County profile · EPA SDWIS + UCMR5
Lyon County, Kansas
12 SDWIS-listed public water systems serve 30,663 people in Lyon County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 12
- SDWIS water systems Middle third of counties
- 467
- Total violations Lower third of counties
- 100.0%
- SDWIS systems w/ a violation Middle third of counties
- 0.0%
- UCMR5 PFAS rate (1 tested) Lower third of counties with tests
SDWIS compliance plate
Sheet KS111 · Lyon County 12 sys · 467 viol · #1348/3254
VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-SW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-MID 25.3% health
- RANK-MID #1348/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-SW SW lead 100%
- SYS-SMALL 12 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Johnson County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Lyon County ranks #1,348 of 3,254 counties by people served, and #17 of 105 counties in Kansas. See methodology · corpus placement.
Lyon County standing, mid-flagged corpus third
Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 25.3% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,348 of 3,254 · #17 of 105 in Kansas.
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
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Emporia, City Of | 24,009 | 41 | Clean |
| Lyon Co RWD 1 | 1,595 | 76 | - |
| Lyon Co RWD 5 | 1,310 | 19 | - |
| Lyon Co RWD 4 | 980 | 22 | - |
| Lyon Co RWD 2 | 750 | 22 | - |
| Olpe, City Of | 513 | 6 | - |
| Lyon Co RWD 3 | 479 | 34 | - |
| Hartford, City Of | 356 | 78 | - |
| Park Place Communities Mgt LLC | 200 | 39 | - |
| Reading, City Of | 182 | 65 | - |
| Allen, City Of | 159 | 42 | - |
| Admire, City Of | 130 | 23 | - |
Compare beyond Kansas
Mid-flagged peers for Lyon County
Cross-state counties nearest Lyon County on flagged-system share (100.0%) and cumulative violation count (467). 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.