Mercury violations in Nevada
8 active public water systems in Nevada had a Mercury violation in the past three years. What Mercury is and why it matters.
Health effects: Chronic exposure to inorganic mercury in water primarily damages the kidneys. Neurological effects — tremors, memory loss, cognitive impairment — are more associated with organic mercury (methylmercury) than with the inorganic form regulated in drinking water. Developing fetuses and young children are most vulnerable.
Systems with a Mercury violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Town of Minden Douglas County |
3,500 | 5 | 0 | |
|
Topaz Ranch Estates Gid and Water CO Douglas County |
1,545 | 6 | 0 | |
|
Round Hill Gid Douglas County |
1,200 | 3 | 0 | |
|
Alamo Sewer and Water Gid Alamo · Lincoln County |
900 | 9 | 1 | |
|
Rancho Vista 3 Nye County |
50 | 7 | 0 | |
|
Rancho Vista 4 Nye County |
50 | 6 | 2 | |
|
Diamond Plastics Humboldt County |
38 | 5 | 0 | |
|
Yomba Indian Reservation Yomba Shoshone Tribe · County |
30 | 12 | 5 |
About this data
A system is counted once if any of its violations in the past three years involved Mercury, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Mercury 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 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.