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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 groundwater.
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.
Whenever 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 parts.
For painting practices, clean spray guns in a self-contained cleaner. Recycle cleaning solution. Never discharge waste to the sewer or storm drain.
 
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.
Whenever possible,
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 surface area.