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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

Pemberton Twp Department Main

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

 

120

Samples

0

Samples exceeding legal limit (MCL)

42

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.428 ppb2816ND - 1.36 ppb
20150.263 ppb2420ND - 2.29 ppb
20160.363 ppb2016ND - 1.000 ppb
20170.175 ppb1610ND - 0.800 ppb
20180.494 ppb16160.1000 ppb - 1.60 ppb
20191.09 ppb16160.1000 ppb - 2.80 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
2014-01-14L2281814-30.1000 ppb
2014-01-14L2281814-40.310 ppb
2014-01-14L3721361-2ND
2014-01-14L2281814-50.740 ppb
2014-01-14L2281814-2ND
2014-01-14L2281814-10.0600 ppb
2014-03-04L4899060-4ND
2014-03-04L4899060-21.36 ppb
2014-03-04L4899060-11.11 ppb
2014-03-04L4899060-31.02 ppb
2014-04-01L3595189-20.190 ppb
2014-04-01L3595189-11.33 ppb
2014-06-03L5017832-4ND
2014-06-03L5017832-3ND
2014-06-03L5017832-2ND
2014-06-03L5017832-11.20 ppb
2014-08-05L5017833-2ND
2014-08-05L5017833-10.920 ppb
2014-09-02L5205113-4ND
2014-09-02L5205113-3ND
2014-09-02L5205113-2ND
2014-09-02L5205113-1ND
2014-10-07L5278408-2ND
2014-10-21L5291980-10.110 ppb
2014-12-02L5286681-40.660 ppb
2014-12-02L5286681-30.740 ppb
2014-12-02L5286681-21.09 ppb
2014-12-02L5286681-11.04 ppb
2015-01-13L5405828-20.150 ppb
2015-01-13L5405828-10.530 ppb
2015-03-03L5408301-40.190 ppb
2015-03-03L5408301-30.160 ppb
2015-03-03L5408301-20.160 ppb
2015-03-03L5408301-10.190 ppb
2015-04-07L5017834-2ND
2015-04-07L5017834-12.29 ppb
2015-06-02L5540190-40.450 ppb
2015-06-02L5540190-30.250 ppb
2015-06-02L5540190-20.310 ppb
2015-06-02L5540190-10.380 ppb
2015-07-07L5160331-2ND
2015-07-07L5160331-10.350 ppb
2015-09-01L5762237-40.130 ppb
2015-09-01L5762237-30.170 ppb
2015-09-01L5762237-20.130 ppb
2015-09-01L5762237-10.110 ppb
2015-10-13L5860586-2ND
2015-10-13L5860586-1ND
2015-12-01L5863625-40.0900 ppb
2015-12-01L5863625-30.1000 ppb
2015-12-01L5863625-20.0800 ppb
2015-12-01L5863625-10.0800 ppb
2016-01-19L5654506-20.200 ppb
2016-01-19L5654506-10.960 ppb
2016-03-01L6016708-40.300 ppb
2016-03-01L6016708-20.300 ppb
2016-03-01L6016708-10.300 ppb
2016-03-08L6114777-10.200 ppb
2016-04-05L6167175-2ND
2016-04-05L6167175-1ND
2016-06-07L6178732-40.600 ppb
2016-06-07L6178732-30.600 ppb
2016-06-07L6178732-21.000 ppb
2016-06-07L6178732-1ND
2016-09-06L6427132-40.400 ppb
2016-09-06L6427132-3ND
2016-09-06L6427132-20.800 ppb
2016-09-06L6427132-10.800 ppb
2016-12-06L6509419-40.200 ppb
2016-12-06L6509419-30.200 ppb
2016-12-06L6509419-20.200 ppb
2016-12-06L6509419-10.200 ppb
2017-03-07L6641136-4ND
2017-03-07L6641136-3ND
2017-03-07L6641136-20.200 ppb
2017-03-07L6641136-10.200 ppb
2017-06-06L6761971-4ND
2017-06-06L6761971-3ND
2017-06-06L6761971-2ND
2017-06-06L6761971-1ND
2017-09-06L6939186-40.1000 ppb
2017-09-06L6939186-30.1000 ppb
2017-09-06L6939186-20.1000 ppb
2017-09-06L6939186-10.1000 ppb
2017-12-05L6963154-40.300 ppb
2017-12-05L6963154-30.300 ppb
2017-12-05L6963154-20.600 ppb
2017-12-05L6963154-10.800 ppb
2018-03-06L6994097-40.300 ppb
2018-03-06L6994097-30.200 ppb
2018-03-06L6994097-20.500 ppb
2018-03-06L6994097-10.500 ppb
2018-06-05L7016187-40.200 ppb
2018-06-05L7016187-30.1000 ppb
2018-06-05L7016187-20.700 ppb
2018-06-05L7016187-10.700 ppb
2018-09-04L7063470-40.400 ppb
2018-09-04L7063470-30.200 ppb
2018-09-04L7063470-20.200 ppb
2018-09-04L7063470-10.400 ppb
2018-12-04L7079909-41.20 ppb
2018-12-04L7079909-31.60 ppb
2018-12-04L7079909-20.400 ppb
2018-12-04L7079909-10.300 ppb
2019-03-05L7099638-40.900 ppb
2019-03-05L7099638-30.300 ppb
2019-03-05L7099638-21.80 ppb
2019-03-05L7099638-11.80 ppb
2019-06-04L7118635-40.600 ppb
2019-06-04L7118635-30.1000 ppb
2019-06-04L7118635-20.500 ppb
2019-06-04L7118635-11.10 ppb
2019-09-03L7154331-40.700 ppb
2019-09-03L7154331-30.700 ppb
2019-09-03L7154331-21.20 ppb
2019-09-03L7154331-11.50 ppb
2019-12-03L7168718-42.80 ppb
2019-12-03L7168718-32.10 ppb
2019-12-03L7168718-20.600 ppb
2019-12-03L7168718-10.800 ppb