NPDES permit MS0001481 · Major NON-POTW · administratively continued, expires 2026-08-31 · EPA's file as of 2026-09-19
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This permit expired on 2026-08-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | DAILY MX | <= 90 deg F | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 5785 lb/d | all year |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 11330 lb/d | all year |
| 001 | pH | MINIMUM | >= 6 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | MO AVG | <= 5065 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 7913 lb/d | all year |
| 001 | Oil & Grease | MO AVG | report only | all year |
| 001 | Oil & Grease | DAILY MX | report only | all year |
| 001 | Oil & Grease | MO AVG | <= 1898 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 3611 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 3.16 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 20.94 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 202.4 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 1341.23 lb/d | all year |
| 001 | Sulfide, total [as S] | MO AVG | report only | all year |
| 001 | Sulfide, total [as S] | DAILY MX | report only | all year |
| 001 | Sulfide, total [as S] | MO AVG | <= 31 lb/d | all year |
| 001 | Sulfide, total [as S] | DAILY MX | <= 70 lb/d | all year |
| 001 | Chromium, hexavalent [as Cr] | MO AVG | report only | all year |
| 001 | Chromium, hexavalent [as Cr] | DAILY MX | report only | all year |
| 001 | Chromium, hexavalent [as Cr] | MO AVG | <= 2.47 lb/d | all year |
| 001 | Chromium, hexavalent [as Cr] | DAILY MX | <= 5.54 lb/d | all year |
| 001 | Nickel, total recoverable | MO AVG | <= .11 mg/L | all year |
| 001 | Nickel, total recoverable | DAILY MX | <= 1 mg/L | all year |
| 001 | Nickel, total recoverable | MO AVG | <= 6 lb/d | all year |
| 001 | Nickel, total recoverable | DAILY MX | <= 58 lb/d | all year |
| 001 | Chromium, total recoverable | MO AVG | report only | all year |
| 001 | Chromium, total recoverable | DAILY MX | report only | all year |
| 001 | Chromium, total recoverable | MO AVG | <= 28 lb/d | all year |
| 001 | Chromium, total recoverable | DAILY MX | <= 82 lb/d | all year |
| 001 | Copper, total recoverable | MO AVG | <= .0384 mg/L | all year |
| 001 | Copper, total recoverable | DAILY MX | <= .0595 mg/L | all year |
| 001 | Copper, total recoverable | MO AVG | <= 2.46 lb/d | all year |
| 001 | Copper, total recoverable | DAILY MX | <= 3.811 lb/d | all year |
| 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 | Phenolic compounds, total | MO AVG | report only | all year |
| 001 | Phenolic compounds, total | DAILY MX | report only | all year |
| 001 | Phenolic compounds, total | MO AVG | <= 24 lb/d | all year |
| 001 | Phenolic compounds, total | DAILY MX | <= 84 lb/d | all year |
| 001 | Chemical Oxygen Demand [COD] | MO AVG | report only | all year |
| 001 | Chemical Oxygen Demand [COD] | DAILY MX | report only | all year |
| 001 | Chemical Oxygen Demand [COD] | MO AVG | <= 41814 lb/d | all year |
| 001 | Chemical Oxygen Demand [COD] | DAILY MX | <= 80634 lb/d | all year |
| 002 | pH | MINIMUM | >= 6 SU | all year |
| 002 | pH | MAXIMUM | <= 9 SU | all year |
| 002 | Oil & Grease | MO AVG | report only | all year |
| 002 | Oil & Grease | MO MAX | <= 15 mg/L | all year |
| 002 | Carbon, tot organic [TOC] | MO AVG | report only | all year |
| 002 | Carbon, tot organic [TOC] | MO MAX | <= 35 mg/L | all year |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | MO MAX | report only | all year |
| 003 | pH | MINIMUM | >= 6 SU | all year |
| 003 | pH | MAXIMUM | <= 9 SU | all year |
| 003 | Oil & Grease | MO AVG | report only | all year |
| 003 | Oil & Grease | MO MAX | <= 15 mg/L | all year |
| 003 | Carbon, tot organic [TOC] | MO AVG | report only | all year |
| 003 | Carbon, tot organic [TOC] | MO MAX | <= 35 mg/L | all year |
| 003 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 003 | Flow, in conduit or thru treatment plant | MO MAX | report only | all year |
| 005 | pH | MINIMUM | >= 6 SU | all year |
| 005 | pH | MAXIMUM | <= 9 SU | all year |
| 005 | Oil & Grease | MO AVG | report only | all year |
| 005 | Oil & Grease | MO MAX | <= 15 mg/L | all year |
| 005 | Carbon, tot organic [TOC] | MO AVG | report only | all year |
| 005 | Carbon, tot organic [TOC] | MO MAX | <= 35 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 | MO MAX | report only | all year |
| 006 | Turbidity | DAILY MX | <= 50 NTU | all year |
| 006 | pH | MINIMUM | >= 6 SU | all year |
| 006 | pH | MAXIMUM | <= 9 SU | all year |
| 006 | Flow, in conduit or thru treatment plant | QRTR AVG | report only | all year |
| 006 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 007 | pH | MINIMUM | >= 6 SU | all year |
| 007 | pH | MAXIMUM | <= 9 SU | all year |
| 007 | Oil & Grease | MO AVG | report only | all year |
| 007 | Oil & Grease | MO MAX | <= 15 mg/L | all year |
| 007 | Carbon, tot organic [TOC] | MO AVG | report only | all year |
| 007 | Carbon, tot organic [TOC] | MO MAX | <= 35 mg/L | all year |
| 007 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 007 | Flow, in conduit or thru treatment plant | MO MAX | report only | all year |
| 011 | pH | MINIMUM | >= 6 SU | all year |
| 011 | pH | MAXIMUM | <= 9 SU | all year |
| 011 | Oil & Grease | MO AVG | report only | all year |
| 011 | Oil & Grease | MO MAX | <= 15 mg/L | all year |
| 011 | Carbon, tot organic [TOC] | MO AVG | report only | all year |
| 011 | Carbon, tot organic [TOC] | MO MAX | <= 35 mg/L | all year |
| 011 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 011 | Flow, in conduit or thru treatment plant | DAILY MX | report only | 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