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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

Fair Lawn Water Department

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.

In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.

Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

150

Samples

0

Samples exceeding legal limit (MCL)

127

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20147.43 ppb3227ND - 28.9 ppb
201511.2 ppb2822ND - 35.0 ppb
201612.7 ppb2622ND - 35.0 ppb
201712.3 ppb2625ND - 36.2 ppb
201821.2 ppb19190.298 ppb - 51.5 ppb
201915.5 ppb1917ND - 35.1 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform 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
2014-01-2825229-3ND
2014-01-2825229-60.940 ppb
2014-01-2825229-80.580 ppb
2014-01-2825229-71.24 ppb
2014-02-2725646-7ND
2014-02-2725646-63.45 ppb
2014-02-2725646-58.45 ppb
2014-02-2725646-44.22 ppb
2014-04-2226373-3ND
2014-04-2226373-66.90 ppb
2014-04-2226373-80.560 ppb
2014-04-2226373-71.57 ppb
2014-05-2726889-618.8 ppb
2014-05-2726889-513.2 ppb
2014-05-2726889-428.9 ppb
2014-05-2726889-317.6 ppb
2014-07-2227949-3ND
2014-07-2227949-615.4 ppb
2014-07-2227949-80.640 ppb
2014-07-2227949-72.64 ppb
2014-08-2628557-618.7 ppb
2014-08-2628557-513.3 ppb
2014-08-2628557-421.7 ppb
2014-08-2628557-322.1 ppb
2014-10-2729621-3ND
2014-10-2729621-60.700 ppb
2014-10-2729621-80.590 ppb
2014-10-2729621-71.71 ppb
2014-11-2530047-52.60 ppb
2014-11-2530047-44.71 ppb
2014-11-2530047-319.6 ppb
2014-11-2530047-26.94 ppb
2015-01-2030858-3ND
2015-01-2030858-62.13 ppb
2015-01-2030858-80.530 ppb
2015-02-2431497-4ND
2015-02-2431497-33.80 ppb
2015-02-2431497-24.76 ppb
2015-02-2431497-15.54 ppb
2015-04-28DWS327-3ND
2015-04-28DWS327-612.6 ppb
2015-04-28DWS327-80.570 ppb
2015-05-27DWS650-432.2 ppb
2015-05-27DWS650-319.6 ppb
2015-05-27DWS650-235.0 ppb
2015-05-27DWS650-116.8 ppb
2015-07-28DWSC97-3ND
2015-07-28DWSC97-61.12 ppb
2015-07-28DWSC97-8ND
2015-08-25DWSC282-425.6 ppb
2015-08-25DWSC282-325.2 ppb
2015-08-25DWSC282-233.2 ppb
2015-08-25DWSC282-122.2 ppb
2015-10-27DWSC678-3ND
2015-10-27DWSC678-620.1 ppb
2015-10-27DWSC678-80.600 ppb
2015-11-24DWSC829-40.620 ppb
2015-11-24DWSC829-312.8 ppb
2015-11-24DWSC829-225.0 ppb
2015-11-24DWSC829-113.6 ppb
2016-01-26DWSC1060-2ND
2016-01-26DWSC1060-47.32 ppb
2016-01-26DWSC1060-60.590 ppb
2016-02-23DWSC1163-48.59 ppb
2016-02-23DWSC1163-315.3 ppb
2016-02-23DWSC1163-211.9 ppb
2016-02-23DWSC1163-18.61 ppb
2016-04-26DWSC1469-3ND
2016-04-26DWSC1469-61.46 ppb
2016-04-26DWSC1469-8ND
2016-05-24DWSC1560-417.0 ppb
2016-05-24DWSC1560-324.1 ppb
2016-05-24DWSC1560-219.7 ppb
2016-05-24DWSC1560-121.1 ppb
2016-07-26DWSC1873-3ND
2016-07-26DWSC1873-50.700 ppb
2016-08-23DWSC2004-435.0 ppb
2016-08-23DWSC2004-333.8 ppb
2016-08-23DWSC2004-233.9 ppb
2016-08-23DWSC2004-131.8 ppb
2016-10-25DWSC2297-30.730 ppb
2016-10-25DWSC2297-50.650 ppb
2016-11-22DWSC2425-416.1 ppb
2016-11-22DWSC2425-318.4 ppb
2016-11-22DWSC2425-216.3 ppb
2016-11-22DWSC2425-16.24 ppb
2017-01-24DWSC2640-3ND
2017-01-24DWSC2640-50.620 ppb
2017-02-287020785-0416.7 ppb
2017-02-287020785-039.40 ppb
2017-02-287020785-0218.0 ppb
2017-02-287020785-0110.2 ppb
2017-04-257040748-030.328 ppb
2017-04-257040748-050.656 ppb
2017-04-257040748-043.62 ppb
2017-05-237050835-046.58 ppb
2017-05-237050835-035.33 ppb
2017-05-237050835-0225.5 ppb
2017-05-237050835-0126.8 ppb
2017-07-257070732-030.333 ppb
2017-07-257070732-050.467 ppb
2017-07-257070732-041.27 ppb
2017-08-297081048-0430.1 ppb
2017-08-297081048-0327.0 ppb
2017-08-297081048-0236.2 ppb
2017-08-297081048-0126.5 ppb
2017-10-247100738-030.383 ppb
2017-10-247100738-050.648 ppb
2017-11-287110920-0417.8 ppb
2017-11-287110920-0318.0 ppb
2017-11-287110920-0224.4 ppb
2017-11-287110920-0112.8 ppb
2018-01-238010589-010.298 ppb
2018-02-278020854-0415.7 ppb
2018-02-278020854-039.99 ppb
2018-02-278020854-0212.2 ppb
2018-02-278020854-017.76 ppb
2018-04-248040884-010.366 ppb
2018-05-298051184-040.719 ppb
2018-05-298051184-0325.6 ppb
2018-05-298051184-0243.6 ppb
2018-05-298051184-0128.7 ppb
2018-08-288081185-0444.4 ppb
2018-08-288081185-0351.5 ppb
2018-08-288081185-0236.7 ppb
2018-08-288081185-0142.2 ppb
2018-10-308101260-010.942 ppb
2018-11-278110986-0426.8 ppb
2018-11-278110986-0318.5 ppb
2018-11-278110986-0226.1 ppb
2018-11-278110986-019.81 ppb
2019-02-2619022701-0411.6 ppb
2019-02-2619022701-0311.7 ppb
2019-02-2619022701-0210.8 ppb
2019-02-2619022701-0110.2 ppb
2019-04-2319042401-01ND
2019-05-28303688600431.0 ppb
2019-05-28303688600318.5 ppb
2019-05-28303688600235.1 ppb
2019-05-28303688600126.7 ppb
2019-07-3019080103-001ND
2019-08-2719082801-00420.0 ppb
2019-08-2719082801-00322.5 ppb
2019-08-2719082801-00221.5 ppb
2019-08-2719082801-00131.0 ppb
2019-11-0519110626-00112.8 ppb
2019-11-2619112632-0043.22 ppb
2019-11-2619112632-0031.70 ppb
2019-11-2619112632-00215.6 ppb
2019-11-2619112632-00110.7 ppb