantity, type, duration, and location that may damage waters of the state. A spill is defined as “any unexpected, unintended, abnormal, or unapproved dumping, leakage, drainage, seeping, discharge or other loss of petroleum, hazardous substances, extremely hazardous substances, or objectionable substances” (Water Pollution Control Board: 327 IAC 2-6,1-4.) Therefore, regulated spills can often be identified as originating from point sources. Natural oil and grease from roadway runoff or decomposition of organic material, such as leaves, within BMPs is not included as a spill regulated by the Spill Rule. If uncertain of an incident qualifying as a spill, call the IDEM Emergency Response hotline at 1-888-233-7745. IF a spill should occur in or near a BMP, the spill should be reported and contained, and emergency spill response actions taken in accordance with the Spill Rule. Regular maintenance procedures of stormwater infrastructure not affected by spills do not require compliance with the Spill Rule. 08/04/2023 Page 10 of 39 APPENDIX A Site Specific Information 08/04/2023 Page 11 of 39 EM PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:52 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.NOT TO SCALE 210114-20000 VICINITY MAP EXHIBIT FOR FLORA ON SPRING MILL ROAD 08-04-2023 08/04/2023 Page 12 of 39 NOT TO SCALE 210114-20200 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\Easements.dwg, August 4, 2023 11:01 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.BMP AND POND EASEMENTS FOR FLORA ON SPRING MILL ROAD 07-21-2023 08/04/2023 Page 13 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:44 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.NOT TO SCALE 210114-20000 POND OUTLET FOR FLORA ON SPRING MILL 08-04-2023 08/04/2023 Page 14 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:44 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.NOT TO SCALE 210114-20000 OUTLET CONTROL STRUCTURE (STR 7004) FOR FLORA ON SPRING MILL 07-21-2023 08/04/2023 Page 15 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:49 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.07-21-2023 NOT TO SCALE 210114-20000 DETENTION BASIN EMERGENCY SPILLWAY FOR FLORA ON SPRING MILL 08/04/2023 Page 16 of 39 REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:53 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.07-21-2023 NOT TO SCALE 210114-20000 NATIVE PLANT AREA SIGN FOR FLORA ON SPRING MILL PROJECT NO: SCALE: Date:TITLE: 08/04/2023 Page 17 of 39 REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:57 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.08-04-2023 NOT TO SCALE 210114-20000 TYPICAL POND SECTION FOR FLORA ON SPRING MILL PROJECT NO: SCALE: Date:TITLE: 08/04/2023 Page 18 of 39 NATIVE PLANT MIXES Page 1 of 3 NATIVE PLANT MIXES DATE: July 24, 2023 TO: Onyx & East FROM: Anderson + Bohlander PROJECT: FLORA Spence Restoration Nursery Sedge Meadow Seed Mix Grasses and Sedges PLS oz/acre 1 Carex comosa (Bristly Sedge) 1 Carex cristatella (Crested Sedge) 2 Carex frankii (Frank's Sedge) 2 Carex granularis (Meadow Sedge) 2 Carex hystericina (Porcupine Sedge) 2 Carex lurida (Lurid Sedge) 1 Carex tribuloides (Pointed Oval Sedge) 3 Carex vulpinoidea (Fox Sedge) 64 Elymus virginicus (Virginia Wild Rye) 2 Glyceria striata (Fowl Manna Grass) 2 Leersia oryzoides (Rice Cut Grass) 2 Panicum virgatum (Switchgrass) 1 Scirpus atrovirens (Dark Green Bulrush) 1 Spartina pectinata (Prairie Cordgrass) 86 Forbs PLS oz/acre 2 Angelica atropurpurea (Angelica) 1 Asclepias incarnata (Swamp Milkweed) 2 Boltonia latisquama (False Aster) 1 Eupatorium perfoliatum (Boneset) 1 Eutrochium maculatum (Spotted Joe-Pye Weed) 3 Helenium autumnale (Autumn Sneezeweed) 