NPDES permit GM0000002 · Minor NON-POTW · effective, expires 2029-05-31 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-08-31.
Reports are due about 29 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Deck drainage, free oil | MO TOTAL | <= 0 d | all year |
| 003 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 003 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 003 | Chlorine, total residual | MO MIN | >= 1 mg/L | all year |
| 005 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 005 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 005 | Free Oil Visual Sheen | MO TOTAL | <= 0 d | all year |
| 006 | Cadmium, total [as Cd] | MO AVG | <= 3 mg/kg | all year |
| 006 | Cadmium, total [as Cd] | DAILY MX | <= 3 mg/kg | all year |
| 006 | Drilling fluid, end of well, 96-hr LC50 | DAILY MN | >= 30000 ppm | all year |
| 006 | Drilling fluid, toxicity | DAILY MN | >= 30000 ppm | all year |
| 006 | Drilling fluid, toxicity | MO AV MN | >= 30000 ppm | all year |
| 006 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 006 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 006 | Free Oil Visual Sheen | MO TOTAL | <= 0 d | all year |
| 006 | Mercury, total [as Hg] | MO AVG | <= 1 mg/kg | all year |
| 006 | Mercury, total [as Hg] | DAILY MX | <= 1 mg/kg | all year |
| 006 | Drilling fluids, discharge rate | MR | <= 1000 bbl/hr | all year |
| 007 | Cadmium, total [as Cd] | MO AVG | <= 3 mg/kg | all year |
| 007 | Cadmium, total [as Cd] | DAILY MX | <= 3 mg/kg | all year |
| 007 | Drilling fluid, end of well, 96-hr LC50 | DAILY MN | >= 30000 ppm | all year |
| 007 | Drilling fluid, toxicity | DAILY MN | >= 30000 ppm | all year |
| 007 | Drilling fluid, toxicity | MO AV MN | >= 30000 ppm | all year |
| 007 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 007 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 007 | Free Oil Visual Sheen | MO TOTAL | <= 0 d | all year |
| 007 | Mercury, total [as Hg] | MO AVG | <= 1 mg/kg | all year |
| 007 | Mercury, total [as Hg] | DAILY MX | <= 1 mg/kg | all year |
| 007 | Drilling fluids, discharge rate | MR | <= 1000 bbl/hr | all year |
| 008 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 008 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 008 | Free Oil Visual Sheen | MO TOTAL | <= 0 d | all year |
| 009 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 009 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 009 | Free Oil Visual Sheen | MO TOTAL | <= 0 d | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states