Know Your Environment. Protect Your Health.

Antimony

Gowc North Water System

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND10ND
2021ND30ND
2022ND130ND
2023ND120ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for antimony was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against change to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 6 ppb

The legal limit for antimony, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2020-12-02B2006458-001ND
2021-02-01B2100475-001ND
2021-05-03B2102123-001ND
2021-05-03B2102123-002ND
2022-02-09B2200572-002ND
2022-02-09B2200572-001ND
2022-02-15B2200664-002ND
2022-02-15B2200664-001ND
2022-04-04B2201638-001ND
2022-04-04B2201638-002ND
2022-09-27B2204850-001ND
2022-10-24B2205110-002ND
2022-10-24B2205110-001ND
2022-11-22B2205635-004ND
2022-11-22B2205635-003ND
2022-11-22B2205635-002ND
2022-11-22B2205635-001ND
2023-01-23B2300295-006ND
2023-01-23B2300295-005ND
2023-01-23B2300295-004ND
2023-01-23B2300295-003ND
2023-01-23B2300295-001ND
2023-01-27B2300529-001ND
2023-02-22B2300746-001ND
2023-04-03B2301548-002ND
2023-04-03B2301548-001ND
2023-07-10B2302776-004ND
2023-07-10B2302776-002ND
2023-07-10B2302776-001ND