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HomeMy WebLinkAboutC305 Storm Water Poll. & Prev. Plan S4B-C308DATEMARKREVISIONSBYCERTIFIED:S & A JOB NO. SHEET NO. DRAWN BY:CHECKED BY:THIS DRAWING IS NOT INTENDED TO BE REPRESENTED AS A RETRACEMENT OR ORIGINAL BOUNDARY SURVEY, A ROUTE SURVEY OR A SURVEYOR LOCATIONREPORT.S T O E P P E L W E R T HA L W A Y S O N7965 East 106th Street, Fishers, IN 46038-2505phone: 317.849.5935 fax: 317.849.5942STORM WATER POLL. & PREV. PLAN SPECS.SECTION FOUR BC308 55115PYT-S4THE GROVE at THE LEGACYKJJM/JAW BKR CLAY TOWNSHIPHAMILTON COUNTY, INDIANA03/18/20DP IT E S G E E O TS R P RTE W LE D E HVADIRJ .ADNINAI EEG NIRENOILA NS F EPRO STATE OF S File Name:S:\55115-PYT-S4\DWG\C305 Storm Water Poll. & Prev. Plan S4B.dwg - C308Modified / By:March 17, 2020 10:11:22 AM / jthurmanPlotted / By:March 18, 2020 12:35:30 PM / Kenny MitchellFOR EROSION CONTROL ONLY. THIS SHEET TO BE USED PERSON ONSITE RESPONSIBLE FOR EROSION CONTROL: TODD PYATT PHONE: (317) 379-0184 SITE NAME PROJECT LOCATION The property is located South of 146th Street and West of River Road Latitude: 39º 59' 45" N Longitude: 86º 02' 51" W OWNER'S INFORMATION 1.) WATERSHED HYDROLOGIC UNIT CODE (HUC) 05120201090010 White River 13.) MATERIAL HANDLING AND SPILL PREVENTION PLAN 2.) LOCATION, DIMENSIONS, SPECIFICATIONS, AND CONSTRUCTION DETAILS OF EACH POST-CONSTRUCTION STORMWATER QUALITY MEASURE 5.) DESCRIPTION OF OPERATION AND MAINTENANCE GUIDELINES FOR ALL POST-CONSTRUCTION STORMWATER QUALITY MEASURES 3.) SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTATION Please see construction sequence. Also the stormwater quality will be handled with Dry Detention Basins, Rain Gardens, Vegetated Swales and Wet Ponds along with Proposed Sump Catch Basins for this Section and such measures will be in conjunction with the projects Water Quality and O&M manuals along with the "Overall Drainage and Water Quality Master Plan" prepared for The Legacy, East Carmel, LLC prepared by Williams Creek Consulting, Inc., (approval to be implemented with subsequent construction). For Post Construction Storm Water Quality measures please see the O&M manual for this project along with the "Overall Drainage and Water Quality Master Plan" prepared for The Legacy, East Carmel, LLC prepared by Williams Creek Consulting, Inc., (approval to be implemented with subsequent construction). Post Construction Storm Water Quality operations and maintenance for Sump Catch basins will be in conjunction with the project's Water Quality and O&M manuals along with the "Overall Drainage and Water Quality Master Plan" prepared for The Legacy, East Carmel, LLC prepared by Williams Creek Consulting, Inc., (approval to be implemented with subsequent construction). 2.) NAME OF ALL RECEIVING WATERS 3.) PEAK DISCHARGE FOR POST CONSTRUCTION CONDITIONS (10 year) Post-construction 10-year discharge: 11.04 cfs 4.) SPECIFIC POINTS WHERE STORMWATER DISCHARGE WILL LEAVE THIS SITE 5.) LOCATIONS WHERE STORMWATER MAY BE DIRECTLY DISCHARGED INTO GROUNDWATER (abandoned wells or sinkholes) 6.) SOILS MAP WITH DESCRIPTIONS AND LIMITATIONS 7.) DESCRIPTION OF POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH CONSTRUCTION ACTIVITIES Silt fences shall be installed with the contour of the slopes. Max. Slope Length above Silt Fence (Ft.) Land Slope % 100 75 50 25 15 < 2 2-15 5-10 10-20 7-20 8.) TEMPORARY AND PERMANENT STORMWATER QUALITY MEASURES d. For Construction details for these measures see sheet 306. c. Existing detention basins shall be used to extend detention times to achieve stormwater quality. Turf Reinforcement mats with transition mats will be used at each of the stormwater outlets where not connecting into existing manholes. Erosion control blankets will be utilized as grade-stabilization structures. Sheet flow areas will be protected by seed and mulch or hydroseeding. Erosion control blankets will be installed on sloped areas where the slope exceeds 6:1 (horizontal to vertical). Silt fencing will be utilized to minimize runoff from construction areas as identified on Sheets C300-C302. e. Monitoring and maintenance guidelines: 9.) GENERAL CONSTRUCTION SEQUENCE None. 10.) LOCATION OF PROPOSED SOIL STOCKPILES, BORROW, AND/OR DISPOSAL AREAS 11.) TEMPORARY AND PERMANENT SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON Refer to Sheet C309, within the Seasonal Soil Protection Chart. 