1,1,1-Trichloroethane

Cassadaga Village

1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	N/A	0	0	N/A
2015	0.415 ppb	6	3	ND - 0.950 ppb
2016	0.320 ppb	2	1	ND - 0.640 ppb
2017	0.210 ppb	4	1	ND - 0.840 ppb
2018	0.412 ppb	6	3	ND - 0.900 ppb
2019	0.762 ppb	5	4	ND - 1.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date	Lab ID	Result
2015-05-05	15POCS WELL#1 CA	0.700 ppb
2015-05-05	15POC RAW#5 CASS	ND
2015-05-05	15POCS EP#4 CASS	ND
2015-07-30	3RDQT15 POC EP#1	0.840 ppb
2015-10-22	4THQT15 WELL #4	ND
2015-10-22	4THQT15 WELL#1CA	0.950 ppb
2016-06-22	POCS16 WELL #1	0.640 ppb
2016-12-13	2016 POC WELL 5	ND
2017-02-08	2ND QUARTERLY 1S	ND
2017-06-07	2NDQT17 POC WELL	ND
2017-08-23	POCS17 ENTRY PT	0.840 ppb
2017-08-23	3RDQT17 POCS EP#	ND
2018-03-21	POC 2018	ND
2018-07-16	POCS 2018 CASS W	ND
2018-07-16	POCS 2018 CASS W	0.700 ppb
2018-07-16	POCS 2018 CASS W	ND
2018-10-03	2018 POC CASSADA	0.870 ppb
2018-10-09	POCS 2018 CASS R	0.900 ppb
2019-03-20	POCS 19 WL5 CASS	ND
2019-03-20	Q1 19 POCS WL1 C	0.700 ppb
2019-05-22	Q2 19 POCS WL1 C	0.730 ppb
2019-08-28	Q3 19 POCS WL1 C	0.780 ppb
2019-11-06	Q4 19 POCS WL1 C	1.60 ppb