HomeMy WebLinkAboutC5.4 Construction Plan Elements1.0 SITE DESCRIPTION
1.1 Site Name:
The area scheduled for construction is known as "Greyhound Commons" (hereinafter referred to as the "Project
1.2 Project Location:
The property is located southwest of 146th Street and Lowe's Way, Carmel, Indiana, at a latitude of 39.9974 N and a
longitude of 86.1245 W.
1.3 Owner's information:
Name: Kite Greyhound, LLC
Address: 30 S. Meridian Street, Indianapolis, Indiana 46204
Representative: Eric Stickland
Title: Civil Engineer
Telephone: 317-577-5600
Facsimile: 317- 577 -5605
1.4 Operator's Information:
Name: Not Available
Address:
Representative:
Title:
Telephone:
Facsimile:
1.6 Notice of Intent:
All parties defined as owners or operators must submit a Notice of Intent (NOI) at least 48 hours prior to
commencement of on -site construction activities. Submittal of late NOl's is not prohibited; however, authorization under
the construction general permit is only for discharges that occur after permit coverage is granted. Unpermitted
discharges may be subject to enforcement actions by the EPA. For the purposes of this permit, an operator is defined
as any party meeting either of the following requirements:
a) The party has operational control over construction plans and specifications, including the ability to make
modifications to those plans and specifications.
b) The party has day -to -day operational control of those activities at a project that are necessary to ensure compliance
with a stormwater pollution prevention plan for the site or other permit conditions.
1.7 Project Description /Nature of Construction Activity:
The project consists of the construction of the development of an 8 -acre parcel. The development includes the
construction of four free standing outlet buildings and supporting facilites a nd infrastructure, not limited to the following
activities: Removal and stockpiling of topsoil and installation of sanitary sewers and laterals, water mains and laterals,
storm sewers, and other utilities. The site shall be paved and landscaped.
1.8 Legal Description of the Project Site:
See sheet C1.1 for the legal description.
1.9 Hydrologic Unit Code:
The hydrologic unit code is 05120201090030. The name of this HUC is Cool Creek Grassy Branch /Little Cool Creek.
1.10 Notation of any State or Federal Water Quality Permits:
No state or federal water quality permits are required for the development of the site.
1.11 Specific Points where stormwater discharge will leave the site:
In the proposed state, stormwater discharge will leave the site via storm sewers. The stormsewers are directed into a
series of three detention ponds before discharging to Cool Creek through Danbury Estates subdivision.
1.12 Location and name of all wetlands, lakes, and water courses on and adjacent to the site:
An existing mitigated wetland is located along the west property line. A natural wetland is located to the south.
These areas shall be avoided during construction and remain completely undisturbed. These wetlands will not be impacted
by stormwater discharges as a result of the proposed construction activities.
1.13 Identification of all receiving waters:
Cool Creek is the receiving water for the Project area.
1.14 Identification of potential discharges to groundwater:
No .otential discharges to groundwater have been identified on the site.
1.15 100 -year floe plains, floodways, and floodway fringes:
A floodplain, floodway, or floodway fringe for Cool Creek has been identified on or adjacent to the site as noted on plan
sheet C5.1.
1.16 Estimate of Peak Discharge:
The 10 -year predevelopment discharge is 15.87 cfs.
The 10 -year post construction discharge is 20.67 cfs. All stormwater will be routed to an existing series of detention ponds.
The most downstream pond will be expanded such that the 100 -year pond elevation and discharge will remain
unchanged. All stormwater detention requirements are being provided by the off -site detention ponds.
1.17 Adjacent landuses, including upstream watershed:
Adjacent landuses have been identified as follows (and as shown on the Landuse exhibit shown on plan sheet C5.5.
North: Commercial Development (Lowe's)
East: Residential (Danbury Estates)
South: Undeveloped (Cool Creek)
West: Commercial (Clay Terrace and US 431)
1.18 Estimate of Total Construction Site Area and P isturbed Area:
The Project site is approximately 8.1 acres of which 8.1 on -site acres and 0.40 off -site acres will be disturbed by
construction activities. Refer to plan sheet C5.1 for the Construction Limits.
