Arsenic violations in Nevada
41 active public water systems in Nevada had a Arsenic violation in the past three years, 6 of them in the latest quarter of EPA's data. What Arsenic is and why it matters.
Systems with a Arsenic violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Lamoille Valley Plaza Elko County |
772 | 2 | 0 | |
|
Nevada Gold Mines Carlin Leeville Eureka County |
550 | 1 | 0 | |
|
Amargosa Elementary School Nye County |
200 | 1 | 0 | |
|
Springwood Equestrian Center Washoe County |
175 | 1 | 0 | |
|
Silver Knolls Mutual Water Company Washoe County |
120 | 2 | 1 | |
|
Sutcliffe Mobile Park Washoe County |
60 | 1 | 0 | |
|
Gardnerville Ranchos Gid Gardnerville Ranchos · Douglas County |
11,300 | 2 | 1 | |
|
Yerington City of Lyon County |
5,050 | 6 | 0 | |
|
Stagecoach Gid Lyon County |
1,628 | 6 | 0 | |
|
Topaz Ranch Estates Gid and Water CO Douglas County |
1,545 | 6 | 0 | |
|
Round Hill Gid Douglas County |
1,200 | 3 | 0 | |
|
Caliente Public Utilities Caliente · Lincoln County |
1,100 | 5 | 1 | |
|
Alamo Sewer and Water Gid Alamo · Lincoln County |
900 | 9 | 1 | |
|
Pioche Public Utilities Pioche · Lincoln County |
700 | 5 | 1 | |
|
Walker River Paiute Tribe Walker River · County |
662 | 10 | 2 | |
|
Hungry Valley (reno-Sparks) Hungry Valley · County |
620 | 3 | 0 | |
|
Yerington (campbell Ranch) Cambell Ranch · County |
512 | 5 | 0 | |
|
Moapa Paiute Travel Plaza Moapa Paiute Travel Plaza · County |
420 | 4 | 0 | |
|
Lander CO Sewer and Water Dist 2 Austin Austin · Lander County |
350 | 7 | 0 | |
|
Old River Water Company Churchill County |
300 | 7 | 0 | |
|
Acres Cultivation Nye County |
248 | 1 | 0 | |
|
Shoshone Estates Water CO INC Nye County |
240 | 2 | 0 | |
|
Speed Vegas Clark County |
235 | 2 | 0 | |
|
Front Sight Firearms Training Institute Nye County |
224 | 5 | 0 | |
|
Lamoille Water Users Assoc Lamoille · Elko County |
200 | 4 | 0 | |
|
Battle Mountain Battle Mountain · County |
195 | 7 | 3 | |
|
Lhoist North America Clark County |
136 | 1 | 0 | |
|
Equestrian Estates CO OP Water Assoc Clark County |
108 | 3 | 0 | |
|
Carson River Estates Churchill County |
105 | 11 | 0 | |
|
Luna Vista Clark County |
66 | 2 | 0 | |
|
Isabella Pearl Mine Mineral County |
65 | 2 | 0 | |
|
Roark Estates Water Assoc Clark County |
60 | 3 | 0 | |
|
Rancho Vista 3 Nye County |
50 | 7 | 0 | |
|
Rancho Vista 4 Nye County |
50 | 6 | 2 | |
|
First Sloan Industrial Water System Clark County |
40 | 2 | 1 | |
|
Mount Rose Bowl Property Owners Water CO Washoe County |
40 | 3 | 0 | |
|
South Fork (te-Moak) South Fork Band · County |
40 | 7 | 2 | |
|
Diamond Plastics Humboldt County |
38 | 5 | 0 | |
|
Anchor in MHP Nye County |
36 | 5 | 0 | |
|
Pinion Pines MHP Douglas County |
30 | 1 | 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 Arsenic, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Arsenic 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. Retrieved from ECHO on Oct 11, 2026.