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These rules etc. are for Sacramento County, your local area may have different regulations / guidelines.
Best Management Practices for Sacramento County California.
Best Management Practices
For Pressure Washing.
Requirements for the disposal of waste and wastewater generated by the use of
pressure washing equipment when generated within the bounds of Sacramento
County. It also provides information on practical methods, known as Best
Management Practices (BMPs), which may be used to protect the environment and to
comply with regulatory requirements.
These requirements and BMPs apply to anyone within Sacramento County who
generates wastewater from pressure washing, including:
contractors that provide a pressure washing service to others
businesses that use pressure washing equipment as part of their
operations or maintenance (such as cleaning heavy equipment)
homeowners
What is Pressure Washing?
Pressure washing uses mechanical equipment to create a high pressure stream of
water, typically ejected from a hand-held wand or nozzle. This jet of water is used for
cleaning a wide variety of surfaces and objects. Depending on the application,
pressure washing may be conducted with or without heated water or added cleaners.
In recent years, the use of pressure washing equipment has grown substantially.
Numerous contractors provide pressure washing as a service to others, businesses
purchase their own units to use in their own operations and maintenance, and many
homeowners rent units or purchase low cost ones.
Pressure washing is used to clean many things, including:
Trucks
Automobile fleets
Parking lots
Building exteriors
Sidewalks
Drive-thrus
Heavy equipment
Roofs
Restaurant equipment and hood filters
Graffiti
Pressure washing equipment is also used for stripping paint or for preparing and
treating other types of surfaces.
The Problem
Most pressure washing activities are conducted outside. This often results in the
discharge of wastewater to the storm drainage system, unless the equipment
operator takes steps to collect and dispose of it legally. Discharge of pressure
washing wastewater to the storm drainage system is prohibited because it contains
pollutants from the cleaning compounds used and/or from the objects or surfaces
being cleaned. Even cleaners labeled “biodegradable†and “non-toxic†may be
harmful to aquatic life, especially after cleaning various surfaces (e.g. dumpster
areas, parking lots, equipment and more) that contain oils, greases, chemicals, and
other substances.
Any substance, including pressure washing wastewater that enters storm drains
flows directly into lakes, rivers, and streams. This water is not treated or cleaned to
remove pollutants. Pollutants discharged to the storm drainage system harm fish and
wildlife and contaminate recreational sites and drinking water supplies.
Regulations
To improve the quality of water we fish and swim in, not to mention drink, Federal and
State regulations prohibit discharges of pollutants to water bodies without a permit.
Because of these regulations, the Cities of Citrus Heights, Elk Grove, Folsom,
Sacramento, Galt, Rancho Cordova, and the County of Sacramento are subject to a
Municipal Storm Water (MS4) Permit issued to them by the State of California. The
MS4 Permit requires local agencies to implement programs to reduce pollutants in
storm water runoff (directly caused by rainfall) and to effectively prohibit non-storm
water discharges.
As required by the MS4 Permit, these local agencies have adopted Storm Water
Ordinances that prohibit non-storm water discharges. The discharge of wastewater
from pressure washing to the storm drainage system or surface waters is prohibited
by these ordinances.
However, preventing discharge to the storm drainage system is only part of the story.
Improper discharges to the sanitary sewer, septic tanks, or land can also cause
environmental harm, damage equipment and facilities, and violate regulations.
Pressure Washing as Part of the Solution
Pressure washing is an activity that can help improve the quality of our waters when
done properly. By cleaning (pressure washing) surfaces (e.g. equipment, parking
lots, sidewalks, buildings, etc.), collecting the wastes (water and/or debris), and
properly disposing of the wastes, there is less chance of pollutants ending up in our
waterways. It is through education, proper collection and disposal that pressure
washing can have a positive impact on the environment!
Clean Water Business Partner Program (CWBP)
Pressure washers conducting business within Sacramento County are eligible to join
the CWBP (916-808-1726). The CWBP is an incentive-based program that rewards
local pressure washing businesses for promoting clean water awareness and
implementing BMPs such as properly collecting and discharging wastewater into the
sanitary sewer system for proper treatment.
DISPOSAL REQUIREMENTS AND PROHIBITIONS
Proper disposal of pressure washing wastewater, in compliance with environmental
regulations, depends on the nature of the pollutants in it. It is the responsibility of the
generator to determine the proper collection and disposal method for wastewater
created by pressure washing. To avoid unanticipated costs, delays, and violations,
this determination should always be made prior to starting any job.
All disposal methods are subject to requirements, restrictions, and prohibitions, and
are outlined below.
Storm Drains
Discharging pressure washing wastewater, into any natural body of water or
any storm drainage system, which includes storm drains, roadside ditches, and
gutters, and drainage channels, within Sacramento County, is prohibited by Federal,
State, and local laws.
Exceptions to this prohibition must be approved in writing by the local storm
water jurisdiction and the Central Valley Regional Water Quality Control Board.
Evaporation
Pressure washing wastewater that contains visible debris or residue; soap,
detergent or other cleaning agents; or excessive amounts of any pollutant, may not be
left on paved surfaces to evaporate, because the residue will eventually be
discharged to the storm drain.
Land Disposal
Wastewater disposal to land must not create a nuisance condition, flow into the
storm drain, or contaminate soil with hazardous waste.
Wastewater containing garbage, food wastes, or visible trash may not be
discharged to land.
Any wastewater disposal to land must have the approval of the property owner.
