HomeMy WebLinkAboutC3.2 - SWPPP NotesSWPPP for CONSTRUCTION SITES:-
1.
HYDROLOGIC UNIT CODE
HUC-14: # 05120201090070, Location: Longitude: W 86°13'47" / Latitude: N 39°55'40"
2. RECEIVING WATERS
The proposed development will flow throw a proposed on-site storm sewer system and
discharge into an underground detention system in the middle of the new parking lot.
After exiting the underground detention facility through an outlet control structure,
stormwater then travels to a large 48" 0 RCP in Michigan Road flowing south and
ultimately discharging into Crooked Creek.
3. ESTIMATED PEAK DISCHARGE
EXISTING
Pre -construction: 10 -year run-off 2.25 cfs
100 -year run-off 5.60 cfs
PROPOSED Under ound Detention Facility Release Rates
( 9 Y )
Post- con stru ction: 1 0 -year run-off 0.84 cfs
100 -year run-off 1.30 cfs
"These numbers were calculated using ICPR computer software.
4. STORMWATER DISCHARGE POINTS
The proposed development will flow throw a proposed on-site storm sewer system and
discharge into an underground detention system in the middle of the new parking lot.
After exitingthe underground detention facility through an outlet control structure
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stormwater then travels to a large 48" 0 RCP in Michigan Road flowing south and
ultimately discharging into Crooked Creek.
5. POTENTIAL DISCHARGES TO GROUNDWATER
None
6. SOILS MAP & DESCRIPTIONS
CrA
CrA
Br CrA
Br CrA CrA
CrA CrA
CrA
CrA
CrA
CrA CrA
CrA
T' CrA
��d cggth STREET
SOILS MAP 0
SCALE: 1 " = 120' NORTH
9. STORMWATER QUALITY SEQUENCE
STEP
#
1:
CONTACT THE CITY OF CARMEL/CLAY TWP AND HAMILTON COUNTY SURVEYOR'S OFFICE
INSTALLATION SEQUENCE
STONE ENTRANCE
AS NEEDED
TO SCHEDULE A PRE -CONSTRUCTION MEETING.
STEP
#
2:
POST AT THE ENTRANCE OF THE SITE THE (NOI) AND THE CONTACT INFORMATION OF
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TEMPORARY DIVERSIONS
THE PERSON RESPONSIBLE FOR CONSTRUCTION ACTIVITIES.
STEP
#
3:
DESIGNATE A PERSON TO BE RESPONSIBLE FOR THE SITE INSPECTIONS AFTER EACH 1/2"
PERMANENT SEEDING
WATER AS NEEDED
AFTER FINISH GRADING
RAIN AND A MINIMUM OF ONCE EACH WEEK.
STEP
#
4:
INSTALL CONSTRUCTION ENTRANCE & INLET PROTECTION ON EXISTING INLETS.
STEP
#
5:
INSTALL SILT FENCE ALONG THE PERIMETER OF THE SITE WHERE NOTED.
STEP#
6:
ROUGH GRADE SITE AND INSTALL TEMPORARY SEEDING IN ALL AREAS TO REMAIN IDLE
REMOVAL OF INLET PROTECTION
FOR 15 DAYS OR MORE.
STEP
#
7:
INSTALL REMAINING SUBSURFACE INFRASTRUCTURE.
STEP
#
8:
FINAL GRADE SITE.
STEP
#
9:
INSTALL LANDSCAPING AND FINAL SEEDING.
STEP
#
10:
REMOVE ALL SEDIMENT CONTROL PRACTICES ONCE THE SITE IS STABILIZED.
STEP
#
11:
FILE THE NOTICE OF TERMINATION (N.O.T.) WITH IDEM.
NOTE: INSTALL TEMPORARY SEEDING AFTER A SPECIFIC STAGE OF CONSTRUCTION HAS BEEN
COMPLETED TEMPORARY OR FINAL WHERE AREAS WILL BE IDLE OF CONSTRUCTION ACTIVITIES FOR A
PERIOD OF 15 DAYS OR MORE.
10. SOIL STOCKPILE, BORROW ANDZOR DISPOSAL
A soil stock pile will not be required due to the limited scope of the project.
SOILS DESCRIPTIONS & LIMITATIONS
1. Brookston Silty Clay Loam (Er - 6.5% Site) The Brookston series
consists of very deep, poorly drained soils formed in up to 20 inches
of silty material and the underlying loamy till in depressions on till
plains and moraines. Permeability is moderate in the subsoil and
moderately slow in the underlying material. Slope ranges from 0 to 2
percent. Subject soil does not present any foreseeable limitations to
the proposed development.
2. Crosby Silty Loam (CrA - 93.5% Site) The Crosby series consists
of very deep, somewhat poorly drained soils that are moderately deep
to dense till on till plains. These soils formed in loamy till that can be
capped with up to 22 inches of loess or silty material. Permeability is
moderate or moderately slow in and above the argillic horizon and
slow or very slow below the argillic horizon. Slope ranges from 0 to 2
percent. Subject soil does not present any foreseeable limitations to
the proposed development.
7. POTENTIAL CONSTRUCTION POLLUTANTS
Potential pollutants sources relative to a construction site may include, but are not limited to material
and fuel storage areas, fueling locations, exposed soils and leaking vehicle/equipment. Potential pollutants
that may appear ear at the site due to construction activities include but are not limited to diesel fuel
gasoline, concrete and concrete washout, solid waste, sediment, paint and solvents, equipment repair
products, anti -freeze and fertilizer.
8. TEMPORARY & PERMANENT STORMWATER QUALITY MEASURES
A. Location:
see sheet C4.0
B. Dimensions: see sheet C4.0
C. Detailed Specifications: see sheet C4.0 - C4.2
D. Construction Details: see sheet C4.1 - C4.2
E. Monitoring and Maintenance Guidelines:
The proposed underground detention facility and stormwater quality unit need to be kept free of
trash and debris. Allro osed lawn areas should be adequately watered and maintained with no
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bare spots to provide a thickly vegetated turf base to filter out particles.
Monitor the proposed undergound detention facility's sediment levels and remove any trash or debris. The
maintenance for any proposed post -construction water quality measures will be provided for by the building
owners' on-site property maintenance staff.
