County profile · EPA SDWIS + UCMR5
Lyon County, Nevada
30 SDWIS-listed public water systems serve 51,309 people in Lyon County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 30
- SDWIS water systems Middle third of counties
- 4,095
- Total violations Upper third of counties
- 93.3%
- SDWIS systems w/ a violation Middle third of counties
- 33.3%
- UCMR5 PFAS rate (3 tested) Middle third of counties with tests
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.
Water Systems
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.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.