PlainWater

Dunklin County, Missouri

SDWIS compliance plate

Sheet MO069 · Dunklin County 13 sys · 1,384 viol · #1202/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 18.4% health
  • RANK-UPPER #1202/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-LOW 20.0% detect
  • SRC-GW GW lead 100%
  • SYS-SMALL 13 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Cass County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Dunklin County ranks #1,202 of 3,254 counties by people served, and #26 of 115 counties in Missouri. See methodology · corpus placement.

Dunklin 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 18.4% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 20.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #1,202 of 3,254 · #26 of 115 in Missouri.

Flagged-rate neighbourhood around Dunklin County

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

0% 20% 40% 60% 80% 100% Shannon · lowest Mercer · highest Jackson · near Boone · near 69.6% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Kennett PWS 10,500 190 Detected
Pemiscot County Con PWSD 1 6,042 32 Clean
Dunklin County PWSD 1 4,307 57 Clean
Malden PWS 3,706 69 Clean
Dunklin County PWSD 2 2,900 43 -
Senath PWS 1,767 87 -
Campbell PWS 1,562 52 Clean
Dunklin County PWSD 3 South 1,562 27 -
Clarkton PWS 1,124 145 -
Holcomb PWS 635 59 -
Cardwell PWS 533 152 -
Hornersville PWS 526 390 -
Arbyrd PWS 490 81 -

Compare beyond Missouri

Mid-flagged peers for Dunklin County

Cross-state counties nearest Dunklin County on flagged-system share (100.0%) and cumulative violation count (1,384). 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.