Sanitary Sewer
Disposal of pressure washing wastewater to the sanitary sewer within the
Sacramento Regional County Sanitation District (SRCSD) (916-875-6470) must meet
the requirements of SRCSD’s Sewer Use Ordinance and Surface Cleaning
Wastewater policy.
The Sacramento Regional County Sanitation District’s (SRCSD) sanitary sewer
system service area includes the Cities of Citrus Heights, Elk Grove, Folsom, Rancho
Cordova and Sacramento, the urban portions of unincorporated Sacramento County
(including the town of Locke), and in July, 2004 the towns of Courtland, and Walnut
Grove. Pressure washing contractors are required to obtain a permit prior to
discharging to SRCSD’s sanitary sewer system. The type of permit required is
dependent upon whether the wastewater is discharged at a place of business or at
an SRCSD septage site. Contact SRCSD for the Surface Cleaning Wastewater Policy
for more information.
Residential SRCSD customers conducting pressure washing activities at their
home are not required to obtain a permit. However, homeowners are required to
comply with the discharge requirements of the SRCSD Sewer Use Ordinance. Using
the BMPs described in this document will help residential users comply with SRCSD
requirements.
Businesses in the SRCSD service area utilizing a pressure washing
company/contractor that will be disposing of the wastewater into their sanitary sewer
clean-out/inlet are required to have a Sewer Use Questionnaire (SUQ) on file with
SRCSD. Note: property owner permission is required prior to discharging
wastewater into the customer’s sanitary sewer clean-out/inlet.
Discharges to the sanitary sewer within the Isleton, Galt and Walnut Grove
service areas must comply with the requirements of those respective districts: Call:
City of Galt (209) 366-7260, City of Isleton (916) 777-7770, or Walnut Grove (916) 776-
4051(Until July, 2004, then contact SRCSD).
Septic Systems
Discharges of pressure washing wastewater to a septic system anywhere
within Sacramento County must be approved by the County Water Protection Division
(916-875-8440). Discharges that contain hazardous waste, have the potential to harm
septic systems, or are likely to contaminate groundwater, will not be approved.
Hazardous Waste
Beware of pressure washing surfaces that contain lead-based paint, or areas
with freestanding liquids (e.g. oil, solvents, antifreeze, etc.). Pressure washing these
type of surfaces may generate hazardous waste (e.g., lead-based paint chips,
oil/grease, hydrofluoric acid, muriatic acid, etc.). Generating hazardous waste may
dramatically increase your operating costs and limit your disposal options. For more
information on hazardous waste determination call the Sacramento County
Hazardous Materials Division (HMD) at 916-875-8550 or the Business Environmental
Resource Center (BERC) at 916-364-4110.
BEST MANAGEMENT PRACTICES
PLANNING
Prior to beginning pressure washing activities, determine what collection
method you will be using and how you intend to properly dispose of the wastewater
generated from each cleaning activity.
Obtain all necessary permits and authorizations.
Identify the specific location where you will be disposing wastewater (e.g. job-
site sewer clean-out, county septage station, or the sewer clean-out at your place of
business).
Always obtain the property owner’s permission before disposing of wastewater
at a job site (i.e. sanitary sewer clean-out) and remind the business owner to have an
updated Sewer Use Questionnaire submitted to SRCSD.
SURFACE PRE-CLEANING
Consider using dry methods for surface pre-cleaning, such as using absorbents on
small oil spots and sweeping up trash/debris/dirt before wet washing. Pre-cleaning
is an activity that may reduce costs and simplify the wastewater disposal process.
However, you should also be aware of the costs and requirements associated with
disposing of pre-cleaning wastes which may be identified as hazardous waste and
require special management. Note: it is important to remember, when using dry pre-
cleaning methods, be sure to pick up pre-cleaning debris as soon as possible, so
the materials do not have a chance to enter the storm drains. For more information
call HMD at (916) 875-8550 or BERC at (916) 364-4110.
PRESSURE WASHING
Minimize the amount of water used during pressure washing activities, thus reducing
the volume of wastewater that needs to be properly disposed.
Avoid using cleaning products that contain hazardous substances (e.g.,
hydrofluoric acid, muriatic acid, sodium hydroxide, bleach, etc.) and can turn
wastewater into hazardous waste.
Acidic, caustic, and detergent cleaners may damage paved or coated surfaces.
Once most of the wastewater has been collected and properly disposed,
minimal residual amounts of wastewater that can not be collected and that will not
reach storm drains may be left on paved surfaces and allowed to evaporate. Note: It
may be necessary to sweep, or rinse and collect the wastewater from the area, to
avoid leaving behind visible residue that will be washed into the storm drain at a later
time.
Wastewater with high pollutant concentrations, including wastewater that
contains cleaning compounds, must be completely collected and may not be left to
evaporate.
WASTEWATER COLLECTION
Identify where all area storm drains are situated.
Locate property high and low-spots and determine the area where wastewater
can be pooled for collection. If a storm drain is located in the collection area, ensure
that the path to the drain is blocked or that a cover is tightly sealed over the drain
before allowing wastewater to collect in this area. Drainage swales may sometimes
be used to collect water before it enters a storm drain.
Common equipment used for containing and collecting wastewater generated
during pressure washing activities include: vacuum pumps, booms/berms, portable
containment areas, weighted storm drain covers, inflatable plumber’s plugs, oil/water
separators, holding tanks, portable sump pumps, hoses, absorbents, and more.
