Know Your Environment. Protect Your Health.

Antimony

Hartington, City of

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.81 ppb443.22 ppb - 4.18 ppb
20191.95 ppb76ND - 3.24 ppb
20202.80 ppb54ND - 4.17 ppb
20213.59 ppb222.96 ppb - 4.21 ppb
20223.10 ppb223.02 ppb - 3.17 ppb
20231.57 ppb21ND - 3.13 ppb

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
2018-01-085320664.18 ppb
2018-04-115433713.79 ppb
2018-07-235615763.22 ppb
2018-10-155772154.04 ppb
2019-01-075906741.86 ppb
2019-01-075922331.85 ppb
2019-01-22592234ND
2019-01-225922350.642 ppb
2019-04-096038072.84 ppb
2019-07-086218293.23 ppb
2019-10-026387673.24 ppb
2020-01-086511663.75 ppb
2020-04-076672202.90 ppb
2020-07-066813593.18 ppb
2020-09-08684421ND
2020-10-147007034.17 ppb
2021-01-117150154.21 ppb
2021-04-127271612.96 ppb
2022-01-037789503.17 ppb
2022-04-287927303.02 ppb
2023-04-058555053.13 ppb
2023-08-01874000ND