1 Liatris spicata (Dense Blazing Star) 0.25 Lobelia cardinalis (Cardinal Flower) 0.25 Lobelia siphilitica (Great Blue Lobelia) 0.5 Mimulus ringens (Monkey Flower) 1 Oligoneuron riddellii (Riddell's Goldenrod) 08/04/2023 Page 19 of 39 NATIVE PLANT MIXES Page 2 of 3 1 Penstemon digitalis (Foxglove Beardtongue) 0.5 Pycnanthemum virginianum (Mountain Mint) 2 Rudbeckia fulgida speciosa (Showy Black-Eyed Susan) 2 Hibiscus moscheutos (Swamp Rose Mallow) 2 Rudbeckia subtomentosa (Sweet Black-Eyed Susan) 2 Senna hebecarpa (Wild Senna) 2 Silphium integrifolium (Rosinweed) 2 Silphium perfoliatum (Cupplant) 2 Silphium terebinthinaceum (Prairie Dock) 1 Solidago patula (Swamp Goldenrod) 0.5 Symphyotrichum firmum (Shining Aster) 0.5 Symphyotrichum novae-angliae (New England Aster) 0.5 Symphyotrichum puniceum (Swamp Aster) 1 Verbena hastata (Blue Vervain) 1 Vernonia fasciculata (Smooth Ironweed) 0.5 Veronicastrum virginicum (Culver's Root) 0.5 Zizia aurea (Golden Alexanders) 34 Spence Restoration Nursery Wet Mesic Prairie Mix Grasses and Sedges PLS oz/acre 16 Andropogon gerardii (Big Bluestem) 2 Carex annectans xanthocarpa (Yellow Fox Sedge) 2 Carex frankii (Frank's Sedge) 6 Carex vulpinoidea (Fox Sedge) 32 Elymus canadensis (Canada Wild Rye) 32 Elymus virginicus (Virginia Wild Rye) 2 Glyceria striata (Fowl Manna Grass) 4 Panicum virgatum (Switchgrass) 16 Sorghastrum nutans (Indian Grass) 112 Forbs PLS oz/acre 1 Asclepias syriaca (Common Milkweed) 1 Baptisia alba (White False Indigo) 3 Coreopsis tripteris (Tall Coreopsis) 3 Echinacea purpurea (Purple Coneflower) 2 Eryngium yuccifolium (Rattlesnake Master) 0.5 Euthamia graminifolia (Grass-Leaved Goldernrod) 1 Helianthus grosseserratus (Sawtooth Sunflower) 4 Heliopsis helianthoides (False Sunflower) 2 Liatris spicata (Dense Blazing Star) 0.5 Monarda fistulosa (Bergamot) 08/04/2023 Page 20 of 39 NATIVE PLANT MIXES Page 3 of 3 1 Oligoneuron riddellii (Riddell's Goldenrod) 2 Oligoneuron rigidum (Stiff Goldenrod) 0.5 Penstemon digitalis (Foxglove Beardtongue) 0.5 Pycnanthemum virginianum (Mountain Mint) 4 Ratibida pinnata (Yellow Coneflower) 3 Rudbeckia fulgida speciosa (Showy Black-Eyed Susan) 3 Rudbeckia hirta (Black-Eyed Susan) 3 Rudbeckia subtomentosa (Sweet Black-Eyed Susan) 3 Senna hebecarpa (Wild Senna) 2 Silphium integrifolium (Rosinweed) 4 Silphium terebinthinaceum (Prairie Dock) 0.5 Symphyotrichum firmum (Shining Aster) 1 Symphyotrichum novae-angliae (New England Aster) 2 Vernonia fasciculata (Smooth Ironweed) 0.5 Veronicastrum virginicum (Culver's Root) 48 08/04/2023 Page 21 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:54 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.08-05-2022 NOT TO SCALE 210114-20000 TYPICAL SWALE DETAIL FOR FLORA ON SPRING MILL 08/04/2023 Page 22 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:54 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.08-08-2022 NOT TO SCALE 210114-20000 DEBRIS GUARD FOR FLORA ON SPRING MILL 08/04/2023 Page 23 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:53 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.NOT TO SCALE 210114-20200 GABION PIPE AND MATTRESS FOR FLORA ON SPRING MILL 08-05-2022 LAY THE GABION MATTRESS AND FILL WITH RIP RAP. CLOSE GABION MATTRESS AND PLACE THE PIPE. LIFT END PANELS AROUND PIPE AND TIE THEM TOGETHER AT TOP OF PIPE. END SECTION TOE SHALL CUT THROUGH GABION MATTRESS AS SHOWN. LACING WIRE END SECTION TOE SHALL PUNCH THROUGH GABION MATTRESS AND BE INSTALLED PER DETAIL ON SHEET C602 TRANSITION TO MEET EXISTING SLOPE/GRADE @ 2.5:1 MAX. SEED AND INSTALL E.C. BLANKET BACKFILL AND COMPACT PIPE TRENCH TO MATCH EXISTING SLOPE. STABILIZE WITH PERMANENT SEED AND E.C. BLANKET. 