1.19 Identification of existing vegetative cover:
Mass earthwork activities in preparation for this project were included as part of a previous plan prepared for the Lowe's
site as completed in the year 2000. The site currently contains grassy cover. No significant brush or tree cover exists.
1.20 Soils:
The appropriate soils map information has been transferred from USDA soil maps or information provided on Hamilton
County mapping on to the site as shown on Sheet C5.1. In addition, a copy of the USDA soils map has been placed on
So'I t •es and descriptions are noted below.
Sh
t
1.21 Location, size, and dimensions of proposed stormwater systems:
Refer to the grading and utility plans (Sheets C3.1 C4.1) for information regarding locations, size, and dimensions
of pr •sed stormwater systems.
1.22 Plans for off -site construction activities associated with this project:
There is incidental grading being completed in the Hamilton County Highway Department right -of -way. This work has
been reviewed by their office. Please note the construction of off -site detention with the Danbury Estates Subdivision
is being coordinated as part of the Cool Creek Commons project being developed by Kite Development as designed by
EMH &T. The erosion and sediment control plans for this off -site facility has been approved by the local SWCD.
a
b
c
d
1.23 Locations of proposed soil stockpiles and /or borrow /disposal areas:
No soil stockpiles, borrow areas, or disposal areas are proposed for this site.
1.24 Existing site topography
Refer to Sheet C1.1 for the existing site topography.
1.25 Proposed final topography:
The proposed final topography is shown on Sheet C3.1.
2.0 CONSTRUCTION
2.1 Description of potential pollutant sources associated with the construction activities:
The following potential pollutant sources may be associated with construction activities on site:
a Material storage areas (more specifically described in Section 2.2)
b Fuel storage areas and fueling stations
c Exposed soils, wind blown dust and soil tracking off -site
d Leaking vehicles and equipment repair
e Construction waste material and litter
f) Sanitary waste from temporary toilet facility
g) Concrete washout
h) Paints, solvents and cleaning supplies
i) dewatering /pumping
2.2 Construction and waste materials to be stored on -site:
The following construction materials will be staged or stored on site at various points during development of the site:
a structural fill
b road base
c plastic drainage pipe
d PVC watermain pipe and appurtenances
e concrete drainage pipe
f) concrete culverts
g precast concrete manholes
h) rock rip -rap
2.3 Sequence of stormwater quality measure implementation relative to land disturbing activites:
a) Stake mitigated wetland area located along the western boudary
b) Install material storage /staging area and fueling stations
c Install construction entrances and silt fence as indicated on the plan
d Construct diversion swales, sediment basins and spillways
e Demolish existing concrete curbing and asphalt as indicated on demolition plan
f) Begin trenching for storm sewers, sanitary sewers, water lines, and other utilities
g) install inlet baskets immediately after installation of storm drainage structures
h) Begin earth moving activities to establish proposed sub -grade elevations
1) Continue site excavating, backfilling, and grading activities
j) Establish building pad
k) Begin building construction
I) Temporary seed disturbed areas if to be undisturbed for more that 15 days
m) Remove sediment traps and immediately stone parking lots or temporary seed
n) Complete concrete /asphalt paving
2.4 Measures and Controls:
It is the intent that erosion and sediment controls should be designed to retain sediment and other pollutants on
site to the extent practicable.
All control measures must be properly selected, installed, and maintained in accordance with the manufacturer's
specifications and good engineering practices. If periodic inspections or other information indicates a control has been
used inappropriately, or incorrectly, the permittee must replace or modify the control for site situations.
If sediment escapes the construction site, off -site accumulations of sediment must be removed at a frequency
sufficient to minimize off -site impacts (e.g., fugitive sediment in street could be washed into storm sewers by the
next rain and /or pose a safety hazard to users of public streets).
Sediment must be removed from sediment traps of sedimentation ponds when design capacity has been reduced
by 50%
Controls must be inspected a minimum of once a week, or after every rain event exceeding 0.5 inch. The local Soil and
Water Conservation District requires weekly inspection records be kept on site and may request to review these
documents. It is recommended that an individual trained in the use of erosion control measures conduct these
inspections.