Avoid mixing non-hazardous wastewater with wastewater known to contain
hazardous levels of pollutants. This may increase the volume of waste and require
complicated treatment and/or disposal as a hazardous waste, thus increasing
disposal costs.
Place an oil-absorbent mat/pad on top of collected wastewater to help reduce
the amount of oil re-deposited on the surface of the collection area.
Once wastewater has been collected and/or discharged to the sanitary sewer
system, visible solids remaining in the collection area must be swept up to prevent
subsequent discharge to the storm drain. Alternatively, the collection area may be
rinsed, provided that any nearby drains are still covered or blocked, and the rinse
water is properly discharged to the sanitary sewer.
WASTEWATER DISPOSAL
All wastewater discharged into the sanitary sewer must meet the requirements of the
local sanitary sewer district (Galt, Isleton, SRCSD, or Walnut Grove (until July 2004 –
SRCSD after that date)) and often includes obtaining pre-approval prior to disposal.
Discharges within the SRCSD service area
Within the SRCSD service area, any pressure washing contractor discharging to the
sanitary sewer must have a permit issued by SRCSD. Most of the contiguous urban
area of Sacramento County, including unincorporated areas and all of the
incorporated cities of Citrus Heights, Elk Grove, Folsom, Rancho Cordova and
Sacramento are served by SRCSD.
The following activities in the SRCSD service area require a permit for pressure
washing contractors, however, they do not require pre-approval prior to each
discharge into the sanitary sewer system.
• Transportation related cleaning - washing fleet vehicle exteriors, mobile auto
detailing, and rinsing of automobiles, recreational vehicles (RV), and boats at retail
dealerships
• Surface related cleaning - sidewalks, plazas, driveways, parking garages,
service stations, and building exteriors and walls
• Food service related cleaning - restaurant alleys, grocery dumpster areas,
restaurant floor mats, exhaust filters, grease filters, lunch wagons (non-engine), and
food carts
Refer to SRCSD’s Surface Cleaning Wastewater Policy for specific requirements.
Other types of permitted wastewater discharges may be acceptable for disposal into
the sewer system, however pre-approval must be obtained by SRCSD prior to each
discharge. The following pressure washing activities require SRCSD pre-approval.
• Engine/equipment degreasing - wastewater must be treated with a
sand/oil/water separator or an equivalent level of treatment prior to discharge
• Acid cleaning - unpainted vehicles, equipment, structures, or containers
• Other activities not listed (Excluding Transportation, Surface, and Food Service
related cleaning)
Contact SRCSD for pre-approval authorization prior to each sewer discharge.
Approvals will be considered on a case-by-case basis.
Sewer Disposal Options
Disposal options for non-hazardous pressure washing wastewater include:
• Collecting and discharging wastewater into the sanitary sewer via the sanitary
sewer clean-out or sanitary sewer inlet at the point of generation (job site). This
activity must be conducted in accordance with SRCSD’s Surface Cleaning
Wastewater Policy and may require some form of pretreatment, depending on the
nature of the wastewater. In addition, this disposal method must be approved by the
property owner(s) prior to discharge.
• Collecting and transporting wastewater in a holding tank for proper sewer
system disposal at an off-site SRCSD septage site provided that 1) it is conducted in
accordance with SRCSD policies, and 2) a permit is obtained from SRCSD prior to
discharge.
• Collecting and discharging wastewater into the sanitary sewer at the pressure
washer’s place of business using the sewer clean out. Note: make sure to submit a
SUQ to SRCSD if you discharge pressure washing wastewater to the sanitary sewer
at your place of business.
• Obtain permission from the property owner for any type of discharge to the
sanitary sewer and make sure wastewater meets SRCSD guidelines and/or is
approved by an authorizing agency prior to seeking the property owner’s permission.
Sewer Discharges outside of the SRCSD but within Sacramento County
Contact the appropriate district: Galt at (209) 366-7260; Isleton at (916) 777-7770; or
Walnut Grove at (916) 776-4051 (until July 2004 at which time Walnut Grove will be
annexed into SRCSD).
Land Disposal
Wastewater may be collected and discharged or directed onto landscaped and/or dirt
areas only when the wastewater does not contain contaminants (i.e. solvents,
cleaners, oils, metals, etc.) that may constitute a hazardous waste, food products, or
create a nuisance condition. In addition, such discharges must soak into the ground
and may not flow into the storm drain. Make sure to obtain permission from the
property owner prior to discharging or diverting wastewater to landscapes and/or dirt
areas.
If you are diverting wastewater to landscaped areas, avoid damage to plants and soil
by minimizing or eliminating the use of soaps, detergents, and chemicals. Filter out
any solids that would be visible on the ground after discharge. In addition, minimize
the use of water to avoid wastewater overflowing from these areas. Note: Repeated
discharges to landscaped areas may result in an accumulation of contaminants, thus
damaging vegetation and increasing contaminant levels in the soil.
WASTEWATER TREATMENT
If you operate or are considering using a wastewater recycling or pretreatment unit (e.
g. oil/water separator), make sure you understand the waste streams that are
generated. Identify proper disposal methods for these wastes, and consider
disposal costs before starting a job. Some units, especially those that separate oil
from water, may generate hazardous waste (e.g. waste oil) and require special
storage and handling practices.
