Know Your Environment. Protect Your Health.

Chromium (total)

Town of Annetta Deer Creek

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.50 ppb32ND - 2.50 ppb
20193.17 ppb332.50 ppb - 4.00 ppb
20203.55 ppb21ND - 7.10 ppb
20212.13 ppb32ND - 5.30 ppb
20222.20 ppb31ND - 6.60 ppb
20231.60 ppb21ND - 3.20 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
2018-08-06Q18309960032.50 ppb
2018-08-06Q1830996013ND
2018-12-03Q18490510032.00 ppb
2019-06-03Q19306770253.00 ppb
2019-06-03Q19306770264.00 ppb
2019-06-03Q19306770272.50 ppb
2020-04-21Q20158030267.10 ppb
2020-08-27Q2034434013ND
2021-02-01Q21028570161.10 ppb
2021-02-01Q2102857017ND
2021-05-24Q21133490055.30 ppb
2022-02-07Q2204015002ND
2022-03-10Q22083620026.60 ppb
2022-11-17Q2234711002ND
2023-11-08Q23481070243.20 ppb
2023-11-08Q2348107025ND