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In Mississippi, for BOD, 5-day, 20 deg. C: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Nov 21, 2026 and Sep 29, 2029 (24 limits); 0 of them reported a median above that limit between Oct 1, 2025 and Sep 30, 2026. EPA's file of Oct 16, 2026.
By state: all · GA 7 · MS 7 · SC 7 · NJ 3 · NY 3 · LA 2 · PA 2 · CO 1 · KS 1 · MD 1 · UT 1
By pollutant: all · Nitrogen, ammonia total [as N] 63 · BOD, 5-day, 20 deg. C 7 · Chlorine, total residual 3 · Nitrogen, total [as N] 2 · Phosphorus, total [as P] 2 · Chlorine, free available 1 · E. coli 1
| Plant | Permit | State | Type | Design flow | Parameter | New limit | Effective | Today's median | × limit |
|---|---|---|---|---|---|---|---|---|---|
| LAMBERT POTW | MS0020231 | MS | Sewage plant | .75 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 50 lb/d, tighter | Nov 21, 2026 | under 3 values | — |
| LAMBERT POTW | MS0020231 | MS | Sewage plant | .75 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 8 mg/L, tighter | Nov 21, 2026 | under 3 values | — |
| LAMBERT POTW | MS0020231 | MS | Sewage plant | .75 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 75 lb/d, tighter | Nov 21, 2026 | under 3 values | — |
| LAMBERT POTW | MS0020231 | MS | Sewage plant | .75 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 12 mg/L, tighter | Nov 21, 2026 | under 3 values | — |
| FLORENCE POTW | MS0025275 | MS | Sewage plant | .5 MGD | BOD, 5-day, 20 deg. C | monthly average 5 mg/L, tighter | Jan 5, 2027 | 4 mg/L (3 values) | 0.8× |
| FLORENCE POTW | MS0025275 | MS | Sewage plant | .5 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 7.5 mg/L, tighter | Jan 5, 2027 | 4 mg/L (3 values) | 0.533× |
| CLINTON POTW, LOVETT | MS0023230 | MS | Sewage plant | .276 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 7.1 mg/L, tighter | Apr 29, 2027 | 2 mg/L (12 values) | 0.282× |
| CLINTON POTW, LOVETT | MS0023230 | MS | Sewage plant | .276 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 10.7 mg/L, tighter | Apr 29, 2027 | 2 mg/L (12 values) | 0.187× |
| SHELBY POTW | MS0025089 | MS | Sewage plant | .5 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 17 mg/L, tighter | Nov 8, 2027 | under 3 values | — |
| SHELBY POTW | MS0025089 | MS | Sewage plant | .5 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 70.8 lb/d, tighter | Nov 8, 2027 | under 3 values | — |
| SHELBY POTW | MS0025089 | MS | Sewage plant | .5 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 25.5 mg/L, tighter | Nov 8, 2027 | under 3 values | — |
| SHELBY POTW | MS0025089 | MS | Sewage plant | .5 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 106 lb/d, tighter | Nov 8, 2027 | under 3 values | — |
| COLDWATER POTW, NORTH | MS0026964 | MS | Sewage plant | .135 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 5 mg/L, tighter | Dec 2, 2027 | under 3 values | — |
| COLDWATER POTW, NORTH | MS0026964 | MS | Sewage plant | .135 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 5.6 lb/d, tighter | Dec 2, 2027 | under 3 values | — |
| COLDWATER POTW, NORTH | MS0026964 | MS | Sewage plant | .135 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 8.4 lb/d, tighter | Dec 2, 2027 | under 3 values | — |
| COLDWATER POTW, NORTH | MS0026964 | MS | Sewage plant | .135 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 7.5 mg/L, tighter | Dec 2, 2027 | under 3 values | — |
| SLEDGE POTW | MS0021016 | MS | Sewage plant | .22 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 17 mg/L, tighter | Mar 17, 2028 | under 3 values | — |
| SLEDGE POTW | MS0021016 | MS | Sewage plant | .22 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 31.2 lb/d, tighter | Mar 17, 2028 | under 3 values | — |
| SLEDGE POTW | MS0021016 | MS | Sewage plant | .22 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 25.5 mg/L, tighter | Mar 17, 2028 | under 3 values | — |
| SLEDGE POTW | MS0021016 | MS | Sewage plant | .22 MGD | BOD, 5-day, 20 deg. C | maximum weekly average 46.8 lb/d, tighter | Mar 17, 2028 | under 3 values | — |
| WASTE WATER SOLUTIOINS LLC, THE MEADOWS SUBDIVISION | MS0055514 | MS | Industrial | .038 MGD | BOD, 5-day, 20 deg. C | daily maximum 37.5 mg/L, tighter | Sep 29, 2029 | under 3 values | — |
| WASTE WATER SOLUTIOINS LLC, THE MEADOWS SUBDIVISION | MS0055514 | MS | Industrial | .038 MGD | BOD, 5-day, 20 deg. C | daily maximum 11.8 lb/d, tighter | Sep 29, 2029 | under 3 values | — |
| WASTE WATER SOLUTIOINS LLC, THE MEADOWS SUBDIVISION | MS0055514 | MS | Industrial | .038 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 25 mg/L, tighter | Sep 29, 2029 | under 3 values | — |
| WASTE WATER SOLUTIOINS LLC, THE MEADOWS SUBDIVISION | MS0055514 | MS | Industrial | .038 MGD | BOD, 5-day, 20 deg. C | maximum monthly average 7.9 lb/d, tighter | Sep 29, 2029 | under 3 values | — |
Each limit is one EPA's ICIS-NPDES file holds on the permit's current version with a begin date after today, enforceable and numeric, either on a parameter the outfall was never limited on (new) or lower than the limit in force (tighter). Today's median is the plant's own reported values for the same outfall, statistic and unit between Oct 1, 2025 and Sep 30, 2026, with how many; none is shown where most were below a detection limit. Read the permit before relying on a value.
Sell to these plants? The list for your states every week, with every plant over a limit on your pollutant, as a spreadsheet, by API and by email when a new one appears: ask for the plant list, or write to info@passage-data.com. What a seller gets.
For programs and AI agents: a state's permits with these limits as JSON at /api/v1/permits?state=MS&upcoming=true, narrowed with &facility_type=potw or &min_flow_mgd=1; the whole list at /dmr/data/upcoming.json; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt
From EPA's ECHO data, not the permit document itself: your permit is the final word. All states