HomeMy WebLinkAbout25 C804A Stormwater Pollution Prevention DetailsNo.
PROBLEM or CONCERN
YES
NO
N/A
1.
Is the site information posted at the entrance?
0
2.
Are all necessary permits attained and special provisions being implemented?
3.
Is a construction entrance installed? Is it effective? Is it enough
4.
Public and private streets are clean?
5.
Are appropriate practices installed where stormwater leaves the site?
6.
Silt fence is entrenched into the ground?
7.
Silt fence is upright? Fabric and stakes meet specifications? Fabric is not to torn?
Terminated to higher ground? Property joined at ends?
8.
Sediment basins and traps are installed according to the plan? The pipe or rock spillway is functional?
9.
The earthwork for erosion and sediment control practices is properly graded, seeded and /or mulched?
10.
Diversions swales and /or waterbars are installed to plan and protected?
11.
Perimeter practices have adequate capacity and do not need to be cleaned out?
12.
Inlet protection is installed on all functional inlets? (not filter fabric under grate)
13.
Inlet protection is installed so water does not flow under it?
14.
The frame, cross- bracing and /or stakes are adequate and meet specifications?
15.
The fabric, straw, mulch and /or stone is intact without holes or tears?
16.
Catch basin insert protection is installed where required?
17.
Sediment has been removed from the practice?
18.
Swales and ditches have been stabilized or protected?
19.
Stormwater outlets are adequately stabilized?
20.
Temporary stabilization of distributed ground has been addressed?
21.
Disturbed areas that will lie dormant for 15 days are planned to be protected?
22.
All protected dormant areas meet a minimum 70% coverage
Growing vegetation has sufficient water and /or nutrients to grow?
23.
24.
Permanent stabilization of disturbed ground is progressing through the project?
25.
Final grading and stabilization is progressing on completed areas?
26.
The soil has been properly prepared for seeding?
27.
Hard or soft armoring is installed where natural vegetation will erode?
28.
Water pumping operations have a protected outlet and discharge water is clear?
29.
A designated washout is established for concrete trucks?
30.
A dumpster is onsite for trash disposal?
31.
Fuel tanks and other toxic materials are safely stored and protected?
32.
Smaller construction sites not required to file a separate NOI are complying with the overall plan?
33.
34.
DATE:
PROJECT NO.:
1299.004
I I
The Lakes at Hamilton Place
Section lB
CARMEL, INDIANA
DURA BUILDERS, INC.
CARMEL, INDIANA
DATE:
PROJECT NO.:
1299.004
DRAWN BY:
CKK
CHECKED BY:
SHEET TITLE:
STORMWATER POLLUTION
PREVENTION DETAILS
DRAWING FILES:
P: \1299 \004 \dwgs \SEC 1 B \c804a
SHEET NO.:
�a CO
L1
0
STORMWATER POLLUTION PREVENTION PLAN INDEX
Al Plan Index provided below
A2 15 "x17" Plat denoting boundaries and streets is provided separately.
A3 Project Type: residential single family subdivision
A4 Vicinity Map: Denoted on Sheet C100.
A5 Legal Description of Project Site: See attached secondary plat.
A6 Location of all lots and proposed site improvements: See Site Development Plan Sheets C101-
C103 for more information.
A7 14 Digit Hydrologic Unit Code: 05120201120070
A8 State or Federal water quality permits: None
A9 Specific points where stormwater discharge will leave the site: East of Pond 2 to Long Branch
Creek see Site Development Plan Sheet C104 Section 1A for more detail.
A10 Location of all wetlands, lakes water courses on and adjacent to site: Long Branch Creek.
Al" Receiving Waters: Long Branch Creek
AA2 Identification of potential discharges to groundwater: none.
A13 100 Year Floodplains, Floodways and Flood Fringes: none.