* - SEE CHART FOR MAINTENANCE REQUIREMENTS
Party responsible for monitoring and maintaining SWPPP procedures as outlined: To be Determined
Stormwater Pollution Prevention measures to be inspected/cleaned weekly and after any 24hr,-1/2-inch
rainfall event as necessary,
GENERAL NOTES
1. CONTRACTOR SHALL INSTALL ALL REQUIRED SILT FENCES,
SILT TRAPS, TREE PROTECTION AND INLET PROTECTION FOR
EXISTING INLETS PRIOR TO THE START OF ANY EARTH MOVING
OR STRIPPING.
2. CONTRACTOR SHALL INSTALL A STONE CONSTRUCTION
ENTRANCE OR SOME OTHER DEVISE PRIOR TO THE START OF
EARTHWORK AS NECESSARY TO PREVENT SOIL FROM BEING
TRACKED OR WASHED INTO EXISTING ROADWAYS.
3. LAND ALTERATIONS WHICH STRIP THE LAND OF VEGETATION
INCLUDING REGRADING, SHALL BE DONE IN A WAY THAT WILL
MINIMIZE EROSION. WHENEVER FEASIBLE, NATURAL
VEGETATION SHALL BE RETAINED AND PROTECTED. AS
GRADING IS DONE, INSTALL SILT TRAPS, SILT FENCES, SLOPE
DRAINS, TEMPORARY DIVERSIONS AND OTHER RUNOFF
CONTROL MEASURES AT APPROPRIATE LOCATIONS TO KEEP
SEDIMENT CONTAINED ON SITE.
4. ALL DISTURBED AREAS SHALL BE SEEDED AND STRAW
MULCHED AS SHOWN ON THE PLANS IMMEDIATELY AFTER
COMPLETION OF GROUND ACTIVITY. FOR LARGE PROJECTS
THIS SEEDING SHOULD BE COMPLETED IN PHASES AS THE
DIFFERENT AREAS OF THE SITE ARE COMPLETED.
5. PERMANENT AND FINAL VEGETATION OR STRUCTURAL
EROSION CONTROL DEVICES SHALL BE INSTALLED AS SOON AS
PRACTICAL UNDER THE CIRCUMSTANCES.
6. THE DURATION OF TIME WHICH AN AREA REMAINS EXPOSED
SHALL BE KEPT TO A PRACTICAL MINIMUM DEPENDING UPON
THE WEATHER. IF CONSTRUCTION ACTIVITY IS TO CEASE FOR
MORE THAN TWO WEEKS, THE DISTURBED AREAS SHALL BE
TEMPORARILY SEEDED.
7. ALL STORM SEWER INLET PROTECTION DEVICES SHALL BE PUT
IN PLACE AT THE TIME EACH INLET IS CONSTRUCTED.
8. THE CONTRACTOR SHALL MAINTAIN EROSION CONTROL
MEASURES AND DEVICES DURING CONSTRUCTION AND UNTIL
SILTATION OF THE STREETS AND STORM SEWERS WILL NO
LONGER OCCUR.
9. ONCE ONSITE EROSION AND SILTATION OF THE STREETS AND
STORM SEWERS WILL NO LONGER OCCUR, THE CONTRACTOR
SHALL REMOVE AND DISPOSE OF THE TEMPORARY EROSION
CONTROL DEVICES.
10. THESE GENERAL PROCEDURES MAY NOT COVER ALL
SITUATIONS. REFER TO EROSION CONTROL PLANS FOR
SPECIFIC NOTES AND ADDITIONAL DETAILS
11. EROSION CONTROL TO COMPLY WITH INDIANA 327 IAC AND
RULE #5, INDIANA HANDBOOK FOR EROSION CONTROL IN
DEVELOPING AREAS, AND HENDRICKS COUNTY/TOWN OF BROWNSBURG
STANDARDS AND SPECIFICATIONS.
12. ADDITIONAL EROSION CONTROL MEASURES MAY BE
REQUIRED IN THE FIELD BY THE INSPECTOR.
11. TEMPORARY & PERMANENT SURFACE STABILIZATION
Temporary seeding will be used as temporary surface stabilization measures if
areas are to be left idle for more than 15 days. See sheets C3.0 -C3.1.
Permanent seeding will be used as permanent surface stabilization measures. The
details and specifications for each stated measure are on sheets C3.0 -C3.1 and
within the final landscape plan.
12. EROSION CONTROL FOR INDIVIDUAL BUILDING LOTS
There are no individual building lots on this project.
SWPPP for POST -CONSTRUCTION:
13. MATERIAL HANDLING AND SPILL PREVENTION
Expected materials that may appear at the site due to construction activities include but are not limited to petroleum products,fertilizers
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paint and solvents, and concrete. Materials shall be stored in the designated material storage area.
Spill prevention for vehicle and equipment fuelin9 shall conform to the following Practices: vehicle equipment fuelin9 Procedures and
practices are designed to prevent fuel spills and leaks, and reduce or eliminate contamination of stormwater. This can be accomplished by
usingoffsite facilities fueling in designated areas only, enclosing or covering stored fuel implementing spill controls and training employees
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and subcontractors in proper fueling Procedures. Limitations: Onsite vehicle and equipment fuelin9 should only be used where it is impractical
to send vehicles and equipment offsite for fueling. Sending vehicles and equipment offsite should be done in conjunction with a Stabilized
Construction Entrance/Exit. Implementation: Use offsite fueling stations as much as possible. Discourage "topping -off" of fuel tanks.
Absorbent spill cleanup materials and spill kits should be available in fueling areas and on fueling trucks, and should be disposed of properly
after use. Drip Pans or absorbent pads should be used during vehicle and equipment fuelin9� unless the fueling is performed over an
impermeable surface in a dedicated fueling area. Use absorbent materials on small spills. Do not hose down or bury the spill. Remove the
absorbent materials promptly and dispose of properly. Avoid mobile fueling of mobile construction equipment around the site; rather,
transport the equipment to designated fueling areas. Train employees and subcontractors in proper fueling and cleanup procedures. Dedicated
fueling areas should be protected from stormwater runon and runoff, and should be located at least 50 ft away from downstream drainage
facilities and watercourses. Fueling must be performed on level -grade area. Protect fueling areas with berms and dikes to prevent runon,
runoff, and to contain spills. Nozzles used in vehicle and equipment fueling should be equipped with an automatic shutoff to control drips.
