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EWG's Tap Water Database — 2021 UPDATE

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Bromodichloromethane

Old North Utilities Services/Ft. Bragg

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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

 

193

Samples

0

Samples exceeding legal limit (MCL)

193

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201411.4 ppb32326.20 ppb - 19.0 ppb
201513.3 ppb33336.40 ppb - 22.8 ppb
201612.2 ppb32326.60 ppb - 21.0 ppb
201711.8 ppb32322.70 ppb - 23.0 ppb
201813.4 ppb32327.90 ppb - 24.0 ppb
201913.7 ppb32322.80 ppb - 27.1 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-0529692846.40 ppb
2014-02-0529692876.50 ppb
2014-02-0529692906.20 ppb
2014-02-0529692936.90 ppb
2014-02-0529692967.00 ppb
2014-02-0529692997.40 ppb
2014-02-0529693027.90 ppb
2014-02-0529693056.50 ppb
2014-05-0530233668.70 ppb
2014-05-053021541-429.10 ppb
2014-05-053021537-389.50 ppb
2014-05-0530217429.90 ppb
2014-05-05302174510.00 ppb
2014-05-05302174811.0 ppb
2014-05-0530217548.00 ppb
2014-05-05302175710.00 ppb
2014-08-04307837719.0 ppb
2014-08-04307838315.0 ppb
2014-08-04307838614.0 ppb
2014-08-04307838915.0 ppb
2014-08-04307839216.0 ppb
2014-08-04307837117.0 ppb
2014-08-04307837413.0 ppb
2014-08-04307838016.0 ppb
2014-11-031411016915.0 ppb
2014-11-031411017015.0 ppb
2014-11-031411017511.0 ppb
2014-11-031411017614.0 ppb
2014-11-031411017715.0 ppb
2014-11-031411017814.0 ppb
2014-11-031411017415.0 ppb
2014-11-031411017310.00 ppb
2015-02-098.30 ppb
2015-02-099.10 ppb
2015-02-099.00 ppb
2015-02-099.30 ppb
2015-02-098.80 ppb
2015-02-097.50 ppb
2015-02-096.40 ppb
2015-02-097.70 ppb
2015-05-0411.7 ppb
2015-05-0413.4 ppb
2015-05-0412.9 ppb
2015-05-0411.3 ppb
2015-05-0412.1 ppb
2015-05-0413.2 ppb
2015-05-0411.6 ppb
2015-05-0413.0 ppb
2015-05-0413.2 ppb
2015-08-0316.7 ppb
2015-08-0318.9 ppb
2015-08-0318.8 ppb
2015-08-0316.1 ppb
2015-08-0317.8 ppb
2015-08-0320.6 ppb
2015-08-0316.8 ppb
2015-08-0322.8 ppb
2015-11-0212.9 ppb
2015-11-0213.9 ppb
2015-11-0213.8 ppb
2015-11-0213.2 ppb
2015-11-0213.0 ppb
2015-11-0214.3 ppb
2015-11-0215.3 ppb
2015-11-0213.9 ppb
2016-02-0116020327-0018.70 ppb
2016-02-0116020328-0016.60 ppb
2016-02-0116020323-0017.30 ppb
2016-02-0116020324-0018.00 ppb
2016-02-0116020325-0017.00 ppb
2016-02-0116020326-0018.40 ppb
2016-02-0116020322-0017.60 ppb
2016-02-0216020320-0017.10 ppb
2016-05-02344046311.0 ppb
2016-05-02344046410.00 ppb
2016-05-02344046513.0 ppb
2016-05-02344046611.0 ppb
2016-05-0234404679.10 ppb
2016-05-02344046812.0 ppb
2016-05-02344046911.0 ppb
2016-05-02344047011.0 ppb
2016-08-01351466221.0 ppb
2016-08-01351466318.0 ppb
2016-08-01351466517.0 ppb
2016-08-02351466420.0 ppb
2016-08-02351466617.0 ppb
2016-08-02351466721.0 ppb
2016-08-02351466821.0 ppb
2016-08-02351466917.0 ppb
