Irrigated Lands Regulatory Program - Regulatory Information
Adopted Waste Discharge Requirements (WDRs or Orders)
The Central Valley Regional Water Board has adopted waste discharge requirements (WDRs) for discharges from irrigated lands to protect both surface water and groundwater throughout the Central Valley. The Irrigated Lands Regulatory Program (ILRP) regulates such discharges located within the jurisdiction of the Central Valley Water Board, which extends from the Oregon border south to the northernmost tip of Los Angeles County (Region 5). The adopted waste discharge requirements are the product of four years of dialogue among a variety of interested parties, as well as public input received at numerous stakeholder and Central Valley Water Board meetings.
- WDRs for Growers in Coalition Groups:
- WDRs for Individual Growers
Other Regulatory Information
- Stakeholder Meetings
- Program Environmental Impact Report
- Litigation and Petitions
- Answers to Questions on Cost Estimates
- Ex Parte Notices for Irrigated Lands-related Communications - Interested persons who meet with board members must publicly disclose ex parte communication regarding General Waste Discharge Requirements proceedings.