Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Mahwah Water Department

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

104

Samples

0

Samples exceeding legal limit (MCL)

59

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.563 ppb2013ND - 1.70 ppb
20150.772 ppb1613ND - 2.20 ppb
20160.498 ppb169ND - 1.60 ppb
20170.720 ppb2014ND - 2.20 ppb
20180.563 ppb169ND - 1.80 ppb
20190.306 ppb165ND - 1.30 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2014-03-143403141891.70 ppb
2014-03-143403141921.60 ppb
2014-03-143403141901.50 ppb
2014-03-143403141911.000 ppb
2014-06-06340606194ND
2014-06-06340606192ND
2014-06-06340606193ND
2014-06-06340606191ND
2014-06-1327180-10.560 ppb
2014-06-1327180-4ND
2014-06-1327180-20.540 ppb
2014-06-1327180-30.500 ppb
2014-09-1228842-1ND
2014-09-1228842-40.590 ppb
2014-09-1228842-20.550 ppb
2014-09-1228842-30.610 ppb
2014-12-1530354-10.570 ppb
2014-12-1530354-40.610 ppb
2014-12-1530354-20.930 ppb
2014-12-1530354-3ND
2015-03-1331687-11.89 ppb
2015-03-1331687-41.14 ppb
2015-03-1331687-22.20 ppb
2015-03-1331687-31.18 ppb
2015-06-11DWS822-11.02 ppb
2015-06-11DWS822-4ND
2015-06-11DWS822-20.510 ppb
2015-06-11DWS822-30.650 ppb
2015-09-14DWSC522-10.550 ppb
2015-09-14DWSC522-40.590 ppb
2015-09-14DWSC522-20.500 ppb
2015-09-14DWSC522-30.580 ppb
2015-12-14DWSC918-10.890 ppb
2015-12-14DWSC918-4ND
2015-12-14DWSC918-20.650 ppb
2015-12-14DWSC918-3ND
2016-03-14DWSC1249-11.01 ppb
2016-03-14DWSC1249-4ND
2016-03-14DWSC1249-20.850 ppb
2016-03-14DWSC1249-3ND
2016-06-143606151560.700 ppb
2016-06-143606151550.800 ppb
2016-06-143606151540.700 ppb
2016-06-143606151530.600 ppb
2016-09-14360914118ND
2016-09-14360914115ND
2016-09-14360914117ND
2016-09-14360914116ND
2016-12-143612141400.800 ppb
2016-12-143612141430.900 ppb
2016-12-143612141411.60 ppb
2016-12-14361214142ND
2017-03-133703160462.20 ppb
2017-03-133703160491.50 ppb
2017-03-133703160472.00 ppb
2017-03-133703160481.50 ppb
2017-05-17370517095ND
2017-05-17370517093ND
2017-05-17370517094ND
2017-05-17370517092ND
2017-06-143706141070.700 ppb
2017-06-143706141100.700 ppb
2017-06-143706141080.700 ppb
2017-06-143706141090.800 ppb
2017-09-133709131650.800 ppb
2017-09-133709131710.700 ppb
2017-09-133709131670.900 ppb
2017-09-133709131690.800 ppb
2017-12-13371213062ND
2017-12-133712130680.500 ppb
2017-12-13371213064ND
2017-12-133712130660.600 ppb
2018-03-143803141331.20 ppb
2018-03-143803141391.10 ppb
2018-03-143803141351.80 ppb
2018-03-143803141371.10 ppb
2018-06-123806130430.700 ppb
2018-06-123806130500.700 ppb
2018-06-123806130450.900 ppb
2018-06-123806130480.700 ppb
2018-09-12380912048ND
2018-09-123809120540.800 ppb
2018-09-12380912050ND
2018-09-12380912052ND
2018-12-12381212056ND
2018-12-12381212059ND
2018-12-12381212057ND
2018-12-12381212058ND
2019-03-13390313056.11.20 ppb
2019-03-13390313059.11.20 ppb
2019-03-13390313057.11.30 ppb
2019-03-13390313058.10.700 ppb
2019-06-12390612189ND
2019-06-12390612192ND
2019-06-12390612190ND
2019-06-12390612191ND
2019-09-11390911264ND
2019-09-11390911267ND
2019-09-11390911265ND
2019-09-11390911266ND
2019-12-11391211037.10.500 ppb
2019-12-11391211040.1ND
2019-12-11391211038.1ND
2019-12-11391211039.1ND