County profile · EPA SDWIS + UCMR5
Sherman County, Oregon
12 SDWIS-listed public water systems serve 3,709 people in Sherman County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 12
- SDWIS water systems Middle third of counties
- 849
- Total violations Middle third of counties
- 100.0%
- SDWIS systems w/ a violation Middle third of counties
- -
- UCMR5 PFAS (none tested) No UCMR5 tests
SDWIS compliance plate
Sheet OR055 · Sherman County 12 sys · 849 viol · #2922/3254
VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST
- VIOL-SEVERE 100.0% flagged
- HEALTH-LOW 11.7% health
- RANK-BOTTOM #2922/3254
- PHOTO-FINISH ±0.0 pp
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 100%
- SYS-SMALL 12 systems
- BOOK-MOST 6/7 fields
Nearest flagged-rate peer: Multnomah County (+ 0 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Sherman County ranks #2,922 of 3,254 counties by people served, and #34 of 36 counties in Oregon. See methodology · corpus placement.
Sherman 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 11.7% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Sherman County . Population served ranks #2,922 of 3,254 · #34 of 36 in Oregon.
Flagged-rate neighbourhood around Sherman County
Lowest/highest poles plus in-state counties nearest Sherman County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Biggs Service District | 1,600 | 1 | - |
| Wasco, City Of | 460 | 160 | - |
| Moro, City Of | 350 | 195 | - |
| Rufus Public Works | 270 | 24 | - |
| Sherman County School | 240 | 97 | - |
| Oprd Deschutes River Rec Area | 200 | 33 | - |
| Grass Valley Water System | 184 | 139 | - |
| Usace Le Page Park | 150 | 40 | - |
| Usace John Day Dam | 120 | 105 | - |
| Blm Beavertail Rec North Well | 75 | 41 | - |
| Pge Biglow Canyon | 30 | 13 | - |
| Oprd Cottonwood Canyon St Pk | 30 | 1 | - |
Compare beyond Oregon
Mid-flagged peers for Sherman County
Cross-state counties nearest Sherman County on flagged-system share (100.0%) and cumulative violation count (849). 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.
Similar violation load
Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).
Read our methodology · Check your water system - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.