PlainWater

Rock County, Minnesota

SDWIS compliance plate

Sheet MN133 · Rock County 8 sys · 119 viol · #2399/3254

VIOL-SEVERE · HEALTH-LOW · RANK-LOWER · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-TINY · BOOK-FULL

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-LOW 0.0% health
  • RANK-LOWER #2399/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 75%
  • SYS-TINY 8 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Rock County ranks #2,399 of 3,254 counties by people served, and #62 of 87 counties in Minnesota. See methodology · corpus placement.

Rock 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 0.0% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #2,399 of 3,254 · #62 of 87 in Minnesota.

Flagged-rate neighbourhood around Rock County

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

0% 20% 40% 60% 80% 100% Mahnomen · lowest Rock · this county Nobles · near 22.2% 92.3% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Luverne 4,946 20 Clean
Rock County Rural Water System 2,919 22 -
Hills 685 4 -
Beaver Creek 297 5 -
Magnolia 214 22 -
Hardwick 198 9 -
Steen 180 19 -
Kenneth 56 18 -

Compare beyond Minnesota

Mid-flagged peers for Rock County

Cross-state counties nearest Rock County on flagged-system share (100.0%) and cumulative violation count (119). 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.