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ECAR
Fact Sheet for
Hawaii
Septic
Tanks and Disposal Wells
Regulations
Self-Audit Checklist
Best Management Practices
Contacts
Related ECAR Fact Sheets
Other Relevant Resources
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The
following fact sheet was prepared by the ECAR Center staff. Once
prepared, each ECAR Center fact sheet undergoes a review process
with the applicable state environmental agency(ies). You can check
on the status of the review process here.
Please read the disclaimer on the status page. While we have tried
to present a summary of the essential information on this topic,
you should be aware that other items, such as local regulations,
may apply to you.
What You Need to Know
There
is a simple rule for determining when it is OK to put industrial
wastewater into a septic system - never. You can dispose of
"sanitary wastes" from ordinary lavatory use or hand washing
in a septic field only if the wastewater has not been contaminated
with any water from an industrial operation.
Some
yards may have shallow wells or cesspools that have been used for
disposal of industrial wastewater. It is now illegal to create
such systems, and existing systems need to be sealed or closed.
This fact sheet will help you check whether your existing wastewater
disposal practices are in compliance with current rules.
Regulations
This
fact sheet explains the regulations applicable to septic tanks or
other forms of disposal wells used at auto recycling facilities
for disposal of vehicle fluids or industrial wastewater. These methods
of disposal are referred to as "motor vehicle waste disposal
wells." They are regulated under federal and state Underground
Injection Control (UIC) regulations that protect drinking water
supplies.
Motor
vehicle waste disposal wells are floor drains or sinks in service
bays that are tied into a shallow disposal system. Most commonly,
these shallow disposal systems are septic systems or dry wells,
but any underground system that receives motor vehicle waste would
be considered a motor vehicle waste disposal well. A variety of
names are used to describe shallow disposal systems including: cesspools,
catch basins, sink holes, underground vaults, or drain tanks, to
name a few.
Automotive
recyclers must adhere to the following federal rules for motor vehicle
waste disposal wells:
- New motor vehicle waste disposal wells are banned nationwide
as of April 5, 2000.
- Existing motor vehicle waste disposal wells are banned
in ground water protection areas and other sensitive ground water
areas.
*In short, spent
parts washer cleaners, both solvents and aqueous cleaners, and other
types of industrial wastewater should never be discharged to a septic
system.
The
only permissible use for septic systems is disposal of sanitary
sewage, which includes the water coming from lavatories/washrooms,
showers, drinking fountains, etc.
Links
to the Regulations and Forms. Use the following links to view the regulations and permit forms pertaining
to septic tanks.
UIC Application for Backfilling an Injection-Well Cesspool
Instructions
Directory of Environmental Businesses in Hawaii, 2000
Federal Rules for
Motor Vehicle Waste Disposal Wells
Class V Well Pre-Closure
Notification Form
Self-Audit
Checklist
When
an inspector comes to your facility, there are certain things he
or she checks to see if you are in compliance with environmental
regulations. It makes good sense for you to perform a "self-audit"
and catch and correct problems before they result in penalties.
Also, there are some compliance incentives associated with self-audits
(see Audit
Policy Page).
Use
the following list to audit your septic tank or underground well.
- Does your facility discharge vehicle fluids or
related industrial wastewater to a septic tank or similar system?
Does a permit authorize the discharges? Check all uses of water and steam within the industrial
areas of your facility. Determine where wastewater is generated
and discharged. You must have a permit or written authorization
for all industrial wastewater discharges. Use of a septic tank
or similar system is not a viable option.
Best
Management Practices (BMPs)
Most
regulations tell you what you have to do to be in compliance, but
they don't explain how to do it. That's where "best management
practices" come into play. BMPs are proven methods that
help you to get into compliance and stay there. The following BMPs
are recommended for septic tank management.
- Check your sinks and floor drains in the shop to make
certain you know where they discharge.
- Cap or plug any floor drains connected to a septic tank.
- Do not put other fluids like oil, solvents, paints or
chemicals into a floor drain. This could contaminate your property
and expose you to large fines and clean up costs.
- Think about installing an emergency shut-off on the
drain pipes to prevent accidental spills from entering the sewer.
- Train employees on the importance of preventing any
vehicle fluids or other industrial wastes from entering a septic
tank or well.
- Post signs at sinks connected to your septic tank system
to remind employees not to discard any wastes into the sink.
Contacts
- For more information, contact the Hawaii Department of Health (DOH),
Solid
and Hazardous Waste Branch, Hazardous
Waste Section at (808) 586-4226.
- To report a spill or leak, or to report an environmental
incident or complaint, call the Hawaii Department of Health Office
of Hazard Evaluation and Emergency Response 24-hour hotline
at 808-247-2191, or 808-586-4249 during regular office hours.
Related
ECAR Fact Sheets
- Floor Drains
- Stormwater
- Wastewater
Other
Relevant Resources
- What
Should I Know About Motor Vehicle Waste Disposal Wells?
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