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Contaminant guide

cis-1,2-Dichloroethylene in drinking water

The EPA limit for cis-1,2-Dichloroethylene in drinking water is 70 µg/L. Of the 34,526 water suppliers tested, 286 had it detected.

70 µg/L
EPA limit (MCL)
0.8%
of suppliers detected it
(286/34,526)

What the EPA limit means

⚖️

70 µg/L

Maximum Contaminant Level — the enforceable ceiling a supplier must stay under.

🎯

70 µg/L

Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.

🧪

SYR4

Where these measurements come from. Hover the tag for the EPA programme and years.

Where cis-1,2-Dichloroethylene was found

The water suppliers reporting the highest levels, worst first.

SupplierCityStateLevel vs EPA limit
Huber Heights Public Water System Huber Heights OH
109 µg/L 156%
of the EPA limit, in the worst sample — 70 µg/L
Town of Hempstead Water Department Hempstead NY
87.1 µg/L 124%
of the EPA limit, in the worst sample — 70 µg/L
Bethpage Wd — —
74.5 µg/L 106%
of the EPA limit, in the worst sample — 70 µg/L
City of Alhambra Alhambra CA
50 µg/L 71%
of the EPA limit 70 µg/L
Paw Homesite Scranton PA
49.2 µg/L 70%
of the EPA limit 70 µg/L
Crystal Lake Crystal Lake IL
48.6 µg/L 69%
of the EPA limit 70 µg/L
Andrews Water Department Andrews IN
38 µg/L 54%
of the EPA limit 70 µg/L
Nokomis Nokomis IL
36 µg/L 51%
of the EPA limit 70 µg/L
Wa of Western Nassau North Hempstead NY
33.3 µg/L 48%
of the EPA limit 70 µg/L
Swan Lake Resort Galloway twp-0111 AZ
32.8 µg/L 47%
of the EPA limit 70 µg/L
Hicksville Wd Oyster Bay NY
32.5 µg/L 46%
of the EPA limit 70 µg/L
Hillcrest Water District Southeast NY
31.4 µg/L 45%
of the EPA limit 70 µg/L
Palmer Water District no.1 Palmer MA
30.2 µg/L 43%
of the EPA limit 70 µg/L
Perkasie Regional Authority Sellersville PA
29.6 µg/L 42%
of the EPA limit 70 µg/L
Purcellville, Town of Purcellville VA
29 µg/L 41%
of the EPA limit 70 µg/L
Stuart, City of - Water Plant Stuart FL
28.3 µg/L 40%
of the EPA limit 70 µg/L
Plainview Wd — —
23.9 µg/L 34%
of the EPA limit 70 µg/L
Glendale-City, Water Dept. Glendale CA
22 µg/L 31%
of the EPA limit 70 µg/L
Grafton Water District Grafton MA
21 µg/L 30%
of the EPA limit 70 µg/L
Wa of Great Neck North Thomaston NY
20.9 µg/L 30%
of the EPA limit 70 µg/L
Pasadena Water and Power Pasadena CA
20.7 µg/L 30%
of the EPA limit 70 µg/L
Saint Louis Park St. Louis Park MN
20 µg/L 29%
of the EPA limit 70 µg/L
Manhasset Lakeville Wd North Hempstead NY
19.1 µg/L 27%
of the EPA limit 70 µg/L
Edina Edina MN
17 µg/L 24%
of the EPA limit 70 µg/L
Burlington Water Dept Burlington MA
16 µg/L 23%
of the EPA limit 70 µg/L

Frequently asked questions about cis-1,2-Dichloroethylene

What is cis-1,2-Dichloroethylene in drinking water?

cis-1,2-Dichloroethylene is monitored in US public drinking water under EPA rules. Each supplier's result is reported to the EPA and published here with its source and period.

What is the EPA limit for cis-1,2-Dichloroethylene?

The EPA's Maximum Contaminant Level for cis-1,2-Dichloroethylene is 70 µg/L, and its health goal (MCLG) is 70 µg/L. A result above the limit means the supplier must act; the goal is the level at which no health effects are expected.

How common is cis-1,2-Dichloroethylene in US tap water?

Of the 34,526 water suppliers with results on file, 286 detected cis-1,2-Dichloroethylene — 0.8% of those tested.