The Power of Information

National Drinking Water Database

Aluminum in California

Aluminum is a metal released from metal refineries and mining operations.

The Most Polluted Communities in California

748 water utilities reported detecting Aluminum in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Aluminum level

RankSystem Population Served Positive test results of total reported tests Average Level
1Del Oro River Island Serv Terr #1
Porterville, CA
9751 of 74285.71 ppb
(0 to 30000 ppb)
2Solis Mobile Home Park
Coachella, CA
241 of 14200 ppb
(4200 ppb)
3Paradise Ranch Mhp C/O Santiago Assoc.
Castaic, CA
2045 of 52408.67 ppb
(123.33 to 8180 ppb)
4Brooktrails Township Csd
Willits, CA
4,0001 of 11300 ppb
(1300 ppb)
5Lake of The Woods Mwc
Frazier Park, CA
6101 of 21166.67 ppb
(0 to 2333.33 ppb)
6Santa Teresa Meadows Water Company
Coyote, CA
686 of 8996.88 ppb
(0 to 5300 ppb)
7Mark West Meadows Mutual Water
Santa Rosa, CA
781 of 3900 ppb
(0 to 2700 ppb)
8Long Canyon Water Company Corp.
Weldon, CA
1971 of 1810 ppb
(810 ppb)
9Cathedral Oaks
Loma Rica, CA
1407 of 7809.86 ppb
(201 to 2680 ppb)
10Fuller Mutual Water Company
Thermal, CA
1001 of 2800 ppb
(0 to 1600 ppb)

Health Based Limits for Aluminum

National Secondary Drinking Water RegulationsA National Secondary Drinking Water Regulation is a non-enforceable guideline regarding contaminants that may cause cosmetic effects (such as taste, odor, or color). Some states choose to adopt them as enforceable standards. Source: U.S. Environmental Protection Agency. 200 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.600 ppb

Violation Summary for Aluminum in California

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in California since 2004

Violation TypeNumber of Violations
Failure to monitor regularly23