Wyoming
Platte County drinking water quality
28 active public water systems serve 9,999 people in Platte County. 14 are compliant, 14 had at least one EPA violation in the past three years, 0 are designated serious violators, and 1 carries a health flag.
Needs attention
Community water systems
6 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wheatland, Town of Wheatland |
3,659 | 6 | 1 | |
|
Guernsey, Town of Guernsey |
1,157 | 2 | 0 | |
|
Glendo, Town of Glendo |
289 | 5 | 1 | |
|
Chugwater, Town of Chugwater |
200 | 1 | 0 | |
|
Y-O Investments, Inc. Wheatland |
173 | 0 | 0 | |
|
Hartville, Town of Hartville |
64 | 1 | 1 |
Non-community systems (22: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Arng-Camp Guernsey Cantonment Camp Guernsey |
2,000 | 7 | 0 | |
|
WY Dot-Dwyer Junction Rest Area Casper |
650 | 0 | 0 | |
|
Basin Electric Power Co-Op Wheatland |
310 | 0 | 0 | |
|
Arng-Guernsey Training Camp Guernsey |
302 | 2 | 0 | |
|
B&a Marina Glendo |
200 | 2 | 0 | |
|
Glendo ST Park Headquarters Glendo |
156 | 0 | 0 | |
|
Glendo Lakeside RV Park Glendo |
100 | 0 | 0 | |
|
Lds Wheatland Church Wheatland |
95 | 1 | 0 | |
|
Glendo ST Park-Reno Cove Glendo |
60 | 0 | 0 | |
|
Guernsey ST Park Headquarters Guernsey |
54 | 1 | 0 | |
|
EL Rancho Village RV Park & Cabins Wheatland |
52 | 2 | 0 | |
|
Glendo ST Park-Bennett Hill CG Glendo |
52 | 0 | 0 | |
|
Lake Water Co., Llc. Glendo |
51 | 0 | 0 | |
|
Glendo ST Park Cottonwood Glendo |
50 | 0 | 0 | |
|
Glendo ST Park Whiskey Gulch Glendo |
50 | 1 | 1 | |
|
Guernsey ST Park Long Canyon Guernsey |
50 | 0 | 0 | |
|
Guernsey ST Park Sandy Beach 1 Guernsey |
50 | 1 | 0 | |
|
Guernsey ST Park Sandy Point Guernsey |
50 | 0 | 0 | |
|
Larson's Park Guernsey |
45 | 0 | 0 | |
|
Guernsey ST Park East Side Guernsey |
30 | 1 | 0 | |
|
Guernsey ST Park Sewer Dump Guernsey |
25 | 0 | 0 | |
|
Guernsey ST Park-Fish Canyon CG Guernsey |
25 | 0 | 0 |
Inactive systems (15, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.