Nevada
Humboldt County drinking water quality
28 active public water systems serve 15,249 people in Humboldt County. 14 are compliant, 14 had at least one EPA violation in the past three years, 3 are designated serious violators, and 2 carry a health flag.
Needs attention
Community water systems
7 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Winnemucca City of Winnemucca |
8,518 | 1 | 0 | |
|
Gold Country Estates |
1,695 | 2 | 0 | |
|
Star City Properties |
285 | 1 | 0 | |
|
Golconda Gid Golconda |
210 | 0 | 0 | |
|
McDermitt Water System Mcdermitt |
200 | 0 | 0 | |
|
Orovada Water District Orovada |
200 | 0 | 0 | |
|
Valmy Station Mobile Home Park |
96 | 3 | 0 |
Non-community systems (21: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Pilot Travel Center 485 |
1,448 | 1 | 0 | |
|
Nevada Gold Mines Twin Creeks |
600 | 0 | 0 | |
|
Nevada Gold Mines Turquoise Ridge |
480 | 0 | 0 | |
|
Marigold Mine Potable Water System |
450 | 0 | 0 | |
|
Ndot Valmy Roadside Park Rp809hu |
367 | 0 | 0 | |
|
Hycroft Resources & Development LLC |
90 | 2 | 0 | |
|
Community Hall Paradise Valley |
72 | 0 | 0 | |
|
P and L Denio Junction RV Park |
65 | 5 | 4 | |
|
North Valmy Power Plant |
60 | 0 | 0 | |
|
Royal Peacock RV Park |
53 | 0 | 0 | |
|
Css Farms LLC |
50 | 0 | 0 | |
|
Valmy Chevron |
45 | 3 | 0 | |
|
Paradise Valley Park |
40 | 2 | 0 | |
|
Diamond Plastics |
38 | 5 | 0 | |
|
Paradise Valley Elementary |
35 | 5 | 3 | |
|
Kings River Elementary School |
27 | 2 | 0 | |
|
A1 Fuel Stop |
25 | 0 | 0 | |
|
Denio Junction Denio Junction |
25 | 0 | 0 | |
|
Lone Tree Mine |
25 | 0 | 0 | |
|
Lye Creek Campground Usfs |
25 | 1 | 0 | |
|
Virgin Valley Campground Fws |
25 | 1 | 0 |
Inactive systems (38, 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 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.