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Plants facing new discharge limits — by state and pollutant

In Ohio, for Zinc, total recoverable: 10 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Apr 1, 2027 and Sep 1, 2029 (17 limits); 1 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 10 · VA 7 · IN 5 · NJ 5 · WV 4 · AR 2 · CA 1 · ID 1 · MO 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
Thomas Steel Strip CorporationOH0011363OHIndustrial, major—Zinc, total recoverabledaily maximum 330 ug/L, newJan 1, 2028633 ug/L (11 values)1.92×
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Zinc, total recoverabledaily maximum 342 ug/L, tighterApr 1, 202793 ug/L (11 values)0.272×
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Zinc, total recoverabledaily maximum 4.53 kg/d, tighterApr 1, 20270.8 kg/d (11 values)0.177×
Botkins,Village OfOH0022217OHSewage plant.5 MGDZinc, total recoverabledaily maximum 653 ug/L, newApr 1, 202718 ug/L (11 values)0.0276×
Botkins,Village OfOH0022217OHSewage plant.5 MGDZinc, total recoverabledaily maximum 1.2 kg/d, newApr 1, 2027under 3 values—
Eaton Homes WWTPOH0026140OHSewage plant.2 MGDZinc, total recoverabledaily maximum 0.18 kg/d (Jun, Dec), newMay 1, 2027under 3 values—
Eaton Homes WWTPOH0026140OHSewage plant.2 MGDZinc, total recoverabledaily maximum 240 ug/L (Jun, Dec), newMay 1, 2027under 3 values—
Eaton Homes WWTPOH0026140OHSewage plant.2 MGDZinc, total recoverablemonthly average 240 ug/L (Jun, Dec), newMay 1, 2027under 3 values—
Eaton Homes WWTPOH0026140OHSewage plant.2 MGDZinc, total recoverablemonthly average 0.18 kg/d (Jun, Dec), newMay 1, 2027under 3 values—
Republic Steel - Lorain PlantOH0001562OHIndustrial, major—Zinc, total recoverablemonthly average 557 ug/L, newAug 1, 2027167 ug/L (10 values)0.3×
Republic Steel - Lorain PlantOH0001562OHIndustrial, major—Zinc, total recoverabledaily maximum 564 ug/L, newAug 1, 2027167 ug/L (10 values)0.296×
Thomas Steel Strip CorporationOH0011363OHIndustrial, major—Zinc, total recoverabledaily maximum 1.34 kg/d, newJan 1, 2028under 3 values—
Wieland ChaseOH0002941OHIndustrial—Zinc, total recoverabledaily maximum 480 ug/L, newApr 1, 2028135 ug/L (11 values)0.281×
Morral Companies, LLCOH0143839OHIndustrial—Zinc, total recoverabledaily maximum 300 ug/L, newMay 1, 2028under 3 values—
Zimmer Power Company LLCOH0048836OHIndustrial, major—Zinc, total recoverabledaily maximum 270 ug/L, newDec 1, 202882 ug/L (8 values)0.304×
Cleveland-Cliffs Cleveland Works LLCOH0000957OHIndustrial, major—Zinc, total recoverabledaily maximum 720 ug/L, newMar 1, 202926.7 ug/L (6 values)0.0371×
JSW Steel USA Ohio, Inc.OH0011355OHIndustrial, major—Zinc, total recoverabledaily maximum 380 ug/L (Mar, Jun, Sep, Dec), newSep 1, 202938 ug/L (3 values)0.1×

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