08/04/2023 Page 24 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\CAD\WQ BMP Exhibits & Maps.dwg, August 8, 2022 10:09 AM, JOSHUA KOONE, © Paul I. Cripe, Inc.08-08-2022 NOT TO SCALE 210114-20000 TYPICAL TRENCH DETAILS FOR FLORA ON SPRING MILL 08/04/2023 Page 25 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\9th Submittal_2023-08-04\CAD\WQ BMP Exhibits & Maps.dwg, August 4, 2023 10:54 AM, SUSAN SCHREINER, © Paul I. Cripe, Inc.08-08-2022 NOT TO SCALE 210114-20000 TYPICAL MANHOLE DETAIL FOR FLORA ON SPRING MILL 08/04/2023 Page 26 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY SOUTH DRIVE, SUITE 200 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS O:\2021\210114\20000\Docs\Engr\Reports\OM Manual\CAD\WQ BMP Exhibits & Maps.dwg, August 8, 2022 10:08 AM, JOSHUA KOONE, © Paul I. Cripe, Inc.08-08-2022 NOT TO SCALE 210114-20000 TYPICAL INLET DETAIL FOR FLORA ON SPRING MILL 08/04/2023 Page 27 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY WEST DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS \\cripe\projects\2021\210114\20000\Docs\Engr\Reports\OM Manual\CAD\Water Quality Structures.dwg, August 13, 2022 1:53 PM, JOE BYRNE, © Paul I. Cripe, Inc.FLORA ON SPRING MILL ROAD FOR 08-05-2022 NONE 210114-20000 AQUA-SWIRL XC-7 WATER QUALITY STRUCTURE 08/04/2023 Page 28 of 39 PROJECT NO: SCALE: Date:TITLE: REAL ESTATE SERVICES SURVEY + 3D LASER SCANNING ENERGY + FACILITIES EQUIPMENT PLANNING (317) 844-6777 INDIANAPOLIS, INDIANA 46240 9339 PRIORITY WAY WEST DRIVE, SUITE 100 www.cripe.biz CIVIL ENGINEERING ARCHITECTUREARCHITECTURE + INTERIORS \\cripe\projects\2021\210114\20000\Docs\Engr\Reports\OM Manual\CAD\Water Quality Structures.dwg, August 13, 2022 1:54 PM, JOE BYRNE, © Paul I. Cripe, Inc.FLORA ON SPRING MILL ROAD FOR 08-05-2022 NONE 210114-20200 AQUA-SWIRL XC-10 WATER QUALITY STRUCTURE 08/04/2023 Page 29 of 39 APPENDIX B Operation and Maintenance of Stormwater Infrastructure 08/04/2023 Page 30 of 39 Checklist - Inlet, Manhole, and Sump Structure Maintenance Site Name: Owner Changed Since Last Inspection? Y or N Owner Name, Address, and Phone Number: Location/ Structure #: Date: Time: Inspector Name: Maintenance Item Satisfactory Comments Castings (Inspect monthly or after rain event) 1. Debris accumulation at casting? Y or N 2. Castings free from damage? Y or N Inlets (Inspect at least once per year before rainy season) 1. Sediment/Litter accumulation? Y or N 2. Structure free from damage? Y or N Manholes (Inspect and clean at least once per year before rainy season) 1. Sediment/Litter accumulation? Y or N 2. Structure free from damage? Y or N Note: Sediments and debris in inlets and catch basins shall be removed by hand or with a vacuum truck. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. 08/04/2023 Page 31 of 39 Additional Comments and Actions to be Taken: Timeframe: 08/04/2023 Page 32 of 39 Checklist-Conveyances Maintenance (pipes, end sections, culverts, swales, ditches) Site Name: Owner Changed Since Last Inspection? Y or N Owner Name, Address, and Phone Number: Location on Site: Date: Time: Inspector Name: Maintenance Item Satisfactory Comments Swales/Ditches (Mow as needed during growing season. Inspect annually) 1. Clear of plants 5” or greater in height? Y or N 2. Free from sediment/litter accumulation? Y or N 3. Free from signs of erosion? Y or N Culverts and End Sections (Inspect and clean at least one per year before rainy season) 1. Sediment/Litter accumulation? Sediment should be less than ¼ of culvert opening Y or N 2. Culvert free from damage? Y or N 3. End Section free from damage? Y or N Pipes Greater than 12” Diameter (Inspect and clean at least once per year before rainy season) 1. Sediment/Litter accumulation? Sediment should be less than ¼ of culvert opening Y or N 2. Pipe free from damage? Y or N 08/04/2023 Page 33 of 39 3. Root obstructions present? Y or N Pipes 12” Diameter (Inspect and clean at least twice per year, once occurring before rainy season) 1. Sediment/Litter accumulation? Sediment should be less than ¼ of culvert opening Y or N 2. Pipe free from damage? Y or N 3. Root obstructions present? Y or N Note: Sediments and debris in conveyance systems shall be removed by hand or with a vacuum truck. 