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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Meridian Water Department

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

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.153 ppb7124ND - 3.00 ppb
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/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
2014-03-031403041-001AND
2014-03-031403054-001A0.290 ppb
2014-03-031403055-001A0.270 ppb
2014-03-031403044-001AND
2014-03-031403052-001AND
2014-03-031403056-001AND
2014-03-031403048-001A0.280 ppb
2014-03-031403043-001AND
2014-03-031403051-001A0.390 ppb
2014-03-031403047-001AND
2014-03-031403045-001A0.290 ppb
2014-03-031403049-001AND
2014-03-031403040-001AND
2014-03-031403042-001A0.270 ppb
2014-03-031403050-001A0.260 ppb
2014-03-031403053-001AND
2014-03-041403131-001AND
2014-03-041403136-001AND
2014-03-041403046-001AND
2014-03-041403133-001A0.270 ppb
2014-03-041403154-001AND
2014-03-041403134-001AND
2014-03-041403137-001AND
2014-03-041403135-001AND
2014-03-041403132-001AND
2014-03-051403156-001A0.510 ppb
2014-03-051403157-001A0.820 ppb
2014-03-051403160-001A0.450 ppb
2014-03-051403155-001AND
2014-03-051403158-001A0.200 ppb
2014-03-051403159-001AND
2014-03-061403211-001AND
2014-03-061403213-001AND
2014-03-061403214-001AND
2014-03-061403212-001AND
2014-04-081404324-001A0.480 ppb
2014-09-021409087-001A0.230 ppb
2014-09-021409075-001A0.450 ppb
2014-09-021409072-001A0.280 ppb
2014-09-021409073-001A0.360 ppb
2014-09-021409095-001A0.280 ppb
2014-09-021409083-001AND
2014-09-021409085-001AND
2014-09-021409086-001A0.200 ppb
2014-09-021409081-001AND
2014-09-021409084-001AND
2014-09-021409078-001AND
2014-09-021409082-001AND
2014-09-021409080-001AND
2014-09-021409094-001A0.250 ppb
2014-09-021409091-001AND
2014-09-021409074-001A0.320 ppb
2014-09-031409119-001AND
2014-09-031409118-001AND
2014-09-031409116-001AND
2014-09-031409114-001AND
2014-09-041409164-001AND
2014-09-041409163-001AND
2014-09-081409268-001AND
2014-09-081409266-001AND
2014-09-081409269-001A0.300 ppb
2014-09-081409265-001AND
2014-09-091409316-001A3.00 ppb
2014-09-091409317-001AND
2014-09-091409315-001AND
2014-09-091409318-001AND
2014-09-091409319-001A0.380 ppb
2014-09-291409B71-001AND
2014-10-151410575-001AND
2014-10-151410574-001AND
2014-10-151410577-001AND
2015-01-151501482-001AND