EPA TRI Facility · Machinery
Rehlko - Hattiesburg Engine Plant No. 1
Hattiesburg, MS · Parent: Discovery Energy LLC
- Total releases
- 25.8K lbs
- Chemicals reported
- 5
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Rehlko - Hattiesburg Engine Plant No. 1: how the 25.8K lbs splits
25.8K lbs across all reported pathways
- Off-site Transfers 25.8K lbs 100.0%
Rehlko - Hattiesburg Engine Plant No. 1's 25.8K lbs Form-R total is OFFSITE - off-site transfers is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Copper.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
LIGHT volume OFFSITE pathway CARC-LEAN
Rehlko - Hattiesburg Engine Plant No. 1 is an EPA Toxics Release Inventory reporter in Hattiesburg, MS, in the machinery sector. It reported 3.3K lbs of releases across 4 chemicals in 2023, and 25.8K lbs in total across its 2019-2023 reporting years. That ranks 7,663 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Mississippi's 328 reporting TRI sites, pounds #1 is not chemical-count #1. Rehlko - Hattiesburg Engine Plant No. 1 is pounds #132 and chemical-count #74 at 25.8K lbs. Tronox LLC leads reported pounds (64.0M lbs) at 17 chemicals (chemical-count #12). Chevron Products Co Pascagoula Refinery leads chemical count at 46 chemicals (7.4M lbs, pounds #9). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: USA Yeast Co; Johnson Controls - York International; Resinall Corp; C L Dews & Sons Foundry & Machinery Co Inc. Similar-scale Machinery peers outside Mississippi: Nov Downhole Conroe; John Deere Waterloo Works Tcao; Duoline Technologies Inc.; American Gfm Corp. Other Discovery Energy LLC sites in this extract: Rehlko-Mosel; Rehlko-Saukville. Largest disclosed chemicals by pounds: Copper; Chromium; Nickel; Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region).
Rehlko - Hattiesburg Engine Plant No. 1 stamps LIGHT volume with a dominant OFFSITE pathway (100.0% off-site transfers) across 5 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 25.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Nov Downhole Conroe and John Deere Waterloo Works Tcao.
Rehlko - Hattiesburg Engine Plant No. 1 vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
26K lbs Top 29% higher than 71% 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
Rehlko - Hattiesburg Engine Plant No. 1: Copper-led volume
Among the 1,186 Machinery facilities in this database, Rehlko - Hattiesburg Engine Plant No. 1 reports the 134th-largest volume, placing it in the top 11.3% of its sector. Its reported volume is concentrated rather than spread: Copper alone is 94.1% of the total. Scale peers outside Mississippi include Nov Downhole Conroe and John Deere Waterloo Works Tcao.
Concentrated means ≥60% of Rehlko - Hattiesburg Engine Plant No. 1's pounds in one chemical - here Copper at 94.1%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Rehlko - Hattiesburg Engine Plant No. 1's total reported releases fell from 9.1 thousand lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
- Rehlko - Hattiesburg Engine Plant No. 1's off-site transfers fell from 9.1 thousand lb in 2022 to 3.3 thousand lb in 2023, based on EPA TRI filings.
Rehlko - Hattiesburg Engine Plant No. 1 Form-R facts
Compare this facility
See how Rehlko - Hattiesburg Engine Plant No. 1 stacks up against nearby facilities and the typical reporter.
644.7× more than the comparison
2.5× 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 Rehlko - Hattiesburg Engine Plant No. 1 releases toxic chemicals into the environment. Total: 25.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 289% (843 lbs to 3.3K lbs).
Rehlko - Hattiesburg Engine Plant No. 1: annual Form-R pounds
LIGHT site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Rehlko - Hattiesburg Engine Plant No. 1 year-over-year reported totals (increased by 289% 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: Copper.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 843 lbs | 2 |
| 2020 | 2.6K lbs | 2 |
| 2021 | 9.9K lbs | 4 |
| 2022 | 9.1K lbs | 4 |
| 2023 | 3.3K lbs | 4 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 5 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Copper | 24.3K lbs | - |
| Chromium | 565 lbs | - |
| Nickel | 495 lbs | Carcinogen |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 450 lbs | - |
| Lead | 6 lbs | Carcinogen |
Rehlko - Hattiesburg Engine Plant No. 1 · OFFSITE-pathway site
Nearest TRI Facilities to Rehlko - Hattiesburg Engine Plant No. 1
Closest other reporters in Mississippi - including USA Yeast Co, Johnson Controls - York International, Resinall Corp, ordered by distance.
Showing 8 of 327 other reporting facilities in Mississippi.
Similar Machinery Facilities
Other Machinery facilities with similar total release volumes (±80%), outside Mississippi - e.g. Nov Downhole Conroe, John Deere Waterloo Works Tcao, Duoline Technologies Inc..
Compare beyond Mississippi
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Rehlko - Hattiesburg Engine Plant No. 1 on cumulative reported pounds (25.8K lbs) and distinct chemical count (5). Release-pound peers include Dentsply Sirona - Milford Site, Trend Offset Printing Services Inc, Sherwin-Williams Co. Chemical-count peers include Abbvie Ltd, Lilly del Caribe Inc Carolin A, Baxter Healthcare of Puerto Rico LLC. 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.
- Dentsply Sirona - Milford Site Milford, DE · Miscellaneous Manufacturing 25.8K lbs reported
- Trend Offset Printing Services Inc Los Alamitos, CA · Printing 25.8K lbs reported
- Sherwin-Williams Co Covington, GA · Chemicals 25.8K lbs reported
- Nof Metal Coatings N.a. Chardon, OH · Chemicals 25.8K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Discovery Energy LLC Facilities
Same-parent TRI sites ranked by reported releases - including Rehlko-Mosel, Rehlko-Saukville.
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 Copper, Chromium, Nickel, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region); nearby reporters include USA Yeast Co. Rehlko - Hattiesburg Engine Plant No. 1 stamps LIGHT volume · OFFSITE pathway · CARC-LEAN 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 Rehlko - Hattiesburg Engine Plant No. 1 TRI extract (LIGHT · OFFSITE · CARC-LEAN · lead Copper) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Rehlko - Hattiesburg Engine Plant No. 1 totals are self-reported EPCRA §313 estimates for Hattiesburg, MS, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 333618 · Machinery. 1.5% of Forrest TRI pounds in this extract. Nearest ABS peer: Dentsply Sirona - Milford Site (Δ 4 lbs). Pounds ≠ exposure.
Rehlko - Hattiesburg Engine Plant No. 1 stamps LIGHT volume · OFFSITE pathway · CARC-LEAN · lead Copper. 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