Establishes a presumption of compliance for industrial entities under Washington's industrial stormwater general permit.

This bill establishes a presumption of compliance for entities covered under Washington's industrial stormwater general permit, provided they are in full compliance with permit conditions and implementing stormwater best management practices. The presumption applies unless discharge monitoring data or other site-specific information shows a discharge causes or contributes to a violation of water quality standards.

Establishes a presumption of compliance for industrial entities under Washington's industrial stormwater general permit.

This bill establishes a presumption of compliance for entities covered under Washington's industrial stormwater general permit, provided they are in full compliance with permit conditions and implementing stormwater best management practices. The presumption applies unless discharge monitoring data or other site-specific information shows a discharge causes or contributes to a violation of water quality standards.