PlainWater

Sumner County, Kansas

SDWIS compliance plate

Sheet KS191 · Sumner County 19 sys · 2,443 viol · #1616/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-HIGH 45.4% health
  • RANK-MID #1616/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 100.0% detect
  • SRC-GW GW lead 63%
  • SYS-SMALL 19 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, Sumner County ranks #1,616 of 3,254 counties by people served, and #23 of 105 counties in Kansas. See methodology · corpus placement.

Sumner 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 45.4% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 100.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,616 of 3,254 · #23 of 105 in Kansas.

Flagged-rate neighbourhood around Sumner County

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

0% 20% 40% 60% 80% 100% Chase · lowest Greeley · highest Wyandotte · near Leavenworth · near 85.7% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Wellington, City Of 7,664 152 Detected
Mulvane, City Of 6,587 41 Detected
Belle Plaine, City Of 1,468 159 -
Sumner Co RWD 5 1,429 239 -
Sumner Co RWD 4 1,157 81 -
Conway Springs, City Of 1,106 385 -
Oxford, City Of 1,048 11 -
Caldwell, City Of 1,019 4 -
Sumner Co RWD 2 490 242 -
Argonia, City Of 455 499 -
South Haven, City Of 325 46 -
Sumner Co RWD 6 298 8 -
Sumner Co RWD 1 280 15 -
Geuda Springs, City Of 151 56 -
Boudreux`s Burger Barn 125 163 -
Suppesville Fuel, LLC 100 66 -
Sumner Co RWD 3 80 113 -
Mayfield, City Of 74 60 -
Prairie Schooner Mobile Home Court 50 103 -

Compare beyond Kansas

Mid-flagged peers for Sumner County

Cross-state counties nearest Sumner County on flagged-system share (100.0%) and cumulative violation count (2,443). 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
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.