Fueling operations should not be left unattended. Federal, state, and local requirements should be observed for any stationary above ground
storage tanks.
Vehicles and equipment should be inspected each day of use for leaks. Leaks should be repaired immediately or problem vehicles or
equipment should be removed from the project site. Keep ample supplies of spill cleanup materials onsite. Immediately clean up spills and
properly dispose of contaminated soils.
Spill prevention for solid waste shall conform to the following practices: Solid waste management procedures and practices are designed
to prevent or reduce the discharge of pollutants to stormwater from solid or construction waste by providing designated waste collection areas
and containers arranging for regular disposal, and training employees and subcontractors. Solid waste generated from trees and shrubs
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removed during land clearing, demolition of existing structures, and building construction. Packaging materials including wood, paper, and
plastic. Scrap or surplus building materials including scrap metals, rubber, plastic, glass pieces and masonry products. Domestic wastes
including food containers such as beverage cans, coffee cups, paper bags, plastic wrappers, and cigarettes. Construction wastes including
brick, mortar, timber, steel and metal scraps, pipe and electrical cuttings, non -hazardous equipment parts, Styrofoam and other package
construction materials. Select designated waste collection areas onsite. Inform trash -hauling contractors that you will accept only watertight
dum sters for onsite use. Inspect dum sters for leaks and repair an dum ster that is not watertight. Provide an adequate number of
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containers with lids or covers that can be laced over the container to keep rain out or to prevent loss of wastes when it is windy. Plan for
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additional containers and more frequent pickup during the demolition phase of construction. Collect site trash daily, especially during rainy
and windy conditions. Remove this solid waste promptly since erosion and sediment control devices tend to collect litter. Make sure that
toxic liquid wastes (sued oils, solvents and paints) and chemicals (acids, pesticides, additives, curing compounds) are not disposed of in
dumpsters designed for construction debris. Do not hose out dumpsters on the construction site. Leave dumpster cleaning to the trash
hauling contractor. Arrange for regular waste collection before containers overflow. Clean up immediately if a container does spill. Make sure
that construction waste is collected, removed, and disposed of only at authorized disposal areas. Solid waste storage areas should be located
at least 50 ft from drainage facilities and watercourses and should not be located in areas prone to flooding or ponding. Inspect construction
waste area regularly. Arrange for regular waste collection.
Spill prevention for concrete washout shall conform to the following practices: Store dry and wet materials under cover, away from
drainage areas. Avoid mixing excess amounts of fresh concrete. Perform washout of concrete trucks offsite or in designated areas only. Do
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not wash out concrete trucks into storm drains, open ditches, streets, or streams. Do not allow excess concrete to be duped onsite, except
in designated areas. Locate washout areas at least 50 ft from storm drains, open ditches, or water bodies. Do not allow runoff from this
area by constructing a temporary pit or bermed area large enough for liquid and solid waste. Wash out wastes into the temporary pit where
the concrete can set, be broken up, and then disposed properly. Avoid creating runoff by draining water to a bermed or level area when
washing concrete to remove fine particles and expose the aggregate. Do not wash sweepings from exposed aggregate concrete into the
street or storm drain. Collect and return sweepings to aggregate base stockpile or dispose in the trash.
The cleanup parameters shall conform to the following practices: The developer / homeowners association shall be continually kept
informed, maintain lists of qualified contractors and available Vac -trucks, tank pumpers and other equipment readily accessible for cleanup
operations. In addition, a continually updated list of available absorbent materials and cleanup supplies should be kept on site. All
maintenance personnel will be made aware of techniques for prevention of spills. They will be informed of the requirements and procedures
outlined in this plan. They will be kept abreast of current developments or new information on the prevention of spills and / or necessary
alteration to this plan. When spills occur which could endanger human life and this become primary concern, the discharge of the life saving
protection function will be carried out by the local police and fire departments. Absorbent materials, which are used in cleaning up spilled
materials, will be disposed of in a manner subject to the approval of the Indiana Department of Environmental Management. Flushing of
spilled material with water will not be permitted unless so authorized by the Indiana Department of Environmental Management.
Spill prevention for vehicle and equipment maintenance shall conform to the following practices: Prevent or reduce the contamination of
stormwater resulting from vehicle and equipment maintenance by running a "dry and clean site". The best option would be to perform
maintenance activities at an offsite facility. If this option is not available then work should be performed in designated areas only, while
providing cover for materials stored outside, checking for leaks and spills, and containing and cleaning up spills immediately. These procedures
are suitable on all construction projects where an onsite yard area is necessary for storage and maintenance of heavy equipment and vehicles.
Onsite vehicle and equipment maintenance should only be used where it is impractical to send vehicles and equipment offsite for maintenance
and repair. Sending vehicles / equipment offsite should by done in conjunction with a stabilized construction entrance / exit. Out door
vehicle or equipment maintenance is a potentially significant source of stormwater pollution. Activities that can contaminate stormwater
include engine repair and service, changing or replacement of fluids, and outdoor equipment storage and parking (engine fluid leaks). If
maintenance must occur onsite, use designated areas, located away from drainage courses. Dedicated maintenance areas should be protected
from stormwater runon and runoff, and should be located at least 50 ft from downstream drainage facilities and water courses. Drip pans or
absorbent pads should be used during vehicle and equipment maintenance work that involves fluids, unless the maintenance work is performed
over and impermeable surface in a dedicated maintenance area. Place a stockpile of spill cleanup materials where it will be readily accessible.
All fueling trucks and fueling areas are required to have spill kits and/or use other spill protection devices. Use absorbent materials on small
spills. Remove the absorbent materials promptly and dispose of properly. Inspect onsite vehicles and equipment daily at startup for leaks,
and repair immediately. Deep vehicles and equipment clean; do not allow excessive buildup of oil and grease. Segregate and recycle wastes,
such as greases, used oil or oil filters antifreeze cleaning solutions automotive batteries hydraulic and transmission fluids. Provide
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secondary containment and covers for these materials if stored onsite. Train employees and subcontractors in proper maintenance and spill
cleanup procedures. Drip pans or plastic sheeting should by placed under all vehicles and equipment placed on docks, barges, other
structures over water bodies when the vehicle or equipment is planned to be idle for more than 1 hour. Properly dispose of used oils, fluids,
lubricants, and spill cleanup materials. Properly dispose of or recycle used batteries. Do not place used oil in a dumpster or pour into a
storm drain or water course. Properly dispose of used oils, fluids, lubricants, and spill cleanup materials. Don not bury tires. Repair leaks
of fluids and oil immediately.
