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Plants facing new discharge limits — by state and pollutant

In Texas, for Solids, total dissolved: 4 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Feb 1, 2027 and Mar 1, 2029 (7 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 · LA 4 · TX 4 · NY 2 · PA 2 · IA 1 · IN 1 · MN 1 · TN 1 · UT 1

By pollutant: all · Zinc, total [as Zn] 11 · BOD, carbonaceous [5 day, 20 C] 8 · Copper, total [as Cu] 8 · Benzo[a]anthracene 7 · Benzo[a]pyrene 7 · Hexachlorobenzene 7 · Nitrogen, ammonia total [as N] 7 · Solids, total suspended 6 · Hexachlorobutadiene 5 · Cyanide, free [as free] 4 · Solids, total dissolved 4 · Aluminum, total [as Al] 3 · Chromium, hexavalent [as Cr] 3 · Nickel, total [as Ni] 3 · Selenium, total [as Se] 3 · Chloride [as Cl] 2 · Di[2-ethylhexyl] phthalate [DEHP] 2 · Enterococci 2 · Flow, in conduit or thru treatment plant 2 · Hexachloroethane 2 · Lead, total [as Pb] 2 · Phosphorus, total [as P] 2 · 1,2-Dichloropropane 1 · 4,4'-DDT 1 · Barium, total [as Ba] 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
FREEPORT LNG DEVELOPMENT LPTX0134056TXIndustrial—Solids, total dissolveddaily average 1306 mg/L, newFeb 1, 20271109 mg/L (5 values)0.849×
FREEPORT LNG DEVELOPMENT LPTX0134056TXIndustrial—Solids, total dissolveddaily maximum 2763 mg/L, newFeb 1, 20271109 mg/L (5 values)0.401×
CHEVRON PHILLIPS CHEMICAL COMPANY LPTX0003948TXIndustrial, major4 MGDSolids, total dissolveddaily average 1582 mg/L, tighterFeb 1, 2028under 3 values—
CHEVRON PHILLIPS CHEMICAL COMPANY LPTX0003948TXIndustrial, major4 MGDSolids, total dissolveddaily maximum 3348 mg/L, tighterFeb 1, 2028under 3 values—
ENTERPRISE PRODUCTS OPERATING LLCTX0134077TXIndustrial.02 MGDSolids, total dissolveddaily average 2279 mg/L, newJan 1, 20291740 mg/L (8 values)0.763×
ENTERPRISE PRODUCTS OPERATING LLCTX0134077TXIndustrial.02 MGDSolids, total dissolveddaily maximum 4823 mg/L, newJan 1, 20291750 mg/L (11 values)0.363×
REAGENT CHEMICAL & RESEARCH INCTX0125369TXIndustrial.046 MGDSolids, total dissolveddaily maximum 12700 mg/L, newMar 1, 2029750 mg/L (3 values)0.0591×

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=TX&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