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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Tallulah Water System

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.

MORE ABOUT THIS CONTAMINANT

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND100ND
2017ND20ND
20181.000 ppb146ND - 3.50 ppb
20194.50 ppb224.50 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2016-02-2335231300003ND
2016-02-2335231300001ND
2016-02-2335231300002ND
2016-02-2335231300003ND
2016-02-2335231300004ND
2016-02-2335231300002ND
2016-02-2335231300001ND
2016-02-2335231300004ND
2016-12-0235282272026ND
2016-12-0235282272026ND
2017-03-0635300115007ND
2017-03-0635300115007ND
2018-06-22354000560013.50 ppb
2018-06-22354000560013.50 ppb
2018-09-19354198470011.50 ppb
2018-09-19354198470011.50 ppb
2018-10-2235426078004ND
2018-10-2235426078003ND
2018-10-2235426078002ND
2018-10-2235426078002ND
2018-10-2235426078003ND
2018-10-2235426078004ND
2018-10-2235426078005ND
2018-10-2235426078005ND
2018-11-05354299840072.00 ppb
2018-11-05354299840072.00 ppb
2019-10-04355028240054.50 ppb
2019-10-04355028240054.50 ppb