Clean Water Act discharge permit · NPDES TX0078646
SCHLUMBERGER ROSHARON COMPLETIONS, Rosharon, TX: NPDES TX0078646 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 39Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
SCHLUMBERGER ROSHARON COMPLETIONS, held by SCHLUMBERGER TECHNOLOGY CORPORATION, holds NPDES permit TX0078646, which discharges to Drainage Ditch, Bcdd 319-01-00, Austin Bayou. EPA’s file records it issued April 1, 2019 and expiring March 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | SCHLUMBERGER ROSHARON COMPLETIONS |
|---|---|
| Permittee as filed | SCHLUMBERGER TECHNOLOGY CORPORATION |
| NPDES ID | TX0078646 |
| 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 | April 1, 2019 |
| Expiration date | March 31, 2024 |
| Address | Rosharon, TX 77583 |
| Receiving water | DRAINAGE DITCH, BCDD 319-01-00, AUSTIN BAYOU |
| Subwatershed | Austin Bayou (HUC 120402050300) |
| SIC | 2892 – Explosives |
| Other EPA IDs (FRS) | RCRA handler TXD000750349 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 39Pollutants on file
- 39Under a numeric limit
- 38With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Copper, total [as Cu] | 2 | 35 | 27 | July 31, 2026 | 190% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 36 | 12 | April 30, 2014 | 1,490% over the limit |
| Solids, total suspended | 3 | 23 | 11 | February 28, 2021 | 2,187% over the limit |
| E. coli | 2 | 5 | 5 | March 31, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 8 | 4 | December 31, 2016 | 37% over the limit |
| Oxygen, dissolved [DO] | 1 | 6 | 2 | October 31, 2009 | 20% over the limit |
| pH | 3 | 18 | 1 | June 30, 2026 | |
| BOD, 5-day, 20 deg. C | 3 | 13 | 1 | March 31, 2008 | 1,898% over the limit |
| Chlorine, total residual | 2 | 9 | 0 | ||
| Arsenic, dry weight | 5 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 5 | 0 | ||
| Selenium, dry weight | 3 | 3 | 0 | ||
| Copper, dry weight | 3 | 3 | 0 | ||
| Cadmium, dry weight | 3 | 3 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 3 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 3 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 3 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 3 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 3 | 0 | ||
| Nickel, total [as Ni] | 2 | 2 | 0 | ||
| Level of pathogen requirements achieved | 2 | 2 | 0 | ||
| Description of pathogen option used | 2 | 2 | 0 | ||
| Vector attraction reduction alternative used | 2 | 2 | 0 | ||
| Fecal coliform | 1 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 1 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 1 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 1 | 0 | ||
| Annual amt of sludge incinerated | 1 | 1 | 0 | ||
| Annual sludge production, total | 1 | 1 | 0 | ||
| Annual amount of sludge land applied | 1 | 1 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 1 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 1 | 0 | ||
| Annual amt sludge transported interstate | 1 | 1 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 1 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 1 | 0 | ||
| Boundary areas | 1 | 1 | 0 | ||
| Salmonella | 1 | 1 | 0 | ||
| Pollutant table from 503.13 | 1 | 1 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 27, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0078646.
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
| Date | What EPA recorded | Agency |
|---|---|---|
| August 10, 2026 | Agency Enforcement Review | State |
| June 4, 2026 | Phone Call/ EMAIL | State |
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0078646 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.