EPA TRI Facility · Computers and Electronic Products
Memc LLC
Saint Peters, MO
- Total releases
- 6.7K lbs
- Chemicals reported
- 3
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
Memc LLC: how the 6.7K lbs splits
6.7K lbs across all reported pathways
- Air Releases 6.7K lbs 100.0%
Memc LLC's 6.7K lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
LIGHT volume AIR pathway CLEAN
Memc LLC is an EPA Toxics Release Inventory reporter in Saint Peters, MO, in the computers and electronic products sector. It reported 2.2K lbs of releases across 3 chemicals in 2023, and 6.7K lbs in total across its 2019-2023 reporting years. That ranks 10,622 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Missouri's 491 reporting TRI sites, pounds #1 is not chemical-count #1. Memc LLC is pounds #264 and chemical-count #241 at 6.7K lbs. Buick Mine/mill leads reported pounds (48.2M lbs) at 8 chemicals (chemical-count #66). Buzzi Unicem Usa-Cape Girardeau leads chemical count at 87 chemicals (904.5K lbs, pounds #44). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Modineer Plant 7; Woodbridge Corp Saint Peters; Zoltek Corp; True Manufacturing Co Inc. Similar-scale Computers and Electronic Products peers outside Missouri: Ttm Technologies; Ametek Aegis; Ademco Inc; Royal Circuit Solutions Inc.. Largest disclosed chemicals by pounds: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size); Ozone; Hydrogen fluoride.
Memc LLC stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 3 chemicals. Cumulative Form-R extract: 6.7K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Ttm Technologies and Ametek Aegis.
Memc LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
6.7K lbs Top 41% higher than 59% 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
Memc LLC: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)-led volume
Among the 760 Computers and Electronic Products facilities in this database, Memc LLC reports the 177th-largest volume, placing it in the top 23.3% of its sector. Its reported volume is concentrated rather than spread: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) alone is 69.8% of the total. Scale peers outside Missouri include Ttm Technologies and Ametek Aegis.
Concentrated means ≥60% of Memc LLC's pounds in one chemical - here Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) at 69.8%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Memc LLC's total reported releases rose from 2.1 thousand lb in 2022 to 2.2 thousand lb in 2023, based on EPA TRI filings.
- Memc LLC's air releases rose from 2.1 thousand lb in 2022 to 2.2 thousand lb in 2023, based on EPA TRI filings.
Memc LLC Form-R facts
Compare this facility
See how Memc LLC stacks up against nearby facilities and the typical reporter.
64.2× more than the comparison
40% 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 Memc LLC releases toxic chemicals into the environment. Total: 6.7K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 521% (353 lbs to 2.2K lbs).
Memc LLC: 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 Memc LLC year-over-year reported totals (increased by 521% 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: Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 353 lbs | 2 |
| 2020 | 950 lbs | 2 |
| 2021 | 1.2K lbs | 2 |
| 2022 | 2.1K lbs | 3 |
| 2023 | 2.2K lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4.7K lbs | - |
| Ozone | 1.8K lbs | - |
| Hydrogen fluoride | 259 lbs | - |
Memc LLC · AIR-pathway site
Nearest TRI Facilities to Memc LLC
Closest other reporters in Missouri - including Modineer Plant 7, Woodbridge Corp Saint Peters, Zoltek Corp, ordered by distance.
Showing 8 of 490 other reporting facilities in Missouri.
Similar Computers and Electronic Products Facilities
Other Computers and Electronic Products facilities with similar total release volumes (±80%), outside Missouri - e.g. Ttm Technologies, Ametek Aegis, Ademco Inc.
Compare beyond Missouri
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Memc LLC on cumulative reported pounds (6.7K lbs) and distinct chemical count (3). Release-pound peers include Switzerland Hills Inc, Nhs U.S. LLC, Wyman-Gordon Co. Chemical-count peers include Industrial C&s of Pr LLC Arecibo Plant, Island Litho Corp., Fenwal International Inc. 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).
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 Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ozone, Hydrogen fluoride; nearby reporters include Modineer Plant 7. Memc LLC stamps LIGHT volume · AIR pathway · CLEAN 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 Memc LLC TRI extract (LIGHT · AIR · CLEAN · lead Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Memc LLC totals are self-reported EPCRA §313 estimates for Saint Peters, MO, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 334413 · Computers and Electronic Products. 0.1% of St. Charles TRI pounds in this extract. Nearest ABS peer: Switzerland Hills Inc (Δ 0 lbs). Pounds ≠ exposure.
Memc LLC stamps LIGHT volume · AIR pathway · CLEAN · lead Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size). 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