Overview

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.

State, National, and Health Guidelines for Drinking Water

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

National Standard Exists

Health Concerns:

Harm to the brain and nervous system
Harm to the kidney
Harm to the liver

Want to remove
cis-1,2-Dichloroethylene from your water?

Try these filter technologies:

Activated Carbon,

Reverse Osmosis,

understand filter technology

cis-1,2-Dichloroethylene around the Country

	UTILITIES WITH CONTAMINATION
State	Utilities	People Served
Pennsylvania		16	880,438
California		17	732,624
New York		25	710,852
Iowa		44	581,113
Ohio		26	499,726
Minnesota		9	382,885
Wisconsin		17	350,205
Delaware		5	324,166
Alabama		6	291,030
Illinois		17	260,226
Michigan		9	252,829
Idaho		3	251,342
Indiana		9	235,773
New Jersey		8	203,802
Massachusetts		10	118,657
Georgia		4	106,928
New Mexico		1	87,389
Arizona		2	85,374
Florida		12	65,409
Kansas		5	58,020
Oregon		2	38,834
Virginia		4	32,024
West Virginia		7	31,489
Missouri		5	19,930
North Carolina		4	19,412
Louisiana		2	15,129
Washington		2	13,165
Nebraska		2	11,641
Alaska		1	2,370
South Carolina		2	2,317
Oklahoma		1	2,086
Maryland		1	60

SHOW LESS

Utilities with the highest amounts of cis-1,2-dichloroethylene, 2021-2023

ALL UTILITIES

LARGE UTILITIES

Utility	Location	Tests	Average level	People served
Mountain View Meadows	Vestal, NY	13 of 15	26.4 ppb	140
Clare, City of	Clare, MI	24 of 31	8.19 ppb	3,118
Pinecrest Apartments	Troy, MI	3 of 4	7.23 ppb	57
Paw Homesite	Scranton, PA	12 of 12	4.78 ppb	63
Swan Lake Resort	New River, NJ	4 of 25	4.17 ppb	70
Coraopolis Water & Sewer Authority*	Coraopolis, PA	8 of 8	4.14 ppb	5,804
Richland Township Water Authority*	Quakertown, PA	9 of 9	3.81 ppb	6,800
Genoa	Genoa, IL	7 of 7	3.10 ppb	5,200
Cdcr-high Desert State Prison	Susanville, CA	53 of 75	3.08 ppb	8,641
Blackman Township*	Jackson, MI	14 of 20	2.98 ppb	14,817
Jackson*	Jackson, MI	14 of 20	2.98 ppb	33,165
Beacham Apartments No. 2	Jacksonville, NC	3 of 3	2.96 ppb	475
East Alton	East Alton, IL	12 of 12	2.87 ppb	5,786
Green Meadow Estates Of Rockford Llc	Knoxville, IL	11 of 44	2.31 ppb	250
