Groundwater Rule (GWR) violations in Wyoming
31 active public water systems in Wyoming had a Groundwater Rule (GWR) violation in the past three years, 30 of them in the latest quarter of EPA's data. What Groundwater Rule (GWR) is and why it matters.
Systems with a Groundwater Rule (GWR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wheatland, Town of Wheatland · Platte County |
3,659 | 6 | 1 | |
|
Star Valley Ranch, Town of Star Valley Ranch, Thayne · Lincoln County |
2,894 | 3 | 1 | |
|
Marbleton, Town of Marbleton · Sublette County |
861 | 7 | 1 | |
|
Brush Creek Ranch Saratoga · Carbon County |
717 | 2 | 1 | |
|
Wamsutter, Town of Wamsutter · Sweetwater County |
500 | 1 | 1 | |
|
Big Piney, Town of Big Piney · Sublette County |
445 | 1 | 1 | |
|
Osmond I&s District Afton · Lincoln County |
315 | 1 | 1 | |
|
Gardens North Homeowners Association Riverton · Fremont County |
300 | 2 | 2 | |
|
Union Pacific Railroad Bill · Converse County |
250 | 1 | 1 | |
|
Pavillion, Town of Pavillion · Fremont County |
230 | 2 | 1 | |
|
Sunridge Estates Riverton · Fremont County |
220 | 3 | 2 | |
|
Akal Travel Center Laramie · Albany County |
202 | 2 | 1 | |
|
Albin, Town of Albin · Laramie County |
181 | 9 | 5 | |
|
Fireside Resort Incorporated Teton Village · Teton County |
170 | 2 | 1 | |
|
South End Water Users S&i District Lovell · Big Horn County |
150 | 3 | 3 | |
|
White Pine Resort Pinedale · Sublette County |
110 | 3 | 1 | |
|
Arrowhead Wyoming LLC Dayton · Sheridan County |
100 | 3 | 1 | |
|
Point of Rocks Mercantile Point Of Rocks · Sweetwater County |
78 | 1 | 1 | |
|
South Fork Mountain Lodge Buffalo · Johnson County |
76 | 3 | 1 | |
|
Walcott Service Walcott · Carbon County |
75 | 2 | 1 | |
|
Woods Landing Resort Woods Landing · Albany County |
60 | 3 | 1 | |
|
Lance Creek Water District Lance Creek · Niobrara County |
55 | 5 | 2 | |
|
Mountain Village Parks Big Piney · Sublette County |
53 | 10 | 5 | |
|
Beulah Land Water Beulah · Crook County |
50 | 4 | 2 | |
|
Paintbrush Motel Riverton · Fremont County |
40 | 1 | 1 | |
|
J & E Infanger, Inc. Jackson · Teton County |
36 | 2 | 1 | |
|
Big Valley & Crossed Arrows Imp Dist Meeteetse · Park County |
35 | 4 | 2 | |
|
Flat Creek RV Park Thayne · Lincoln County |
28 | 2 | 1 | |
|
Broken Wheel Ranch Association Alpine · Lincoln County |
27 | 1 | 1 | |
|
Camp Paintrock Hyattville · Big Horn County |
25 | 3 | 1 | |
|
Hilliard Ward (lds Church) Evanston · Uinta County |
45 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Groundwater Rule (GWR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Groundwater Rule (GWR) 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.