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
- Order No. R4-2019-0024
General Waste Discharge Requirements for Advanced Onsite Wastewater Treatment Systems
Note: This Order was adopted on February 14, 2019- Attachment A - Report of Waste Discharge (RoWD) - Form 200
- Attachment B - Information Sheet
- Attachment C - Maximum Contaminant Level
- Attachment D - Monitoring and Reporting Program
- Attachment E - Standard Provisions Applicable to Waste Discharge Requirements
- Attachment F - Monitoring for Constituents of Emerging Concern (CECs)
- Attachment G - Monitoring for Priority Pollutants
- Order No. 2014-0153-DWQ
General Waste Discharge Requirements for Small Domestic Wastewater Treatment Systems
Note: This Order was adopted on September 23, 2014
- General Waste Discharge Requirements for In-Situ Groundwater Remediation and Groundwater Re-Injection
Note: This Order was adopted on September 11, 2014 - Attachment A-Supporting Documents (Not Part of the WDRs) Please Contact UST staff for Documents
- Resolution R14-008
Approving the Environmental Checklist and Adopting a Mitigated Negative Declaration for General Waste Discharge Requirements for In-Situ Groundwater Remediation and Groundwater Re-Injection
Note: This Resolution was adopted on September 11, 2014
- Resolution No. R11-010
MOU regarding Phased Implementation of Basin Plan Amendment Prohibiting On-Site Wastewater Disposal Systems in the Malibu Civic Center Area.
Order No. R4-2009-0049
General WDRs and Water Recycling Requirements for Title 22 Recycled Water for Non-Irrigation Uses over the Groundwater Basins underlying the Coastal Watersheds of Los Angeles and Ventura Counties.
General WDRs and Water Recycling Requirements for Title 22 Recycled Water for Non-Irrigation Uses over the Groundwater Basins underlying the Coastal Watersheds of Los Angeles and Ventura Counties.
- Attachment A - Definitions
- Attachment B - Water Recycling Criteria
- Attachment C - Monitoring and Reporting Program
- Attachment D - Notice of Intent
- Attachment E - BMPs of Additional Site Specific Requirements
Order No. R4-2008-0083
Water Recycling Requirements and Waste Discharge Requirements for Groundwater Enhancement and Treatment Program- Non potable Reuse (posted Mar 25, 2010)
Water Recycling Requirements and Waste Discharge Requirements for Groundwater Enhancement and Treatment Program- Non potable Reuse (posted Mar 25, 2010)
Order No. R4-2007-0019 and Resolution No. R07-001
Groundwater Remediation At Petroleum Hydrocarbon Fuel, Volatile Organic Compound And/Or Hexavalent Chromium Impacted Sites.
(posted March 6, 2007)
(Note: This Order replaced Order No. R4-2005--0030, and Order No. R4-2002-0030)
Groundwater Remediation At Petroleum Hydrocarbon Fuel, Volatile Organic Compound And/Or Hexavalent Chromium Impacted Sites.
(posted March 6, 2007)
(Note: This Order replaced Order No. R4-2005--0030, and Order No. R4-2002-0030)
Order No. R4-2004-0146
Waste Discharge Requirements for Residential Onsite Wastewater Treatment Systems
Waste Discharge Requirements for Residential Onsite Wastewater Treatment Systems
- Attachment A (5 MB - Please be patient when downloading this file)
- Attachment B
- Attachment C
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General Waste Discharge Requirements for Post-Closure Maintenance of Inactive Nonhazardous Waste Landfills
- Attachment 1 - SWAT Technical Gandance Manual (33 MB- Please be patient when downloading this file)
- Attachment 2 - Standard Provisions
Order No. 01-031
Small Commercial and Multifamily Residential Subsurface Sewage Disposal Systems
Small Commercial and Multifamily Residential Subsurface Sewage Disposal Systems
Order No. 93-010
Specified Discharges to Groundwater in Santa Clara River and Los Angeles River Basins
Specified Discharges to Groundwater in Santa Clara River and Los Angeles River Basins
Order No. 91-94
Private Subsurface Sewage Disposal Systems in Areas Where Ground Water is Used or May Be Used for Domestic Purposes
Private Subsurface Sewage Disposal Systems in Areas Where Ground Water is Used or May Be Used for Domestic Purposes
- Order No. 90-148 General Waste Discharge Requirements for Land Treatment of Petroleum Hydrocarbon Contaminated Soil in Los Angeles and Santa Clara River Basin
