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EWG's Tap Water Database — 2019 UPDATE

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Chloroform

Kelly Lane WCID 2

NOTE: Kelly Lane WCID 2 purchases water from Manville WSC which is required to test for chloroform. Sample information shown below was taken by Manville WSC.

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.

 

134

Samples

0

Samples exceeding legal limit (MCL)

106

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.19 ppb2217ND - 13.5 ppb
20132.34 ppb2015ND - 10.00 ppb
20145.32 ppb2017ND - 28.3 ppb
20155.45 ppb2622ND - 28.0 ppb
20163.03 ppb2319ND - 12.9 ppb
20174.23 ppb2316ND - 21.1 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

NOTE: Kelly Lane WCID 2 purchases water from Manville WSC which is required to test for chloroform. Sample information shown below was taken by Manville WSC.

Date Lab ID Result
2012-02-08AB807112.60 ppb
2012-02-08AB80709ND
2012-02-08AB806922.30 ppb
2012-02-08AB806913.10 ppb
2012-02-08AB806902.30 ppb
2012-02-08AB806943.70 ppb
2012-02-08AB80693ND
2012-02-08AB806962.30 ppb
2012-02-08AB806972.90 ppb
2012-02-08AB806957.40 ppb
2012-06-14AB927611.000 ppb
2012-06-14AB927532.90 ppb
2012-06-14AB9275113.5 ppb
2012-06-14AB92748ND
2012-08-14AB98054ND
2012-08-14AB980501.50 ppb
2012-08-14AB980569.60 ppb
2012-08-14AB98053ND
2012-10-12AC031641.90 ppb
2012-10-12AC031682.60 ppb
2012-10-12AC031718.60 ppb
2012-10-12AC031671.90 ppb
2013-02-1913026070171.04 ppb
2013-02-191302607021ND
2013-02-191302607019ND
2013-02-1913026070231.71 ppb
2013-02-191302607033ND
2013-02-1913026070341.60 ppb
2013-02-1913026070357.00 ppb
2013-02-191302607036ND
2013-05-0113051120042.50 ppb
2013-05-0113051120052.80 ppb
2013-05-0113051120068.70 ppb
2013-05-011305112007ND
2013-08-15Q13055790061.85 ppb
2013-08-15Q13055790071.46 ppb
2013-08-15Q130557900810.00 ppb
2013-08-15Q13055790091.42 ppb
2013-11-04Q13113150061.60 ppb
2013-11-04Q13113150071.84 ppb
2013-11-04Q13113150081.50 ppb
2013-11-04Q13113150091.75 ppb
2014-03-11AC46497ND
2014-03-11AC464621.90 ppb
2014-03-11AC464632.30 ppb
2014-03-11AC464612.40 ppb
2014-03-11AC464645.70 ppb
2014-06-18AC573026.90 ppb
2014-06-18AC5735810.1 ppb
2014-06-18AC5735728.3 ppb
2014-06-18AC573597.50 ppb
2014-06-18AC57356ND
2014-06-18AC572982.30 ppb
2014-06-18AC57300ND
2014-09-12AC668023.40 ppb
2014-09-12AC668044.10 ppb
2014-09-12AC668053.10 ppb
2014-09-12AC668032.80 ppb
2014-11-24AC727415.00 ppb
2014-11-24AC727758.20 ppb
2014-11-24AC727715.90 ppb
2014-11-24AC727726.40 ppb
2015-03-19AC853571.70 ppb
2015-03-19AC8536728.0 ppb
2015-03-19AC85369ND
2015-03-19AC853511.90 ppb
2015-03-19AC853651.80 ppb
2015-03-19AC852654.10 ppb
2015-03-19AC852855.60 ppb
2015-03-19AC852634.90 ppb
2015-03-19AC852676.00 ppb
2015-05-26AC933104.00 ppb
2015-05-26AC93308ND
2015-05-26AC933121.50 ppb
2015-05-26AC932562.00 ppb
2015-05-26AC932612.60 ppb
2015-05-26AC932541.80 ppb
2015-05-26AC932572.20 ppb
2015-08-17AD042615.60 ppb
2015-08-17AD04262ND
2015-08-17AD042652.30 ppb
2015-08-17AD04258ND
2015-09-29AD0900926.0 ppb
2015-11-18AD139973.30 ppb
2015-11-18AD1399111.8 ppb
2015-11-18AD139941.000 ppb
2015-11-18AD139953.70 ppb
2015-11-18AD1402720.0 ppb
2016-02-08AD224192.60 ppb
2016-02-08AD223991.000 ppb
2016-02-08AD224202.20 ppb
2016-02-08AD224182.10 ppb
2016-04-25AD34017ND
2016-04-25AD340199.10 ppb
2016-04-25AD340151.90 ppb
2016-04-25AD340133.30 ppb
2016-04-25AD34021ND
2016-04-25AD340232.30 ppb
2016-04-25AD339481.70 ppb
2016-04-25AD339491.10 ppb
2016-04-25AD339451.40 ppb
2016-04-25AD339441.20 ppb
2016-07-25AD454142.90 ppb
2016-07-25AD45411ND
2016-07-25AD454204.00 ppb
2016-07-25AD454164.70 ppb
2016-11-09AD57440ND
2016-11-09AD573688.60 ppb
2016-11-09AD5736712.9 ppb
2016-11-09AD573552.90 ppb
2016-11-09AD573643.70 ppb
2017-01-23AD660921.90 ppb
2017-01-23AD66090ND
2017-01-23AD660942.40 ppb
2017-01-23AD660313.90 ppb
2017-01-23AD660333.00 ppb
2017-01-23AD660353.20 ppb
2017-01-23AD660323.70 ppb
2017-04-27AD81512ND
2017-04-27AD8151413.0 ppb
2017-04-27AD81518ND
2017-04-27AD81516ND
2017-04-27AD815016.20 ppb
2017-04-27AD814981.90 ppb
2017-04-27AD815002.00 ppb
2017-04-27AD815025.70 ppb
2017-08-17AD933861.000 ppb
2017-08-17AD93390ND
2017-08-17AD93388ND
2017-08-17AD93389ND
2017-10-27AE0239821.1 ppb
2017-10-27AE0240517.5 ppb
2017-10-27AE024046.90 ppb
2017-10-27AE024063.80 ppb