EPA TRI Facility · Chemicals
Promega Corp
San Luis Obispo, CA · Parent: Promega Corp
- Total releases
- 10.1K lbs
- Chemicals reported
- 3
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Promega Corp: how the 10.1K lbs splits
10.1K lbs across all reported pathways
- Air Releases 10.1K lbs 100.0%
Promega Corp's 10.1K 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: Dichloromethane.
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-HEAVY
Promega Corp is an EPA Toxics Release Inventory reporter in San Luis Obispo, CA, in the chemicals sector. It reported 1.3K lbs of releases across 2 chemicals in 2023, and 10.1K lbs in total across its 2019-2023 reporting years. That ranks 9,807 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In California's 1,149 reporting TRI sites, pounds #1 is not chemical-count #1. Promega Corp is pounds #411 and chemical-count #433 at 10.1K lbs. Clean Harbors Buttonwillow LLC leads reported pounds (50.4M lbs) at 45 chemicals (chemical-count #2). Chevron Products Co Richmond Refinery leads chemical count at 46 chemicals (3.0M lbs, pounds #13). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Martin Marietta Ca Ready Mix - San Luis Obipso; Entegris - San Luis Obispo; U.S. Army National Guard Camp San Luis Obispo Ranges; Rantec Power Systems Inc. Similar-scale Chemicals peers outside California: Highline Warren LLC; The Elco Corp; Lamberti Synthesis USA Inc; Standard Paints Inc.. Largest disclosed chemicals by pounds: Dichloromethane; Methanol; Acetonitrile.
Compare Promega Corp with
Nearest reporters in California
- Martin Marietta Ca Ready Mix - San Luis Obipso San Luis Obispo · 0 lbs
- Entegris - San Luis Obispo San Luis Obispo · 2.0K lbs
- U.S. Army National Guard Camp San Luis Obispo Ranges San Luis Obispo · 31.9K lbs
- Rantec Power Systems Inc Los Osos · 1.2K lbs
Similar-scale Chemicals sites elsewhere: Highline Warren LLC (DE) · The Elco Corp (OH) · Lamberti Synthesis USA Inc (TN)
Promega Corp stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 3 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 10.1K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Highline Warren LLC and The Elco Corp.
Promega Corp vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
10K lbs Top 38% higher than 62% 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
Promega Corp: Dichloromethane-led volume
Among the 3,917 Chemicals facilities in this database, Promega Corp reports the 2,055th-largest volume (10.1K lbs). Its reported volume is concentrated rather than spread: Dichloromethane alone is 70.3% of the total. Carcinogen-classified chemicals make up 70.3% of the reported pounds, not just of the chemical count. Scale peers outside California include Highline Warren LLC and The Elco Corp.
Concentrated means ≥60% of Promega Corp's pounds in one chemical - here Dichloromethane at 70.3%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Promega Corp's total reported releases fell from 2.3 thousand lb in 2022 to 1.3 thousand lb in 2023, based on EPA TRI filings.
- Promega Corp's air releases fell from 2.3 thousand lb in 2022 to 1.3 thousand lb in 2023, based on EPA TRI filings.
Promega Corp Form-R facts
Compare this facility
See how Promega Corp stacks up against nearby facilities and the typical reporter.
631900.0× more than the comparison
50% 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 Promega Corp releases toxic chemicals into the environment. Total: 10.1K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 27% (1.8K lbs to 1.3K lbs).
Promega Corp: 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 Promega Corp year-over-year reported totals (decreased by 27% 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: Dichloromethane.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1.8K lbs | 2 |
| 2020 | 2.8K lbs | 3 |
| 2021 | 1.9K lbs | 2 |
| 2022 | 2.3K lbs | 2 |
| 2023 | 1.3K lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 3 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Dichloromethane | 7.1K lbs | Carcinogen |
| Methanol | 2.7K lbs | - |
| Acetonitrile | 294 lbs | - |
Promega Corp · AIR-pathway site
Nearest TRI Facilities to Promega Corp
Closest other reporters in California - including Martin Marietta Ca Ready Mix - San Luis Obipso, Entegris - San Luis Obispo, U.S. Army National Guard Camp San Luis Obispo Ranges, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside California - e.g. Highline Warren LLC, The Elco Corp, Lamberti Synthesis USA Inc.
Compare beyond California
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Promega Corp on cumulative reported pounds (10.1K lbs) and distinct chemical count (3). Release-pound peers include Fcc Hazelton, Linamar Structures USA (michigan) Inc, Kasai N.a. Inc. 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.
- Fcc Hazelton Bruceton Mills, WV · Other 10.1K lbs reported
- Linamar Structures USA (michigan) Inc Hartselle, AL · Machinery 10.1K lbs reported
- Kasai N.a. Inc Manchester, TN · Transportation Equipment 10.1K lbs reported
- Aerospace Coatings International LLC Oxford, AL · Fabricated Metals 10.1K lbs reported
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 Dichloromethane, Methanol, Acetonitrile; nearby reporters include Martin Marietta Ca Ready Mix - San Luis Obipso. Promega Corp stamps LIGHT volume · AIR pathway · CARC-HEAVY 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 Promega Corp TRI extract (LIGHT · AIR · CARC-HEAVY · lead Dichloromethane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Promega Corp totals are self-reported EPCRA §313 estimates for San Luis Obispo, CA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325413 · Chemicals. 3.5% of San Luis Obispo TRI pounds in this extract. Nearest ABS peer: Fcc Hazelton (Δ 4 lbs). Pounds ≠ exposure.
Promega Corp stamps LIGHT volume · AIR pathway · CARC-HEAVY · lead Dichloromethane. 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