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Contaminant guide

trans-1,2-Dichloroethylene in drinking water

The EPA limit for trans-1,2-Dichloroethylene in drinking water is 100 µg/L. Of the 34,525 water suppliers tested, 99 had it detected.

100 µg/L
EPA limit (MCL)
0.3%
of suppliers detected it
(99/34,525)

What the EPA limit means

⚖️

100 µg/L

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

🎯

100 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 trans-1,2-Dichloroethylene was found

The water suppliers reporting the highest levels, worst first. For lead and copper that is the 90th-percentile result the action level is written against; for Six-Year Review data, the 95th percentile of each system's samples.

SupplierCityStateLevel vs EPA limit
Erie City Water Authority Erie PA
48 µg/L 48%
of the EPA limit 100 µg/L
Nokomis Nokomis IL
18.6 µg/L 19%
of the EPA limit 100 µg/L
Valley County Water Dist. Baldwin Park CA
10.86 µg/L 11%
of the EPA limit 100 µg/L
Marell Courts and Rentals Llc Hillsboro WI
7.24 µg/L 7.2%
of the EPA limit 100 µg/L
California Domestic Water Company Whittier CA
6.48 µg/L 6.5%
of the EPA limit 100 µg/L
Hydro Pwa Hydro OK
5.65 µg/L 5.7%
of the EPA limit 100 µg/L
San Gabriel Valley Water Co.-El Monte El Monte CA
5.325 µg/L 5.3%
of the EPA limit 100 µg/L
Glendale-City, Water Dept. Glendale CA
5 µg/L 5%
of the EPA limit 100 µg/L
Bethpage Wd — —
4.6865 µg/L 4.7%
of the EPA limit 100 µg/L
Pasadena Water and Power Pasadena CA
3.648 µg/L 3.6%
of the EPA limit 100 µg/L
Whitehall Twp Authority Whitehall PA
2.85 µg/L 2.9%
of the EPA limit 100 µg/L
Highland Colony Holderness NH
2.04 µg/L 2%
of the EPA limit 100 µg/L
Arlington Arlington IL
1.8 µg/L 1.8%
of the EPA limit 100 µg/L
Montara Water and Sanitary District Montara CA
1.74 µg/L 1.7%
of the EPA limit 100 µg/L
Huber Heights Public Water System Huber Heights OH
1.68 µg/L 1.7%
of the EPA limit 100 µg/L
Crystal Lake Crystal Lake IL
1.653 µg/L 1.7%
of the EPA limit 100 µg/L
Pelican Utilities Pelican AK
1.6 µg/L 1.6%
of the EPA limit 100 µg/L
Paw Homesite — PA
1.4 µg/L 1.4%
of the EPA limit 100 µg/L
Suburban Water Systems-San Jose Covina CA
1.3 µg/L 1.3%
of the EPA limit 100 µg/L
Swan Lake Resort Galloway twp-0111 AZ
1.222 µg/L 1.2%
of the EPA limit 100 µg/L
Town of Hempstead Water Department Hempstead NY
1.2055 µg/L 1.2%
of the EPA limit 100 µg/L
Cedarburg L & W Commission Cedarburg WI
1.17 µg/L 1.2%
of the EPA limit 100 µg/L
Rockford Rockford IL
1.145 µg/L 1.1%
of the EPA limit 100 µg/L
Collingswood Water Depar Collingswood boro-0412 NJ
1.14 µg/L 1.1%
of the EPA limit 100 µg/L
Vint Hill Vint Hill VA
1 µg/L 1%
of the EPA limit 100 µg/L

Frequently asked questions about trans-1,2-Dichloroethylene

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

trans-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 trans-1,2-Dichloroethylene?

The EPA's Maximum Contaminant Level for trans-1,2-Dichloroethylene is 100 µg/L, and its health goal (MCLG) is 100 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 trans-1,2-Dichloroethylene in US tap water?

Of the 34,525 water suppliers with results on file, 99 detected trans-1,2-Dichloroethylene — 0.3% of those tested.