Consider contracting with a company that can provide appropriate treatment and
disposal of your wastes. This may save you time and money associated with
purchasing, permitting, and using your own wastewater treatment equipment. In
some cases, you may be able to reduce the liability that comes with the generation
and disposal of hazardous waste. For discharges within SRCSD, contact the
Industrial Waste Section at (916) 875-6470 for a list of local firms that may be able to
provide disposal and/or treatment of your wastewater.
WAYS TO COLLECT WASTEWATER:
The following are examples of devices that may be used to contain and collect
wastewater during pressure washing activities. The collection devices described
below are not endorsed and are only provided as a reference tool. In addition, there
may be other containment devices available, which are not listed.
Note: When working with electrical equipment in wet environments, it is important to
understand and comply with applicable health/safety and electrical codes, as well as
utilize appropriate safety equipment (e.g., Ground Fault Interrupters, etc.).
Berms – Berms may be used to prevent wastewater from entering a storm drain by
placing a protective barrier around the storm drain inlet, thus allowing the wastewater
to pool up around the storm drain prior to proper collection and disposal. This type of
containment may be less effective or ineffective when the storm drain is located at the
bottom of a slope and/or a large amount of wastewater is generated.
Storm Drain Covers/Mats – These devices are placed on top of the storm drain cover
grate, creating a quick seal, thus preventing wastewater from entering the storm drain
system. Storm drain covers/mats (magnetic vinyl mats, PVC drain covers,
polyurethane mats, and others) allow wastewater to accumulate on top of it until the
pressure washing activity is complete and the wastewater can be collected for proper
disposal. Storm drain covers/mats are frequently used along with a vacuum device (e.
g. sump pump, wet/dry vacuum, and vacuum pump) that diverts wastewater into the
sanitary sewer system.
Containment Pools – A portable or temporary containment pool is another option
which may be used by pressure washers to collect wastewater. Containment pools
are easy to assemble, provide an immediate work area, and allow the wastewater to
be collected in a manner that will prevent pollutants from entering the storm drains.
Containment pools vary in size and material, and hold anything from a shopping cart
to a truck and trailer.
Vacuums/Pumps – Devices such as wet/dry vacuums, sump pumps, and vacuum
pumps may be used to collect wastewater after pressure washing. Vacuum devices
typically have an extension (vacuum boom) which allows the wastewater to be
collected efficiently. In addition, many vacuum devices are designed with a second
hose (e.g. garden hose) that can run from the pump to the sanitary sewer or a
truck/trailer mounted holding tank, depending on disposal method.
Vacuum Boom – Vacuum booms are an attachment for the vacuum device. The
boom typically rests flush on the ground and draws wastewater through small holes
on the bottom of the boom. In addition, different variations of vacuum booms are
available for areas with steep slopes or rough terrain.
Inflatable Pipe Plug – Inflatable pipe plugs prevent wastewater from entering a storm
drain system by blocking the pipe leading from the drain inlet. Unlike the storm drain
mats/covers that block storm drain grates, the inflatable pipe plug is inserted into the
storm drain pipe and uses the inlet structure beneath the grate to collect the
wastewater. Once inserted, the plug is inflated to make a snug fit. Once the
wastewater has been contained, it can be collected and properly disposed by using a
portable pump device (e.g. sump pump, vacuum pump, etc.). Note: inflatable pipe
plugs should only be used in storm drains on private property. They are not
authorized to be used in public storm drain inlets or pipes.
FOR MORE INFORMATION
Business Environmental Resource Center (BERC)
(916) 364-4110
Clean Water Business Partner Program (Sacramento)
(916) 808-1726
Cleaning Equipment Trade Association (CETA)
(800) 441-0111
City of Citrus Heights Stormwater Management Program
(916) 874-6851
City of Elk Grove Stormwater Management Program
(916) 478-2263
City of Folsom Stormwater Management Program
(916) 351-3545
City of Galt Department of Public Works (Stormwater Management Program and
Sanitary Sewer) (209) 366-7260
City of Isleton
(916) 777-7770
City of Isleton Waste Water Treatment Operator
(209) 530-9910
City of Rancho Cordova Stormwater Management Program
(916) 874-6851
City of Sacramento Stormwater Management Program
(916) 808-8894
Sacramento County Environmental Health Division (EHD)
(916) 875-8440
Sacramento County Hazardous Materials Division (HMD)
(916) 875-8550
Sacramento County Stormwater Management Program
(916) 874-6851
Sacramento County Water Protection Division (WPD)
(916) 875-8400
Sacramento Regional County Sanitation District (SRCSD)
Industrial Waste Section (IWS)
(916) 875-6470
Walnut Grove Sanitation District (916) 776-4051
Power Washers of North America (PWNA ) http://www.pwna.org/
Easy Clean Systems (916) 638-0828
Disclaimer:
The information presented in this document is intended for guidance purposes only
and is not all-inclusive. The information provided may be of value as an educational
or reference tool. However, we do not endorse any content or product that may be
noted in this booklet. Please note that laws and regulations are subject to change. It
is recommended that the applicable codes and statutes be reviewed to verify which
requirements pertain to your business. Although the material contained in this
booklet will be routinely updated as part of a scheduled document review program, it
may not reflect recent changes in the various laws and regulations.
Best Management Practices for Sacramento County California.
Best Management Practices
For Pressure Washing.
Requirements for the disposal of waste and wastewater generated by the use of
pressure washing equipment when generated within the bounds of Sacramento
County. It also provides information on practical methods, known as Best
Management Practices (BMPs), which may be used to protect the environment and to
comply with regulatory requirements.
