Dibromochloromethane
United Water Pennsylvania
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.
233
Samples
0
Samples exceeding legal limit (MCL)
185
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 2.95 ppb | 33 | 33 | 0.600 ppb - 11.3 ppb |
| 2015 | 3.04 ppb | 40 | 40 | 0.560 ppb - 9.90 ppb |
| 2016 | 2.11 ppb | 40 | 31 | ND - 7.60 ppb |
| 2017 | 0.950 ppb | 40 | 27 | ND - 4.70 ppb |
| 2018 | 0.687 ppb | 40 | 18 | ND - 2.40 ppb |
| 2019 | 1.55 ppb | 40 | 36 | ND - 7.95 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 |
|---|---|---|
| 2014-02-11 | 1071346001 | 1.40 ppb |
| 2014-02-11 | 1071346002 | 1.60 ppb |
| 2014-02-11 | 1071346003 | 1.30 ppb |
| 2014-02-11 | 1071346004 | 1.40 ppb |
| 2014-02-11 | 1071346005 | 1.60 ppb |
| 2014-02-11 | 1071346006 | 1.40 ppb |
| 2014-02-11 | 1071346007 | 1.60 ppb |
| 2014-02-11 | 1071346008 | 1.20 ppb |
| 2014-05-09 | 2006078001 | 1.30 ppb |
| 2014-05-09 | 2006078002 | 0.800 ppb |
| 2014-05-09 | 2006078003 | 1.30 ppb |
| 2014-05-09 | 2006078004 | 0.840 ppb |
| 2014-05-09 | 2006078005 | 0.600 ppb |
| 2014-05-09 | 2006078006 | 0.630 ppb |
| 2014-05-09 | 2006078007 | 1.20 ppb |
| 2014-05-09 | 2006078008 | 1.30 ppb |
| 2014-08-11 | 2022716001 | 7.00 ppb |
| 2014-08-11 | 2022716002 | 4.60 ppb |
| 2014-08-11 | 2022716003 | 7.50 ppb |
| 2014-08-11 | 2022716004 | 2.60 ppb |
| 2014-08-11 | 2022716005 | 4.80 ppb |
| 2014-08-11 | 2022716006 | 2.90 ppb |
| 2014-08-11 | 2022716007 | 11.3 ppb |
| 2014-08-11 | 2022716008 | 5.90 ppb |
| 2014-11-10 | 2039165001 | 5.10 ppb |
| 2014-11-10 | 2039165002 | 1.80 ppb |
| 2014-11-10 | 2039165003 | 5.30 ppb |
| 2014-11-10 | 2039165004 | 4.40 ppb |
| 2014-11-10 | 2039165005 | 1.80 ppb |
| 2014-11-10 | 2039165006 | 1.80 ppb |
| 2014-11-10 | 2039165007 | 5.80 ppb |
| 2014-11-10 | 2039165008 | 2.90 ppb |
| 2014-12-01 | 2042447001 | 2.50 ppb |
| 2015-01-05 | 12368600 | 0.600 ppb |
| 2015-02-09 | 12481506 | 2.40 ppb |
| 2015-02-09 | 12481512 | 1.90 ppb |
| 2015-02-09 | 12481518 | 2.70 ppb |
| 2015-02-09 | 12481524 | 1.80 ppb |
| 2015-02-09 | 12481530 | 2.50 ppb |
| 2015-02-09 | 12481536 | 2.00 ppb |
| 2015-02-09 | 12481542 | 2.60 ppb |
| 2015-02-09 | 12481548 | 1.50 ppb |
| 2015-03-09 | 12597405 | 2.00 ppb |
| 2015-04-01 | 12597411 | 1.10 ppb |
| 2015-05-11 | 12844242 | 4.10 ppb |
