EPA TRI Facility · Electric Utilities
Otter Tail Power Co Big Stone Plant
Big Stone City, SD · Parent: Otter Tail Corp
- Total releases
- 2.2M lbs
- Chemicals reported
- 11
- Carcinogens
- 1
- Primary pathway
- Land Disposal
LAND Form-R mix
Otter Tail Power Co Big Stone Plant: how the 2.2M lbs splits
2.2M lbs across all reported pathways
- Land Disposal 2.1M lbs 96.2%
- Air Releases 84.5K lbs 3.8%
Otter Tail Power Co Big Stone Plant's 2.2M lbs Form-R total is LAND - land disposal is 96.2% of the bar. Next segment: air releases at 3.8%. Leading chemical by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
HEAVY volume LAND pathway TRACE-CARC
Otter Tail Power Co Big Stone Plant is an EPA Toxics Release Inventory reporter in Big Stone City, SD, in the electric utilities sector. It reported 369.4K lbs of releases across 9 chemicals in 2023, and 2.2M lbs in total across its 2019-2023 reporting years. That ranks 804 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In South Dakota's 92 reporting TRI sites, pounds #1 is not chemical-count #1. Otter Tail Power Co Big Stone Plant is pounds #4 and chemical-count #4 at 2.2M lbs. Smithfield Packaged Meats Corp - Sioux Falls leads reported pounds (21.3M lbs) at 4 chemicals (chemical-count #33). Hydro Extrusion USA LLC leads chemical count at 12 chemicals (223.2K lbs, pounds #13). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Poet Biorefining-Big Stone LLC; Valley Queen Cheese Factory Inc.; Woodland Cabinetry Inc; Tech Ord. Similar-scale Electric Utilities peers outside South Dakota: White Bluff Generating Plant; Golden Valley Electric Assoc Healy Power Plant; Aes Warrior Run Inc; Panther Creek Power Operating LLC. Other Otter Tail Corp sites in this extract: Otter Tail Power Co Coyote Station; Otter Tail Power Co Hoot Lake Plant; Btd Manufacturing Inc.; Btd Manufacturing Inc. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Manganese compounds; Ammonia; Vanadium compounds.
Otter Tail Power Co Big Stone Plant stamps HEAVY volume with a dominant LAND pathway (96.2% land disposal) across 11 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 2.2M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include White Bluff Generating Plant and Golden Valley Electric Assoc Healy Power Plant.
Otter Tail Power Co Big Stone Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2.2M lbs Top 3% higher than 97% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Otter Tail Power Co Big Stone Plant inside Grant's TRI pounds
Among the 513 Electric Utilities facilities in this database, Otter Tail Power Co Big Stone Plant reports the 140th-largest volume (2.2M lbs). This one site accounts for 92.2% of every pound reported in Grant. Its reported volume is concentrated rather than spread: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) alone is 89.1% of the total. Scale peers outside South Dakota include White Bluff Generating Plant and Golden Valley Electric Assoc Healy Power Plant.
County-dominant here means ≥25% of Grant's reported pounds (2.4M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Otter Tail Power Co Big Stone Plant's total reported releases fell from 459.6 thousand lb in 2022 to 369.4 thousand lb in 2023, based on EPA TRI filings.
- Otter Tail Power Co Big Stone Plant's land releases fell from 442.3 thousand lb in 2022 to 354.9 thousand lb in 2023, based on EPA TRI filings.
- Otter Tail Power Co Big Stone Plant's air releases fell from 17.3 thousand lb in 2022 to 14.5 thousand lb in 2023, based on EPA TRI filings.
- Otter Tail Power Co Big Stone Plant's chemicals reported fell from 10 in 2022 to 9 in 2023, based on EPA TRI filings.
Otter Tail Power Co Big Stone Plant Form-R facts
Compare this facility
See how Otter Tail Power Co Big Stone Plant stacks up against nearby facilities and the typical reporter.
25.5× more than the comparison
22% more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Otter Tail Power Co Big Stone Plant releases toxic chemicals into the environment. Total: 2.2M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 45% (672.8K lbs to 369.4K lbs).
Otter Tail Power Co Big Stone Plant: annual Form-R pounds
HEAVY site · LAND pathway · TRI years 2019–2023
- 2019
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Otter Tail Power Co Big Stone Plant year-over-year reported totals (decreased by 45% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 672.8K lbs | 11 |
| 2020 | 329.3K lbs | 9 |
| 2021 | 380.3K lbs | 9 |
| 2022 | 459.6K lbs | 10 |
| 2023 | 369.4K lbs | 9 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 11 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2.0M lbs | - |
| Manganese compounds | 85.5K lbs | - |
| Ammonia | 49.0K lbs | - |
| Vanadium compounds | 35.6K lbs | - |
| Copper compounds | 20.8K lbs | - |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 19.2K lbs | - |
| Lead compounds | 18.2K lbs | - |
| Hydrogen fluoride | 11.8K lbs | - |
| Mercury compounds | 587 lbs | - |
| Benzo[g,h,i]perylene | 0 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
Otter Tail Power Co Big Stone Plant · LAND-pathway site
Nearest TRI Facilities to Otter Tail Power Co Big Stone Plant
Closest other reporters in South Dakota - including Poet Biorefining-Big Stone LLC, Valley Queen Cheese Factory Inc., Woodland Cabinetry Inc, ordered by distance.
Showing 8 of 91 other reporting facilities in South Dakota.
Similar Electric Utilities Facilities
Other Electric Utilities facilities with similar total release volumes (±80%), outside South Dakota - e.g. White Bluff Generating Plant, Golden Valley Electric Assoc Healy Power Plant, Aes Warrior Run Inc.
Compare beyond South Dakota
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Otter Tail Power Co Big Stone Plant on cumulative reported pounds (2.2M lbs) and distinct chemical count (11). Release-pound peers include Ppg Industries Inc-Oak Creek, Ultra Yield Micronutrients, Westlake Polymers LLC. Chemical-count peers include Puerto Rico Energy LLC - Bayamon Terminal, Lanco Manufacturing Corp, Buckeye Caribbean Terminals LLC (former Scyi). Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Puerto Rico Energy LLC - Bayamon Terminal Bayamon, PR · Petroleum Bulk Terminals 11 chemicals
- Lanco Manufacturing Corp San Lorenzo, PR · Chemicals 11 chemicals
- Buckeye Caribbean Terminals LLC (former Scyi) Yabucoa, PR · Petroleum Bulk Terminals 11 chemicals
- Limetree Bay Terminals LLC DBA Ocean Point Terminals Christiansted, VI · Petroleum Bulk Terminals 11 chemicals
Other Otter Tail Corp Facilities
Same-parent TRI sites ranked by reported releases - including Otter Tail Power Co Coyote Station, Otter Tail Power Co Hoot Lake Plant, Btd Manufacturing Inc..
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Manganese compounds, Ammonia, Vanadium compounds; nearby reporters include Poet Biorefining-Big Stone LLC. Otter Tail Power Co Big Stone Plant stamps HEAVY volume · LAND pathway · TRACE-CARC carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Otter Tail Power Co Big Stone Plant TRI extract (HEAVY · LAND · TRACE-CARC · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7))) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Otter Tail Power Co Big Stone Plant totals are self-reported EPCRA §313 estimates for Big Stone City, SD, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 221112 · Electric Utilities. 92.2% of Grant TRI pounds in this extract. Nearest ABS peer: Ppg Industries Inc-Oak Creek (Δ 626 lbs). Pounds ≠ exposure.
Otter Tail Power Co Big Stone Plant stamps HEAVY volume · LAND pathway · TRACE-CARC · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7)). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov