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. R4-2014-0141 (CAG994006)
    Discharges of Groundwater From San Gabriel Valley Groundwater Basin to Surface Water in the Upper San Gabriel River and Rio Hondo Watersheds-Los Angeles County
Discharges of Low Threat Hydrostatic Test Water to Surface Waters.
(posted June 23, 2009)
Note: This Order replaced Order No. R4-2004-0109
ORDER NO. R4-2009-0047 (CAG994003) 
Discharges of Nonprocess Waste Water to Surface Waters.
(posted June 23, 2009) 
Note: This Order replaced Order No. R4-2004-0058
ORDER NO. R4-2004-0058 (CAG994003) 
Discharges of Non Process Wastewater to Surface Waters
ORDER NO. R4-2003-0111 (CAG994004) 
Discharges of Groundwater from Construction Dewatering to Surface Waters. (Note: This Order replaced Order No. 97-043, and Order No. 97-045)
ORDER NO. R4-2003-0108 (CAG994005) 
Discharges of Groundwater from Potable Water Supply Wells to Surface Waters
  • Order No. 2014-0153-DWQ 
    General Waste Discharge Requirements for Small Domestic Wastewater Treatment Systems 
    Note: This Order was adopted on September 23, 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.
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)
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)
ORDER NO. R4-2004-0146 
Waste Discharge Requirements for Residential Onsite Wastewater Treatment Systems
ORDER NO. 01-031 
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
ORDER NO. 91-94 
Private Subsurface Sewage Disposal Systems in Areas Where Ground Water is Used or May Be Used for Domestic Purposes
ORDER NO. 91-93 
Non-Hazardous Contaminated Soils and Other Wastes in Los Angeles and Santa Clara River Basins.
  • Order No. 90-148
  • General Waste Discharge Requirements for Land Treatment of Petroleum Hydrocarbon Contaminated Soil in Los Angeles and Santa Clara River Basin