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Home My WebLink AboutC303-STORM WATER & POLL SPEC-Layout1S: \55960PUL -S1 \DWG \C303 -STORM WATER & POLL SPEC.dwg, 9/5/2012 10:20:05 AM, KGilson, 1 VILLAGES OF WEST CLAY, SECTION 10010 -C SITE NAME The area scheduled for construction is known as "Villges of West Clay, Section 10010 -C" (hereinafter referred to as the "Project "). PROJECT LOCATION The property is located on the South side 131st Street and West of Towne Road. Latitude: 39° 58' 29" N Longitude: 86° 12' 31" W OWNER'S INFORMATION Pulte Homes of Indiana, LLC 11590 North Meridian Street, Suite 530 Carmel, Indiana 46032 Contact Person: Matt Lohmeyer Phone: (317) 575 -2350 SWPPP FOR CONSTRUCTION SITES 1.) WATERSHED HYDROLOGIC UNIT CODE (HUC) 05120201120080 2.) NAME OF ALL RECEIVING WATERS J.W. Brendle Drain 3.) PEAK DISCHARGE FOR POST CONSTRUCTION CONDITIONS (10 year) Post - construction 10 -year discharge: 1.48 cfs 4.) SPECIFIC POINTS WHERE STORMWATER DISCHARGE WILL LEAVE THIS SITE Stormwater discharge will leave the site at the outlets for Lake $1 and p2. Ultimately both outlets drain to the JW Brendle Drain. 5.) LOCATIONS WHERE STORMWATER MAY BE DIRECTLY DISCHARGED INTO GROUNDWATER (abandoned wills or sinkholes) There should be no potential discharges into the groundwater on this site. 6.) SOILS MAP WITH DESCRIPTIONS AND LIMITATIONS Soil information from the Hamilton County Soil Survey is shown on Sheet C304. This includes a copy of the soil map, descriptions of the soils. There are no issues with existing soil limitations. 7.) DESCRIPTION OF POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH CONSTRUCTION ACTIVITIES The following potential pollutant sources may be associated with construction activities on site: 1. Material storage areas (more specifically described below) 2. Construction waste material 3. Fuel storage areas and fueling stations 4. Exposed soils 5. Leaking vehicles and equipment 6. Sanitary waste from temporary toilet facilities 7. Litter 8. Windblown dust 9. Soil tracking off site from construction equipment 10. Concrete wash -out 11. Groundwater Chemical oxygen demand and Iron. The following construction materials will be staged or stored on site at various points during development of the site. 1. Structural fill 2. Road base 3. Concrete drainage pipe 4. Concrete culverts 5. Precast concrete manholes 8.) TEMPORARY AND PERMANENT STORMWATER OUALITY MEASURES a. Construction entrance will be in place prior to this phase of construction. Entrance is shown for reference on Sheets C300 and C301. 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 Sheets C300 -C301 for locations and refer to Sheet C304 for details. Manufactured products such as the Dandy Bag or Catch -AII 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 0300 -301 c. Proposed detention basins shall be used to extend detention times to achieve stormwater quality Riprap revetment 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 h droseedin Erosion control P 9 fencing will be installed on sloped runoff where the slope n exceeds as identified of to eetsic03. Silt fencing will be utilized to minimize runoff from construction areas as identified on Sheets 0301. 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 d. Fo Construction details for these measures see sheet 304. e. Monitoring and maintenance guidelines: Inspection Schedule /Reporting 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 P n P P a q P familiar with the USEPA NPDES Storm Water General Permit, and the Project. 1 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 P 9 P P 9 noted during of the SWPPP, and any ion ties taken as a result of incidents thets of noncompliance icompliance noted identify d dg yhi iidents i of. one implianie. report tract state whether the site was in ection ce reports ortn any incidents of noncompliance. The contractor shall keep a copy io the inspection of reports may site and permanently by in for a period of two years following construction. The on -site reports may be requested by inspections conducted by the local MS -4. Construction Entrance 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. Material Storage Inspections 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 oreos. Off -site material storage areas used sed 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. Soil Stabilization Inspections 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. Erosion and Sediment Control Inspections 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 ractices that 9 9 P 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_ 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. Material Handling and Spill Prevention 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 moteriol 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. 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. 