Ontonagon County, Michigan
SDWIS compliance plate
Sheet MI131 · Ontonagon County 26 sys · 768 viol · #2757/3254
VIOL-SEVERE · HEALTH-LOW · RANK-BOTTOM · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-SMALL · BOOK-FULL
- VIOL-SEVERE 96.2% flagged
- HEALTH-LOW 17.3% health
- RANK-BOTTOM #2757/3254
- PHOTO-FINISH ±0.2 pp
- PFAS-CLEAN 0.0% detect
- SRC-GW GW lead 96%
- SYS-SMALL 26 systems
- BOOK-FULL 7/7 fields
Nearest flagged-rate peer: Monroe County (+ 0.2 pp flagged-rate)
According to EPA SDWIS county population served used on /counties, Ontonagon County ranks #2,757 of 3,254 counties by people served, and #82 of 83 counties in Michigan. See methodology · corpus placement.
Ontonagon County standing, mid-flagged corpus third
Flagged-system rate 96.2% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 17.3% 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 #2,757 of 3,254 · #82 of 83 in Michigan.
Flagged-rate neighbourhood around Ontonagon County
Lowest/highest poles plus in-state counties nearest Ontonagon County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.
Water Systems
| System Name | Population | Violations | PFAS |
|---|---|---|---|
| Ontonagon | 2,607 | 62 | Clean |
| McMillan Township | 391 | 56 | - |
| Rockland Township | 350 | 58 | - |
| Bergland Township | 210 | 30 | - |
| Interior Township | 200 | 122 | - |
| North Coast Adventures Campground | 180 | 0 | - |
| Settlers Cooperative | 150 | 12 | - |
| Stannard Township Hall | 127 | 10 | - |
| Ontonagon County Park | 120 | 30 | - |
| Tige's Bar | 100 | 17 | - |
| Char's Cafe | 100 | 19 | - |
| Da Yooper Way | 80 | 20 | - |
| Mdot - Ewen Pines Wayside, P152 | 75 | 20 | - |
| J&h Logger's Alley | 75 | 24 | - |
| Dollar General #19570 - Bruce Crossing | 75 | 2 | - |
| Pit Stop Bar & Grill | 70 | 48 | - |
| Miller's Cottages | 60 | 11 | - |
| Rousseau Bar | 60 | 25 | - |
| Hoop & Holler Tavern | 50 | 18 | - |
| Ajs Lodge & Oven | 50 | 85 | - |
| Mass City Bp | 50 | 30 | - |
| St. Paul's Lutheran Church - Mass City | 50 | 10 | - |
| Mdot - Military Hill Wayside, P150 | 30 | 18 | - |
| Greenland Twp Community Center | 30 | 30 | - |
| Paulding General Store | 30 | 7 | - |
| Mdot - Agate Falls Wayside, P153 | 25 | 4 | - |
Compare beyond Michigan
Mid-flagged peers for Ontonagon County
Cross-state counties nearest Ontonagon County on flagged-system share (96.2%) and cumulative violation count (768). 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. 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.