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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Gulfport

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.750 ppb43ND - 1.30 ppb
2013ND100ND
20140.448 ppb217ND - 3.70 ppb
20151.63 ppb17170.800 ppb - 4.70 ppb
2016N/A00N/A
20170.700 ppb54ND - 1.10 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
2012-04-04120405-019INND
2012-11-26121127-003IN1.000 ppb
2012-11-26121127-004IN0.700 ppb
2012-11-26121127-002IN1.30 ppb
2013-07-15731040-9333ND
2013-07-16731528-9333ND
2013-07-16731541-9333ND
2013-07-16731526-9333ND
2013-07-17731791-9361ND
2013-07-17731813-9361ND
2013-07-17731793-9361ND
2013-07-17731795-9361ND
2013-07-17731899-9361ND
2013-07-24733397-9362ND
2014-01-22767624-10644ND
2014-01-22767626-10675ND
2014-01-22767636-10675ND
2014-01-22767618-10644ND
2014-01-23768013-10675ND
2014-01-23768021-10675ND
2014-01-23768019-10675ND
2014-01-23768023-10675ND
2014-01-27768025-10675ND
2014-02-03768828-10681ND
2014-04-09140410-023IN0.600 ppb
2014-04-09140410-022INND
2014-04-09140410-021IN0.600 ppb
2014-04-09140410-020IN1.000 ppb
2014-04-09140410-019IN0.800 ppb
2014-04-09140410-018IN1.30 ppb
2014-04-09140410-010INND
2014-04-09140410-009INND
2014-04-09140410-008INND
2014-04-09140410-007IN1.40 ppb
2014-04-09140410-006IN3.70 ppb
2015-03-04150305-007IN1.50 ppb
2015-03-04150305-006IN1.50 ppb
2015-03-04150305-005IN2.00 ppb
2015-03-04150305-004IN2.40 ppb
2015-03-04150305-003IN1.90 ppb
2015-03-04150305-002IN4.70 ppb
2015-03-04150305-001IN3.20 ppb
2015-03-04150305-008IN1.000 ppb
2015-03-04150305-009IN1.50 ppb
2015-03-04150305-010IN1.000 ppb
2015-03-04150305-025IN0.800 ppb
2015-03-04150305-020IN0.900 ppb
2015-03-04150305-019IN1.000 ppb
2015-03-04150305-018IN1.20 ppb
2015-03-04150305-017IN1.20 ppb
2015-03-04150305-016IN1.10 ppb
2015-03-04150305-015IN0.800 ppb
2017-05-10170511-004IN1.10 ppb
2017-05-10170511-003IN0.900 ppb
2017-05-10170511-002IN0.800 ppb
2017-05-10170511-001IN0.700 ppb
2017-05-22170523-004INND