9.) GENERAL CONSTRUCTION SEQUENCE 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 Northeast side of the proposed construction entrance. The location of the posting information center is shown on Sheet C300 -C301. The posting information center is the location where a copy of the approved IDEM Rule 5 Permit, Approved SWPP Plan, signed 0 &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 C304. 4.After the maintenance and refueling area is constructed, the contractor shall construct the concrete washout area per the specifications on Sheet 0304. 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 C300 and C301_ The details and specifications for silt fence installotion are located on Sheet C304. 6.The contractor shall protect all existing inlets with drop inlet protection baskets and fiber mats as shown on Sheet 0300 and 0301. The details and specifications for the drop inlet baskets and fiber mats on Sheet 0304. 7.When the "existing" site /construction limits are completely stabilized, the contractor shall start striping the existing top soil within the construction limits and place in topsoil stockpile location shown on 0300 and 0301. 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 C200 & C201. 9.Contractor shall cut proposed swales. 10. Upon completion of swales the contractor shall install the proposed erosion control blanket in all swales as shown on Sheet C302. The details and specifications for the erosion control blanket can be found on Sheet 0304. 11. Contractor shall excavate around existing manhole on the north side of 126th street and expose the proposed connection point 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. 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. 14. Contractor shall install all concrete roll curb. 15. Contractor shall install water main. The trench area shall be seeded and mulched immediately following the installation of the water main_ 16. 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. 17. Contractor shall install all asphalt pavement. 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 Sheets 0302. The seed mixture and rate can be found on Sheet C304. 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. 10.) LOCATION OF PROPOSED SOIL STOCKPILES, BORROW, AND /OR DISPOSAL AREAS Location of the proposed topsoil stockpile is shown on sheets C300 and C301_ 11.) TEMPORARY AND PERMANENT SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON Refer to Sheet C304, within the Seasonal Soil Protection Chart. 12.) EROSION AND SEDIMENT CONTROL SPECIFICATIONS FOR INDIVIDUAL BUILDING LOTS This project includes the construction of 26 lots in Section 10010 -0 of Villages of West Clay, Section 10010 -0 consists of approximately 9.366 acres. Construction will include pad grades for the buildings, associated roadways, landscaping, and drainage infrastructure. 13.) MATERIAL HANDLING AND SPILL PREVENTION PLAN Solid Waste Disposal No solid material including building materials is permitted to be discharged to surface waters or 9 9 P 9 buried o n site. All solid waste to materials, including disposable materials s incidental to th e construction activity, must be collected in containers or closed dam stees. T he collection n containers must b e 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. Hazardous Waste 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 woste procedures. The location of any hazardous woste storage areas should be indicated on the stormwater pollution prevention plan by the operator following on -site location of the facility. Dust Control /Off -site Vehicle Tracking 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 o rock pad o r 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. Spill Response Directions 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 construction suture soils) to tee lent, MS -4. th the quire of small fp pill p r oe er mat tae se cn 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 - 733 -2855 Local Emergency Response: 911 Carmel Engineering Dept.: (317) 571 -2441 14.) OPERATOR'S INFORMATION PULTE HOMES OF INDIANA, LLC 11590 NORTH MERIDIAN STREET, SUITE 530 CARMEL, INDIANA 46032 CONTACT. MATT LOHMEYER PHONE: (317) 575 -2350 2.) LOCATION. DIMENSIONS, SPECIFICATIONS, AND CONSTRUCTION DETAILS OF EACH POST- CONSTRUCTION STORMWATER QUALITY MEASURE For Post Construction Storm Water Quality measures we have proposed the use of a Wet Pond, Sump Catch Basins and a Vorsentry manufactured BMP structures. Please see the 0 &M manual for this project prepared by Stoeppelwerth and Associates, Inc. for details and a BMP Location Map. 3.) SEQUENCE DESCRIBING STORMWATER QUALITY MEASURE IMPLEMENTATION Wet ponds will be constructed initially. Installation of the catch basins will be next in con junction with the installation of the manufactured BMP structures. Specifications can be found in the 0 &M manual for this project prepared by Stoeppelwerth and Associates, Inc 4.) STORMWATER QUALITY MEASURES TO BE IMPLEMENTED TO PREVENT OR MINIMIZE ADVERSE IMPACTS TO STREAM AND RIPARIAN HABITATS Construction Limits have been set and established mostly by silt fencing in the field and no adverse impacts to streams or riparian habitats should be encountered. 