1,1,1-Trichloroethane

Emmaus Borough Public Water

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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107

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	0.0250 ppb	20	1	ND - 0.500 ppb
2015	ND	20	0	ND
2016	0.0250 ppb	20	1	ND - 0.500 ppb
2017	0.0300 ppb	20	1	ND - 0.600 ppb
2018	ND	13	0	ND
2019	ND	14	0	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
2014-02-26	140008220	0.500 ppb
2014-02-26	140008221	ND
2014-02-26	140008222	ND
2014-02-26	140008223	ND
2014-02-26	140008217	ND
2014-02-26	140008218	ND
2014-02-26	140008219	ND
2014-02-26	140008216	ND
2014-05-27	140021794	ND
2014-05-27	140021791	ND
2014-05-27	140021792	ND
2014-05-27	140021790	ND
2014-08-28	140038937	ND
2014-08-28	140038934	ND
2014-08-28	140038935	ND
2014-08-28	140038933	ND
2014-11-25	140053580	ND
2014-11-25	140053577	ND
2014-11-25	140053578	ND
2014-11-25	140053576	ND
2015-02-24	12434958	ND
2015-02-24	12434980	ND
2015-02-24	12435001	ND
2015-02-24	12435022	ND
2015-02-24	12434892	ND
2015-02-24	12434913	ND
2015-02-24	12434935	ND
2015-02-24	12434871	ND
2015-05-27	12788712	ND
2015-05-27	12788654	ND
2015-05-27	12788676	ND
2015-05-27	12788633	ND
2015-08-26	13301766	ND
2015-08-26	13301720	ND
2015-08-26	13301741	ND
2015-08-26	13301701	ND
2015-11-23	13548688	ND
2015-11-23	13548552	ND
2015-11-23	13548575	ND
2015-11-23	13548531	ND
2016-03-07	14020468	0.500 ppb
2016-03-07	14020490	ND
2016-03-07	14020511	ND
2016-03-07	14020532	ND
2016-03-07	14020401	ND
2016-03-07	14020422	ND
2016-03-07	14020443	ND
2016-03-07	14020381	ND
2016-05-24	14296579	ND
2016-05-24	14296555	ND
2016-05-24	14618852	ND
2016-05-24	14296535	ND
2016-08-30	14785480	ND
2016-08-30	14785431	ND
2016-08-30	14785468	ND
2016-08-30	14785410	ND
2016-11-17	15267421	ND
2016-11-17	15267374	ND
2016-11-17	15267398	ND
2016-11-17	15267360	ND
2017-03-07	15836086	0.600 ppb
2017-03-07	15836083	ND
2017-03-07	15836084	ND
2017-03-07	15836085	ND
2017-03-07	15836079	ND
2017-03-07	15836080	ND
2017-03-07	15836081	ND
2017-03-07	15836082	ND
2017-05-24	16142607	ND
2017-05-24	16142608	ND
2017-05-24	16142609	ND
2017-05-24	16142610	ND
2017-08-31	16612322	ND
2017-08-31	16612323	ND
2017-08-31	16612324	ND
2017-08-31	16612325	ND
2017-11-09	17345774	ND
2017-11-09	17345775	ND
2017-11-09	17345776	ND
2017-11-09	17345777	ND
2018-03-08	8003525-02	ND
2018-03-08	8003525-03	ND
2018-03-08	8003525-04	ND
2018-03-08	8003525-01	ND
2018-05-01	8001201-01	ND
2018-05-01	8001201-02	ND
2018-05-01	8001201-03	ND
2018-08-03	8003166-01	ND
2018-08-03	8003166-02	ND
2018-08-03	8003166-03	ND
2018-11-01	8030989-01	ND
2018-11-01	8030989-02	ND
2018-11-01	8030989-03	ND
2019-02-11	9001168-02	ND
2019-02-11	9001168-03	ND
2019-02-11	9001168-04	ND
2019-02-11	9001168-01	ND
2019-04-18	9009850-01	ND
2019-04-18	9009850-02	ND
2019-04-18	9009850-03	ND
2019-07-18	9020517-01RE	ND
2019-07-18	9020517-02RE	ND
2019-07-18	9020517-03RE	ND
2019-11-04	9035700-01	ND
2019-11-04	9035700-02	ND
2019-11-04	9035700-03	ND
2019-11-04	9035700-05	ND