Industrial Stormwater Fact Sheet Series Sector P: Motor Freight Transportation Facilities, Passenger Transportation Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation Facilities, and United States Postal Service Transportation Facilities


INDUSTRIAL   STORMWATER
FACT SHEET SERIES
                      Sector P: Motor Freight Transportation Facilities, Passenger Transportation
                                   Facilities, Petroleum Bulk Oil Stations and Terminals, Rail
                                        Transportation Facilities, and United States Postal
           U.S. EPA Office of Water                             Service Transportation Facilities
           EPA-833-F-06-031
           December 2006
 What is the NPDES stormwater permitting program for industrial
 activity?
 Activities, such as material handling and storage, equipment maintenance and cleaning, industrial
 processing or other operations that occur at industrial facilities are often exposed to stormwater. The
 runoff from these areas may discharge pollutants directly into nearby waterbodies or indirectly via
 storm sewer systems, thereby degrading water quality.

 In 1990, the U.S.  Environmental Protection Agency (EPA) developed permitting regulations under the
 National Pollutant Discharge Elimination System (NPDES) to control stormwater discharges associated
 with eleven categories of industrial activity. As a result, NPDES permitting authorities, which may be
 either EPA or a state environmental agency, issue stormwater permits to control runoff from these
 industrial facilities.


 What types of industrial facilities are required to obtain permit
 coverage?
 This fact sheet specifically discusses stormwater discharges from land transportation and warehousing
 activities as defined by Standard Industrial Classification (SIC) Major Groups 40, 41, 42, 43, and SIC
 5171. Facilities and products in this group fall under the following categories, all of which require
 coverage under an industrial stormwater permit:
    4- Motor freight transportation facilities (SIC 4212-4231)
    4- Passenger transportation facilities (SIC 4111-4173)
    4 Petroleum bulk oil stations and terminals (SIC 5171)
    4- Rail transportation facilities (SIC 4011, 4013)
    4 United States Postal Service facilities (SIC 4311)

 Vehicle and equipment maintenance is a broad term used to include the following activities:
    4 Vehicle and equipment fluid changes
    4 Mechanical repairs
    4 Parts cleaning
    4 Sanding
    4 Refinishing
    4 Painting and/or fueling
    4 Locomotive sanding (loading sand for traction)
    4 Storage of vehicles and equipment waiting for  repair or maintenance
    4 Storage of the related materials and waste materials, such as oil, fuel, batteries, tires, or oil
      filters

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INDUSTRIAL STORMWATER FACT SHEET SERIES
Sector P: Motor Freight Transportation Facilities, Passenger Transportation
Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation
Facilities, and United States Postal Service Transportation Facilities

  Equipment cleaning operations include areas where the following types of activities take place:
     4  Vehicle exterior wash down
     4  Interior trailer washouts
     4  Tank washouts
     4  Rinsing of transfer equipment

  What does an industrial storm water permit require?
  Common requirements for coverage under an industrial stormwater permit include development of a
  written stormwater  pollution prevention plan (SWPPP), implementation of control measures, and sub-
  mittal  of a request for permit coverage, usually referred to as the Notice of Intent or NOI. The SWPPP
  is a written assessment of potential sources of pollutants in stormwater runoff and control measures
  that will be implemented at your facility to minimize the discharge of these pollutants in runoff from
  the site. These control measures include site-specific best management practices (BMPs), maintenance
  plans,  inspections, employee training, and reporting. The procedures detailed in the SWPPP must be
  implemented by the facility and updated as necessary, with a copy of the SWPPP kept on-site. The in-
  dustrial stormwater  permit also requires collection of visual, analytical, and/or compliance monitoring
  data to determine the effectiveness of implemented BMPs. For more information on EPA's industrial
  stormwater permit and links to State stormwater permits, go to www.epa.gov/npdes/stormwater
  and click on "Industrial Activity."

