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Clean Water Act, Section 401 and Porter Cologne Act, California Water Code Section 13000 et. Seq.
Required prior to USACE issuing a Department of the Amy Permit for discharge activities under Section 404. Section 401 requires the State Water Board to certify that the proposed discharge does not violate state water quality standards. Activities that may affect the quality of the waters of the state are addressed through issuance of waste discharge requirements (WDRs) by the State Water Board.
Identify Waters of the US and Waters of the State
Draft and submit water quality certification application to the State Water Resources Control Board or appropriate Regional Board
State Water Board issues certification (401 permit) and/or Waste Discharge Requirement