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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Georgetown

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.372 ppb2821ND - 3.78 ppb
2014ND30ND
2015ND30ND
2016ND40ND
2017ND30ND

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
2013-02-13201302140518AM0.300 ppb
2013-02-13201302140627AMND
2013-02-13201302140512AM0.200 ppb
2013-02-13201302140632AM0.280 ppb
2013-02-13201302140506AM0.270 ppb
2013-02-13201302140629AM0.270 ppb
2013-03-2513038390020.887 ppb
2013-05-21201305220654AM0.430 ppb
2013-05-21201305220658AM0.400 ppb
2013-05-21201305220656AM0.400 ppb
2013-05-30201305310230AM0.440 ppb
2013-05-30201305310228AM0.400 ppb
2013-05-30201305310202AM0.440 ppb
2013-06-03Q13018270253.78 ppb
2013-07-30201307310261AM0.240 ppb
2013-07-30201307310299AM0.220 ppb
2013-07-30201307310239AMND
2013-07-30201307310295AMND
2013-07-30201307310205AM0.320 ppb
2013-07-30201307310244AMND
2013-09-25Q1308517007ND
2013-09-25Q1308517008ND
2013-12-04201312050104AM0.220 ppb
2013-12-04201312050089AM0.240 ppb
2013-12-04201312050119AM0.200 ppb
2013-12-13201312160034AM0.250 ppb
2013-12-13201312160032AMND
2013-12-13201312160036AM0.230 ppb
2014-02-26AC44683ND
2014-02-26AC44687ND
2014-05-06AC53129ND
2015-03-05AC82826ND
2015-03-05AC82836ND
2015-03-05AC82821ND
2016-02-09AD22873ND
2016-02-09AD22874ND
2016-02-09AD22875ND
2016-04-21AD33706ND
2017-01-23AD66000ND
2017-01-23AD65996ND
2017-01-23AD65997ND