14.) OPERATOR'S INFORMATION SWPPP FOR CONSTRUCTION SITES SWPPP FOR POST-CONSTRUCTION 1.) DESCRIPTION OF POLLUTANTS AND THEIR SOURCES ASSOCIATED WITH THE PROPOSED LAND USE 4.) STORMWATER QUALITY MEASURES TO BE IMPLEMENTED TO PREVENT OR MINIMIZE ADVERSE IMPACTS TO STREAM AND RIPARIAN HABITATS Stormwater quality measures will be in conjunction with the projects Water Quality and O&M manuals along with the "Overall Drainage and Water Quality Master Plan" prepared for The Legacy, East Carmel, LLC prepared by Williams Creek Consulting, Inc., (approval to be implemented with subsequent construction). Solid Waste Disposal Hazardous Waste Dust Control/Off-site Vehicle Tracking Inspection Schedule/Reporting Construction Entrance Material Storage Inspections Soil Stabilization Inspections Erosion and Sediment Control Inspections Material Handling and Spill Prevention Seeded areas will be inspected to confirm that a healthy stand of vegetation is maintained. The site has achieved final stabilization once all proposed roads are covered with pavement. And the remainder of the site has a stand of vegetation with at least 70% of the background vegetation density. The density of 70% or greater must be maintained to be considered as stabilized. The operator or their representative will water, fertilize, and reseed disturbed areas as needed to achieve this goal. Spill Response Directions White River. PM Development Holdings, LLC 168 West Carmel Drive Carmel, Indiana 46032 Contact: Todd Pyatt Phone: (317) 379-0184 a.Inlets/Sump Catch Basins - The proposed inlets will prevent large debris such as paper, trash and construction material from entering the storm sewer. The sump catch basins (Str. #829A & #867) are storm structures constructed with a sump which serves as a sediment storage basin that can be accessed and cleaned out when necessary. The inlet castings are also stamped with an environmental protection stamp informing the public not to pollute the environment. Inlets and inlet castings specifications can be found on Sheet C801. 1.The contractor shall schedule a Pre-construction meeting with the City of Carmel prior to any constructing on the site being started. The contractor and/or developer shall notify IDEM and the City of Carmel 48 hours prior to start of construction. 2.Following the required pre-construction meeting the contractor shall construct the “posting information center” on the South side of the proposed construction entrance. The location of the posting information center is shown on Sheets C305-C306. The posting information center is the location where a copy of the approved IDEM Rule 5 Permit, Approved SWPP Plan, signed O&M Manual and Maintenance Logs are to be located. The contractor shall proceed to construct the construction entrance after all posting requirements have been met. 3.Immediately following the installation of the construction entrance, the contractor shall construct the maintenance and refueling area. Please refer to the maintenance and refueling area detail on Sheet C309. 4.After the maintenance and refueling area is constructed, the contractor shall construct the concrete washout area per the specifications on Sheet C309. Concrete washout shall not be required if concrete truck is equipped with self-contained chute system, similar to system provided by Enviroguard, or approved equal. 5.Prior to any earth moving the contractor shall install all silt fence as shown on Sheet C305 - C306. The details and specifications for silt fence installation are located on Sheet C309. 6.The contractor shall protect all existing inlets with drop inlet protection baskets and fiber mats as shown on Sheet C305 - C306. The details and specifications for the drop inlet baskets and fiber mats on Sheet C309. 7.When the “existing” site/construction limits are completely stabilized, the contractor shall start stripping the existing top soil within the construction limits. 8.The contractor shall proceed to grade the site. The material to grade the site shall be excavated per the proposed cut & fills as shown on Sheet C201. 9.Contractor shall cut proposed swales. Swales shall be seeded and mulched immediately upon completion. 10.The Contractor shall install the proposed erosion control blanket in all swales as shown on Sheet C307. The details and specifications for the erosion control blanket can be found on Sheet C310 11.Contractor shall excavate around existing manholes 726 and 727 and expose the proposed connection points for the gravity sanitary sewer for this project. 12.The proposed storm sewer and sanitary sewer shall be installed concurrently with each other when crossings are encountered. 