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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Lincoln County PWSD 1

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0167 ppb121ND - 0.200 ppb
20142.71 ppb20201.06 ppb - 4.18 ppb
20151.27 ppb205ND - 6.91 ppb
20160.961 ppb206ND - 5.60 ppb
20174.90 ppb12122.34 ppb - 7.34 ppb
2018ND80ND
20190.696 ppb81ND - 5.57 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
2013-05-21AB97460ND
2013-05-21AB97456ND
2013-05-21AB97458ND
2013-05-21AB97464ND
2013-05-21AB97454ND
2013-05-21AB974620.200 ppb
2013-12-03AC15053ND
2013-12-03AC15049ND
2013-12-03AC15051ND
2013-12-03AC15057ND
2013-12-03AC15047ND
2013-12-03AC15055ND
2014-01-28AC170134.18 ppb
2014-01-28AC170143.67 ppb
2014-01-28AC170151.06 ppb
2014-01-28AC170162.16 ppb
2014-01-28AC170173.41 ppb
2014-04-24AC218992.64 ppb
2014-04-24AC219002.85 ppb
2014-04-24AC219013.58 ppb
2014-04-24AC219023.35 ppb
2014-04-24AC219033.12 ppb
2014-07-22AC293711.83 ppb
2014-07-22AC293693.53 ppb
2014-07-22AC293703.56 ppb
2014-07-22AC293672.66 ppb
2014-07-22AC293682.77 ppb
2014-10-29AC367051.67 ppb
2014-10-29AC367061.33 ppb
2014-10-29AC367071.92 ppb
2014-10-29AC367082.82 ppb
2014-10-29AC367092.17 ppb
2015-01-28AC40675ND
2015-01-28AC40672ND
2015-01-28AC40673ND
2015-01-28AC40674ND
2015-01-28AC40671ND
2015-04-29AC45278ND
2015-04-29AC45279ND
2015-04-29AC45277ND
2015-04-29AC45276ND
2015-04-29AC45275ND
2015-07-29AC547254.95 ppb
2015-07-29AC547234.28 ppb
2015-07-29AC547266.91 ppb
2015-07-29AC547273.64 ppb
2015-07-29AC547245.60 ppb
2015-10-28AC61460ND
2015-10-28AC61459ND
2015-10-28AC61461ND
2015-10-28AC61457ND
2015-10-28AC61458ND
2016-01-27AC65258ND
2016-01-27AC65257ND
2016-01-27AC65256ND
2016-01-27AC65255ND
2016-01-27AC65254ND
2016-05-02AC696364.74 ppb
2016-05-02AC696375.04 ppb
2016-05-02AC696385.60 ppb
2016-05-02AC696341.29 ppb
2016-05-02AC69635ND
2016-08-03AC80103ND
2016-08-03AC801011.49 ppb
2016-08-03AC80104ND
2016-08-03AC80102ND
2016-08-03AC801051.05 ppb
2016-10-10AC85492ND
2016-10-10AC85494ND
2016-10-10AC85496ND
2016-10-10AC85493ND
2016-10-10AC85495ND
2017-01-30AC893216.15 ppb
2017-01-30AC893255.98 ppb
2017-01-30AC893246.57 ppb
2017-01-30AC893237.34 ppb
2017-01-30AC893222.34 ppb
2017-04-18AC946714.40 ppb
2017-04-18AC946704.24 ppb
2017-04-18AC946724.03 ppb
2017-04-18AC946734.02 ppb
2017-04-18AC946744.37 ppb
2017-07-18AD017235.28 ppb
2017-10-23AD080594.13 ppb
2018-01-29AD11508ND
2018-04-25AD18235ND
2018-04-25AD18232ND
2018-04-25AD18233ND
2018-04-25AD18236ND
2018-04-25AD18234ND
2018-07-18AD29474ND
2018-10-17AD34622ND
2019-01-09AD37931ND
2019-04-23AD46370ND
2019-04-23AD46369ND
2019-04-23AD46368ND
2019-04-23AD46372ND
2019-04-23AD46371ND
2019-07-23AD52140ND
2019-10-21AD569175.57 ppb