Mouat Industries
This site is currently on the EPA Superfund National Priorities List and remains under federal cleanup oversight.
Adjacent To Air Strip In Cy, Columbus, Montana · ZIP 59019 · EPA ID MTD021997689
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.
No Contaminants Of Concern In EPA's Published Record
EPA's SEMS database does not list contaminant-level findings for this site yet. This is common for sites still in early assessment or proposed status, and for some deleted sites where the published record was finalized before EPA's contaminant-tracking schema was added.
Groundwater Systems Serving Communities Within 3 Miles
The 3 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 |
|---|---|---|---|---|---|
| Columbus Town Of Municipal | Columbus | 0.2 mi | 1,900 | In compliance | |
| Sherwood Water Station Private | Columbus | 0.2 mi | 25 | UNRESOLVED | |
| Eagle Mountain Rural Pws Private | Columbus | 0.2 mi | 50 | 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
Within 1 mile of this site (1 Census block groups, population-weighted demographics): a population of 663. Why we surface this →
Low-income
People of color
Under age 5
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 1-mile buffer around this site (from USEPA-clone/EJAM-open blockgroupstats). 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.