Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

San Antonio Water System

Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

384

Samples

0

Samples exceeding legal limit (MCL)

332

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.97 ppb6459ND - 8.00 ppb
20152.36 ppb6457ND - 7.50 ppb
20161.85 ppb6453ND - 5.50 ppb
20172.48 ppb6455ND - 7.90 ppb
20182.59 ppb6450ND - 8.00 ppb
20192.62 ppb6458ND - 6.20 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-17AC431032.50 ppb
2014-02-17AC430412.90 ppb
2014-02-17AC430422.60 ppb
2014-02-17AC431051.40 ppb
2014-02-17AC430991.70 ppb
2014-02-17AC430452.80 ppb
2014-02-17AC431012.70 ppb
2014-02-17AC430491.70 ppb
2014-02-17AC431041.10 ppb
2014-02-18AC435612.80 ppb
2014-02-18AC435714.00 ppb
2014-02-18AC435303.50 ppb
2014-02-18AC435432.70 ppb
2014-02-18AC435683.00 ppb
2014-02-18AC435651.50 ppb
2014-02-18AC43563ND
2014-05-14AC542094.10 ppb
2014-05-14AC542194.40 ppb
2014-05-14AC542162.00 ppb
2014-05-14AC542201.30 ppb
2014-05-14AC542214.30 ppb
2014-05-14AC542492.10 ppb
2014-05-14AC54250ND
2014-05-14AC54204ND
2014-05-15AC543197.00 ppb
2014-05-15AC543218.00 ppb
2014-05-15AC543185.70 ppb
2014-05-15AC543174.80 ppb
2014-05-15AC543205.80 ppb
2014-05-15AC543226.40 ppb
2014-05-15AC543235.70 ppb
2014-05-15AC543272.80 ppb
2014-07-30AC616383.70 ppb
2014-07-30AC616421.50 ppb
2014-07-30AC616391.70 ppb
2014-07-30AC616401.000 ppb
2014-07-30AC616414.60 ppb
2014-07-30AC616611.70 ppb
2014-07-30AC616521.60 ppb
2014-07-30AC61643ND
2014-07-31AC618364.60 ppb
2014-07-31AC618384.40 ppb
2014-07-31AC618375.60 ppb
2014-07-31AC618583.80 ppb
2014-07-31AC618354.00 ppb
2014-07-31AC618391.50 ppb
2014-07-31AC618593.40 ppb
2014-07-31AC618402.00 ppb
2014-12-01AC731924.20 ppb
2014-12-01AC731951.50 ppb
2014-12-01AC731933.70 ppb
2014-12-01AC731944.50 ppb
2014-12-01AC731913.80 ppb
2014-12-01AC731991.90 ppb
2014-12-01AC73198ND
2014-12-01AC731961.40 ppb
2014-12-02AC733213.00 ppb
2014-12-02AC733204.00 ppb
2014-12-02AC733174.10 ppb
2014-12-02AC733192.60 ppb
2014-12-02AC733163.60 ppb
2014-12-02AC733182.10 ppb
2014-12-02AC733321.90 ppb
2014-12-02AC733311.50 ppb
2015-03-04AC827233.40 ppb
2015-03-04AC827203.30 ppb
2015-03-04AC827183.30 ppb
2015-03-04AC827312.10 ppb
2015-03-04AC827221.90 ppb
2015-03-04AC827192.10 ppb
2015-03-04AC827321.80 ppb
2015-03-04AC826813.30 ppb
2015-03-05AC826996.90 ppb
2015-03-05AC827034.30 ppb
2015-03-05AC827016.30 ppb
2015-03-05AC827044.70 ppb
2015-03-05AC827027.50 ppb
2015-03-05AC827351.30 ppb
2015-03-05AC82727ND
2015-03-05AC827002.90 ppb
2015-06-03AC944012.10 ppb