Spill prevention for fertilizers shall conform to the following practices: Fertilizer's used will be applied only in the minimum amounts
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recommended by the manufacturer. Once applied, fertilizer will be worked into the soil to limit exposure to storm water. The contents of any
partially used bags of fertilizer will be transferred to a sealable plastic bin to avoid spills.
Spill prevention for paint and solvents shall conform to the following practices: All containers will be tightly sealed and stored when not
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required for use. EXCESS PAINT WILL NOT BE DISCHARGED TO THE STORM SEWER SYSTEM but will be properly disposed of according to
manufacturers' instructions or State or local regulations.
Spill prevention and cleanup shall conform to IDEM form 327 IAC 2-6 and the Local Fire Department shall be contacted in the case of
a material spill occurring.
14. CONTACT INFORMATION
BLAKE EPPERSON - FREDDY'S FROZEN CUSTARD & STEAKBURGERS (316)-617-8880
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT EMERGENCY REPONSE: 1-888-233-7745
CARMEL/CLAY DEPARTMENT OF COMMUNITY SERVICES: 317-571-2417
CARMEL CLAY TWP. FIRE DEPARTMENT: 317-571-2600 (ADMIN.); 911 FOR EMERGENCIES
HAMILTON COUNTY SURVEYOR'S OFFICE: 317-776-8495
EROSION CONTROL MEASURES MAINTENANCE REQUIREMENTS
SILT FENCE MAINTENANCE REQUIREMENTS
1. INSPECT THE SILT FENCE PERIODICALLY AND AFTER EACH STORM EVENT.
2. IF FENCE FABRIC TEARS, STARTS TO DECOMPOSE, OR IN ANY WAY BECOMES
INEFFECTIVE REPLACE THE AFFECTED PORTION IMMEDIATELY.
3. REMOVE DEPOSITED SEDIMENT WHEN IT REACHES HALF THE HEIGHT OF THE FENCE AT
ITS LOWEST POINT OR IS CAUSING THE FABRIC TO BULGE.
4. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEAN OUT.
5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE FENCE
AND SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE, AND STABILIZE.
STORM INLET PROTECTION MAINTENANCE REQUIREMENTS
1. INSPECT FREQUENTLY FOR DAMAGE BY VEHICULAR TRAFFIC, AND REPAIR IF NECESSARY.
2. INSPECT AFTER EACH STORM EVENT.
3. REMOVE SEDIMENT, WITHOUT FLUSHING, WHEN IT REACHES HALF THE HEIGHT OF THE BARRIER.
4. DEPOSIT REMOVED SEDIMENT WHERE IT WILL NOT ENTER STORM DRAINS.
STORM SEWER INLET PROTECTION MAINTENANCE REQUIREMENTS
1. AFTER EACH STORM EVENT, REMOVE THE SEDIMENT AND REPLACE THE STORM INLET PROTECTION BAG.
2. PERIODICALLY REMOVE SEDIMENT AND TRACKED -ON SOIL FROM THE STREET, WITHOUT FLUSHING, TO
REDUCE THE SEDIMENT LOAD ON THE INLET PROTECTION.
3. INSPECT PERIODICALLY FOR DAMAGE AND REPAIR; KEEP GRATES FREE OF DEBRIS.
4. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE STORM INLET
PROTECTION BAG AND ANY SEDIMENT, AND DISPOSE OF PROPERLY.
EROSION CONTROL BLANKET (SURFACE APPLIED) MAINTENANCE REQUIREMENTS
1. DURING VEGETATIVE ESTABLISHMENT, INSPECT AFTER STORM EVENTS FOR ANY EROSION BELOW THE BLANKET.
2. IF ANY AREA SHOWS EROSION, PULL BACK THAT PORTION OF THE BLANKET COVERING IT, ADD SOIL, RE -SEED
THE AREA AND RE-LAY AND STAPLE THE BLANKET.
3. AFTER VEGETATIVE ESTABLISHMENT, CHECK THE TREATED AREA PERIODICALLY.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS
1. POTENTIAL LANDUSE POLLUTANTS
Potential pollutant sources that may appear at the site due to proposed land use activities but are
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not limited to vehicles, exposed soil and trash. Potential pollutants include, but are not limited to
fertilizer, oil, hydraulic/brake fluid, grease, diesel fuel, gasoline, anti -freeze, auto soap and fertilizer.
2. POST -CONSTRUCTION STORMWATER QUALITY MEASURES:
A. Location: see sheets C2.2 & C3.0
B. Dimensions: see sheets C2.2, C3.0, & C6.0
C. Sizing Calculations: see Drainage Calculations
D. Detailed Specifications: see sheets C10.0 & C10.1
E. Construction Details: see sheets C3.1, C3.2, C10.0 & C10.1
R
A new offline 4 diameter Downstream Defender0 by Y 9 Hydra International along with its diversion
manhole will serve as one of the project site post -construction stormwater quality measures. The
proposed 4' diameter Downstream Defender0 hydrodynamic separator and the new 5' diameter
diversion manhole have been designed to treat the stormwater runoff from the full developed
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subject site. The post -developed stormwater runoff will also travel to a proposed underground
detention facility with an Isolator Row before being discharged into the existing storm sewer
system along Michigan Road. All proposed lawn areas and landscaping should be adequately
watered and maintained with no bare spots to provide a thickly vegetated turf base to filter out
particles.
Remove any trash and debris from Storm Structure #BMP, #103, and #101. The maintenance for the
proposed post -construction water quality measures will be provided for by the owners' on-site
property maintenance staff.
3. SEQUENCE DESCRIBING STORMWATER
QUALITY MEASURE IMPLEMENTATION
The post -construction stormwater quality measures that have been proposed for this project are a 4' Dia.
