EPA TRI Facility · Primary Metals
Nov Quality Tubing
Houston, TX · Parent: National Oilwell Varco LP
- Total releases
- 574.1K lbs
- Chemicals reported
- 11
- Carcinogens
- 4
- Primary pathway
- Air Releases
AIR Form-R mix
Nov Quality Tubing: how the 574.1K lbs splits
574.1K lbs across all reported pathways
- Air Releases 570.1K lbs 99.3%
- Off-site Transfers 4.0K lbs 0.7%
Nov Quality Tubing's 574.1K lbs Form-R total is AIR - air releases is 99.3% of the bar. Next segment: off-site transfers at 0.7%. Leading chemical by pounds: Methyl isobutyl ketone.
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.
MID volume AIR pathway CARC-HEAVY
Nov Quality Tubing is an EPA Toxics Release Inventory reporter in Houston, TX, in the primary metals sector. It reported 78.6K lbs of releases across 7 chemicals in 2023, and 574.1K lbs in total across its 2019-2023 reporting years. That ranks 1,790 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Nov Quality Tubing is pounds #191 and chemical-count #216 at 574.1K lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Baker Hughes Oilfield Operations Inc.; Utlx Manufacturing LLC; Vallourec Star LP; Vam USA. Similar-scale Primary Metals peers outside Texas: Keymark Corp. of Florida; Zekelman Industries Co DBA Wheatland Tube Co-Council; Aalberts Integrated Piping Systems Americas; Republic Steel-Canton Plant. Other National Oilwell Varco LP sites in this extract: Nov Fiber Glass Systems - Containment Solutions; Fiber Glass Systems LP; Lfm Giddings West; Lfm Waycross. Largest disclosed chemicals by pounds: Methyl isobutyl ketone; Toluene; n-Butyl alcohol; Phenol.
Nov Quality Tubing stamps MID volume with a dominant AIR pathway (99.3% air releases) across 11 chemicals · 4 carcinogen-classified. Cumulative Form-R extract: 574.1K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Keymark Corp. of Florida and Zekelman Industries Co DBA Wheatland Tube Co-Council.
Nov Quality Tubing vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
574K lbs Top 7% higher than 93% 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
Nov Quality Tubing: Methyl isobutyl ketone-led volume
Among the 1,603 Primary Metals facilities in this database, Nov Quality Tubing reports the 197th-largest volume, placing it in the top 12.3% of its sector. Its reported volume is concentrated rather than spread: Methyl isobutyl ketone alone is 91.4% of the total. Carcinogen-classified chemicals make up 91.5% of the reported pounds, not just of the chemical count. Scale peers outside Texas include Keymark Corp. of Florida and Zekelman Industries Co DBA Wheatland Tube Co-Council.
Concentrated means ≥60% of Nov Quality Tubing's pounds in one chemical - here Methyl isobutyl ketone at 91.4%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Nov Quality Tubing's total reported releases fell from 492.2 thousand lb in 2022 to 78.6 thousand lb in 2023, based on EPA TRI filings.
- Nov Quality Tubing's air releases fell from 491.2 thousand lb in 2022 to 77.9 thousand lb in 2023, based on EPA TRI filings.
- Nov Quality Tubing's chemicals reported rose from 4 in 2022 to 7 in 2023, based on EPA TRI filings.
- Nov Quality Tubing's off-site transfers fell from 981 lb in 2022 to 628 lb in 2023, based on EPA TRI filings.
Nov Quality Tubing Form-R facts
Compare this facility
See how Nov Quality Tubing stacks up against nearby facilities and the typical reporter.
287061.8× more than the comparison
11.0× 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 Nov Quality Tubing releases toxic chemicals into the environment. Total: 574.1K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 2365% (3.2K lbs to 78.6K lbs).
Nov Quality Tubing: annual Form-R pounds
MID site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Nov Quality Tubing year-over-year reported totals (increased by 2365% 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: Methyl isobutyl ketone.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 3.2K lbs | 5 |
| 2020 | 1 lbs | 2 |
| 2021 | 213 lbs | 3 |
| 2022 | 492.2K lbs | 4 |
| 2023 | 78.6K lbs | 7 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 4 of 11 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Methyl isobutyl ketone | 524.9K lbs | Carcinogen |
| Toluene | 40.6K lbs | - |
| n-Butyl alcohol | 4.7K lbs | - |
| Phenol | 2.4K lbs | - |
| Lead | 577 lbs | Carcinogen |
| Xylene (mixed isomers) | 564 lbs | - |
| Methyl tert-butyl ether | 250 lbs | - |
| Formaldehyde | 128 lbs | Carcinogen |
| Manganese | 10 lbs | - |
| Nickel | 1 lbs | Carcinogen |
| Ethylene glycol | 0 lbs | - |
Nov Quality Tubing · AIR-pathway site
Nearest TRI Facilities to Nov Quality Tubing
Closest other reporters in Texas - including Baker Hughes Oilfield Operations Inc., Utlx Manufacturing LLC, Vallourec Star LP, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Primary Metals Facilities
Other Primary Metals facilities with similar total release volumes (±80%), outside Texas - e.g. Keymark Corp. of Florida, Zekelman Industries Co DBA Wheatland Tube Co-Council, Aalberts Integrated Piping Systems Americas.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Nov Quality Tubing on cumulative reported pounds (574.1K lbs) and distinct chemical count (11). Release-pound peers include Sonneborn LLC, Continental Tire the Americas LLC, Georgia-Pacific LLC. Chemical-count peers include Puerto Rico Energy LLC - Bayamon Terminal, Lanco Manufacturing Corp, Buckeye Caribbean Terminals LLC (former Scyi). 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.
- Sonneborn LLC Petrolia, PA · Petroleum 574.0K lbs reported
- Continental Tire the Americas LLC Mount Vernon, IL · Plastics and Rubber 573.9K lbs reported
- Georgia-Pacific LLC Taylorsville, MS · Wood Products 574.6K lbs reported
- Potlatchdeltic Land & Lumber LLC St Maries Complex Saint Maries, ID · Wood Products 574.6K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Puerto Rico Energy LLC - Bayamon Terminal Bayamon, PR · Petroleum Bulk Terminals 11 chemicals
- Lanco Manufacturing Corp San Lorenzo, PR · Chemicals 11 chemicals
- Buckeye Caribbean Terminals LLC (former Scyi) Yabucoa, PR · Petroleum Bulk Terminals 11 chemicals
- Limetree Bay Terminals LLC DBA Ocean Point Terminals Christiansted, VI · Petroleum Bulk Terminals 11 chemicals
Other National Oilwell Varco LP Facilities
Same-parent TRI sites ranked by reported releases - including Nov Fiber Glass Systems - Containment Solutions, Fiber Glass Systems LP, Lfm Giddings West.
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 Methyl isobutyl ketone, Toluene, n-Butyl alcohol, Phenol; nearby reporters include Baker Hughes Oilfield Operations Inc.. Nov Quality Tubing stamps MID 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 Nov Quality Tubing TRI extract (MID · AIR · CARC-HEAVY · lead Methyl isobutyl ketone) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Nov Quality Tubing totals are self-reported EPCRA §313 estimates for Houston, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 331210 · Primary Metals. 0.3% of Harris TRI pounds in this extract. Nearest ABS peer: Sonneborn LLC (Δ 153 lbs). Pounds ≠ exposure.
Nov Quality Tubing stamps MID volume · AIR pathway · CARC-HEAVY · lead Methyl isobutyl ketone. 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