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Plants facing new discharge limits — by state and pollutant

for Solids, total dissolved: 17 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Nov 1, 2026 and Jul 1, 2030 (31 limits); 3 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: LA 4 · TX 4 · NY 2 · PA 2 · IA 1 · IN 1 · MN 1 · TN 1 · UT 1

By pollutant: all · Nitrogen, ammonia total [as N] 526 · Chlorine, total residual 272 · Phosphorus, total [as P] 106 · E. coli 103 · Copper, total [as Cu] 85 · Copper, total recoverable 63 · Solids, total suspended 60 · Chloride [as Cl] 56 · BOD, carbonaceous [5 day, 20 C] 48 · Zinc, total [as Zn] 39 · Zinc, total recoverable 36 · BOD, 5-day, 20 deg. C 35 · pH 31 · Cyanide, free available 30 · Nitrogen, total [as N] 28 · Iron, total [as Fe] 22 · Mercury, total [as Hg] 22 · Toxicity [acute], Ceriodaphnia dubia 22 · Toxicity [acute], Pimephales promelas [Fathead Minnow] 21 · Selenium, total [as Se] 20 · Di[2-ethylhexyl] phthalate [DEHP] 19 · E. coli, MTEC-MF 19 · Mercury, total low level 19 · Toxicity [chronic], Ceriodaphnia dubia 18 · Toxicity [chronic], Pimephales promelas [Fathead Minnow] 18

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
Town of BaileytonTN0063932TNSewage plant.2 MGDSolids, total dissolveddaily maximum 500 mg/L, newJul 1, 2027554 mg/L (11 values)1.11×
WASHINGTON PARISH GOVERNMENTLA0068101LASewage plant—Solids, total dissolvedmonthly average 496 mg/L, newOct 1, 20272560 mg/L (3 values)5.16×
WASHINGTON PARISH GOVERNMENTLA0068101LASewage plant—Solids, total dissolveddaily maximum 1181 mg/L, newOct 1, 20272560 mg/L (3 values)2.17×
DUKE ENERGY INDIANA CAYUGA GENERATING STATIONIN0002763INIndustrial, major—Solids, total dissolvedmonthly average 149 mg/L, newJan 1, 202919300 mg/L (11 values)130×
DUKE ENERGY INDIANA CAYUGA GENERATING STATIONIN0002763INIndustrial, major—Solids, total dissolveddaily maximum 306 mg/L, newJan 1, 202920600 mg/L (11 values)67.3×
Canyon Fuel LLC SUFCO MineUT0022918UTIndustrial, major5.5 MGDSolids, total dissolveddaily maximum 1210 mg/L, tighterNov 1, 2026796 mg/L (11 values)0.658×
HOMER CITY GENERATION LPPA0005037PAIndustrial, major20.541 MGDSolids, total dissolveddaily maximum 306 mg/L, newDec 1, 2026under 3 values—
HOMER CITY GENERATION LPPA0005037PAIndustrial, major20.541 MGDSolids, total dissolvedmonthly average 149 mg/L, newDec 1, 2026under 3 values—
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×
EGAN WATER CORPORATIONLA0125806LAIndustrial—Solids, total dissolvedmonthly average 7870 mg/L, newJul 1, 2027632 mg/L (3 values)0.0803×
EGAN WATER CORPORATIONLA0125806LAIndustrial—Solids, total dissolveddaily maximum 18731 mg/L, newJul 1, 2027632 mg/L (3 values)0.0337×
CSC SUGAR LLCPA0245658PAIndustrial0 MGDSolids, total dissolveddaily maximum 2000 mg/L, newAug 1, 2027under 3 values—
CSC SUGAR LLCPA0245658PAIndustrial0 MGDSolids, total dissolveddaily maximum 2000 mg/L, newAug 1, 2027under 3 values—
ST. TAMMANY PARISH GOVERNMENTLA0120235LASewage plant, major1.25 MGDSolids, total dissolvedmonthly average 759 mg/L, newOct 1, 2027282 mg/L (3 values)0.372×
ST. TAMMANY PARISH GOVERNMENTLA0120235LASewage plant, major1.25 MGDSolids, total dissolvedweekly average 1805 mg/L, newOct 1, 2027282 mg/L (3 values)0.156×
ST. TAMMANY PARISH GOVERNMENTLA0120235LASewage plant, major1.25 MGDSolids, total dissolvedmonthly average 7907 lb/d, newOct 1, 20271072 lb/d (3 values)0.136×
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—
MILLBROOK (V)NY0025429NYSewage plant.25 MGDSolids, total dissolveddaily maximum 1300 mg/L, newMay 1, 2028under 3 values—
Newellton Town of - Town of Newellton WWTPLA0020095LASewage plant.72 MGDSolids, total dissolvedmonthly average 285 mg/L, newDec 1, 2028under 3 values—
Newellton Town of - Town of Newellton WWTPLA0020095LASewage plant.72 MGDSolids, total dissolvedmonthly average 1709 lb/d, newDec 1, 2028under 3 values—
Newellton Town of - Town of Newellton WWTPLA0020095LASewage plant.72 MGDSolids, total dissolvedweekly average 677 mg/L, newDec 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×
MUSCATINE POWER AND WATERIA0001082IAIndustrial, major—Solids, total dissolved30-day average 149 mg/L, newJan 1, 2029under 3 values—
MUSCATINE POWER AND WATERIA0001082IAIndustrial, major—Solids, total dissolveddaily maximum 306 mg/L, newJan 1, 2029under 3 values—
REAGENT CHEMICAL & RESEARCH INCTX0125369TXIndustrial.046 MGDSolids, total dissolveddaily maximum 12700 mg/L, newMar 1, 2029750 mg/L (3 values)0.0591×
FALLSBURG (T)NY0024520NYSewage plant, major3.3 MGDSolids, total dissolveddaily maximum 1000 mg/L, newMay 30, 2030421.5 mg/L (4 values)0.421×
Alexandria Lake Area Sanitary DistrictMN0040738MNSewage plant, major4.7 MGDSolids, total dissolveddaily maximum 34511 kg/d (Mar, Jun, Sep, Dec), newJun 1, 2030under 3 values—
Alexandria Lake Area Sanitary DistrictMN0040738MNSewage plant, major4.7 MGDSolids, total dissolveddaily maximum 34511 kg/d (Mar, Jun, Sep, Dec), newJul 1, 2030under 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=OH&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