EPA TRI Facility · Chemicals
Sem Products Inc
Rock Hill, SC · Parent: Ppg Industries Inc
- Total releases
- 72.2K lbs
- Chemicals reported
- 6
- Carcinogens
- 2
- Primary pathway
- Air Releases
AIR Form-R mix
Sem Products Inc: how the 72.2K lbs splits
72.2K lbs across all reported pathways
- Air Releases 61.7K lbs 85.4%
- Off-site Transfers 10.6K lbs 14.6%
- Land Disposal 0 lbs <0.1%
Sem Products Inc's 72.2K lbs Form-R total is AIR - air releases is 85.4% of the bar. Next segment: off-site transfers at 14.6%. Leading chemical by pounds: Toluene.
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 AIR pathway CARC-LEAN
Sem Products Inc is an EPA Toxics Release Inventory reporter in Rock Hill, SC, in the chemicals sector. It reported 19.3K lbs of releases across 6 chemicals in 2023, and 72.2K lbs in total across its 2019-2023 reporting years. That ranks 5,298 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. Sem Products Inc is pounds #165 and chemical-count #111 at 72.2K 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: Atotech USA LLC; Harrell Industries Inc; Nation Ford Chemical Co; Catoe & Nalley Industrial Solutions Inc.. Similar-scale Chemicals peers outside South Carolina: Poole Chemical Co Inc; Marysville Ethanol LLC; Trenton Agri Products LLC; Janssen Pharmaceuticals Inc.. Other Ppg Industries Inc sites in this extract: Ppg Protective & Marine Coat Ings; Ppg Industriesinc-Springdale Complex; Ppg Industries Inc Barberton; Ppg Brazil Liquid. Largest disclosed chemicals by pounds: Toluene; Xylene (mixed isomers); Ethylbenzene; Methyl isobutyl ketone.
Sem Products Inc stamps LIGHT volume with a dominant AIR pathway (85.4% air releases) across 6 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 72.2K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Poole Chemical Co Inc and Marysville Ethanol LLC.
Sem Products Inc vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
72K lbs Top 20% higher than 80% 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
Sem Products Inc: Toluene-led volume
Among the 3,917 Chemicals facilities in this database, Sem Products Inc reports the 1,090th-largest volume (72.2K lbs). Its reported volume is concentrated rather than spread: Toluene alone is 66.3% of the total. Scale peers outside South Carolina include Poole Chemical Co Inc and Marysville Ethanol LLC.
Concentrated means ≥60% of Sem Products Inc's pounds in one chemical - here Toluene at 66.3%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Sem Products Inc's total reported releases fell from 26.8 thousand lb in 2022 to 19.3 thousand lb in 2023, based on EPA TRI filings.
- Sem Products Inc's off-site transfers fell from 8.2 thousand lb in 2022 to 2.3 thousand lb in 2023, based on EPA TRI filings.
- Sem Products Inc's air releases fell from 18.5 thousand lb in 2022 to 17.0 thousand lb in 2023, based on EPA TRI filings.
Sem Products Inc Form-R facts
Compare this facility
See how Sem Products Inc stacks up against nearby facilities and the typical reporter.
67% less than the comparison
63% less 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 Sem Products Inc releases toxic chemicals into the environment. Total: 72.2K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 148% (7.8K lbs to 19.3K lbs).
Sem Products Inc: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Sem Products Inc year-over-year reported totals (increased by 148% 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: Toluene.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 7.8K lbs | 2 |
| 2020 | 7.8K lbs | 2 |
| 2021 | 10.5K lbs | 2 |
| 2022 | 26.8K lbs | 6 |
| 2023 | 19.3K lbs | 6 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 6 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Toluene | 47.9K lbs | - |
| Xylene (mixed isomers) | 15.0K lbs | - |
| Ethylbenzene | 3.5K lbs | Carcinogen |
| Methyl isobutyl ketone | 3.0K lbs | Carcinogen |
| Certain glycol ethers | 1.6K lbs | - |
| Methanol | 1.2K lbs | - |
Sem Products Inc · AIR-pathway site
Nearest TRI Facilities to Sem Products Inc
Closest other reporters in South Carolina - including Atotech USA LLC, Harrell Industries Inc, Nation Ford Chemical Co, 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. Poole Chemical Co Inc, Marysville Ethanol LLC, Trenton Agri Products LLC.
Compare beyond South Carolina
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Sem Products Inc on cumulative reported pounds (72.2K lbs) and distinct chemical count (6). Release-pound peers include Poole Chemical Co Inc, Marysville Ethanol LLC, Univar Solutions USA. Chemical-count peers include Eaton Intelligent Power Ltd, Leoni Wire Inc, Turf Care Supply-Hatfield Plant. 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).
Other Ppg Industries Inc Facilities
Same-parent TRI sites ranked by reported releases - including Ppg Protective & Marine Coat Ings, Ppg Industriesinc-Springdale Complex, Ppg Industries Inc Barberton.
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 Toluene, Xylene (mixed isomers), Ethylbenzene, Methyl isobutyl ketone; nearby reporters include Atotech USA LLC. Sem Products Inc stamps LIGHT volume · AIR 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 Sem Products Inc TRI extract (LIGHT · AIR · CARC-LEAN · lead Toluene) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Sem Products Inc totals are self-reported EPCRA §313 estimates for Rock Hill, SC, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325510 · Chemicals. 0.5% of York TRI pounds in this extract. Nearest ABS peer: Poole Chemical Co Inc (Δ 17 lbs). Pounds ≠ exposure.
Sem Products Inc stamps LIGHT volume · AIR pathway · CARC-LEAN · lead Toluene. 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