  What pollutants are associated with activities at my facility?
  Pollutants conveyed in stormwater discharges from land transportation and warehousing activities
  will vary. There are a number of factors that influence to what extent industrial activities and
  significant materials can affect water quality.
     4  Geographic location
     4  Topography
     4  Hydrogeology
     4  Extent of impervious surfaces (e.g.,, concrete or asphalt)
     4  Type of ground cover (e.g., vegetation, crushed stone, or dirt)
     4  Outdoor activities (e.g., material storage, loading/unloading, vehicle maintenance)
     4  Size of the operation
     4  Type, duration, and  intensity of precipitation events

  The activities, pollutant sources, and pollutants detailed in Table 1 are commonly found at facilities
  with vehicle and equipment maintenance and equipment cleaning operations and Table 1A details ac-
  tivities, pollutant sources, and pollutants commonly found at petroleum bulk oil stations and terminals.

  Table 1.  Common Activities, Pollutant Sources, and Associated Pollutants at Motor Freight
  Transportation Facilities, Passenger Transportation Facilities, Rail Transportation Facilities, and
  United States Postal Service Transportation Facilities
Activity
Fueling
Pollutant Source
Spills and leaks during fuel delivery
Spills caused by "topping off" fuel tanks
Rainfall falling on the fuel area or stormwater running
onto the fuel area
Hosing or washing down fuel area
Leaking storage tanks
Pollutant
Fuel, oil, heavy metals
  EPA-833-F-06-031

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INDUSTRIAL STORMWATER FACT SHEET SERIES
Sector P: Motor Freight Transportation Facilities, Passenger Transportation
Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation
Facilities, and United States Postal Service Transportation Facilities
  Table 1. Common Activities, Pollutant Sources, and Associated Pollutants at Motor Freight
  Transportation Facilities, Passenger Transportation Facilities, Rail Transportation Facilities, and
  United States Postal Service Transportation Facilities (continued)
Activity
Vehicle washing
and maintenance
Outdoor vehicle
and equipment
storage and parking
Painting areas
Railroad locomotive
sanding
Liquid storage
in above ground
storage
Pollutant Source
Parts cleaning
Waste disposal of greasy rags, oil filters, air filters,
batteries, hydraulic fluids, transmission fluid, radiator
fluids, degreasers
Spills of oil, degreasers, hydraulic fluids, transmission
fluid, radiator fluids
Fluids replacement, including oil, hydraulic fluids,
transmission fluid, radiator fluids
Washing or steam cleaning
Leaking vehicle fluids including hydraulic lines and
radiators, leaking or improperly maintained locomotive
on-board drip collection systems, brake dust
Paint and paint thinner spills
Spray painting
Sanding or paint stripping
Paint clean up
Loading traction sand on locomotives
External corrosion and structural failure
Installation problems
Spills and overfills due to operator error
Failure of piping systems (pipes, pumps, flanges,
couplings, hoses, and valves)
Pollutant
Chlorinated solvents, oil, heavy metals,
acid/alkaline wastes
Oil, heavy metals, chlorinated solvents,
acid/alkaline wastes, ethylene glycol
Oil, arsenic, heavy metals, organics,
chlorinated solvents, ethylene glycol
Oil, arsenic, heavy metals, organics,
chlorinated solvents, ethylene glycol
Oil, detergents, heavy metals, chlorinated
solvents, phosphorus, salts, suspended
solids
Oil, hydraulic fluids, arsenic, heavy
metals, organics, fuel
Paint, spent chlorinated solvents, heavy
metals
Paint solids, heavy metals
Dust, paint solids, heavy metals
Paint, spent chlorinated solvents, heavy
metals
Sediment
Oil, grease, heavy metals, materials being
stored
  Table 1A. Common Activities, Pollutant Sources, and Pollutants at Petroleum Bulk Oil Stations and
  Terminals
Activity
Liquid storage
in above ground
storage
Petroleum loading/
unloading
Pollutant Source
External corrosion and structural failure
Installation problems
Spills and overfills due to operator error
Failure of piping systems (pipes, pumps, flanges,
couplings, hoses, and valves)
Spills and overfills due to operator error
Pollutant
Oil, grease, heavy metals, materials
being stored
Oil, grease
  EPA-833-F-06-031

