PlainWater

Malheur County, Oregon

SDWIS compliance plate

Sheet OR045 · Malheur County 25 sys · 4,518 viol · #1670/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 24.3% health
  • RANK-MID #1670/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 96%
  • SYS-SMALL 25 systems
  • BOOK-FULL 7/7 fields

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

According to EPA SDWIS county population served used on /counties, Malheur County ranks #1,670 of 3,254 counties by people served, and #24 of 36 counties in Oregon. See methodology · corpus placement.

Malheur 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 24.3% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,670 of 3,254 · #24 of 36 in Oregon.

Flagged-rate neighbourhood around Malheur County

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

0% 20% 40% 60% 80% 100% Polk · lowest Wheeler · highest Benton · near Coos · near 86.2% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Ontario, City Of 14,465 150 Clean
Nyssa, City Of 3,285 194 -
Vale, City Of 1,837 339 -
Huntington Travel Plaza 999 134 -
Fry Foods 280 51 -
Oprd McCormack Cg 250 52 -
Jordan Valley, City Of 175 111 -
Adrian, City Of 159 445 -
Fischers Place MHP 130 353 -
Harper High/Elementary SD 66 117 44 -
Oprd Indian Creek Cg 100 22 -
Willowcreek Elem SD #84 80 77 -
US Silica 69 21 -
Golf MHP 60 954 -
Rome Station 60 51 -
Oasis Cafe & Motel RV 55 173 -
Annex Charter School 50 160 -
Willowcreek Store & Cafe 50 73 -
Bates Motel & Deli 50 28 -
Oasis on the Snake 50 74 -
River Village MHP 40 750 -
Odot Stanton Blvd Facility 30 88 -
Country Campground 25 61 -
Winners Horseshoe - Annex 25 36 -
Spur 95 25 77 -

Compare beyond Oregon

Mid-flagged peers for Malheur County

Cross-state counties nearest Malheur County on flagged-system share (100.0%) and cumulative violation count (4,518). 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.