PlainWater

Dunn County, North Dakota

SDWIS compliance plate

Sheet ND025 · Dunn County 7 sys · 245 viol · #3115/3254

VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-SW · SYS-TINY · BOOK-MOST

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 11.4% health
  • RANK-BOTTOM #3115/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-SW SW lead 86%
  • SYS-TINY 7 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Dunn County ranks #3,115 of 3,254 counties by people served, and #37 of 52 counties in North Dakota. See methodology · corpus placement.

Dunn 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 11.4% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Dunn County . Population served ranks #3,115 of 3,254 · #37 of 52 in North Dakota.

Flagged-rate neighbourhood around Dunn County

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

0% 20% 40% 60% 80% 100% Morton · lowest Slope · highest Stark · near Richland · near 61.5% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Killdeer City Of 939 2 -
Halliday City Of 188 17 -
Dunn Center City Of 146 39 -
Dodge City Of 87 28 -
New Hradec Waterworks 60 81 -
Manning Water Board 55 43 -
Medicine Hole Golf Course 50 35 -

Compare beyond North Dakota

Mid-flagged peers for Dunn County

Cross-state counties nearest Dunn County on flagged-system share (100.0%) and cumulative violation count (245). 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.