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Counties → Nevada

Lyon County, Nevada

SDWIS compliance plate

Sheet NV019 · Lyon County 30 sys · 4,095 viol · #943/3254

VIOL-SEVERE · HEALTH-LOW · RANK-UPPER · PHOTO-FINISH · PFAS-MID · SRC-GW · SYS-SMALL · BOOK-FULL

  • VIOL-SEVERE 93.3% flagged
  • HEALTH-LOW 5.6% health
  • RANK-UPPER #943/3254
  • PHOTO-FINISH ±0.2 pp
  • PFAS-MID 33.3% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 30 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Elko County ( -0.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Lyon County ranks #943 of 3,254 counties by people served, and #6 of 17 counties in Nevada. See methodology · corpus placement.

Lyon County standing, mid-flagged corpus third

Flagged-system rate 93.3% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.6% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 33.3% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #943 of 3,254 · #6 of 17 in Nevada.

Flagged-rate neighbourhood around Lyon County

Lowest/highest poles plus in-state counties nearest Lyon County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Esmeralda · lowest Eureka · near Lyon · this county Mineral · highest 83.3% 91% 92.9% 93.2% 93.3% 94.1% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Fernley Public Works 23,064 451 Detected
Dayton Valley Water System 16,000 4 Clean
Yerington City Of 5,050 966 Clean
Silver Springs Mutual Water Company 3,070 695 -
Stagecoach Gid 1,628 64 -
Smith Valley Baptist Church 500 0 -
Weed Heights Development 340 199 -
Smith Valley Schools 255 142 -
Fort Churchill Historic State Park 207 18 -
Pumpkin Hollow Shaft Site 200 173 -
Carmens Mexican Restaurant 190 50 -
Hodges Transportation Co 160 149 -
Walker River State Rec Area Pitchfork 100 3 -
Heyday Inn 80 89 -
Dayton Tap House LLC 50 218 -
Lahontan Dam State Park Beach 7 50 8 -
Snyder Livestock Company Inc 40 7 -
Wellington Station Resort 25 24 -
Buckboard Station 25 150 -
Rosies Place 25 74 -
Cg Bar 25 35 -
Lahontan Dam State Park Beach 3 25 21 -
Dressler Park 25 27 -
Stagecoach Country Market 25 43 -
East 50 Bar 25 259 -
Stagecoach Market 25 89 -
Walker River Resort 25 63 -
Silver Springs Meetinghouse Lds 25 3 -
8 Hoye Canyon 25 0 -
Churchill Butte Complex 25 71 -

Compare beyond Nevada

Mid-flagged peers for Lyon County

Cross-state counties nearest Lyon County on flagged-system share (93.3%) and cumulative violation count (4,095). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.