EPA TRI Facility · Chemicals
Si Group Inc
Orangeburg, SC · Parent: Si Group Inc
- Total releases
- 9.1M lbs
- Chemicals reported
- 18
- Carcinogens
- 4
- Primary pathway
- Air Releases
MIXED Form-R mix
Si Group Inc: how the 9.1M lbs splits
9.1M lbs across all reported pathways
- Air Releases 6.1M lbs 67.3%
- Off-site Transfers 2.2M lbs 24.7%
- Water Discharges 588.0K lbs 6.5%
- Land Disposal 130.0K lbs 1.4%
Si Group Inc's 9.1M lbs Form-R total is MIXED - air releases is 67.3% of the bar. Next segment: off-site transfers at 24.7%. Leading chemical by pounds: Ammonia.
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.
HEAVY volume MIXED pathway CARC-LEAN
Si Group Inc is an EPA Toxics Release Inventory reporter in Orangeburg, SC, in the chemicals sector. It reported 1.1M lbs of releases across 14 chemicals in 2023, and 9.1M lbs in total across its 2019-2023 reporting years. That ranks 236 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In South Carolina's 574 reporting TRI sites, pounds #1 is not chemical-count #1. Si Group Inc is pounds #5 and chemical-count #18 at 9.1M lbs. Oceanagold Haile Gold Mine leads reported pounds (30.2M lbs) at 19 chemicals (chemical-count #14). Giant Cement Co leads chemical count at 90 chemicals (53.3K lbs, pounds #185). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Valtir LLC Plt 1478; Zeus Co LLC Osc; Okonite Co Inc; Gulbrandsen Inc. Similar-scale Chemicals peers outside South Carolina: Inv Nylon Chemicals Americas Orange Site; Basf Corp; Basf Corp - Freeport Site; Equistar Chemicals Clinton Plant. Other Si Group Inc sites in this extract: Si Group Inc. - Newport Tn; Si Group Inc; Si Group Inc; Si Group Inc. Largest disclosed chemicals by pounds: Ammonia; Manganese compounds; Dichloromethane; Methanol.
Si Group Inc is a HEAVY · MIXED-pathway Form-R site in Orangeburg, SC: 9.1M lbs across 18 chemicals (4 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment air releases at 67.3%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Inv Nylon Chemicals Americas Orange Site and Basf Corp.
Si Group Inc vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
9.1M lbs Top 1% higher than 99% 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
Si Group Inc inside Orangeburg's TRI pounds
Among the 3,917 Chemicals facilities in this database, Si Group Inc reports the 47th-largest volume, placing it in the top 1.2% of its sector. This one site accounts for 66.6% of every pound reported in Orangeburg. Scale peers outside South Carolina include Inv Nylon Chemicals Americas Orange Site and Basf Corp.
County-dominant here means ≥25% of Orangeburg's reported pounds (13.6M lbs county total). Shares only print when the site reports ≥1,000 lbs.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Si Group Inc's total reported releases fell from 1.3 million lb in 2022 to 1.1 million lb in 2023, based on EPA TRI filings.
- Si Group Inc's off-site transfers fell from 227.5 thousand lb in 2022 to 32 lb in 2023, based on EPA TRI filings.
- Si Group Inc's water releases rose from 113.1 thousand lb in 2022 to 159.5 thousand lb in 2023, based on EPA TRI filings.
- Si Group Inc's chemicals reported fell from 16 in 2022 to 14 in 2023, based on EPA TRI filings.
Si Group Inc Form-R facts
Compare this facility
See how Si Group Inc stacks up against nearby facilities and the typical reporter.
7.2× more than the comparison
3.6× 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 Si Group Inc releases toxic chemicals into the environment. Total: 9.1M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 51% (2.3M lbs to 1.1M lbs).
Si Group Inc: annual Form-R pounds
HEAVY site · MIXED pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022 1
- 2023 1
What this shows Si Group Inc year-over-year reported totals (decreased by 51% 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: Ammonia.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 2.3M lbs | 17 |
| 2020 | 2.7M lbs | 16 |
| 2021 | 1.5M lbs | 14 |
| 2022 | 1.3M lbs | 16 |
| 2023 | 1.1M lbs | 14 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 4 of 18 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ammonia | 2.7M lbs | - |
| Manganese compounds | 1.9M lbs | - |
| Dichloromethane | 1.8M lbs | Carcinogen |
| Methanol | 1.4M lbs | - |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 297.4K lbs | - |
| Manganese And Manganese Compounds | 220.6K lbs | - |
| Formaldehyde | 210.0K lbs | Carcinogen |
| Propylene | 157.3K lbs | - |
| Toluene | 126.2K lbs | - |
| n-Hexane | 42.5K lbs | - |
| Methyl acrylate | 29.9K lbs | Carcinogen |
| Certain glycol ethers | 28.8K lbs | - |
| Propylene oxide | 21.2K lbs | Carcinogen |
| Phenol | 13.6K lbs | - |
| Dimethylamine | 8.4K lbs | - |
| Hydrogen cyanide | 6.7K lbs | - |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1.9K lbs | - |
| 1,2,4-Trimethylbenzene | 155 lbs | - |
Si Group Inc in Orangeburg
Nearest TRI Facilities to Si Group Inc
Closest other reporters in South Carolina - including Valtir LLC Plt 1478, Zeus Co LLC Osc, Okonite Co Inc, ordered by distance.
Showing 8 of 573 other reporting facilities in South Carolina.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside South Carolina - e.g. Inv Nylon Chemicals Americas Orange Site, Basf Corp, Basf Corp - Freeport Site.
Compare beyond South Carolina
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Si Group Inc on cumulative reported pounds (9.1M lbs) and distinct chemical count (18). Release-pound peers include Conemaugh Generating Station, Inv Nylon Chemicals Americas Orange Site, Darling Ingredients Inc.- Linkwood Facility. Chemical-count peers include Pride Solvents & Chemical Co of New Jersey, Mpm Silicones LLC, Max Environmental -- Yukon Facility. 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.
- Conemaugh Generating Station New Florence, PA · Electric Utilities 9.0M lbs reported
- Inv Nylon Chemicals Americas Orange Site Orange, TX · Chemicals 9.1M lbs reported
- Darling Ingredients Inc.- Linkwood Facility Linkwood, MD · Food 9.1M lbs reported
- Swift Pork Marshalltown, IA · Food 9.2M lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Pride Solvents & Chemical Co of New Jersey Avenel, NJ · Chemical Wholesalers 18 chemicals
- Mpm Silicones LLC Waterford, NY · Chemicals 18 chemicals
- Max Environmental -- Yukon Facility Yukon, PA · Hazardous Waste 18 chemicals
- Desotec US LLC Darlington Facility Darlington, PA · Hazardous Waste 18 chemicals
Other Si Group Inc Facilities
Same-parent TRI sites ranked by reported releases - including Si Group Inc. - Newport Tn, Si Group Inc, Si Group 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 Ammonia, Manganese compounds, Dichloromethane, Methanol; nearby reporters include Valtir LLC Plt 1478. Si Group Inc stamps HEAVY volume · MIXED 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 Si Group Inc TRI extract (HEAVY · MIXED · CARC-LEAN · lead Ammonia) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Si Group Inc totals are self-reported EPCRA §313 estimates for Orangeburg, SC, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325412 · Chemicals. 66.6% of Orangeburg TRI pounds in this extract. Nearest ABS peer: Conemaugh Generating Station (Δ 4.9K lbs). Pounds ≠ exposure.
Si Group Inc stamps HEAVY · MIXED pathway (air releases leads at 67.3%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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