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Auto Dealers
BMP IC-2
This
Fact Sheet provides Best Management Practices (BMPs) that are recommended for
facilities that buy, trade and sell automobiles.
Potential
Pollutant Sources
The following activities are
potential sources of pollutants:
·
Minor automobile servicing
·
Cleaning Floors
·
Washing cars
·
Parking lot cleaning
Pollutants may include:
·
Heavy metals (copper, lead, nickel, and zinc)
·
Hydrocarbons (oil and grease, PAHs)
·
Toxic chemicals (solvents, chlorinated compounds, glycols)
·
Acids and alkalis
Pollution Prevention
Implementation of pollution prevention measures may reduce
or eliminate the need to implement other more costly or complicated procedures.
The following pollution prevention principles apply to most
facilities:
·
Use alternative, safer, non-toxic, and/or recycled products;
·
Reduce storm water flow across the site and redirect flows away
from storm drains, gutters, and streets;
·
Reduce the use of water and/or use dry methods;
·
Recycle and reuse waste products and waste flows; and
·
Provide on-going employee training.
Best
Management Practices and Procedures
GENERAL
►
If water is being used for cleaning shop floors and adjacent
outdoor areas, contain the wash water and dispose of in the sanitary sewer (if
allowed by the local sewer authority) or for offsite disposal, do not dispose of
in the gutter or street.
►
Maintain facility grounds and move or cover activities and
materials to prevent contact with storm water.
►
Inspect and clean leaks and drips routinely.
►
Label drains within the facility boundary, by paint/stencil (or
equivalent), to indicate whether they flow to an oil/water separator, directly
to the sewer, or to a storm drain.
MINOR AUTOMOBILE
SERVICING
Maintenance and
Repair Work
►
Only conduct maintenance or repair work in designated areas with
spill containment.
■
■
Construct a berm or intercept trench at doorways to prevent the
run-on of uncontaminated
stormwater from adjacent areas as well as stormwater
runoff.
■
Avoid working over asphalt and dirt floors which can absorb
vehicle fluids.
►
Perform all vehicle fluid removal or changing inside or under
cover if possible to prevent the run-on of storm water and the runoff of spills:
■
Keep a drip pan under the vehicle while unclipping hoses, unscrew
filters, or removing other parts. Use a drip pan under any vehicle that might leak.
■
Promptly transfer used fluids to the proper waste or recycling
drums. Do not leave drip pans or
other open containers lying around.
■
Do not change motor oil or perform equipment maintenance in
non-appropriate areas.
►
Use a tarp, ground cloth, or drip pans beneath the vehicle or
equipment to capture all spills and drips if temporary work is being conducted
outside. Collected drips and spills
must be disposed, reused, or recycled properly.
CLEANING FLOORS
►
Use dry cleaning methods (i.e. sweeping, vacuuming) to prevent the
discharge of pollutants to the storm drain conveyance system.
►
If cleaning agents are used, select biodegradable products.
►
If water is used, block off storm drain or contain runoff and
collect wash water to pump into the sanitary sewer, if allowed.
If wash water does not contain soap or other cleaning agents, discharge
to a pervious surface. If wash
water contains soaps or other cleaning agents and can not be pumped to the
sanitary sewer, it may need to be disposed of as hazardous waste.
WASHING CARS
►
Use off-site commercial washing businesses, if feasible.
►
Designate an impervious indoor or outdoor area to be used solely
for vehicle washing. Clearly mark
the vehicle washing area.
►
Design wash area to collect and properly dispose of wash water
and/or effluent generated.
■
Install sumps or drain lines to collect wash water.
■
Construct a berm around the area to collect wash water and prevent
storm water run-on.
■
Use portable containment and vacuum collect the wash water.
►
If the wash area is outdoors, cover the area when not in use.
■
Collect all wash water from vehicle cleaning operations and
discharge to a sanitary sewer (if allowed by the local sewer authority ),
holding tank, or process treatment system through an enclosed recycling system.
■
Do not discharge wash water to sanitary sewer until contacting the
local sewer authority to find out if pretreatment is required.
■
Install a water recirculation/reclamation system, if feasible.
►
Use biodegradable, phosphate-free detergents. Remember, even
though these detergents are better, the wash water still needs to be discharged
to the sanitary sewer.
►
Provide trash containers in wash area and empty on a regular
basis. Use recycle bins.
►
Use hoses with nozzles that automatically turn off when left
unattended.
►
Do not degrease the engine in the wash area.
Take the vehicle to an off-site facility that can process the wastewater.
PARKING LOT CLEANING
►
Inspect the storage yard for filling drip pans and other programs
(leaking equipment) regularly.
►
Provide an adequate number of litter receptacles.
Clean out and cover litter receptacles frequently to prevent spillage.
►
Clean oil/water/sand separators regularly, especially after heavy
storms.
►
Establish a parking lot sweeping frequency based on usage and
waste accumulation.
►
Sweep all parking lots at least once before the onset of the wet
season.
►
Inspect and clean if necessary, storm drain inlets and catch
basins within the facility boundary before October 1 each year.
►
Use dry cleaning methods (i.e. sweeping, vacuuming) to prevent the
discharge of pollutants into the storm drain conveyance system.
►
If water or cleaning agents are used for cleaning (even
biodegradable cleaners) :
■
Block the storm drain or contain runoff.
■
Wash water should be collected and pumped to the sanitary sewer or
discharge to a pervious surface. Do not allow wash water to enter storm drains, gutters, or
streets. If wash water does not
contain soap or other cleaning agents, discharge to a pervious surface.
■
Dispose parking lot sweeping debris and dirt in the trash.
►
When cleaning heavy oily deposits:
■
Use absorbent materials on oily spots prior to sweeping or
washing.
■
Dispose used absorbents appropriately.
■
Vacuum/pump discharges to a tank or discharge to a sanitary sewer
(with permission).
SPILL CONTROL
►
Develop and maintain a spill response plan.
►
Place an adequate stockpile of spill cleanup materials where it
will be readily accessible.
►
Spot clean leaks and drips routinely.
►
Clean leaks, drips, and other spills with as little water as
possible. Use rags for small
spills, a damp mop for general cleanup, and dry absorbent material for larger
spills.
►
Remove the absorbent materials promptly and dispose of properly.
►
Keep the spill from entering the street, gutter, or storm drain.
Employee
Training
·
Train employees on these practices
·
Train staff on the proper maintenance of the facility.
·
Train employees on proper spill containment and cleanup
procedures.
·
Establish a regular training schedule for employees, and conduct
annual refresher training.
·
Use a training log or similar method to document training.
PHONE NUMBERS
San Joaquin County Stormwater Management 468-3055
San Joaquin County Sanitary Sewer Agency 468-3090
City of Stockton Stormwater Management
937-8791
City of Stockton Sanitary Sewer Agency
937-8750
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