Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chloroform

City of Aiken

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.

 

180

Samples

0

Samples exceeding legal limit (MCL)

124

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201218.1 ppb6433ND - 113.6 ppb
201329.0 ppb5232ND - 130.8 ppb
201419.2 ppb1615ND - 51.4 ppb
201518.9 ppb16161.80 ppb - 52.0 ppb
201615.3 ppb1615ND - 44.5 ppb
201721.0 ppb1613ND - 52.2 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
2012-02-292120301-1957.9 ppb
2012-02-292120301-2052.2 ppb
2012-02-292120301-21ND
2012-02-292120301-22ND
2012-02-292120301-238.43 ppb
2012-02-292120301-2427.7 ppb
2012-02-292120301-25ND
2012-02-292120301-2612.5 ppb
2012-02-292120301-2717.7 ppb
2012-02-292120301-28ND
2012-02-292120301-2922.9 ppb
2012-02-292120301-303.36 ppb
2012-02-292120301-31ND
2012-02-292120301-32ND
2012-02-292120301-33ND
2012-02-292120301-34ND
2012-06-132120614-4144.3 ppb
2012-06-132120614-4254.4 ppb
2012-06-132120614-4310.8 ppb
2012-06-132120614-44ND
2012-06-132120614-455.58 ppb
2012-06-132120614-465.56 ppb
2012-06-132120614-47ND
2012-06-132120614-4818.9 ppb
2012-06-132120614-4944.5 ppb
2012-06-132120614-50ND
2012-06-132120614-5132.4 ppb
2012-06-132120614-52ND
2012-06-132120614-53ND
2012-06-132120614-54ND
2012-06-132120614-55ND
2012-06-132120614-56ND
2012-09-122120913-1994.1 ppb
2012-09-122120913-20113.6 ppb
2012-09-122120913-2113.1 ppb
2012-09-122120913-223.14 ppb
2012-09-122120913-2353.8 ppb
2012-09-122120913-2490.6 ppb
2012-09-122120913-25ND
2012-09-122120913-2644.0 ppb
2012-09-122120913-28ND
2012-09-122120913-2999.1 ppb
2012-09-122120913-30ND
2012-09-122120913-3117.2 ppb
2012-09-122120913-3234.7 ppb
2012-09-122120913-33ND
2012-09-122120913-34ND
2012-09-132120913-27ND
2012-12-122121213-1943.2 ppb
2012-12-122121213-2035.9 ppb
2012-12-122121213-21ND
2012-12-122121213-222.09 ppb
2012-12-122121213-2325.4 ppb
2012-12-122121213-2416.8 ppb
2012-12-122121213-25ND
2012-12-122121213-2615.8 ppb
2012-12-122121213-27ND
2012-12-122121213-28ND
2012-12-122121213-2935.8 ppb
2012-12-122121213-30ND
2012-12-122121213-31ND
2012-12-122121213-32ND
2012-12-122121213-33ND
2012-12-122121213-34ND
2013-03-273030015-01RE192.6 ppb
2013-03-273030015-02RE195.6 ppb
2013-03-273030015-033.00 ppb
2013-03-273030015-041.40 ppb
2013-03-273030015-0529.2 ppb
2013-03-273030015-0630.3 ppb
2013-03-273030015-07ND
2013-03-273030015-0814.1 ppb
2013-03-273030015-0940.2 ppb
2013-03-273030015-10ND
2013-03-273030015-1143.7 ppb
2013-03-273030015-12ND
2013-03-273030015-13ND
2013-03-273030015-141.60 ppb
2013-03-273030015-15ND
2013-03-273030015-16ND
2013-06-193060023-01RE192.4 ppb
2013-06-193060023-02RE1122.9 ppb
2013-06-193060023-032.40 ppb
2013-06-193060023-04ND
