Water quality in Midwest, Wyoming
Midwest is in Natrona County. 49 active public water systems serve the county; 32 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Natrona County
24 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Edgerton, Town of Edgerton |
195 | 1 | 1.6 mi | |
| Thirty-Three Mile Road I&s District Mills |
100 | 2 | 35.0 mi | |
| Bar Nunn, Town of Mills |
4,000 | 0 | 35.6 mi | |
| Natrona County Int'l Airport Casper |
423 | 3 | 36.3 mi | |
| Sandy Lake Estates I&s District Casper |
450 | 1 | 36.5 mi | |
| Air Base Acres I&s District Mills |
236 | 1 | 37.0 mi | |
| Evansville, Town of Evansville |
2,873 | 1 | 38.0 mi | |
| Vista West Water Company Casper |
1,600 | 1 | 38.0 mi | |
| South Riverside Acres Wtr Impr Dist Evansville |
125 | 2 | 38.8 mi | |
| Mile-Hi I&s District |
120 | 0 | 38.9 mi | |
| Countryside Court Mills |
125 | 4 | 39.0 mi | |
| Lakeview I&s District Mills |
62 | 1 | 39.1 mi | |
| Mills, City of Mills |
4,050 | 1 | 39.1 mi | |
| Terrace I MHC Casper |
336 | 1 | 39.1 mi | |
| Hidden Hills MHP Casper |
324 | 0 | 39.1 mi | |
| Terrace II MHC Casper |
320 | 0 | 39.1 mi | |
| Green Valley MHP Casper |
265 | 0 | 39.1 mi | |
| Central WY Regional Water System Jpb Casper |
25 | 0 | 39.1 mi | |
| Pioneer Water & Sewer District Mills |
1,500 | 3 | 39.2 mi | |
| Casper, City of Casper |
59,000 | 0 | 39.9 mi | |
| Pleasant View Water Company Mills |
130 | 0 | 40.2 mi | |
| Poison Spider I&s District Mills |
200 | 0 | 43.7 mi | |
| Broken Wrench LLC Casper |
30 | 6 | 43.7 mi | |
| Riverside Mobile Home Court Casper |
140 | 2 | 330.3 mi |
Non-community systems in Natrona County (24: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Blm Lodgepole Campground Casper |
25 | 0 | 0 | |
|
Ekw State Park-Cottonwood Evansville |
25 | 1 | 0 | |
|
Ekw State Park-Platte River RA Evansville |
25 | 1 | 0 | |
|
Lord of Lords Lutheran Church Casper |
70 | 0 | 0 | |
|
Mills Spring Ranch Casper |
200 | 0 | 0 | |
|
Hogadon Ski Area Casper |
504 | 1 | 0 | |
|
Natrona County Parks-Trails Center Mills |
30 | 2 | 1 | |
|
Camp Wyoba and Lions Club Casper |
105 | 3 | 1 | |
|
Mountain Top Baptist Assembly Casper |
150 | 1 | 1 | |
|
Camp Sacajawea Casper |
79 | 2 | 0 | |
|
WY Trans Dept Waltman RA Powder River |
300 | 1 | 0 | |
|
Sunset Grill & River View Inn Alcova |
39 | 2 | 1 | |
|
Sloanes General Store Alcova |
90 | 1 | 1 | |
|
Alcova Dam RV Park |
30 | 2 | 2 | |
|
Eagle Creek RV Park Alcova |
33 | 1 | 1 | |
|
Alcova Resort Alcova |
1,165 | 0 | 0 | |
|
Alcova Lakeview Estates I Casper |
48 | 1 | 0 | |
|
Alcova Lakeview Estates II Casper |
9 | 3 | 0 | |
|
Alcova Lake Park Trailer Village Mills |
800 | 2 | 0 | |
|
WY Dot-Independence RA Casper |
350 | 1 | 0 | |
|
Mhvc Visitors Center Alcova |
612 | 0 | 0 | |
|
Mhvc Cherry Creek CG Alcova |
202 | 0 | 0 | |
|
Mhvc Jackson CG Alcova |
50 | 0 | 0 | |
|
Mhvc 66 Ranch Alcova |
96 | 1 | 0 |
About this data
Water systems are matched to Natrona County, nearest to Midwest first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
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.