What BMPs can be used to minimize contact between stormwater
and potential pollutants at my facility?
A variety of BMP options may be applicable to eliminate or minimize the presence of pollutants in
stormwater discharges from land transportation and warehousing activities. You will likely need to
implement a combination or suite of BMPs to address stormwater runoff at your facility. Your first
consideration should be for pollution prevention BMPs, which are designed to prevent or minimize
pollutants from entering stormwater runoff and/or reduce the volume of stormwater requiring
management. Prevention BMPs can include regular cleanup, collection and containment of debris
in storage areas, and other housekeeping practices, spill control, and employee training. It may
also be necessary to implement treatment BMPs, which are engineered structures intended to treat
stormwater runoff and/or mitigate the effects of increased stormwater runoff peak rate, volume, and
velocity. Treatment BMPs are generally more expensive to install and maintain and include oil-water
separators, wet ponds, and proprietary filter devices.

BMPs must be selected and implemented to address the following:

Good Housekeeping Practices
Good housekeeping is a practical, cost-effective way to maintain a clean and orderly facility to
prevent potential pollution sources from coming into contact with stormwater. It includes establishing
protocols to reduce the possibility of mishandling materials or equipment and training employees
in good housekeeping techniques. Common areas where good housekeeping practices should be
followed include trash containers and adjacent areas, material storage areas, vehicle and equipment
maintenance areas, and loading docks. Good housekeeping practices must include a schedule for
regular pickup and disposal of garbage and waste materials and routine inspections of drums, tanks,
and containers for leaks and structural conditions. Practices also include containing and covering
garbage, waste materials, and debris. Involving employees in routine monitoring of housekeeping
practices has proven to be an effective means of ensuring the continued implementation of these
measures.

Minimizing Exposure
Where feasible, minimizing exposure of potential pollutant sources to precipitation is an important
control option. Minimizing exposure prevents pollutants, including debris, from coming into contact
with precipitation and can reduce the need for BMPs to treat contaminated stormwater runoff. It can
also prevent debris from being picked up by stormwater and carried into drains and surface waters.
Examples of BMPs for exposure minimization include covering materials or activities with temporary
structures (e.g., tarps) when wet weather is expected or moving materials or activities to existing
or new permanent structures (e.g., buildings, silos, sheds). Even the simple practice of keeping a
dumpster lid closed can be a very effective pollution prevention measure.

Erosion and Sediment Control
BMPs must be selected and implemented to limit erosion on areas of your site that, due to
topography, activities, soils, cover, materials, or other factors are likely to experience erosion. Erosion
control BMPs such as seeding, mulching, and sodding prevent soil from becoming dislodged and
should be considered first. Sediment control BMPs such as silt fences, sediment ponds, and stabilized
entrances trap sediment after it has eroded. Sediment control BMPs should be used to back-up
erosion control BMPs.

Management of Runoff
Your SWPPP must contain a narrative evaluation of the appropriateness of stormwater management
practices that divert, infiltrate, reuse, or otherwise manage stormwater runoff so as to reduce the
discharge of pollutants. Appropriate measures are highly site-specific, but may include, among others,

