1,1,1-Trichloroethane

Altoona Water Authority

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	Range of results
2013	N/A	0	N/A
2014	ND	6	ND
2015	ND	6	ND
2016	ND	5	ND
2017	ND	6	ND
2018	ND	6	ND
2019	ND	5	ND

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
2014-08-07	4H07065-01	ND
2014-08-07	4H07067-01	ND
2014-08-08	4H08030-01	ND
2014-08-08	4H08045-01	ND
2014-08-08	4H08031-01	ND
2014-08-08	4H08044-01	ND
2015-07-22	13058950	ND
2015-07-22	13058971	ND
2015-07-22	13058992	ND
2015-07-22	13059055	ND
2015-07-22	13059013	ND
2015-07-22	13059034	ND
2016-07-13	14631777	ND
2016-07-13	14631823	ND
2016-07-13	14631800	ND
2016-07-13	14631754	ND
2016-07-14	14632189	ND
2017-02-14	15705268	ND
2017-08-08	16624636	ND
2017-08-08	16624615	ND
2017-08-08	16624657	ND
2017-08-08	16624678	ND
2017-08-16	16624715	ND
2018-08-28	8H28047-01	ND
2018-08-28	8H28031-01	ND
2018-08-28	8H28032-01	ND
2018-08-28	8H28051-01	ND
2018-08-28	8H28044-01	ND
2018-08-28	8H28046-01	ND
2019-11-06	9K07058-03	ND
2019-11-06	9K07058-01	ND
2019-11-07	9K07074-01	ND
2019-11-07	9K07072-01	ND
2019-12-05	9L05126-01	ND