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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

Willingboro MUA

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

 

122

Samples

0

Samples exceeding legal limit (MCL)

98

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.96 ppb1917ND - 9.42 ppb
20151.28 ppb21210.1000 ppb - 2.74 ppb
20161.42 ppb19190.1000 ppb - 4.30 ppb
20171.53 ppb1917ND - 4.50 ppb
20181.75 ppb2215ND - 9.30 ppb
20192.23 ppb2217ND - 8.40 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
2014-01-06L4860685-41.33 ppb
2014-01-06L4860685-33.30 ppb
2014-01-06L4860685-21.09 ppb
2014-01-06L4860685-14.17 ppb
2014-02-04L4860687-108.69 ppb
2014-03-04L4860709-19.42 ppb
2014-03-04L4860709-20.110 ppb
2014-04-08L4973871-41.80 ppb
2014-04-08L4973871-31.88 ppb
2014-04-08L4973871-21.26 ppb
2014-04-08L4973871-11.92 ppb
2014-07-01L5104552-13.54 ppb
2014-07-01L5104552-35.95 ppb
2014-07-01L5104552-21.60 ppb
2014-07-01L5104552-43.10 ppb
2014-10-06L5241208-4ND
2014-10-06L5241208-32.53 ppb
2014-10-06L5241208-2ND
2014-10-06L5241208-14.56 ppb
2015-01-05L5367910-10.470 ppb
2015-01-05L5367910-30.720 ppb
2015-01-05L5367910-20.280 ppb
2015-01-05L5367910-40.890 ppb
2015-03-04L5367913-10.640 ppb
2015-03-04L5367913-20.1000 ppb
2015-04-06L5490276-10.410 ppb
2015-04-06L5490276-31.87 ppb
2015-04-06L5490276-21.05 ppb
2015-04-06L5490276-41.97 ppb
2015-04-06L5490273-10.620 ppb
2015-07-06L5639888-12.15 ppb
2015-07-06L5639888-32.74 ppb
2015-07-06L5639888-22.42 ppb
2015-07-06L5639888-42.24 ppb
2015-07-06L5697933-10.560 ppb
2015-10-05L5367928-10.910 ppb
2015-10-22L4533664-11.96 ppb
2015-10-22L4533664-31.50 ppb
2015-10-22L4533664-21.36 ppb
2015-10-22L4533664-41.95 ppb
2016-01-12L5969180-10.400 ppb
2016-01-12L5969180-30.800 ppb
2016-01-12L5969180-20.400 ppb
2016-01-12L5969180-40.800 ppb
2016-01-20L4354069-10.710 ppb
2016-03-22L5969178-20.1000 ppb
2016-04-11L6131198-10.500 ppb
2016-04-11L6131198-31.000 ppb
2016-04-11L6131198-20.300 ppb
2016-04-11L6131198-43.90 ppb
2016-04-11L6179330-10.700 ppb
2016-07-12L6317404-12.70 ppb
2016-07-12L6317404-32.10 ppb
2016-07-12L6317404-21.20 ppb
2016-07-12L6317404-43.70 ppb
2016-10-11L6468833-40.700 ppb
2016-10-11L6468833-32.20 ppb
2016-10-11L6468833-20.400 ppb
2016-10-11L6468833-14.30 ppb
2017-01-10L6599762-13.70 ppb
2017-01-10L6599762-30.800 ppb
2017-01-10L6599762-21.10 ppb
2017-01-10L6599762-40.700 ppb
2017-04-11L6722725-10.800 ppb
2017-04-11L6722725-31.50 ppb
2017-04-11L6722725-20.800 ppb
2017-04-11L6722725-42.50 ppb
2017-07-173707190321.20 ppb
2017-07-173707190301.20 ppb
2017-07-17370719036ND
2017-07-173707190341.90 ppb
2017-08-083708090521.000 ppb
2017-10-103710110392.60 ppb
2017-10-103710110372.20 ppb
2017-10-103710110431.50 ppb
2017-10-103710110414.50 ppb
2017-11-02371102132ND
2017-11-143711151251.10 ppb
2018-01-093801100210.600 ppb
2018-01-093801100191.10 ppb
2018-01-09380110025ND
2018-01-093801100239.30 ppb
2018-01-22380124097ND
2018-01-22380124098ND
2018-01-233801240961.40 ppb
2018-04-093804111341.10 ppb
2018-04-093804111334.40 ppb
2018-04-093804111321.60 ppb
2018-04-093804111314.00 ppb
2018-04-09380411136ND
2018-07-093807117164.00 ppb
2018-07-093807117142.40 ppb
2018-07-093807117120.600 ppb
2018-07-093807117102.40 ppb
2018-07-09380711708ND
2018-10-093810107201.10 ppb
2018-10-093810107190.700 ppb
2018-10-09381010718ND
2018-10-093810107173.80 ppb
2018-10-10381010715ND
2019-01-08390109750.10.900 ppb
2019-01-08390109749.14.90 ppb
2019-01-08390109748.11.90 ppb
2019-01-08390109747.14.10 ppb
2019-02-133902147380.600 ppb
2019-02-13390214739ND
2019-02-26390227720ND
2019-04-10390410733.10.900 ppb
2019-04-10390410732.12.60 ppb
2019-04-10390410735.11.80 ppb
2019-04-10390410734.13.20 ppb
2019-05-15390515731ND
2019-07-1030446460072.50 ppb
2019-07-1030446460051.70 ppb
2019-07-1030446460031.90 ppb
2019-07-1030446460013.50 ppb
2019-08-14390814730ND
2019-10-093910097233.30 ppb
2019-10-093910097218.40 ppb
2019-10-093910097191.70 ppb
2019-10-093910097175.20 ppb
2019-11-06391106827ND