5.) DESCRIPTION OF OPERATION AND MAINTENANCE GUIDELINES FOR ALL POST - CONSTRUCTION STORMWATER QUALITY MEASURES For operation and maintenance guidelines for all post - construction storm water quality measures please refer to the 0 &M manual for this project prepared by Stoeppelwerth and Associates, Inc SWPPP FOR POST- CONSTRUCTION 1.) DESCRIPTION OF POLLUTANTS AND THEIR SOURCES ASSOCIATED WITH THE PROPOSED LAND USE 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 Pollutont: 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: Gleaning 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. 2.) Sequence Describing Stormwater Quality Measure Implementation and Description of Proposed Post Construction Stormwater Quality Measures: The post construction measures used to minimize sedimentation in waterways include several practices. 1_Swales - The proposed grassed swales will collect storm water from sheet flow areas and convey them to the storm sewer. The design of the swales will allow sediment to be partially infiltrated before storm water enters the designed storm sewer system. 2Jnlets - The proposed inlets will prevent large debris such as paper, trash and construction material from entering the storm sewer. The inlet castings are also stamped with an environmental protection stamp informing the public not to pollute the environment. 3.Lakes - The design of the loke will detain the suspended solids to settle prior to releasing the storm water. 4.Vortsentry HS EMP's - These structural BMPs will be a component of the water quality for this project. The first (402) is located within 15 feet of 126th Street for access on the southwest end of Lake 2. The second (417) is located within 15 feet of Mayne Street for access on the north side of street between lots 3 and 4. The third (426) is located within 15 feet of future Featherbell Boulevard on the east side of Lake 1. The details and specifications for these BMPs are located on Sheet C803. SEE 0 &M MANUAL FOR FURTHER DETAILS 3.) Location, Dimensions, Specifications and Construction Details of Each Stormwater Quality Measures: The following items are storm water quality measures that will remain in place after construction is completed and are considered to serve as post - construction storm water quality BMP's. 1 Vegetated swales: a. The design ed the es vegetated found can het found . Sheets C200 -seed The u sp ecificatans for of the vegetated an be can be found t Sheet 0305. The proposed seed mixture and installation 9 P P specifications can be found on Sheet C305. P 2. Inlets and inlet castings: 0. The specifications for the storm inlet castings can be found on the Sheets C802 -0803. 3. Lakes: a.The design and location of the Lakes can be found on Sheet C200 & 0201. 4.Vortsentry HS EMP's - These structural BMPs will be a component of the water quality for this project. The first (402) is located within 15 feet of 126th Street for access on the southwest end of Lake 2. The second (417) is located within 15 feet of Mayne Street for access on the north side of street between lots 3 and 4. The third (426) is located within 15 feet of future Featherbell Boulevard on the east side of Lake 1. The details and specifications for these BMPs are located on Sheet C803. SEE 0 &M MANUAL FOR FURTHER DETAILS DESCRIPTION OF MAINTENANCE GUIDELINES FOR POST- CONSTRUCTION STORMWATER QUALITY MEASURES Refer to the checklist provided within the O &M Manual for operation, maintenance and inspection of the Aqua Swirl units. The Greenwood -MS4 will perform annual inspections of the BMP. The BMP owner is responsible for the cost of maintenance and annual inspections. The BMP owner must P P maintain and update the BMP operations and maintenance plan. At a minimum, the operations and maintenance plan must include, but is not limited to: Removal of debris from inlet and outlet structures 2. Removal of sediment accumulation from structure when it has reached a depth of 36" BMP owner must routinely inspect the BMP to verify that all BMP components are functioning as designed and are not in danger of failing. The BMP needs maintenance to function as water quality and quantity enhancements. Inspections must be documented on the inspection form included in this Operation and Maintenance Manual. SEE 0 &M MANUAL FOR FURTHER DETAILS 0 REVISED PER TAC COMMENTS CO 0 0 CO �,,, gTOEPpp� ",„ ,QOP�GISTEgFO.. Fq -. No. 19358 3 11 STATE OF /�Q �S "NDIANP... S/ONAL FN .` mm- OD 0 0 z 0 0 > < C c 0 c0 O 0 we. >� tibia 0 Fw= 0 > z amtt m <D -Q0m z z Lw0a Fina w -� 0 w z IC) CC C) ma CC a F K 0 a CERTIFIED: 7/20/12 `•0 a rs Er L,4 PLAN DETAILS PREVENTION Q Z Q 0 Z r Z 0 O a Jo o U I O 7 N- LL 0 W ~ 0 O Q W J u) CLAY TOWNSHIP DRAWN Be CRC CHECKED BY BAH SHEE NO. C303 5 & A JOB NO 55960PUL