Revised Total Coliform Rule (RTCR) violations in Wyoming
180 active public water systems in Wyoming had a Revised Total Coliform Rule (RTCR) violation in the past three years, 54 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
The Den Cheyenne · Laramie County |
50 | 3 | 0 | |
|
Wilson Hardware Wilson · Teton County |
45 | 2 | 0 | |
|
Devils Tower View Hulett · Crook County |
43 | 2 | 0 | |
|
Bhnf-Ranger Creek CG Sheridan · Big Horn County |
40 | 2 | 0 | |
|
Parkman Bar Parkman · Sheridan County |
40 | 2 | 1 | |
|
Targhee Nf-Trail Creek CG Teton County |
40 | 1 | 0 | |
|
YMCA of the Big Horns Camp Roberts Buffalo · Johnson County |
40 | 1 | 0 | |
|
Oakley Water, LLC Kemmerer · Lincoln County |
39 | 4 | 0 | |
|
Sunset Grill & River View Inn Alcova · Natrona County |
39 | 2 | 1 | |
|
Absaroka Ranch Dubois · Fremont County |
35 | 1 | 0 | |
|
Bhnf-Tie Hack CG Buffalo · Johnson County |
35 | 2 | 0 | |
|
Rendezvous Meadows Golf Course Pinedale · Sublette County |
35 | 1 | 0 | |
|
Devils Tower Gulch Devils Tower · Crook County |
34 | 1 | 0 | |
|
Ring Lake Ranch Dubois · Fremont County |
34 | 1 | 0 | |
|
Blackwater Creek Ranch Cody · Park County |
32 | 2 | 0 | |
|
All Seasons RV Park Campbell County |
31 | 1 | 0 | |
|
Kinnear Store Kinnear · Fremont County |
31 | 2 | 1 | |
|
Teton Science School-Wilson Campus Jackson · Teton County |
31 | 7 | 0 | |
|
Bighorn Nf-Tyrrell Work Center Sheridan · Big Horn County |
30 | 1 | 0 | |
|
Boulder Store/gas Station Boulder · Sublette County |
30 | 3 | 0 | |
|
Glenrock South Recreation Complex Glenrock · Converse County |
30 | 1 | 0 | |
|
Guernsey ST Park East Side Guernsey · Platte County |
30 | 1 | 0 | |
|
Flat Creek RV Park Thayne · Lincoln County |
28 | 2 | 1 | |
|
Green River Bar Sublette County |
28 | 2 | 0 | |
|
Sublette County Road and Bridge Pinedale · Sublette County |
26 | 1 | 0 | |
|
Blm Five Springs Campground Cody · Big Horn County |
25 | 1 | 0 | |
|
Camp Paintrock Hyattville · Big Horn County |
25 | 3 | 1 | |
|
Sinks Canyon State Pk-Popo Agie CG Lander · Fremont County |
25 | 1 | 0 | |
|
Bhnf-Burgess RS Sheridan · Sheridan County |
20 | 2 | 0 | |
|
Alcova Lakeview Estates II Casper · Natrona County |
9 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) 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.