Downstream Defender0, 5' Dia. Diversion Manhole, and new underground detention facility using SC -310
StormTech Chambers. The post -developed stormwater runoff will travel through the new on-site storm sewer
system then divert to the downstream defender for stormwater quality treatment and finally enter the
proposed underground detention facility. Final stormwater quality measures will be implemented as grading is
finalized. Sequences of stormwater quality items are described in the erosion control schedule in number (9),
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4. STORMWATER QUALITY MEASURES TO BE IMPLEMENTED TO
PREVENT OR MINIMIZE ADVERSE IMPACTS TO STREAM &
RIPARIAN HABITATS:
The proposed post -construction BMPs as well as the abundance of plush turf and landscaping will generate
very little if any pollutants that could cause harm to the downstream underground detention facility, it's
stream outlet, or riparian habitats.
5. AN
EROSION CONTROL SCHEDULE
EROSION CONTROL MEASURE
* MAINTENANCE
INSTALLATION SEQUENCE
STONE ENTRANCE
AS NEEDED
PRIOR TO CLEARING AND GRADING
SILT FENCE
WEEKLY AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TREE PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TEMPORARY DIVERSIONS
WEEKLY AFTER STORM EVENTS AND AS NEEDED
ALONG WITH ROUGH GRADING
RIP -RAP HORSESHOE
WEEKLY AFTER STORM EVENTS AND AS NEEDED
IMMEDIATELY AFTER DETENTION BASIN CONSTRUCTION
PERMANENT SEEDING
WATER AS NEEDED
AFTER FINISH GRADING
EROSION CONTROL MATTING
WEEKLY AFTER STORM EVENTS AND AS NEEDED
AFTER FINISH GRADING
SEED SOD & LANDSCAPE AROUND
WATER AS NEEDED
AFTER FINISHED GRADING AROUND FINISHED UNITS
UNITS FINISHED
REMOVAL OF INLET PROTECTION
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED
REMOVAL OF SILT FENCE
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED
REMOVAL OF RIP RAP HORSESHOE
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS ARE STABILIZED
* - SEE CHART FOR MAINTENANCE REQUIREMENTS
Party responsible for monitoring and maintaining SWPPP procedures as outlined: To be Determined
Stormwater Pollution Prevention measures to be inspected/cleaned weekly and after any 24hr,-1/2-inch
rainfall event as necessary,
GENERAL NOTES
1. CONTRACTOR SHALL INSTALL ALL REQUIRED SILT FENCES,
SILT TRAPS, TREE PROTECTION AND INLET PROTECTION FOR
EXISTING INLETS PRIOR TO THE START OF ANY EARTH MOVING
OR STRIPPING.
2. CONTRACTOR SHALL INSTALL A STONE CONSTRUCTION
ENTRANCE OR SOME OTHER DEVISE PRIOR TO THE START OF
EARTHWORK AS NECESSARY TO PREVENT SOIL FROM BEING
TRACKED OR WASHED INTO EXISTING ROADWAYS.
3. LAND ALTERATIONS WHICH STRIP THE LAND OF VEGETATION
INCLUDING REGRADING, SHALL BE DONE IN A WAY THAT WILL
MINIMIZE EROSION. WHENEVER FEASIBLE, NATURAL
VEGETATION SHALL BE RETAINED AND PROTECTED. AS
GRADING IS DONE, INSTALL SILT TRAPS, SILT FENCES, SLOPE
DRAINS, TEMPORARY DIVERSIONS AND OTHER RUNOFF
CONTROL MEASURES AT APPROPRIATE LOCATIONS TO KEEP
SEDIMENT CONTAINED ON SITE.
4. ALL DISTURBED AREAS SHALL BE SEEDED AND STRAW
MULCHED AS SHOWN ON THE PLANS IMMEDIATELY AFTER
COMPLETION OF GROUND ACTIVITY. FOR LARGE PROJECTS
THIS SEEDING SHOULD BE COMPLETED IN PHASES AS THE
DIFFERENT AREAS OF THE SITE ARE COMPLETED.
5. PERMANENT AND FINAL VEGETATION OR STRUCTURAL
EROSION CONTROL DEVICES SHALL BE INSTALLED AS SOON AS
PRACTICAL UNDER THE CIRCUMSTANCES.
6. THE DURATION OF TIME WHICH AN AREA REMAINS EXPOSED
SHALL BE KEPT TO A PRACTICAL MINIMUM DEPENDING UPON
THE WEATHER. IF CONSTRUCTION ACTIVITY IS TO CEASE FOR
MORE THAN TWO WEEKS, THE DISTURBED AREAS SHALL BE
TEMPORARILY SEEDED.
7. ALL STORM SEWER INLET PROTECTION DEVICES SHALL BE PUT
IN PLACE AT THE TIME EACH INLET IS CONSTRUCTED.
8. THE CONTRACTOR SHALL MAINTAIN EROSION CONTROL
MEASURES AND DEVICES DURING CONSTRUCTION AND UNTIL
SILTATION OF THE STREETS AND STORM SEWERS WILL NO
LONGER OCCUR.
9. ONCE ONSITE EROSION AND SILTATION OF THE STREETS AND
STORM SEWERS WILL NO LONGER OCCUR, THE CONTRACTOR
SHALL REMOVE AND DISPOSE OF THE TEMPORARY EROSION
CONTROL DEVICES.
10. THESE GENERAL PROCEDURES MAY NOT COVER ALL
SITUATIONS. REFER TO EROSION CONTROL PLANS FOR
SPECIFIC NOTES AND ADDITIONAL DETAILS
11. EROSION CONTROL TO COMPLY WITH INDIANA 327 IAC AND
RULE #5, INDIANA HANDBOOK FOR EROSION CONTROL IN
DEVELOPING AREAS, AND HENDRICKS COUNTY/TOWN OF BROWNSBURG
STANDARDS AND SPECIFICATIONS.
12. ADDITIONAL EROSION CONTROL MEASURES MAY BE
REQUIRED IN THE FIELD BY THE INSPECTOR.
11. TEMPORARY & PERMANENT SURFACE STABILIZATION
Temporary seeding will be used as temporary surface stabilization measures if
areas are to be left idle for more than 15 days. See sheets C3.0 -C3.1.
Permanent seeding will be used as permanent surface stabilization measures. The
details and specifications for each stated measure are on sheets C3.0 -C3.1 and
within the final landscape plan.
12. EROSION CONTROL FOR INDIVIDUAL BUILDING LOTS
There are no individual building lots on this project.
