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Plants facing new discharge limits — by state and pollutant

In Ohio, for pH: 15 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Mar 1, 2030 (17 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 · OH 15 · PA 3 · MN 2 · NJ 2 · CA 1 · GA 1 · IN 1 · MI 1 · OR 1 · SC 1 · TX 1 · UT 1 · VA 1

By pollutant: all · Nitrogen, ammonia total [as N] 40 · Solids, total suspended 23 · BOD, carbonaceous [5 day, 20 C] 20 · Mercury, total low level 19 · E. coli, MTEC-MF 18 · Copper, total recoverable 17 · Cyanide, free available 17 · Chlorine, total residual 16 · pH 15 · Phosphorus, total [as P] 12 · Toxicity [acute], Ceriodaphnia dubia 12 · Solids, total dissolved- 180 deg. C 11 · Toxicity [acute], Pimephales promelas [Fathead Minnow] 11 · Toxicity [chronic], Pimephales promelas [Fathead Minnow] 10 · Zinc, total recoverable 10 · Toxicity [chronic], Ceriodaphnia dubia 9 · Selenium, total recoverable 8 · Chromium, hexavalent dissolved [as Cr] 7 · Cadmium, total recoverable 6 · Di[2-ethylhexyl] phthalate [DEHP] 6 · Lead, total recoverable 6 · Silver total recoverable 4 · Carcinogen additivity factor 2 · Nitrogen, inorganic total 2 · Oil and grease, hexane extr method 2

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
Madison Road EnterpriseOH0151748OHIndustrial.004 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newDec 1, 20267.95 SU (4 values)0.883×
Mike's SanitationOH0132390OHIndustrial—pHdaily maximum 9 SU (Jul–Sep), newFeb 1, 2027under 3 values—
Big Bear Lake Family ResortOH0151726OHIndustrial.0015 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newJun 1, 20278.5 SU (3 values)0.944×
Granger Township Fire DepartmentOH0151763OHIndustrial.0008 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newJun 1, 2027under 3 values—
Hartzell Methodist ChurchOH0151750OHIndustrial.0005 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newAug 1, 2027under 3 values—
Regal Plumbing & Heating CompanyOH0151765OHIndustrial.001 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newDec 1, 20277.83 SU (3 values)0.87×
Green Hills Golf Course & Inn, Inc.OH0151713OHIndustrial.013 MGDpHdaily maximum 9 SU, newFeb 1, 20287.8 SU (6 values)0.867×
Tiffin Moose Family Center: Lodge #846OH0151717OHIndustrial.005 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newFeb 1, 20287.75 SU (4 values)0.861×
Clinton Lake CampingOH0151732OHIndustrial.0175 MGDpHdaily maximum 9 SU, newApr 1, 2028under 3 values—
7900 Morgan RoadOH0151781OHIndustrial.001 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newJun 1, 2028under 3 values—
Berauer Rd.OH0151780OHIndustrial.001 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newJun 1, 2028under 3 values—
St Jude Ball Field Concessions & RestroomOH0151720OHIndustrial.001 MGDpHdaily maximum 9 SU (Mar, Jun, Aug, Dec), newJun 1, 2028under 3 values—
Village of Lowell WWTPOH6020311OHIndustrial.1081 MGDpHdaily maximum 9 SU, newAug 1, 2028under 3 values—
High Stakes FarmsOH0151766OHIndustrial.006 MGDpHdaily maximum 9 SU (Jun, Aug), newDec 1, 2028under 3 values—
Cleveland-Cliffs Cleveland Works LLCOH0000957OHIndustrial, major—pHdaily maximum 11.3 SU, newMar 1, 20299.9 SU (11 values)0.876×
Cleveland-Cliffs Cleveland Works LLCOH0000957OHIndustrial, major—pHdaily maximum 9 SU (Mar, Jun, Sep, Dec), newMar 1, 2030under 3 values—
Cleveland-Cliffs Cleveland Works LLCOH0000957OHIndustrial, major—pHdaily maximum 9 SU (Mar, Jun, Sep, Dec), newMar 1, 2030under 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=OH&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