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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Jefferson County W and S District - M

NOTE: Jefferson County W and S District - M purchases water from Toronto Public Water System which is required to test for dibromoacetic acid. Sample information shown below was taken by Toronto Public 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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

27

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20124.61 ppb1614ND - 8.80 ppb
20132.38 ppb15151.30 ppb - 3.40 ppb
20141.83 ppb1613ND - 3.30 ppb
20153.81 ppb16161.40 ppb - 7.50 ppb
20162.71 ppb1615ND - 6.70 ppb
20170.900 ppb169ND - 3.20 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

NOTE: Jefferson County W and S District - M purchases water from Toronto Public Water System which is required to test for dibromoacetic acid. Sample information shown below was taken by Toronto Public Water System.

Date Lab ID Result
2012-01-109900088487ND
2012-04-109900003435ND
2012-08-2899000541596.70 ppb
2012-11-2799000716111.60 ppb
2013-01-0899000718961.80 ppb
2013-01-0899000034361.90 ppb
2013-04-0999000105252.30 ppb
2013-04-099900010526ND
2013-07-0999001289851.30 ppb
2013-07-0999001289871.60 ppb
2013-10-08A1301477456.80 ppb
2013-10-08A1301336886.60 ppb
2014-01-08A140079063ND
2014-01-08A140124485ND
2014-04-08A1401830761.20 ppb
2014-04-08A1401364271.60 ppb
2014-07-08A1402139181.30 ppb
2014-07-08A140213919ND
2014-10-14A1402166274.70 ppb
2014-10-14A1402166254.70 ppb
2015-01-13A150231656ND
2015-01-13A150231654ND
2015-04-14A150259227ND
2015-04-14A150231653ND
2015-07-14A150310879ND
2015-07-14A150310877ND
2015-10-13A1501828503.70 ppb
2015-10-13A1501828513.20 ppb
2016-01-11A160338170ND
2016-01-11A1603381711.000 ppb
2016-04-12A1603747422.00 ppb
2016-04-12A1603747431.60 ppb
2016-07-12A1603994012.80 ppb
2016-07-12A1603993993.50 ppb
2016-10-11A1604274897.50 ppb
2016-10-11A1604274907.80 ppb
2017-01-10A170467801ND
2017-01-10A170453287ND
2017-04-11A170477078ND
2017-04-11A170477079ND
2017-07-11A1704980951.10 ppb
2017-07-11A1704980961.20 ppb
2017-10-10A1700790613.10 ppb
2017-10-10A1700790603.30 ppb