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EWG's Tap Water Database — 2019 UPDATE

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1,3-Butadiene

California American Water Company - Coronado

NOTE: California American Water Company - Coronado purchases water from City of San Diego which is required to test for 1,3-butadiene. Sample information shown below was taken by City of San Diego.

 

12

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
2015N/A00N/A
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

NOTE: California American Water Company - Coronado purchases water from City of San Diego which is required to test for 1,3-butadiene. Sample information shown below was taken by City of San Diego.

Date Lab ID Result
2013-08-191308683-001FND
2013-08-201308735-001FND
2013-08-211308767-001FND
2013-11-121311402-001FND
2013-11-121311404-001FND
2013-11-131311448-001FND
2014-02-101402418-001FND
2014-02-101402421-001FND
2014-02-111402513-001FND
2014-05-121405468-001FND
2014-05-121405511-001FND
2014-05-131405607-001FND