These requirements and BMPs apply to anyone within Sacramento County who
generates wastewater from pressure washing, including:
contractors that provide a pressure washing service to others
businesses that use pressure washing equipment as part of their
operations or maintenance (such as cleaning heavy equipment)
homeowners
What is Pressure Washing?
Pressure washing uses mechanical equipment to create a high pressure stream of
water, typically ejected from a hand-held wand or nozzle. This jet of water is used for
cleaning a wide variety of surfaces and objects. Depending on the application,
pressure washing may be conducted with or without heated water or added cleaners.
In recent years, the use of pressure washing equipment has grown substantially.
Numerous contractors provide pressure washing as a service to others, businesses
purchase their own units to use in their own operations and maintenance, and many
homeowners rent units or purchase low cost ones.
Pressure washing is used to clean many things, including:
Trucks
Automobile fleets
Parking lots
Building exteriors
Sidewalks
Drive-thrus
Heavy equipment
Roofs
Restaurant equipment and hood filters
Graffiti
Pressure washing equipment is also used for stripping paint or for preparing and
treating other types of surfaces.
The Problem
Most pressure washing activities are conducted outside. This often results in the
discharge of wastewater to the storm drainage system, unless the equipment
operator takes steps to collect and dispose of it legally. Discharge of pressure
washing wastewater to the storm drainage system is prohibited because it contains
pollutants from the cleaning compounds used and/or from the objects or surfaces
being cleaned. Even cleaners labeled “biodegradable†and “non-toxic†may be
harmful to aquatic life, especially after cleaning various surfaces (e.g. dumpster
areas, parking lots, equipment and more) that contain oils, greases, chemicals, and
other substances.
Any substance, including pressure washing wastewater that enters storm drains
flows directly into lakes, rivers, and streams. This water is not treated or cleaned to
remove pollutants. Pollutants discharged to the storm drainage system harm fish and
wildlife and contaminate recreational sites and drinking water supplies.
Regulations
To improve the quality of water we fish and swim in, not to mention drink, Federal and
State regulations prohibit discharges of pollutants to water bodies without a permit.
Because of these regulations, the Cities of Citrus Heights, Elk Grove, Folsom,
Sacramento, Galt, Rancho Cordova, and the County of Sacramento are subject to a
Municipal Storm Water (MS4) Permit issued to them by the State of California. The
MS4 Permit requires local agencies to implement programs to reduce pollutants in
storm water runoff (directly caused by rainfall) and to effectively prohibit non-storm
water discharges.
As required by the MS4 Permit, these local agencies have adopted Storm Water
Ordinances that prohibit non-storm water discharges. The discharge of wastewater
from pressure washing to the storm drainage system or surface waters is prohibited
by these ordinances.
However, preventing discharge to the storm drainage system is only part of the story.
Improper discharges to the sanitary sewer, septic tanks, or land can also cause
environmental harm, damage equipment and facilities, and violate regulations.
Pressure Washing as Part of the Solution
Pressure washing is an activity that can help improve the quality of our waters when
done properly. By cleaning (pressure washing) surfaces (e.g. equipment, parking
lots, sidewalks, buildings, etc.), collecting the wastes (water and/or debris), and
properly disposing of the wastes, there is less chance of pollutants ending up in our
waterways. It is through education, proper collection and disposal that pressure
washing can have a positive impact on the environment!
Clean Water Business Partner Program (CWBP)
Pressure washers conducting business within Sacramento County are eligible to join
the CWBP (916-808-1726). The CWBP is an incentive-based program that rewards
local pressure washing businesses for promoting clean water awareness and
implementing BMPs such as properly collecting and discharging wastewater into the
sanitary sewer system for proper treatment.
DISPOSAL REQUIREMENTS AND PROHIBITIONS
Proper disposal of pressure washing wastewater, in compliance with environmental
regulations, depends on the nature of the pollutants in it. It is the responsibility of the
generator to determine the proper collection and disposal method for wastewater
created by pressure washing. To avoid unanticipated costs, delays, and violations,
this determination should always be made prior to starting any job.
All disposal methods are subject to requirements, restrictions, and prohibitions, and
are outlined below.
Storm Drains
Discharging pressure washing wastewater, into any natural body of water or
any storm drainage system, which includes storm drains, roadside ditches, and
gutters, and drainage channels, within Sacramento County, is prohibited by Federal,
State, and local laws.
Exceptions to this prohibition must be approved in writing by the local storm
water jurisdiction and the Central Valley Regional Water Quality Control Board.
Evaporation
Pressure washing wastewater that contains visible debris or residue; soap,
detergent or other cleaning agents; or excessive amounts of any pollutant, may not be
left on paved surfaces to evaporate, because the residue will eventually be
discharged to the storm drain.
Land Disposal
Wastewater disposal to land must not create a nuisance condition, flow into the
storm drain, or contaminate soil with hazardous waste.
Wastewater containing garbage, food wastes, or visible trash may not be
discharged to land.
Any wastewater disposal to land must have the approval of the property owner.
Sanitary Sewer
Disposal of pressure washing wastewater to the sanitary sewer within the
Sacramento Regional County Sanitation District (SRCSD) (916-875-6470) must meet
the requirements of SRCSD’s Sewer Use Ordinance and Surface Cleaning
Wastewater policy.
