Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Chlorpyriphos

Harris County MUD 53

Chlorpyrifos is an organophosphate pesticide that has been widely used, but in 2021, application on food crops was banned by the EPA. Exposure to chlorpyrifos during pregnancy and early life harms the developing brain, including reduced IQ, delayed development of motor and sensory functions, and social and behavioral dysfunction.

 

8

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
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019ND60ND

ppb = parts per billion

All test results

Date Lab ID Result
2019-06-1735476014001SEA1ND
2019-06-1735476014002SEA1ND
2019-09-2635500945001SEA2ND
2019-09-2635500945002SEA2ND
2019-12-1835519970001SEA3ND
2019-12-1835519970002SEA3ND
2020-03-1835538416001SEA4ND
2020-03-1835538416002SEA4ND