An Act amending the act of October 4, 1978 (P.L.864, No.167), known as the Storm Water Management Act, further providing for powers and duties of the Department of Environmental Resources; and making editorial changes.

HB 958 amends Pennsylvania's 1978 Storm Water Management Act to update the Department of Environmental Resources to the Department of Environmental Protection and clarify its responsibilities. The bill requires the department to provide technical assistance to local governments for implementing storm water plans and conduct annual water quality testing of surface waters, with backup options for testing if resources are limited. It also streamlines the approval process for watershed storm water plans and clarifies grant eligibility for municipalities and counties to cover storm water management costs. These changes directly affect local governments, small storm sewer systems, and the state environmental department in managing storm water infrastructure and water quality.