Know Your Environment. Protect Your Health.

Dibromochloromethane

Zachary Water System

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

128

Samples

0

Samples exceeding legal limit (MCL)

112

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.76 ppb3224ND - 3.80 ppb
20191.83 ppb3226ND - 3.00 ppb
20202.45 ppb1615ND - 3.80 ppb
20213.62 ppb1615ND - 6.50 ppb
20222.56 ppb16161.50 ppb - 5.30 ppb
20233.39 ppb16161.30 ppb - 9.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-01353719060011.20 ppb
2018-02-01353719060022.50 ppb
2018-02-0135371906003ND
2018-02-01353719060042.70 ppb
2018-02-01353719060011.20 ppb
2018-02-01353719060022.50 ppb
2018-02-0135371906003ND
2018-02-01353719060042.70 ppb
2018-05-04353903350012.30 ppb
2018-05-04353903350022.60 ppb
2018-05-0435390335003ND
2018-05-04353903350042.40 ppb
2018-05-04353903350012.30 ppb
2018-05-04353903350022.60 ppb
2018-05-0435390335003ND
2018-05-04353903350042.40 ppb
2018-08-17354120070012.30 ppb
2018-08-17354120070023.80 ppb
2018-08-17354120070032.90 ppb
2018-08-1735412007004ND
2018-08-17354120070012.30 ppb
2018-08-17354120070023.80 ppb
2018-08-17354120070032.90 ppb
2018-08-1735412007004ND
2018-11-0235428205001ND
2018-11-02354282050021.70 ppb
2018-11-02354282050031.10 ppb
2018-11-02354282050042.70 ppb
2018-11-0235428205001ND
2018-11-02354282050021.70 ppb
2018-11-02354282050031.10 ppb
2018-11-02354282050042.70 ppb
2019-02-01354457550012.10 ppb
2019-02-01354457550022.40 ppb
2019-02-0135445755003ND
2019-02-01354457550042.40 ppb
2019-02-01354457550012.10 ppb
2019-02-01354457550022.40 ppb
2019-02-0135445755003ND
2019-02-01354457550042.40 ppb
2019-05-01354654080011.60 ppb
2019-05-01354654080022.90 ppb
2019-05-01354654080031.40 ppb
2019-05-01354654080042.60 ppb
2019-05-01354654080011.60 ppb
2019-05-01354654080022.90 ppb
2019-05-01354654080031.40 ppb
2019-05-01354654080042.60 ppb
2019-08-19354939800012.10 ppb
2019-08-19354939800022.40 ppb
2019-08-1935493980003ND
2019-08-19354939800042.60 ppb
2019-08-19354939800012.10 ppb
2019-08-19354939800022.40 ppb
2019-08-1935493980003ND
2019-08-19354939800042.60 ppb
2019-11-05355108750011.40 ppb
2019-11-05355108750023.00 ppb
2019-11-0535510875003ND
2019-11-05355108750042.40 ppb
2019-11-05355108750011.40 ppb
2019-11-05355108750023.00 ppb
2019-11-0535510875003ND
2019-11-05355108750042.40 ppb
2020-02-03355293490011.60 ppb
2020-02-03355293490021.60 ppb
2020-02-0335529349003ND
2020-02-03355293490041.70 ppb
2020-05-04355480190012.70 ppb
2020-05-04355480190023.00 ppb
2020-05-04355480190031.90 ppb
2020-05-04355480190043.50 ppb
2020-08-03355680150012.90 ppb
2020-08-03355680150022.80 ppb
2020-08-03355680150032.90 ppb
2020-08-03355680150043.00 ppb
2020-11-04355905280012.90 ppb
2020-11-04355905280023.40 ppb
2020-11-04355905280031.50 ppb
2020-11-04355905280043.80 ppb
2021-02-01356100660013.30 ppb
2021-02-01356100660023.30 ppb
2021-02-01356100660035.00 ppb
2021-02-01356100660043.50 ppb
2021-05-03356316890015.70 ppb
2021-05-0335631689002ND
2021-05-03356316890035.40 ppb
2021-05-03356316890046.50 ppb
2021-08-02356543060014.20 ppb
2021-08-02356543060022.80 ppb
2021-08-02356543060033.90 ppb
2021-08-02356543060043.50 ppb
2021-11-02356766420012.00 ppb
2021-11-02356766420023.60 ppb
2021-11-02356766420031.40 ppb
2021-11-02356766420043.80 ppb
2022-02-02356966770011.60 ppb
2022-02-02356966770021.50 ppb
2022-02-02356966770031.50 ppb
2022-02-02356966770042.70 ppb
2022-05-02357154310012.00 ppb
2022-05-02357154310022.90 ppb
2022-05-02357154310031.50 ppb
2022-05-02357154310043.50 ppb
2022-08-01357369730015.30 ppb
2022-08-01357369730022.80 ppb
2022-08-01357369730033.40 ppb
2022-08-01357369730043.40 ppb
2022-11-01357581470011.50 ppb
2022-11-01357581470022.60 ppb
2022-11-01357581470031.60 ppb
2022-11-01357581470043.20 ppb
2023-02-06357781730012.50 ppb
2023-02-06357781730022.80 ppb
2023-02-06357781730031.30 ppb
2023-02-06357781730044.00 ppb
2023-05-08357989880012.90 ppb
2023-05-08357989880023.30 ppb
2023-05-08357989880031.40 ppb
2023-05-08357989880044.20 ppb
2023-08-01358177240019.70 ppb
2023-08-01358177240023.30 ppb
2023-08-01358177240031.40 ppb
2023-08-01358177240044.10 ppb
2023-11-06358405320013.50 ppb
2023-11-06358405320024.10 ppb
2023-11-06358405320031.70 ppb
2023-11-06358405320044.10 ppb