EPA-833-F-06-031 4

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INDUSTRIAL STORMWATER FACT SHEET SERIES
Sector P: Motor Freight Transportation Facilities, Passenger Transportation
Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation
Facilities, and United States Postal Service Transportation Facilities
vegetative swales, collection and reuse of stormwater, inlet controls, snow management, infiltration
devices, and wet retention measures.
A combination of preventive and treatment BMPs will yield the most effective stormwater
management for minimizing the offsite discharge of pollutants via stormwater runoff. Though not
specifically outlined in this fact sheet, BMPs must also address preventive maintenance records or
logbooks, regular facility inspections, spill prevention and response, and employee training.
All BMPs require regular maintenance to function as intended. Some management measures have
simple maintenance requirements, others are quite involved. You must regularly inspect all BMPs to
ensure they are operating properly, including during runoff events. As soon as a problem is found,
action to resolve it should be initiated immediately.
Implement BMPs, such as those listed below in Table 2 and 2A for the control of pollutants at land
transportation and warehousing facilities, to minimize and prevent the discharge of pollutants in
stormwater. Identifying weaknesses in current facility practices will aid the permittee in determining
appropriate BMPs that will achieve a reduction in pollutant loadings. BMPs listed in Table 2 and
2A are broadly applicable to land transportation and warehousing facilities; however, this is not
a complete list and you are recommended to consult with regulatory agencies or a stormwater
engineer/consultant to identify appropriate BMPs for your facility.
Table 2. BMPs for Potential Pollutant Sources at Motor Freight Transportation Facilities,
Passenger Transportation Facilities, Rail Transportation Facilities, and United States Postal Service
Transportation Facilities
Pollutant Source
BMPs
Fueling
Stationary fueling areas
Q Conduct fueling operations (including the transfer of fuel from tank trucks) on an impervious
or contained pad or under a roof or canopy where possible. Covering should cover extend
beyond spill containment pad to prevent rain from entering.
FJ When fueling in uncovered area, use concrete pad (not asphalt, which is not chemically
resistant to the fuels being handled).
FJ Use drip pans where leaks or spills of fuel can occur, and where making and breaking hose
connections.
FJ Use fueling hoses with check valves to prevent hose drainage after filling.
FJ Keep spill cleanup materials readily available. Clean up spills and leaks immediately.
FJ Minimize/eliminate run-on to fueling areas with diversion dikes, berms, curbing, surface
grading or other equivalent measures.
Q Collect stormwater runoff and provide treatment or recycling.
Q Use dry cleanup methods for fuel area rather than hosing down the fuel area. Perform
preventive maintenance on storage tanks to detect potential leaks before they occur.
Q Inspect the fueling area for leaks and spills.
Q Provide curbing or posts around fuel pumps to prevent collisions during vehicle ingress and
egress.
FJ Discourage "topping off" of fuel tanks.
Mobile fueling area
FJ Use drip pan under the transfer hose.
FJ Use fueling hoses with check valves to prevent hose drainage after filling.
EPA-833-F-06-031

Vehicle and
equipment
maintenance

BMPs
Mobile fueling areas (contiuned)
Q
a
a
Ensure the fueling vehicle is equipped with a manual shutoff valve.
Discourage "topping off" of fuel tanks.
Train personnel on vehicle fueling BMPs.
Good Housekeeping
Q Eliminate floor drains that are connected to the storm or sanitary sewer. If necessary, install a
sump that is pumped regularly. Collected wastes should be properly treated or disposed of by
a licensed waste disposal company.
a
a
a

a
a
a
a
a
a
a
a
a
a
a
Do all cleaning at a centralized station so the solvents stay in one area.
If parts are dipped in liquid, remove them slowly to avoid spills.
Use drip pans, drain boards, and drying racks to direct drips back into a fluid holding tank for
reuse.
Drain all parts of fluids into appropriate containers for waste disposal or re-use prior to
disposal. Oil filters can be crushed and recycled.
Promptly transfer used fluids to the proper container; do not leave full drip pans or other open
containers around the shop. Empty and clean drip pans and containers. Washwater should
also generally be treated as a waste material and disposed of appropriately.
Clean up leaks, drips, and other spills without using large amounts of water. Use absorbents
for dry cleanup whenever possible.
Prohibit the practice of hosing down an area where the practice would result in the discharge
of pollutants to a storm sewer system.
Do not pour liquid waste into floor drains, sinks, outdoor storm drain inlets, or other storm
drains or sewer connections. Liquid wastes should be collected in a properly labeled container,
and disposed of by a licensed waste hauler or other appropriate method.
Maintain an organized inventory of materials.
Eliminate or reduce the number and amount of hazardous materials and waste by substituting
nonhazardous or less hazardous materials.
Label and track the recycling of waste material (e.g., used oil, spent solvents, batteries).
Store batteries and other significant materials inside.
Dispose of greasy rags, oil filters, air filters, batteries, spent coolant, and degreasers in
compliance with RCRA regulations.
Request and keep manifests of all waste materials hauled away from your facility.
Minimizing Exposure
a
a
a
a
Perform all cleaning operations indoors or under cover when possible. Conduct the cleaning
operations in an area with a concrete floor with no floor drain other than to sanitary sewers or
treatment facilities. Notable discharges to sanitary sewer systems must be done in compliance
with rules and policies of the POTW operator.
If operations are outside and exposed to stormwater, perform them on a concrete pad that is
impervious and contained.
Park vehicles and equipment indoors or under a roof whenever possible.
Check vehicles closely for leaks and use pans to collect fluid when leaks occur.

