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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Seagoville

NOTE: City of Seagoville purchases water from Dallas Water Utility which is required to test for chromium (total). Sample information shown below was taken by Dallas Water Utility.

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.

 

39

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
20130.643 ppb330.521 ppb - 0.707 ppb
20140.643 ppb2119ND - 3.76 ppb
20150.478 ppb880.271 ppb - 1.41 ppb
20160.653 ppb330.480 ppb - 0.770 ppb
20170.433 ppb31ND - 1.30 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

NOTE: City of Seagoville purchases water from Dallas Water Utility which is required to test for chromium (total). Sample information shown below was taken by Dallas Water Utility.

Date Lab ID Result
2013-09-05Q13066180150.702 ppb
2013-09-05Q13066180140.707 ppb
2013-09-05Q13066180130.521 ppb
2014-02-19Q14054200023.76 ppb
2014-04-08Q1410915001ND
2014-04-08Q14109150090.571 ppb
2014-04-08Q14109150050.428 ppb
2014-04-08Q14109150150.496 ppb
2014-04-08Q14109150130.417 ppb
2014-04-08Q1410915017ND
2014-05-22Q14176830041.60 ppb
2014-05-22Q14176830032.40 ppb
2014-07-15Q14280700130.327 ppb
2014-07-15Q14280700150.251 ppb
2014-07-15Q14280700010.249 ppb
2014-07-15Q14280700090.462 ppb
2014-07-15Q14280700170.252 ppb
2014-07-15Q14280700050.328 ppb
2014-10-21Q14532990050.306 ppb
2014-10-21Q14532990130.350 ppb
2014-10-21Q14532990170.269 ppb
2014-10-21Q14532990150.402 ppb
2014-10-21Q14532990010.234 ppb
2014-10-21Q14532990090.405 ppb
2015-01-13Q15005120050.472 ppb
2015-01-13Q15005120130.455 ppb
2015-01-13Q15005120150.372 ppb
2015-01-13Q15005120170.218 ppb
2015-01-13Q1500512001ND
2015-01-13Q15005120090.463 ppb
2015-01-15Q15013020020.780 ppb
2015-03-11Q15090630040.820 ppb
2015-04-20Q15146560030.860 ppb
2016-01-12Q16013710020.710 ppb
2016-02-11Q16063960020.480 ppb
2016-09-14Q16374730060.770 ppb
2017-01-03Q17001790101.30 ppb
2017-01-24Q1703294003ND
2017-08-23Q1737870005ND