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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

Savannah - 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

 

232

Samples

0

Samples exceeding legal limit (MCL)

138

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.16 ppb5432ND - 6.50 ppb
20151.16 ppb2815ND - 7.00 ppb
20161.64 ppb3221ND - 5.50 ppb
20171.15 ppb5428ND - 5.00 ppb
20181.44 ppb3220ND - 7.50 ppb
20191.86 ppb3222ND - 7.80 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
2014-02-03AI273101.50 ppb
2014-02-03AI27311ND
2014-02-03AI273121.10 ppb
2014-02-03AI273131.20 ppb
2014-02-04AI275291.60 ppb
2014-02-04AI275301.90 ppb
2014-02-04AI275311.60 ppb
2014-02-04AI275322.10 ppb
2014-05-06AI398041.80 ppb
2014-05-06AI39805ND
2014-05-06AI39806ND
2014-05-06AI398071.60 ppb
2014-05-06AI398083.60 ppb
2014-05-06AI39809ND
2014-05-06AI39810ND
2014-05-06AI398112.40 ppb
2014-07-08AI451180.730 ppb
2014-07-08AI45119ND
2014-07-08AI451200.950 ppb
2014-07-08AI45121ND
2014-07-08AI451221.000 ppb
2014-07-08AI45123ND
2014-07-08AI45124ND
2014-07-08AI45125ND
2014-07-08AI45126ND
2014-07-08AI451271.70 ppb
2014-07-08AI45128ND
2014-07-08AI451291.30 ppb
2014-07-08AI45130ND
2014-07-08AI45131ND
2014-07-08AI45132ND
2014-07-08AI451330.880 ppb
2014-07-08AI451340.910 ppb
2014-07-08AI45135ND
2014-07-08AI45136ND
2014-07-08AI451370.840 ppb
2014-07-08AI451382.40 ppb
2014-07-08AI45139ND
2014-08-06AI485771.60 ppb
2014-08-06AI48578ND
2014-08-06AI485791.20 ppb
2014-08-06AI485802.90 ppb
2014-08-06AI485814.20 ppb
2014-08-06AI48582ND
2014-08-06AI485832.20 ppb
2014-08-06AI485843.20 ppb
2014-11-04AI589842.10 ppb
2014-11-04AI58985ND
2014-11-04AI589861.20 ppb
2014-11-04AI589872.80 ppb
2014-11-04AI589886.50 ppb
2014-11-04AI58989ND
2014-11-04AI589901.50 ppb
2014-11-04AI589912.00 ppb
2015-02-05AI643451.30 ppb
2015-02-05AI64346ND
2015-02-05AI64347ND
2015-02-05AI643481.90 ppb
2015-02-05AI643491.40 ppb
2015-02-05AI64350ND
2015-02-05AI64351ND
2015-02-05AI643521.40 ppb
2015-05-06AI764741.80 ppb
2015-05-06AI76475ND
2015-05-06AI76476ND
2015-05-06AI764771.70 ppb
2015-05-06AI764787.00 ppb
2015-05-06AI764791.10 ppb
2015-05-06AI76480ND
2015-05-06AI764812.00 ppb
2015-08-05AI85601ND
2015-08-05AI85602ND
2015-08-05AI85603ND
2015-08-05AI856042.90 ppb
2015-11-03AJ003431.60 ppb
2015-11-03AJ00344ND
2015-11-03AJ00345ND
2015-11-03AJ003461.40 ppb
2015-11-03AJ003473.60 ppb
2015-11-03AJ00348ND
2015-11-03AJ003491.60 ppb
2015-11-03AJ003501.90 ppb
2016-02-02AJ055041.20 ppb
2016-02-02AJ05505ND
2016-02-02AJ05506ND
2016-02-02AJ055071.80 ppb
2016-02-02AJ055081.20 ppb
2016-02-02AJ05509ND
2016-02-02AJ055102.20 ppb
2016-02-02AJ055111.10 ppb
2016-05-03AJ113851.50 ppb
2016-05-03AJ11386ND
2016-05-03AJ113871.70 ppb
2016-05-03AJ113883.00 ppb
2016-05-03AJ113895.50 ppb
2016-05-03AJ11390ND
2016-05-03AJ113913.50 ppb
2016-05-03AJ113922.60 ppb
2016-08-02AJ20759ND
2016-08-02AJ20760ND
2016-08-02AJ20761ND
2016-08-02AJ207622.80 ppb
2016-08-02AJ207634.00 ppb
2016-08-02AJ20764ND
2016-08-02AJ207653.40 ppb
