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EWG's Tap Water Database — 2021 UPDATE

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butylated hydroxyanisole

City of San Marcos

Butylated hydroxyanisole, or BHA, is used as a food preservative. The chemical is considered a possible human carcinogen and classified by the European Union as an endocrine disruptor.

 

24

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
2018ND240ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-06Q1809017004ND
2018-03-06Q1809017002ND
2018-03-06Q1809017006ND
2018-03-06Q1809017003ND
2018-03-06Q1809017001ND
2018-03-06Q1809017005ND
2018-06-11Q1823176004ND
2018-06-11Q1823176002ND
2018-06-11Q1823176003ND
2018-06-11Q1823176005ND
2018-06-11Q1823176001ND
2018-06-11Q1823176006ND
2018-09-10Q1835765003ND
2018-09-10Q1835765004ND
2018-09-10Q1835765002ND
2018-09-10Q1835765005ND
2018-09-10Q1835765001ND
2018-09-10Q1835765006ND
2018-12-18Q1852176002ND
2018-12-19Q1852176003ND
2018-12-19Q1852176004ND
2018-12-19Q1852176005ND
2018-12-19Q1852176001ND
2018-12-19Q1852176006ND