| 2015-05-11 | 12844248 | 1.30 ppb |
| 2015-05-11 | 12844254 | 3.70 ppb |
| 2015-05-11 | 12844260 | 0.560 ppb |
| 2015-05-11 | 12844266 | 1.10 ppb |
| 2015-05-11 | 12844272 | 1.20 ppb |
| 2015-05-11 | 12844278 | 3.60 ppb |
| 2015-05-11 | 12844284 | 1.90 ppb |
| 2015-06-03 | 12844297 | 1.40 ppb |
| 2015-07-06 | 13101920 | 1.20 ppb |
| 2015-08-10 | 13228075 | 7.50 ppb |
| 2015-08-10 | 13228081 | 4.00 ppb |
| 2015-08-10 | 13228087 | 6.90 ppb |
| 2015-08-10 | 13228093 | 2.60 ppb |
| 2015-08-10 | 13228099 | 3.50 ppb |
| 2015-08-10 | 13228105 | 4.10 ppb |
| 2015-08-10 | 13228111 | 7.50 ppb |
| 2015-08-10 | 13228117 | 4.80 ppb |
| 2015-09-01 | 13228194 | 5.00 ppb |
| 2015-10-06 | 13477438 | 9.90 ppb |
| 2015-11-09 | 13598709 | 3.10 ppb |
| 2015-11-09 | 13598715 | 2.50 ppb |
| 2015-11-09 | 13598721 | 2.60 ppb |
| 2015-11-09 | 13598727 | 5.00 ppb |
| 2015-11-09 | 13598733 | 1.90 ppb |
| 2015-11-09 | 13598739 | 2.10 ppb |
| 2015-11-09 | 13598745 | 2.40 ppb |
| 2015-11-09 | 13598751 | 2.20 ppb |
| 2015-12-07 | 13718249 | 2.70 ppb |
| 2016-01-08 | 13836737 | 1.36 ppb |
| 2016-02-08 | 13951693 | ND |
| 2016-02-08 | 13951699 | ND |
| 2016-02-08 | 13951705 | ND |
| 2016-02-08 | 13951711 | ND |
| 2016-02-08 | 13951717 | ND |
| 2016-02-08 | 13951723 | ND |
| 2016-02-08 | 13951729 | 0.590 ppb |
| 2016-02-08 | 13951735 | ND |
| 2016-03-01 | 13951681 | ND |
| 2016-04-04 | 14067175 | 0.620 ppb |
| 2016-05-09 | 14362303 | 1.10 ppb |
| 2016-05-09 | 14362327 | 0.740 ppb |
| 2016-05-09 | 14362291 | 0.770 ppb |
| 2016-05-09 | 14362309 | 0.720 ppb |
| 2016-05-09 | 14362297 | 0.610 ppb |
| 2016-05-09 | 14362285 | ND |
| 2016-05-09 | 14362315 | 1.80 ppb |
| 2016-05-09 | 14362321 | 0.810 ppb |
| 2016-06-06 | 14362348 | 1.20 ppb |
| 2016-07-05 | 14690993 | 3.20 ppb |
| 2016-08-08 | 14860686 | 3.60 ppb |
| 2016-08-08 | 14860662 | 3.60 ppb |
| 2016-08-08 | 14860692 | 3.30 ppb |
| 2016-08-08 | 14860674 | 5.90 ppb |
| 2016-08-08 | 14860680 | 4.00 ppb |
| 2016-08-08 | 14860698 | 3.20 ppb |
| 2016-08-08 | 14860704 | 3.40 ppb |
| 2016-08-08 | 14860668 | 3.50 ppb |
| 2016-09-12 | 15033378 | 4.60 ppb |
| 2016-10-13 | 15186705 | 6.80 ppb |
| 2016-11-09 | 15329380 | 5.50 ppb |
| 2016-11-09 | 15329392 | 1.10 ppb |
| 2016-11-09 | 15329356 | 7.60 ppb |
| 2016-11-09 | 15329374 | 3.50 ppb |
