Irrigated Land Regulatory Program
Water Quality Coalition Submittals & Reviews
Westlands Water Quality Coalition (Westlands)
Westlands Submittals & Reviews
The Central Valley Water Board adopted Waste Discharge Requirements General Order (Order) for the Westlands Water Quality Coalition on 9 January 2014 (Revised on 5 February 2015 - Coming Soon!). The concept of higher and lower vulnerability areas was integrated into the Order to allow the board to tailor requirements to applicable waste discharge conditions. To determine what areas are vulnerable to surface water or groundwater impacts due to irrigated agriculture, the third-party representing growers is required to prepare assessment reports.
Surface Water - Westlands
- Surface Water Management Plan and Reviews
- Westlands Water Quality Coalition 2019 Water Year Monitoring Plan Update Addendum (17 October 2018)
- Westlands Water Quality Coalition 2019 Water Year Monitoring Plan Update (1 August 2018)
- Westlands Water Quality Coalition Pesticide Evaluation Protocol Proposal (18 December 2017)
- Westlands Water Quality Coalition Management Plan (21 November 2011)
- Management Plan Archives
- Surface Water Sediment Discharge and Erosion Assessment Report (SDEAR) and Reviews
The goal of the report is to determine which irrigated agricultural areas are subject to erosion and may discharge sediment that may degrade surface waters. The objective of the report is to determine which Member operations are within such areas, and need to develop a Sediment and Erosion Control Plan.
- Surface Water Annual Monitoring Reports (AMR) and Reviews
Ground Water - Westlands
- Groundwater Quality Assessment Report (GAR)
The Groundwater Quality Assessment Report identifies the high vulnerability groundwater areas where a Groundwater Quality Management Plan must be developed and implemented, and where Members must prepare and submit Nitrogen Management Plan Summary Reports to the Coalition.
- Groundwater Quality Management Plan (GQMP)
A Groundwater Quality Management Plan (GQMP) must be developed by the third-party for all high-vulnerability areas identified in the Groundwater Quality Assessment Report (GAR). In lieu of developing of separate GQMPs, the Order allows for the submittal of a comprehensive GQMP along with the GAR.
- Management Practice Evaluation Program (MPEP)
The Management Practice Evaluation Program is intended to determine the effects, if any, irrigated agricultural practices have on first encountered groundwater under different conditions.
- Groundwater Quality Trend Monitoring Workplan (GQTMP)
The overall objectives of groundwater trend monitoring are to determine current water quality conditions of groundwater relevant to irrigated agriculture and develop long-term groundwater quality information that can be used to evaluate the regional effects of irrigated agricultural practices.
- Groundwater Quality Trend Monitoring Workplan (GQTMP) (16 May 2018)