The Public Works Department oversees industrial users to keep inappropriate materials out of the sewer system. The pretreatment program inspectors help ensure commercial storm water drainage facilities meet high standards for safety and environmental protection.
Since 1997, The Boise Public Works Department has administered the stormwater program. Among other MS4 permit requirements, such as developing a drainage control program, Boise City is required to provide stormwater education and outreach to residents within Boise city limits.
The Department also works to protect the main source of drinking water for the community as well as other uses of ground water, like industrial processing water or surface water that is linked to ground water.