Al4 Pre Construction and Post Construction Peak Discharge:
l0year Pre Construction Peak Discharge (Total)= 98.48 CFS
100year Post Construction Peak Discharge (Total)= 42.65 CFS
A15 Adjacent Land Use (See Existing site topography sheet C107 for more information):
North: Residential
South: Residential
East: Residential
West: Residential
A16 Locations and approximate boundaries of all disturbed areas: See construction Plan Sheets
C104 -C106 for locations.
A1; Identification of existing vegetative cover: See existing site topography Sheet C107 for more
information.
A18 Soils Map including descriptions and limitations: See sheet C101 for soils map, description
and limitations.
Al Locations, size and dimensions of proposed stormwater systems: See Site Development Plan
Sheets C101 -C103 for proposed storm sewer system.
A?D Locations, size and dimensions of any proposed off -site construction activities
associated with this project: None.
A21 Locations of Soil Stockpiles: Stockpile areas shall be located as far away from
ponds, existing storm sewer inlets and existing swales as possible. No stockpiles are
planned for this site.
A22 Existing site topography See sheet C107 for existing site topography.
A3 Proposed final topography. Site Development Plan Sheets C101 -C103 for proposed site
grading and drainage patterns.
Description of potential pollutants sources associated with the construction activities:
Silt and sediment from exposed soils, leaves, mulch, vehicular sources such as
leaking fuel or oil, brake fluid, broke dust, trash, debris, biological agents found in
trash, fertilizers, herbicides, pesticides, acid rain, lime dust and concrete washout.
9 2 Sequencing of stormwater quality implementation relative to land disturbance
activities: This plan has been created in an effort to eliminate sediment from
leaving the project during construction, protecting the adjoining properties and the
receiving waters. The site drains into a 12" RCP to the East of Pond 2 to Long Branch Creek.
B1
B3
B4
n.5
B6
B/
B8
i39
1311
s12
PRECONSTRUC11ON ACTIVITIES:
1. Call the Indiana Underground Plant Protection systems, Inc. "Holey Moley") at
1 -800- 382 -5544 to check the location of any existing utilities. They should be notified
two working days before construction takes place.
2. A silt fence shall be installed at the edges of the project site where there is potential
for any stormwater runoff. Potential areas are identified based on existing topography
around the perimeters of site.
3. Evaluate, mark and protect important trees and associated root zones. Evaluate
existing vegetation suitable for use as filter strips along the North, South, East and
West boundaries.
4. A construction entrance shall be placed per the plan location.
5. Establish construction staging area for equipment and vehicles as far from detention
ponds and swales as possible.
6. Establish onsite location for owner /operator /contractor placement of approved plans
and Rule 5 NOI and Rule 5 inspection documentation.
ESTABLISH SILT BASIN:
1. Install the primary outfall storm sewer system.
2. After completion of the outfall pipe, commence construction of the temporary sumps
and inlet protection.
CONSTRUCTION ACTIVITIES:
1. Once erosion and sediment control measures are in place, begin land clearing followed
immediately by rough grading. Do not leave large areas unprotected for more than 15
days. Rule 5 requires that all disturbed areas that potentially will be idle for 15 days or
more will be stabilized (seeded, mulched, etc..) immediately.
2. After completion of mass grading, final grade and seed pond banks, greenspace and
swales immediately after grading is completed.
3. Upon completion of mass grading, install sanitary laterals and storm sewers. As storm
sewers are constructed, install inlet protection measures.
4. Upon completion of sewer installation and inlet protection, proceed with pavement
construction.
5. Once pavement and curbs are in place, install curb inlet sediment barriers.
6. Once inlet protection is in place, final grade all areas. Upon completion of all grading,
verify depth of pond per plan requirement, dredge as needed.
Stable construction entrance location(s) and specifications. See Erosion Control
Plan Sheet C104 for location(s) and Sheets C804 for construction
entrance details and specifications.
Sediment control measures for sheet flow areas: See Stormwater Pollution Prevention
Plan Sheets C104 -C106 for locations of sediment control measures and Sheet C804
for construction details and specifications.
Sediment control measures for concentrated flow areas: See Stormwoter Pollution
Prevention Plan Sheets C104 -C106 for locations of sediment control measures and Sheet
C804 for construction details and specifications.