| 2016-11-09 | 15329398 | 1.000 ppb |
| 2016-11-09 | 15329362 | 1.000 ppb |
| 2016-11-09 | 15329368 | 5.00 ppb |
| 2016-11-09 | 15329386 | 2.50 ppb |
| 2016-12-05 | 15474726 | 1.90 ppb |
| 2017-01-11 | 15617588 | 0.890 ppb |
| 2017-02-08 | 15754527 | 1.60 ppb |
| 2017-02-08 | 15754539 | 0.530 ppb |
| 2017-02-08 | 15754533 | 1.30 ppb |
| 2017-02-08 | 15754512 | ND |
| 2017-02-08 | 15754551 | ND |
| 2017-02-08 | 15754545 | ND |
| 2017-02-08 | 15754521 | 2.00 ppb |
| 2017-02-08 | 15754506 | ND |
| 2017-03-06 | 15895363 | ND |
| 2017-04-04 | 16049192 | ND |
| 2017-05-10 | 16211285 | 0.770 ppb |
| 2017-05-10 | 16211261 | ND |
| 2017-05-10 | 16211267 | 0.940 ppb |
| 2017-05-10 | 16211279 | ND |
| 2017-05-10 | 16211255 | ND |
| 2017-05-10 | 16211243 | ND |
| 2017-05-10 | 16211249 | 0.910 ppb |
| 2017-05-10 | 16211273 | ND |
| 2017-06-05 | 16372044 | 0.860 ppb |
| 2017-07-06 | 16522830 | 1.40 ppb |
| 2017-08-10 | 16683013 | 1.20 ppb |
| 2017-08-10 | 16682983 | 0.730 ppb |
| 2017-08-10 | 16683008 | 1.30 ppb |
| 2017-08-10 | 16682996 | 0.790 ppb |
| 2017-08-10 | 16683001 | 1.000 ppb |
| 2017-08-10 | 16682970 | 0.590 ppb |
| 2017-08-10 | 16682976 | 1.20 ppb |
| 2017-08-10 | 16682988 | 0.620 ppb |
| 2017-09-11 | 16837939 | 2.90 ppb |
| 2017-10-04 | 16838045 | 4.70 ppb |
| 2017-11-09 | 17123077 | 1.60 ppb |
| 2017-11-09 | 17123095 | 0.790 ppb |
| 2017-11-09 | 17123071 | 1.80 ppb |
| 2017-11-09 | 17123101 | 3.90 ppb |
| 2017-11-09 | 17123083 | 0.570 ppb |
| 2017-11-09 | 17123089 | ND |
| 2017-11-09 | 17123065 | 1.30 ppb |
| 2017-11-09 | 17123107 | ND |
| 2017-12-04 | 17123263 | 1.80 ppb |
| 2018-01-11 | 2288047001 | 2.30 ppb |
| 2018-02-12 | 2294628001 | 1.60 ppb |
| 2018-02-12 | 2294628002 | ND |
| 2018-02-12 | 2294628003 | 1.60 ppb |
| 2018-02-12 | 2294628004 | 0.730 ppb |
| 2018-02-12 | 2294628005 | 0.850 ppb |
| 2018-02-12 | 2294628006 | ND |
| 2018-02-12 | 2294628007 | 1.60 ppb |
| 2018-02-12 | 2294628008 | 0.890 ppb |
| 2018-03-05 | 2299298001 | ND |
| 2018-04-09 | 2307563001 | ND |
| 2018-05-08 | 2313457001 | 2.00 ppb |
| 2018-05-08 | 2313457002 | ND |
| 2018-05-08 | 2313457003 | 2.20 ppb |
| 2018-05-08 | 2313457004 | ND |
| 2018-05-08 | 2313457005 | ND |
| 2018-05-08 | 2313457006 | ND |
| 2018-05-08 | 2313457007 | 2.00 ppb |
| 2018-05-08 | 2313457008 | ND |
