Know Your Environment. Protect Your Health.

Dibromochloromethane

Danbury Water Department

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.

 

193

Samples

0

Samples exceeding legal limit (MCL)

184

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.69 ppb3433ND - 5.70 ppb
20192.48 ppb34341.40 ppb - 4.60 ppb
20202.53 ppb35351.000 ppb - 4.80 ppb
20211.89 ppb26260.800 ppb - 3.70 ppb
20221.95 ppb2620ND - 3.89 ppb
20232.04 ppb3836ND - 3.80 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
2018-02-21210745GE2.74 ppb
2018-02-21210744GE1.89 ppb
2018-03-14211584GE2.09 ppb
2018-03-14211586GE1.96 ppb
2018-03-14211588GE2.01 ppb
2018-03-14211590GE3.17 ppb
2018-03-14211598GE1.91 ppb
2018-03-15211592GEND
2018-03-15211594GE2.02 ppb
2018-03-15211596GE3.23 ppb
2018-06-19215736GE2.09 ppb
2018-06-19215738GE2.39 ppb
2018-06-19215742GE3.66 ppb
2018-06-19215744GE3.79 ppb
2018-06-19215750GE2.18 ppb
2018-06-20215746GE2.30 ppb
2018-06-20215748GE3.68 ppb
2018-06-20215740GE2.09 ppb
2018-09-14DBP 2005054842.70 ppb
2018-09-14DBP 2005054862.60 ppb
2018-09-14DBP 2005054915.60 ppb
2018-09-14DBP 2005054933.50 ppb
2018-09-14DBP 2005054955.70 ppb
2018-09-14DBP 2005054972.30 ppb
2018-09-14DBP 2005054993.40 ppb
2018-09-17DBP 2005056585.60 ppb
2018-12-14DBP 2005160932.10 ppb
2018-12-14DBP 2005160941.50 ppb
2018-12-14DBP 2005160951.40 ppb
2018-12-14DBP 2005160963.10 ppb
2018-12-14DBP 2005160972.80 ppb
2018-12-14DBP 2005160981.20 ppb
2018-12-14DBP 2005160993.00 ppb
2018-12-14DBP 2005161001.60 ppb
2019-03-14DBP 2005247601.90 ppb
2019-03-14DBP 2005247611.50 ppb
2019-03-14DBP 2005247621.50 ppb
2019-03-14DBP 2005247632.70 ppb
2019-03-14DBP 2005247642.20 ppb
2019-03-14DBP 2005247651.80 ppb
2019-03-14DBP 2005247662.40 ppb
2019-03-14DBP 2005247671.60 ppb
2019-06-20DBP 2005372652.20 ppb
2019-06-20DBP 2005372661.90 ppb
2019-06-20DBP 2005372671.60 ppb
2019-06-20DBP 2005372683.20 ppb
2019-06-20DBP 2005372692.80 ppb
2019-06-20DBP 2005372702.10 ppb
2019-06-20DBP 2005372713.20 ppb
2019-06-20DBP 2005372721.80 ppb
2019-08-15VOC1 2005451212.20 ppb
2019-08-15VOC1 2005451222.10 ppb
2019-09-19DBP 2005496123.50 ppb
2019-09-19DBP 2005496132.20 ppb
2019-09-19DBP 2005496142.40 ppb
2019-09-19DBP 2005496153.40 ppb
2019-09-19DBP 2005496163.00 ppb
2019-09-19DBP 2005496173.60 ppb
2019-09-19DBP 2005496183.10 ppb
2019-09-19DBP 2005496192.70 ppb
2019-12-19DBP 2005609262.30 ppb
2019-12-19DBP 2005609271.80 ppb
2019-12-19DBP 2005609291.40 ppb
2019-12-19DBP 2005609301.90 ppb
2019-12-19DBP 2005609314.20 ppb
2019-12-19DBP 2005609324.60 ppb
2019-12-19DBP 2005609341.70 ppb
2019-12-19DBP 2005609353.80 ppb
2020-02-20VOC1 2005668932.40 ppb
2020-02-20VOC1 2005668921.30 ppb
2020-02-21VOC1 2005669822.10 ppb
2020-03-19DBP 2005699762.60 ppb
2020-03-19DBP 2005699772.20 ppb
2020-03-19DBP 2005699782.20 ppb
2020-03-19DBP 2005699794.80 ppb
2020-03-19DBP 2005699803.90 ppb
2020-03-19DBP 2005699811.70 ppb
2020-03-19DBP 2005699824.00 ppb
2020-03-19DBP 2005699832.00 ppb
2020-06-18DBP 2005797942.90 ppb
2020-06-18DBP 2005797952.10 ppb
2020-06-18DBP 2005797962.10 ppb
2020-06-18DBP 2005797973.80 ppb