2015-06-03AC944043.10 ppb
2015-06-03AC943904.80 ppb
2015-06-03AC943883.20 ppb
2015-06-03AC943892.70 ppb
2015-06-03AC943971.60 ppb
2015-06-03AC94391ND
2015-06-03AC943931.60 ppb
2015-06-04AC947371.70 ppb
2015-06-04AC947352.80 ppb
2015-06-04AC947412.60 ppb
2015-06-04AC947391.40 ppb
2015-06-04AC947401.40 ppb
2015-06-04AC947362.40 ppb
2015-06-04AC947331.20 ppb
2015-06-04AC947383.10 ppb
2015-09-02AD05294ND
2015-09-02AD052881.90 ppb
2015-09-02AD053051.30 ppb
2015-09-02AD052922.50 ppb
2015-09-02AD053062.20 ppb
2015-09-02AD052932.50 ppb
2015-09-02AD05289ND
2015-09-02AD05308ND
2015-09-03AD055823.00 ppb
2015-09-03AD055993.30 ppb
2015-09-03AD055963.60 ppb
2015-09-03AD055982.70 ppb
2015-09-03AD055802.70 ppb
2015-09-03AD055792.70 ppb
2015-09-03AD055881.30 ppb
2015-09-03AD055831.90 ppb
2015-10-26AD11685ND
2015-10-26AD116742.70 ppb
2015-10-26AD116801.80 ppb
2015-10-26AD116774.10 ppb
2015-10-26AD116923.00 ppb
2015-10-26AD116882.00 ppb
2015-10-26AD11678ND
2015-10-26AD116912.80 ppb
2015-10-27AD118151.20 ppb
2015-10-27AD117982.70 ppb
2015-10-27AD118071.60 ppb
2015-10-27AD118091.40 ppb
2015-10-27AD117991.30 ppb
2015-10-27AD118171.20 ppb
2015-10-27AD118101.80 ppb
2015-10-27AD118081.30 ppb
2016-01-13AD178522.30 ppb
2016-01-13AD178531.60 ppb
2016-01-13AD178551.60 ppb
2016-01-13AD178544.90 ppb
2016-01-13AD178572.60 ppb
2016-01-13AD178463.40 ppb
2016-01-13AD178583.80 ppb
2016-01-13AD17851ND
2016-01-14AD181792.50 ppb
2016-01-14AD181801.000 ppb
2016-01-14AD181742.10 ppb
2016-01-14AD181761.80 ppb
2016-01-14AD181782.20 ppb
2016-01-14AD181731.50 ppb
2016-01-14AD181751.70 ppb
2016-01-14AD18177ND
2016-05-31AD387102.50 ppb
2016-05-31AD387162.70 ppb
2016-05-31AD386871.30 ppb
2016-05-31AD386882.40 ppb
2016-05-31AD386892.40 ppb
2016-05-31AD387113.90 ppb
2016-05-31AD387143.90 ppb
2016-05-31AD387171.90 ppb
2016-05-31AD387195.50 ppb
2016-05-31AD38712ND
2016-05-31AD387132.60 ppb
2016-06-01AD38910ND
2016-06-01AD38917ND
2016-06-01AD38912ND
2016-06-01AD389151.20 ppb
2016-06-01AD389091.20 ppb
2016-07-20AD448811.000 ppb
2016-07-20AD44892ND
2016-07-20AD448771.10 ppb
2016-07-20AD448711.60 ppb
2016-07-20AD44879ND
2016-07-21AD451971.90 ppb
2016-07-21AD451681.70 ppb
2016-07-21AD451942.60 ppb
2016-07-21AD451691.30 ppb
2016-07-21AD451651.10 ppb
2016-07-21AD451961.50 ppb
2016-07-21AD451991.40 ppb
2016-07-21AD452011.80 ppb
2016-07-21AD451921.80 ppb
2016-07-21AD45202ND
2016-07-21AD451911.50 ppb
2016-10-31AD554092.10 ppb
2016-10-31AD55399ND
2016-10-31AD554022.20 ppb
2016-10-31AD553981.90 ppb
2016-10-31AD554031.000 ppb
2016-11-01AD557782.30 ppb
