Chloroform
NJ American Water - Western
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | 11.5 ppb | 49 | 49 | 0.550 ppb - 26.9 ppb |
2015 | 10.2 ppb | 48 | 48 | 1.70 ppb - 30.2 ppb |
2016 | 11.5 ppb | 48 | 48 | 0.800 ppb - 27.6 ppb |
2017 | 14.3 ppb | 48 | 48 | 1.30 ppb - 31.7 ppb |
2018 | 13.4 ppb | 48 | 48 | 1.90 ppb - 36.0 ppb |
2019 | 13.9 ppb | 48 | 48 | 0.900 ppb - 29.5 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 |
---|---|---|
2014-02-12 | 24570001 | 10.2 ppb |
2014-02-12 | 24569801 | 10.9 ppb |
2014-02-12 | 24567001 | 3.10 ppb |
2014-02-12 | 24572901 | 1.70 ppb |
2014-02-12 | 24569901 | 12.6 ppb |
2014-02-12 | 24565501 | 1.80 ppb |
2014-02-12 | 24569701 | 4.90 ppb |
2014-02-12 | 24572601 | 4.90 ppb |
2014-02-12 | 24566601 | 7.10 ppb |
2014-02-12 | 24572501 | 5.00 ppb |
2014-02-12 | 24566501 | 6.10 ppb |
2014-02-12 | 24566801 | 8.30 ppb |
2014-05-23 | 25518901 | 19.9 ppb |
2014-05-23 | 25518701 | 21.6 ppb |
2014-05-23 | 25516801 | 4.30 ppb |
2014-05-23 | 25521401 | 2.70 ppb |
2014-05-23 | 25518801 | 26.9 ppb |
2014-05-23 | 25515601 | 3.70 ppb |
2014-05-23 | 25518601 | 11.7 ppb |
2014-05-23 | 25521301 | 17.8 ppb |
2014-05-23 | 25516601 | 15.9 ppb |
2014-05-23 | 25521201 | 14.9 ppb |
2014-05-23 | 25516501 | 16.1 ppb |
2014-05-23 | 25516701 | 17.9 ppb |
2014-07-22 | 201407310131 | 0.550 ppb |
2014-08-08 | 26604901 | 23.4 ppb |
2014-08-08 | 26604701 | 17.9 ppb |
2014-08-08 | 26602801 | 2.90 ppb |
2014-08-08 | 26607401 | 15.1 ppb |
2014-08-08 | 26604801 | 18.7 ppb |
2014-08-08 | 26601601 | 8.70 ppb |
2014-08-08 | 26604601 | 9.20 ppb |
2014-08-08 | 26607301 | 15.9 ppb |
2014-08-08 | 26602601 | 14.4 ppb |
2014-08-08 | 26607201 | 10.9 ppb |
2014-08-08 | 26602501 | 15.8 ppb |
2014-08-08 | 26602701 | 16.9 ppb |
2014-11-10 | 27412801 | 17.8 ppb |
2014-11-10 | 27412601 | 17.2 ppb |
2014-11-10 | 27411001 | 3.50 ppb |
2014-11-10 | 27415201 | 2.70 ppb |
2014-11-10 | 27412701 | 16.8 ppb |
2014-11-10 | 27409801 | 3.00 ppb |
2014-11-10 | 27412501 | 13.0 ppb |
2014-11-10 | 27415101 | 16.6 ppb |
2014-11-10 | 27410801 | 13.4 ppb |
2014-11-10 | 27415001 | 8.10 ppb |
2014-11-10 | 27410701 | 14.6 ppb |
2014-11-10 | 27410901 | 16.1 ppb |
2015-02-12 | 28105301 | 6.70 ppb |
2015-02-12 | 28105101 | 5.80 ppb |
2015-02-12 | 28103201 | 2.00 ppb |
2015-02-12 | 28107801 | 2.60 ppb |
2015-02-12 | 28105201 | 11.5 ppb |
2015-02-12 | 28102001 | 2.10 ppb |
2015-02-12 | 28105001 | 5.20 ppb |
2015-02-12 | 28107701 | 9.90 ppb |
2015-02-12 | 28103001 | 5.30 ppb |
2015-02-12 | 28107601 | 4.10 ppb |
2015-02-12 | 28102901 | 5.80 ppb |
2015-02-12 | 28103101 | 5.70 ppb |
2015-05-12 | 29058201 | 10.5 ppb |