13.Contractor shall install water main. The trench area shall be seeded and mulched immediately following the installation of the water main. 14.The contractor shall prepare the sub-grade for the proposed road system. If lime stabilization is the method chosen, dust shall be kept to a minimum. Dust shall be removed from the construction vehicles prior to leaving the site. 15.Contractor shall install all concrete roll curb. 16.Contractor shall install all asphalt pavement. 17.Contractor shall have all other appropriate utilities installed. It is ultimately the responsibility of the contractor to ensure that the trench area is seeded and mulched immediately following the installation of each utility. 18.The contractor shall permanent seed all areas between the back of curb and the constructed pads and all other areas that are illustrated on Sheet C307. The seed mixture and rate can be found on Sheet C309. 19.The contractor shall schedule a site inspection with the City of Carmel to ensure that the site is stabilized. After the inspector approves the site conditions the contractor shall remove all temporary erosion control practices. 20.The post-construction erosion control practices then become the responsibility of the developer of this project. 21.The developer of this project shall continue to monitor this site for good house keeping on the post-construction BMP's until a NOT is filed with IDEM. THE GROVE AT THE LEGACY, SECTION FOUR B The area scheduled for construction is known as "The Grove at the Legacy, Section Four B" (hereinafter referred to as the "Project"). This site will discharge to existing detention basin DD2 constructed with previous development. Basin DD2 ultimately outlet to White River. a.Inlets/Sump Catch Basins - The proposed inlets will prevent large debris such as paper, trash and construction material from entering the storm sewer. The sump catch basins (Str. #829A & #867) are storm structures constructed with a sump which serves as a sediment storage basin that can be accessed and cleaned out when necessary. The inlet castings are also stamped with an environmental protection stamp informing the public not to pollute the environment. Inlets and inlet castings specifications can be found on Sheet C801. Discharge of hazardous substances or oil into stormwater is subject to reporting requirements. In the event of a spill of a hazardous substance, the operator is required to notify the National Response Center (1-800-424-8802) to properly report the spill. In addition, the operator shall submit a written description of the release (including the type and amount of material released, the date of the release, the circumstances of the release, and the steps to be taken to prevent future spills) to the local MS-4. In the event that sediment escapes the construction site, off-site accumulations of sediment must be removed at a frequency sufficient to minimize adverse impacts. An example of this may be the situation where sediment has washed into the street and could be carried into the storm sewers by the next rainfall and/or pose a safety hazard to users of public streets. 12.) EROSION AND SEDIMENT CONTROL SPECIFICATIONS FOR INDIVIDUAL BUILDING LOTS Refer to individual building lot detail on sheet C309. No solid material, including building materials, is permitted to be discharged to surface waters or buried on site. All solid waste materials, including disposable materials incidental to the construction activity, must be collected in containers or closed dumpsters. The collection containers must be emptied periodically and the collected material hauled to a landfill permitted by the State and/or appropriate local municipality to accept the waste for disposal. Dumpsters and port-o-lets are not to be placed in the street. A foreman or supervisor should be designated in writing to oversee, enforce, and instruct construction workers on proper solid waste procedures. Whenever possible, minimize the use of hazardous materials and generation of hazardous wastes. All hazardous waste materials will be disposed in the manner specified by federal, state, or local regulations or by the manufacturer. Use containment berms in fueling and maintenance areas and where potential for spills is high. A foreman or supervisor should be designated in writing to oversee, enforce and instruct construction workers on proper hazardous waste procedures. The location of any hazardous waste storage areas should be indicated on the stormwater pollution prevention plan by the