County profile · EPA SDWIS + UCMR5
Mahnomen County, Minnesota
18 SDWIS-listed public water systems serve 3,362 people in Mahnomen County. Violation rates use that full inventory; PFAS rates use only the UCMR5-tested subset.
- 18
- SDWIS water systems Middle third of counties
- 98
- Total violations Lower third of counties
- 22.2%
- SDWIS systems w/ a violation Lower third of counties
- -
- UCMR5 PFAS (none tested) No UCMR5 tests
SDWIS compliance plate
Sheet MN087 · Mahnomen County 18 sys · 98 viol · #2953/3254
VIOL-MID · HEALTH-LOW · RANK-BOTTOM · BELOW-PEER · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST
- VIOL-MID 22.2% flagged
- HEALTH-LOW 7.1% health
- RANK-BOTTOM #2953/3254
- BELOW-PEER 10.2 pp cleaner
- PFAS-NONE No UCMR5 set
- SRC-GW GW lead 100%
- SYS-SMALL 18 systems
- BOOK-MOST 6/7 fields
Nearest flagged-rate peer: Isanti County (+ 10.2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Mahnomen County ranks #2,953 of 3,254 counties by people served, and #85 of 87 counties in Minnesota. See methodology · corpus placement.
Mahnomen County standing, lower-flagged corpus third
Flagged-system rate 22.2% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 7.1% is health-based share at or below the lower third (≤ 10.3%) . No UCMR5 tests in this extract for Mahnomen County . Population served ranks #2,953 of 3,254 · #85 of 87 in Minnesota.
Flagged-rate neighbourhood around Mahnomen County
Lowest/highest poles plus in-state counties nearest Mahnomen County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Mahnomen | 1,210 | 10 | - |
| Subway | 500 | 0 | - |
| Waubun | 404 | 49 | - |
| Pinehurst Resort and Lodge | 260 | 0 | - |
| Elk Horn Resort and Camground | 200 | 0 | - |
| Farmers Union Oil Pump 24 | 120 | 0 | - |
| Circle's of Faith Church | 90 | 0 | - |
| Bejou | 76 | 32 | - |
| Burger Hut | 70 | 0 | - |
| Evergreen Acres Cooperative Assn. | 70 | 0 | - |
| St. Joseph's Catholic Church | 60 | 0 | - |
| Bones | 60 | 0 | - |
| New Horizon Resort and Lodge | 55 | 0 | - |
| Mahnomen Country Club | 50 | 0 | - |
| Riverview LLP-Waukon Dairy | 50 | 0 | - |
| Center of Human Environment | 37 | 0 | - |
| Mahnomen County Garage | 25 | 0 | - |
| E-Z One Stop | 25 | 7 | - |
Compare beyond Minnesota
Lower-flagged peers for Mahnomen County
Cross-state counties nearest Mahnomen County on flagged-system share (22.2%) and cumulative violation count (98). 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.