Rockford*	Rockford, IL	11 of 44	2.31 ppb	147,051
California Domestic Water Company*	Whittier, CA	219 of 297	2.05 ppb	290,814
Mars Borough Water Works	Mars, PA	8 of 9	1.99 ppb	1,956
Andrews Water Department	Andrews, IN	18 of 37	1.90 ppb	1,149
Eliot Woods Condos	Whitman, MA	5 of 6	1.82 ppb	140
Hillcrest Water District	Brewster, NY	3 of 31	1.74 ppb	305
Saint Louis Park	St. Louis Park, MN	22 of 26	1.68 ppb	50,010
Goshen Water Utility	Goshen, IN	1 of 2	1.60 ppb	32,267
Edina	Edina, MN	8 of 13	1.60 ppb	53,494
City of Ripon	Ripon, CA	10 of 17	1.58 ppb	15,979
City of Stuart - Water Plant	Stuart, FL	76 of 195	1.55 ppb	16,841
Antioch	Antioch, IL	7 of 12	1.52 ppb	14,175
Quarryville Borough	Quarryville, PA	12 of 12	1.47 ppb	3,150
Purcellville, Town of	Purcellville, VA	5 of 30	1.39 ppb	8,929
Washington Pike Psd	Wellsburg, WV	10 of 13	1.37 ppb	2,967
Wellsburg, City Of*	Wellsburg, WV	10 of 13	1.37 ppb	3,468
Palmer Water District No.1	Palmer, MA	3 of 22	1.35 ppb	4,789
Garfield Water Department	Garfield, NJ	13 of 39	1.35 ppb	30,487
Burr Oak	Burr Oak, MI	34 of 34	1.32 ppb	828
Union Springs Village*	Union Springs, NY	5 of 23	1.23 ppb	3,000
Springport Water District #1 - South	Cayuga, NY	5 of 23	1.23 ppb	500
Springport Water District #1 - North	Cayuga, NY	5 of 23	1.23 ppb	500
Jefferson Water Department	Jefferson, IA	3 of 4	1.21 ppb	4,182
Greenlawn WD	Greenlawn, NY	1 of 1	1.20 ppb	42,000
Sidney Village	Sidney, NY	15 of 21	1.11 ppb	3,800
Oakboro, Town of	Oakboro, NC	4 of 6	1.10 ppb	3,173
South Bend Water Works	South Bend, IN	35 of 80	1.04 ppb	115,000
Colonial Gardens Mobile Home Court	Farmington Hills, KS	2 of 3	1.03 ppb	1,200
Hunters Island Water District	Manhattan, KS	2 of 3	1.03 ppb	200
City of Manhattan*	Manhattan, KS	2 of 3	1.03 ppb	54,763
Konza Valley Water Benefit District	Manhattan, KS	2 of 3	1.03 ppb	345
Riley County Rural Water District 1*	Manhattan, KS	2 of 3	1.03 ppb	1,512
West Point, City of*	West Point, NE	13 of 16	1.02 ppb	3,550
Lukins Brothers Water Company*	South Lake Tahoe, CA	37 of 73	0.984 ppb	3,267
Ej Water-coalton	Dieterich, IL	9 of 12	0.968 ppb	350
Nokomis*	Nokomis, IL	9 of 12	0.968 ppb	2,370