operator following on-site location of the facility. During construction, water trucks should be used, as needed, by each contractor or subcontractor to reduce dust. After construction, the site should be stabilized to reduce dust. Construction traffic should enter and exit the site at a Construction Entrance with a rock pad or equivalent device. The purpose of the rock pad is to minimize the amount of soil and mud that is tracked into existing streets. If sediment escapes the construction site, off-site accumulations of sediment must be removed at a frequency sufficient to minimize offsite impacts. Discharge of hazardous substances or oil into stormwater is subject to reporting requirements. In the event of a spill of a hazardous substance, the operator is required to notify the National Response Center (1-800-424-8802) to properly report the spill. In addition, the operator shall submit a written description of the release (including the type and amount of material released, the date of the release, the circumstances of the release, and the steps to be taken to prevent future spills) to the local MS-4. In the event of small spills, please contact the construction supervisor. In the event of spills that require removal of soils or other materials, please contact the construction supervisor, developer, County Surveyor's Office and the Local Fire Department. In the event of spills that have potential groundwater or surface water contamination, please contact the construction supervisor, developer, County Surveyor's Office, Local Emergency Response, IDEM, and the City of Carmel Utility Department. Hamilton County Surveyor: 317-776-8495 Carmel Fire Department: 317-571-2600 IDEM: 317-356-2411 Carmel Utilities: 317-571-2645 Local Emergency Response: 911 PM Development Holdings, LLC 168 West Carmel Drive Carmel, Indiana 46032 Contact: Todd Pyatt Phone: (317) 379-0184 The proposed land use will consist of single family residential houses. The pollutants and sources of each pollutant normally expected from these types of land uses are listed below: Pollutant Source: Passenger vehicles, delivery vehicles, and trucks Type of Pollutant: Oil, gasoline, diesel fuel, any hydrocarbon associated with vehicular fuels and lubricants, grease, antifreeze, windshield cleaner solution, brake fluid, brake dust, rubber, glass, metal and plastic fragments, grit, road de-icing materials Pollutant Source: Residence Type of Pollutant: Cleaning solutions or solvents, leaks from HVAC equipment, grit from roof drainage, aggregate or rubber fragments from roofing system Pollutant Source: Trash dumpster Type of Pollutant: Cleaning solutions or solvents, litter (paper, plastic, general refuse associated with distributions operations), uneaten food products, bacteria Pollutant Source: Roadway Type of Pollutant: Any pollutant associated with vehicular sources, grit from asphalt wearing surface, bituminous compounds from periodic maintenance (sealing, resurfacing and patching), pavement de-icing materials, paint fragments from parking stall stripes, concrete fragments, wind-blown litter from off-site sources, and elevated water temperatures from contact with impervious surfaces Pollutant Source: Lawn and landscape areas Type of Pollutant: Fertilizers, soil, organic material (leaves, mulch, grass clippings) and pesticides The anticipated pollution sources are the vehicles that will use these future facilities, including both truck and passenger vehicle traffic. Possible pollutants include oil, gasoline, antifreeze and other pollutants associated with vehicular traffic. Compliance of the site with the General Construction Permit remains the responsibility of all operators that have submitted an NOI until such time as they have submitted a Notice of Termination (NOT). The permittee's authorization to discharge under the General Construction Permit terminates at midnight of the day the NOT is signed. All permittees must submit an NOT within thirty (30) days after one or more of the following conditions have been met: 1.Final stabilization has been achieved on all portions of the site for which the permittee was responsible. 2.Another operator/permittee has assumed control over all areas of the site that have not been finally stabilized. 3.In residential construction operations, temporary stabilization has been completed and the residence has been transferred to the homeowner. 