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EWG's Tap Water Database — 2021 UPDATE

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Chloroform

Millville Water Department

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

 

163

Samples

0

Samples exceeding legal limit (MCL)

62

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.249 ppb3112ND - 1.40 ppb
20150.353 ppb3224ND - 1.37 ppb
20160.442 ppb2015ND - 1.40 ppb
20170.563 ppb16160.1000 ppb - 1.10 ppb
20180.456 ppb3213ND - 3.10 ppb
20190.381 ppb3210ND - 2.90 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
2014-03-04L4524760-1ND
2014-03-04L4524760-2ND
2014-03-04L4524760-30.120 ppb
2014-03-19L4868638-4ND
2014-03-19L4868638-3ND
2014-03-19L4868638-2ND
2014-03-19L4868638-1ND
2014-05-21L4982861-1ND
2014-05-21L4982861-2ND
2014-05-21L4982861-30.0900 ppb
2014-06-04L3797724-1ND
2014-06-18L4982860-4ND
2014-06-18L4982860-1ND
2014-06-18L4982860-31.27 ppb
2014-06-18L4982860-2ND
2014-08-13L5111388-2ND
2014-08-13L5111388-30.540 ppb
2014-08-13L5111388-4ND
2014-08-13L5111388-5ND
2014-08-13L5111388-10.940 ppb
2014-09-17L5111385-41.03 ppb
2014-09-17L5111385-1ND
2014-09-17L5111385-31.40 ppb
2014-09-17L5111385-2ND
2014-11-18L5236424-40.870 ppb
2014-11-18L5236424-30.200 ppb
2014-11-18L5236424-20.520 ppb
2014-11-18L5236424-10.340 ppb
2014-11-18L5246821-1ND
2014-11-18L5246821-2ND
2014-11-18L5246821-30.400 ppb
2015-02-25L5467018-10.1000 ppb
2015-02-25L5467018-2ND
2015-02-25L5467018-3ND
2015-02-25L5467018-40.220 ppb
2015-03-18L5458071-40.590 ppb
2015-03-18L5458071-10.130 ppb
2015-03-18L5458071-30.410 ppb
2015-03-18L5458071-20.330 ppb
2015-05-13L5496750-1ND
2015-05-13L5496750-3ND
2015-05-13L5496750-40.0800 ppb
2015-05-13L5496750-20.1000 ppb
2015-06-17L5328049-41.12 ppb
2015-06-17L5328049-10.400 ppb
2015-06-17L5328049-30.820 ppb
2015-06-17L5328049-20.910 ppb
2015-08-12L5651051-4ND
2015-08-12L5651051-6ND
2015-08-12L5651051-10.130 ppb
2015-08-12L5651051-70.140 ppb
2015-09-16L5779131-41.37 ppb
2015-09-16L5779131-10.150 ppb
2015-09-16L5779131-30.870 ppb
2015-09-16L5779131-20.980 ppb
2015-11-11L5363756-4ND
2015-11-11L5363756-5ND
2015-11-11L5363756-60.0900 ppb
2015-11-11L5363756-70.260 ppb
2015-12-16L5595174-40.860 ppb
2015-12-16L5595174-10.160 ppb
2015-12-16L5595174-30.600 ppb
2015-12-16L5595174-20.490 ppb
2016-02-03L5965792-4ND
2016-02-03L5965792-5ND
2016-02-03L5965792-7ND
2016-02-03L5965792-60.140 ppb
2016-03-15L5926137-40.600 ppb
2016-03-15L5926137-1ND
2016-03-15L5926137-30.300 ppb
2016-03-15L5926137-20.300 ppb
2016-06-15L6268377-41.000 ppb
2016-06-15L6268377-10.1000 ppb
2016-06-15L6268377-30.900 ppb
2016-06-15L6268377-20.600 ppb
2016-09-13L6432339-41.40 ppb
2016-09-13L6432339-10.1000 ppb
2016-09-13L6432339-31.10 ppb
2016-09-13L6432339-20.500 ppb
2016-12-14L6560845-40.800 ppb
2016-12-14L6560845-1ND
2016-12-14L6560845-30.500 ppb
2016-12-14L6560845-20.500 ppb
2017-03-13L6688463-40.700 ppb
2017-03-13L6688463-10.1000 ppb
2017-03-13L6688463-30.500 ppb
2017-03-13L6688463-20.400 ppb
2017-06-14L6815482-40.900 ppb
2017-06-14L6815482-10.1000 ppb
2017-06-14L6815482-31.000 ppb
2017-06-14L6815482-20.600 ppb
2017-09-12L6940691-41.10 ppb
2017-09-12L6940691-10.1000 ppb
2017-09-12L6940691-31.000 ppb
2017-09-12L6940691-20.500 ppb
2017-12-13L6973383-40.700 ppb
2017-12-13L6973383-30.1000 ppb
2017-12-13L6973383-20.600 ppb
2017-12-13L6973383-10.600 ppb
2018-03-083803090210.700 ppb
2018-03-08380309019ND
2018-03-083803090170.600 ppb
2018-03-083803090150.600 ppb
2018-03-08380309024ND
2018-03-08380309025ND
2018-03-08380309027ND
2018-03-08380309026ND
2018-05-16380516090ND
2018-05-16380516091ND
2018-05-16380516092ND
2018-05-16380516093ND
2018-06-053806071171.10 ppb
2018-06-05380607115ND
2018-06-053806071131.50 ppb
2018-06-053806071111.000 ppb
2018-08-22380822702ND
2018-08-22380822703ND
2018-08-22380822704ND
2018-08-22380822705ND
2018-09-063809067060.900 ppb
2018-09-06380906704ND
2018-09-063809067021.60 ppb
2018-09-063809067001.30 ppb
2018-11-14381114705ND
2018-11-14381114706ND
2018-11-143811147070.800 ppb
2018-11-14381114708ND
2018-12-07381207700.13.10 ppb
2018-12-07381207702.1ND
2018-12-07381207701.10.700 ppb
2018-12-07381207703.10.700 ppb
2019-02-21390221706ND
2019-02-21390221707ND
2019-02-21390221708ND
2019-02-21390221709ND
2019-03-07390307720.10.700 ppb
2019-03-07390307719.1ND
2019-03-07390307718.1ND
2019-03-07390307717.11.000 ppb
2019-05-09390509712ND
2019-05-09390509713ND
2019-05-09390509714ND
2019-05-09390509715ND
2019-06-06390606703.11.000 ppb
2019-06-06390606700.1ND
2019-06-06390606702.11.60 ppb
2019-06-06390606701.10.900 ppb
2019-08-28390828704ND
2019-08-28390828705ND
2019-08-28390828706ND
2019-08-28390828707.1ND
2019-09-053909067072.90 ppb
2019-09-05390906704ND
2019-09-053909067061.40 ppb
2019-09-053909067050.600 ppb
2019-11-21391121772ND
2019-11-21391121773ND
2019-11-21391121774ND
2019-11-21391121775ND
2019-12-05391205703.2A0.900 ppb
2019-12-05391205702.2AND
2019-12-05391205701.2AND
2019-12-05391205700.2A1.20 ppb