Know Your Environment. Protect Your Health.

Chromium (total)

Waverly, City of

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
20181.21 ppb221.07 ppb - 1.35 ppb
20190.580 ppb110.580 ppb
2020N/A00N/A
20210.711 ppb220.566 ppb - 0.856 ppb
20222.27 ppb112.27 ppb
2023N/A00N/A

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
2018-01-095322761.07 ppb
2018-01-095322771.35 ppb
2019-04-226033380.580 ppb
2021-01-127166880.566 ppb
2021-01-127166870.856 ppb
2022-04-187928652.27 ppb