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Plants facing new discharge limits — by state and pollutant

In Louisiana, for Solids, total suspended: 4 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Apr 1, 2027 and Oct 1, 2029 (10 limits); 2 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 · OH 23 · PA 7 · TX 6 · LA 4 · MN 4 · FL 2 · GA 2 · IN 2 · NJ 2 · SC 2 · AR 1 · CO 1 · MD 1 · MI 1 · NE 1 · UT 1

By pollutant: all · Nitrogen, ammonia total [as N] 80 · Chlorine, total residual 78 · Copper, total [as Cu] 7 · Zinc, total [as Zn] 7 · Mercury, total [as Hg] 5 · Solids, total dissolved 4 · Solids, total suspended 4 · Nitrogen, ammonia [NH3-N] 3 · BOD, 5-day, 20 deg. C 2 · Cadmium, total [as Cd] 2 · Cyanide, total [as CN] 2 · 1,2-Dichloroethane 1 · 2,3,7,8-Tetrachlorodibenzo-p-dioxin 1 · BOD, carbonaceous [5 day, 20 C] 1 · Carbon tetrachloride 1 · Chromium, hexavalent [as Cr] 1 · Heptachlor 1 · Lead, total [as Pb] 1 · Oil & Grease 1 · Phenolics, total recoverable 1 · Vinyl chloride 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
TOWN OF LOGANSPORTLA0033308LASewage plant.4 MGDSolids, total suspendedmonthly average 15 mg/L, tighterApr 1, 202718.8 mg/L (11 values)1.25×
CITY OF BATON ROUGE/PARISH OF EAST BATON ROUGE- LAKE JOLIE VUE SUBD. #306LA0127754LAIndustrial—Solids, total suspendedweekly average 23 mg/L, tighterJul 1, 202732 mg/L (9 values)1.39×
CITY OF BATON ROUGE/PARISH OF EAST BATON ROUGE- LAKE JOLIE VUE SUBD. #306LA0127754LAIndustrial—Solids, total suspendedmonthly average 15 mg/L, tighterJul 1, 202720.65 mg/L (9 values)1.38×
TOWN OF LOGANSPORTLA0033308LASewage plant.4 MGDSolids, total suspendedmonthly average 50 lb/d, tighterApr 1, 202747.7 lb/d (11 values)0.954×
TOWN OF LOGANSPORTLA0033308LASewage plant.4 MGDSolids, total suspendedweekly average 23 mg/L, tighterApr 1, 202718.3 mg/L (11 values)0.796×
CITY OF BATON ROUGE/PARISH OF EBR - PLEASANT PARK SUBDIVISION #357LA0127763LAIndustrial—Solids, total suspendedmonthly average 15 mg/L, tighterFeb 1, 20287.35 mg/L (9 values)0.49×
CITY OF BATON ROUGE/PARISH OF EBR - PLEASANT PARK SUBDIVISION #357LA0127763LAIndustrial—Solids, total suspendedweekly average 23 mg/L, tighterFeb 1, 202810.7 mg/L (9 values)0.465×
Gueydan Town of - Gueydan Sewage Treatment PlantLA0049883LASewage plant.37 MGDSolids, total suspendedmonthly average 15 mg/L, tighterOct 1, 202912 mg/L (9 values)0.8×
Gueydan Town of - Gueydan Sewage Treatment PlantLA0049883LASewage plant.37 MGDSolids, total suspendedweekly average 23 mg/L, tighterOct 1, 202916 mg/L (9 values)0.696×
Gueydan Town of - Gueydan Sewage Treatment PlantLA0049883LASewage plant.37 MGDSolids, total suspendedmonthly average 46 lb/d, tighterOct 1, 202928 lb/d (9 values)0.609×

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=LA&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