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Plants facing new discharge limits — by state and pollutant

In Texas, for Benzo[a]anthracene: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Jul 1, 2029 (19 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 · TX 7 · PA 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
MONUMENT CHEMICAL HOUSTON LLCTX0085979TXIndustrial.22 MGDBenzo[a]anthracenedaily average 0.002 lb/d, tighterDec 1, 2026under 3 values—
MONUMENT CHEMICAL HOUSTON LLCTX0085979TXIndustrial.22 MGDBenzo[a]anthracenedaily maximum 0.003 lb/d, tighterDec 1, 2026under 3 values—
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDBenzo[a]anthracenedaily average 0.00006 mg/L, tighterDec 1, 2026under 3 values—
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDBenzo[a]anthracenedaily maximum 0.00012 mg/L, tighterDec 1, 2026under 3 values—
SHELL CHEMICAL LPTX0004863TXIndustrial, major9.9 MGDBenzo[a]anthracenedaily maximum 0.15 lb/d, tighterDec 1, 2026under 3 values—
METTON AMERICA INCTX0084808TXIndustrial—Benzo[a]anthracenedaily average 0.0000142 lb/d, tighterFeb 1, 2027under 3 values—
METTON AMERICA INCTX0084808TXIndustrial—Benzo[a]anthracenedaily average 0.00085 mg/L, tighterFeb 1, 2027under 3 values—
METTON AMERICA INCTX0084808TXIndustrial—Benzo[a]anthracenedaily maximum 0.0018 mg/L, tighterFeb 1, 2027under 3 values—
METTON AMERICA INCTX0084808TXIndustrial—Benzo[a]anthracenedaily maximum 0.00003 lb/d, tighterFeb 1, 2027under 3 values—
SI GROUP INCTX0087254TXIndustrial.022 MGDBenzo[a]anthracenedaily average 0.0000569 mg/L, tighterMar 1, 2027under 3 values—
SI GROUP INCTX0087254TXIndustrial.022 MGDBenzo[a]anthracenedaily maximum 0.00012 mg/L, tighterMar 1, 2027under 3 values—
JEFFERSON TERMINAL SOUTH LLCTX0004669TXIndustrial, major—Benzo[a]anthracenedaily average 0.071 lb/d, tighterMay 1, 2027under 3 values—
JEFFERSON TERMINAL SOUTH LLCTX0004669TXIndustrial, major—Benzo[a]anthracenedaily maximum 0.15 lb/d, tighterMay 1, 2027under 3 values—
BRASKEM AMERICA INCTX0074276TXIndustrial, major.622 MGDBenzo[a]anthracenedaily average 0.0002 mg/L, tighterSep 1, 2027under 3 values—
BRASKEM AMERICA INCTX0074276TXIndustrial, major.622 MGDBenzo[a]anthracenedaily average 0.0013 lb/d, tighterSep 1, 2027under 3 values—
BRASKEM AMERICA INCTX0074276TXIndustrial, major.622 MGDBenzo[a]anthracenedaily maximum 0.0027 lb/d, tighterSep 1, 2027under 3 values—
BRASKEM AMERICA INCTX0074276TXIndustrial, major.622 MGDBenzo[a]anthracenedaily maximum 0.0004 mg/L, tighterSep 1, 2027under 3 values—
INEOS ACETYLS CHEMICALS TEXAS CITY INCTX0005762TXIndustrial, major3.24 MGDBenzo[a]anthracenedaily average 0.00085 mg/L, newJul 1, 2029under 3 values—
INEOS ACETYLS CHEMICALS TEXAS CITY INCTX0005762TXIndustrial, major3.24 MGDBenzo[a]anthracenedaily maximum 0.0018 mg/L, newJul 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=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