2016-11-0835833599.70 ppb
2016-11-08358336012.0 ppb
2016-11-08358336112.0 ppb
2016-11-0835833629.60 ppb
2016-11-08358336311.0 ppb
2016-11-08358336410.00 ppb
2016-11-08358336513.0 ppb
2016-11-08358336611.0 ppb
2017-02-0836359777.10 ppb
2017-02-0836359787.60 ppb
2017-02-0836359798.60 ppb
2017-02-0836359808.10 ppb
2017-02-0936359819.60 ppb
2017-02-0936359829.50 ppb
2017-02-0936359838.00 ppb
2017-02-0936359847.10 ppb
2017-05-01368855914.0 ppb
2017-05-0136885609.90 ppb
2017-05-01368856110.00 ppb
2017-05-01368856718.0 ppb
2017-05-01368856913.0 ppb
2017-05-01368857111.0 ppb
2017-05-0236885652.70 ppb
2017-05-0236885667.50 ppb
2017-08-28376794823.0 ppb
2017-08-28376795016.0 ppb
2017-08-28376795211.0 ppb
2017-08-28376795416.0 ppb
2017-08-28376795613.0 ppb
2017-08-28376795817.0 ppb
2017-08-28376796011.0 ppb
2017-08-28376796219.0 ppb
2017-11-08381762911.0 ppb
2017-11-08381763113.0 ppb
2017-11-08381763312.0 ppb
2017-11-08381763511.0 ppb
2017-11-08381765213.0 ppb
2017-11-08381763812.0 ppb
2017-11-08381764015.0 ppb
2017-11-16382322512.0 ppb
2018-02-083868633 9.20 ppb
2018-02-083868635 9.10 ppb
2018-02-083868637 8.50 ppb
2018-02-083868639 9.30 ppb
2018-02-083868641 9.70 ppb
2018-02-083868643 9.50 ppb
2018-02-083868645 9.90 ppb
2018-02-083868647 11.0 ppb
2018-05-073933436 15.0 ppb
2018-05-073933438 12.0 ppb
2018-05-073933440 7.90 ppb
2018-05-083933442 14.0 ppb
2018-05-083933444 16.0 ppb
2018-05-083933446 13.0 ppb
2018-05-083933448 13.0 ppb
2018-05-153940683 14.0 ppb
2018-08-094017794 19.0 ppb
2018-08-204034181 17.0 ppb
2018-08-214034175 14.0 ppb
2018-08-214034176 14.0 ppb
2018-08-214034177 19.0 ppb
2018-08-214034179 18.0 ppb
2018-08-214034180 24.0 ppb
2018-08-234034178 14.0 ppb
2018-11-074116581 14.0 ppb
2018-11-074116585 14.0 ppb
2018-11-074116587 13.0 ppb
2018-11-074116589 14.0 ppb
2018-11-084116583 13.0 ppb
2018-11-084116591 12.0 ppb
2018-11-084116593 16.0 ppb
2018-11-084116595 14.0 ppb
2019-02-064192179-1 6.60 ppb
2019-02-064192181-1 5.40 ppb
2019-02-064192185-1 2.80 ppb
2019-02-064192187-1 5.70 ppb
2019-02-064192189-1 6.20 ppb
2019-02-064192191-1 6.40 ppb
2019-02-064192193-1 5.30 ppb
2019-02-074192195-1 4.10 ppb
2019-05-15190924-01 11.6 ppb
2019-05-15190924-03 12.8 ppb
2019-05-15190924-04 12.2 ppb
2019-05-15190924-05 13.5 ppb
2019-05-15190924-06 12.8 ppb
2019-05-15190924-07 12.9 ppb
2019-05-15190924-08 12.5 ppb
2019-05-15190924-09 13.7 ppb
2019-08-20191592-01 12.8 ppb
2019-08-20191592-04 18.2 ppb
2019-08-20191592-05 16.6 ppb
2019-08-20191592-07 19.1 ppb
2019-08-21191592-02 22.8 ppb
2019-08-21191592-06 23.2 ppb
2019-08-21191592-08 27.1 ppb
2019-08-22191598-01 26.7 ppb
2019-11-19192264-01 16.1 ppb
2019-11-21192295-01 17.1 ppb
2019-11-25192330-01 16.0 ppb
2019-11-25192330-02 16.7 ppb
2019-11-25192330-03 15.5 ppb
2019-11-25192330-04 15.3 ppb
2019-11-25192330-05 15.5 ppb
2019-11-25192330-06 16.3 ppb