Storm sewer inlet protection measures, locations and specifications: See Stormwater Pollution
Prevention Plan Sheets C104 -C106 for locations of inlet protection measures and Sheet C804
for construction details and specifications.
Runoff control measures: See Stormwater Pollution Prevention Plan Sheet C104 -C106 for
locations of runoff control measures and Sheet C804 for construction details
and specifications.
Stormwater outlet protection specifications: See Stormwater Pollution Prevention Plan
Sheet C104 -C106 for locations of stormwater outlet control measures and Sheet C804
construction details and specifications.
Grade stabilization structure locations and specifications: See Stormwater Pollution Prevention
Plan Sheet C104 -C106 for locations of grade stabilization control measures and Sheet C804
for construction details and specifications.
Location, dimensions, specifications and construction details of each stormwater quality
measure: See Stormwater Pollution Prevention Plan Sheet C104 -C106 for locations of various
stormwater quality measures and Sheet C804 for construction details and specifications.
Temporary surface stabilization methods appropriate for each season: See Stormwater
Pollution Prevention Plan Sheets C104 -C106 for locations of temporary surface stabilization
measures and Sheet C804 for construction details and specifications.
Permanent surface stabilization specifications: See Stormwater Pollution Prevention Plan Sheet
C104 -C106 for locations of permanent surface stabilization measures and Sheet C804 for
construction details and specifications.
R1.5 Material handling and spill prevention plan:
Purpose:
The intention of this Spill Prevention, Control and Countermeasures (SPCC) is to
establish the procedures and equipment required to prevent the discharge of oil
and hazardous substances in quantities that violate applicable water quality
standards, cause a sheen upon or discoloration of the surface of navigable waters
or adjoining shorelines, or cause sludge or emulsion to be deposited beneath the
surface of the water or adjoining shorelines. The Plan also establishes the activities
required to mitigate such discharges (i.e., countermeasures) should they occur.
Definitions:
Pollutant: means pollutant of any kind or in any form, including but not limited
to sediment, paint, cleaning agents, concrete washout, pesticides, nutrients, trash,
hydraulic fluids, fuel, oil, petroleum, fuel oil, sludge, oil refuse, and oil mixed
with wastes other than dredged soil.
Discharge:
Includes but is not limited to, any spilling, leaking, pumping, pouring, emitting,
emptying, or dumping.
Navigable Waters:
Means all waters of the United States that are connected with a navigable stream,
lake, or sea. [Note: This definition is usually interpreted to mean any
wastewater (even normally dry wash or storm sewer) that eventually drains into a
navigable stream].
Plan Review and Amendments:
This Plan shall be reviewed and /or amended, if necessary, whenever there is a
change in the design of the site, construction, operation, or maintenance which
materially affects the site's potential for the discharge of regulated material.
Prediction of Potential Spills:
1. Nearest Navigable Water: Long Branch Creek
2. Drainage System: The stormwater runoff for the developed site enters the detention
pond via underground storm pipes. Then discharges from the pond into a storm
system which discharges into a 12" RCP east of Pond 2 to Long Branch Creek..
3. Possible Spill Sources (during and post construction): Vehicular sources such as
leaking fuel or oil, brake fluid, grease, antifreeze; construction trash and debris,
biological agents found in trash and debris, fertilizers, household items including
but not limited to cleaning agents, chemicals, paint, herbicides and pesticides.
4. Groundwater Contamination: This facility maintains no above ground or under ground
storage tanks. Therefore, it is felt that there is little or no possibility of post
construction groundwater contamination. The facility does have city water and sanitary
sewer services.
Alert Procedures for Spills:
1. Any personnel observing a spill will immediately instigate the following
procedure:
a.) Dialing "0" from any telephone.
b.) Notify the appropriate emergency personnel.
