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In Minnesota, for Sulfate, total [as SO4]: 4 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2027 and Jul 1, 2030 (8 limits); 2 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 · IA 4 · MN 4 · IN 1 · TX 1
By pollutant: all · Phosphorus, total [as P] 9 · Chloride [as Cl] 4 · Solids, total suspended 4 · Sulfate, total [as SO4] 4 · BOD, carbonaceous [5 day, 20 C] 3 · Mercury, total [as Hg] 2 · Nitrogen, ammonia total [as N] 2 · pH 2 · Chlorine, total residual 1 · Coliform, fecal MPN + membrane ftl 44.5 C 1 · Copper, total [as Cu] 1 · Flow, in conduit or thru treatment plant 1 · Nitrogen, total [as N] 1 · Perfluorobutanesulfonic acid (PFBS) 1 · Perfluorobutanoic acid (PFBA) 1 · Perfluorohexanesulfonic acid (PFHxS) 1 · Perfluorooctanesulfonic acid (PFOS) 1 · Perfluorooctanoic acid (PFOA) 1 · Solids, total dissolved 1 · Zinc, total [as Zn] 1
| Plant | Permit | State | Type | Design flow | Parameter | New limit | Effective | Today's median | × limit |
|---|---|---|---|---|---|---|---|---|---|
| Plainview Milk Products Coop | MN0000311 | MN | Industrial | .5 MGD | Sulfate, total [as SO4] | monthly average 15.9 mg/L, new | May 1, 2028 | 22 mg/L (9 values) | 1.38× |
| Agropur, Inc. | MN0060216 | MN | Industrial | .279 MGD | Sulfate, total [as SO4] | monthly average 15.9 mg/L, new | Oct 1, 2028 | 107 mg/L (12 values) | 6.73× |
| Agropur, Inc. | MN0060216 | MN | Industrial | .279 MGD | Sulfate, total [as SO4] | monthly average 16.8 kg/d, new | Oct 1, 2028 | 97.5 kg/d (12 values) | 5.8× |
| Brewster city of | MN0021750 | MN | Sewage plant | .191 MGD | Sulfate, total [as SO4] | daily maximum 908 mg/L (Jan, Mar, May, Jul, Sep, Nov), tighter | Dec 1, 2027 | under 3 values | — |
| Plainview Milk Products Coop | MN0000311 | MN | Industrial | .5 MGD | Sulfate, total [as SO4] | monthly average 27.1 kg/d, new | May 1, 2028 | 9.5 kg/d (9 values) | 0.351× |
| Brewster city of | MN0021750 | MN | Sewage plant | .191 MGD | Sulfate, total [as SO4] | daily maximum 908 mg/L (Jan, Mar, May, Jul, Sep, Nov), tighter | May 1, 2028 | under 3 values | — |
| Alexandria Lake Area Sanitary District | MN0040738 | MN | Sewage plant, major | 4.7 MGD | Sulfate, total [as SO4] | monthly average 2828 kg/d, new | Jun 1, 2030 | under 3 values | — |
| Alexandria Lake Area Sanitary District | MN0040738 | MN | Sewage plant, major | 4.7 MGD | Sulfate, total [as SO4] | monthly average 2828 kg/d, new | Jul 1, 2030 | 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=MN&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