State onsite rules proposed in California would require agencies to test for nitrate entering the groundwater, but officials from agencies that issue system permits contend they already test, and that studies to monitor nitrate show the levels are safe.
County health departments test water quality for nitrate when new wells are drilled, and many water utilities annually sample wells for nitrate, according to agency reports. Utility officials say average nitrate levels are within state drinking water standards. County officials say focusing on additional monitoring would cost the equivalent of five full-time positions.
The Central Coast Regional Water Quality Control Board proposed amendments