The Sacramento Regional County Sanitation District’s (SRCSD) sanitary sewer
system service area includes the Cities of Citrus Heights, Elk Grove, Folsom, Rancho
Cordova and Sacramento, the urban portions of unincorporated Sacramento County
(including the town of Locke), and in July, 2004 the towns of Courtland, and Walnut
Grove. Pressure washing contractors are required to obtain a permit prior to
discharging to SRCSD’s sanitary sewer system. The type of permit required is
dependent upon whether the wastewater is discharged at a place of business or at
an SRCSD septage site. Contact SRCSD for the Surface Cleaning Wastewater Policy
for more information.
Residential SRCSD customers conducting pressure washing activities at their
home are not required to obtain a permit. However, homeowners are required to
comply with the discharge requirements of the SRCSD Sewer Use Ordinance. Using
the BMPs described in this document will help residential users comply with SRCSD
requirements.
Businesses in the SRCSD service area utilizing a pressure washing
company/contractor that will be disposing of the wastewater into their sanitary sewer
clean-out/inlet are required to have a Sewer Use Questionnaire (SUQ) on file with
SRCSD. Note: property owner permission is required prior to discharging
wastewater into the customer’s sanitary sewer clean-out/inlet.
Discharges to the sanitary sewer within the Isleton, Galt and Walnut Grove
service areas must comply with the requirements of those respective districts: Call:
City of Galt (209) 366-7260, City of Isleton (916) 777-7770, or Walnut Grove (916) 776-
4051(Until July, 2004, then contact SRCSD).
Septic Systems
Discharges of pressure washing wastewater to a septic system anywhere
within Sacramento County must be approved by the County Water Protection Division
(916-875-8440). Discharges that contain hazardous waste, have the potential to harm
septic systems, or are likely to contaminate groundwater, will not be approved.
Hazardous Waste
Beware of pressure washing surfaces that contain lead-based paint, or areas
with freestanding liquids (e.g. oil, solvents, antifreeze, etc.). Pressure washing these
type of surfaces may generate hazardous waste (e.g., lead-based paint chips,
oil/grease, hydrofluoric acid, muriatic acid, etc.). Generating hazardous waste may
dramatically increase your operating costs and limit your disposal options. For more
information on hazardous waste determination call the Sacramento County
Hazardous Materials Division (HMD) at 916-875-8550 or the Business Environmental
Resource Center (BERC) at 916-364-4110.
BEST MANAGEMENT PRACTICES
PLANNING
Prior to beginning pressure washing activities, determine what collection
method you will be using and how you intend to properly dispose of the wastewater
generated from each cleaning activity.
Obtain all necessary permits and authorizations.
Identify the specific location where you will be disposing wastewater (e.g. job-
site sewer clean-out, county septage station, or the sewer clean-out at your place of
business).
Always obtain the property owner’s permission before disposing of wastewater
at a job site (i.e. sanitary sewer clean-out) and remind the business owner to have an
updated Sewer Use Questionnaire submitted to SRCSD.
SURFACE PRE-CLEANING
Consider using dry methods for surface pre-cleaning, such as using absorbents on
small oil spots and sweeping up trash/debris/dirt before wet washing. Pre-cleaning
is an activity that may reduce costs and simplify the wastewater disposal process.
However, you should also be aware of the costs and requirements associated with
disposing of pre-cleaning wastes which may be identified as hazardous waste and
require special management. Note: it is important to remember, when using dry pre-
cleaning methods, be sure to pick up pre-cleaning debris as soon as possible, so
the materials do not have a chance to enter the storm drains. For more information
call HMD at (916) 875-8550 or BERC at (916) 364-4110.
PRESSURE WASHING
Minimize the amount of water used during pressure washing activities, thus reducing
the volume of wastewater that needs to be properly disposed.
Avoid using cleaning products that contain hazardous substances (e.g.,
hydrofluoric acid, muriatic acid, sodium hydroxide, bleach, etc.) and can turn
wastewater into hazardous waste.
Acidic, caustic, and detergent cleaners may damage paved or coated surfaces.
Once most of the wastewater has been collected and properly disposed,
minimal residual amounts of wastewater that can not be collected and that will not
reach storm drains may be left on paved surfaces and allowed to evaporate. Note: It
may be necessary to sweep, or rinse and collect the wastewater from the area, to
avoid leaving behind visible residue that will be washed into the storm drain at a later
time.
Wastewater with high pollutant concentrations, including wastewater that
contains cleaning compounds, must be completely collected and may not be left to
evaporate.
WASTEWATER COLLECTION
Identify where all area storm drains are situated.
Locate property high and low-spots and determine the area where wastewater
can be pooled for collection. If a storm drain is located in the collection area, ensure
that the path to the drain is blocked or that a cover is tightly sealed over the drain
before allowing wastewater to collect in this area. Drainage swales may sometimes
be used to collect water before it enters a storm drain.
Common equipment used for containing and collecting wastewater generated
during pressure washing activities include: vacuum pumps, booms/berms, portable
containment areas, weighted storm drain covers, inflatable plumber’s plugs, oil/water
separators, holding tanks, portable sump pumps, hoses, absorbents, and more.
Avoid mixing non-hazardous wastewater with wastewater known to contain
hazardous levels of pollutants. This may increase the volume of waste and require
complicated treatment and/or disposal as a hazardous waste, thus increasing
disposal costs.
Place an oil-absorbent mat/pad on top of collected wastewater to help reduce
the amount of oil re-deposited on the surface of the collection area.
