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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

South Bend Water Works

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

 

131

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.144 ppb92ND - 0.700 ppb
2015N/A00N/A
2016ND30ND
20170.207 ppb5611ND - 1.90 ppb
2018ND270ND
20190.0778 ppb364ND - 0.800 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
2014-05-213030221RV-1402ND
2014-05-223031802RV-1402ND
2014-05-293034659RV-1402ND
2014-06-053038372RV-1402ND
2014-06-053038373RV-1402ND
2014-06-053038374RV-1402ND
2014-07-183065664RV-1403ND
2014-07-183065665RV-14030.700 ppb
2014-07-183065666RV-14030.600 ppb
2016-09-22373269RV-1603ND
2016-10-04374000RV-1604ND
2016-10-24375485RV-1604ND
2017-02-073632950RV-1701ND
2017-02-073632952RV-1701ND
2017-02-083634164RV-17010.700 ppb
2017-02-093635284RV-17011.10 ppb
2017-02-093635286RV-1701ND
2017-02-173640283RV-17010.900 ppb
2017-02-243644353RV-17011.90 ppb
2017-02-283646158RV-1701ND
2017-03-083650536RV-1701ND
2017-03-08384204RV-1701ND
2017-03-093651411RV-1701ND
2017-03-09384337RV-1701ND
2017-03-103652024RV-1701ND
2017-03-103652025RV-1701ND
2017-03-10384409RV-1701ND
2017-03-133652961RV-1701ND
2017-03-13384476RV-1701ND
2017-03-14284557RV-1701ND
2017-03-143653637RV-17010.800 ppb
2017-03-143653638RV-1701ND
2017-03-14384557RV-17010.800 ppb
2017-03-203656620RV-1701ND
2017-03-20384865RV-1701ND
2017-03-283662056RV-1701ND
2017-03-293663301RV-17011.20 ppb
2017-03-293855496RV-17011.20 ppb
2017-03-303664183RV-17011.000 ppb
2017-04-183676153RV-17021.30 ppb
2017-04-203678270RV-1702ND
2017-04-203678272RV-1702ND
2017-04-273683089RV-1702ND
2017-05-033686136RV-1702ND
2017-05-053688270RV-1702ND
2017-05-093690243RV-1702ND
2017-06-063707076RV-1702ND
2017-06-063707077RV-1702ND
2017-06-083709605RV-1702ND
2017-06-223718872RV-1702ND
2017-06-283722069RV-1702ND
2017-06-293723855RV-1702ND
2017-07-133731290RV-17030.700 ppb
2017-07-193735753RV-1703ND
2017-07-193735754RV-1703ND
2017-08-153756533RV-1703ND
2017-08-153756552RV-1703ND
2017-09-123776266RV-1703ND
2017-09-123776267RV-1703ND
2017-09-253785511RV-1703ND
2017-09-28399192RV-1703ND
2017-10-25401366RV-1704ND
2017-10-26401432RV-1704ND
2017-11-16402987RV-1704ND
2017-11-27403480RV-1704ND
2017-12-19405161RV-1704ND
2017-12-21405404RV-1704ND
2017-12-29405734RV-1704ND
2018-04-25414680RV-1802ND
2018-04-25414920RV-1802ND
2018-05-163937315RV-1802ND
2018-05-173939542RV-1802ND
2018-05-183939978RV-1802ND
2018-06-07418614RV-1802ND
2018-06-14419357RV-1802ND
2018-07-113985111RV-1803ND
2018-07-113985112RV-1803ND
2018-07-113985113RV-1803ND
2018-07-193995449RV-1803ND
2018-08-09425426RV-1803ND
2018-08-09425532RV-1803ND
2018-09-194060738RV-1803ND
2018-09-194060739RV-1803ND
2018-09-204063034RV-1803ND
2018-09-214063574RV-1803ND
2018-09-274070482RV-1803ND
2018-10-24434025RV-1804ND
2018-10-25434064RV-1804ND
2018-11-08435404RV-1804ND
2018-11-09435524RV-1804ND
2018-11-28437015RV-1804ND
2018-12-064142438RV-1804ND
2018-12-064142439RV-1804ND
2018-12-064145752RV-1804ND
2018-12-064154072RV-1804ND
2019-01-024161766RV-1901ND
2019-01-024161767RV-1901ND
2019-01-074165628RV-19010.800 ppb
2019-02-144197825RV-1901ND
2019-02-144197826RV-19010.600 ppb
2019-02-144197827RV-19010.800 ppb
2019-02-214204952RV-1901ND
2019-02-274209984RV-1901ND
2019-03-12445768RV-1901ND
2019-03-29447366RV-1901ND
2019-04-174262712RV-1902ND
2019-04-174262713RV-1902ND
2019-04-244270770RV-1902ND
2019-04-244270771RV-1902ND
2019-05-02450735RV-1902ND
2019-05-02452296RV-1902ND
2019-05-02453728RV-1902ND
2019-05-30453858RV-1902ND
2019-06-06454412RV-1902ND
2019-06-25456374RV-1902ND
2019-07-10457913RV-1903ND
2019-07-25459662RV-1903ND
2019-07-31460126RV-1903ND
2019-08-084379218RV-1903ND
2019-08-094380516RV-1903ND
2019-08-2908/30/2019ND
2019-08-294403462RV-1903ND
2019-08-304405111RV-1903ND
2019-09-26466586RV-1903ND
2019-09-30466851RV-1903ND
2019-10-23469018RV-1904ND
2019-11-05469985RV-1904ND
2019-11-18471319RV-1904ND
2019-12-09473040RV-1904ND
2019-12-09473436RV-1904ND
2019-12-1945189470.600 ppb