Bromodichloromethane
Flemington Water Department
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.
112
Samples
0
Samples exceeding legal limit (MCL)
85
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.877 ppb | 21 | 12 | ND - 4.55 ppb |
| 2015 | 0.979 ppb | 21 | 16 | ND - 5.43 ppb |
| 2016 | 2.00 ppb | 18 | 15 | ND - 8.10 ppb |
| 2017 | 1.40 ppb | 17 | 14 | ND - 5.50 ppb |
| 2018 | 1.26 ppb | 18 | 13 | ND - 5.70 ppb |
| 2019 | 1.59 ppb | 17 | 15 | ND - 6.70 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 |
|---|---|---|
| 2014-01-23 | L4860593-4 | 0.0800 ppb |
| 2014-02-19 | L4899197-2 | ND |
| 2014-02-19 | L4899197-1 | 2.13 ppb |
| 2014-03-20 | L4860592-1 | 0.280 ppb |
| 2014-03-20 | L4952571-1 | 0.110 ppb |
| 2014-03-20 | L4985003-2 | ND |
| 2014-04-01 | L4973769-4 | 1.12 ppb |
| 2014-05-15 | L5017978-2 | ND |
| 2014-05-15 | L5017978-1 | 3.78 ppb |
| 2014-06-04 | L4973768-1 | ND |
| 2014-06-04 | L5096201-2 | ND |
| 2014-07-10 | L5104459-2 | ND |
| 2014-08-20 | L5162101-2 | 1.29 ppb |
| 2014-08-20 | L5162101-1 | 4.55 ppb |
| 2014-09-03 | L5235167-1 | ND |
| 2014-09-03 | L5104460-2 | ND |
| 2014-10-01 | L5241116-2 | 0.180 ppb |
| 2014-11-19 | L5286814-2 | 3.80 ppb |
| 2014-11-19 | L5286814-1 | 0.810 ppb |
| 2014-12-09 | L5356526-1 | 0.290 ppb |
| 2014-12-09 | L5241117-2 | ND |
| 2015-01-07 | L5367823-2 | 0.110 ppb |
| 2015-02-17 | L5408434-2 | 0.370 ppb |
| 2015-02-17 | L5408434-1 | 1.56 ppb |
| 2015-02-25 | L5467007-1 | 0.170 ppb |
| 2015-02-25 | L5367824-2 | ND |
| 2015-04-01 | L5490176-1 | 0.370 ppb |
| 2015-04-01 | L5490176-2 | 0.170 ppb |
| 2015-04-01 | L5490180-2 | 0.0900 ppb |
| 2015-05-15 | L5540330-2 | 0.950 ppb |
| 2015-05-15 | L5540330-1 | 3.52 ppb |
| 2015-07-08 | L5640077-1 | ND |
| 2015-07-08 | L5639802-1 | 0.190 ppb |
| 2015-07-08 | L5639802-2 | 0.730 ppb |
| 2015-07-08 | L5639803-2 | ND |
| 2015-08-18 | L5711719-2 | 1.60 ppb |
| 2015-08-18 | L5711719-1 | 5.43 ppb |
| 2015-10-13 | L5820753-2 | ND |
| 2015-10-30 | L5884149-1 | 0.160 ppb |
| 2015-10-30 | L5820754-2 | ND |
| 2015-11-16 | L5863759-2 | 0.970 ppb |
| 2015-11-16 | L5863759-1 | 4.17 ppb |
| 2016-01-22 | L5969093-1 | 0.280 ppb |
| 2016-01-22 | L5969093-2 | ND |
| 2016-01-22 | L5969094-2 | ND |
| 2016-02-16 | L6016823-2 | 1.60 ppb |
| 2016-02-16 | L6016823-1 | 3.30 ppb |
| 2016-04-13 | L6131101-3 | 0.1000 ppb |
| 2016-05-16 | L6178861-2 | 2.00 ppb |
