Know Your Environment. Protect Your Health.

Chromium (total)

El Paso County Water Control and Improvement District 4 Fabens

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
20202.15 ppb221.90 ppb - 2.40 ppb
20211.80 ppb111.80 ppb
20222.40 ppb112.40 ppb
2023ND20ND

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
2018-03-29Q1813099004ND
2019-05-30Q1930372005ND
2020-03-04Q20082170172.40 ppb
2020-03-04Q20082170181.90 ppb
2021-01-20Q21014500071.80 ppb
2022-03-08Q22079960012.40 ppb
2023-02-01Q2304220005ND
2023-02-01Q2304220006ND