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EWG's Tap Water Database — 2021 UPDATE

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Ethylene dibromide

San Antonio Water System

Ethylene dibromide, a likely human carcinogen, was used until 1984 as a gasoline additive and a pesticide. It affects the hormone, reproductive and nervous systems; causes testicular atrophy; and damages the heart, liver and kidneys.

MORE ABOUT THIS CONTAMINANT

 

120

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND340ND
2015ND30ND
2016ND120ND
2017ND500ND
2018ND100ND
2019ND110ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.01 ppb

The EWG Health Guideline of 0.01 ppb for ethylene dibromide was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 0.05 ppb

The legal limit for ethylene dibromide, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to ethylene dibromide exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-13AC38565ND
2014-01-13AC38585ND
2014-01-13AC38567ND
2014-01-13AC38583ND
2014-01-13AC38579ND
2014-01-14AC38804ND
2014-01-14AC38820ND
2014-01-14AC38832ND
2014-01-14AC38802ND
2014-01-14AC38818ND
2014-01-15AC39032ND
2014-03-31AC48736ND
2014-03-31AC48732ND
2014-03-31AC48714ND
2014-03-31AC48728ND
2014-03-31AC48730ND
2014-03-31AC48734ND
2014-05-13AC53997ND
2014-05-13AC53999ND
2014-05-16AC54471ND
2014-06-30AC58424ND
2014-06-30AC58426ND
2014-07-29AC61381ND
2014-07-29AC61385ND
2014-07-29AC61383ND
2014-07-30AC61561ND
2014-07-31AC61766ND
2014-09-02AC65467ND
2014-09-29AC68406ND
2014-09-29AC68404ND
2014-09-29AC68408ND
2014-11-25AC73000ND
2014-11-25AC72998ND
2014-12-02AC73353ND
2015-06-04AC94669ND
2015-07-30AD01862ND
2015-11-23AD14475ND
2016-01-13AD17955ND
2016-06-28AD42253ND
2016-06-28AD42245ND
2016-09-01AD47726ND
2016-09-01AD47730ND
2016-11-02AD56210ND
2016-11-02AD56224ND
2016-11-02AD56212ND
2016-11-02AD56228ND
2016-11-03AD56532ND
2016-11-29AD59405ND
2016-11-29AD59407ND
2017-01-30AD67615ND
2017-01-30AD67609ND
2017-01-30AD67605ND
2017-01-30AD67604ND
2017-02-01AD68159ND
2017-02-01AD68161ND
2017-02-02AD68473ND
2017-03-06AD73503ND
2017-03-06AD73505ND
2017-03-06AD73491ND
2017-03-06AD73501ND
2017-03-29AD77508ND
2017-03-29AD77506ND
2017-03-29AD77502ND
2017-03-29AD77504ND
2017-03-29AD77498ND
2017-03-30AD77828ND
2017-03-30AD77830ND
2017-03-30AD77826ND
2017-04-25AD80994ND
2017-05-24AD85546ND
2017-07-06AD88532ND
2017-07-06AD88530ND
2017-07-06AD88534ND
2017-07-07AD88732ND
2017-09-11AD95547ND
2017-09-11AD95545ND
2017-09-11AD95549ND
2017-10-17AE01141ND
2017-10-18AE01406ND
2017-10-18AE01404ND
2017-10-18AE01408ND
2017-12-04AE06620ND
2017-12-05AE06808ND
2017-12-05AE06814ND
2017-12-05AE06810ND
2017-12-06AE07038ND
2017-12-07AE07261ND
2017-12-07AE07263ND
2017-12-07AE07255ND
2017-12-07AE07267ND
2017-12-07AE07257ND
2017-12-07AE07259ND
2017-12-08AE07447ND
2017-12-08AE07449ND
2017-12-13AE07690ND
2017-12-13AE07696ND
2017-12-13AE07698ND
2017-12-13AE07694ND
2017-12-20AE07872ND
2018-03-01AE16396ND
2018-03-15AE18682ND
2018-05-09AE25795ND
2018-05-10AE25983ND
2018-07-02AE32293ND
2018-07-19AE33983ND
2018-08-31AE39165ND
2018-10-05AE42834ND
2018-11-19AE46520ND
2018-12-13AE48868ND
2019-01-30AE52268ND
2019-01-31AE52501ND
2019-01-31AE52503ND
2019-03-28AE60500ND
2019-03-28AE60502ND
2019-04-23AE63410ND
2019-04-25AE63762ND
2019-05-17AE67220ND
2019-08-13AE78359ND
2019-10-31AE88192ND
2019-11-26AE90639ND