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National Oilwell Varco

Surface Water releases 2017 (lbs): 173
POTW (sewerage plant) transfers 2017 (lbs): 1
Pounds released post-treatment 2017 (lbs): 173
Total Surface Water and POTW Toxic Hazard 2017: 4,700,161

This company is rank 22 on the Toxic 100 Air list.
This company has information in PERI's Greenhouse database.

Facilities displayed below: (
display chemicals at facilities) (display chemicals)
(Click on column headers to re-sort table: current sort is by pounds released post-treatment.)
(Links on facility names lead to full TRI reports. Links on cities lead to Mapquest maps.)
Split *
GRANT PRIDECO NAVASOTA TX 54 1 55 2,380,523 50.65%
NOV QUALITY TUBING & NOV TUBOSCOPE SHELDON NORTH HOUSTON TX 43 0 43 765,000 16.28%
NOV XL SYSTEMS BEAUMONT BEAUMONT TX 43 0 43 688 0.01%
VALLOUREC DRILLING PRODUCTS USA INC HOUSTON TX 18 0 18 1,553,092 33.04%
NOV DOWNHOLE CONROE CONROE TX 16 0 16 857 0.02%
NOV MONOFLO BREEN & BREEN ISE HOUSTON TX 0 0 0 0 0.00%
NOV RIG SYSTEMS SERVICE CENTER BAMMEL HOUSTON TX 0 0 0 0 0.00%
NOV TEXAS OIL TOOLS/CTES CONROE CONROE TX 0 0 0 0 0.00%
NOV RMES TOMBALL TOMBALL TX 0 0 0 0 0.00%
NOV RIG SYSTEMS GALENA PARK GALENA PARK TX 0 0 0 0 0.00%
NOV ROLLIGON ANDERSON ANDERSON TX 0 0 0 0 0.00%
NOV OREGON STREET ODESSA TX 0 0 0 0 0.00%
AMERON INTERNATIONAL (LINING GROUP) BREA CA 0 0 0 0 0.00%
NOV AMERON FILLMORE CONCRETE POLE MANUFACTURING FILLMORE CA 0 0 0 0 0.00%
NOV COATING HOUSTON HOUSTON TX 0 0 0 0 0.00%
NOV RIG SYSTEMS RUBBER PLANT & CONTROLS BUILDING HOUSTON TX 0 0 0 0 0.00%
NOV RIG SYSTEMS WEST LITTLE YORK HOUSTON TX 0 0 0 0 0.00%
NATIONAL OILWELL VARCO LP DAYTON OH 0 0 0 0 0.00%
NOV TUBOSCOPE AMELIA NORTH & SOUTH COATING & INSPECTION MORGAN CITY LA 0 0 0 0 0.00%
FIBER GLASS SYSTEMS LITTLE ROCK AR 0 0 0 0 0.00%
NOV HYDRA RIG DUNCAN DUNCAN OK 0 0 0 0 0.00%
FIBER GLASS SYSTEMS SAND SPRINGS OK 0 0 0 0 0.00%
NOV AMERON TULSA POLE PRODUCTS WELDING & FABRICATION TULSA OK 0 0 0 0 0.00%
NATIONAL OILWELL VARCO/TULSA MULTIPLEX TULSA OK 0 0 0 0 0.00%
NATIONAL OILWELL VARCO MCALESTER WORKS MCALESTER OK 0 0 0 0 0.00%
NOV FIBER GLASS SYSTEMS-BURKBURNETT BURKBURNETT TX 0 0 0 0 0.00%
AMERON WATER TRANSMISSION GROUP TRACY CA 0 0 0 0 0.00%

Toxic hazard: Pounds of direct releases to surface water and estimated releases from transfers to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2017, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project. For details, see technical notes.

Quantity of toxic surface water releases and POTW transfers: Pounds of toxic chemicals released directly to surface water at each TRI facility or transferred off-site to a POTW, without weighting for toxicity or population.

Quantity of toxic post-treatment releases: Pounds of toxic chemicals released directly to surface water plus released after treatment at POTW's.

* Split: if 50% appears in this column, then the facility's releases have been split among two 50/50% ownership parent companies for their parent company data, although the full pounds and hazard are displayed here.

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