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Plants facing new discharge limits — by state and pollutant

In Pennsylvania, for Lead, total [as Pb]: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Sep 1, 2027 and Dec 1, 2029 (32 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 · PA 7 · SC 3 · IA 2 · TX 2 · LA 1 · MD 1 · OK 1

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
WASHINGTON TWP MUNI AUTH CLARION CNTYPA0023591PASewage plant.085 MGDLead, total [as Pb]monthly average 0.0041 lb/d, newAug 1, 20280.07 lb/d (9 values)17.1×
WASHINGTON TWP MUNI AUTH CLARION CNTYPA0023591PASewage plant.085 MGDLead, total [as Pb]weekly average 0.0061 lb/d, newAug 1, 20280.08 lb/d (9 values)13.1×
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]monthly average 1 ug/L, newSep 1, 20270.12 ug/L (3 values, 1 below detection)0.12×
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]daily maximum 1.23 ug/L, newSep 1, 20270.12 ug/L (3 values, 1 below detection)0.0976×
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]daily maximum 1.43 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]monthly average 1 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]daily maximum 1.57 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]monthly average 1.01 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]daily maximum 1 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]monthly average 1 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]daily maximum 1.16 ug/L, newSep 1, 2027under 3 values—
CURTISS WRIGHT CORPPA0001228PAIndustrial.55 MGDLead, total [as Pb]monthly average 1 ug/L, newSep 1, 2027under 3 values—
MUNI AUTH OF WESTMORELAND CNTYPA0035246PAIndustrial1.3 MGDLead, total [as Pb]daily maximum 43.5 ug/L, newJan 1, 20280.007 ug/L (10 values, 10 below detection)—
MUNI AUTH OF WESTMORELAND CNTYPA0035246PAIndustrial1.3 MGDLead, total [as Pb]monthly average 27.9 ug/L, newJan 1, 20280.006 ug/L (10 values, 10 below detection)—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDLead, total [as Pb]daily maximum 0.0064 mg/L, newMar 1, 20280.00499 mg/L (9 values, 9 below detection)—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDLead, total [as Pb]monthly average 0.0032 mg/L, newMar 1, 20280.00499 mg/L (9 values, 9 below detection)—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDLead, total [as Pb]daily maximum 0.0064 mg/L, newMar 1, 20280.00499 mg/L (9 values, 9 below detection)—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDLead, total [as Pb]monthly average 0.0032 mg/L, newMar 1, 20280.00499 mg/L (9 values, 9 below detection)—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDLead, total [as Pb]daily maximum 0.0064 mg/L, newMar 1, 20280.00499 mg/L (9 values, 9 below detection)—
LBR ACQUISITION CO LLCPA0027481PAIndustrial, major3.715 MGDLead, total [as Pb]monthly average 0.0032 mg/L, newMar 1, 20280.00499 mg/L (9 values, 9 below detection)—
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTYPA0025224PASewage plant.75 MGDLead, total [as Pb]daily maximum 0.015 mg/L, newMar 1, 20280.02 mg/L (9 values, 9 below detection)—
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTYPA0025224PASewage plant.75 MGDLead, total [as Pb]daily maximum 0.093 lb/d, newMar 1, 20280.08 lb/d (9 values, 9 below detection)—
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTYPA0025224PASewage plant.75 MGDLead, total [as Pb]monthly average 0.01 mg/L, newMar 1, 20280.01 mg/L (9 values, 9 below detection)—
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTYPA0025224PASewage plant.75 MGDLead, total [as Pb]monthly average 0.06 lb/d, newMar 1, 20280.05 lb/d (9 values, 9 below detection)—
WASHINGTON TWP MUNI AUTH CLARION CNTYPA0023591PASewage plant.085 MGDLead, total [as Pb]monthly average 5.81 ug/L, newAug 1, 20280.35 ug/L (9 values)0.0602×
WASHINGTON TWP MUNI AUTH CLARION CNTYPA0023591PASewage plant.085 MGDLead, total [as Pb]weekly average 8.71 ug/L, newAug 1, 20280.35 ug/L (9 values)0.0402×
SHOHOLA FALLS TRAILS ENDPA0060577PAIndustrial.205 MGDLead, total [as Pb]daily maximum 0.006 mg/L, newJun 1, 20290.007 mg/L (8 values, 7 below detection)—
SHOHOLA FALLS TRAILS ENDPA0060577PAIndustrial.205 MGDLead, total [as Pb]monthly average 0.004 mg/L, newJun 1, 20290.007 mg/L (8 values, 8 below detection)—
BLUE RIDGE REAL ESTATE COPA0034118PAIndustrial.4 MGDLead, total [as Pb]daily maximum 0.03 mg/L, newDec 1, 20290.001 mg/L (6 values, 6 below detection)—
BLUE RIDGE REAL ESTATE COPA0034118PAIndustrial.4 MGDLead, total [as Pb]daily maximum 0.005 lb/d, newDec 1, 20290.000065 lb/d (6 values, 6 below detection)—
BLUE RIDGE REAL ESTATE COPA0034118PAIndustrial.4 MGDLead, total [as Pb]monthly average 0.003 lb/d, newDec 1, 20290.000065 lb/d (6 values, 6 below detection)—
BLUE RIDGE REAL ESTATE COPA0034118PAIndustrial.4 MGDLead, total [as Pb]monthly average 0.03 mg/L, newDec 1, 20290.001 mg/L (6 values, 6 below detection)—

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