| 2016-05-16 | L6178861-1 | 6.00 ppb |
| 2016-07-06 | L6317313-1 | 0.700 ppb |
| 2016-07-06 | L6317313-2 | 0.1000 ppb |
| 2016-07-06 | L6317314-2 | ND |
| 2016-08-15 | L6372015-2 | 8.10 ppb |
| 2016-08-15 | L6372015-1 | 7.10 ppb |
| 2016-10-03 | L6468752-2 | 0.1000 ppb |
| 2016-10-03 | L6468753-2 | 0.200 ppb |
| 2016-10-03 | L6468752-1 | 0.500 ppb |
| 2016-11-15 | L6509536-2 | 1.10 ppb |
| 2016-11-15 | L6509536-1 | 4.90 ppb |
| 2017-01-04 | L6599687-2 | ND |
| 2017-01-06 | L6599688-2 | ND |
| 2017-02-16 | L6634926-2 | 1.10 ppb |
| 2017-02-16 | L6634926-1 | 3.80 ppb |
| 2017-04-03 | L6722639-1 | 0.1000 ppb |
| 2017-05-15 | L6762089-2 | 1.10 ppb |
| 2017-05-15 | L6762089-1 | 5.50 ppb |
| 2017-06-19 | L6722640-2 | 0.200 ppb |
| 2017-07-10 | L6857539-1 | 0.1000 ppb |
| 2017-08-21 | L6903102-2 | 1.50 ppb |
| 2017-08-21 | L6903102-1 | 4.60 ppb |
| 2017-10-05 | L6951514-1 | 0.1000 ppb |
| 2017-10-17 | L6951663-1 | 0.200 ppb |
| 2017-10-17 | L6857540-2 | ND |
| 2017-11-15 | L6960727-2 | 1.30 ppb |
| 2017-11-15 | L6960727-1 | 4.00 ppb |
| 2017-12-21 | L6951515-2 | 0.200 ppb |
| 2018-01-30 | 3863798 | ND |
| 2018-02-16 | L6994197-2 | 0.700 ppb |
| 2018-02-16 | L6994197-1 | 2.70 ppb |
| 2018-02-23 | 8024362-02 | ND |
| 2018-04-06 | L7009448-1 | 0.200 ppb |
| 2018-05-16 | L7016291-2 | 0.800 ppb |
| 2018-05-16 | L7016291-1 | 4.50 ppb |
| 2018-05-22 | L7009449-2 | 0.300 ppb |
| 2018-07-12 | L7041024-1 | 0.200 ppb |
| 2018-08-16 | L7050229-2 | 1.10 ppb |
| 2018-08-16 | L7050229-1 | 3.60 ppb |
| 2018-09-18 | L7041025-2 | ND |
| 2018-09-25 | L7041197-1 | ND |
| 2018-10-02 | L7071673-1 | 0.300 ppb |
| 2018-11-14 | L7079983-2 | 1.90 ppb |
| 2018-11-14 | L7079983-1 | 5.70 ppb |
| 2018-12-18 | L7071823-1 | 0.600 ppb |
| 2018-12-18 | L7071674-2 | ND |
| 2019-01-08 | L7090473-1 | 0.200 ppb |
| 2019-02-07 | L7090474-2 | ND |
| 2019-02-22 | L7099711-2 | 1.000 ppb |
| 2019-02-22 | L7099711-1 | 3.50 ppb |
| 2019-04-04 | L7111364-1 | 0.300 ppb |
| 2019-05-15 | L7116356-2 | 1.30 ppb |
| 2019-05-15 | L7116356-1 | 6.70 ppb |
| 2019-06-19 | L7111365-2 | 0.400 ppb |
| 2019-07-03 | L7134238-1 | ND |
| 2019-08-15 | L7146391-2 | 1.20 ppb |
| 2019-08-15 | L7146391-1 | 3.20 ppb |
| 2019-08-23 | L7134239-2 | 0.400 ppb |
| 2019-10-02 | L7160613-1 | 0.200 ppb |
| 2019-11-15 | L7172742-2 | 1.10 ppb |
| 2019-11-15 | L7172742-1 | 5.70 ppb |
| 2019-11-20 | L7160780-1 | 0.500 ppb |
| 2019-11-20 | L7160614-2 | 1.30 ppb |