Know Your Environment. Protect Your Health.

Chromium (total)

Galveston County Water Control and Improvement District 8

NOTE: Galveston County Water Control and Improvement District 8 purchases water from Gulf Coast Water Authority Tx City which is required to test for chromium (total). Sample information shown below was taken by Gulf Coast Water Authority Tx City.

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
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

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

NOTE: Galveston County Water Control and Improvement District 8 purchases water from Gulf Coast Water Authority Tx City which is required to test for chromium (total). Sample information shown below was taken by Gulf Coast Water Authority Tx City.

Date Lab ID Result
2018-03-28AE20339ND
2019-01-17AE50349ND
2020-02-06AE97259ND
2021-01-26AF40975ND
2022-03-17AF89505ND
2023-02-16AG29246ND