2016-11-01AD557793.10 ppb
2016-11-01AD557871.90 ppb
2016-11-01AD557822.40 ppb
2016-11-01AD557802.30 ppb
2016-11-01AD557852.70 ppb
2016-11-01AD557883.60 ppb
2016-11-01AD557811.90 ppb
2016-11-01AD557863.90 ppb
2016-11-01AD55789ND
2016-11-01AD557842.20 ppb
2017-01-31AD678222.30 ppb
2017-01-31AD678233.00 ppb
2017-01-31AD678242.50 ppb
2017-01-31AD678282.10 ppb
2017-01-31AD678302.10 ppb
2017-01-31AD678252.60 ppb
2017-01-31AD678263.70 ppb
2017-01-31AD678211.40 ppb
2017-01-31AD678295.50 ppb
2017-01-31AD67827ND
2017-01-31AD678171.50 ppb
2017-02-01AD680721.10 ppb
2017-02-01AD68069ND
2017-02-01AD680701.10 ppb
2017-02-01AD680731.000 ppb
2017-02-01AD680711.20 ppb
2017-04-24AD806414.30 ppb
2017-04-24AD806703.90 ppb
2017-04-24AD806334.00 ppb
2017-04-24AD806383.50 ppb
2017-04-24AD806454.00 ppb
2017-04-24AD806364.10 ppb
2017-04-24AD806312.40 ppb
2017-04-24AD806713.90 ppb
2017-04-24AD80632ND
2017-04-24AD806433.90 ppb
2017-04-25AD809126.20 ppb
2017-04-25AD809191.60 ppb
2017-04-25AD80915ND
2017-04-25AD809141.30 ppb
2017-04-25AD809131.30 ppb
2017-04-25AD809111.000 ppb
2017-08-09AD925347.90 ppb
2017-08-09AD925384.10 ppb
2017-08-09AD925363.90 ppb
2017-08-09AD925401.70 ppb
2017-08-09AD925504.50 ppb
2017-08-09AD925373.90 ppb
2017-08-09AD92539ND
2017-08-09AD925493.70 ppb
2017-08-10AD927185.10 ppb
2017-08-10AD927205.40 ppb
2017-08-10AD927241.70 ppb
2017-08-10AD927231.30 ppb
2017-08-10AD92716ND
2017-08-10AD927141.30 ppb
2017-08-10AD927221.70 ppb
2017-08-10AD927171.10 ppb
2017-10-16AE008042.30 ppb
2017-10-16AE008152.90 ppb
2017-10-16AE008323.30 ppb
2017-10-16AE008081.70 ppb
2017-10-16AE008052.00 ppb
2017-10-16AE008342.80 ppb
2017-10-16AE008337.40 ppb
2017-10-16AE008072.00 ppb
2017-10-16AE008093.50 ppb
2017-10-16AE00816ND
2017-10-16AE008062.10 ppb
2017-10-17AE010221.30 ppb
2017-10-17AE01020ND
2017-10-17AE01024ND
2017-10-17AE010231.80 ppb
2017-10-17AE010211.80 ppb
2018-02-27AE157102.90 ppb
2018-02-27AE157125.40 ppb
2018-02-27AE15711ND
2018-02-27AE15709ND
2018-02-27AE15707ND
2018-02-27AE15708ND
2018-02-28AE160168.00 ppb
2018-02-28AE160154.20 ppb
2018-02-28AE160114.20 ppb
2018-02-28AE160073.60 ppb
2018-02-28AE160043.70 ppb
2018-02-28AE160094.80 ppb
2018-02-28AE160173.10 ppb
2018-02-28AE16003ND
2018-02-28AE160103.70 ppb
2018-02-28AE16013ND
2018-05-07AE252644.10 ppb
2018-05-07AE252835.30 ppb
2018-05-07AE252794.90 ppb
2018-05-07AE253116.00 ppb
2018-05-07AE252854.40 ppb
2018-05-07AE252754.10 ppb
2018-05-07AE252862.10 ppb
2018-05-07AE252954.50 ppb
2018-05-07AE252975.20 ppb
2018-05-07AE252674.50 ppb
2018-05-08AE25526ND
2018-05-08AE25525ND
