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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloropropene

Twin Buttes Water System

NOTE: Twin Buttes Water System purchases water from City of San Angelo which is required to test for 1,1-dichloropropene. Sample information shown below was taken by City of San Angelo.

1,1-Dichloropropene is an industrial chemical.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND10ND
2016ND20ND
2017ND10ND
2018ND10ND
2019ND10ND

ppb = parts per billion

All test results

NOTE: Twin Buttes Water System purchases water from City of San Angelo which is required to test for 1,1-dichloropropene. Sample information shown below was taken by City of San Angelo.

Date Lab ID Result
2014-04-29AC52069ND
2014-04-29AC52067ND
2014-04-29AC52065ND
2014-04-29AC52063ND
2014-04-29AC52037ND
2014-04-29AC52059ND
2014-04-29AC52039ND
2014-04-29AC52071ND
2014-08-11AC63095ND
2015-08-12AD03968ND
2016-02-17AD24323ND
2016-05-17AD37069ND
2016-07-20AD45007ND
2016-11-09AD57412ND
2017-05-09Q1719085002ND
2018-02-28Q1808687007ND
2019-05-07Q1920785002ND