2.4.1 Erosion and Sediment Controls:
Erosion and sediment control practices can be divided into three broad categories: (1) soil stabilization, (2) structural
controls, and (3) management practices. Each of these categories has temporary and permanent control measures to
be considered. Soil stabilization and structural practices should be selected and designed in accordance with The
Indiana Handbook for Erosion Control in Developing Areas" as published by the Division of Soil Conservation of the
Indiana Department of Natural Resources. Not all of the structural controls discussed in the Handbook will necessarily
apply to this project. Management practices are construction management techniques which, if properly utilized, can
minimize the need for physical controls and possibly reduce costs.
2.4.1.1 Soil Stabilization:
Where land disturbance is necessary, the following methods of soil stabilization will include the following:
a
b
c
d
0 2 percent slopes
Crosby Silt Loam. to D D es
Crosby soils consist of deep, somewhat poorly drained, slowly permeable soils on glacial till plains. These soils formed in less than
20 inches of loess and in the underlying, loamy glacial till. Slopes range from 0 to 3 percent. This soil type has some limitations
relative to site development projects. The site needs to be artificially drained to prevent wetness from being a problem. The main soil
features that adversely affect the engineering uses of this soil are a seasonal high water table, moderate shrink -swell potential,
high potential frost action and slow permeability. Underdrains will be provided at the storm inlet structures to control concerns
relative to wetness and to lower the water table locally. Additionally, the foundations of the building will be designed by the structural
engineer to accommodate the actual bearing capacity of the soil. The onsite soil will be treated as recommended by the geotechnical
engineer if the conditions are unsuitable for a pavement system. Remedial treatments may include, but are not limited to, removal
of unsuitable soil and backfilling with engineered material, installation of a geofabric or geogrid within or under the pavement system,
ortreatment of the subgrade with lime.
MmB2 and MmC2 Miami Silt Loam. 2 to 6 percent slopes
Miami soils consist of deep, well drained soils on till plains. Permeability is moderate in the subsoil and moderately slow in the
underlying material. These soils formed in 8 to 20 inches of loess and in the underlyting glacial till. Slopes range from 0 to 18 percent.
This soil is suitable for site development projects, but slope, clayey tecture, shrinking and swelling, and low strength are modereate
limitations to be overcome. The main soil features that adversely affect engineering uses of this soil are moderately slow permeability,
y,
moderate potential frost action, moderate shrink -swell potential and low strenght. Erosion is a hazard during construction. Diversion
swales, sediment basins, silt fence etc. will be utilized to control erosion during construction. Building foundations will be designed
to accommodate the actual bearing capacity of the soil. The onsite soil will be treated as recommended by the geotechnical
engineer if the conditions are unsuitable for a pavement system. Remedial treatments may include, but are not limited to, removal
of unsuitable soil and backfilling with engineered material, installation of a geofabric or geogrid within or under the pavement system,
ortreatment of the subgrade with lime.
Sh Shoals Silt Loam. 0 to 2 percent slopes
The shoal series consists of deep, somewhat poorly drained, moderately permeable soils on flood plains. These soils formed in neutral
or mildly akaline, loamy alluvium. Slopes range from 0 to 2 percent.
This soil has extensive limitations relative to site development projects. The main soil features that adversely affect engineering uses of
this soil are a seasonal high water table and high potential frost action. This soil is also subject to frequent flooding. Building foundations
will be designed to accommodate the actual bearing capacity of the soil. Additionally, underdrains will be provided at each drainage structure
to facilitate draining of the sub grade. The onsite soil will be treated as recommended by the geotechnical engineer if the conditions are
unsuitable for a pavement system. Remedial treatments may include, but are not limited to, removal of unsuitable soil and backfilling
with engineered material, installation of a geofabric or geogrid within or under the pavement system, or treatment of the subgrade with lime.
Diversion swales, sediment basins, silt fence and other protection devices will be utilized to control erosion during construction.
Sx Sloan Silty Clay Loam. Sandy Substratum. 0 to 2 percent slopes
The sloan series consists of deep, very poorly drained, moderately permeable soils on flood plains. These soils formed in neutral
or mildly akaline, loamy alluvium. Slopes range from 0 to 2 percent.
