Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Carbophenothion

Signal Hill - City, Water Department

 

3

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
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016ND10ND
2017ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2016-10-209588-005-1110ND
2017-01-199588-005-0950ND
2017-04-209588-005-1010ND