2. The Emergency Coordinator will then take the following actions:
a.) Barricade the area allowing no vehicles to enter or leave the
spill zone.
b.) Notify the Indiana Department of Environmental Management,
Office of Emergency Response by calling the appropriate
telephone number:
Office 317 233 -7745
Toll Free 800- 233 -7745
Also the National Response Center at 800- 424 -8802
and provide the following information:
Time of observation of the spill
Location of the spill
Identity of material spilled
Probable source of the spill
Probable time of the spill
Volume of the spill and duration
Present and anticipated movement of the spill
Weather conditions
Personnel at the scene
Action initiated by personnel
c.) Notify the Carmel Fire Department Phone: 9 -1 -1
d.) Notify the Carmel Police Department Phone: 9 -1 -1
e.) Notify waste recovery contractor, maintenance personnel or other
contractual personnel as necessary for cleanup.
f.) Coordinate and monitor cleanup until the situation has been
stabilized and all spills have been eliminated.
g.) Cooperate with the IDEM -OER on procedures and reports involved
with the event.
Cleanup Parameters:
1. The owner shall be continually kept informed, maintain lists of qualified contractors and
available Vac trucks, tank pumpers and other equipment readily accessible for clean
up operations. In addition, a continually updated list of available absorbent materials
and clean -up supplies should be kept on site.
2. 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 ins ,rmation on the prevention
of spills and or necessary alterations to this plan.
3. When spills occur which could endanger human life and this becomes primary concern,
the discharge of the life saving protection function will be carried out by the local
police and fire departments.
4. 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.
5. Flushing of spilled material with water will not be permitted unless so authorized by the
Indiana Department of Environmental Management.
B14 Monitoring and maintenance guidelines for pollution prevention measures:
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 it's lowest
point or is causing the fabric to bulge.
4. Take care to avoid undermining the fence during cleanout.
5. After the contributing drainage area has been stabilized, remove the fence and sediment
deposits, bring the disturbed area to grade and stabilize it.
Temporary Sediment Trap Maintenance Requirements
1. Inspect temporary sediment traps after each storm event and immediately repair any
erosion and piping holes.
2. Remove sediment when it has accumulated to one -half the design depth.
3. Replace spillway gravel facing when clogged.
4. Inspect vegetation and re -seed if necessary.
5. Check the spillway depth periodically to insure a minimum of 1.5 ft depth from the
lowest point of the settled embankment to highest point of the spillway crest and fill
any low areas to maintain desired elevation.
6. Promptly replace any displaced rip -rap, being careful that no stones in the spillway are
above design grade.
7. After all disturbed areas have been stabilized, remove the structure and sediment,
smooth the site to blend with adjoining areas and stabilize it.
Block and Gravel Curb Inlet Protection Maintenance Requirements
1. After each storm event remove the sediment and replace the gravel, replace the
geotextile fabric if used.
2. Periodically remove sediment and tracked -on soil from the street, without flushing, to
reduce the sediment load on the curb inlet protection.
3. Inspect periodically for damage and repair. Keep grates free of debris.
4. After the contributing drainage area has been stabilized, remove the gravel, wire mesh,
geotextile fabric and sediment deposits and dispose of them properly.
Erosion Control Blanket (Surface Applied) Maintenance Requirements
1. During vegetative establishment, inspect after each storm event for any erosion below
the blarket.
2. If any area(s) shows erosion, pull back that portion of the blanket covering it, re -seed
the area and relay and staple the blanket.
3. After vegetative establishment check the treated area periodically.
Temporary Gravel Construction Entrance Maintenance Requirements
1. Inspect entrance pad and sediment disposal area weekly and after storm events or
heavy use.
2. Reshape as needed for drainage and runoff control.
3. Topdress with clean stone as needed.
4. Immediately remove mud and sediment tracked or washed onto streets 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.
X15 Erosion sediment control specifications for individual building lots: Not applicable.
C1 Description of pollutants and their sources associated with the proposed land use: Silt and
sediment from exposed soils, leaves, mulch, vehicular sources such as leaking fuel or oil,
brake fluid, brake dust, grease, antifreeze, metals, rubber fragments, road grit, salts and
sands, construction trash and debris, fertilizers, household items including but not limited
to cleaning agents, chemicals, paint, miscellaneous home improvement materials, toys,
clothing and animal waste, elevated storm runoff temperatures, acid rain pesticides and
pathogens.
