EPA TRI Facility · Fabricated Metals
Surface Treatment & Inspection (st&i) Inc.
Paramount, CA
- Total releases
- 95.9K lbs
- Chemicals reported
- 2
- Latest report
- 2022
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Surface Treatment & Inspection (st&i) Inc.: how the 95.9K lbs splits
95.9K lbs across all reported pathways
- Off-site Transfers 87.8K lbs 91.5%
- Air Releases 8.1K lbs 8.5%
Surface Treatment & Inspection (st&i) Inc.'s 95.9K lbs Form-R total is OFFSITE - off-site transfers is 91.5% of the bar. Next segment: air releases at 8.5%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
LIGHT volume OFFSITE pathway CLEAN
Surface Treatment & Inspection (st&i) Inc. is an EPA Toxics Release Inventory reporter in Paramount, CA, in the fabricated metals sector. It reported 2.3K lbs of releases across 1 chemical in 2022, and 95.9K lbs in total across its 2019-2022 reporting years. That ranks 4,679 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. Surface Treatment & Inspection (st&i) Inc. is pounds #150 and chemical-count #544 at 95.9K 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). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Aerocraft Heat Treating Co. Inc; Carlton Forge Works; Press Forge Co; Weber Metals Inc.. Similar-scale Fabricated Metals peers outside California: De Nora Tech Inc Chardon Manufacturing Facility; Valmont Coatings Intermountain Galvanizing; Nagalv-Ohio Inc; Pioneer Metal Finishing LLC. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Nitric acid.
Compare Surface Treatment & Inspection (st&i) Inc. with
Nearest reporters in California
- Aerocraft Heat Treating Co. Inc Paramount · 10.4K lbs
- Carlton Forge Works Paramount · 1.3K lbs
- Press Forge Co Paramount · 353.9K lbs
- Weber Metals Inc. Paramount · 136.7K lbs
Similar-scale Fabricated Metals sites elsewhere: De Nora Tech Inc Chardon Manufacturing Facility (OH) · Valmont Coatings Intermountain Galvanizing (UT) · Nagalv-Ohio Inc (OH)
Surface Treatment & Inspection (st&i) Inc. stamps LIGHT volume with a dominant OFFSITE pathway (91.5% off-site transfers) across 2 chemicals. Cumulative Form-R extract: 95.9K lbs (2019–2022). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include De Nora Tech Inc Chardon Manufacturing Facility and Valmont Coatings Intermountain Galvanizing.
Surface Treatment & Inspection (st&i) Inc. vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
96K lbs Top 18% higher than 82% 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
Surface Treatment & Inspection (st&i) Inc.: Nitrate compounds (water dissociable; reportable only when in aqueous solution)-led volume
Among the 3,421 Fabricated Metals facilities in this database, Surface Treatment & Inspection (st&i) Inc. reports the 473rd-largest volume, placing it in the top 13.8% of its sector. Its reported volume is concentrated rather than spread: Nitrate compounds (water dissociable; reportable only when in aqueous solution) alone is 91.5% of the total. Scale peers outside California include De Nora Tech Inc Chardon Manufacturing Facility and Valmont Coatings Intermountain Galvanizing.
Concentrated means ≥60% of Surface Treatment & Inspection (st&i) Inc.'s pounds in one chemical - here Nitrate compounds (water dissociable; reportable only when in aqueous solution) at 91.5%. Not a toxicity score.
Surface Treatment & Inspection (st&i) Inc. Form-R facts
Compare this facility
See how Surface Treatment & Inspection (st&i) Inc. stacks up against nearby facilities and the typical reporter.
9.3× more than the comparison
33% 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 Surface Treatment & Inspection (st&i) Inc. releases toxic chemicals into the environment. Total: 95.9K lbs.
Emissions Trend Summary
From 2019 to 2022, total releases decreased by 95% (47.8K lbs to 2.3K lbs).
Surface Treatment & Inspection (st&i) Inc.: annual Form-R pounds
LIGHT site · OFFSITE pathway · TRI years 2019–2022
- 2019 0
- 2020 0
- 2021 0
- 2022 0
What this shows Surface Treatment & Inspection (st&i) Inc. year-over-year reported totals (decreased by 95% from 2019 to 2022). 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: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 47.8K lbs | 2 |
| 2020 | 40.9K lbs | 2 |
| 2021 | 5.0K lbs | 2 |
| 2022 | 2.3K lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2022). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 87.8K lbs | - |
| Nitric acid | 8.1K lbs | - |
Surface Treatment & Inspection (st&i) Inc. · OFFSITE-pathway site
Nearest TRI Facilities to Surface Treatment & Inspection (st&i) Inc.
Closest other reporters in California - including Aerocraft Heat Treating Co. Inc, Carlton Forge Works, Press Forge Co, ordered by distance.
Showing 8 of 1,148 other reporting facilities in California.
Similar Fabricated Metals Facilities
Other Fabricated Metals facilities with similar total release volumes (±80%), outside California - e.g. De Nora Tech Inc Chardon Manufacturing Facility, Valmont Coatings Intermountain Galvanizing, Nagalv-Ohio Inc.
Compare beyond California
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Surface Treatment & Inspection (st&i) Inc. on cumulative reported pounds (95.9K lbs) and distinct chemical count (2). Release-pound peers include American Italian Pasta Co, Nexeo Solutions LLC, Cemex Construction Materials South LLC - Balcones Plant. Chemical-count peers include Idi Caribe Inc, Suiza Dairy Corp, Edwards Lifesciences Technology Sarl. 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.
- American Italian Pasta Co Excelsior Springs, MO · Food 95.9K lbs reported
- Nexeo Solutions LLC Kansas City, KS · Chemical Wholesalers 95.9K lbs reported
- Cemex Construction Materials South LLC - Balcones Plant New Braunfels, TX · Nonmetallic Mineral Product 96.0K lbs reported
- Shell Norco Chemical Plant West Site Norco, LA · Chemicals 96.0K 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 Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid; nearby reporters include Aerocraft Heat Treating Co. Inc. Surface Treatment & Inspection (st&i) Inc. stamps LIGHT volume · OFFSITE 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 Surface Treatment & Inspection (st&i) Inc. TRI extract (LIGHT · OFFSITE · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Surface Treatment & Inspection (st&i) Inc. totals are self-reported EPCRA §313 estimates for Paramount, CA, latest year 2022. Form-R rows span 2019–2022 (4 years). NAICS 332812 · Fabricated Metals. 0.2% of Los Angeles TRI pounds in this extract. Nearest ABS peer: American Italian Pasta Co (Δ 32 lbs). Pounds ≠ exposure.
Surface Treatment & Inspection (st&i) Inc. stamps LIGHT volume · OFFSITE pathway · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). 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