Mixed Lettuce

Irrigated Lands Program


April 9, 2020
Notice of extension of public comment period to June 20, 2020 for Ag Order 4.0

February 21, 2020
The Central Coast Water Board has prepared a Draft Environmental Impact Report (EIR) and a Draft Agricultural Order 4.0 for the regulation of waste discharge from irrigated lands throughout the central coast region.

  • An electronic copy of the Draft EIR and Draft Agricultural Order 4.0 can be obtained from the Renewal of Agricultural Order (Ag Order 4.0) website.
  • Written comments are due June 20, 2020 by 11:59 PM and may be submitted via email to AgNOI@waterboards.ca.gov with either “Comments on Draft EIR” or “Comments on Draft Ag Order” in the subject line.


The Central Coast Water Board regulates discharges from irrigated agricultural lands to protect surface water and groundwater, using a permit called a Conditional Waiver of Waste Discharge Requirements that applies to owners and operators of irrigated land used for commercial crop production. The Central Coast Water Board is focusing on priority water quality issues, such as pesticides and toxicity, nutrients, and sediments – especially nitrate impacts to drinking water sources. Staff is prioritizing efforts in the major agricultural areas of the region - the Salinas River, Santa Maria, and Pajaro River watersheds.

Subscribe to our Agricultural Discharges email list to receive notifications and the latest updates. After subscribing, you will need to check your email host for a confirmation email to complete the subscription.

Email Address: (required)
Your Full Name: (required)
(e.g. John Smith)

  Subscribe to our other email lists. See the "RB3 Central Coastsection.

Facts and Information