2018-05-08AE25524ND
2018-05-08AE255571.60 ppb
2018-05-08AE255561.50 ppb
2018-05-08AE255222.10 ppb
2018-08-22AE380831.70 ppb
2018-08-22AE380785.20 ppb
2018-08-22AE38084ND
2018-08-22AE38085ND
2018-08-22AE38112ND
2018-08-23AE383564.10 ppb
2018-08-23AE383703.30 ppb
2018-08-23AE383651.40 ppb
2018-08-23AE383742.80 ppb
2018-08-23AE383711.30 ppb
2018-08-23AE383551.10 ppb
2018-08-23AE383531.70 ppb
2018-08-23AE383521.50 ppb
2018-08-23AE383512.40 ppb
2018-08-23AE383541.80 ppb
2018-08-31AE391321.10 ppb
2018-10-24AE444573.70 ppb
2018-10-24AE444603.30 ppb
2018-10-24AE444624.10 ppb
2018-10-24AE444642.20 ppb
2018-10-24AE444613.10 ppb
2018-10-24AE444597.40 ppb
2018-10-24AE44463ND
2018-10-24AE444583.90 ppb
2018-10-25AE445943.90 ppb
2018-10-25AE445931.60 ppb
2018-10-25AE445923.20 ppb
2018-10-25AE445951.30 ppb
2018-10-25AE44590ND
2018-10-25AE445961.80 ppb
2018-10-25AE445891.70 ppb
2018-10-25AE445911.20 ppb
2019-01-29AE519073.00 ppb
2019-01-29AE519043.60 ppb
2019-01-29AE519003.20 ppb
2019-01-29AE519031.20 ppb
2019-01-29AE51905ND
2019-01-29AE519061.10 ppb
2019-01-29AE519021.20 ppb
2019-01-29AE519011.50 ppb
2019-01-30AE521753.30 ppb
2019-01-30AE521613.30 ppb
2019-01-30AE521763.70 ppb
2019-01-30AE521501.50 ppb
2019-01-30AE521603.20 ppb
2019-01-30AE521714.40 ppb
2019-01-30AE521691.000 ppb
2019-01-30AE521703.70 ppb
2019-04-23AE63326ND
2019-04-23AE633241.20 ppb
2019-04-23AE633251.000 ppb
2019-04-23AE633231.000 ppb
2019-04-24AE634994.50 ppb
2019-04-24AE635005.80 ppb
2019-04-24AE635155.00 ppb
2019-04-24AE635044.70 ppb
2019-04-24AE635164.70 ppb
2019-04-24AE635012.80 ppb
2019-04-24AE635051.70 ppb
2019-04-24AE635074.30 ppb
2019-04-24AE635143.70 ppb
2019-04-24AE635022.00 ppb
2019-04-24AE635035.30 ppb
2019-04-25AE636861.30 ppb
2019-07-24AE757352.50 ppb
2019-07-24AE757272.20 ppb
2019-07-24AE757712.20 ppb
2019-07-24AE757342.40 ppb
2019-07-24AE757702.40 ppb
2019-07-24AE757331.30 ppb
2019-07-24AE757721.000 ppb
2019-07-24AE757291.90 ppb
2019-07-24AE757303.10 ppb
2019-07-24AE75774ND
2019-07-24AE757734.00 ppb
2019-07-25AE759211.10 ppb
2019-07-25AE75927ND
2019-07-25AE759181.80 ppb
2019-07-25AE759171.60 ppb
2019-07-25AE759191.90 ppb
2019-10-30AE879454.50 ppb
2019-10-30AE879444.50 ppb
2019-10-30AE879475.20 ppb
2019-10-30AE879461.000 ppb
2019-10-30AE879424.20 ppb
2019-10-30AE879614.40 ppb
2019-10-30AE879431.90 ppb
2019-10-30AE879603.80 ppb
2019-10-31AE881605.50 ppb
2019-10-31AE881576.20 ppb
2019-10-31AE881533.60 ppb
2019-10-31AE88159ND
2019-10-31AE88156ND
2019-10-31AE881542.10 ppb
2019-10-31AE881582.50 ppb
2019-10-31AE881551.000 ppb