Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chromium (total)

City of Grand Prairie

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.508 ppb440.400 ppb - 0.610 ppb
20140.343 ppb3021ND - 1.40 ppb
20150.400 ppb1413ND - 0.760 ppb
2016N/A00N/A
2017ND60ND

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
2013-10-0335111029001AM0.400 ppb
2013-10-0335111029005AM0.610 ppb
2013-10-0335111029007AM0.590 ppb
2013-10-0335111029003AM0.430 ppb
2014-01-1535123078019AM0.340 ppb
2014-01-1535123078031AM0.380 ppb
2014-04-0335132919001AM0.450 ppb
2014-04-0335132919003AM0.460 ppb
2014-04-0335132919007AMND
2014-04-0335132919005AMND
2014-04-23Q14129910051.40 ppb
2014-06-04Q1419331004ND
2014-06-26Q1424023031ND
2014-06-26Q1424023010ND
2014-06-26Q1424023011ND
2014-06-26Q1424023012ND
2014-07-0735145254021AM0.440 ppb
2014-07-0735145254001AM0.560 ppb
2014-07-0735145254023AM0.420 ppb
2014-07-0735145254007AM0.220 ppb
2014-07-0735145254025AM0.400 ppb
2014-07-0735145254005AM0.480 ppb
2014-07-0735145254015AM0.430 ppb
2014-07-0735145254031AM0.720 ppb
2014-07-0735145254029AM0.420 ppb
2014-07-0735145254009AM0.430 ppb
2014-07-0735145254027AM0.450 ppb
2014-07-0735145254003AMND
2014-07-0735145254017AM0.380 ppb
2014-07-0735145254019AM0.430 ppb
2014-07-0735145254011AM0.400 ppb
2014-07-0735145254013AM0.420 ppb
2014-09-10Q14429910080.650 ppb
2014-09-10Q1442991007ND
2015-01-0635170401019AM0.350 ppb
2015-01-0635170401025AM0.390 ppb
2015-01-0635170401023AM0.410 ppb
2015-01-0635170401021AM0.210 ppb
2015-01-0635170401027AM0.420 ppb
2015-01-0635170401001AM0.760 ppb
2015-01-0635170401017AM0.390 ppb
2015-01-0635170401013AM0.440 ppb
2015-01-0635170401011AM0.410 ppb
2015-01-0635170401015AM0.410 ppb
2015-01-0635170401007AM0.410 ppb
2015-01-0635170401005AM0.760 ppb
2015-01-0635170401009AM0.240 ppb
2015-01-0635170401003AMND
2017-01-05Q1700632004ND
2017-01-05Q1700632018ND
2017-06-27Q1726535003ND
2017-06-27Q1726535028ND
2017-06-27Q1726535002ND
2017-06-27Q1726535027ND