Irrigated Lands Program Banner

Irrigated Lands Program (ILP)

Welcome to the Irrigated Lands Program (ILP)

The Central Coast Water Board regulates discharges from irrigated agricultural lands to protect surface water and groundwater using Order No. R3-2021-0040, General Waste Discharge Requirements for Discharges from Irrigated Lands (also known as the Agricultural Order), 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.


  • 农业令TNA/INMP报告讲解会 2024年2月
  • 位于地下水阶段2和阶段3区域的农场,总施氮量(TNA)报告的提交截止期限为2024年3月1日。TNA报告视频教程
  • 位于地下水阶段1区域的农场,灌溉和养分管理计划(INMP)总结报告的提交截止期限为2024年3月1日。INMP报告指南(即将发布)、INMP报告视频教程(即将发布)
  • 所有农场的《年度合规表》(ACF)的提交截止期限为2024年3月1日。ACF报告(即将发布)

More Announcements...

  Stay Informed

Email Subscription List

To receive updates on the Irrigated Lands Program, subscribe to the Irrigated Lands Program email list.

Contact Us

  Facts and Information

Irrigated Lands Program FAQs:

The central coast region represents about:

  • 7.2 million acres of land
  • 540,000 acres irrigated land
  • 3,000 agricultural operations
  • 17,000 miles of surface waters (linear streams/rivers)
  • 4,000 square miles of groundwater basins
  • 86% of water supply derived from groundwater (most dependent out of all nine hydrologic regions in the state)