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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.

Agricultural
Order Requirements Compliance
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Upcoming Compliance Dates

  • March 1, 2025: Total Nitrogen Applied (TNA) reporting due
  • March 1, 2025: Irrigation and Nutrient Management Plan (INMP) reporting due
  • March 1 – May 31, 2025: Groundwater Well sampling required for primary irrigation wells, dual use wells, and domestic wells
  • March 1, 2025: Annual Compliance Form (ACF) submission due
  • Review Irrigated Lands Program Requirements Checklists for more information ILP Requirements | Central Coast Regional Water Quality Control Board

Próximas Fechas de Vencimiento de Requisitos

  • 1ro de Marzo, 2025: Fecha de vencimiento del reporte del Total del Nitrógeno Aplicado (TNA)
  • 1ro de Marzo, 2025: Fecha de vencimiento del reporte del Plan de Manejo de Riego y Nutrientes (INMP)
  • 1ro de Marzo – 31 de Mayo, 2025: Período obligatorio del muestreo de pozos de riego, de uso dual (o sea de riego y uso doméstico) y de los pozos de uso doméstico
  • 1ro de Marzo, 2025: Fecha de vencimiento para el envío del Formulario Anual de Cumplimientos (ACF)
  • Para más información revise el listado de los requisitos del Programa de Tierras Irrigadas ILP Requirements | Central Coast Regional Water Quality Control Board

临近的合规日期

  • 2025年3月1日：总施氮量（TNA）报告截止期限
  • 2025年3月1日：灌溉和养分管理计划（INMP）报告截止期限
  • 2025年3月1日至5月31日：需要对主要灌溉井、两用井和家用水井进行地下水井采样
  • 2025年3月1日：年度合规表（ACF）提交截止日期
  • 查看灌溉土地计划（ILP）要求清单，了解更多信息 ILP 要求 | 中央海岸地区水质控制委员会

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  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)

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