EPA TRI Facility · Machinery
Nov Rig Systems West Little York
Houston, TX · Parent: National Oilwell Varco LP
- Total releases
- 13.8K lbs
- Chemicals reported
- 4
- Carcinogens
- 1
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Nov Rig Systems West Little York: how the 13.8K lbs splits
13.8K lbs across all reported pathways
- Off-site Transfers 11.3K lbs 82.2%
- Air Releases 2.5K lbs 17.8%
Nov Rig Systems West Little York's 13.8K lbs Form-R total is OFFSITE - off-site transfers is 82.2% of the bar. Next segment: air releases at 17.8%. Leading chemical by pounds: Nickel.
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-HEAVY
Nov Rig Systems West Little York is an EPA Toxics Release Inventory reporter in Houston, TX, in the machinery sector. It reported 12.5K lbs of releases across 3 chemicals in 2023, and 13.8K lbs in total across its 2019-2023 reporting years. That ranks 9,085 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 West Little York is pounds #880 and chemical-count #806 at 13.8K 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 rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Toshiba International Corp; Dril-Quip Inc; Lark Heat Treating Inc; Afglobal Emmett Road. Similar-scale Machinery peers outside Texas: Copeland Scroll Compressors LP; Caterpillar Paving Products Inc; Caterpillar Work Tools & Services; Danfoss Power Solutions (us) Co. 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: Nickel; Chromium; Manganese; Ethylene glycol.
Nov Rig Systems West Little York stamps LIGHT volume with a dominant OFFSITE pathway (82.2% off-site transfers) across 4 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 13.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Copeland Scroll Compressors LP and Caterpillar Paving Products Inc.
Nov Rig Systems West Little York vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
14K lbs Top 35% higher than 65% 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 West Little York: carcinogen-lbs share on Form-R
Among the 1,186 Machinery facilities in this database, Nov Rig Systems West Little York reports the 176th-largest volume, placing it in the top 14.8% of its sector. Carcinogen-classified chemicals make up 51.9% of the reported pounds, not just of the chemical count. Scale peers outside Texas include Copeland Scroll Compressors LP and Caterpillar Paving Products Inc.
Carcinogen-heavy means ≥50% of pounds (51.9% here), not of chemical count. EPA/IARC classification ≠ site risk.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Nov Rig Systems West Little York's total reported releases rose from 308 lb in 2022 to 12.5 thousand lb in 2023, based on EPA TRI filings.
- Nov Rig Systems West Little York's off-site transfers rose from 1 lb in 2022 to 11.3 thousand lb in 2023, based on EPA TRI filings.
- Nov Rig Systems West Little York's air releases rose from 307 lb in 2022 to 1.2 thousand lb in 2023, based on EPA TRI filings.
Nov Rig Systems West Little York Form-R facts
Compare this facility
See how Nov Rig Systems West Little York stacks up against nearby facilities and the typical reporter.
About the same as the comparison
20% 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 Nov Rig Systems West Little York releases toxic chemicals into the environment. Total: 13.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 1826% (649 lbs to 12.5K lbs).
Nov Rig Systems West Little York: annual Form-R pounds
LIGHT site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2021 0
- 2022 0
- 2023 0
What this shows Nov Rig Systems West Little York year-over-year reported totals (increased by 1826% 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: Nickel.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 649 lbs | 3 |
| 2021 | 339 lbs | 3 |
| 2022 | 308 lbs | 3 |
| 2023 | 12.5K 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 |
|---|---|---|
| Nickel | 7.2K lbs | Carcinogen |
| Chromium | 5.1K lbs | - |
| Manganese | 1.5K lbs | - |
| Ethylene glycol | 0 lbs | - |
Nov Rig Systems West Little York · OFFSITE-pathway site
Nearest TRI Facilities to Nov Rig Systems West Little York
Closest other reporters in Texas - including Toshiba International Corp, Dril-Quip Inc, Lark Heat Treating Inc, 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. Copeland Scroll Compressors LP, Caterpillar Paving Products Inc, Caterpillar Work Tools & Services.
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Nov Rig Systems West Little York on cumulative reported pounds (13.8K lbs) and distinct chemical count (4). Release-pound peers include Huntwood Industries, Schneider Electric USA Inc., John Zink Co 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 Nickel, Chromium, Manganese, Ethylene glycol; nearby reporters include Toshiba International Corp. Nov Rig Systems West Little York stamps LIGHT volume · OFFSITE 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 Rig Systems West Little York TRI extract (LIGHT · OFFSITE · CARC-HEAVY · lead Nickel) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Nov Rig Systems West Little York 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: Huntwood Industries (Δ 10 lbs). Pounds ≠ exposure.
Nov Rig Systems West Little York stamps LIGHT volume · OFFSITE pathway · CARC-HEAVY · lead Nickel. 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