SWPPP for POST -CONSTRUCTION:
13. MATERIAL HANDLING AND SPILL PREVENTION
Expected materials that may appear at the site due to construction activities include but are not limited to petroleum products,fertilizers
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paint and solvents, and concrete. Materials shall be stored in the designated material storage area.
Spill prevention for vehicle and equipment fuelin9 shall conform to the following Practices: vehicle equipment fuelin9 Procedures and
practices are designed to prevent fuel spills and leaks, and reduce or eliminate contamination of stormwater. This can be accomplished by
usingoffsite facilities fueling in designated areas only, enclosing or covering stored fuel implementing spill controls and training employees
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and subcontractors in proper fueling Procedures. Limitations: Onsite vehicle and equipment fuelin9 should only be used where it is impractical
to send vehicles and equipment offsite for fueling. Sending vehicles and equipment offsite should be done in conjunction with a Stabilized
Construction Entrance/Exit. Implementation: Use offsite fueling stations as much as possible. Discourage "topping -off" of fuel tanks.
Absorbent spill cleanup materials and spill kits should be available in fueling areas and on fueling trucks, and should be disposed of properly
after use. Drip Pans or absorbent pads should be used during vehicle and equipment fuelin9� unless the fueling is performed over an
impermeable surface in a dedicated fueling area. Use absorbent materials on small spills. Do not hose down or bury the spill. Remove the
absorbent materials promptly and dispose of properly. Avoid mobile fueling of mobile construction equipment around the site; rather,
transport the equipment to designated fueling areas. Train employees and subcontractors in proper fueling and cleanup procedures. Dedicated
fueling areas should be protected from stormwater runon and runoff, and should be located at least 50 ft away from downstream drainage
facilities and watercourses. Fueling must be performed on level -grade area. Protect fueling areas with berms and dikes to prevent runon,
runoff, and to contain spills. Nozzles used in vehicle and equipment fueling should be equipped with an automatic shutoff to control drips.
Fueling operations should not be left unattended. Federal, state, and local requirements should be observed for any stationary above ground
storage tanks.
Vehicles and equipment should be inspected each day of use for leaks. Leaks should be repaired immediately or problem vehicles or
equipment should be removed from the project site. Keep ample supplies of spill cleanup materials onsite. Immediately clean up spills and
properly dispose of contaminated soils.
Spill prevention for solid waste shall conform to the following practices: Solid waste management procedures and practices are designed
to prevent or reduce the discharge of pollutants to stormwater from solid or construction waste by providing designated waste collection areas
and containers arranging for regular disposal, and training employees and subcontractors. Solid waste generated from trees and shrubs
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removed during land clearing, demolition of existing structures, and building construction. Packaging materials including wood, paper, and
plastic. Scrap or surplus building materials including scrap metals, rubber, plastic, glass pieces and masonry products. Domestic wastes
including food containers such as beverage cans, coffee cups, paper bags, plastic wrappers, and cigarettes. Construction wastes including
brick, mortar, timber, steel and metal scraps, pipe and electrical cuttings, non -hazardous equipment parts, Styrofoam and other package
construction materials. Select designated waste collection areas onsite. Inform trash -hauling contractors that you will accept only watertight
dum sters for onsite use. Inspect dum sters for leaks and repair an dum ster that is not watertight. Provide an adequate number of
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containers with lids or covers that can be laced over the container to keep rain out or to prevent loss of wastes when it is windy. Plan for
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additional containers and more frequent pickup during the demolition phase of construction. Collect site trash daily, especially during rainy
and windy conditions. Remove this solid waste promptly since erosion and sediment control devices tend to collect litter. Make sure that
toxic liquid wastes (sued oils, solvents and paints) and chemicals (acids, pesticides, additives, curing compounds) are not disposed of in
dumpsters designed for construction debris. Do not hose out dumpsters on the construction site. Leave dumpster cleaning to the trash
hauling contractor. Arrange for regular waste collection before containers overflow. Clean up immediately if a container does spill. Make sure
that construction waste is collected, removed, and disposed of only at authorized disposal areas. Solid waste storage areas should be located
at least 50 ft from drainage facilities and watercourses and should not be located in areas prone to flooding or ponding. Inspect construction
waste area regularly. Arrange for regular waste collection.
Spill prevention for concrete washout shall conform to the following practices: Store dry and wet materials under cover, away from
drainage areas. Avoid mixing excess amounts of fresh concrete. Perform washout of concrete trucks offsite or in designated areas only. Do
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not wash out concrete trucks into storm drains, open ditches, streets, or streams. Do not allow excess concrete to be duped onsite, except
in designated areas. Locate washout areas at least 50 ft from storm drains, open ditches, or water bodies. Do not allow runoff from this
area by constructing a temporary pit or bermed area large enough for liquid and solid waste. Wash out wastes into the temporary pit where
the concrete can set, be broken up, and then disposed properly. Avoid creating runoff by draining water to a bermed or level area when
washing concrete to remove fine particles and expose the aggregate. Do not wash sweepings from exposed aggregate concrete into the
street or storm drain. Collect and return sweepings to aggregate base stockpile or dispose in the trash.
The cleanup parameters shall conform to the following practices: The developer / homeowners association shall be continually kept
informed, maintain lists of qualified contractors and available Vac -trucks, tank pumpers and other equipment readily accessible for cleanup
operations. In addition, a continually updated list of available absorbent materials and cleanup supplies should be kept on site. All
maintenance personnel will be made aware of techniques for prevention of spills. They will be informed of the requirements and procedures
outlined in this plan. They will be kept abreast of current developments or new information on the prevention of spills and / or necessary
alteration to this plan. When spills occur which could endanger human life and this become primary concern, the discharge of the life saving
protection function will be carried out by the local police and fire departments. Absorbent materials, which are used in cleaning up spilled
materials, will be disposed of in a manner subject to the approval of the Indiana Department of Environmental Management. Flushing of
spilled material with water will not be permitted unless so authorized by the Indiana Department of Environmental Management.
Spill prevention for vehicle and equipment maintenance shall conform to the following practices: Prevent or reduce the contamination of
stormwater resulting from vehicle and equipment maintenance by running a "dry and clean site". The best option would be to perform
maintenance activities at an offsite facility. If this option is not available then work should be performed in designated areas only, while
providing cover for materials stored outside, checking for leaks and spills, and containing and cleaning up spills immediately. These procedures
are suitable on all construction projects where an onsite yard area is necessary for storage and maintenance of heavy equipment and vehicles.
