Know Your Environment. Protect Your Health.

Arsenic

Sugar Mountain Utility

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

32

Samples

4

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20199.00 ppb119.00 ppb
2020ND40ND
2021ND10ND
20220.474 ppb191ND - 9.00 ppb
202314.3 ppb75ND - 41.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic 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 cancer.

EPA Maximum Contaminant
Level (MCL): 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2019-10-157041-101519-OOXI9.00 ppb
2020-03-2437729_20-12722ND
2020-05-1237729_20-19914ND
2020-08-1837729_20-36136ND
2020-12-1537729_20-54609ND
2021-03-0437729_21-10442ND
2022-03-157041-031522-OOWIND
2022-03-3037729_22-14586ND
2022-05-187041-051822-OOFIND
2022-05-187041-051822-OPQIND
2022-05-187041-051822-OOTIND
2022-05-187041-051822-OOSIND
2022-05-187041-051822-OORIND
2022-05-187041-051822-OONIND
2022-05-187041-051822-OOIIND
2022-05-187041-051822-OODIND
2022-05-187041-051822-OOCIND
2022-05-187041-051822-OOBIND
2022-05-187041-051822-OOAIND
2022-05-187041-051822-OLMIND
2022-05-187041-051822-OJKIND
2022-05-187041-051822-OGHIND
2022-05-187041-051822-OOEIND
2022-11-017041-110122-OOVIND
2022-11-217041-112122-OOXI9.00 ppb
2023-03-01752-3757-112.0 ppb
2023-05-16752-7118-115.0 ppb
2023-08-30752-11121-19.10 ppb
2023-08-30752-11122-1ND
2023-10-17752-12716-123.0 ppb
2023-11-13752-13635-141.0 ppb
2023-12-04752-14338-1ND