Morton, ND
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Morton in North Dakota · Population: 33,479
TRI sites such as Marathon Mandan Refinery; Rm Heskett Station; Hebron Brick Co; SDWIS systems such as MANDAN CITY OF; MISSOURI WEST WATER SYSTEM; RUGBY CITY OF anchor Morton, ND's EPA extract. Derived burden score 31/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Morton include SOLEN, CITY OF, while Marathon Mandan Refinery leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 31/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Morton -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Morton, ND: EPA TRI 2023 reporting year
Same facilities, both years
-9.9%
2 facilities that filed in 2022 and 2023
Whole inventory
-17.7%
513.0 thousand lb → 422.2 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Morton, ND's total reported releases fell from 468.5 thousand lb in 2022 to 422.2 thousand lb in 2023, based on EPA TRI filings.
- Morton, ND's air releases fell from 453.3 thousand lb in 2022 to 406.2 thousand lb in 2023, based on EPA TRI filings.
- Morton, ND's water releases rose from 5.1 thousand lb in 2022 to 5.6 thousand lb in 2023, based on EPA TRI filings.
- Morton, ND's off-site transfers rose from 8.5 thousand lb in 2022 to 8.8 thousand lb in 2023, based on EPA TRI filings.
Water Systems (12)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| MANDAN CITY OF | 21,769 | 0 |
| MISSOURI WEST WATER SYSTEM | 4,303 | 0 |
| RUGBY CITY OF | 2,876 | 0 |
| NEW SALEM CITY OF | 946 | 0 |
| GLEN ULLIN CITY OF | 807 | 0 |
| HEBRON CITY OF | 747 | 0 |
| CROWN BUTTE COOP | 320 | 0 |
| FLASHER CITY OF | 232 | 0 |
| RIVERVIEW HEIGHTS | 200 | 0 |
| COUNTRY CLUB CO-OP | 162 | 0 |
| ALMONT CITY OF | 122 | 0 |
| SOLEN, CITY OF | 83 | 2 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Marathon Mandan Refinery | 1.9M lbs |
| 2 | Rm Heskett Station | 1.1M lbs |
| 3 | Hebron Brick Co | 217.6K lbs |
Cities in Morton (8)
Frequently Asked Questions
What is the environmental risk level in Morton, North Dakota? ▼
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How many toxic release facilities are in Morton? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.