1,1,1-Trichloroethane

Lca Wlsa Central Division

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.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	13	ND
2015	ND	4	ND
2016	ND	3	ND
2017	ND	11	ND
2018	ND	4	ND
2019	ND	4	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
2014-03-05	14022333-01	ND
2014-03-05	14022333-06	ND
2014-03-05	14022333-05	ND
2014-03-05	14022333-04	ND
2014-03-05	14022333-02	ND
2014-03-05	14022333-03	ND
2014-03-12	14030864-03	ND
2014-03-12	14030864-04	ND
2014-03-12	14030864-05	ND
2014-03-12	14030864-06	ND
2014-03-12	14030864-02	ND
2014-03-12	14030864-01	ND
2014-03-26	14032553-01	ND
2015-02-04	12435972	ND
2015-02-19	12435995	ND
2015-02-19	12436018	ND
2015-03-18	12550656	ND
2016-06-21	14455956	ND
2016-08-18	14786693	ND
2016-08-18	14786664	ND
2017-07-10	16459223	ND
2017-07-10	16459265	ND
2017-07-10	16459244	ND
2017-07-20	16613959	ND
2017-07-20	16613808	ND
2017-07-20	16613910	ND
2017-07-26	16613859	ND
2017-07-27	16614041	ND
2017-08-01	16613731	ND
2017-08-10	16614095	ND
2017-08-29	16772996	ND
2018-03-16	8032172-01	ND
2018-08-23	8074081-07	ND
2018-08-23	8074081-02	ND
2018-08-23	8074081-05	ND
2019-07-11	9072953-01	ND
2019-08-08	9076334-01	ND
2019-08-22	9076420-02	ND
2019-09-16	9076421-02	ND