Once wastewater has been collected and/or discharged to the sanitary sewer
system, visible solids remaining in the collection area must be swept up to prevent
subsequent discharge to the storm drain. Alternatively, the collection area may be
rinsed, provided that any nearby drains are still covered or blocked, and the rinse
water is properly discharged to the sanitary sewer.
WASTEWATER DISPOSAL
All wastewater discharged into the sanitary sewer must meet the requirements of the
local sanitary sewer district (Galt, Isleton, SRCSD, or Walnut Grove (until July 2004 –
SRCSD after that date)) and often includes obtaining pre-approval prior to disposal.
Discharges within the SRCSD service area
Within the SRCSD service area, any pressure washing contractor discharging to the
sanitary sewer must have a permit issued by SRCSD. Most of the contiguous urban
area of Sacramento County, including unincorporated areas and all of the
incorporated cities of Citrus Heights, Elk Grove, Folsom, Rancho Cordova and
Sacramento are served by SRCSD.
The following activities in the SRCSD service area require a permit for pressure
washing contractors, however, they do not require pre-approval prior to each
discharge into the sanitary sewer system.
• Transportation related cleaning - washing fleet vehicle exteriors, mobile auto
detailing, and rinsing of automobiles, recreational vehicles (RV), and boats at retail
dealerships
• Surface related cleaning - sidewalks, plazas, driveways, parking garages,
service stations, and building exteriors and walls
• Food service related cleaning - restaurant alleys, grocery dumpster areas,
restaurant floor mats, exhaust filters, grease filters, lunch wagons (non-engine), and
food carts
Refer to SRCSD’s Surface Cleaning Wastewater Policy for specific requirements.
Other types of permitted wastewater discharges may be acceptable for disposal into
the sewer system, however pre-approval must be obtained by SRCSD prior to each
discharge. The following pressure washing activities require SRCSD pre-approval.
• Engine/equipment degreasing - wastewater must be treated with a
sand/oil/water separator or an equivalent level of treatment prior to discharge
• Acid cleaning - unpainted vehicles, equipment, structures, or containers
• Other activities not listed (Excluding Transportation, Surface, and Food Service
related cleaning)
Contact SRCSD for pre-approval authorization prior to each sewer discharge.
Approvals will be considered on a case-by-case basis.
Sewer Disposal Options
Disposal options for non-hazardous pressure washing wastewater include:
• Collecting and discharging wastewater into the sanitary sewer via the sanitary
sewer clean-out or sanitary sewer inlet at the point of generation (job site). This
activity must be conducted in accordance with SRCSD’s Surface Cleaning
Wastewater Policy and may require some form of pretreatment, depending on the
nature of the wastewater. In addition, this disposal method must be approved by the
property owner(s) prior to discharge.
• Collecting and transporting wastewater in a holding tank for proper sewer
system disposal at an off-site SRCSD septage site provided that 1) it is conducted in
accordance with SRCSD policies, and 2) a permit is obtained from SRCSD prior to
discharge.
• Collecting and discharging wastewater into the sanitary sewer at the pressure
washer’s place of business using the sewer clean out. Note: make sure to submit a
SUQ to SRCSD if you discharge pressure washing wastewater to the sanitary sewer
at your place of business.
• Obtain permission from the property owner for any type of discharge to the
sanitary sewer and make sure wastewater meets SRCSD guidelines and/or is
approved by an authorizing agency prior to seeking the property owner’s permission.
Sewer Discharges outside of the SRCSD but within Sacramento County
Contact the appropriate district: Galt at (209) 366-7260; Isleton at (916) 777-7770; or
Walnut Grove at (916) 776-4051 (until July 2004 at which time Walnut Grove will be
annexed into SRCSD).
Land Disposal
Wastewater may be collected and discharged or directed onto landscaped and/or dirt
areas only when the wastewater does not contain contaminants (i.e. solvents,
cleaners, oils, metals, etc.) that may constitute a hazardous waste, food products, or
create a nuisance condition. In addition, such discharges must soak into the ground
and may not flow into the storm drain. Make sure to obtain permission from the
property owner prior to discharging or diverting wastewater to landscapes and/or dirt
areas.
If you are diverting wastewater to landscaped areas, avoid damage to plants and soil
by minimizing or eliminating the use of soaps, detergents, and chemicals. Filter out
any solids that would be visible on the ground after discharge. In addition, minimize
the use of water to avoid wastewater overflowing from these areas. Note: Repeated
discharges to landscaped areas may result in an accumulation of contaminants, thus
damaging vegetation and increasing contaminant levels in the soil.
WASTEWATER TREATMENT
If you operate or are considering using a wastewater recycling or pretreatment unit (e.
g. oil/water separator), make sure you understand the waste streams that are
generated. Identify proper disposal methods for these wastes, and consider
disposal costs before starting a job. Some units, especially those that separate oil
from water, may generate hazardous waste (e.g. waste oil) and require special
storage and handling practices.
Consider contracting with a company that can provide appropriate treatment and
disposal of your wastes. This may save you time and money associated with
purchasing, permitting, and using your own wastewater treatment equipment. In
some cases, you may be able to reduce the liability that comes with the generation
and disposal of hazardous waste. For discharges within SRCSD, contact the
Industrial Waste Section at (916) 875-6470 for a list of local firms that may be able to
provide disposal and/or treatment of your wastewater.
WAYS TO COLLECT WASTEWATER:
The following are examples of devices that may be used to contain and collect
wastewater during pressure washing activities. The collection devices described
below are not endorsed and are only provided as a reference tool. In addition, there
may be other containment devices available, which are not listed.
