An environmental group that tracks water quality says the latest report is further evidence that stricter regulations on farmers are needed. Meanwhile, a local farm group insists that more vigilant testing in the past four years has uncovered pesticide residue that previously would have gone undetected.
The Central Valley Regional Water Quality Control Board allows farms to send runoff into waterways while cities and industry must apply for pollution discharge permits. In 2003, the state took a step toward stricter regulation by requiring agricultural watershed groups to test water and report the results in lieu of pollution discharge permits.
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