Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Propachlor

Bethesda WSC

Propachlor is a carcinogenic, DNA-damaging herbicide also associated with adverse developmental effects and reproductive toxicity. Propachlor use is discontinued in the U.S.

MORE ABOUT THIS CONTAMINANT

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND40ND
2015ND120ND
2016ND80ND
2017ND70ND
2018ND100ND
2019ND50ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-13Q1421328003ND
2014-06-13Q1421328002ND
2014-10-07Q1451274002ND
2014-10-07Q1451274001ND
2015-02-03Q1504044001ND
2015-04-22Q1515039002ND
2015-04-22Q1515039001ND
2015-04-22Q1515039003ND
2015-04-22Q1515039004ND
2015-04-22Q1515039006ND
2015-04-22Q1515039007ND
2015-04-22Q1515039008ND
2015-06-17Q1522842003ND
2015-08-04Q1530233011ND
2015-08-04Q1530233005ND
2015-11-02Q1543432005ND
2016-02-17Q1607184005ND
2016-03-21Q1611365001ND
2016-04-20Q1615721007ND
2016-10-20Q1644787001ND
2016-11-08Q1648213039ND
2016-11-08Q1648213041ND
2016-11-08Q1648213040ND
2016-11-08Q1648213038ND
2017-01-31Q1704122016ND
2017-05-24Q1721425001ND
2017-07-18Q1729512006ND
2017-10-17Q1753293007ND
2017-10-17Q1753293011ND
2017-11-01Q1756223004ND
2017-12-12Q1765140001ND
2018-02-21Q1807322001ND
2018-05-16Q1819957024ND
2018-05-16Q1819957019ND
2018-05-16Q1819957020ND
2018-05-16Q1819957021ND
2018-05-16Q1819957022ND
2018-05-16Q1819957023ND
2018-05-16Q1819957025ND
2018-10-19Q1842052002ND
2018-10-19Q1842052001ND
2019-01-15Q1901990007ND
2019-04-11Q1914886001ND
2019-04-11Q1914886016ND
2019-04-11Q1914886015ND
2019-04-11Q1914886014ND