2013-06-193060023-05RE154.3 ppb
2013-06-193060023-06RE181.8 ppb
2013-06-193060023-07ND
2013-06-193060023-08RE1100.6 ppb
2013-06-193060023-09RE1101.0 ppb
2013-06-193060023-10ND
2013-06-193060023-11RE1130.8 ppb
2013-06-193060023-12ND
2013-06-193060023-13ND
2013-06-193060023-14RE166.6 ppb
2013-06-193060023-15ND
2013-06-193060023-16ND
2013-09-183090015-0145.2 ppb
2013-09-183090015-0237.3 ppb
2013-09-183090015-036.60 ppb
2013-09-183090015-04ND
2013-09-183090015-0544.8 ppb
2013-09-183090015-0641.8 ppb
2013-09-183090015-07ND
2013-09-183090015-0848.7 ppb
2013-09-183090015-0938.5 ppb
2013-09-183090015-10ND
2013-09-183090015-1135.5 ppb
2013-09-183090015-12ND
2013-09-183090015-13ND
2013-09-183090015-1429.3 ppb
2013-09-183090015-15ND
2013-09-183090015-16ND
2013-11-203110004-0140.5 ppb
2013-11-203110004-021.60 ppb
2013-11-203110004-034.40 ppb
2013-11-203110004-0428.6 ppb
2014-02-264020324-0124.9 ppb
2014-02-264020324-02ND
2014-02-264020324-034.90 ppb
2014-02-264020324-0414.1 ppb
2014-05-214050227-0148.7 ppb
2014-05-214050227-021.30 ppb
2014-05-214050227-0340.8 ppb
2014-05-214050227-0419.7 ppb
2014-08-204080430-0138.0 ppb
2014-08-204080430-021.60 ppb
2014-08-204080430-0341.0 ppb
2014-08-204080430-0451.4 ppb
2014-11-244110019-0114.6 ppb
2014-11-244110019-021.40 ppb
2014-11-244110019-031.20 ppb
2014-11-244110019-043.40 ppb
2015-02-255020019-0117.0 ppb
2015-02-255020019-023.20 ppb
2015-02-255020019-034.70 ppb
2015-02-255020019-0412.3 ppb
2015-05-205050006-0135.3 ppb
2015-05-205050006-022.40 ppb
2015-05-205050006-0333.8 ppb
2015-05-205050006-0427.8 ppb
2015-08-265080042-0152.0 ppb
2015-08-265080042-022.10 ppb
2015-08-265080042-0348.1 ppb
2015-08-265080042-0412.4 ppb
2015-11-245110026-0137.5 ppb
2015-11-245110026-021.80 ppb
2015-11-245110026-031.90 ppb
2015-11-245110026-049.50 ppb
2016-02-246020026-045.90 ppb
2016-02-246020026-0117.7 ppb
2016-02-246020026-021.000 ppb
2016-02-246020026-031.000 ppb
2016-05-256050026-0415.2 ppb
2016-05-256050026-0116.2 ppb
2016-05-256050026-021.30 ppb
2016-05-256050026-0321.5 ppb
2016-08-246080042-0430.1 ppb
2016-08-246080042-0144.4 ppb
2016-08-246080042-022.30 ppb
2016-08-246080042-0344.5 ppb
2016-11-226110006-0416.8 ppb
2016-11-226110006-0120.9 ppb
2016-11-226110006-02ND
2016-11-226110006-035.90 ppb
2017-02-227020006-0410.9 ppb
2017-02-227020006-0138.2 ppb
2017-02-227020006-02ND
2017-02-227020006-0328.6 ppb
2017-05-237050026-045.30 ppb
2017-05-237050026-0134.5 ppb
2017-05-237050026-021.10 ppb
2017-05-237050026-0336.0 ppb
2017-08-227080025-0438.9 ppb
2017-08-227080025-0147.1 ppb
2017-08-227080025-02ND
2017-08-227080025-0352.2 ppb
2017-11-207110006-0413.6 ppb
2017-11-207110006-0115.5 ppb
2017-11-207110006-02ND
2017-11-207110006-0314.8 ppb