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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Town of Hempstead 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

 

175

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.558 ppb6949ND - 3.00 ppb
20150.0729 ppb142ND - 0.550 ppb
20160.929 ppb281ND - 26.0 ppb
2017ND170ND
2018ND240ND
2019ND230ND

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
2014-02-0397973-PRI2.00 ppb
2014-02-0498005-PRI1.000 ppb
2014-03-201403E39-009-PRIND
2014-03-201403E39-004-PRIND
2014-03-201403E39-003-PRIND
2014-03-201403E39-006-PRIND
2014-04-2998539-04292014-P1.000 ppb
2014-04-2998537-04292014-P1.000 ppb
2014-04-2998533-04292014-P1.000 ppb
2014-04-2998534-04292014-P1.000 ppb
2014-04-2998538-04292014-P1.000 ppb
2014-04-2998535-04292014-P1.000 ppb
2014-04-2998536-04292014-P1.000 ppb
2014-06-0935141680007AM0.360 ppb
2014-06-1035141680003AM0.690 ppb
2014-06-1035141680011AM0.820 ppb
2014-06-1035141680005AM0.480 ppb
2014-06-1135141731003AM0.400 ppb
2014-06-1135141731005AM0.520 ppb
2014-06-1235141988001AM0.460 ppb
2014-06-1235141988007AM0.380 ppb
2014-06-1235141988009AM0.250 ppb
2014-06-1235141988011AM0.540 ppb
2014-06-1235141988003AM0.520 ppb
2014-06-1235141988005AM0.540 ppb
2014-06-16098911-06162014-ND
2014-06-1835142693001AM0.290 ppb
2014-06-3035144083003AM1.20 ppb
2014-07-1499139-07142014-P3.00 ppb
2014-07-1499137-07142014-P1.000 ppb
2014-07-1499138-07142014-P3.00 ppb
2014-07-1499136-07142014-P1.000 ppb
2014-07-2135147292001AM0.280 ppb
2014-07-2135147292005AM0.300 ppb
2014-07-2135147292003AM0.520 ppb
2014-08-2135152373001AM0.300 ppb
2014-08-2799388-08272014-P2.00 ppb
2014-08-2799391-08272014-PND
2014-08-2799390-08272014-PND
2014-08-2799387-08272014-P3.00 ppb
2014-08-2799393-08272014-PND
2014-10-0199733-PRIND
2014-10-0299750-PRIND
2014-11-17100002-PRIND
2014-11-17100001-11172014-ND
2014-11-17100000-PRIND
2014-11-179997-11172014-PRND
2014-12-01100115-12012014-ND
2014-12-01100116-12012014-ND
2014-12-01100114-12012014-ND
2014-12-01100120-PRIND
2014-12-01100117-12012014-ND
2014-12-04100121-12012014-ND
2014-12-0835167373003AM0.290 ppb
2014-12-0835167373005AM0.520 ppb
2014-12-0935167822005AM0.760 ppb
2014-12-0935167822007AM0.570 ppb
2014-12-0935167822001AM0.330 ppb
2014-12-0935167822003AM0.430 ppb
2014-12-1035167821003AM0.350 ppb
2014-12-1035167821001AM0.300 ppb
2014-12-1035167821005AM0.350 ppb
2014-12-1135168101001AM0.300 ppb
2014-12-1135168101005AM0.260 ppb
2014-12-1135168101003AM0.320 ppb
2014-12-1135168101009AM0.490 ppb
2014-12-1135168101007AM0.400 ppb
2014-12-2235169266003AM0.620 ppb
2014-12-2235169266001AM0.370 ppb
2015-01-12100351-01122015-ND
2015-01-12100352-01122015-ND
2015-01-12100350-01122015-ND
2015-01-12100355-01122015-ND
2015-02-1335175707001AM0.470 ppb
2015-03-02100548-03022015-ND
2015-03-02100549-03022015-ND
2015-03-02100547-03022015-ND
2015-03-02100546-03022015-ND
2015-03-30100646ND
2015-03-30100645ND
2015-03-30100639ND
2015-03-30100647ND
2015-05-2735191351001AM0.550 ppb
2016-02-011602051-002-PRIND
2016-02-041602447-002 PRIND
2016-03-311603P15-002-PRIND
2016-03-311603P15-004-PRIND
2016-03-311603P15-001-PRIND
2016-03-311603P15-003-PRIND
2016-04-041604218-001ND
2016-04-041604218-003-PRIND
2016-04-041604218-002-PRIND
2016-04-041604218-006-PRIND
2016-04-041604218-005-PRIND
2016-04-041604218-004-PRIND
2016-04-251604M30-003-PRIND
2016-04-251604M30-002-PRIND
2016-04-251604M30-001-PRIND
2016-04-251604M30-006-PRIND
2016-04-251604M30-005-PRIND
2016-04-251604M30-004-PRIND
2016-05-191605I29-006-PRIND
2016-05-191605I29-007-PRIND
2016-06-031606334-002-PRI26.0 ppb
2016-06-161606G41-003ND
2016-06-161606G41-006-PRIND
2016-06-161606G41-003-PRIND
2016-06-161606G41-007-PRIND
2016-06-291606S43-003-PRIND
2016-08-311608S39-005-PRIND
2016-08-311608S39-003-PRIND
2017-01-307010148001-PRIND
2017-01-307010148004-PRIND
2017-01-307010148007-PRIND
2017-01-307010148003-PRIND
2017-01-30701014002-PRIND
2017-02-137011165007-PRIND
2017-02-137011165005-PRIND
2017-02-137011165006-PRIND
2017-02-137011165008-PRIND
2017-02-277012180005-PRIND
2017-02-277012180006-PRIND
2017-02-277012180003-PRIND
2017-02-277012180009-PRIND
2017-05-027017470003-PRIND
2017-05-317019963005-PRIND
2017-07-137024011003-PRIND
2017-10-257034010003-PRIND
2018-01-167040464002-PRIND
2018-01-297041520010-PRIND
2018-01-297041520004-PRIND
2018-01-297041520003-PRIND
2018-01-307041659002-PRIND
2018-04-137048404001-PRIND
2018-04-207049155003-PRIND
2018-04-207049155003ND
2018-04-207049155002-PRIND
2018-04-207049155001-PRIND
2018-04-2070449155004-PRIND
2018-04-207049155005ND
2018-04-267049700004-PRIND
2018-04-267049700003-PRIND
2018-05-097051103001-PRIND
2018-05-297052946006-PRIND
2018-05-297052946009-PRIND
2018-06-287056573001-PRIND
2018-07-0560521453-PRIND
2018-07-307059788007-PRIND
2018-07-307059788008-PRIND
2018-07-307059788006-PRIND
2018-07-307059788001-PRIND
2018-07-307059788004-PRIND
2019-01-247077506004-PRIND
2019-01-247077506003-PRIND
2019-01-247077506006-PRIND
2019-01-247077506003ND
2019-01-247077506007-PRIND
2019-01-247077506005-PRIND
2019-01-247077506009-PRIND
2019-01-297077854005-PRIND
2019-01-297077854001-PRIND
2019-02-067078608003-PRIND
2019-02-067078608007-PRIND
2019-02-067078608005-PRIND
2019-05-157089637006ND
2019-05-157089637005ND
2019-05-157089637003ND
2019-05-157089637002ND
2019-05-157089637001ND
2019-06-047091931001-PRIND
2019-06-277095546002-PRIND
2019-06-277095546005-PRIND
2019-06-277095546004-PRIND
2019-06-277095546003-PRIND
2019-08-1670101758001ND