The Arizona Department of Environmental Quality (ADEQ) is in the process of modifying the existing Arizona Pollutant Discharge Elimination System (AZPDES) General Permits (GPs).  ADEQ is trying to simplify the implementation of the new Arizona Surface Water Protection Program (SWPP) by extending coverage to the state-listed waters within their GPs.

Included in their modification are the Construction General Permit (CGP), Multisector General Permit (MSGP), Mining Multi Sector General Permit (Mining MSGP), De Minimis General Permit (DMGP), Phase II Municipal Separate Storm Sewer System (MS4) General Permit (MS4 GP), and Pesticides General Permit (PGP).

The modification includes language that clarifies existing regulatory requirements for discharges directly to Outstanding Arizona Waters are prohibited will be added to the CGP, DMGP, PGP, and MS4 GP. No other GPs conditions or requirements are changing with the exception of the small MS4 GP and PGP, which are currently being revised as part of reissuance.   Public comment period is open until July 30, 2021.  ADEQs goal is to have the modified permits finalized by mid-August.
     
 With the proposed changes, Earthworks will be working closely with all municipalities, regulating agencies, and clients, current and future, to ensure that they are meeting all the requirements set forth in the modified GPs.  For any guidance, please reach out to us at mail@earthworksenv.com.

AZG202-001 CGP (redline) 
 www.azdeq.gov