This soil has extensive limitations relative to site development projects. The main soil features that adversely affect engineering uses of
this soil are a seasonal high water table and high potential frost action. This soil is also subject to frequent flooding. Building foundations
will be designed to accommodate the actual bearing capacity of the soil. Additionally, underdrains will be provided at each drainage structure
to facilitate draining of the sub grade. The onsite soil will be treated as recommended by the geotechnical engineer if the conditions are
unsuitable for a pavement system. Remedial treatments may include, but are not limited to, removal of unsuitable soil and backfilling
with engineered material, installation of a geofabric or geogrid within or under the pavement system, or treatment of the subgrade with lime.
Diversion swales, sediment basins, silt fence and other protection devices will be utilized to control erosion during construction.
Structural Fill
Mass earthwork occurred on this site in 2001. Cut material from the construction activity associated with the Lowe's detention ponds was
re- distributed on the current Greyhound Commons site. In some areas, approximately 8 feet of fill was placed. Therefore, many of the
enclosed soil maps may no longer be accurate; however, the characteristics of the re- distributed material should not be expected to be
very different than the soil types discussed above. A geothechnical engineer was located on -site during the earth moving process to
ensure material was placed in appropriate lifts and within acceptable compaction tolerances. Building foundations will be designed
to accommodate the actual bearing capacity of the soil. Additionally, underdrains will be provided at each drainage structure to
facilitate draining of the sub grade. The onsite soil will be treated as recommended by the geotechnical engineer if the conditions are
unsuitable for a pavement system. Remedial treatments may include, but are not limited to, removal of unsuitable soil and backfilling
with engineered material, installation of a geofabric or geogrid within or under the pavement system, or treatment of the subgrade with
lime. Diversion swales, sediment basins, silt fence and other protection devices will be utilized to control erosion during construction.
temporary seeding
permanent seeding
mulching
geotextiles /erosion control matting
Design specifications and details for soil stabilization are provided in the Construction Plan Set.
The USEPA NPDES Storm Water General Permit requires all disturbed ground that will remain dormant for longer than
15 days to be seeded with temporary seed and /or protected with mulch. Erosion and sediment control plans must
contain provisions for permanent stabilization of disturbed areas. Permanent stabilization must initiate within 14 days
after construction activity has ceased.
Permanent vegetation will include native grasses, shrubs, and trees.
2.4.1.2 Structural Controls:
Erosion and sediment controls should be selected, designed and constructed according to the standards in the
Handbook and construction drawings. Listed below are the structural controls to be used at the Project site and a copy
of construction specifications and details for these controls are provided in the construction plan set.
a Inlet protection
b Diversion swale
c Silt fence
d Stabilized construction entrance
e Sediment trap and outlet spillway
f) Sediment basin /sediment trap
2.4.1.3 Management Practices:
The following are some management considerations that should be employed in conjunction with the erosion and
sediment controls described above:
Sequence construction so that no area remains exposed for unnecessarily long periods of time.
Anticipate
the site conditions that will exist as the construction progresses toward the final product.
Hove the materials on hand to complete the work without delay.
Apply temporary stabilization immediately after grading.
e) Stage the construction, if possible, so that one area can be stabilized before another is disturbed.
0 Consider the time of year; be prepared for sudden thunderstorms.
g) Install erosion and sediment controls immediately.
ht) Use straw mulch for grass seed, especially during poor germination periods.
areas
i) Physically mark off limits of disturbance on the site with tape, signs, or other methods so that workers can see
to be protected.
j) Carry out a regular maintenance schedule for erosion and sediment control practices.
k) Designate one individual responsible for implementing the erosion and sediment control plan. Make sure that all
workers understand the provisions of the erosion and sediment control plan. Establish reporting procedures for
problems identified by workers.
2.4.2 Other Controls:
This section refers to additional controls related to construction activity at the Project. Additional specifications and
details for these controls are provided in the construction drawings.
2.4.2.1 Solid Waste Disposal:
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.
A foreman or supervisor should be designated in writing to oversee, enforce, and instruct construction workers on
proper solid waste procedures.
2.4.2.2 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 contaminant 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.
2.4.2.3 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 a rock pad or equivalent device. The
purpose of the rock pad is to minimize the amount of soil and mud that is tracked onto existing streets. If sediment
escapes the construction site, off -site accumulations of sediment must be removed at a frequency sufficient to minimize
off -site impacts.
