The town of Marana is regulated under the Arizona Pollutant Discharge Elimination System (AZPDES) program. The Arizona Department of Environmental Quality (ADEQ) administers the program and has defined six minimum control measures for compliance.
The Town has prepared a Stormwater Management Plan (SWMP) that has been adopted by the Town Council. The overall goal of the SWMP is to reduce pollutants to the maximum extent practicable within stormwater runoff.