Excess nitrates contaminate water, prompt closure of Hemet wells

HEMET - An increase in contaminants affecting water supplies in the city of Hemet prompted officials to shut down two wells, it was announced today.

According to the Hemet Department of Public Works, testing showed nitrate levels in the wells had exceeded the state standard by 2 milligrams per liter.

Nitrates can originate from leaks from septic systems, agricultural runoff and other industrial waste. The California Department of Public Health requires that nitrate levels remain at or below 45 milligrams per liter for drinking water to remain safe.

Excessive nitrates are most harmful to infant...