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MOBILE CLEANING What’s the problem? Allowing polluted pressure washing waste water to enter the storm system is illegal. Wash water off of parking lots can contain oil, grease, soap, and toxic chemicals. You need to prevent polluted water from leaving the site and enter- ing storm drains. Water that enters a storm drain is not treated or cleaned before entering our rivers. Public Works Department For more information go to: kalispell.com/465/Stormwater 1 3 4 2 Plan and Prep Locate storm drains—no wash water can enter storm drains Pre-clean or dry clean the area to reduce waste water that needs special handling Clean spills and sweep beforehand Contain Determine where water will pool for collection Protect/block storm drains Contain wash water may be done with booms/berms, portable con- tainment areas, holding tanks, etc. Collect Collect waste wash water from containment Collection may be done with a wet vacuum, sump pump, vacuum pump, etc. Dispose Dispose of wash water properly Check with wastewater treatment plant and property owner for disposal in sanitary sewer If no chemicals or detergents were used and the water does not contain pollutants, then wash water may be directed to nearby landscaping Photo by Steve Muller