Indian River Generating Station – Emissions Trend
Dagsboro, DE · 2019–2024 · Parent: Nrg Energy Inc
This page assembles 6 consecutive years of EPA Toxics Release Inventory Form R filings for Indian River Generating Station, spanning 2019–2024. Each annual total aggregates on-site air emissions, surface-water discharges, land disposal, and off-site transfers reported by the facility under EPCRA Section 313, which requires disclosure whenever a listed chemical is manufactured, processed, or otherwise used above threshold quantities.
Reported releases opened at 3.5K in 2019 and closed at 26.6K in 2024 – a increase of 663.3% over the window. The chart below stacks the four TRI release media (air, water, land, off-site) and overlays the yearly total. The top contributor by cumulative mass is Ammonia at 30.5K, followed by Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) at 9.8K.
Because TRI figures are estimated, not metered, year-over-year deltas can reflect methodology revisions, ownership changes, or shifts in what a facility classifies as reportable, not only physical emission changes. Treat the trajectory as a disclosure record, and cross-reference with the EPA Enforcement and Compliance History Online (ECHO) system for the fuller regulatory picture on this electric utilities facility.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Indian River Generating Station's total reported releases fell from 1.9 thousand lb in 2022 to 100 lb in 2023, based on EPA TRI filings.
- Indian River Generating Station's air releases fell from 1.7 thousand lb in 2022 to 54 lb in 2023, based on EPA TRI filings.
- Indian River Generating Station's land releases fell from 252 lb in 2022 to 46 lb in 2023, based on EPA TRI filings.
- Indian River Generating Station's chemicals reported fell from 5 in 2022 to 2 in 2023, based on EPA TRI filings.
Total Releases by Category
Year-over-Year Comparison
| Year | Total | Chemicals | YoY Change |
|---|---|---|---|
| 2019 | 3.5K lbs | 5 | - |
| 2020 | 3.2K lbs | 5 | -8.5% |
| 2021 | 11.0K lbs | 6 | +245.6% |
| 2022 | 1.9K lbs | 5 | -82.4% |
| 2023 | 100 lbs | 2 | -94.8% |
| 2024 | 26.6K lbs | 6 | +26432.6% |
Top Chemicals by Year
| Chemical | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | Total |
|---|---|---|---|---|---|---|---|
| Ammonia | 2.5K | 2.4K | 2.6K | 1.3K | - | 21.8K | 30.5K |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | - | - | 6.8K | - | - | 3.1K | 9.8K |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 451 | 372 | 793 | 306 | 53 | 319 | 2.3K |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 221 | 196 | 227 | 91 | - | 1.1K | 1.9K |
| Lead compounds | 236 | 231 | 596 | 235 | 47 | 256 | 1.6K |
| Mercury And Mercury Compounds | - | 20 | 50 | - | - | - | 70 |
| Mercury compounds | 23 | - | - | 22 | - | 23 | 69 |
About This Data
Trend data is sourced from the EPA Toxic Release Inventory (TRI). Facilities report annually. Release quantities are self-reported estimates. Year-over-year changes may reflect changes in production, pollution control measures, reporting methodology, or chemical thresholds.
A decrease in reported releases does not necessarily indicate improved environmental performance, as it may reflect production cutbacks, facility closures, or changes in reporting requirements. Similarly, increases may reflect expanded production rather than degraded environmental practices.
Frequently Asked Questions
Is Indian River Generating Station getting cleaner or dirtier? ▼
What time period does this trend data cover? ▼
Read our methodology - how this data is sourced, computed, and verified.