Know Your Environment. Protect Your Health.

Chloroform

Hoosick Falls

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.

 

86

Samples

0

Samples exceeding legal limit (MCL)

44

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.414 ppb143ND - 2.70 ppb
20190.446 ppb134ND - 1.70 ppb
20201.15 ppb138ND - 4.38 ppb
20211.23 ppb149ND - 4.61 ppb
20221.01 ppb1610ND - 4.11 ppb
20230.918 ppb1610ND - 2.96 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-20JH1801169ND
2018-02-20JH1801167ND
2018-02-20JH1801165ND
2018-02-20JH1801171-72ND
2018-02-20JH1801171ND
2018-06-18JH1804228ND
2018-06-18JH18042332.00 ppb
2018-06-18JH18042312.70 ppb
2018-06-18JH1804229ND
2018-06-18JH1804227ND
2018-12-11JH1809751ND
2018-12-11JH809749ND
2018-12-11JH18097501.10 ppb
2018-12-11JH1809748ND
2019-03-11JH1901460ND
2019-03-11JH1901456ND
2019-03-11JH1901454ND
2019-03-11JH1901458ND
2019-06-12JH1903676-DBP1.70 ppb
2019-06-12JH1903674-THM1.30 ppb
2019-06-12JH1903675-THMND
2019-06-12JH19036761.70 ppb
2019-06-12JH1903673-THM1.10 ppb
2019-12-09JH1908729ND
2019-12-09JH1908730ND
2019-12-09JH1908731ND
2019-12-09JH1908728ND
2020-06-08JH2003807-THM2.20 ppb
2020-06-08JH2003809-THMND
2020-06-08JH2003808-THM1.40 ppb
2020-06-08JH2003806-THM1.60 ppb
2020-08-13L2032972-DBPND
2020-09-14JH20069712.08 ppb
2020-09-14JH20069754.38 ppb
2020-09-14JH20069691.48 ppb
2020-09-14JH20069730.610 ppb
2020-12-14JH2009691ND
2020-12-14JH20096891.21 ppb
2020-12-14JH2009687ND
2020-12-14JH2009693ND
2021-03-16JH21019960.770 ppb
2021-03-16JH21019941.11 ppb
2021-06-14JH21045402.10 ppb
2021-06-14JH21045463.70 ppb
2021-06-14JH21045441.20 ppb
2021-06-14JH2104542ND
2021-09-20JH21085641.51 ppb
2021-09-20JH21085691.48 ppb
2021-09-20JH21085660.690 ppb
2021-09-20JH21085704.61 ppb
2021-12-06JH2110944THMND
2021-12-06JH2110942ND
2021-12-06JH2110938ND
2021-12-06JH2110940ND
2022-03-07JH2201778ND
2022-03-07JH2201776ND
2022-03-07JH2201782ND
2022-03-07JH2201780ND
2022-06-14JH22045611.62 ppb
2022-06-14JH22045592.40 ppb
2022-06-14JH22045650.880 ppb
2022-06-14JH2204563ND
2022-09-21JH22083052.20 ppb
2022-09-21JH22083090.790 ppb
2022-09-21JH22083070.900 ppb
2022-09-21JH22083034.11 ppb
2022-12-13JH22106391.54 ppb
2022-12-13JH22106370.720 ppb
2022-12-13JH22106330.920 ppb
2022-12-13JH2210635ND
2023-03-21JH2302116ND
2023-03-21JH23021180.960 ppb
2023-03-21JH2302114ND
2023-03-21JH2302112ND
2023-06-06JH23041881.17 ppb
2023-06-06JH23041940.940 ppb
2023-06-06JH23041920.520 ppb
2023-06-06JH23041902.42 ppb
2023-09-12JH23078172.96 ppb
2023-09-12JH23078212.89 ppb
2023-09-12JH23078190.830 ppb
2023-09-12JH23077823ND
2023-12-12JH2310822ND
2023-12-12JH2310828ND
2023-12-12JH23108241.41 ppb
2023-12-12JH23108260.580 ppb