At the September 5th Board Meeting, McMullin Area GSA (MAGSA) technical consultant Lynn Groundwater, Provost & Pritchard, discussed the agency’s efficient approach to SGMA-mandated water quality management. The State measures sustainability using six sustainability indicators that when managed appropriately, should avoid “undesirable results”. Significant and unreasonable degraded water quality is included under SGMA as one of the six undesirable results. MAGSA plans to utilize the water quality monitoring efforts of existing regional programs including the Irrigated Lands Regulatory Program (ILRP) and the County of Fresno’s Rural Domestic Well Groundwater Quality program.
Under ILRP, this fall 2018 the Kings River Water Quality Coalition will begin sampling groundwater monitoring wells for water quality indicators; designated constituent wells will be monitored annually for Nitrates, EC, DO, pH, and temperature, and every five years for additional indicators such as minerals. Additional sampling data compiled by Fresno County upon installation of new or deepened domestic wells will provide the GSA insight into potential presence of water quality contaminants such as Total Coliform Bacteria or E Coli Bacteria.
The Central Valley Regional Water Quality Control Board oil field program is another potential resource for water quality information. The program addresses issues that arise with unlined ponds used to dispose water that is produced as a byproduct of oil and natural gas, a risk to groundwater quality.
The cooperative approach will inform MAGSA’s management decisions to prevent degraded water quality, without unduly repeating regional monitoring efforts.