Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

1,3-Butadiene

City of San Clemente

 

10

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
2013ND40ND
2014ND40ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0103 ppb

The EWG Health Guideline of 0.0103 ppb for 1,3-butadiene was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2013-09-113I11048-01AND
2013-09-113I11048-03AND
2013-12-093L09134-03AND
2013-12-093L09134-01AND
2014-03-104C10057-03AND
2014-03-104C10057-01AND
2014-06-184F18051-01AND
2014-06-184F18051-03AND
2015-07-295G29085-01AND
2015-12-025L02070-01AND