EPA-833-F-06-031

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INDUSTRIAL STORMWATER FACT SHEET SERIES
Sector P: Motor Freight Transportation Facilities, Passenger Transportation
Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation
Facilities, and United States Postal Service Transportation Facilities
Table 2. BMPs for Potential Pollutant Sources at Motor Freight Transportation Facilities,
Passenger Transportation Facilities, Rail Transportation Facilities, and United States Postal Service
Transportation Facilities (continued)
Pollutant Source
BMPs
Vehicle and
equipment
maintenance
(continued)
Management of Runoff
FJ Use berms, curbs, grassed swales or other diversion measures to ensure that stormwater
runoff from other parts of the facility does not flow over the maintenance area.
Q Collect the stormwater runoff from the cleaning area and provide treatment or recycling.
Q Discharge vehicle wash or rinse water to the sanitary sewer (if allowed by sewer authority),
wastewater treatment, a land application site, or recycle on-site. DO NOT discharge washwater
to a storm drain or to surface water.
Inspections and Training
Q Inspect the maintenance area regularly to ensure BMPs are implemented.
Q Train employees on waste control and disposal procedures.
Outdoor vehicle and
equipment storage
and parking
Q Store vehicles and equipment indoors when possible.
Q Cover the storage area with a roof.
Q Provide diversion berms, dikes or grassed swales around the perimeter of the area to limit
run-on.
FJ Use drip pans under all vehicles and equipment waiting for maintenance.
FJ Use absorbents for dry cleanup for spills and leaks.
FJ Clean pavement surface to remove oil and grease without using large amounts of water.
FJ Regularly sweep area to minimize debris on the ground.
FJ Provide dust control if necessary. When controlling dust, sweep and/or apply water or
materials that will not impact surface or ground water.
FJ Inspect the storage yard for filling drip pans and regularly to ensure BMPs are implemented.
FJ Train employees on procedures for storage and inspection items.
Locomotive sanding
areas
FJ Cover sand storage piles.
FJ Confine storage to areas outside of drainage pathways and away from surface waters.
FJ Divert stormwater around storage areas with vegetated swales, and/or berms.
FJ Practice good housekeeping measures such as frequent removal of dust and debris. Cleanup
methods may include sweepers, scrapers, or scoops.
Q Use properly designed basins for containment and collection,
Q Use control measures such as berms, silt fences, waddles or sediment traps to control
sediment from leaving storage area.
Q Inspect the area regularly to ensure BMPs are implemented.
Q Train employees on BMP inspection and maintenance procedures.
Painting areas
Confine activities to designated areas outside drainage pathways and away from surface
waters.
Enclose, cover, or contain painting activities to the maximum extent practical to prevent
overspray from reaching surface waters.
Hang plastic barriers or tarpaulins during blasting or painting operations to contain debris
Prohibit uncontained spray painting activities.
EPA-833-F-06-031