Note: When working with electrical equipment in wet environments, it is important to
understand and comply with applicable health/safety and electrical codes, as well as
utilize appropriate safety equipment (e.g., Ground Fault Interrupters, etc.).
Berms – Berms may be used to prevent wastewater from entering a storm drain by
placing a protective barrier around the storm drain inlet, thus allowing the wastewater
to pool up around the storm drain prior to proper collection and disposal. This type of
containment may be less effective or ineffective when the storm drain is located at the
bottom of a slope and/or a large amount of wastewater is generated.
Storm Drain Covers/Mats – These devices are placed on top of the storm drain cover
grate, creating a quick seal, thus preventing wastewater from entering the storm drain
system. Storm drain covers/mats (magnetic vinyl mats, PVC drain covers,
polyurethane mats, and others) allow wastewater to accumulate on top of it until the
pressure washing activity is complete and the wastewater can be collected for proper
disposal. Storm drain covers/mats are frequently used along with a vacuum device (e.
g. sump pump, wet/dry vacuum, and vacuum pump) that diverts wastewater into the
sanitary sewer system.
Containment Pools – A portable or temporary containment pool is another option
which may be used by pressure washers to collect wastewater. Containment pools
are easy to assemble, provide an immediate work area, and allow the wastewater to
be collected in a manner that will prevent pollutants from entering the storm drains.
Containment pools vary in size and material, and hold anything from a shopping cart
to a truck and trailer.
Vacuums/Pumps – Devices such as wet/dry vacuums, sump pumps, and vacuum
pumps may be used to collect wastewater after pressure washing. Vacuum devices
typically have an extension (vacuum boom) which allows the wastewater to be
collected efficiently. In addition, many vacuum devices are designed with a second
hose (e.g. garden hose) that can run from the pump to the sanitary sewer or a
truck/trailer mounted holding tank, depending on disposal method.
Vacuum Boom – Vacuum booms are an attachment for the vacuum device. The
boom typically rests flush on the ground and draws wastewater through small holes
on the bottom of the boom. In addition, different variations of vacuum booms are
available for areas with steep slopes or rough terrain.
Inflatable Pipe Plug – Inflatable pipe plugs prevent wastewater from entering a storm
drain system by blocking the pipe leading from the drain inlet. Unlike the storm drain
mats/covers that block storm drain grates, the inflatable pipe plug is inserted into the
storm drain pipe and uses the inlet structure beneath the grate to collect the
wastewater. Once inserted, the plug is inflated to make a snug fit. Once the
wastewater has been contained, it can be collected and properly disposed by using a
portable pump device (e.g. sump pump, vacuum pump, etc.). Note: inflatable pipe
plugs should only be used in storm drains on private property. They are not
authorized to be used in public storm drain inlets or pipes.
FOR MORE INFORMATION
Business Environmental Resource Center (BERC)
(916) 364-4110
Clean Water Business Partner Program (Sacramento)
(916) 808-1726
Cleaning Equipment Trade Association (CETA)
(800) 441-0111
City of Citrus Heights Stormwater Management Program
(916) 874-6851
City of Elk Grove Stormwater Management Program
(916) 478-2263
City of Folsom Stormwater Management Program
(916) 351-3545
City of Galt Department of Public Works (Stormwater Management Program and
Sanitary Sewer) (209) 366-7260
City of Isleton
(916) 777-7770
City of Isleton Waste Water Treatment Operator
(209) 530-9910
City of Rancho Cordova Stormwater Management Program
(916) 874-6851
City of Sacramento Stormwater Management Program
(916) 808-8894
Sacramento County Environmental Health Division (EHD)
(916) 875-8440
Sacramento County Hazardous Materials Division (HMD)
(916) 875-8550
Sacramento County Stormwater Management Program
(916) 874-6851
Sacramento County Water Protection Division (WPD)
(916) 875-8400
Sacramento Regional County Sanitation District (SRCSD)
Industrial Waste Section (IWS)
(916) 875-6470
Walnut Grove Sanitation District (916) 776-4051
Power Washers of North America (PWNA ) http://www.pwna.org/
Easy Clean Systems (916) 638-0828
Disclaimer:
The information presented in this document is intended for guidance purposes only
and is not all-inclusive. The information provided may be of value as an educational
or reference tool. However, we do not endorse any content or product that may be
noted in this booklet. Please note that laws and regulations are subject to change. It
is recommended that the applicable codes and statutes be reviewed to verify which
requirements pertain to your business. Although the material contained in this
booklet will be routinely updated as part of a scheduled document review program, it
may not reflect recent changes in the various laws and regulations.
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Makes a lot of difference whether you're in a rural area or a metro area. Some small towns & counties have absolutely no regs regarding this, or they simply don't enforce them.
But watch out for the federal guys! The regs are in place, and they WILL enforce them, but they can't be everywhere. They may be in your neighborhood tomorrow. You never know. If they catch you, you will be screwed. Best to find out what the regs are, and start complying now. When everyone else gets busted, you'll be the only one left in business. Git 'er done!
Randy
But watch out for the federal guys! The regs are in place, and they WILL enforce them, but they can't be everywhere. They may be in your neighborhood tomorrow. You never know. If they catch you, you will be screwed. Best to find out what the regs are, and start complying now. When everyone else gets busted, you'll be the only one left in business. Git 'er done!
Randy