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EWG's Tap Water Database — 2019 UPDATE

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Bromodichloromethane

North Penn Water Authority

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.

 

266

Samples

0

Samples exceeding legal limit (MCL)

218

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20127.15 ppb44442.40 ppb - 12.5 ppb
20134.74 ppb4437ND - 9.77 ppb
20144.36 ppb4236ND - 9.90 ppb
20154.35 ppb4734ND - 12.0 ppb
20164.60 ppb4735ND - 12.5 ppb
20174.83 ppb4232ND - 11.7 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
2012-01-16120112664.70 ppb
2012-01-16120112665.40 ppb
2012-01-17120112665.00 ppb
2012-01-17120112663.30 ppb
2012-01-18120112664.60 ppb
2012-02-08120207096.20 ppb
2012-02-08120207095.10 ppb
2012-03-05120305566.50 ppb
2012-03-05120305565.80 ppb
2012-03-05120305565.40 ppb
2012-03-06120305567.50 ppb
2012-03-06120305564.50 ppb
2012-04-17120412242.40 ppb
2012-04-17120412245.20 ppb
2012-04-17120412244.30 ppb
2012-04-17120412243.80 ppb
2012-04-23120415175.00 ppb
2012-05-02120503026.00 ppb
2012-05-02120503024.80 ppb
2012-06-05201219638.56 ppb
2012-06-05201219644.77 ppb
2012-06-06201220018.48 ppb
2012-06-06201220026.37 ppb
2012-06-06201220008.13 ppb
2012-07-16201224538.20 ppb
2012-07-17201224829.92 ppb
2012-07-17201224848.77 ppb
2012-07-17201224818.43 ppb
2012-08-08201227978.26 ppb
2012-08-082012279612.5 ppb
2012-08-14201228565.70 ppb
2012-09-042012306511.2 ppb
2012-09-042012306610.7 ppb
2012-09-042012306410.6 ppb
2012-09-05201231109.82 ppb
2012-09-05201231115.75 ppb
2012-10-09201235209.85 ppb
2012-10-09201235219.28 ppb
2012-10-09201235277.15 ppb
2012-10-09201235258.23 ppb
2012-10-092012352410.3 ppb
2012-10-09201235268.52 ppb
2012-10-09201235229.71 ppb
2012-10-092012352310.00 ppb
2013-01-09201300956.92 ppb
2013-01-09201300966.41 ppb
2013-01-09201301024.22 ppb
2013-01-09201301004.64 ppb
2013-01-09201300997.13 ppb
2013-01-09201301014.07 ppb
2013-01-09201300975.80 ppb
2013-01-09201300984.10 ppb
2013-04-0913040953-013.80 ppb
2013-04-0913040953-023.20 ppb
2013-04-0913040953-084.80 ppb
2013-04-0913040953-065.40 ppb
2013-04-0913040953-055.90 ppb
2013-04-0913040953-073.80 ppb
2013-04-0913040953-035.50 ppb
2013-04-0913040953-045.50 ppb
2013-04-1813041686-015.10 ppb
2013-06-0520131984ND
2013-06-0520131979ND
2013-06-0520131980ND
2013-06-05201319820.548 ppb
2013-06-05201319831.72 ppb
2013-06-0520131981ND
2013-07-09201323948.56 ppb
2013-07-09201323956.98 ppb
2013-07-09201324017.26 ppb
2013-07-09201323997.79 ppb
2013-07-09201323989.77 ppb
2013-07-09201324006.73 ppb
2013-07-09201323968.17 ppb
2013-07-09201323976.59 ppb
2013-10-0913100961-018.90 ppb
2013-10-0913100961-027.80 ppb
2013-10-0913100961-086.40 ppb
2013-10-0913100961-067.10 ppb
2013-10-0913100961-052.60 ppb
2013-10-0913100961-077.40 ppb
2013-10-0913100961-037.90 ppb
2013-10-0913100961-048.00 ppb
2013-12-1120134387ND
2013-12-1120134388ND
2013-12-11201343900.691 ppb
2013-12-11201343911.45 ppb
2013-12-1120134389ND
2014-01-08201400976.11 ppb
2014-01-08201400984.02 ppb
2014-01-08201401044.00 ppb
2014-01-08201401024.29 ppb
2014-01-08201401012.41 ppb
2014-01-08201401033.88 ppb
2014-01-08201400995.71 ppb
2014-01-08201401003.13 ppb
2014-03-0520140816ND
2014-03-05201408171.53 ppb
2014-03-0520140818ND
2014-03-0520140819ND
2014-03-0520140820ND
2014-04-09201412195.77 ppb
2014-04-09201412206.23 ppb
2014-04-09201412264.54 ppb
2014-04-09201412244.13 ppb
2014-04-09201412231.77 ppb
2014-04-09201412254.12 ppb
2014-04-09201412215.63 ppb
2014-04-09201412226.03 ppb
2014-06-0420141932ND
2014-06-04201419332.18 ppb
2014-06-04201419350.766 ppb
2014-06-04201419361.85 ppb
2014-06-0420141934ND
2014-07-0914071329-069.90 ppb
2014-07-0914071329-017.90 ppb
2014-07-0914071329-047.50 ppb
2014-07-0914071329-038.70 ppb
2014-07-0914071329-072.70 ppb