2016-08-02AJ207662.30 ppb
2016-11-01AJ324321.60 ppb
2016-11-01AJ32433ND
2016-11-01AJ324341.90 ppb
2016-11-01AJ324351.50 ppb
2016-11-01AJ324364.70 ppb
2016-11-01AJ32437ND
2016-11-01AJ324383.10 ppb
2016-11-01AJ324391.80 ppb
2017-02-07AJ459191.30 ppb
2017-02-07AJ45920ND
2017-02-07AJ45921ND
2017-02-07AJ459222.10 ppb
2017-02-07AJ459232.50 ppb
2017-02-07AJ45924ND
2017-02-07AJ459252.70 ppb
2017-02-07AJ459261.40 ppb
2017-05-03AJ546352.20 ppb
2017-05-03AJ54636ND
2017-05-03AJ546371.10 ppb
2017-05-03AJ546381.60 ppb
2017-05-03AJ546391.30 ppb
2017-05-03AJ54640ND
2017-05-03AJ546413.00 ppb
2017-05-03AJ546422.00 ppb
2017-08-02AJ626191.90 ppb
2017-08-02AJ62620ND
2017-08-02AJ62621ND
2017-08-02AJ626221.90 ppb
2017-08-02AJ626235.00 ppb
2017-08-02AJ62624ND
2017-08-02AJ626253.90 ppb
2017-08-02AJ626261.90 ppb
2017-08-02AJ62789ND
2017-08-03AJ62783ND
2017-08-03AJ62784ND
2017-08-03AJ62785ND
2017-08-03AJ62788ND
2017-08-03AJ62790ND
2017-08-03AJ62791ND
2017-08-03AJ627921.50 ppb
2017-08-07AJ63043ND
2017-08-07AJ63044ND
2017-08-07AJ630450.590 ppb
2017-08-07AJ63046ND
2017-08-07AJ63047ND
2017-08-07AJ630484.70 ppb
2017-08-07AJ63049ND
2017-08-07AJ63052ND
2017-08-07AJ63053ND
2017-08-07AJ630540.600 ppb
2017-08-07AJ63055ND
2017-08-09AJ63545ND
2017-08-09AJ635460.620 ppb
2017-08-09AJ635471.60 ppb
2017-11-06AJ730762.10 ppb
2017-11-06AJ730773.20 ppb
2017-11-06AJ73078ND
2017-11-06AJ730792.40 ppb
2017-11-06AJ730803.10 ppb
2017-11-06AJ73081ND
2017-11-06AJ730823.60 ppb
2017-11-06AJ730832.10 ppb
2018-02-06AJ832661.10 ppb
2018-02-06AJ83267ND
2018-02-06AJ83268ND
2018-02-06AJ83269ND
2018-02-06AJ832701.40 ppb
2018-02-06AJ83271ND
2018-02-06AJ83272ND
2018-02-06AJ83273ND
2018-05-03AJ88665ND
2018-05-03AJ88666ND
2018-05-03AJ886671.50 ppb
2018-05-03AJ886682.60 ppb
2018-05-03AJ886697.50 ppb
2018-05-03AJ88670ND
2018-05-03AJ886712.00 ppb
2018-05-03AJ886721.80 ppb
2018-08-01AJ961601.60 ppb
2018-08-01AJ96161ND
2018-08-01AJ961621.40 ppb
2018-08-01AJ961632.60 ppb
2018-08-01AJ961645.80 ppb
2018-08-01AJ96165ND
2018-08-01AJ961662.60 ppb
2018-08-01AJ961672.00 ppb
2018-10-23AK046491.60 ppb
2018-10-23AK04650ND
2018-10-23AK046511.30 ppb
2018-10-23AK046521.40 ppb
2018-10-23AK046532.90 ppb
2018-10-23AK046541.50 ppb
2018-10-23AK046551.80 ppb
2018-10-23AK046561.70 ppb
2019-02-06AK107141.50 ppb
2019-02-06AK10715ND
2019-02-06AK10716ND
2019-02-06AK107171.30 ppb
2019-02-06AK107181.10 ppb
2019-02-06AK107192.00 ppb
2019-02-06AK107201.90 ppb
2019-02-06AK10721ND
2019-05-01AK16138ND
2019-05-01AK161397.80 ppb
2019-05-01AK16140ND
2019-05-01AK161411.90 ppb
2019-05-01AK161424.70 ppb
2019-05-01AK16143ND
2019-05-01AK161441.90 ppb
2019-05-01AK161452.00 ppb
2019-08-06AK248611.80 ppb
2019-08-06AK24862ND
2019-08-06AK248631.30 ppb
2019-08-06AK248641.50 ppb
2019-08-06AK248653.90 ppb
2019-08-06AK24866ND
2019-08-06AK248672.00 ppb
2019-08-06AK248682.30 ppb
2019-11-06AK362174.50 ppb
2019-11-06AK36218ND
2019-11-06AK362191.10 ppb
2019-11-06AK362204.00 ppb
2019-11-06AK362212.80 ppb
2019-11-06AK36222ND
2019-11-06AK362235.90 ppb
2019-11-06AK362242.40 ppb