Tapcensus

Styrene violations in Wyoming

31 active public water systems in Wyoming had a Styrene violation in the past three years, 1 of them in the latest quarter of EPA's data. What Styrene is and why it matters.

Health effects: Chronic exposure to styrene is associated with liver, kidney, and nervous system effects. EPA classifies it as a possible human carcinogen (Group C) based on limited animal evidence. Short-term exposure can cause irritation of the eyes, nose, and throat. Long-term exposure above the MCL is the primary concern for public water system violations.

Systems with a Styrene violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Broken Wheel Truck Stop
Douglas · Converse County
540 6 2
Jackson, Town of
Jackson · Teton County
24,760 5 1
Rawlins Water Supply, City of
Rawlins · Carbon County
9,006 6 1
Ynp Lake Village
Yellowstone Nt · Teton County
5,925 5 1
Wheatland, Town of
Wheatland · Platte County
3,659 6 1
Newcastle, City of
Newcastle · Weston County
3,595 4 0
Pinedale Municipal WS
Pinedale · Sublette County
2,005 1 0
Arng-Camp Guernsey Cantonment
Camp Guernsey · Platte County
2,000 7 0
Leisure Valley Inc/ Star Valley RV Park
Thayne · Lincoln County
1,897 6 1
Saratoga, Town of
Saratoga · Carbon County
1,720 6 0
Lusk, Town of
Lusk · Niobrara County
1,576 4 0
Marbleton, Town of
Marbleton · Sublette County
861 7 1
Veterans Administration Medical Center
Sheridan · Sheridan County
802 5 1
Cokeville, Town of
Cokeville · Lincoln County
535 9 0
Pub Place
Jackson · Teton County
497 6 0
Lingle, Town of
Lingle · Goshen County
486 5 0
Rolling Hills, Town of
Rolling Hills · Converse County
450 3 0
LA Grange, Town of
La Grange · Goshen County
448 4 0
West End Water District
Newcastle · Weston County
225 6 1
Gtnp--Moose/beaver Creek
Moose · Teton County
221 1 0
North Alpine I&s District
Alpine · Lincoln County
200 9 0
Mountain View Acres
Riverton · Fremont County
165 8 0
Water Unlimited, Incorporated
Newcastle · Weston County
144 7 2
Stone Creek HOA
Torrington · Goshen County
100 9 1
Farview Water and Sewer District
Riverton · Fremont County
60 5 1
Ur-Energy Usa, Lost Creek Isr
Casper · Sweetwater County
60 2 0
Mountain Village Parks
Big Piney · Sublette County
53 10 5
Evergreen Mobile Home Park
Cheyenne · Laramie County
35 10 2
Teton Science School-Wilson Campus
Jackson · Teton County
31 7 0
Broken Wrench LLC
Casper · Natrona County
30 6 0
Hagens Estates
Gillette · Campbell County
29 9 0
About this data

A system is counted once if any of its violations in the past three years involved Styrene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Styrene alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Wyoming records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.