2.4.2.4 Sanitary /Septic:
Contractors and subcontractors must comply with all state and local sanitary sewer, portable toilet, or septic system
regulations. Sanitary facilities shall be provided at the site by each contractor or subcontractor throughout construction
activities. The sanitary facilities should be utilized by all construction personnel and be serviced regularly. All expenses
associated with providing sanitary facilities are the responsibility of the contractors and subcontractors. The location of
any sanitary facilities should be indicated on the stormwater pollution prevention plan by the operator following on -site
location of said facilities.
2.4.2.5 Water Source:
Water used to establish and maintain grass, to control dust, and for other construction purposes must originate from a
public water supply or private well approved by the State or local health department.
2.4.2.6 Equipment Fueling, Material Storage and Concrete Washout Areas:
During construction, the contractor and subcontractors should employ the following practices:
a) Equipment fueling, maintenance, and cleaning should only be done in protected areas (i.e., bermed area). Leaking
equipment and maintenance fluids will be collected and not allowed to discharge onto soil where they may be washed
away during a rain event.
b) Equipment wash down (including concrete trucks) should take place within an area surrounded by a berm. The use
of detergents is prohibited.
2.4.2.7 Storage of Hazardous Material, Paint, Solvents and Cleaning Supplies:
Chemicals, paints, solvents, fertilizers, and other toxic or hazardous materials should be stored in their original
containers (if original container is not resealable, store the products in clearly labeled, waterproof containers). Except
during application, the containers should be kept in trucks or in bermed areas within covered storage facilities. Runoff
containing such materials shall be collected, removed from the site, and disposed of in accordance with the federal,
state, and local regulations.
As may be required by federal, state, or local regulations, the Contractor should have a Hazardous Materials
Management Plan and /or Hazardous Materials Spill and Prevention Program in place. A foreman or supervisor should
be designated in writing to oversee, enforce, and instruct construction workers on proper hazardous materials storage
and handling procedures. The location of any hazardous material storage areas should be indicated on the stormwater
pollution prevention plan by the operator following on -site location of the storage areas.
3.0 INSPECTION AND MAINTENANCE
The following items are to be integrated into the inspection and maintenance program:
3.1 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. Where sites have been final or temporarily stabilized or
on sites where runoff is unlikely due to winter conditions (e.g. site is covered with snow, ice, or frozen ground exists),
such inspections shall be conducted at least once every month.
Inspections shall be conducted, and a written report prepared, by a designated and qualified person familiar with the
USEPA NPDES Storm Water General Permit, this SWPPP, and the Project.
Inspection reports shall be completed including scope of the inspection, nome(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 Soil and Water Conservation Distict.
3.2 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 as described in this
SWpPP.
3.3 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 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.
3.4 Soil Stabilization Inspections:
Seeded areas will be inspected to confirm that a healthy stand of vegetation is maintained. The site has achieved final
stebilization once all areas are covered with pavement or have 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.
3.5 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 practices that will be used for specific
controls:
a Geotextiles /Erosion Control Mats: Missing or loose matting must be replaced or re- anchored.
b Inlet Protection:
Sediment should one-half d be removed when height it reaches approximately one half the hei ht of the
PP Y
fence. if a sump is used, sediment should be removed when the volume of the basin is reduced by 50%.
c)Diversion Swales: Clean debris or other obstructions as needed. Damage from st. ms or normal
construction activities (i.e., tire ruts) shall be repaired immediately.
d)Mulching: Inspect 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.
e)Sediment Trap; Accumulated silt shall be removed and the basin shall be regraded to its original
dimensions at such point that the capacity of the impoundment has been reduced to one -half of its original
storage capacity. The removed sediment shall be stockpiled or redistributed in areas which are protected
from erosion.
f)Sediment Basin; Inspect frequently to check for damage and to ensure obstructions are not diminishing
the effectiveness of the structures. Sediment shall be removed and the basin shall be regraded to its original
dimensions at such point that the capacity of the impoundment has been reduced to 20% of its original
storage capacity. The removed sediment shall be stockpiled or redistributed in areas which are protected
from erosion.
g)Silt Fence: Removal of built -up sediment will occur when the sediment reaches one -third the height of the
fence.
h)Stabilized Construction Entrance; Periodic regrading and top dressing with additional stones.
i)Straw Bales; Replace straw bales that show signs of deterioration.
j)Vegetation; Protect newly seeded areas from excessive runoff and traffic until vegetation is established.