Onsite vehicle and equipment maintenance should only be used where it is impractical to send vehicles and equipment offsite for maintenance
and repair. Sending vehicles / equipment offsite should by done in conjunction with a stabilized construction entrance / exit. Out door
vehicle or equipment maintenance is a potentially significant source of stormwater pollution. Activities that can contaminate stormwater
include engine repair and service, changing or replacement of fluids, and outdoor equipment storage and parking (engine fluid leaks). If
maintenance must occur onsite, use designated areas, located away from drainage courses. Dedicated maintenance areas should be protected
from stormwater runon and runoff, and should be located at least 50 ft from downstream drainage facilities and water courses. Drip pans or
absorbent pads should be used during vehicle and equipment maintenance work that involves fluids, unless the maintenance work is performed
over and impermeable surface in a dedicated maintenance area. Place a stockpile of spill cleanup materials where it will be readily accessible.
All fueling trucks and fueling areas are required to have spill kits and/or use other spill protection devices. Use absorbent materials on small
spills. Remove the absorbent materials promptly and dispose of properly. Inspect onsite vehicles and equipment daily at startup for leaks,
and repair immediately. Deep vehicles and equipment clean; do not allow excessive buildup of oil and grease. Segregate and recycle wastes,
such as greases, used oil or oil filters antifreeze cleaning solutions automotive batteries hydraulic and transmission fluids. Provide
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secondary containment and covers for these materials if stored onsite. Train employees and subcontractors in proper maintenance and spill
cleanup procedures. Drip pans or plastic sheeting should by placed under all vehicles and equipment placed on docks, barges, other
structures over water bodies when the vehicle or equipment is planned to be idle for more than 1 hour. Properly dispose of used oils, fluids,
lubricants, and spill cleanup materials. Properly dispose of or recycle used batteries. Do not place used oil in a dumpster or pour into a
storm drain or water course. Properly dispose of used oils, fluids, lubricants, and spill cleanup materials. Don not bury tires. Repair leaks
of fluids and oil immediately.
Spill prevention for fertilizers shall conform to the following practices: Fertilizer's used will be applied only in the minimum amounts
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recommended by the manufacturer. Once applied, fertilizer will be worked into the soil to limit exposure to storm water. The contents of any
partially used bags of fertilizer will be transferred to a sealable plastic bin to avoid spills.
Spill prevention for paint and solvents shall conform to the following practices: All containers will be tightly sealed and stored when not
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required for use. EXCESS PAINT WILL NOT BE DISCHARGED TO THE STORM SEWER SYSTEM but will be properly disposed of according to
manufacturers' instructions or State or local regulations.
Spill prevention and cleanup shall conform to IDEM form 327 IAC 2-6 and the Local Fire Department shall be contacted in the case of
a material spill occurring.
14. CONTACT INFORMATION
BLAKE EPPERSON - FREDDY'S FROZEN CUSTARD & STEAKBURGERS (316)-617-8880
INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT EMERGENCY REPONSE: 1-888-233-7745
CARMEL/CLAY DEPARTMENT OF COMMUNITY SERVICES: 317-571-2417
CARMEL CLAY TWP. FIRE DEPARTMENT: 317-571-2600 (ADMIN.); 911 FOR EMERGENCIES
HAMILTON COUNTY SURVEYOR'S OFFICE: 317-776-8495
EROSION CONTROL MEASURES MAINTENANCE REQUIREMENTS
SILT FENCE MAINTENANCE REQUIREMENTS
1. INSPECT THE SILT FENCE PERIODICALLY AND AFTER EACH STORM EVENT.
2. IF FENCE FABRIC TEARS, STARTS TO DECOMPOSE, OR IN ANY WAY BECOMES
INEFFECTIVE REPLACE THE AFFECTED PORTION IMMEDIATELY.
3. REMOVE DEPOSITED SEDIMENT WHEN IT REACHES HALF THE HEIGHT OF THE FENCE AT
ITS LOWEST POINT OR IS CAUSING THE FABRIC TO BULGE.
4. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEAN OUT.
5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE FENCE
AND SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE, AND STABILIZE.
STORM INLET PROTECTION MAINTENANCE REQUIREMENTS
1. INSPECT FREQUENTLY FOR DAMAGE BY VEHICULAR TRAFFIC, AND REPAIR IF NECESSARY.
2. INSPECT AFTER EACH STORM EVENT.
3. REMOVE SEDIMENT, WITHOUT FLUSHING, WHEN IT REACHES HALF THE HEIGHT OF THE BARRIER.
4. DEPOSIT REMOVED SEDIMENT WHERE IT WILL NOT ENTER STORM DRAINS.
STORM SEWER INLET PROTECTION MAINTENANCE REQUIREMENTS
1. AFTER EACH STORM EVENT, REMOVE THE SEDIMENT AND REPLACE THE STORM INLET PROTECTION BAG.
2. PERIODICALLY REMOVE SEDIMENT AND TRACKED -ON SOIL FROM THE STREET, WITHOUT FLUSHING, TO
REDUCE THE SEDIMENT LOAD ON THE INLET PROTECTION.
3. INSPECT PERIODICALLY FOR DAMAGE AND REPAIR; KEEP GRATES FREE OF DEBRIS.
4. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, REMOVE THE STORM INLET
PROTECTION BAG AND ANY SEDIMENT, AND DISPOSE OF PROPERLY.
EROSION CONTROL BLANKET (SURFACE APPLIED) MAINTENANCE REQUIREMENTS
1. DURING VEGETATIVE ESTABLISHMENT, INSPECT AFTER STORM EVENTS FOR ANY EROSION BELOW THE BLANKET.
2. IF ANY AREA SHOWS EROSION, PULL BACK THAT PORTION OF THE BLANKET COVERING IT, ADD SOIL, RE -SEED
THE AREA AND RE-LAY AND STAPLE THE BLANKET.
