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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Lake Cities Municipal Utility Authority

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.

 

21

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
2013N/A00N/A
20140.0417 ppb163ND - 0.239 ppb
2015ND40ND
20163.90 ppb113.90 ppb
2017N/A00N/A

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
2014-06-24Q1423199005ND
2014-06-24Q1423199001ND
2014-06-24Q1423199003ND
2014-06-24Q1423199011ND
2014-06-24Q1423199007ND
2014-06-24Q1423199009ND
2014-09-18Q14455160070.239 ppb
2014-09-18Q14455160030.210 ppb
2014-09-18Q1445516005ND
2014-09-18Q14455160010.218 ppb
2014-12-17Q1460364003ND
2014-12-17Q1460364009ND
2014-12-17Q1460364007ND
2014-12-17Q1460364005ND
2014-12-17Q1460364011ND
2014-12-17Q1460364001ND
2015-03-17Q1509739005ND
2015-03-17Q1509739003ND
2015-03-17Q1509739001ND
2015-03-17Q1509739007ND
2016-10-19Q16449150043.90 ppb