Know Your Environment. Protect Your Health.

Chromium (total)

City of Sansom Park

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

13

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
20190.583 ppb63ND - 1.30 ppb
2020N/A00N/A
2021ND10ND
20226.42 ppb65ND - 8.50 ppb
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2019-05-02Q19181460041.10 ppb
2019-05-02Q19181460051.10 ppb
2019-05-02Q1918146006ND
2019-05-02Q1918146007ND
2019-05-02Q1918146008ND
2019-05-02Q19181460091.30 ppb
2021-09-14Q2124999008ND
2022-10-13Q22310740138.00 ppb
2022-10-13Q22310740147.70 ppb
2022-10-13Q22310740157.60 ppb
2022-10-13Q2231074024ND
2022-10-13Q22310740258.50 ppb
2022-10-13Q22310740266.70 ppb