5.Precast concrete manholes 4.Concrete culverts 3.Concrete drainage pipe 2.Road base 1.Structural fill The following construction materials will be staged or stored on site at various points during development of the site. 11.Groundwater Chemical oxygen demand and Iron. 10.Concrete wash-out 9.Soil tracking off site from construction equipment 8.Windblown dust 7.Litter 6.Sanitary waste from temporary toilet facilities 5.Leaking vehicles and equipment 4.Exposed soils 3.Fuel storage areas and fueling stations 2.Construction waste material 1.Material storage areas (more specifically described below) The following potential pollutant sources may be associated with construction activities on site: Soil information from the Hamilton County Soil Survey is shown on Sheet C306. This includes a copy of the soil map, descriptions of the soils and a description of how this site will accommodate existing soil limitations. There should be no potential discharges into the groundwater on this site. a.Construction entrance will be in place prior to this phase of construction. Entrance is shown for reference on Sheet C306 - C307. The contractor has the option to use one of several storm sewer inlet protection methods, depending on the inlet location and the stage of construction. Refer to Sheet C306-C307 for locations and refer to Sheet C310 for details. Manufactured products such as the Dandy Bag or Catch-All products may also be used at the contractor's discretion. Manufactured products shall be installed in accordance with the manufacturer's specifications. b.For dimensions of these measures see sheets C306-307 All impacted areas, as well as all erosion and sediment control devices, will be inspected every seven (7) calendar days and within 24 hours after a rainfall of 0.5 inch or greater until an NOT is issued. Inspection reports after rain events are to be submitted to the City of Carmel Engineering Department One, Civic Square, attention Storm Water Administrator. Inspections shall be conducted and a written report prepared, by a designated and qualified person familiar with the USEPA NPDES Storm Water General Permit, and the Project. Inspection reports shall be completed including scope of the inspection, name(s) and qualifications of personnel making the inspection, the date of the inspection, observations relating to the implementation of the SWPPP, and any actions taken as a result of incidents of noncompliance noted during the inspection. The inspection report should state whether the site was in compliance or identify any incidents of noncompliance. The contractor shall keep a copy of the inspection reports on site and permanently for a period of two years following construction. The on-site reports may be requested by inspections conducted by the local MS-4. Locations where vehicles exit the site shall be inspected for evidence of off-site sediment tracking. Each contractor and subcontractor shall be responsible for maintaining the Construction Entrance and other controls. Inspectors must evaluate areas used for storage of materials that are exposed to precipitation. The purpose is to ensure that materials are protected and/or impounded so that pollutants cannot discharge from storage areas. Off-site material storage areas used solely by the subject project are considered to be part of the project and must be included in the erosion control plans and the site inspection reports. All controls should be inspected at least once every seven (7) calendar days and following any storm event of 0.5 inch or greater. The following is a list of inspection/maintenance practices that will be used for specific controls: 1.Geotextiles/Erosion Control Mats: Missing or loose matting must be replaced or re-anchored. 2.Curb Inlet Protection shall be cleaned at least once per week and after every 0.5 inch rainfall event. 3.Mulching: Inspected for thin or bare spots caused by natural decomposition or weather-related events. Mulch in high traffic area should be replaced on a regular basis to maintain uniform protection. 4.Silt Fence: Removal of built-up sediment will occur when the sediment reaches one-third the height of the fence. 5.Stabilized Construction Entrance: Periodic regrading and top dressing with additional stones. 6.Vegetation: Protect newly seeded areas from excessive runoff and traffic until vegetation is established. Establish a watering and fertilizing schedule. 7.Good Housekeeping: Litter, construction debris, and construction chemicals exposed to stormwater shall be prevented from becoming a pollutant source for stormwater discharges through screening of outfalls and daily pickup of litter.