Sequence describing stormwater quality measure implementation:
The sumps, snouts sediment basins within the pond are for post construction sediment
prevention. They all should be implemented during construction for safety and construction
reasons. Wetland plantings should be installed once the normal pool has been established
and during the proper planting season.
C3 Description of proposed post construction stormwater quality measures: Site and facility
design for stormwater quality protection on this site employs a multi -level strategy
consisting of:
1. Reducing of eliminating post project runoff.
2. Controlling source pollutants.
3. And if needed, treating contaminated storm water runoff before discharging it into the
storm sewer system or receiving waters.
Specific stormwater quality measures for reducing, eliminating or controlling pollutants
(source controls) include:
a. Storm sewer sump with snout
b. Permanent erosion control seeding and plantings
c. Outlet protection and velocity dissipation devices including rip -rap
C
It is the intent of this plan that the implementation of the above described stormwater
quality measures be executed in accordance with the enclosed plans and details in order
to meet the requirements of Rule 5 storm water quality.
C4 Location, dimensions, specifications and construction details of stormwater quality measures:
See Stormwater Pollution Prevention Plan, sheet C104 -C106, for locations of permanent
stormwater quality measures and sheet C804 for construction details and specifications.
C5 Description of maintenance guidelines for proposed water quality measures:
See sheet C804
Paved areas should be swept on a regular basis
Inspect storm manholes with sumps and snouts. Remove any floating debris on a regular
basis and have sumps professionally cleaned once a year. *caution should be noted All
sumps are deep and potentially dangerous. Extreme care and safety measures along with
OSHA guidelines should be followed.
Inspect the pond within 24 hours of every 1" rain event. Remove all
floating debris.
This sequence is subject to revisions based on the developer's standard operating procedures
or weather conditions which may necessitate measures that are not scheduled.
ADDITIONAL STORMWATER POLLUTION PREVENTION MEASURES
VEHICLE EQUIPMENT MAINTENANCE
Description and Purpose
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 riot 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.
Suitable Applications
These procedures are suitable on all construction projects where on onsite yard area is
necessary for storage and maintenance of heavy equipment and vehicles.
Limitations
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 be done in conjunction with a Stabilized Construction Entrance /Exit. Outdoor
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).
Implementation
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 watercourses.
Drip pans or absorbent pads should be used during vehicle and equipment maintenance
work that involves fluids, unless the maintenance work is performed over an
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 adsorbent 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.
Keep vehicles and equipment clean; do not allow excessive build -up 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 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 be placed under all vehicles and equipment placed on
docks, barges, or 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.
Do not place used oil in a dumpster or pour into a storm drain or watercourse.
Properly dispose of or recycle used batteries.
Do not bury used tires.
Repair leaks of fluids and oil immediately.
Listed below is further information if you must perform vehicle or equipment
maintenance onsite.
Inspection and Maintenance
Keep ample supplies of spill cleanup materials onsite.
Maintain waste fluid containers in leak proof condition.
Vehicles and equipment should be inspected on each day of use. Leaks should be repaired
immediately or the problem vehicle(s) or equipment should be removed from the project site.
Inspect equipment for damaged hoses and leaky gaskets routinely. Repair or replace as
needed.
VEHICLE AND EQUIPMENT FUELING
Description and Purpose
Vehicle equipment fueling procedures and practices are designed to prevent fuel spills and
leaks, and reduce or eliminate contamination of stormwater. This can be accomplished by
using offsite facilities, fueling in designated areas only, enclosing or covering stored fuel,
implementing spill controls, and training employees and subcontractors in proper fueling
procedures.
Limitations
Onsite vehicle and equipment fueling 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. These businesses are better equipped to
handle fuel and spills properly. Performing this work offsite can also be economical by
eliminating the need for a separate fueling area at a site.
