Adopted Orders/Permits
Our adopted orders include the Individual and General National Pollutant Discharge Elimination System (NPDES) Permits and Waste Discharge Requirements (WDRs)
The General National Pollutant Discharge Elimination System (NPDES) Permits and Waste Discharge Requirements(WDRs) are listed below. To view information about specific permitees (both individual and general), please see the following two links:
- Order No. R4-2019-0052 Note: This Order was adopted on May 9, 2019
- Order No. R4-2009-0068 Note: This Order replaced Order No. R4-2004-0109
- Attachment A
- Attachment B
- Attachment C - NOI Form and Instructions
- Attachment D
- Attachment G
- Order No. R4-2024-0181 Note: This Order was adopted on April 25, 2024
- Order No. R4-2018-0086 Note: This Order replaced Order No. R4-2013-0042
- Order No. R4-2013-0042 Note: This Order replaced Order No. R4-2007-0021
- Attachment B (Waterbody Limits)
- Attachment C (NOI and Instructions)
- Attachment D (Standard Provisions)
- Attachment E (Screening Levels)
- Attachment F (Fact Sheet)
- Order No. R4-2024-0145 Note: This Order was adopted on February 22, 2024
- Order No. R4-2018-0087 Note: This Order replaced Order No. R4-2013-0043
- Order No. R4-2013-0043 Note: This Order replaced Order No. R4-2007-0022
- Order No. R4-2014-0060 Note: This Order replaced Order No. R4-2009-0047
- Order No. R4-2009-0047 Note: This Order replaced Order No. R4-2004-0058
- Order No. R4-2023-0429 Note: This Order was adopted on December 21, 2023; Replaced Order No. R4-2018-0125
- Order No. R4-2018-0125 Note: This Order replaced Order No. R4-2013-0095
- Order No. R4-2013-0095 Note: This Order replaced Order No. R4-2008-0032
- Order No. R4-2008-0032
Note: This Order replaced Order No. R4-2003-0111
- Order No. R4-2003-0111 Note: This Order replaced Order No. 97-043 and Order No. 97-045
- Order No. R4-2020-0085 Note: This Order replaced Order No. 2014-0141
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Order No. R4-2023-0180
Note: This Order was adopted on May 25, 2023
