Know Your Environment. Protect Your Health.

Dibromochloromethane

St Charles Water District 1 East Bank

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.

 

224

Samples

0

Samples exceeding legal limit (MCL)

194

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.96 ppb3228ND - 7.90 ppb
20193.18 ppb6454ND - 6.00 ppb
20203.04 ppb3224ND - 7.60 ppb
20212.57 ppb3227ND - 6.00 ppb
20224.49 ppb3229ND - 8.60 ppb
20233.84 ppb32320.820 ppb - 7.80 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
2018-03-13353801520011.10 ppb
2018-03-1335380152002ND
2018-03-13353801520031.000 ppb
2018-03-1335380152004ND
2018-03-13353801520011.10 ppb
2018-03-1335380152002ND
2018-03-13353801520031.000 ppb
2018-03-1335380152004ND
2018-06-12353981210015.60 ppb
2018-06-12353981210025.60 ppb
2018-06-12353981210035.00 ppb
2018-06-12353981210045.00 ppb
2018-06-12353981210015.60 ppb
2018-06-12353981210025.60 ppb
2018-06-12353981210035.00 ppb
2018-06-12353981210045.00 ppb
2018-09-20354194600017.40 ppb
2018-09-20354194600027.40 ppb
2018-09-20354194600037.70 ppb
2018-09-20354194600047.90 ppb
2018-09-20354194600017.40 ppb
2018-09-20354194600027.40 ppb
2018-09-20354194600037.70 ppb
2018-09-20354194600047.90 ppb
2018-12-13354372520012.40 ppb
2018-12-13354372520022.40 ppb
2018-12-13354372520032.30 ppb
2018-12-13354372520042.50 ppb
2018-12-13354372520012.40 ppb
2018-12-13354372520022.40 ppb
2018-12-13354372520032.30 ppb
2018-12-13354372520042.50 ppb
2019-03-1435454705001ND
2019-03-1435454705002ND
2019-03-1435454705003ND
2019-03-1435454705004ND
2019-03-1435454705001ND
2019-03-1435454705002ND
2019-03-1435454705003ND
2019-03-1435454705004ND
2019-06-12354756930011.50 ppb
2019-06-12354756930021.30 ppb
2019-06-12354756930031.30 ppb
2019-06-12354756930041.40 ppb
2019-06-12354756930011.50 ppb
2019-06-12354756930021.30 ppb
2019-06-12354756930031.30 ppb
2019-06-12354756930041.40 ppb
2019-09-05354952030015.00 ppb
2019-09-05354952030025.20 ppb
2019-09-05354952030035.10 ppb
2019-09-05354952030045.80 ppb
2019-09-05354952030055.30 ppb
2019-09-05354952030066.00 ppb
2019-09-05354952030075.60 ppb
2019-09-05354952030085.60 ppb
2019-09-05354952030015.00 ppb
2019-09-05354952030025.20 ppb
2019-09-05354952030035.10 ppb
2019-09-05354952030045.80 ppb
2019-09-05354952030055.30 ppb
2019-09-05354952030066.00 ppb
2019-09-05354952030075.60 ppb
2019-09-05354952030085.60 ppb
2019-10-10355044230014.40 ppb
2019-10-10355044230024.50 ppb
2019-10-10355044230034.20 ppb
2019-10-10355044230044.80 ppb
2019-10-10355044230054.90 ppb
2019-10-10355044230064.70 ppb
2019-10-10355044230074.70 ppb
2019-10-10355044230085.10 ppb
2019-10-10355044230014.40 ppb
2019-10-10355044230024.50 ppb
2019-10-10355044230034.20 ppb
2019-10-10355044230044.80 ppb
2019-10-10355044230054.90 ppb
2019-10-10355044230064.70 ppb
2019-10-10355044230074.70 ppb
2019-10-10355044230085.10 ppb
2019-12-10355181260011.90 ppb
2019-12-10355181260021.90 ppb
2019-12-10355181260032.00 ppb
2019-12-10355181260042.40 ppb
2019-12-10355181260052.50 ppb
2019-12-10355181260062.30 ppb
2019-12-1035518126007ND
2019-12-10355181260082.50 ppb
2019-12-10355181260011.90 ppb
2019-12-10355181260021.90 ppb
2019-12-10355181260032.00 ppb
2019-12-10355181260042.40 ppb
2019-12-10355181260052.50 ppb
2019-12-10355181260062.30 ppb
2019-12-1035518126007ND
2019-12-10355181260082.50 ppb
2020-03-0535535524001ND
2020-03-0535535524002ND
2020-03-0535535524003ND
2020-03-0535535524004ND
2020-03-0535535524005ND
2020-03-0535535524006ND
2020-03-0535535524007ND
2020-03-0535535524008ND
2020-06-18355577730011.20 ppb
