Know Your Environment. Protect Your Health.

Chromium (total)

Hollands Quarter Water Supply Corporation

NOTE: Hollands Quarter Water Supply Corporation purchases water from City of Carthage which is required to test for chromium (total). Sample information shown below was taken by City of Carthage.

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: Hollands Quarter Water Supply Corporation purchases water from City of Carthage which is required to test for chromium (total). Sample information shown below was taken by City of Carthage.

Date Lab ID Result
2018-02-14Q1806322002ND
2019-02-05Q1905209003ND
2020-03-11Q2010299002ND
2021-02-24Q2104964002ND
2022-01-26Q2202696002ND
2023-02-13Q2305514003ND