3. AFTER VEGETATIVE ESTABLISHMENT, CHECK THE TREATED AREA PERIODICALLY.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS
1. POTENTIAL LANDUSE POLLUTANTS
Potential pollutant sources that may appear at the site due to proposed land use activities but are
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not limited to vehicles, exposed soil and trash. Potential pollutants include, but are not limited to
fertilizer, oil, hydraulic/brake fluid, grease, diesel fuel, gasoline, anti -freeze, auto soap and fertilizer.
2. POST -CONSTRUCTION STORMWATER QUALITY MEASURES:
A. Location: see sheets C2.2 & C3.0
B. Dimensions: see sheets C2.2, C3.0, & C6.0
C. Sizing Calculations: see Drainage Calculations
D. Detailed Specifications: see sheets C10.0 & C10.1
E. Construction Details: see sheets C3.1, C3.2, C10.0 & C10.1
R
A new offline 4 diameter Downstream Defender0 by Y 9 Hydra International along with its diversion
manhole will serve as one of the project site post -construction stormwater quality measures. The
proposed 4' diameter Downstream Defender0 hydrodynamic separator and the new 5' diameter
diversion manhole have been designed to treat the stormwater runoff from the full developed
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subject site. The post -developed stormwater runoff will also travel to a proposed underground
detention facility with an Isolator Row before being discharged into the existing storm sewer
system along Michigan Road. All proposed lawn areas and landscaping should be adequately
watered and maintained with no bare spots to provide a thickly vegetated turf base to filter out
particles.
Remove any trash and debris from Storm Structure #BMP, #103, and #101. The maintenance for the
proposed post -construction water quality measures will be provided for by the owners' on-site
property maintenance staff.
3. SEQUENCE DESCRIBING STORMWATER
QUALITY MEASURE IMPLEMENTATION
The post -construction stormwater quality measures that have been proposed for this project are a 4' Dia.
Downstream Defender0, 5' Dia. Diversion Manhole, and new underground detention facility using SC -310
StormTech Chambers. The post -developed stormwater runoff will travel through the new on-site storm sewer
system then divert to the downstream defender for stormwater quality treatment and finally enter the
proposed underground detention facility. Final stormwater quality measures will be implemented as grading is
finalized. Sequences of stormwater quality items are described in the erosion control schedule in number (9),
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4. STORMWATER QUALITY MEASURES TO BE IMPLEMENTED TO
PREVENT OR MINIMIZE ADVERSE IMPACTS TO STREAM &
RIPARIAN HABITATS:
The proposed post -construction BMPs as well as the abundance of plush turf and landscaping will generate
very little if any pollutants that could cause harm to the downstream underground detention facility, it's
stream outlet, or riparian habitats.
5. AN
OPERATION &
MAINTENANCE
MANUAL
FOR ALL
POST -CONSTRUCTION
STORMWATER
QUALITY
MEASURES:
Please see the attached 0&M manual for the proposed structural BMP's: a 4' diameter Downstream
DefenderO by Hydro International, 5' diameter Diversion Manhole, and the underground detention
facility.
PROJECT DESCRIPTION
1. INSPECT ENTRANCE PAD AND SEDIMENT DISPOSAL AREA WEEKLY AND AFTER STORM EVENTS OR HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL.
3. TOPDRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROADS BY BRUSHING OR SWEEPING.
FLUSHING SHOULD ONLY BE USED IF THE WATER IS CONVEYED INTO A SEDIMENT TRAP OR BASIN.
5. REPAIR ANY BROKEN ROAD PAVEMENT IMMEDIATELY.
The project proposes a 3,710± SF restaurant building that will be owned by Freddy's Frozen Custard
and Steakburgers. Additional improvements to the project site will include the associated drainage,
parking, sidewalk and utility infrastructure. This project is located at the northeast corner of N.
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Michigan Road and E. 97th Street in Carmel, Hamilton County, Indiana. The entire property totals
1.38± acres; however, the proposed construction activity associated with the building, hard surface
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and landscaping will be disturbing approximately 1.7± acres.
Storm water runoff in the post -developed condition will be collected via a new on-site storm sewer
system which will discharge into a proposed underground detention facility (SC -310 StormTech
Chambers - Qty. 259). Before entering the new sub -surface detention facility, storm water runoff
will be treated by a proposed on-site downstream defender stormwater quality unit. After the
post -developed storm water runoff is treated and detained, it will travel through a proposed outlet
control structure (Str. 101) with a minimum 6" diameter orifice along with a weir wall for
emergency overflow. The stormwater will then flow at a controlled release rate into an existing
storm sewers stem in Michigan Road. Storm water will ultimate) discharge into a 48" RCP in
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Michigan Road (US 421) flowing south ultimately discharging into Crooked Creek.
STORMWATER QUALITY DESCRIPTION
The proposed development will discharge via a proposed on-site storm sewer system and
subsequently flow to the previously constructed storm sewer system flowing under Michigan Road.
Before entering the existing storm infrastructure in Michigan Road, the post -developed stormwater
runoff will pass through a new offline 4' diameter Downstream Defender0 by Hydro International.
After beingtreated for stormwater quality via the new downstream defender, stormwater will be
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detained in an underground detention facility (SC -310 StormTech Chambers - Qty. 259).
CONSTRUCTION ENTRANCE INFORMATION
The location of the construction entrance is on sheet C3.0. The construction entrance specifications
are on sheet C3.1.
SHEET FLOW SEDIMENT CONTROL
Silt fence, temporary seeding will be used as erosion control measures for sheet flows. The location,
details, and specifications for each stated sediment control measure is on sheets C3.0 -C3.1.
CONCENTRATED FLOW SEDIMENT CONTROL
Sediment control measures for concentrated flow areas are not needed for this project site. All
concentrated flows will be released into the existing storm sewer system in Michigan Road.
INLET PROTECTION LOCATIONS AND SPECS
FlexStorm "Catch -it" filters will be used to protect all surface inlets. The location, details, and
specifications for each stated sediment control measure is on sheets C3.0 -C3.1.
RUNOFF CONTROL MEASURES
The runoff control measures are the same as those listed for sheet and concentrated flow control.
The details and specifications of each runoff control measure are on sheets C3.0 -C3.1.
OUTLET PROTECTION SPECIFICATIONS
Stormwater outlet protection location and specifications can be found on sheets C3.0 -C3.1.
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PROJECT NUMBER
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DRAWING NUMBER
C3.2
SHEET 9 OF 27