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 fueling, 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
adsorbent 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 areas.
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.
Inspection and Maintenance
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 soil and cleanup
materials.
SOLID WASTE MANAGEMENT
Description and Purpose
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.
Suitable Applications
Solid waste generated from trees and shrubs removed during land clearing, demolition of
existing structures (rubble), 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, nonhazardous equipment parts, styrofoam and other materials send
transport and package construction materials
Implementation
The following steps will help keep a clean site and reduce stormwater pollution:
Select designated waste collection areas onsite.
Inform trash hauling contractors that you will accept only watertight dumpsters for onsite
use.
Inspect dumpsters for leaks and repair any dumpster that is not watertight.
Provide an adequate number of containers with lids or covers that can be placed over the
container to keep rain out or to prevent loss of wastes when it is windy.
Plan for 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 (used oils, solvents, and paints) and chemicals (acids,
pesticides, additives, curing compounds) are not disposed of in dumpsters designated 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.
Inspect the storm manhole with snout. Remove any floating debris on a regular basis and have
sumps professionally cleaned once a year. *Caution should be noted All sumps are deep and
potentially dangerous. Extreme care and safety measures along with OSHA guidelines should
be followed.
Coliection, Storage, and Disposal
Littering on the project site should be prohibited.
To prevent clogging of the storm drainage system, litter and debris removal from drainage
grates, trash racks, and ditch lines should be a priority.
Trash receptacles should be provided in the contractor's yard, field trailer areas, and at
locations where workers congregate for lunch and break periods.
Litter from work areas within the construction limits of the project site should be collected
and laced in watertight dumpsters at least weekly, regardless of whether the litter was
generated by he contractor, the public, or others. Collected litter and debris should not be
placed in or next to drain inlets, stormwater drainage systems, or watercourses.
Dumpsters of sufficient size and number should be provided to contain the solid waste
generated by the project.
Full dumpsters should be removed from the project site and the contents should be disposed
of by the trash hauling contractor.
Construction debris and waste should be removed from the site biweekly or more frequently as
needed.
Construction material visible to the public should be stored or stacked in an orderly manner.
Stormwater runon should be prevented from contacting stored solid waste through the use of
berms, dikes, or other temporary diversion structures or through the use of measures to elevate
waste from site surfaces.
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.
nnpec :ian and Maintenance
Inspect construction waste area regularly.
Arrange for regular waste collection.
CONCRETE WASHOUT
The following steps will help reduce stormwater pollution from concrete wastes:
Incorporate requirements for concrete waste management into material supplier and
subcontractor agreements.
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 not wash out concrete trucks into storm drains, open ditches, streets, or streams.
Do not allow excess concrete to be dumped onsite, except in designated areas.
For onsite washout:
Locate washout area at least 50 feet from storm drains, open ditches,
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.
DEWATERING AND PUMPING OPERATIONS
Description and Purpose
Dewatering operations are practices that manage the discharge of pollutants when non
stormwater and accumulated precipitation must be removed from a work location so that
construction work may be accomplished.
Suitable Applications
These practices are implemented for discharges of nonstormwater from construction sites.
Non stormwaters include, but are not limited to, groundwater, water from cofferdams, water
diversions, and waters used during construction activities that must be removed from a work
area. Practices identified in this section are also appropriate for implementation when
managing the removal of accumulated precipitation(stormwater) from depressed areas at a
construction site.
Implementation
Dewatering discharges must not cause erosion at the discharge point. A variety of methods
can be used to treat water during dewatering operations. Several devices are presented
below and provide options to achieve sediment removal. The size of particles present in the
sediment and Permit or receiving water limitations on sediment are key considerations for
selecting sediment treatment option(s); in some cases, the use of multiple devices may be
appropriate.
or
Gravity Bag Filter
l?e
A gravity bag filter, also referred to as a dewatering bag, is a square or rectangular bag made of
non -woven geotextile fabric that collects sand, silt, and fines.
pp;rcpr to
Effective for the removal of sediments (grovel, sand, and silt). Some metals are removed with the
sediment.
