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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Falmouth 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

 

370

Samples

0

Samples exceeding legal limit (MCL)

174

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
20150.313 ppb4010ND - 1.65 ppb
20160.181 ppb9822ND - 1.43 ppb
20170.416 ppb7632ND - 1.37 ppb
20180.709 ppb8048ND - 2.22 ppb
20191.07 ppb7664ND - 1.96 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 Result
2015-07-07ND
2015-07-07ND
2015-07-07ND
2015-07-07ND
2015-08-20ND
2015-08-20ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-09-030.720 ppb
2015-09-030.720 ppb
2015-10-15ND
2015-10-15ND
2015-12-03ND
2015-12-03ND
2015-12-031.16 ppb
2015-12-031.16 ppb
2015-12-03ND
2015-12-03ND
2015-12-031.65 ppb
2015-12-031.65 ppb
2015-12-031.64 ppb
2015-12-031.64 ppb
2015-12-03ND
2015-12-03ND
2015-12-03ND
2015-12-03ND
2015-12-031.09 ppb
2015-12-031.09 ppb
2016-01-11ND
2016-01-11ND
2016-01-11ND
2016-01-11ND
2016-01-12ND
2016-01-12ND
2016-01-26ND
2016-01-26ND
2016-01-27ND
2016-01-27ND
2016-01-27ND
2016-01-27ND
2016-01-28ND
2016-01-28ND
2016-02-04ND
2016-02-04ND
2016-02-05ND
2016-02-05ND
2016-02-08ND
2016-02-08ND
2016-02-09ND
2016-02-09ND
2016-02-10ND
2016-02-10ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-020.630 ppb
2016-03-020.630 ppb
2016-03-020.610 ppb
2016-03-020.610 ppb
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-02ND
2016-03-020.890 ppb
2016-03-020.890 ppb
2016-04-11ND
2016-04-11ND
2016-04-11ND
2016-04-11ND
2016-05-20ND
2016-05-20ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-020.570 ppb
2016-06-020.570 ppb
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-02ND
2016-06-020.840 ppb
2016-06-020.840 ppb
2016-07-18ND
2016-07-18ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-01ND
2016-09-010.690 ppb
2016-09-010.690 ppb
2016-10-04ND
2016-10-04ND
2016-12-050.620 ppb
2016-12-050.620 ppb
2016-12-051.17 ppb
2016-12-051.17 ppb
2016-12-05ND
2016-12-05ND
2016-12-050.650 ppb
2016-12-050.650 ppb
2016-12-051.43 ppb
2016-12-051.43 ppb
2016-12-05ND
2016-12-05ND
2016-12-050.750 ppb
2016-12-050.750 ppb
2016-12-05ND
2016-12-05ND
2017-01-04ND
2017-01-04ND
2017-01-04ND
2017-01-04ND
2017-03-060.670 ppb
2017-03-060.670 ppb
2017-03-061.04 ppb
2017-03-061.04 ppb
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-06ND
2017-03-061.24 ppb
2017-03-061.24 ppb
2017-03-06ND
2017-03-06ND
2017-03-060.690 ppb
2017-03-060.690 ppb
2017-03-061.03 ppb
2017-03-061.03 ppb
2017-04-06ND
2017-04-06ND
2017-04-06ND
2017-04-06ND
2017-05-120.500 ppb
2017-05-120.500 ppb
2017-06-051.37 ppb
2017-06-051.37 ppb
2017-06-051.17 ppb
2017-06-051.17 ppb
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-050.570 ppb
2017-06-050.570 ppb
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-05ND
2017-06-051.37 ppb
2017-06-051.37 ppb
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-050.950 ppb
2017-09-050.950 ppb
2017-10-24ND
2017-10-24ND
2017-12-040.540 ppb
