National Drinking Water Database
Antimony (total) in California
Antimony is a metal that enters water from petroleum refinery pollution, fire retardants, ceramics, electronics and solder. [read more]
The Most Polluted Communities in California
80 water utilities reported detecting Antimony (total) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Antimony (total) level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Ski West Village Water System Arvin, CA | 30 | 1 of 1 | 8.2 ppb (8.2 ppb) |
| 2 | Owens Peak West Inyokern, CA | 60 | 1 of 2 | 5.5 ppb (0 to 11 ppb) |
| 3 | Bel Air Mobile Estate Stockton, CA | 150 | 1 of 2 | 5.17 ppb (0 to 10.33 ppb) |
| 4 | East Wilson Road Water Company Bakersfield, CA | 35 | 1 of 2 | 5 ppb (0 to 10 ppb) |
| 5 | EL Adobe Poa, Inc. Bakersfield, CA | 200 | 1 of 3 | 4.33 ppb (0 to 13 ppb) |
| 6 | R-Wild Horse Ranch Platina, CA | 500 | 1 of 2 | 4 ppb (0 to 8 ppb) |
| 7 | Cws - Lakeland Lake Isabella, CA | 515 | 16 of 38 | 3.55 ppb (0 to 14 ppb) |
| 8 | Kern Valley Mutual Water Lake Isabella, CA | 34 | 2 of 3 | 3.45 ppb (0 to 8.11 ppb) |
| 9 | DE Rancho Y Mobile Villa Water Bakersfield, CA | 195 | 1 of 2 | 3.25 ppb (0 to 6.5 ppb) |
| 10 | Cws - Upper Bodfish Water System Bodfish, CA | 480 | 17 of 25 | 2.17 ppb (0 to 5.28 ppb) |
Health Based Limits for Antimony (total)
| Standard | Description | Level |
|---|---|---|
| EPA Human Health Water Quality Criteria | Water quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency. | 5.6 ppb |
| Maximum Contaminant Limit (MCL) | The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency. | 6 ppb |
| Maximum Contaminant Limit Goal (MCLG) | A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency. | 6 ppb |
| Lifetime health-based limit, non-cancer risk | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency. | 6 ppb |
| Children's health-based limit for 1-day exposure | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency. | 10 ppb |
| Children's health-based limit for 10-day exposure | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency. | 10 ppb |
| Drinking Water Equivalent Level | A lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency. | 10 ppb |
| California Public Health Goals | Defined 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. | 20 ppb |
Violation Summary for Antimony (total) in California
Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in California since 2004
| Violation Type | Number of Violations |
|---|---|
| Failure to monitor regularly | 9 |