cis-1,2-Dichloroethylene

City of Stuart - Water Plant

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

MORE ABOUT THIS CONTAMINANT

215

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	0.513 ppb	6	4	ND - 1.10 ppb
2015	0.713 ppb	4	4	0.570 ppb - 0.840 ppb
2016	1.04 ppb	5	5	0.820 ppb - 1.30 ppb
2017	4.04 ppb	40	16	ND - 28.3 ppb
2018	1.22 ppb	48	17	ND - 19.6 ppb
2019	1.34 ppb	112	31	ND - 18.7 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date	Result
2014-01-07	1.10 ppb
2014-04-04	0.690 ppb
2014-07-07	ND
2014-08-15	0.690 ppb
2014-11-04	0.600 ppb
2014-12-16	ND
2015-01-07	0.840 ppb
2015-04-01	0.570 ppb
2015-09-24	0.640 ppb
2015-12-24	0.800 ppb
2016-01-07	1.30 ppb
2016-04-11	0.960 ppb
2016-06-03	1.10 ppb
2016-07-26	1.000 ppb
2016-10-19	0.820 ppb
2017-01-17	0.680 ppb
2017-04-04	0.440 ppb
2017-07-27	ND
2017-08-23	ND
2017-08-23	11.9 ppb
2017-08-23	23.2 ppb
2017-08-23	6.90 ppb
2017-08-23	ND
2017-08-23	ND
2017-08-23	ND
2017-08-23	ND
2017-09-21	ND
2017-09-27	3.20 ppb
2017-09-27	ND
2017-09-27	28.3 ppb
2017-09-27	9.60 ppb
2017-09-27	ND
2017-09-27	ND
2017-09-27	ND
2017-09-27	14.8 ppb
2017-10-20	ND
2017-11-22	ND
2017-11-22	1.90 ppb
2017-11-22	ND
2017-11-22	9.00 ppb
2017-11-22	0.690 ppb
2017-11-22	ND
2017-11-22	ND
2017-11-22	11.3 ppb
2017-11-22	25.9 ppb
2017-11-22	ND
2017-12-06	0.890 ppb
2017-12-06	ND
2017-12-06	ND
2017-12-06	ND
2017-12-06	13.0 ppb
2017-12-06	ND
2017-12-06	ND
2017-12-06	ND
2017-12-06	ND
2018-01-25	ND
2018-04-11	ND
2018-09-17	1.20 ppb
2018-09-17	0.250 ppb
2018-09-17	0.250 ppb
2018-09-17	0.980 ppb
2018-09-17	0.250 ppb
2018-09-17	0.250 ppb
2018-09-17	0.250 ppb
2018-09-17	0.250 ppb
2018-09-17	19.6 ppb
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	0.560 ppb
2018-10-04	0.980 ppb
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	ND
2018-10-04	10.7 ppb
2018-10-04	ND
2018-10-24	ND
2018-10-24	ND
2018-11-20	9.70 ppb
2018-11-20	ND
2018-11-20	ND
2018-11-20	ND
2018-11-20	ND
2018-11-20	ND
2018-11-20	0.830 ppb
2018-11-20	ND
2018-11-20	0.600 ppb
2018-12-05	ND
2018-12-05	ND
2018-12-05	1.20 ppb
2018-12-05	ND
2018-12-05	ND
2018-12-05	ND
2018-12-05	10.7 ppb
2018-12-05	ND
2018-12-05	ND
2019-01-25	ND
2019-02-15	1.30 ppb
2019-02-15	ND
2019-02-15	ND
2019-02-15	ND
2019-02-15	8.80 ppb
2019-02-15	ND
2019-02-15	ND
2019-02-15	ND
2019-03-13	ND
2019-03-13	9.80 ppb
2019-03-13	ND
2019-03-13	1.40 ppb
2019-03-13	ND
2019-03-13	ND
2019-03-13	ND
2019-03-13	0.700 ppb
2019-03-21	0.420 ppb
2019-04-25	ND
2019-04-25	ND
2019-04-25	ND
2019-04-25	1.30 ppb
2019-04-25	ND
2019-04-25	1.40 ppb
2019-04-25	ND
2019-04-25	ND
2019-04-25	ND
2019-04-25	ND
2019-04-25	ND
2019-04-25	17.8 ppb
2019-04-25	ND
2019-04-25	ND
2019-04-25	ND
2019-04-25	10.4 ppb
2019-04-26	ND
2019-04-26	ND
2019-05-20	9.60 ppb
2019-05-20	0.320 ppb
2019-05-20	1.50 ppb
2019-05-20	ND
2019-05-20	ND
2019-05-20	ND
2019-05-20	0.760 ppb
2019-05-20	ND
2019-05-20	ND
2019-05-20	ND
2019-06-18	ND
2019-06-18	ND
2019-07-24	ND
2019-07-24	ND
2019-07-24	ND
2019-07-24	15.6 ppb
2019-07-24	ND
2019-07-24	ND
2019-07-24	1.40 ppb
2019-07-24	ND
2019-07-24	1.70 ppb
2019-07-24	ND
2019-07-24	ND
2019-07-24	ND
2019-07-24	ND
2019-07-24	ND
2019-07-24	ND
2019-07-24	5.30 ppb
2019-07-24	ND
2019-09-17	ND
2019-09-17	ND
2019-09-17	ND
2019-09-17	5.90 ppb
2019-09-17	ND
2019-09-17	ND
2019-09-17	0.600 ppb
2019-09-17	ND
2019-09-17	2.10 ppb
2019-09-17	2.90 ppb
2019-10-21	ND
2019-10-21	ND
2019-10-21	2.80 ppb
2019-10-21	ND
2019-10-21	ND
2019-10-21	ND
2019-10-21	ND
2019-10-21	ND
2019-10-21	ND
2019-10-21	1.80 ppb
2019-10-21	ND
2019-10-21	ND
2019-10-21	ND
2019-10-21	ND
2019-10-21	10.3 ppb
2019-10-21	18.7 ppb
2019-10-21	ND
2019-11-07	ND
2019-11-18	ND
2019-11-18	1.50 ppb
2019-11-18	ND
2019-11-18	ND
2019-11-18	2.00 ppb
2019-11-18	ND
2019-11-18	ND
2019-11-18	ND
2019-11-18	ND
2019-11-18	ND
2019-12-17	1.70 ppb
2019-12-17	ND
2019-12-17	8.60 ppb
2019-12-17	ND
2019-12-17	ND
2019-12-17	ND
2019-12-17	ND
2019-12-17	ND
2019-12-17	1.90 ppb