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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Port Washington WD

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
20130.722 ppb96ND - 3.60 ppb
20140.391 ppb165ND - 4.10 ppb
2015ND80ND
2016ND100ND
2017ND90ND
2018ND80ND
20190.335 ppb122ND - 3.40 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
2013-08-19201308200119AM0.550 ppb
2013-08-19201308200115AM0.540 ppb
2013-08-19201308200123AM0.760 ppb
2013-08-19201308200117AM0.540 ppb
2013-08-19201308200125AM0.510 ppb
2013-08-19201308200121AM3.60 ppb
2013-08-20201308230182AMND
2013-08-20201308230184AMND
2013-09-24201309250177AMND
2014-03-2835132128001AMND
2014-03-2835132128003AMND
2014-03-2835132128005AMND
2014-03-2835132128013AM0.480 ppb
2014-03-2835132128009AM4.10 ppb
2014-03-2835132128011AM0.610 ppb
2014-03-2835132128015AM0.580 ppb
2014-03-2835132128008AM0.490 ppb
2014-04-071404520-006-PRIND
2014-04-071404520-005-PRIND
2014-04-071404520-001-PRIND
2014-04-071404520-008-PRIND
2014-04-071404520-003-PRIND
2014-04-141404A14-007-PRIND
2014-04-141404A14-004-PRIND
2014-04-141404A14-008-PRIND
2015-04-061504353-006-PRIND
2015-04-061504351-002-PRIND
2015-04-061504351-003-PRIND
2015-04-061504351-001-PRIND
2015-04-131504912-001-PRIND
2015-04-131504912-006-PRIND
2015-04-131504912-005-PRIND
2015-04-221504H15-002-PRIND
2016-04-041604285-002-POCSND
2016-04-041604282-002-PRIND
2016-04-041604285-002-PRIND
2016-04-041604281-002-PRIND
2016-04-111604997-002-PRIND
2016-04-111604990-002-PRIND
2016-05-021605093-002-PRIND
2016-05-021605104-001-PRIND
2016-05-091605753-001-PRIND
2016-05-231605L28-001-PRIND
2017-04-037014743006-PRIND
2017-04-037014743004-PRIND
2017-04-037014743005-PRIND
2017-04-107015386002-PRIND
2017-04-137015766001-PRIND
2017-05-017017344001-PRIND
2017-05-017017344002-PRIND
2017-05-087018068002-PRIND
2017-05-087018068001-PRIND
2018-04-037046947002ND
2018-04-037046952001-PRIND
2018-04-097047715003-PRIND
2018-04-177048617002-PRIND
2018-05-017050068001-PRIND
2018-05-017050071001-PRIND
2018-05-077050717001-PRIND
2018-05-077050719001-PRIND
2019-02-0470782660013.40 ppb
2019-02-047078266006ND
2019-02-047078266009ND
2019-02-1970800220030.620 ppb
2019-04-117085526005-PRIND
2019-04-117085526009ND
2019-04-127085694008-PRIND
2019-04-257087268001-PRIND
2019-05-177089996001-PRIND
2019-05-207090159001-PRIND
2019-05-227090503002-PRIND
2019-05-227090503001-PRIND