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The Regional Water Board’s Tentative Order for would require Mariposa County Lake Don Pedro Wastewater Treatment Facility to submit an individual, facility-specific Salinity Management Plan. The groundwater in the area is of good quality well below the recommended secondary MCL. In addition, the source water is a combination of very low salinity surface water and low salinity groundwater. CVCWA commented that it does not believe that a Salinity Management Plan is warranted for this facility considering its specific circumstances.