Clean Water Act discharge permit · NPDES TX0126292

OFFSHORE OPERATIONS HOUSTON FACILITY, Houston, TX: NPDES TX0126292 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
15Pollutants under a numeric limit
9Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

OFFSHORE OPERATIONS HOUSTON FACILITY, held by US STEEL OILWELL SERVICES LLC, holds NPDES permit TX0126292, which discharges to Greens Bayou Trib;Greens Bayou. EPA’s file records it issued March 5, 2018 and expiring December 1, 2022.

OFFSHORE OPERATIONS HOUSTON FACILITY, Houston, Texas: Individual permit TX0126292, held by US STEEL OILWELL SERVICES LLC; Administratively continued (past its expiration date and still in force until reissued); issued March 5, 2018, term to December 1, 2022; discharges to GREENS BAYOU TRIB;GREENS BAYOU.

pH: 4 limits, 210 violations of any kind, 34 effluent exceedances, latest October 31, 2006.
Oil & Grease: 4 limits, 210 violations of any kind, 12 effluent exceedances, latest March 31, 2008, largest 267% over the limit.
Copper, total [as Cu]: 4 limits, 36 violations of any kind, 12 effluent exceedances, latest November 30, 2012, largest 181% over the limit.
Oxygen demand, chem. [high level] [COD]: 2 limits, 105 violations of any kind, 11 effluent exceedances, latest November 30, 2012, largest 222% over the limit.
Solids, total suspended: 2 limits, 29 violations of any kind, 7 effluent exceedances, latest April 30, 2008, largest 1,252% over the limit.
Chlorine, total residual: 0 limits, 29 violations of any kind, 5 effluent exceedances, latest May 31, 2006, largest 130% over the limit.
Zinc, total [as Zn]: 4 limits, 31 violations of any kind, 3 effluent exceedances, latest February 28, 2006, largest 36% over the limit.
Organics, total toxic [TTO]: 1 limit, 25 violations of any kind, 3 effluent exceedances, latest May 31, 2005, largest 171% over the limit.
Silver, total [as Ag]: 4 limits, 32 violations of any kind, 2 effluent exceedances, latest March 31, 2005, largest 695% over the limit.
Flow, in conduit or thru treatment plant: 4 limits, 194 violations of any kind, 0 effluent exceedances.
Cadmium, total [as Cd]: 4 limits, 30 violations of any kind, 0 effluent exceedances.
Nickel, total [as Ni]: 4 limits, 28 violations of any kind, 0 effluent exceedances.
Cyanide, total [as CN]: 2 limits, 28 violations of any kind, 0 effluent exceedances.
Chromium, total [as Cr]: 2 limits, 28 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 4 limits, 26 violations of any kind, 0 effluent exceedances.
Cyanide, free [amenable to chlorination]: 2 limits, 0 violations of any kind, 0 effluent exceedances.

OFFSHORE OPERATIONS HOUSTON FACILITY among its neighbors

EPA’s permit file holds 44 discharge permits in the Middle Greens Bayou subwatershed (HUC 120401040605), TX0126292 among them. Its county holds 4,455, 195 of them major permits; TX0126292 is a minor permit.

Other permits in the Middle Greens Bayou subwatershed (HUC 120401040605)

ACC HOU - WINFIELD, Houston: TXR05GQ78, minor permit, permit term to August 13, 2026
ACE FABRICATORS TRUCK YARD, Houston: TXR05FO58, minor permit, permit term to August 13, 2026
ASM - WINFIELD, Houston: TXR05GQ79, minor permit, permit term to August 13, 2026
CITY OF BLOOMING GROVE WWTP, Blooming Grove: TX0075418, minor permit, discharging to UNNAMED TIBUTARY OF RUSH CREEK, permit term to September 1, 2021
CS CONCRETE READY MIX, Houston: TXG113957, minor permit, permit term to November 6, 2026
DERICHEBOURG RECYCLING MOUNT HOUSTON YARD, Houston: TXR1559ML, minor permit, discharging to UNNAMED TRIBUTARY OF GREENS BAYOU, permit term to March 4, 2028
DR KING R DAVIS JR EDUCATIONAL SUPPORT CENTER, Houston: TXR1547UV, minor permit, discharging to GREENS BAYOU, permit term to March 4, 2028
DRAINAGE IMPROV IN PARKWAY MOBILE HOMES SUB FOR HCO PCT1, Houston: TXR1566UY, minor permit, discharging to GREENS BAYOU ABOVE TIDAL, permit term to March 4, 2028
EAST MOUNT HOUSTON MHP WWTP, Houston: TX0094935, minor permit, discharging to HCFCDD P126-00-00, GREENS BAYOU ABOVE TIDAL, permit term to December 1, 2022
EAST MOUNT HOUSTON YARD, Houston: TXR05GG13, minor permit, permit term to August 13, 2026

Identity

Facility as filed	OFFSHORE OPERATIONS HOUSTON FACILITY
Permittee as filed	US STEEL OILWELL SERVICES LLC
NPDES ID	TX0126292
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	March 5, 2018
Expiration date	December 1, 2022
Address	Houston, TX 77050
Receiving water	GREENS BAYOU TRIB;GREENS BAYOU
Subwatershed	Middle Greens Bayou (HUC 120401040605)

Effluent limits and exceedances

16Pollutants on file
15Under a numeric limit
15With a violation of any kind
9With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
pH	4	210	34	October 31, 2006
Oil & Grease	4	210	12	March 31, 2008	267% over the limit
Copper, total [as Cu]	4	36	12	November 30, 2012	181% over the limit
Oxygen demand, chem. [high level] [COD]	2	105	11	November 30, 2012	222% over the limit
Solids, total suspended	2	29	7	April 30, 2008	1,252% over the limit
Chlorine, total residual	0	29	5	May 31, 2006	130% over the limit
Zinc, total [as Zn]	4	31	3	February 28, 2006	36% over the limit
Organics, total toxic [TTO]	1	25	3	May 31, 2005	171% over the limit
Silver, total [as Ag]	4	32	2	March 31, 2005	695% over the limit
Flow, in conduit or thru treatment plant	4	194	0
Cadmium, total [as Cd]	4	30	0
Nickel, total [as Ni]	4	28	0
Cyanide, total [as CN]	2	28	0
Chromium, total [as Cr]	2	28	0
Lead, total [as Pb]	4	26	0
Cyanide, free [amenable to chlorination]	2	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0126292.

Inspections

EPA’s inspection file holds no inspection for NPDES TX0126292.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TX0126292.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers the Clean Water Act discharge permit NPDES TX0126292 for OFFSHORE OPERATIONS HOUSTON FACILITY in Houston, TX, held by US STEEL OILWELL SERVICES LLC, with a status of administratively continued and a discharger class of Minor. The file lists 16 pollutants on record, 15 of them under a numeric limit, and 9 with an effluent exceedance, with the permit's issue and expiration dates as stood when the record was loaded.