Know Your Environment. Protect Your Health.

Chromium (total)

City of Sanger

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
20191.58 ppb441.50 ppb - 1.60 ppb
20204.15 ppb21ND - 8.30 ppb
2021ND20ND
20220.525 ppb41ND - 2.10 ppb
20231.90 ppb221.60 ppb - 2.20 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
2019-01-09Q19015960151.60 ppb
2019-01-09Q19015960161.60 ppb
2019-01-09Q19015960171.60 ppb
2019-01-09Q19015960181.50 ppb
2020-10-06Q2039051015ND
2020-10-06Q20390510168.30 ppb
2022-02-08Q2204312002ND
2022-11-29Q2235417007ND
2022-11-29Q2235417008ND
2022-12-13Q22373080032.10 ppb
2023-11-15Q23490510182.20 ppb
2023-11-15Q23490510191.60 ppb