2015-05-12 | 29058001 | 11.1 ppb |
2015-05-12 | 29056001 | 1.80 ppb |
2015-05-12 | 29058501 | 8.20 ppb |
2015-05-12 | 29058101 | 20.2 ppb |
2015-05-12 | 29054801 | 2.80 ppb |
2015-05-12 | 29057901 | 9.70 ppb |
2015-05-12 | 29058401 | 17.9 ppb |
2015-05-12 | 29055801 | 8.00 ppb |
2015-05-12 | 29058301 | 8.30 ppb |
2015-05-12 | 29055701 | 6.20 ppb |
2015-05-12 | 29055901 | 7.80 ppb |
2015-08-11 | 30045301 | 19.7 ppb |
2015-08-11 | 30045101 | 19.2 ppb |
2015-08-11 | 30043001 | 3.00 ppb |
2015-08-11 | 30047801 | 5.20 ppb |
2015-08-11 | 30045201 | 20.3 ppb |
2015-08-11 | 30041801 | 1.70 ppb |
2015-08-11 | 30045001 | 8.60 ppb |
2015-08-11 | 30047701 | 10.6 ppb |
2015-08-11 | 30042801 | 11.1 ppb |
2015-08-11 | 30047601 | 11.6 ppb |
2015-08-11 | 30042701 | 10.5 ppb |
2015-08-11 | 30042901 | 7.90 ppb |
2015-11-10 | 30678601 | 16.9 ppb |
2015-11-10 | 30678301 | 22.0 ppb |
2015-11-10 | 30676401 | 4.70 ppb |
2015-11-10 | 30681001 | 6.40 ppb |
2015-11-10 | 30678401 | 30.2 ppb |
2015-11-10 | 30675201 | 8.10 ppb |
2015-11-10 | 30678201 | 9.40 ppb |
2015-11-10 | 30680801 | 17.2 ppb |
2015-11-10 | 30676201 | 17.6 ppb |
2015-11-10 | 30680601 | 9.50 ppb |
2015-11-10 | 30676101 | 20.2 ppb |
2015-11-10 | 30676301 | 17.2 ppb |
2016-02-11 | 31372601 | 10.3 ppb |
2016-02-11 | 31372401 | 16.7 ppb |
2016-02-11 | 31371601 | 2.60 ppb |
2016-02-11 | 31375101 | 3.30 ppb |
2016-02-11 | 31372501 | 20.8 ppb |
2016-02-11 | 31370401 | 2.80 ppb |
2016-02-11 | 31372301 | 12.3 ppb |
2016-02-11 | 31375001 | 16.7 ppb |
2016-02-11 | 31371401 | 9.30 ppb |
2016-02-11 | 31374901 | 6.30 ppb |
2016-02-11 | 31371301 | 21.1 ppb |
2016-02-11 | 31371501 | 9.30 ppb |
2016-05-11 | 32091901 | 14.2 ppb |
2016-05-11 | 32091701 | 17.0 ppb |
2016-05-11 | 32089601 | 4.40 ppb |
2016-05-11 | 32099901 | 3.60 ppb |
2016-05-11 | 32091801 | 17.2 ppb |
2016-05-11 | 32088401 | 4.60 ppb |
2016-05-11 | 32091601 | 16.3 ppb |
2016-05-11 | 32094301 | 10.6 ppb |
2016-05-11 | 32089401 | 12.1 ppb |
2016-05-11 | 32094201 | 10.4 ppb |
2016-05-11 | 32089301 | 11.4 ppb |
2016-05-11 | 32089501 | 14.3 ppb |
2016-08-10 | 33100701 | 27.6 ppb |
2016-08-10 | 33100501 | 22.1 ppb |
2016-08-10 | 33100001 | 4.40 ppb |
2016-08-10 | 33103201 | 16.5 ppb |
2016-08-10 | 33100601 | 23.6 ppb |
2016-08-10 | 33098301 | 17.5 ppb |
2016-08-10 | 33100401 | 11.0 ppb |
2016-08-10 | 33103101 | 13.8 ppb |
2016-08-10 | 33099801 | 17.8 ppb |
2016-08-10 | 33103001 | 11.5 ppb |
2016-08-10 | 33099701 | 19.5 ppb |
2016-08-10 | 33099901 | 20.9 ppb |
2016-11-10 | 33891001 | 7.20 ppb |
2016-11-10 | 33890401 | 0.800 ppb |
2016-11-10 | 33894201 | 6.80 ppb |
2016-11-10 | 33891201 | 10.3 ppb |
2016-11-10 | 33888201 | 8.50 ppb |
