EPA · discharge permits by pollutant and parameter
Screen Area Blockage
- 20Permits carrying a limit
- 0With a recorded exceedance
- 1States
EPA identifies this parameter by code 51728. A permit listed here carries a numeric limit on screen area blockage in its discharge; an exceedance is a monitoring result above that limit, as reported to EPA.
By state
- Texas17
By watershed
The subbasins of the national Watershed Boundary Dataset carrying the most permits with a limit on screen area blockage.
Other pollutants
- Oil based fluids, non-aqueous based drilling fluids and cuttings 15
- Whole Effluent Toxicity [WET] - C. dubia 119
- Whole Effluent Toxicity [WET] - D. pulex 25
- Whole Effluent Toxicity [WET] - M. beryllina 37
- Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) 42
- Whole Effluent Toxicity [WET] - P. promelas 151
- Precipitation volume 331
- Fish feed used efficiency 12
- Flow, in conduit or thru treatment plant 45
- Critical Dilution 116
- Intake Velocity Excusions 20
- Fish/Shellfish Impinged 20
- Poly[hexamethylenebiguanide] hydrochloride 16
- Total Production - volume 4
- Iron, ferrous - present 3
- Volume, total 72
- Percent Base Saturation 11
- Hydroxide 11
- Radium, total 4
- Benzene, calculated limit 8
Permits
| Permit holder | NPDES ID | City | State | Program | Discharger | Receiving water |
|---|---|---|---|---|---|---|
| PACIFIC DRILLING OPERATIONS, INC. | GMG290544 | HOUSTON | TX | Minor | City of Houston-Buffalo Bayou | |
| ENSCO OFFSHORE COMPANY (MODU) | GMG290394 | HOUSTON | TX | Minor | Spring Branch-Buffalo Bayou | |
| SEVAN DRILLING | GMG290563 | HOUSTON | TX | Minor | Spring Branch-Buffalo Bayou | |
| BENNU OIL & GAS, LLC | GMG290546 | HOUSTON | TX | Minor | City of Houston-Buffalo Bayou | |
| ATWOOD OCEANICS, INC. | GMG290522 | HOUSTON | TX | Minor | Spring Branch-Buffalo Bayou | |
| STENA DRILLING LIMITED | GMG290543 | ABERDEEN | AB | Minor | ||
| DAUPHIN ISLAND GATHERING PART. | GMG290305 | HOUSTON | TX | Minor | ||
| ROWAN COMPANIES, INC. | GMG290571 | HOUSTON | TX | Minor | City of Houston-Buffalo Bayou | |
| APACHE CORPORATION | GMG290073 | HOUSTON | TX | Minor | GULF OF MEXICO | |
| PETROBRAS AMERICA, INC. | GMG290029 | HOUSTON | TX | Minor | GULF OF MEXICO | |
| FIELDWOOD ENERGY LLC | GMG290541 | LAFAYETTE | LA | Minor | Anselm Coulee-Vermilion River | |
| MURPHY EXPL & PROD CO | GMG290089 | HOUSTON | TX | Minor | GULF OF MEXICO | |
| EPL OIL & GAS, INC. | GMG290208 | NEW ORLEANS | LA | Minor | Metairie Canal-Canal No 2 | |
| COBALT INTERNATIONAL ENERGY LP | GMG290375 | HOUSTON | TX | Minor | Spring Branch-Buffalo Bayou | |
| EQUINOR GULF OF MEXICO LLC | GMG290350 | HOUSTON | TX | Minor | Spring Branch-Buffalo Bayou | |
| HERCULES OFFSHORE | GMG290512 | HOUSTON | TX | Minor | Country Club Bayou-Brays Bayou | |
| MAERSK VALIANT | GMG290567 | HOUSTON | TX | Minor | Spring Branch-Buffalo Bayou | |
| NOBLE ENERGY, INC. | GMG290096 | HOUSTON | TX | Minor | GULF OF MEXICO | |
| NORTHSTAR OFFSHORE GROUP, LLC | GMG290502 | HOUSTON | TX | Minor | Country Club Bayou-Brays Bayou | |
| MAERSK VIKING LLC | GMG290566 | HOUSTON | TX | Minor |
What this page shows
This page covers Clean Water Act discharge permits with limits on the pollutant parameter Screen Area Blockage. It lists 20 permits with a limit on this parameter and 11 permits with a recorded violation of this parameter.