Establish a watering and fertilizing schedule.
k)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 off-site traction 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.
3.6 Modifications /Revisions to SWPPP:
Based on inspection results, any necessary modification to this SWPPP shall be implemented within seven
(7) calendar days of the inspection. A modification is necessary if a control measure or operational
procedure does not provide adequate pollutant control. All revisions shall be recorded on a Record of
Revisions within 7 calendar days of the inspection.
It is the responsibility of the operator to maintain effective pollutant discharge controls. Physical site
conditions or contractor /subcontractor practices could make it necessary to install more controls than were
originally planned. For example, localized concentrations of surface runoff or unusually steep areas could
require additional silt barrier or other structural controls. Assessing the need for and installing additional
controls will be a continuing contractor /subcontractor responsibility until final stabilization is achieved.
Contractors and subcontractors implementing this SWPPP must remain alert to the need to periodically
refine and update this SWPPP in order to accomplish the intended goals.
3.7 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 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 Soil and Water Conservation
District. The SWPPP must be revised within 14 calendar days after the release to reflect the release, stating
the information above along with modifications to minimize the possibility of future occurrences. Each
contractor and subcontractor is responsible for complying with these reporting requirements.
Spills of flammable material resulting in a dangerous situation should be reported immediately to the City
of Carmel Fire Department by calling 911 and requesting assistance. Spills resulting in potential
contamination of surface water or groundwater shall be reported to the Indiana Department of Environmental
Management, Environmental Emergency hotline at (888) 233 -7745. Spills of a smaller nature should be
reported to the Site Superintendent and Owner. Contaminated dewatering fluids shall be temporarily stored
on -site until a hauler pump truck is brought to the site. Contaminated soil material shall be segregated,
stockpiled on an impermeable surface on -site and covered with plastic to prevent runoff while further
sampling and appropriate disposition is coordinated. Final disposition of contaminated dewatering fluids
and /or soil material shall be properly documented.
3.8 Notice of Termination:
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:
a) Final stabilization has been achieved on all portions of the site for which the permittee was responsible.
b) Another operator /permittee has assumed control over all areas of the site that have not been finally
stabilized.
c) In residential construction operations, temporary stabilization has been completed and the residence has
been transferred to the homeowner.
4.0 POST CONSTRUCTION
4.1 Description of potential pollutant sources associated with the proposed land use:
The following potential pollutant sources may be associated with the proposed land use:
a) Trash and litter from established restaurant facilities
b) Vehicular pollutants including:
i. Oil
ii. Grease
iii. Antifreeze
iv. Brake fluid
v. Gasoline
4.2 Sequence describing stormwater quality measure implementation:
of Rot this time, contractor and developer awareness will be the main stormwater quality measure proposed;
therefore, no particular sequence is being proposed.
4.3 Description of proposed post construction quality measures:
No specific structural best management practices have been proposed as part of this SWPPP.
For Greyhound Commons, all on -site impervious areas will be routed through a minimum of two detention
in
This will aid in the settling (in-series). Thi ng of suspended solids and will assist in the recovery of accidental
spills.
4.4 Location, dimensions, specifications, and construction details of each stormwater quality measure:
No specific structural Best Management practices have been proposed as part of this SWPPP, therefore no
construction details or specifications have been provided. However, the existing detention ponds will provide
a significant amount of detention time and result in some suspended solids settling out from the stormwater.
Stormwoter quality measures that may be incorporated into the site include implementation of regular
site inspections, street cleaning and other good housekeeping measures, and proper maintenance of the
landscaped areas to ensure good vegetative cover.
4.5 Description of maintenance guidelines for proposed post construction water quality measures:
No specific structural best management practices have been proposed as part of this SWPPP; therefore, no
maintenance requirements for post construction stormwater quality measures has been included.
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CHK'D BY:
JOB NO.
12/05/03
WJT
KMB
IN2003.0744
REVISIONS
1 TAC 02/17/04
/o\ GENERAL
05/26/04
IN2003.0744.073.C54