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EWG's Tap Water Database — 2021 UPDATE

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butylated hydroxyanisole

San Antonio Water System

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.

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90

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
2018ND300ND
2019ND150ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-0835390951003SEA1ND
2018-05-0835390951002SEA1ND
2018-05-0835390951004SEA1ND
2018-05-0835390951005SEA1ND
2018-05-0835390962001SEA1ND
2018-05-0835390951006SEA1ND
2018-05-0835390962002SEA1ND
2018-06-20A8F3372-01ND
2018-07-23A8G3647-03ND
2018-07-23A8G3647-04ND
2018-07-23A8G3647-05ND
2018-07-23A8G3647-02ND
2018-07-23A8G3647-07ND
2018-07-23A8G3647-06ND
2018-07-23A8G3647-01ND
2018-09-06A8I1596-01ND
2018-12-0435434794002SEA2ND
2018-12-0435434794001SEA2ND
2018-12-0435434794007SEA2ND
2018-12-0435434794006SEA2ND
2018-12-0435434794005SEA2ND
2018-12-0435434794004SEA2ND
2018-12-0435434794003SEA2ND
2018-12-0535435332001SEA2ND
2018-12-0535435332003SEA2ND
2018-12-0535435332004SEA2ND
2018-12-0535435332007SEA2ND
2018-12-0535435332005SEA2ND
2018-12-0535435332002SEA2ND
2018-12-1735437726001SEA4ND
2019-05-2135470154004SEA1ND
2019-05-2135470154001SEA1ND
2019-05-2135470154002SEA1ND
2019-05-2135470154003SEA1ND
2019-05-2135470154005SEA1ND
2019-05-2135470154007SEA1ND
2019-05-2135470154006SEA1ND
2019-05-2235470638002SEA1ND
2019-05-2235470638001SEA1ND
2019-05-2235470638003SEA1ND
2019-05-2235470638004SEA1ND
2019-05-2335470772002SEA1ND
2019-05-2335470772001SEA2ND
2019-05-2335470772003SEA1ND
2019-08-1935491524001SEA3ND
2020-04-2835546694008SEA2ND
2020-04-2835546694007SEA2ND
2020-04-2835546635003SEA4ND
2020-04-2835546694009SEA2ND
2020-04-2835546694010SEA2ND
2020-04-2835546694011SEA2ND
2020-04-2835546694012SEA2ND
2020-04-2835546635002SEA2ND
2020-04-2835546635001SEA2ND
2020-04-2935546694003SEA2ND
2020-04-2935546694004SEA2ND
2020-04-2935546694001SEA2ND
2020-04-2935546694002SEA2ND
2020-04-2935546694005SEA2ND
2020-04-2935546694006SEA2ND
2020-04-3035546961001SEA2ND
2020-05-2735553059008SEA1ND
2020-05-2735553059007SEA1ND
2020-05-2735553059010SEA1ND
2020-05-2735553059006SEA1ND
2020-05-2735553059002SEA1ND
2020-05-2735553059001SEA1ND
2020-05-2735553059004SEA1ND
2020-05-2735553059003SEA1ND
2020-05-2835553055002SEA1ND
2020-05-2835553055001SEA1ND
2020-05-2835553055003SEA1ND
2020-07-0835561714001SEA1ND
2020-07-0835561714002SEA1ND
2020-07-2135564748001SEA1ND
2020-07-2135564748002SEA1ND
2020-07-2135564813001SEA1ND
2020-11-1135591473005SEA2ND
2020-11-1135591473003SEA2ND
2020-11-1135591473008SEA2ND
2020-11-1135591473007SEA2ND
2020-11-1135591473006SEA2ND
2020-11-1135591473001SEA2ND
2020-11-1135591473004SEA2ND
2020-11-1135591473002SEA2ND
2020-11-1235591867004SEA2ND
2020-11-1235591867003SEA2ND
2020-11-1235591867001SEA2ND
2020-11-1235591867002SEA2ND
2020-11-1935593681001SEA2ND