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The focus of today’s working
session is on maintenance garages and storage yards.
I did not make copies of today’s
presentation because it’s really long (with lots of pictures). You can
download the presentation from our web site and the material covered in
today’s session is included in the fact sheets that will be distributed at the
end of the presentation.
Stormwater runoff can become polluted by solvents and dusts
from sanding, grinding,
and painting. These substances can enter our rivers and lakes if this polluted stormwater enters
storm drains or ditches. Paints and solvents can also pollute soil and
When sanding and grinding, always use tarps, containers,
and vacuums to collect
sanding and grinding wastes.
Sweep or vacuum
metal filing, sanding, and grinding areas regularly.
Use dry cleanup methods. Allow wet sanding to dry before
sweeping. Wet sanding
should not be discharged to the storm drain.
possible, collect metal and used parts for recycling.
Avoid sanding in
windy weather. Enclose outdoor sanding areas.
Minimize the use of
degreasers to clean parts. Instead, brush off loose debris and use rags to wipe down
For painting practices, clean spray guns in a
self-contained cleaner. Recycle cleaning solution. Never discharge waste to the sewer or
Used paint, exhaust filters, residue, cleaning solvent may
be hazardous. Handle,
store, and dispose of as a hazardous waste.
Never rinse brushes or
containers into a street, storm drain or water body. Water-based paints can be
rinsed to a sanitary sewer. For oil-based paints, filter and reuse thinners
and solvents. Dispose of thinners and residue as hazardous wastes.
Do not use water to
control paint booth overspray or dust unless it’s collected, treated and discharged into
the sanitary sewer system.
Use less toxic paint such as latex or water-based paints.
Minimize wasted paint and thinner by calculating