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. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. Additional Comments and Actions to be Taken: Timeframe: 08/04/2023 Page 34 of 39 Wet Detention Systems, Wet Pond and Outlet Structure Site Name: Owner Changed Since Last Inspection? Y or N Owner Name, Address, and Phone Number: Location on Site: Date: Time: Inspector Name: Outlet Control Structure Maintenance Item Satisfactory Comments A. Embankment Emergency Spillway 1. Healthy vegetation with at least 85% cover? Y or N 2. No signs of erosion on embankment? Y or N 3. No animal burrows? Y or N 4. Embankment is free of cracking, bulging, or sliding? Y or N 5. Embankment is free of woody vegetation? Y or N 6. Embankment is free from leaks or seeps? Y or N 7. Emergency spillway is clear from obstructions? Y or N 8. Vertical/horizontal alignment of top of dam “As-Built”? Y or N B. Control Structure and Principal Spillway 1. Low flow outlet free of obstruction? Y or N 08/04/2023 Page 35 of 39 2. Trash rack is not blocked or damaged? Y or N 3. Riser is free of excessive sediment buildup? Y or N 4. Outlet pipe is in good condition? Y or N 5. Hooded snout is not clogged and is operational? Y or N 6. Outfall Channel is stable and free of scouring? Y or N 7. Sump is free of sediment? Y or N C. Permanent Pool (Wet Pond) 1. No evidence of undesirable vegetation? Y or N 2. No accumulation of floating debris Y or N 3. No evidence of shoreline scour or erosion? Y or N D. Sediment Forebays 1. Sediment is being collected by forebays? Y or N 2. Forebay is not in need of cleanout (less than 50% full)? Y or N E. Condition of Outfalls into Pond 1. No riprap failures? Y or N 2. No evidence of slope erosion or scouring? Y or N 3. Storm drainpipes are in good condition with no evidence of clogging? Y or N 08/04/2023 Page 36 of 39 4. End Sections/Headwalls are in good condition? Y or N Note: Sediments and debris in Wet Pond and, Outlet Structure shall be removed by hand or with a vacuum truck. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. Additional Comments and Actions to be Taken: Timeframe: 08/04/2023 Page 37 of 39 Aqua-Swirl XCelerator Water Quality System Inspection Checklist Site Name: Owner Changed Since Last Inspection? Y or N Owner Name, Address, and Phone Number: Location: Date: Time: Inspector Name: Aqua-Swirl Maintenance Item Satisfactory Comments Aqua-Swirl (Inspect at least once per year before rainy season) 1. Sediment/Litter accumulation? Y or N 2. Structure free from damage? Y or N 3. Weir free from damage? Y or N Note: Sediments and debris in the Aqua-Swirl shall be removed by hand or with a vacuum truck. Sediments and waste shall be disposed of in accordance with City of Carmel and any applicable state, and/or federal requirements. Additional Comments and Actions to be Taken: Timeframe: 08/04/2023 Page 38 of 39 This instrument was prepared by Stev Pierre, Cripe. 9339 Priority Way West Drive, Suite 100, Indianapolis, Indiana 46240. “I affirm, under the penalties for perjury, that I have taken reasonable care to redact each Social Security number in this document, unless required by law.” Stev Pierre, Cripe. 08/04/2023 08/04/2023 Page 39 of 39