2020-06-18DBP 2005797983.60 ppb
2020-06-18DBP 2005797991.70 ppb
2020-06-18DBP 2005798004.70 ppb
2020-06-18DBP 2005798011.80 ppb
2020-09-17DBP 2005906612.80 ppb
2020-09-17DBP 2005906622.00 ppb
2020-09-17DBP 2005906632.80 ppb
2020-09-17DBP 2005906643.40 ppb
2020-09-17DBP 2005906651.80 ppb
2020-09-17DBP 2005906661.40 ppb
2020-09-17DBP 2005906673.20 ppb
2020-09-17DBP 2005906682.90 ppb
2020-12-18DBP 2006015981.70 ppb
2020-12-18DBP 2006015991.50 ppb
2020-12-18DBP 2006016001.000 ppb
2020-12-18DBP 2006016012.60 ppb
2020-12-18DBP 2006016022.80 ppb
2020-12-18DBP 2006016031.90 ppb
2020-12-18DBP 2006016043.20 ppb
2020-12-18DBP 2006016051.60 ppb
2021-01-21VOC1 2006045711.60 ppb
2021-01-21VOC1 2006045700.800 ppb
2021-03-18DBP 2006103161.60 ppb
2021-03-18DBP 2006103171.50 ppb
2021-03-18DBP 2006103181.10 ppb
2021-03-18DBP 2006103192.40 ppb
2021-03-18DBP 2006103203.70 ppb
2021-03-18DBP 2006103211.60 ppb
2021-03-18DBP 2006103222.60 ppb
2021-03-18DBP 2006103231.30 ppb
2021-06-17DBP 2006213411.80 ppb
2021-06-17DBP 2006213421.70 ppb
2021-06-17DBP 2006213432.90 ppb
2021-06-17DBP 2006213442.90 ppb
2021-06-17DBP 2006213451.20 ppb
2021-06-17DBP 2006213461.40 ppb
2021-06-17DBP 2006213472.50 ppb
2021-06-17DBP 2006213481.80 ppb
2021-12-13277826X0.970 ppb
2021-12-142778221.62 ppb
2021-12-14277828X2.84 ppb
2021-12-14277830X2.63 ppb
2021-12-14277832X1.26 ppb
2021-12-14277834X2.60 ppb
2021-12-14277836X1.32 ppb
2021-12-14277824X1.46 ppb
2022-01-202793261.95 ppb
2022-01-20279325ND
2022-06-142882963.42 ppb
2022-06-142882983.08 ppb
2022-06-142883023.21 ppb
2022-06-142883041.56 ppb
2022-06-152883001.84 ppb
2022-06-152882901.82 ppb
2022-06-152882921.58 ppb
2022-06-152882941.32 ppb
2022-09-142962892.80 ppb
2022-09-152962913.30 ppb
2022-09-152962933.50 ppb
2022-09-152962953.16 ppb
2022-09-152962973.89 ppb
2022-09-152962993.00 ppb
2022-09-152963012.70 ppb
2022-09-152963073.87 ppb
2022-12-13303027ND
2022-12-133030301.72 ppb
2022-12-13303034ND
2022-12-133030361.33 ppb
2022-12-13303038ND
2022-12-143030321.64 ppb
2022-12-15303025ND
2022-12-15303023ND
2023-02-09306232ND
2023-02-09306231ND
2023-03-063078131.62 ppb
2023-03-073078111.55 ppb
2023-03-073078121.21 ppb
2023-03-073078171.82 ppb
2023-03-073078181.000 ppb
2023-03-073078141.31 ppb
2023-03-073078161.000 ppb
2023-03-083078151.02 ppb
2023-06-06N3F0423-01PPS2.50 ppb
2023-06-06N3F0423-03PPS1.80 ppb
2023-06-06N3F0423-06PPS2.30 ppb
2023-06-06N3F0423-08PPS1.60 ppb
2023-06-06N3F0423-012.50 ppb
2023-06-06N3F0423-031.80 ppb
2023-06-06N3F0423-062.30 ppb
2023-06-06N3F0423-081.60 ppb
2023-06-07N3F0423-073.20 ppb
2023-06-07N3F0423-043.30 ppb
2023-06-07N3F0423-022.10 ppb
2023-06-08N3F0423-053.00 ppb
2023-09-12CO999822.70 ppb
2023-09-12CO999832.30 ppb
2023-09-12CO999891.90 ppb
2023-09-13CO999863.70 ppb
2023-09-13CO999873.50 ppb
2023-09-13CO999883.80 ppb
2023-09-14CO999841.80 ppb
2023-09-14CO999853.40 ppb
2023-12-11CP682131.000 ppb
2023-12-12CP682143.20 ppb
2023-12-12CP682111.80 ppb
2023-12-12CP682121.30 ppb
2023-12-12CP682161.60 ppb
2023-12-12CP682173.20 ppb
2023-12-12CP682181.20 ppb
2023-12-13CP682152.60 ppb