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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

USA - Fort Stewart 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

 

112

Samples

0

Samples exceeding legal limit (MCL)

74

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.94 ppb1712ND - 4.00 ppb
20151.60 ppb2214ND - 4.70 ppb
20161.48 ppb1711ND - 4.60 ppb
20171.41 ppb1711ND - 3.80 ppb
20181.01 ppb2212ND - 3.00 ppb
20191.86 ppb1714ND - 3.20 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
2014-03-17AI36053ND
2014-03-17AI360542.60 ppb
2014-03-17AI360552.60 ppb
2014-03-17AI360562.00 ppb
2014-05-28AI415632.60 ppb
2014-06-16AI43302ND
2014-06-16AI433033.60 ppb
2014-06-16AI433042.60 ppb
2014-06-16AI43305ND
2014-09-15AI53769ND
2014-09-15AI537704.00 ppb
2014-09-15AI537713.50 ppb
2014-09-15AI537722.40 ppb
2014-12-15AI61500ND
2014-12-15AI615013.80 ppb
2014-12-15AI615021.20 ppb
2014-12-15AI615032.00 ppb
2015-03-17AI69230ND
2015-03-17AI692312.40 ppb
2015-03-17AI692322.10 ppb
2015-03-17AI69233ND
2015-03-18AI69319ND
2015-03-18AI693201.40 ppb
2015-03-18AI69321ND
2015-03-18AI693220.720 ppb
2015-03-18AI69323ND
2015-03-18AI693240.650 ppb
2015-06-15AI797551.20 ppb
2015-06-15AI797564.40 ppb
2015-06-15AI797573.70 ppb
2015-06-15AI797581.70 ppb
2015-09-16AI89972ND
2015-09-16AI899734.50 ppb
2015-09-16AI899744.70 ppb
2015-09-16AI89975ND
2015-12-15AJ02876ND
2015-12-15AJ028774.10 ppb
2015-12-15AJ028781.80 ppb
2015-12-15AJ028791.90 ppb
2016-03-17AJ08363ND
2016-03-17AJ083643.10 ppb
2016-03-17AJ083652.50 ppb
2016-03-17AJ083661.20 ppb
2016-03-24AJ08731ND
2016-06-20AJ14638ND
2016-06-20AJ146394.60 ppb
2016-06-20AJ146401.70 ppb
2016-06-20AJ146412.20 ppb
2016-09-21AJ28471ND
2016-09-21AJ28472ND
2016-09-21AJ284733.50 ppb
2016-09-21AJ284741.30 ppb
2016-12-22AJ373381.70 ppb
2016-12-22AJ373391.50 ppb
2016-12-22AJ373401.80 ppb
2016-12-22AJ37341ND
2017-03-22AJ48579ND
2017-03-22AJ485803.80 ppb
2017-03-22AJ485812.70 ppb
2017-03-22AJ485821.50 ppb
2017-05-31AJ56307ND
2017-06-22AJ583511.90 ppb
2017-06-22AJ58352ND
2017-06-22AJ583532.90 ppb
2017-06-22AJ58354ND
2017-09-21AJ69057ND
2017-09-21AJ690581.20 ppb
2017-09-21AJ690593.10 ppb
2017-09-21AJ69060ND
2017-12-20AJ757611.40 ppb
2017-12-20AJ757622.10 ppb
2017-12-20AJ757632.20 ppb
2017-12-20AJ757641.10 ppb
2018-03-22AJ863931.80 ppb
2018-03-22AJ863943.00 ppb
2018-03-22AJ863952.30 ppb
2018-03-22AJ86396ND
2018-05-10AJ893221.50 ppb
2018-05-10AJ89323ND
2018-05-10AJ893240.760 ppb
2018-05-10AJ89325ND
2018-05-10AJ893262.10 ppb
2018-05-31AJ90400ND
2018-06-20AJ921291.40 ppb
2018-06-20AJ921301.70 ppb
2018-06-20AJ921311.40 ppb
2018-06-20AJ921322.70 ppb
2018-09-24AK01979ND
2018-09-24AK01980ND
2018-09-24AK01981ND
2018-09-24AK01982ND
2018-12-13AK08212ND
2018-12-13AK08213ND
2018-12-13AK082142.00 ppb
2018-12-13AK082151.50 ppb
2019-03-21AK13733ND
2019-03-21AK137342.70 ppb
2019-03-21AK137352.30 ppb
2019-03-21AK137361.000 ppb
2019-05-20AK178392.70 ppb
2019-06-19AK204042.10 ppb
2019-06-19AK204052.10 ppb
2019-06-19AK204063.20 ppb
2019-06-19AK20407ND
2019-09-26AK330272.30 ppb
2019-09-26AK330283.20 ppb
2019-09-26AK330293.20 ppb
2019-09-26AK33030ND
2019-12-11AK381391.50 ppb
2019-12-11AK381401.70 ppb
2019-12-11AK381412.40 ppb
2019-12-11AK381421.30 ppb