Exterior Cleaning and Power Washing
Before cleaning outdoors, be aware of the impacts that any dislodged pollutants or cleaning products might have on groundwater and surface waters. Avoid using acids and other toxic cleaners. Whenever possible, use plain water. Contact EHSEM with any questions and/or concerns at (3-4914).
Washing With Water
If only water is being used to clean a non-polluted surface, all storm drains must be blocked, or filter fabric or silt sacks must be installed to filter solids from runoff. The fabric or sack must be emptied of collected sediment as needed. It is important to limit sediment from entering catch basins because it can clog lines and lead to localized flooding and high maintenance costs. When work is complete, sediment and other solids that remain on the ground should be cleaned up immediately before they are washed into the storm system.
Washing With Water and Cleaners
- Determine whether or not the job can be completed with the use of plain water.
- If detergents or chemicals are necessary, collect all wash water into appropriate containers.
- Containers must be labeled immediately after waste is added with appropriate contact information and the contents of the container.
- Contact EHSEM for proper disposal at (3-0921).