Jefferson County, Kansas
SDWIS compliance plate
Sheet KS087 · Jefferson County 18 sys · 1,089 viol · #1767/3254
VIOL-SEVERE · HEALTH-MID · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 100.0% flagged
- HEALTH-MID 36.5% health
- RANK-MID #1767/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 83%
- SYS-SMALL 18 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, Jefferson County ranks #1,767 of 3,254 counties by people served, and #27 of 105 counties in Kansas. See methodology · corpus placement.
Jefferson 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 36.5% 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 #1,767 of 3,254 · #27 of 105 in Kansas.
Flagged-rate neighbourhood around Jefferson County
Lowest/highest poles plus in-state counties nearest Jefferson County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Jefferson Co RWD 12 | 3,635 | 7 | Clean |
| Jefferson Co RWD 3 | 2,435 | 77 | - |
| Jefferson Co RWD 1 | 2,343 | 102 | - |
| Jefferson Co RWD 13 | 2,115 | 24 | - |
| Jefferson Co RWD 7 | 1,180 | 28 | - |
| Valley Falls, City Of | 1,086 | 156 | - |
| Oskaloosa, City Of | 1,086 | 70 | - |
| McLouth, City Of | 858 | 29 | - |
| Perry, City Of | 858 | 25 | Clean |
| Jefferson Co RWD 2 | 642 | 72 | - |
| Ozawkie, City Of | 636 | 30 | - |
| Nortonville, City Of | 599 | 15 | - |
| Jefferson Co RWD 15 | 563 | 264 | - |
| Jefferson Co RWD 11 | 483 | 30 | - |
| Winchester, City Of | 450 | 23 | - |
| Jefferson Co RWD 9 | 352 | 22 | - |
| Lakeside Village Improvement Dist | 343 | 70 | - |
| Jefferson Co RWD 10 | 300 | 45 | - |
Compare beyond Kansas
Mid-flagged peers for Jefferson County
Cross-state counties nearest Jefferson County on flagged-system share (100.0%) and cumulative violation count (1,089). 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. 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.