PlainWater

Marshall County, Minnesota

SDWIS compliance plate

Sheet MN089 · Marshall County 17 sys · 264 viol · #2525/3254

VIOL-SEVERE · HEALTH-MID · RANK-LOWER · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 82.4% flagged
  • HEALTH-MID 21.2% health
  • RANK-LOWER #2525/3254
  • PHOTO-FINISH ±1.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-SMALL 17 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: Pipestone County (+ 1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Marshall County ranks #2,525 of 3,254 counties by people served, and #70 of 87 counties in Minnesota. See methodology · corpus placement.

Marshall County standing, lower-flagged corpus third

Flagged-system rate 82.4% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 21.2% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Marshall County . Population served ranks #2,525 of 3,254 · #70 of 87 in Minnesota.

Flagged-rate neighbourhood around Marshall County

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

0% 20% 40% 60% 80% 100% Mahnomen · lowest Marshall · this county Jackson · near Watonwan · highest 22.2% 78.3% 82.4% 83.3% 84.6% 85% 100%

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

Water Systems

System Name Population Violations PFAS
Marshall-Polk Rural Water System 3,295 15 -
Warren 1,551 37 -
Stephen 568 24 -
Argyle 533 16 -
Alvarado 377 6 -
Newfolden 358 10 -
Middle River 299 19 -
Oslo 242 13 -
Grygla 179 22 -
Silver Creek Lutheran Church 100 7 -
The Venue at Copper Ridge 100 0 -
Viking 85 22 -
Holt 84 16 -
Strandquist 63 51 -
United Lutheran Church 50 0 -
Old Mill State Park 50 0 -
Our Saviors Lutheran Church 25 6 -

Compare beyond Minnesota

Lower-flagged peers for Marshall County

Cross-state counties nearest Marshall County on flagged-system share (82.4%) and cumulative violation count (264). 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.