2017-12-040.540 ppb
2017-12-04ND
2017-12-04ND
2017-12-041.19 ppb
2017-12-041.19 ppb
2017-12-041.33 ppb
2017-12-041.33 ppb
2017-12-041.14 ppb
2017-12-041.14 ppb
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-041.02 ppb
2017-12-041.02 ppb
2018-01-08ND
2018-01-08ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-051.75 ppb
2018-03-051.75 ppb
2018-03-051.55 ppb
2018-03-051.55 ppb
2018-03-050.830 ppb
2018-03-050.830 ppb
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-051.15 ppb
2018-03-051.15 ppb
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-04-17ND
2018-04-17ND
2018-06-040.560 ppb
2018-06-040.560 ppb
2018-06-040.600 ppb
2018-06-040.600 ppb
2018-06-041.48 ppb
2018-06-041.48 ppb
2018-06-040.700 ppb
2018-06-040.700 ppb
2018-06-040.640 ppb
2018-06-040.640 ppb
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-040.800 ppb
2018-06-040.800 ppb
2018-07-17ND
2018-07-17ND
2018-07-17ND
2018-07-17ND
2018-09-051.04 ppb
2018-09-051.04 ppb
2018-09-051.48 ppb
2018-09-051.48 ppb
2018-09-051.23 ppb
2018-09-051.23 ppb
2018-09-051.04 ppb
2018-09-051.04 ppb
2018-09-050.620 ppb
2018-09-050.620 ppb
2018-09-050.860 ppb
2018-09-050.860 ppb
2018-09-050.860 ppb
2018-09-050.860 ppb
2018-09-061.74 ppb
2018-09-061.74 ppb
2018-10-02ND
2018-10-02ND
2018-10-09ND
2018-10-09ND
2018-12-07ND
2018-12-07ND
2018-12-071.07 ppb
2018-12-071.07 ppb
2018-12-072.22 ppb
2018-12-072.22 ppb
2018-12-072.10 ppb
2018-12-072.10 ppb
2018-12-071.51 ppb
2018-12-071.51 ppb
2018-12-07ND
2018-12-07ND
2018-12-070.780 ppb
2018-12-070.780 ppb
2018-12-071.75 ppb
2018-12-071.75 ppb
2019-01-08ND
2019-01-08ND
2019-03-180.700 ppb
2019-03-180.700 ppb
2019-03-180.720 ppb
2019-03-180.720 ppb
2019-03-181.95 ppb
2019-03-181.95 ppb
2019-03-181.84 ppb
2019-03-181.84 ppb
2019-03-181.62 ppb
2019-03-181.62 ppb
2019-03-18ND
2019-03-18ND
2019-03-180.700 ppb
2019-03-180.700 ppb
2019-03-181.73 ppb
2019-03-181.73 ppb
2019-05-15ND
2019-05-15ND
2019-05-150.570 ppb
2019-05-150.570 ppb
2019-06-121.000 ppb
2019-06-121.000 ppb
2019-06-121.35 ppb
2019-06-121.35 ppb
2019-06-121.81 ppb
2019-06-121.81 ppb
2019-06-121.69 ppb
2019-06-121.69 ppb
2019-06-121.40 ppb
2019-06-121.40 ppb
2019-06-120.750 ppb
2019-06-120.750 ppb
2019-06-121.06 ppb
2019-06-121.06 ppb
2019-06-120.910 ppb
2019-06-120.910 ppb
2019-07-09ND
2019-07-09ND
2019-07-090.920 ppb
2019-07-090.920 ppb
2019-09-121.96 ppb
2019-09-121.96 ppb
2019-09-121.52 ppb
2019-09-121.52 ppb
2019-09-121.68 ppb
2019-09-121.68 ppb
2019-09-121.86 ppb
2019-09-121.86 ppb
2019-09-121.49 ppb
2019-09-121.49 ppb
2019-09-120.910 ppb
2019-09-120.910 ppb
2019-09-121.34 ppb
2019-09-121.34 ppb
2019-09-121.13 ppb
2019-09-121.13 ppb
2019-10-010.640 ppb
2019-10-010.640 ppb
2019-12-090.630 ppb
2019-12-090.630 ppb
2019-12-090.660 ppb
2019-12-090.660 ppb
2019-12-091.81 ppb
2019-12-091.81 ppb
2019-12-091.54 ppb
2019-12-091.54 ppb
2019-12-091.59 ppb
2019-12-091.59 ppb
2019-12-09ND
2019-12-09ND
2019-12-09ND
2019-12-09ND
2019-12-091.30 ppb
2019-12-091.30 ppb