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INDUSTRIAL STORMWATER FACT SHEET SERIES
Sector P: Motor Freight Transportation Facilities, Passenger Transportation
Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation
Facilities, and United States Postal Service Transportation Facilities
Table 2. BMPs for Potential Pollutant Sources at Motor Freight Transportation Facilities,
Passenger Transportation Facilities, Rail Transportation Facilities, and United States Postal Service
Transportation Facilities (continued)
Pollutant Source
BMPs
Painting areas
(continued)
Q Prohibit spray painting activities during windy conditions which render containment
ineffective.
Q Use spray equipment that delivers more paint to the target and less overspray.
FJ Mix paints and solvents in designated areas away from drains, ditches, piers, and surface
waters, preferably indoors or under cover.
FJ Have absorbent and other cleanup items readily available for immediate cleanup of spills.
Q Allow empty paint cans to dry before disposal.
FJ Store paint and paint thinner away from traffic areas to avoid spills.
Q Recycle paint, paint thinner, and solvents.
FJ Establish and implement effective inventory control to reduce paint waste, including tracking
date received and expiration dates.
FJ Store waste paint, solvents, and rags in covered containers to prevent evaporation to the
atmosphere.
Q Use solvents with low volatility and coatings with low VOC content; use high transfer
efficiency coating techniques such as brushing and rolling to reduce overspray and solvent
emissions.
Q Inspect painting procedures to ensure that they are conducted properly.
FJ Train employees on proper sanding, painting, and spraying techniques.
Q Wash paint brushes, rollers and other equipment in utility sinks or other locations where wash
water is treated or hauled. Do not wash equipment outside on pavement or into storm drains.
Vehicle washing
Q Avoid washing parts or equipment outside.
Q Confine activities to designated areas outside drainage pathways and away from surface
waters.
FJ If washing outdoors, cover the cleaning operation and ensure that all washwaters drain to the
intended collection system.
FJ Use phosphate-free biodegradable detergents.
Q Contain and recycle washwaters.
FJ Collect stormwater runoff from the cleaning area and provide treatment or recycling.
Q Inspect cleaning area regularly to ensure BMPs are implemented and maintained.
FJ Train employees on proper washing procedures.
Liquid storage
in above ground
storage tanks
FJ Store materials inside.
Q If area is uncovered, connect sump outlet to sanitary sewer (if possible) or an oil/water
separator, catch basin filter, etc. If connecting to a sanitary sewer check with the system
operator to ensure that the discharge is acceptable. If implementing separator or filter
technologies ensure that regular inspections and maintenance procedures are in place.
Q Develop and implement spill plans.
Q Train employees in spill prevention and control.
Above ground tanks
FJ Provide secondary containment, such as dikes, with a height sufficient to contain a spill
(the greater of 10 percent of the total enclosed tank volume or 110 percent of the volume
contained in the largest tank).
EPA-833-F-06-031

FJ If containment structures have drains, ensure that the drains have valves, and that valves
are maintained in the closed position. Institute protocols for checking/testing stormwater in
containment areas prior to discharge.

Q Use double-walled tanks with overflow protection.

Q Keep liquid transfer nozzles/hoses in secondary containment area.

Portable containers/drums

Q Store drums indoors when possible.

Q Store drums, including empty or used drums, in secondary containment with a roof or cover
(including temporary cover such as a tarp that prevents contact with precipitation).

FJ Provide secondary containment, such as dikes or portable containers, with a height sufficient
to contain a spill (the greater of 10 percent of the total enclosed tank volume or 110 percent
of the volume contained in the largest tank).

FJ Clearly label drum with its contents.

FJ Train employees on proper filling and transfer procedures.
Cold weather
activities
FJ Minimize salt and abrasive application.

FJ When abrasives are necessary, use uncontaminated sand or ash.

FJ Train employees on salt and abrasive application.
Improper
connections to
storm sewer (illicit
connections)
Plug all floor drains connected to sanitary or storm sewer or if connection is unknown.
Alternatively, install a sump that is pumped regularly.

Perform smoke or dye testing to determine if interconnections exist between sanitary water
system and storm sewer system.

Update facility schematics to accurately reflect all plumbing connections.

Install a safeguard against vehicle washwaters entering the storm sewer unless permitted.

Inspect and maintain the integrity of all underground storage tanks; replace when necessary.

