EPA TRI Facility · Fabricated Metals

Southwest Galvanizing Inc

Houston, TX · Parent: Southwest Galvanizing Inc

Total releases
1.2M lbs
Chemicals reported
5
Latest report
2023
Primary pathway
Off-site Transfers
Verify at EPA TRI →

Southwest Galvanizing Inc has reported 1.2M lbs of toxic releases across 5 chemicals to the EPA Toxic Release Inventory, based on annual facility disclosures from 2019 through 2024. The facility operates in the Fabricated Metals sector. The primary release pathway is off-site transfers, accounting for 99% of total releases. All release data shown below is self-reported to the EPA under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313.

#1,174 of 25,902 TRI facilities nationwide by total reported releases - among the top 4.5% of reporting sites by volume. Ranking reflects reported pounds, not toxicity or health risk.

Southwest Galvanizing Inc files annual Form R disclosures to the EPA Toxics Release Inventory under EPCRA Section 313, classified under NAICS 332812 (Fabricated Metals). Across 5 years of records spanning 2019–2023, the site has disclosed 1.2M lbs in cumulative toxic releases across 5 distinct chemicals.

The dominant release pathway is off-site transfers at 1.2M lbs (99.3% of total volume), followed by air releases at 0.6%. Between 2019 and 2023, reported totals decreased by 71% - from 478.5K lbs to 138.7K lbs. The facility is operated under parent company Southwest Galvanizing Inc.

TRI Form R values are self-reported estimates, not measured stack emissions, and treat every pound of reported chemical equally regardless of toxicity. Inclusion in the TRI database does not establish a health risk to nearby residents; it documents the annual reporting record that Southwest Galvanizing Inc has filed with the EPA under federal community right-to-know requirements.

Quick Facts

Industry
Fabricated Metals
NAICS Code
332812
Total Releases
1.2M lbs
Chemicals Reported
5
Latest Report Year
2023

Compare this facility

See how Southwest Galvanizing Inc stacks up against nearby facilities and the typical reporter.

Total reported releases
Southwest Galvanizing Inc
1.2M lbs
Ascend Performance Materials-Chocolate Bayou Plant
94.0M lbs

99% less than the comparison

Chemicals reported
Southwest Galvanizing Inc
5
Ascend Performance Materials-Chocolate Bayou Plant
36

86% 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 Southwest Galvanizing Inc releases toxic chemicals into the environment. Total: 1.2M lbs.

Off-site Transfers 1.2M lbs (99.3%)
Air Releases 6.8K lbs (0.6%)
Water Discharges 2.0K lbs (0.2%)
View 5-Year Emissions Trend →

Emissions Trend Summary

From 2019 to 2023, total releases decreased by 71% (478.5K lbs to 138.7K lbs).

Reported total releases by year

Southwest Galvanizing Inc - annual TRI totals

million lbs

What this shows Year-over-year reported totals. TRI figures are self-reported estimates and can swing with production levels, waste-rock handling and reporting changes, not only with emissions controls.

Source EPA Toxics Release Inventory (TRI)
Year Total Chemicals
2019 478.5K lbs 3
2020 268.7K lbs 3
2021 283.7K lbs 3
2022 32.0K lbs 3
2023 138.7K lbs 3

Chemical Releases

Aggregated across all reporting years (2019–2023). Sorted by total release volume.

Chemical Total Flags
Zinc compounds 1.2M lbs -
Lead compounds 8.7K lbs -
Lead And Lead Compounds 1.2K lbs -
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 342 lbs -
Barium And Barium Compounds 92 lbs -

Location

Coordinates
29.7749, -95.2784
ZIP Code
77029
EPA Facility ID
77229STHWS737AL

About TRI Data

Data as of 2024 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.

Data comes from the EPA Toxic Release Inventory (TRI) program. Facilities that manufacture, process, or otherwise use listed toxic chemicals above threshold amounts are required to report annually to the EPA.

Release quantities are self-reported by the facility and may represent estimates rather than exact measurements. "Total releases" includes releases to air, water, land, and off-site transfers for disposal. Quantities shown here are aggregated across all available reporting years.

PlainEnviro presents this data without advocacy framing. The presence of a facility in the TRI database does not by itself indicate a health risk. For site-specific health questions, consult your local environmental or health agency.

Frequently Asked Questions

What chemicals does Southwest Galvanizing Inc release?
Southwest Galvanizing Inc has reported releases of 5 chemicals to the EPA Toxic Release Inventory, totaling 1.2M lbs.
What industry is Southwest Galvanizing Inc in?
Southwest Galvanizing Inc is classified under the "Fabricated Metals" industry (NAICS code 332812), located in Houston, TX.
How long has Southwest Galvanizing Inc reported to the TRI?
Southwest Galvanizing Inc has EPA Toxic Release Inventory data spanning 5 years, from 2019 to 2023.
How does Southwest Galvanizing Inc release toxic chemicals?
The primary release pathway for Southwest Galvanizing Inc is off-site transfers, accounting for 99.3% of total releases (1.2M lbs). Secondary pathway: air releases (0.6%).
Are emissions from Southwest Galvanizing Inc increasing or decreasing?
From 2019 to 2023, total releases decreased by 71%, from 478.5K lbs to 138.7K lbs.
Is Southwest Galvanizing Inc a health risk?
The presence of a facility in the TRI database does not by itself indicate a health risk. Release quantities are self-reported estimates. For site-specific health questions, consult your local environmental or health agency.

Related

Sources & how this page was built

Every figure on this page traces to public, federal-government data on Southwest Galvanizing Inc. The records below are the primary sources; our methodology explains how they are joined, computed, and verified.

Retrieved and formatted by PlainEnviro Editorial. TRI release totals are self-reported estimates, not measured stack emissions.