EPA TRI Facility · Machinery
Nov Rig Systems Fm 529
Houston, TX · Parent: National Oilwell Varco LP
- Total releases
- 1.1K lbs
- Chemicals reported
- 4
- Carcinogens
- 1
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Nov Rig Systems Fm 529: how the 1.1K lbs splits
1.1K lbs across all reported pathways
- Off-site Transfers 980 lbs 89.9%
- Air Releases 110 lbs 10.1%
Nov Rig Systems Fm 529's 1.1K lbs Form-R total is OFFSITE - off-site transfers is 89.9% of the bar. Next segment: air releases at 10.1%. Leading chemical by pounds: Ethylene glycol.
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 OFFSITE pathway CARC-LEAN
Nov Rig Systems Fm 529 is an EPA Toxics Release Inventory reporter in Houston, TX, in the machinery sector. It reported 340 lbs of releases across 3 chemicals in 2023, and 1.1K lbs in total across its 2019-2023 reporting years. That ranks 13,733 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 Rig Systems Fm 529 is pounds #1291 and chemical-count #864 at 1.1K 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). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Heidelberg Materials - Jersey Village Rmc; Sika Mbcc US LLC; Alloy & Stainless Fasteners; Jersey Village Plant. Similar-scale Machinery peers outside Texas: Ppc a Belden Co; Electrolux Professional Group - Weidman; Xylem Water Systems USA LLC; Fisher Engineering. Other National Oilwell Varco LP sites in this extract: Nov Fiber Glass Systems - Containment Solutions; Nov Quality Tubing; Fiber Glass Systems LP; Lfm Giddings West. Largest disclosed chemicals by pounds: Ethylene glycol; Chromium; Nickel; Copper.
Nov Rig Systems Fm 529 stamps LIGHT volume with a dominant OFFSITE pathway (89.9% off-site transfers) across 4 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 1.1K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Ppc a Belden Co and Electrolux Professional Group - Weidman.
Nov Rig Systems Fm 529 vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
1.1K lbs 47th percentile higher than 47% 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 Rig Systems Fm 529: Ethylene glycol-led volume
Among the 1,186 Machinery facilities in this database, Nov Rig Systems Fm 529 reports the 399th-largest volume (1.1K lbs). Its reported volume is concentrated rather than spread: Ethylene glycol alone is 89.9% of the total. Scale peers outside Texas include Ppc a Belden Co and Electrolux Professional Group - Weidman.
Concentrated means ≥60% of Nov Rig Systems Fm 529's pounds in one chemical - here Ethylene glycol at 89.9%. Not a toxicity score.
Nov Rig Systems Fm 529 Form-R facts
Compare this facility
See how Nov Rig Systems Fm 529 stacks up against nearby facilities and the typical reporter.
16647.8× more than the comparison
2.0× 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 Rig Systems Fm 529 releases toxic chemicals into the environment. Total: 1.1K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 6700% (5 lbs to 340 lbs).
Nov Rig Systems Fm 529: annual Form-R pounds
LIGHT site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2023 0
What this shows Nov Rig Systems Fm 529 year-over-year reported totals (increased by 6700% 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: Ethylene glycol.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 5 lbs | 1 |
| 2020 | 702 lbs | 1 |
| 2021 | 43 lbs | 1 |
| 2023 | 340 lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 4 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Ethylene glycol | 980 lbs | - |
| Chromium | 53 lbs | - |
| Nickel | 52 lbs | Carcinogen |
| Copper | 5 lbs | - |
Nov Rig Systems Fm 529 · OFFSITE-pathway site
Nearest TRI Facilities to Nov Rig Systems Fm 529
Closest other reporters in Texas - including Heidelberg Materials - Jersey Village Rmc, Sika Mbcc US LLC, Alloy & Stainless Fasteners, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Machinery Facilities
Other Machinery facilities with similar total release volumes (±80%), outside Texas - e.g. Ppc a Belden Co, Electrolux Professional Group - Weidman, Xylem Water Systems USA LLC.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Nov Rig Systems Fm 529 on cumulative reported pounds (1.1K lbs) and distinct chemical count (4). Release-pound peers include Proform Finishing Products - Jasper, Biogen Rtp, Prochemicals LLC. Chemical-count peers include Hamilton Sundstrand de Puerto Rico Inc., Abb Installation Products Caribe LLC, Solenis LLC. 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).
- Hamilton Sundstrand de Puerto Rico Inc. Santa Isabel, PR · Transportation Equipment 4 chemicals
- Abb Installation Products Caribe LLC Vega Baja, PR · Electrical Equipment 4 chemicals
- Solenis LLC Chicopee, MA · Chemicals 4 chemicals
- Adhesive Applications Inc. - O'Neill St Easthampton Easthampton, MA · Miscellaneous Manufacturing 4 chemicals
Other National Oilwell Varco LP Facilities
Same-parent TRI sites ranked by reported releases - including Nov Fiber Glass Systems - Containment Solutions, Nov Quality Tubing, Fiber Glass Systems LP.
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 Ethylene glycol, Chromium, Nickel, Copper; nearby reporters include Heidelberg Materials - Jersey Village Rmc. Nov Rig Systems Fm 529 stamps LIGHT volume · OFFSITE pathway · CARC-LEAN 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 Rig Systems Fm 529 TRI extract (LIGHT · OFFSITE · CARC-LEAN · lead Ethylene glycol) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Nov Rig Systems Fm 529 totals are self-reported EPCRA §313 estimates for Houston, TX, latest year 2023. Form-R rows span 2019–2023 (4 years). NAICS 333132 · Machinery. 0.0% of Harris TRI pounds in this extract. Nearest ABS peer: Proform Finishing Products - Jasper (Δ 0 lbs). Pounds ≠ exposure.
Nov Rig Systems Fm 529 stamps LIGHT volume · OFFSITE pathway · CARC-LEAN · lead Ethylene glycol. 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