Train employees on BMP disposal practices for all materials.
Table 2A. BMPs for Potential Pollutant Sources at Petroleum Bulk Oil Stations and Terminals
Pollutant Source
Liquid storage in above
ground storage
BMPs
Q If area is uncovered, connect sump outlet to sanitary sewer (if possible) or an oil/water
separator, catch basin filter, etc. If connecting to a sanitary sewer check with the system
operator to ensure that the discharge is acceptable. If implementing separator or filter
technologies ensure that regular inspections and maintenance procedures are in place.
FJ Provide secondary containment, such as dikes, with a height sufficient to contain a spill
(the greater of 1 0 percent of the total enclosed tank volume or 1 1 0 percent of the volume
contained in the largest tank).
Q If containment structures have drains, ensure that the drains have valves, and that valves
are maintained in the closed position. Institute protocols for checking/testing stormwater in
containment areas prior to discharge.
FJ Use double-walled tanks with overflow protection

EPA-833-F-06-031

Q Develop and implement spill plans and spill prevention, containment and countermeasures
(SPCC).

FJ Train employees in spill prevention and control.
Petroleum loading/
unloading
FJ Confine loading/unloading activities to designated areas outside drainage pathways and
away from surface waters.

FJ Provide diversion berms, dikes or grassed swales around the perimeter of the area to limit
run-on.

FJ Avoid loading/unloading materials in the rain or provide cover or other protection for
loading docks.

Q Cover loading and unloading areas and perform these activities on an impervious pad to
enable easy collection of spilled materials.

Q Provide overhangs at truck loading/unloading docks.

Q Slope the impervious concrete floor to collect spills and leaks and convey them to proper
containment and treatment.

FJ For rail transfer, a drip pan shall be installed within the rails to collect spillage from the tank.

FJ For transfer to/from truck or rail cars, ensure hose connection points at storage containers
are inside containment areas, or drip pans are used in areas where spillage may occur which
are not in a containment area.

FJ Regularly sweep area to minimize debris on the ground.

FJ Develop and implement spill prevention, containment, and countermeasure (SPCC) plans.

FJ Train employees in spill prevention, control, cleanup and transfer techniques.
What if activities and materials at my facility are not exposed to
precipitation?
The industrial stormwater program requires permit coverage for a number of specified types of
industrial activities. However, when a facility is able to prevent the exposure of ALL relevant activities
and materials to precipitation, it may be eligible to claim no exposure and qualify for a waiver from
permit coverage.

If you are regulated under the industrial permitting program, you must either obtain permit coverage
or submit a no exposure certification form, if available. Check with your permitting authority for
additional information as not every permitting authority program provides no exposure exemptions.

Where do I get more information?
For additional information on the industrial stormwater program see
www.epa.gov/npdes/stormwater/msgp.

A list of names and telephone numbers for each EPA Region or state NPDES permitting authority can
be found at www.epa.gov/npdes/stormwatercontacts.
EPA-833-F-06-031
10

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INDUSTRIAL STORMWATER FACT SHEET SERIES
Sector P: Motor Freight Transportation Facilities, Passenger Transportation
Facilities, Petroleum Bulk Oil Stations and Terminals, Rail Transportation
Facilities, and United States Postal Service Transportation Facilities


  References
  Information contained in this Fact Sheet was compiled from EPA's past and current Multi-Sector
  General Permits and from the following sources:

     4  City of Phoenix, Arizona, Street Transportation Department. 2004. Prevent Storm Water
        Contamination: Best Management Practices for Section P - Motor Freight, Freight
        Transportation, Petroleum Bulk Stations & Terminals, Rail Transportation, & U.S.  Postal Service
        Transportation. SIC Codes Major Groups 40, 41, 42, 43, and 5171.
        http://phoenix.gov/STREETS/motfrei.pdf

     4  U.S. EPA, Office of Science and Technology. 1999. Preliminary Data Summary of Urban
        Stormwater Best Management Practices. EPA-821-R-99-012
        www.epa.gov/OST/stormwater/

     4  U.S. EPA, Office of Wastewater Management. NPDES Stormwater Multi-Sector General Permit
        for Industrial Activities (MSGP).
        www.epa.gov/npdes/stormwater/msgp
  EPA-833-F-06-031                                                                           11

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