Irrigated Lands Regulatory Program
Water Quality Coalition Submittals & Reviews
Westside Water Quality Coalition (Westside)

Westside Submittals & Reviews

The Central Valley Water Board adopted Waste Discharge Requirements General Order (Order) for the Westside Water Quality Coalition on 19 September 2013 (Revised on 4 December 2014). 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 - Westside

Ground Water - Westside

  • 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.
  • Basin Plan Amendment Work Plan (BPAW)
    In its Groundwater Quality Assessment Report, the third-party may identify high vulnerability areas that do not meet water quality objectives and where groundwater quality likely would not support a designated beneficial use even in the absence of the discharge of waste. In such cases, the third-party has the option of pursuing a basin plan amendment (or identifying an existing basin plan amendment process) to address the appropriateness of the beneficial use.