2016-11-10 | 33890801 | 12.6 ppb |
2016-11-10 | 33894001 | 6.70 ppb |
2016-11-10 | 33889901 | 3.50 ppb |
2016-11-10 | 33893801 | 3.60 ppb |
2016-11-10 | 33889701 | 6.90 ppb |
2016-11-10 | 33890101 | 4.60 ppb |
2016-11-14 | 33891401 | 7.40 ppb |
2017-02-10 | 34804201 | 5.60 ppb |
2017-02-10 | 34804001 | 7.70 ppb |
2017-02-10 | 34801901 | 1.30 ppb |
2017-02-10 | 34804501 | 4.50 ppb |
2017-02-10 | 34804101 | 12.3 ppb |
2017-02-10 | 34800301 | 4.40 ppb |
2017-02-10 | 34803901 | 23.0 ppb |
2017-02-10 | 34804401 | 6.00 ppb |
2017-02-10 | 34801701 | 5.10 ppb |
2017-02-10 | 34804301 | 3.70 ppb |
2017-02-10 | 34801601 | 8.50 ppb |
2017-02-10 | 34801801 | 5.60 ppb |
2017-05-10 | 35596301 | 12.8 ppb |
2017-05-10 | 35596101 | 16.1 ppb |
2017-05-10 | 35594301 | 15.9 ppb |
2017-05-10 | 35596601 | 8.70 ppb |
2017-05-10 | 35596201 | 11.7 ppb |
2017-05-10 | 35592101 | 9.80 ppb |
2017-05-10 | 35596001 | 21.8 ppb |
2017-05-10 | 35596501 | 14.5 ppb |
2017-05-10 | 35593601 | 12.0 ppb |
2017-05-10 | 35596401 | 17.4 ppb |
2017-05-10 | 35593501 | 12.0 ppb |
2017-05-10 | 35593701 | 12.9 ppb |
2017-08-10 | 36903101 | 20.0 ppb |
2017-08-10 | 36902901 | 18.6 ppb |
2017-08-10 | 36900801 | 2.10 ppb |
2017-08-10 | 36903401 | 14.2 ppb |
2017-08-10 | 36903001 | 14.3 ppb |
2017-08-10 | 36899101 | 15.2 ppb |
2017-08-10 | 36902801 | 17.5 ppb |
2017-08-10 | 36903301 | 12.1 ppb |
2017-08-10 | 36900601 | 13.5 ppb |
2017-08-10 | 36903201 | 12.8 ppb |
2017-08-10 | 36900501 | 14.3 ppb |
2017-08-10 | 36900701 | 20.5 ppb |
2017-11-09 | 37810301 | 30.6 ppb |
2017-11-09 | 37810101 | 26.9 ppb |
2017-11-09 | 37808201 | 8.70 ppb |
2017-11-09 | 37812801 | 11.5 ppb |
2017-11-09 | 37810201 | 31.7 ppb |
2017-11-09 | 37806601 | 7.60 ppb |
2017-11-09 | 37810001 | 29.8 ppb |
2017-11-09 | 37812701 | 21.8 ppb |
2017-11-09 | 37808001 | 23.9 ppb |
2017-11-09 | 37812601 | 4.90 ppb |
2017-11-09 | 37807901 | 30.1 ppb |
2017-11-09 | 37808101 | 29.0 ppb |
2018-02-09 | 38753001 | 5.60 ppb |
2018-02-09 | 38752801 | 8.10 ppb |
2018-02-09 | 38750901 | 2.40 ppb |
2018-02-09 | 38753301 | 3.60 ppb |
2018-02-09 | 38752901 | 17.9 ppb |
2018-02-09 | 38749301 | 4.60 ppb |
2018-02-09 | 38752701 | 14.8 ppb |
2018-02-09 | 38753201 | 13.6 ppb |
2018-02-09 | 38750701 | 6.20 ppb |
2018-02-09 | 38753101 | 4.00 ppb |
2018-02-09 | 38750601 | 6.20 ppb |
2018-02-09 | 38750801 | 6.50 ppb |
2018-05-10 | 39583201 | 9.90 ppb |
2018-05-10 | 39583001 | 13.2 ppb |
2018-05-10 | 39581301 | 1.90 ppb |
2018-05-10 | 39583601 | 9.60 ppb |
2018-05-10 | 39583101 | 19.8 ppb |
2018-05-10 | 39579601 | 5.50 ppb |
2018-05-10 | 39582901 | 12.0 ppb |
2018-05-10 | 39583401 | 16.3 ppb |
