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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

City of Tallahassee

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.

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83

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.33 ppb4136ND - 2.50 ppb
20150.864 ppb1411ND - 1.50 ppb
2016N/A00N/A
20170.574 ppb2712ND - 2.00 ppb
2018N/A00N/A
2019ND10ND

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 Result
2014-01-281.50 ppb
2014-01-281.70 ppb
2014-01-281.90 ppb
2014-01-28ND
2014-01-281.50 ppb
2014-01-281.80 ppb
2014-03-112.30 ppb
2014-03-111.30 ppb
2014-03-111.60 ppb
2014-03-111.30 ppb
2014-03-111.40 ppb
2014-03-121.60 ppb
2014-05-062.20 ppb
2014-05-062.20 ppb
2014-05-06ND
2014-05-062.20 ppb
2014-05-061.40 ppb
2014-07-222.20 ppb
2014-07-222.50 ppb
2014-07-220.800 ppb
2014-07-221.80 ppb
2014-07-220.800 ppb
2014-07-221.60 ppb
2014-09-091.90 ppb
2014-09-091.70 ppb
2014-09-091.60 ppb
2014-09-091.70 ppb
2014-10-150.800 ppb
2014-10-15ND
2014-10-15ND
2014-10-151.30 ppb
2014-10-150.900 ppb
2014-10-15ND
2014-10-150.900 ppb
2014-10-150.800 ppb
2014-10-151.30 ppb
2014-11-051.40 ppb
2014-11-200.700 ppb
2014-11-201.50 ppb
2014-12-170.900 ppb
2014-12-171.60 ppb
2015-04-070.900 ppb
2015-04-071.40 ppb
2015-04-071.000 ppb
2015-04-070.800 ppb
2015-04-070.800 ppb
2015-04-07ND
2015-04-081.50 ppb
2015-04-08ND
2015-04-08ND
2015-04-081.40 ppb
2015-04-080.900 ppb
2015-04-081.40 ppb
2015-04-080.800 ppb
2015-04-081.20 ppb
2017-01-24ND
2017-01-241.80 ppb
2017-01-241.50 ppb
2017-01-241.80 ppb
2017-01-242.00 ppb
2017-01-241.80 ppb
2017-03-08ND
2017-03-08ND
2017-03-08ND
2017-03-08ND
2017-03-081.000 ppb
2017-03-08ND
2017-06-200.700 ppb
2017-06-200.700 ppb
2017-06-20ND
2017-06-200.900 ppb
2017-06-20ND
2017-06-20ND
2017-07-01ND
2017-07-18ND
2017-07-18ND
2017-07-181.20 ppb
2017-07-181.000 ppb
2017-09-141.10 ppb
2017-09-14ND
2017-09-14ND
2017-09-14ND
2019-07-17ND