| 2018-06-07 | 2319163001 | ND |
| 2018-07-05 | 2324334001 | 2.40 ppb |
| 2018-08-13 | 2332060001 | 1.20 ppb |
| 2018-08-13 | 2332060002 | 1.000 ppb |
| 2018-08-13 | 2332060003 | 1.90 ppb |
| 2018-08-13 | 2332060004 | 1.10 ppb |
| 2018-08-13 | 2332060005 | ND |
| 2018-08-13 | 2332060006 | ND |
| 2018-08-13 | 2332060007 | 1.20 ppb |
| 2018-08-13 | 2332060008 | ND |
| 2018-09-13 | 2337916001 | 1.80 ppb |
| 2018-10-01 | 2341400001 | 1.10 ppb |
| 2018-11-12 | 3000055001 | ND |
| 2018-11-12 | 3000055002 | ND |
| 2018-11-12 | 3000055003 | ND |
| 2018-11-12 | 3000055004 | ND |
| 2018-11-12 | 3000055005 | ND |
| 2018-11-12 | 3000055006 | ND |
| 2018-11-12 | 3000055007 | ND |
| 2018-11-12 | 3000055008 | ND |
| 2018-12-06 | 3004070001 | ND |
| 2019-01-09 | H9A0602-01 | ND |
| 2019-02-11 | H9B0641-01 | 0.860 ppb |
| 2019-02-11 | H9B0641-02 | 0.580 ppb |
| 2019-02-11 | H9B0641-03 | 0.820 ppb |
| 2019-02-11 | H9B0641-04 | 0.630 ppb |
| 2019-02-11 | H9B0641-05 | 0.720 ppb |
| 2019-02-11 | H9B0641-06 | 0.550 ppb |
| 2019-02-11 | H9B0641-07 | 1.000 ppb |
| 2019-02-11 | H9B0641-08 | 0.580 ppb |
| 2019-03-11 | H9C0584-01 | 1.40 ppb |
| 2019-04-08 | H9D0658-01 | 1.37 ppb |
| 2019-05-08 | H9E0656-01 | 0.670 ppb |
| 2019-05-08 | H9E0656-02 | 0.620 ppb |
| 2019-05-08 | H9E0656-03 | 0.960 ppb |
| 2019-05-08 | H9E0656-04 | 0.860 ppb |
| 2019-05-08 | H9E0656-05 | 0.660 ppb |
| 2019-05-08 | H9E0656-06 | 0.670 ppb |
| 2019-05-08 | H9E0656-07 | 1.19 ppb |
| 2019-05-08 | H9E0656-08 | 0.650 ppb |
| 2019-06-03 | H9F0594-01 | 1.32 ppb |
| 2019-07-01 | H9G0670-01 | 1.31 ppb |
| 2019-08-08 | H9H0719-01 | 2.84 ppb |
| 2019-08-08 | H9H0719-02 | 2.86 ppb |
| 2019-08-08 | H9H0719-03 | 3.60 ppb |
| 2019-08-08 | H9H0719-04 | 3.09 ppb |
| 2019-08-08 | H9H0719-05 | 3.35 ppb |
| 2019-08-08 | H9H0719-06 | 2.94 ppb |
| 2019-08-08 | H9H0719-07 | 2.72 ppb |
| 2019-08-08 | H9H0719-08 | 2.70 ppb |
| 2019-09-03 | H9I0538-01 | 3.99 ppb |
| 2019-10-08 | H9J0614-01 | 7.95 ppb |
| 2019-11-11 | H9K0576-01 | 1.15 ppb |
| 2019-11-11 | H9K0576-02 | ND |
| 2019-11-11 | H9K0576-03 | 1.99 ppb |
| 2019-11-11 | H9K0576-04 | 2.68 ppb |
| 2019-11-11 | H9K0576-05 | ND |
| 2019-11-11 | H9K0576-06 | ND |
| 2019-11-11 | H9K0576-07 | 1.07 ppb |
| 2019-11-11 | H9K0576-08 | 0.580 ppb |
| 2019-12-11 | H9L0626-01 | 1.20 ppb |