Know Your Environment. Protect Your Health.

Chromium (total)

Ranch Hand Apartments

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.

 

6

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
20192.35 ppb222.30 ppb - 2.40 ppb
20204.10 ppb114.10 ppb
2021N/A00N/A
20220.550 ppb21ND - 1.10 ppb
20235.90 ppb115.90 ppb

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
2019-02-21Q19077080032.40 ppb
2019-02-21Q19077080192.30 ppb
2020-02-13Q20058870154.10 ppb
2022-06-08Q22161100111.10 ppb
2022-06-08Q2216110012ND
2023-03-02Q23085780085.90 ppb