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report cis-1,2-Dichloroethylene, but it likely has the contaminant in its water supply.

Utility	Location	Tests	Average level	People served
Blackman Township*	Jackson, MI	14 of 20	2.98 ppb	14,817
Jackson*	Jackson, MI	14 of 20	2.98 ppb	33,165
Rockford*	Rockford, IL	11 of 44	2.31 ppb	147,051
California Domestic Water Company*	Whittier, CA	219 of 297	2.05 ppb	290,814
Saint Louis Park	St. Louis Park, MN	22 of 26	1.68 ppb	50,010
Goshen Water Utility	Goshen, IN	1 of 2	1.60 ppb	32,267
Edina	Edina, MN	8 of 13	1.60 ppb	53,494
City of Ripon	Ripon, CA	10 of 17	1.58 ppb	15,979
City of Stuart - Water Plant	Stuart, FL	76 of 195	1.55 ppb	16,841
Antioch	Antioch, IL	7 of 12	1.52 ppb	14,175
Garfield Water Department	Garfield, NJ	13 of 39	1.35 ppb	30,487
Greenlawn WD	Greenlawn, NY	1 of 1	1.20 ppb	42,000
South Bend Water Works	South Bend, IN	35 of 80	1.04 ppb	115,000
City of Manhattan*	Manhattan, KS	2 of 3	1.03 ppb	54,763
Garden City	Garden City, NY	96 of 383	0.850 ppb	46,000
Grafton Waterworks	Grafton, WI	46 of 93	0.808 ppb	11,745
Bourne Water District*	Pocasset, MA	11 of 24	0.807 ppb	22,500
Linda County Water District	Marysville, CA	4 of 10	0.796 ppb	21,654
Kalamazoo	Kalamazoo, MI	38 of 70	0.717 ppb	192,992
Weirton Area Water Board*	Weirton, WV	4 of 5	0.702 ppb	18,633
Indiana American Water - Kokomo	Greenwood, IN	3 of 4	0.700 ppb	54,718
Hampton Shaler Water Authority*	Allison Park, PA	5 of 6	0.667 ppb	61,949
Faribault	Faribault, MN	3 of 3	0.587 ppb	23,718
Eden Prairie	Eden Prairie, MN	3 of 3	0.583 ppb	63,726
Warren Water District*	Indianola, IA	17 of 17	0.582 ppb	20,095
Clive Water Department	Clive, IA	7 of 7	0.557 ppb	18,601
Compton Water Department	Compton, CA	12 of 36	0.544 ppb	74,877
South Huntington Water Department	Centerport, NY	2 of 2	0.540 ppb	81,760
Urbandale Water Utility*	Urbandale, IA	5 of 5	0.540 ppb	45,600
Edwardsville Water Corporation*	Georgetown, IN	1 of 1	0.520 ppb	10,442
Waukee Water Supply*	Waukee, IA	5 of 6	0.483 ppb	23,940
City of Winter Springs	Winter Springs, FL	4 of 6	0.463 ppb	34,657
Freeport	Freeport, IL	6 of 10	0.440 ppb	23,930
Dix Hills Water District	Huntington, NY	2 of 2	0.400 ppb	34,522
City of Plaquemine Water System*	Plaquemine, LA	8 of 13	0.360 ppb	14,043
Jblm Mcchord Field	Joint Base Lewis-mcchord, WA	5 of 13	0.325 ppb	13,115
Crystal Lake*	Crystal Lake, IL	5 of 15	0.325 ppb	40,635
Madison Water Department*	Madison, IN	3 of 8	0.325 ppb	15,323
Collingswood Water Depar	Pennsauken, NJ	4 of 21	0.310 ppb	24,500
Liberty Utilities - Bellflower - Norwalk	Downey, CA	8 of 29	0.276 ppb	72,964
Muhlenberg Twp Municipal Authority	Reading, PA	3 of 38	0.253 ppb	21,000
Rochester	Rochester, MN	4 of 33	0.233 ppb	121,395
Cedarburg L & W Commission	Cedarburg, WI	22 of 86	0.225 ppb	11,900
Jones County*	Gray, GA	2 of 5	0.224 ppb	12,736
Irondale Water System	Irondale, AL	3 of 16	0.219 ppb	10,098
Olivehurst Public UD	Olivehurst, CA	2 of 6	0.213 ppb	16,595
Robbinsdale	Robbinsdale, MN	3 of 4	0.208 ppb	14,300
Norwalk Water Supply	Norwalk, IA	5 of 14	0.207 ppb	12,799
West Des Moines Water Works	West Des Moines, IA	5 of 14	0.207 ppb	68,723
Johnston Municipal Water Supply	Johnston, IA	5 of 14	0.207 ppb	24,064

EWG’s Tap
Water Database

Nitrate in
Tap Water

CONTAMINANT

cis-1,2-Dichloroethylene

STATES DETECTED

32

serves

6.7 million

utilities detected

278

Overview

State, National, and Health Guidelines for Drinking Water

National Standard Exists

Health Concerns:

Want to remove
cis-1,2-Dichloroethylene from your water?

cis-1,2-Dichloroethylene around the Country

Utilities with the highest amounts of cis-1,2-dichloroethylene, 2021-2023

Know the Standards

Take Action

Need help finding a filter?

We’re in this together

Protect your water

EWG’s TapWater Database

CONTAMINANT

cis-1,2-Dichloroethylene

STATES DETECTED

32

serves

6.7 million

utilities detected

278

Overview

State, National, and Health Guidelines for Drinking Water

National Standard Exists

Health Concerns:

Want to removecis-1,2-Dichloroethylene from your water?

cis-1,2-Dichloroethylene around the Country

Utilities with the highest amounts of cis-1,2-dichloroethylene, 2021-2023

Know the Standards

Take Action

Need help finding a filter?

We’re in this together

Protect your water

EWG’s Tap
Water Database

Want to remove
cis-1,2-Dichloroethylene from your water?