Irrigated Lands Regulatory Program (ILRP)
The ILRP was initiated to prevent agricultural runoff from impairing surface waters, and later included the addition of groundwater regulations. Runoff from irrigated crop lands can contain pollutants, such as pesticides, fertilizers, salts, and sediment, which can harm aquatic life or make water unusable for human consumption. It is a program that issues permits – Waste Discharge Requirements (WDRs) - and conducts compliance activities, to ensure growers adhere to Central Valley Water Board regulations. Waste discharge requirements (WDRs) address irrigated agricultural discharges to protect water quality.
News & Notices
- Stakeholder Meetings – Next Meeting – 2027, to be announced
The Central Valley Water Board is inviting the public and other stakeholders to submit written comments on the below submittals:
| Coalition Area | Submittal Title | Public Comment Period | Contact |
|---|---|---|---|
| Tule Basin Water Quality Coalition | Groundwater Quality Assessment Report: 5-Year Update | Comments must be received by 5:00pm on 23 October 2026 | To request a copy of the submittal or submit comments, please contact Mary Church at Mary.Church@waterboards.ca.gov or (559) 445-5577. Written comments can also be mailed to the following address: Central Valley Regional Water Quality Control Board Attn: Mary Church 1685 E Street Fresno CA 93706 |
| Sacramento Valley Water Quality Coalition | 2026 Groundwater High Vulnerability Area: 5-Year Update | Comments must be received by 5:00 pm on 26 October 2026 | To request a copy of the submittal or submit comments, please contact Petra Lee at Petra.Lee@waterboards.ca.gov or (916) 464-4604. Written comments can also be mailed to the following address: Central Valley Regional Water Quality Control Board Attn: Petra Lee 11020 Sun Center Drive, #200 Rancho Cordova, CA 95670 |
Email Subscription List
Subscribe to the Irrigated Lands Regulatory Program email list to received notifications and updates.
Contact Us
- Program Contacts
- Web page problems: Webmaster5@waterboards.ca.gov
Facts & Information
- Does my property need coverage under the ILRP?
- Outreach Brochures
- ILRP Frequently Asked Questions (FAQ)
- ILRP Success Stories
- Program Videos (Videos open in YouTube)
- Expert Review of ESJ Surface Water Monitoring (opens SCCWRP website)
- State Water Board's ILRP (opens SWRCB website)
