Water quality for ZIP code 89403
ZIP 89403 covers Dayton in Lyon County, Nevada, one of 6 ZIP codes in the county. 30 active public water systems serve the county; 16 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Lyon County
5 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Stagecoach Gid |
1,628 | 6 | 11.3 mi | |
| Silver Springs Mutual Water Company |
3,070 | 0 | 16.4 mi | |
| Weed Heights Development |
340 | 0 | 21.7 mi | |
| Yerington City of |
5,050 | 6 | 23.8 mi | |
| Fernley Public Works Fernley |
23,064 | 1 | 28.9 mi |
Non-community systems in Lyon County (24: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
East 50 Bar |
25 | 3 | 0 | |
|
Dayton Tap House LLC |
50 | 2 | 0 | |
|
Hodges Transportation CO |
160 | 0 | 0 | |
|
Stagecoach Market |
25 | 1 | 0 | |
|
Stagecoach Country Market |
25 | 1 | 0 | |
|
Fort Churchill Historic State Park |
207 | 0 | 0 | |
|
Silver Springs Meetinghouse Lds |
25 | 0 | 0 | |
|
Carmens Mexican Restaurant |
190 | 0 | 0 | |
|
Lahontan Dam State Park Beach 7 |
50 | 0 | 0 | |
|
Lahontan Dam State Park Beach 3 |
25 | 0 | 0 | |
|
Snyder Livestock Company INC |
40 | 0 | 0 | |
|
Walker River Resort |
25 | 0 | 0 | |
|
Smith Valley Schools |
255 | 2 | 0 | |
|
Buckboard Station |
25 | 2 | 0 | |
|
Pumpkin Hollow Shaft Site |
200 | 3 | 1 | |
|
Smith Valley Baptist Church |
500 | 0 | 0 | |
|
Rosies Place |
25 | 1 | 0 | |
|
Wellington Station Resort |
25 | 1 | 0 | |
|
CG Bar |
25 | 1 | 0 | |
|
8 Hoye Canyon |
25 | 1 | 0 | |
|
Walker River State Rec Area Pitchfork |
100 | 0 | 0 | |
|
Dressler Park |
25 | 0 | 0 | |
|
Heyday Inn |
80 | 1 | 0 | |
|
Churchill Butte Complex |
25 | 2 | 1 |
About this data
Water systems are matched to Lyon County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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 Nevada 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.