New York Sea Grant's
Marina Pollution Prevention Web Site
Section 1: Mechanical Activities
Potential Environmental Impacts
The waste fluids generated when decommissioning engines on the
upland, if not properly managed, can potentially enter the water
in stormwater runoff. Contact with the fluids can harm fish and
other marine and aquatic life. If certain fluids are mixed, they
may become subject to hazardous waste requirements and be more
expensive to dispose. Waste fluids from commissioning engines
may include engine oil, gasoline, diesel fuel and antifreeze.
Best Management Practices
- Use propylene
glycol antifreeze to winterize all systems except "closed,"
or freshwater cooling systems. Propylene glycol antifreeze is
much less toxic than ethylene glycol antifreeze. Use the minimum
amount of antifreeze necessary for the job.
- Where appropriate,
add stabilizers to fuel to protect engines against corrosion and
the formation of sludge, gum, and varnish. Stabilizers are available
for gasoline and diesel fuels, and for crankcase oil. This also
eliminates the problem of stale fuel disposal in the spring. Check
manufacturer's warranty on engine before adding fuel stabilizers.
hazardous waste programs may accept unwanted gasoline and gas/oil
blends generated by individual boat owners. Encourage marina patrons
to dispose of their waste gasoline through their own municipal
household hazardous waste collection programs, if appropriate.
- Waste gasoline
is not considered a hazardous waste if it is recycled or burned
as a fuel. Waste gasoline should be stored in properly grounded,
labeled and closed containers on an impermeable surface with spill
- If stale
gasoline cannot be reconditioned, dispose of it as hazardous waste
[40 CFR 262.11] click
here. For more information on New York's Hazardous
Waste Regulations and storage requirements, click
- If there
is a stormwater discharge from your facility and you perform any
outdoor vessel maintenance or repair, including commissioning
or decommissioning engines, you may have to register for a General
Permit for the Discharge of Storm Water Associated with Industrial
Activity ("Storm Water General Permit"). For more information
on storm water permitting in New York, click
- If doing
an oil change, see "Oil Changes,"
- See "Antifreeze"
to determine how to handle, store and dispose of antifreeze used
to winterize engines.
- Manage soiled
rags as described in "Rags" click
- Store batteries
as described in "Battery Replacement" click