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Plants facing new discharge limits — by state and pollutant

In Pennsylvania, for Manganese, total [as Mn]: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Mar 1, 2028 (16 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 · PA 7

By pollutant: all · Chlorine, total residual 70 · Copper, total [as Cu] 48 · Nitrogen, ammonia total [as N] 45 · Cyanide, free available 13 · Zinc, total [as Zn] 12 · Aluminum, total [as Al] 11 · Selenium, total [as Se] 10 · Chloroform 9 · Di[2-ethylhexyl] phthalate [DEHP] 9 · Thallium, total [as Tl] 9 · Temperature, water deg. fahrenheit 8 · BOD, carbonaceous [5 day, 20 C] 7 · Dichlorobromomethane 7 · Iron, total [as Fe] 7 · Lead, total [as Pb] 7 · Manganese, total [as Mn] 7 · Solids, total suspended 7 · Arsenic, total [as As] 6 · Mercury, total [as Hg] 6 · Boron, total [as B] 5 · Cadmium, total [as Cd] 4 · Chlorodibromomethane 4 · Iron, dissolved [as Fe] 4 · Phosphorus, total [as P] 4 · Antimony, total [as Sb] 3

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
HOMER CITY GENERATION LPPA0005037PAIndustrial, major20.541 MGDManganese, total [as Mn]daily maximum 2 mg/L, newDec 1, 2026under 3 values—
HOMER CITY GENERATION LPPA0005037PAIndustrial, major20.541 MGDManganese, total [as Mn]monthly average 1 mg/L, newDec 1, 2026under 3 values—
LAWRENCEVILLE ACQUISITION COMPANY, LLCPA0255840PAIndustrial.277 MGDManganese, total [as Mn]daily maximum 1.5 mg/L, newMay 1, 20270.305 mg/L (9 values, 1 below detection)0.203×
LAWRENCEVILLE ACQUISITION COMPANY, LLCPA0255840PAIndustrial.277 MGDManganese, total [as Mn]monthly average 1 mg/L, newMay 1, 20270.1228 mg/L (9 values, 3 below detection)0.123×
REPUBLIC SVC OF PA LLCPA0046680PAIndustrial.5 MGDManganese, total [as Mn]monthly average 2.68 mg/L, newJul 1, 20270.688 mg/L (9 values)0.257×
REPUBLIC SVC OF PA LLCPA0046680PAIndustrial.5 MGDManganese, total [as Mn]daily maximum 4.18 mg/L, newJul 1, 20270.688 mg/L (9 values)0.165×
REPUBLIC SVC OF PA LLCPA0046680PAIndustrial.5 MGDManganese, total [as Mn]daily maximum 17.43 lb/d, newJul 1, 2027under 3 values—
REPUBLIC SVC OF PA LLCPA0046680PAIndustrial.5 MGDManganese, total [as Mn]monthly average 11.18 lb/d, newJul 1, 2027under 3 values—
USHHS CDCPA0025844PAFederal.086 MGDManganese, total [as Mn]daily maximum 3.8 mg/L, tighterJul 1, 2027under 3 values—
CLEVELAND CLIFFS STEEL CORPPA0253308PAIndustrial.004 MGDManganese, total [as Mn]monthly average 1.14 mg/L, newSep 1, 20270.162 mg/L (9 values)0.142×
CLEVELAND CLIFFS STEEL CORPPA0253308PAIndustrial.004 MGDManganese, total [as Mn]daily maximum 2.11 mg/L, newSep 1, 20270.175 mg/L (9 values)0.0829×
WESTINGHOUSE ELEC COPA0000892PAIndustrial.109 MGDManganese, total [as Mn]monthly average 1 mg/L, newJan 1, 20280.01 mg/L (9 values, 4 below detection)0.01×
WESTINGHOUSE ELEC COPA0000892PAIndustrial.109 MGDManganese, total [as Mn]daily maximum 2 mg/L, newJan 1, 20280.01 mg/L (9 values, 1 below detection)0.005×
WESTINGHOUSE ELEC COPA0000892PAIndustrial.109 MGDManganese, total [as Mn]annual total 341 lb/yr, newJan 1, 2028under 3 values—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDManganese, total [as Mn]quarterly average 1 mg/L, newMar 1, 20280.938 mg/L (3 values)0.938×
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDManganese, total [as Mn]daily maximum 2 mg/L, newMar 1, 20281.14 mg/L (3 values)0.57×

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=PA&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