Monitoring groundwater conditions is critical to successfully implement SGMA. Monitoring requires knowing the current groundwater conditions and then checking them regularly to see if conditions have changed. It is similar to regular checkups with your doctor to make sure you are in good health or if there are any changes that may cause concern. With the goal of being sustainable by 2040, checking in regularly on the “health” of the groundwater gives the MAGSA Board an indication whether conditions are okay are if adjustments need to be made.
At the June 5 technical update, MAGSA’s technical consultant, Provost & Pritchard, presented information on water quality monitoring, one of the six criteria under SGMA that must be monitored. Research and analysis of water quality data shows MAGSA is currently not subject to any chronic drinking water issues. Based on this analysis of current groundwater conditions, the objective to be sustainable is to maintain the status quo for water quality.
MAGSA will use data provided by GAMA (Groundwater Ambient Monitoring and Assessment Program) to monitor and record groundwater quality on an annual basis. GAMA is an online tool provided by the State Water Resources Control Board. GAMA integrates and displays groundwater quality data from several different sources on an interactive map. Analytical tools and reporting features help users assess groundwater quality and identify potential groundwater issues.
Several contaminants listed by GAMA were identified as being present in various locations within MAGSA but not at levels to cause health concerns. The contaminants include nitrates, 123TCP (trichloropropane), DBCP (1,2-dibromo-3-chloropropane), arsenic, chloride, sodium, manganese, and total dissolved solids. These will be monitored going forward to make sure levels stay within the standards set by the government for drinking water quality.