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In Pennsylvania, for 4,4'-DDT: 2 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Sep 1, 2027 and Dec 1, 2028 (6 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 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
| Plant | Permit | State | Type | Design flow | Parameter | New limit | Effective | Today's median | × limit |
|---|---|---|---|---|---|---|---|---|---|
| TMS INTL LLC | PA0253553 | PA | Industrial | .05 MGD | 4,4'-DDT | daily maximum 0.05 ug/L, new | Sep 1, 2027 | 0.004 ug/L (9 values, 9 below detection) | — |
| TMS INTL LLC | PA0253553 | PA | Industrial | .05 MGD | 4,4'-DDT | monthly average 0.05 ug/L, new | Sep 1, 2027 | 0.004 ug/L (9 values, 9 below detection) | — |
| LEAR CORP PINE GROVE | PA0008231 | PA | Industrial, major | 2 MGD | 4,4'-DDT | daily maximum 0.001 ug/L, new | Dec 1, 2028 | 0.054 ug/L (6 values, 5 below detection) | — |
| LEAR CORP PINE GROVE | PA0008231 | PA | Industrial, major | 2 MGD | 4,4'-DDT | daily maximum 0.00001 lb/d, new | Dec 1, 2028 | 0.00015 lb/d (6 values, 5 below detection) | — |
| LEAR CORP PINE GROVE | PA0008231 | PA | Industrial, major | 2 MGD | 4,4'-DDT | monthly average 0.000007 lb/d, new | Dec 1, 2028 | 0.0001499 lb/d (6 values, 5 below detection) | — |
| LEAR CORP PINE GROVE | PA0008231 | PA | Industrial, major | 2 MGD | 4,4'-DDT | monthly average 0.0007 ug/L, new | Dec 1, 2028 | 0.054 ug/L (6 values, 5 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