2020-06-18355577730021.30 ppb
2020-06-18355577730031.30 ppb
2020-06-18355577730041.40 ppb
2020-06-18355577730051.40 ppb
2020-06-18355577730061.40 ppb
2020-06-18355577730071.50 ppb
2020-06-18355577730081.40 ppb
2020-09-18355790100015.20 ppb
2020-09-18355790100025.20 ppb
2020-09-18355790100037.30 ppb
2020-09-18355790100047.60 ppb
2020-09-18355790100057.00 ppb
2020-09-18355790100067.50 ppb
2020-09-18355790100077.30 ppb
2020-09-18355790100087.60 ppb
2020-12-11355985460013.80 ppb
2020-12-11355985460023.80 ppb
2020-12-11355985460033.50 ppb
2020-12-11355985460044.10 ppb
2020-12-11355985460054.30 ppb
2020-12-11355985460064.20 ppb
2020-12-11355985460073.80 ppb
2020-12-11355985460084.10 ppb
2021-03-1135618677001ND
2021-03-11356186770022.10 ppb
2021-03-1135618677003ND
2021-03-1135618677004ND
2021-03-11356186770052.50 ppb
2021-03-1135618677006ND
2021-03-1135618677007ND
2021-03-11356186770082.70 ppb
2021-06-09356397430011.50 ppb
2021-06-09356397430021.60 ppb
2021-06-09356397430031.60 ppb
2021-06-09356397430041.60 ppb
2021-06-09356397430051.70 ppb
2021-06-09356397430061.50 ppb
2021-06-09356397430071.70 ppb
2021-06-09356397430081.70 ppb
2021-09-22356660650012.60 ppb
2021-09-22356660650022.70 ppb
2021-09-22356660650032.70 ppb
2021-09-22356660650042.80 ppb
2021-09-22356660650052.60 ppb
2021-09-22356660650062.30 ppb
2021-09-22356660650072.90 ppb
2021-09-22356660650082.50 ppb
2021-12-21356859490014.90 ppb
2021-12-21356859490025.20 ppb
2021-12-21356859490035.30 ppb
2021-12-21356859490044.80 ppb
2021-12-21356859490055.30 ppb
2021-12-21356859490064.80 ppb
2021-12-21356859490074.60 ppb
2021-12-21356859490086.00 ppb
2022-03-02357015600011.70 ppb
2022-03-02357015600021.90 ppb
2022-03-02357015600031.70 ppb
2022-03-02357015600041.90 ppb
2022-03-0235701560005ND
2022-03-0235701560006ND
2022-03-0235701560007ND
2022-03-02357015600082.50 ppb
2022-06-09357257560012.70 ppb
2022-06-09357257560022.50 ppb
2022-06-09357257560032.30 ppb
2022-06-09357257560042.90 ppb
2022-06-09357257560052.70 ppb
2022-06-09357257560062.50 ppb
2022-06-09357257560072.60 ppb
2022-06-09357257560082.70 ppb
2022-09-15357472180017.30 ppb
2022-09-15357472180027.10 ppb
2022-09-15357472180038.20 ppb
2022-09-15357472180048.30 ppb
2022-09-15357472180058.60 ppb
2022-09-15357472180068.20 ppb
2022-09-15357472180078.20 ppb
2022-09-15357472180087.90 ppb
2022-12-15357672030015.80 ppb
2022-12-15357672030025.90 ppb
2022-12-15357672030035.60 ppb
2022-12-15357672030046.30 ppb
2022-12-15357672030056.50 ppb
2022-12-15357672030066.20 ppb
2022-12-15357672030076.20 ppb
2022-12-15357672030086.70 ppb
2023-03-14357859000010.830 ppb
2023-03-14357859000020.970 ppb
2023-03-14357859000030.820 ppb
2023-03-14357859000041.30 ppb
2023-03-14357859000051.30 ppb
2023-03-14357859000061.10 ppb
2023-03-14357859000071.10 ppb
2023-03-14357859000081.20 ppb
2023-06-09358055530011.70 ppb
2023-06-09358055530021.70 ppb
2023-06-09358055530031.90 ppb
2023-06-09358055530042.20 ppb
2023-06-09358055530051.90 ppb
2023-06-09358055530062.20 ppb
2023-06-09358055530072.10 ppb
2023-06-09358055530081.80 ppb
2023-09-06358261170014.90 ppb
2023-09-06358261170024.80 ppb
2023-09-06358261170035.30 ppb
2023-09-06358261170045.70 ppb
2023-09-06358261170055.40 ppb
2023-09-06358261170065.70 ppb
2023-09-06358261170075.50 ppb
2023-09-06358261170086.50 ppb
2023-12-19358493650017.10 ppb
2023-12-19358493650026.60 ppb
2023-12-19358493650037.80 ppb
2023-12-19358493650046.70 ppb
2023-12-19358493650056.40 ppb
2023-12-19358493650067.00 ppb
2023-12-19358493650076.40 ppb
2023-12-19358493650087.00 ppb