2014-07-0914071329-087.30 ppb
2014-07-0914071329-058.80 ppb
2014-07-0914071329-029.00 ppb
2014-10-0814101000-068.00 ppb
2014-10-0814101000-016.20 ppb
2014-10-0814101000-045.60 ppb
2014-10-0814101000-035.60 ppb
2014-10-0814101000-073.10 ppb
2014-10-0814101000-083.30 ppb
2014-10-0814101000-057.70 ppb
2014-10-0814101000-023.60 ppb
2015-01-07122871186.47 ppb
2015-01-07122870983.97 ppb
2015-01-07122871084.02 ppb
2015-01-07122871034.34 ppb
2015-01-07122871233.17 ppb
2015-01-07122871282.68 ppb
2015-01-07122871135.69 ppb
2015-01-07122871333.95 ppb
2015-04-08126335585.90 ppb
2015-04-08126335385.20 ppb
2015-04-08126335483.80 ppb
2015-04-08126335434.40 ppb
2015-04-08126335632.10 ppb
2015-04-08126335682.80 ppb
2015-04-08126335535.80 ppb
2015-04-08126335735.50 ppb
2015-07-08130132149.10 ppb
2015-07-081301319410.00 ppb
2015-07-081301320410.3 ppb
2015-07-081301319911.5 ppb
2015-07-08130132193.70 ppb
2015-07-08130132246.50 ppb
2015-07-08130132099.10 ppb
2015-07-081301322912.0 ppb
2015-07-1313013084ND
2015-07-1313013110ND
2015-07-1313013136ND
2015-07-1313013162ND
2015-07-1313013188ND
2015-09-1413264727ND
2015-09-14132647530.699 ppb
2015-09-1413264779ND
2015-10-071338931210.1 ppb
2015-10-07133892928.50 ppb
2015-10-07133893026.91 ppb
2015-10-07133892978.59 ppb
2015-10-07133893173.15 ppb
2015-10-07133893224.10 ppb
2015-10-07133893078.58 ppb
2015-10-071338932711.3 ppb
2015-12-0213633363ND
2015-12-0213633389ND
2015-12-0213633415ND
2015-12-0213633441ND
2015-12-0213633467ND
2015-12-02136334930.753 ppb
2015-12-0913633519ND
2016-01-06137527498.04 ppb
2016-01-06137527297.44 ppb
2016-01-06137527394.60 ppb
2016-01-06137527345.44 ppb
2016-01-06137527544.13 ppb
2016-01-06137527593.25 ppb
2016-01-06137527445.73 ppb
2016-01-06137527645.07 ppb
2016-03-0213986068ND
2016-03-02139860942.66 ppb
2016-03-0213986120ND
2016-03-0213986146ND
2016-03-0213986172ND
2016-04-07141027806.11 ppb
2016-04-07141027563.23 ppb
2016-04-07141027684.31 ppb
2016-04-07141027624.22 ppb
2016-04-07141027862.03 ppb
2016-04-07141027922.83 ppb
2016-04-07141027745.44 ppb
2016-04-07141027984.06 ppb
2016-06-0614405905ND
2016-06-0614405932ND
2016-06-06144059860.536 ppb
2016-06-06144060132.89 ppb
2016-06-0614405959ND
2016-07-06145699078.53 ppb
2016-07-06145698838.85 ppb
2016-07-06145698957.58 ppb
2016-07-06145698898.80 ppb
2016-07-06145699132.48 ppb
2016-07-06145699195.21 ppb
2016-07-061456990111.0 ppb
2016-07-06145699259.91 ppb
2016-09-0714908094ND
2016-09-0714908121ND
2016-09-0714908148ND
2016-09-0714908175ND
2016-09-0714908202ND
2016-10-101507570111.5 ppb
2016-10-10150756779.20 ppb
2016-10-10150756899.50 ppb
2016-10-101507568310.8 ppb
2016-10-10150757072.50 ppb
2016-10-10150757135.40 ppb
2016-10-101507569510.2 ppb
2016-10-101507571912.5 ppb
2017-01-10155171587.11 ppb
2017-01-10155171346.24 ppb
2017-01-10155171464.38 ppb
2017-01-10155171404.62 ppb
2017-01-10155171643.58 ppb
2017-01-10155171702.88 ppb
2017-01-10155171525.50 ppb
2017-01-10155171765.73 ppb
2017-03-2215796099ND
2017-03-2215796126ND
2017-03-2215796153ND
2017-03-2215796180ND
2017-03-2215796207ND
2017-04-10159369025.90 ppb
2017-04-10159368825.60 ppb
2017-04-10159368924.50 ppb
2017-04-10159368874.60 ppb
2017-04-10159369072.40 ppb
2017-04-10159369123.40 ppb
2017-04-10159368977.20 ppb
2017-04-10159369175.70 ppb
2017-07-101641308810.1 ppb
2017-07-10164130688.70 ppb
2017-07-10164130788.20 ppb
2017-07-101641307310.3 ppb
2017-07-10164130932.80 ppb
2017-07-10164130986.00 ppb
2017-07-101641308310.8 ppb
2017-07-10164131036.80 ppb
2017-09-1116726764ND
2017-09-1116726791ND
2017-09-1116726818ND
2017-09-1116726845ND
2017-09-1116726872ND
2017-10-10168800509.78 ppb
2017-10-10168800268.07 ppb
2017-10-10168800386.73 ppb
2017-10-10168800327.96 ppb
2017-10-10168800563.00 ppb
2017-10-10168800624.94 ppb
2017-10-10168800447.46 ppb
2017-10-101688006811.7 ppb