St. Regis Paper Co.
This site is currently on the EPA Superfund National Priorities List and remains under federal cleanup oversight. Most-cited contaminant of concern: Pentachlorophenol.
2Nd Street South & Central Avenue, Cass Lake, Minnesota · ZIP 56633 · EPA ID MND057597940
Listing-date and cleanup-phase enrichment from EPA's per-site SEMS profile is queued for a follow-up ingest pass. Until then, this section will populate from EPA's published timeline data.
Notable Signals
No notable signals at this Superfund site for the current ingest. Cleanup-phase and SEMS-action flags are deferred to a follow-up engineering pass.
What's In This Site
Each row pairs a contaminant with the medium it was found in (the exposure pathway). Hover any named contaminant for an agency-cited health-risk summary. Cited count = number of SEMS decision records (RODs and related) that name the pair.
Groundwater Systems Serving Communities Within 3 Miles
The 8 systems below draw on groundwater (or mixed sources) and serve communities whose centroid sits within 3 miles of this site. Distance is to the served-city centroid — SDWIS does not expose individual wellhead locations, so this is a proximity screen, not a wellhead-impact assessment.
| Water system | Serves | Distance | Population served | Source | Status |
|---|---|---|---|---|---|
| Ball Club Tribal | Cass Lake | 0.4 mi | 333 | In compliance | |
| Bena Tribal | Cass Lake | 0.4 mi | 112 | In compliance | |
| Inger Tribal | Cass Lake | 0.4 mi | 186 | In compliance | |
| Plantation Tribal | Cass Lake | 0.4 mi | 105 | In compliance | |
| Oak Point Tribal | Cass Lake | 0.4 mi | 45 | In compliance | |
| Old Agency Tribal | Cass Lake | 0.4 mi | 30 | In compliance | |
| Northside Tribal | Cass Lake | 0.4 mi | 2,086 | In compliance | |
| Cass Lake Municipal | Cass Lake | 0.4 mi | 691 | In compliance |
Methodology: served-city centroid (TIGER 2020) is used as the PWS coordinate. Source-water classification from SDWIS primary_source_code; only groundwater and mixed-source systems are queried. Click any system above for its full SDWIS profile.
Who Lives Near This Site
Cass County, Minnesota (no Census block groups within 1 mile and no host city — falling back to containing county): a population of 30,288. Why we surface this →
Low-income
People of color
Under age 5
Over age 64
Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror). NPL site proximity contributes to the national EJ pattern; indicator-level percentile and disparity scores are surfaced on the county page and the state page.
Source. EPA Superfund Enterprise Management System (SEMS) · retrieved 2026-05-07. SEMS is a federal public-domain dataset under 17 USC §105.
What this is not. We report EPA's published Superfund record — site listing, status, and contaminants of concern as named in EPA's decision documents. We do not perform site visits, independent air or water sampling, or current-state health-risk assessment. NPL listing reflects EPA's Hazard Ranking Score at a point in time; it does not by itself describe present-day exposure.