2018-05-10 | 39581101 | 9.10 ppb |
2018-05-10 | 39583301 | 8.70 ppb |
2018-05-10 | 39581001 | 7.00 ppb |
2018-05-10 | 39581201 | 9.40 ppb |
2018-08-10 | 40762601 | 32.9 ppb |
2018-08-10 | 40762401 | 33.1 ppb |
2018-08-10 | 40760301 | 6.50 ppb |
2018-08-10 | 40763101 | 25.1 ppb |
2018-08-10 | 40762501 | 36.0 ppb |
2018-08-10 | 40759101 | 12.0 ppb |
2018-08-10 | 40762301 | 30.1 ppb |
2018-08-10 | 40762801 | 34.2 ppb |
2018-08-10 | 40760101 | 25.0 ppb |
2018-08-10 | 40762701 | 25.2 ppb |
2018-08-10 | 40760001 | 26.2 ppb |
2018-08-10 | 40760201 | 33.6 ppb |
2018-11-09 | 42085401 | 9.70 ppb |
2018-11-09 | 42085201 | 12.6 ppb |
2018-11-09 | 42083301 | 2.70 ppb |
2018-11-09 | 42085701 | 5.60 ppb |
2018-11-09 | 42085301 | 17.3 ppb |
2018-11-09 | 42082101 | 6.10 ppb |
2018-11-09 | 42085101 | 7.90 ppb |
2018-11-09 | 42085601 | 15.2 ppb |
2018-11-09 | 42083101 | 8.80 ppb |
2018-11-09 | 42085501 | 4.10 ppb |
2018-11-09 | 42083001 | 7.90 ppb |
2018-11-09 | 42083201 | 10.6 ppb |
2019-02-11 | 43073401 | 4.50 ppb |
2019-02-11 | 43073301 | 5.00 ppb |
2019-02-11 | 43073201 | 0.900 ppb |
2019-02-11 | 43073101 | 4.00 ppb |
2019-02-11 | 43073001 | 6.60 ppb |
2019-02-11 | 43072901 | 2.40 ppb |
2019-02-11 | 43072801 | 4.50 ppb |
2019-02-11 | 43072701 | 9.20 ppb |
2019-02-11 | 43072601 | 2.60 ppb |
2019-02-11 | 43072501 | 2.70 ppb |
2019-02-11 | 43072401 | 2.60 ppb |
2019-02-11 | 43073501 | 3.10 ppb |
2019-05-10 | 44266501 | 17.0 ppb |
2019-05-10 | 44266401 | 22.1 ppb |
2019-05-10 | 44266301 | 4.10 ppb |
2019-05-10 | 44266201 | 6.50 ppb |
2019-05-10 | 44266101 | 19.7 ppb |
2019-05-10 | 44266001 | 7.70 ppb |
2019-05-10 | 44265901 | 17.3 ppb |
2019-05-10 | 44265801 | 21.8 ppb |
2019-05-10 | 44265701 | 13.5 ppb |
2019-05-10 | 44265601 | 15.5 ppb |
2019-05-10 | 44265501 | 16.5 ppb |
2019-05-10 | 44266601 | 15.8 ppb |
2019-08-08 | 45930101 | 18.4 ppb |
2019-08-08 | 45930001 | 23.5 ppb |
2019-08-08 | 45929901 | 3.30 ppb |
2019-08-08 | 45929801 | 11.5 ppb |
2019-08-08 | 45929701 | 20.3 ppb |
2019-08-08 | 45929601 | 10.9 ppb |
2019-08-08 | 45929501 | 17.9 ppb |
2019-08-08 | 45929401 | 16.7 ppb |
2019-08-08 | 45929301 | 17.9 ppb |
2019-08-08 | 45929201 | 23.8 ppb |
2019-08-08 | 45929101 | 16.0 ppb |
2019-08-08 | 45930201 | 20.6 ppb |
2019-11-08 | 47268301 | 23.4 ppb |
2019-11-08 | 47268201 | 29.5 ppb |
2019-11-08 | 47268101 | 7.60 ppb |
2019-11-08 | 47268001 | 11.2 ppb |
2019-11-08 | 47267901 | 27.5 ppb |
2019-11-08 | 47267801 | 22.2 ppb |
2019-11-08 | 47267701 | 21.0 ppb |
2019-11-08 | 47267601 | 21.8 ppb |
2019-11-08 | 47267501 | 22.0 ppb |
2019-11-08 | 47267401 | 6.40 ppb |
2019-11-08 | 47267301 | 24.3 ppb |
2019-11-08 | 47268401 | 22.7 ppb |