Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromodichloromethane

Bellaire Public Water System

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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.03 ppb660.510 ppb - 2.50 ppb
20150.920 ppb220.540 ppb - 1.30 ppb
20160.255 ppb21ND - 0.510 ppb
20170.570 ppb220.540 ppb - 0.600 ppb
20181.81 ppb3011ND - 16.7 ppb
20191.11 ppb266ND - 6.32 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
2014-01-07A1401120982.50 ppb
2014-01-07A1401194991.000 ppb
2014-04-07A1401762830.510 ppb
2014-04-07A1401801180.670 ppb
2014-07-01A1402138800.860 ppb
2014-09-15A1402172910.650 ppb
2015-07-09A1502165890.540 ppb
2015-07-09A1503043011.30 ppb
2016-07-05A160375092ND
2016-07-05A1603993170.510 ppb
2017-07-03A1705047070.600 ppb
2017-07-03A1705047080.540 ppb
2018-04-02180401501.16 ppb
2018-04-0218040151ND
2018-04-0218040152ND
2018-05-0118050150ND
2018-05-0118050149ND
2018-05-01180501481.97 ppb
2018-06-0418060376ND
2018-06-04180603742.65 ppb
2018-06-0418060375ND
2018-07-0218070371ND
2018-07-02180703692.97 ppb
2018-07-0218070370ND
2018-07-091807094911.0 ppb
2018-07-091807095016.7 ppb
2018-08-0618081188ND
2018-08-0618081186ND
2018-08-06180811874.27 ppb
2018-08-0618081185ND
2018-09-0318091679ND
2018-09-0318091680ND
2018-09-03180916783.80 ppb
2018-10-0418101621ND
2018-10-0418101624ND
2018-10-04181016234.82 ppb
2018-11-0518111591ND
2018-11-0518111588ND
2018-11-05181115901.91 ppb
2018-12-0318121616ND
2018-12-03181216182.94 ppb
2018-12-0318121619ND
2019-02-0419021279ND
2019-02-0419021281ND
2019-02-0419021280ND
2019-04-0119041103ND
2019-04-01190411003.28 ppb
2019-04-0119041102ND
2019-05-0619050942ND
2019-05-06190509394.97 ppb
2019-05-0619040941ND
2019-06-03190613915.23 ppb
2019-06-0319061394ND
2019-06-0319061393ND
2019-07-0119071448ND
2019-07-0119071451ND
2019-07-0119071450ND
2019-07-0219071455ND
2019-07-0219071454ND
2019-07-22190734573.89 ppb
2019-07-2219073456ND
2019-08-0419081809ND
2019-08-04190818076.32 ppb
2019-08-0419081810ND
2019-09-0219091330ND
2019-09-0219091331ND
2019-09-02190913335.11 ppb
2019-09-0219091332ND