- Failed some Health Guidelines
- Failed some Legal Limits
- Met all Reporting and Monitoring Requirements
- Uses Chlorine disinfectant
In 1960 California introduced the State Water Project (SWP) which includes 22 dams and reservoirs, a pumping plant, and a 444-mile-long aqueduct that carries water to southern California from the San Joaquin Valley. The SWP provides irrigation water to farms in the San Joaquin Valley and is a major supply source for Southern California. Thirty percent of California's total annual water supply comes from groundwater, and up to 60 percent in drought years. More than 50% of San Diego's water comes from the Colorado River and 30% is pumped from the Bay-Delta. Local supplies which include surface, groundwater, and recycled water account for only 20% of the regions water demand. In recent years, radioactive elements and potentially carcinogenic disinfectant byproducts have exceeded health guidelines.
San Diego, CA Drinking Water Top Suppliers
|Water Supplier||Water Supply Source||Population Served||Service Connections|
San Diego - City Of
9192 Topaz Way San Diego, CA 92123
San Diego County Water Authority
4677 Overland Ave. San Diego, CA 92123
San Diego, CA Water Quality Recent Violations
There were no health violations for in the 2010-2012 reporting periods
There were no reporting, montioring or other reported violations for in the 2010-2012 reporting periods
San Diego, CA Water Quality Historical Violations
|Contaminant||Total Tests||Positive Results||Above Health Limits||Above Legal Limits||EPA Regulated||Max Result||Health Limit||Legal Limit|
|Total trihalomethanes (TTHMs)||66||66||0||1||Yes||94.70||-||80|
|Combined Uranium (mg/L)||1||1||1||0||Yes||2.80||0.50||30|
|Combined Uranium (pCi/L)||5||5||0||0||Yes||2.85||15||15|
|Gross beta particle activity (pCi/L)||4||2||0||0||Yes||4.75||15||15|
|m- & p- Xylene||14||1||0||0||Yes||1.04||-||10000|
|Nitrate & nitrite||1||1||0||0||Yes||0.48||10||10|
|Total haloacetic acids (HAAs)||57||56||0||0||Yes||46.80||70||60|
|Total trihalomethanes (TTHMs)||10||10||0||0||Yes||44||-||80|
26 Contaminants were detected, 1 above legal limits, 1 above health guidelines, and 24 below limits for water suppliers serving San Diego, CA between 2004 and 2009.
128 Water Contaminants were tested for in the San Diego, CA area but not found in drinking water between 2004 and 2009.
Data Source: NYTimes.com
The scores and results above reflect a summary of the historical drinking water testing results that has been documented by the EPA and other sources. The color coding of the symbols was developed by WaterFilterComparisions.com as an easy way for individuals to gauge the historical effectiveness of San Diego water suppliers in meeting legal and health regulations in providing clean drinking water. This should only be used as a guide, and WaterFilterComparisons recommends you contact San Diego water suppliers to better understand the quality of the drinking water in San Diego, .