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Plants facing new discharge limits — by state and pollutant

In Ohio, for Lead, total recoverable: 6 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Mar 1, 2027 and May 1, 2029 (20 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 6 · IN 3 · WV 2 · AL 1 · AR 1 · NJ 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
LaGrange WPCPOH0046221OHSewage plant.72 MGDLead, total recoverabledaily maximum 310 ug/L (Mar, Jun, Sep, Dec), newMar 1, 2027under 3 values—
LaGrange WPCPOH0046221OHSewage plant.72 MGDLead, total recoverabledaily maximum 0.84 kg/d (Mar, Jun, Sep, Dec), newMar 1, 2027under 3 values—
LaGrange WPCPOH0046221OHSewage plant.72 MGDLead, total recoverablemonthly average 0.046 kg/d (Mar, Jun, Sep, Dec), newMar 1, 2027under 3 values—
LaGrange WPCPOH0046221OHSewage plant.72 MGDLead, total recoverablemonthly average 17 ug/L (Mar, Jun, Sep, Dec), newMar 1, 2027under 3 values—
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Lead, total recoverablemonthly average 30 ug/L, tighterApr 1, 202717 ug/L (11 values)0.567×
TimkenSteel Corp. - Canton WWTPOH0004219OHIndustrial, major—Lead, total recoverablemonthly average 0.4 kg/d, tighterApr 1, 20270.13 kg/d (11 values)0.325×
City of CelinaOH0020320OHSewage plant, major3 MGDLead, total recoverabledaily maximum 3.4 kg/d, newApr 1, 2027under 3 values—
City of CelinaOH0020320OHSewage plant, major3 MGDLead, total recoverabledaily maximum 300 ug/L, newApr 1, 2027under 3 values—
City of CelinaOH0020320OHSewage plant, major3 MGDLead, total recoverablemonthly average 16 ug/L, newApr 1, 2027under 3 values—
City of CelinaOH0020320OHSewage plant, major3 MGDLead, total recoverablemonthly average 0.18 kg/d, newApr 1, 2027under 3 values—
Thomas Steel Strip CorporationOH0011363OHIndustrial, major—Lead, total recoverablemonthly average 31.6 ug/L, tighterJan 1, 20280.66 ug/L (4 values)0.0209×
Thomas Steel Strip CorporationOH0011363OHIndustrial, major—Lead, total recoverablemonthly average 0.05 kg/d, tighterJan 1, 20280.000827 kg/d (4 values)0.0165×
Aurora Westerly WWTPOH0098043OHSewage plant, major1.4 MGDLead, total recoverabledaily maximum 1.8 kg/d, newMay 1, 2029under 3 values—
Aurora Westerly WWTPOH0098043OHSewage plant, major1.4 MGDLead, total recoverabledaily maximum 338 ug/L, newMay 1, 2029under 3 values—
Aurora Westerly WWTPOH0098043OHSewage plant, major1.4 MGDLead, total recoverablemonthly average 16 ug/L, newMay 1, 2029under 3 values—
Aurora Westerly WWTPOH0098043OHSewage plant, major1.4 MGDLead, total recoverablemonthly average 0.085 kg/d, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDLead, total recoverabledaily maximum 3.7 kg/d, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDLead, total recoverabledaily maximum 309 ug/L, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDLead, total recoverablemonthly average 15 ug/L, newMay 1, 2029under 3 values—
Bedford Wastewater Treatment PlantOH0024040OHSewage plant, major3.2 MGDLead, total recoverablemonthly average 0.18 kg/d, newMay 1, 2029under 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