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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloropropene

City of Houston Willow Chase

1,1-Dichloropropene is an industrial chemical.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

All test results

Date Lab ID Result
2015-05-29AC93893ND
2015-05-29AC93899ND
2015-05-29AC93891ND
2015-05-29AC93875ND
2016-03-03AD26935ND
2016-03-03AD26933ND
2016-03-03AD26925ND
2016-03-03AD26929ND
2017-03-02AD73126ND
2017-03-02AD73122ND
2017-05-31AD86149ND
2017-05-31AD86147ND
2018-04-11AE22081ND
2018-04-11AE22085ND
2018-04-11AE22055ND
2018-04-11AE22057ND
2019-02-28AE56578ND
2019-02-28AE56614ND
2019-02-28AE56582ND
2019-02-28AE56580ND