Irrigated Lands Regulatory Program
Water Quality Coalition Submittals & Reviews
Kern River Watershed Coalition Authority (Kern River)
Kern River Submittals & Reviews
The Central Valley Water Board adopted Waste Discharge Requirements General Order (Order) for the Kern River Watershed Coalition Authority 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 - Kern River
- Surface Water Monitoring Plans and Reviews
- Surface Water Quality Management Plans
A Surface Water Quality Management Plan (SQMP) must be developed by the third-party for where: (1) an applicable water quality objective or applicable water quality trigger limit is exceeded twice in a three year period for the same constituent at a monitoring location; (2) the Basin Plan requires development of a surface water quality management plan for a constituent or constituents discharged by irrigated agriculture, or (3) the Executive Officer determines that irrigated agriculture may be causing or contributing to a trend of degradation of surface water that may threaten applicable Basin Plan beneficial uses.
- Surface Water Sediment Discharge and Erosion Assessment Reports (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.
- Conditional Approval of the Sediment Discharge and Erosion Assessment Report
- Sediment Discharge and Erosion Assessment Report (February 2015)
Ground Water - Kern River
- 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.
- Comprehensive 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.
- Comprehensive Groundwater Quality Management Plan
- Comments Received:
- 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) (1 July 2017)
- Phase II Groundwater Quality Trend Monitoring Workplan (GQTMP) (16 May 2018)
- Phase II Groundwater Quality Trend Monitoring Workplan Addendum (31 July 2018)
- Phase II Groundwater Quality Trend Monitoring Workplan Addendum 2.0 (23 January 2019)