*a
Water is pumped into one side of the bag and seeps through the bottom and sides of the bag.
A secondary barrier, such as a rock filter bed or straw /hay bale barrier, is placed beneath and beyond
the edges of the bag to capture sediments that escape the bag.
Inspection of the flow conditions, bag condition, bag capacity, and the secondary barrier is required.
Replace the bag when it no longer filters sediment or passes water at a reasonable rate.The bag is
disposed of offsite.
SIGN TO INDICATE THE
-LOCATION OF THE
CONCRETE WASHOUT AREA
12"
COMPACTED EMBANKMENT
MATERIAL TYP.
Is this Evaluation following a rainfall
BERM AROUND PERIMEILH
15'x15' MIN OR
AS REQUIRED TO CONTAIN
WASTE CONCRETE
EVALUATION FOR CONSTRUCTION PROJECTS
A trained individual shall perform a written evaluation of the project site.
a. By the end of the next business day following each rainfall that exceeds 0.5"
b. A minimum of one (1) time per week
Yes No If yes, date the rain stopped:
12" MIN
.r,
3:1 OR FLATTER
SIDE SLOPES
NOTES:
1. CONCRETE WASHOUT AREA SHALL BE INSTALLED PRIOR TO ANY CONCRETE PLACEMENT ON SITE.
2. SIGNS SHALL BE PLACED AT THE CONSTRUCTION ENTRANCE, AT THE WASHOUT AREA, AND
ELSEWHERE AS NECESSARY TO CLEARLY INDICATE THE LOCATION OF THE CONCRETE WASHOUT AREA TO
OPERATORS OF CONCRETE TRUCKS AND PUMP RIGS.
3. THE CONCRETE WASHOUT AREA SHALL BE REPAIRED AND ENLARGED OR CLEANED OUT AS
NECESSARY TO MAINTAIN CAPACITY FOR WASTED CONCRETE.
4. AT THE END OF CONSTRUCTION, ALL CONCRETE SHALL BE REMOVED FROM THE SITE AND DISPOSED
OF AT AN APPROVED WASTE SITE.
5. WHEN THE CONCRETE WASHOUT ARE IS REMOVED, THE DISTURBED AREA SHALL BE SEEDED AND
MULCHED OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE INSPECTOR.
CONCRETE WASHOUT DETAIL
Project Name
Name of Trained Individual: Date of Inspection'
GROUND SURFACE
Inches
ALL PROBLEMS OR CONCERNS NEED TO BE ADDRESSED WITH A CORRECTIVE ACTION
Identify the problem by number and /or provide additional explanation as needed.
Developer Representative contacted, name and date: Date:
Contractor Representative contacted, name and date: Date:
Report Submitted by Date:
\c K.
Q c ,\sTE/ 0*
Ei No.
9500028
./3 STATE OF Cv
0
S1 ONAL
iy lliIll1t1,I114l111 10
fit
DATE: 06/09/04
THIS DRAWING AND THE IDEAS, DESIGNS AND
CONCEPTS CONTAINED HEREIN ARE THE EXCLUSIVE
INTELLECTUAL PROPERTY OF THE SCHNEIDER
CORPORATION, AND ARE NOT TO BE USED OR
REPRODUCED, IN WHOLE OR IN PART, WITHOUT
THE WRITTEN CONSENT OF THE SCHNEIDER
CORPORATION.
COPYRIGHTED BY THE SCHNEIDER CORP. (2005)
tC,
Schneider
THE SCHNEIDER CORPORATION
Avon Office
6845 East U.S. 36
Suite 500
Avon, IN 46123
Telephone: 317.272.0108
Fax: 317.272.0412
www. sch n eidercorp. corn
Architecture
Civil Engineering
Environmental Engineering
Geotechnical Services
GIS LIS
Home Builder Services
Interior Design
Land Surveying
Landscape Architecture
Transportation Engineering
REVISED PER H.C. S.W.C.D. COMMENTS