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Plants facing new discharge limits — by state and pollutant

In Indiana, for Cyanide, free [as free]: 4 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Jan 1, 2027 and Sep 1, 2028 (14 limits); 1 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 · IN 4 · TX 4

By pollutant: all · Toxicity [acute], Ceriodaphnia dubia 8 · Toxicity [acute], Pimephales promelas [Fathead Minnow] 8 · Toxicity [chronic], Ceriodaphnia dubia 8 · Toxicity [chronic], Pimephales promelas [Fathead Minnow] 7 · Nitrogen, ammonia total [as N] 6 · Phosphorus, total [as P] 6 · Selenium, total recoverable 5 · Zinc, total recoverable 5 · Cyanide, free [as free] 4 · Lead, total recoverable 3 · Cadmium, total recoverable 2 · Chloride [as Cl] 2 · Nickel, total recoverable 2 · Silver total recoverable 2 · Solids, total suspended 2 · Arsenic, total recoverable 1 · BOD, carbonaceous [5 day, 20 C] 1 · Boron, total recoverable 1 · Bromide [as Br] 1 · Copper, total recoverable 1 · Cyanide, total recoverable 1 · E. coli, colony forming units [CFU] 1 · Fluoride, total [as F] 1 · Manganese, total recoverable 1 · Mercury, total recoverable 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
GREENFIELD WWTPIN0020109INSewage plant, major8 MGDCyanide, free [as free]monthly average 0.0043 mg/L, newJan 1, 20270.005 mg/L (11 values, 1 below detection)1.16×
GREENFIELD WWTPIN0020109INSewage plant, major8 MGDCyanide, free [as free]daily maximum 0.0085 mg/L, newJan 1, 20270.005 mg/L (11 values)0.588×
ALBION WWTPIN0022144INSewage plant.34 MGDCyanide, free [as free]monthly average 0.015 mg/L, newJun 1, 20270.002648 mg/L (10 values)0.177×
ALBION WWTPIN0022144INSewage plant.34 MGDCyanide, free [as free]monthly average 0.043 lb/d, newJun 1, 20270.006428 lb/d (10 values)0.149×
ALBION WWTPIN0022144INSewage plant.34 MGDCyanide, free [as free]daily maximum 0.03 mg/L, newJun 1, 20270.00435 mg/L (10 values, 1 below detection)0.145×
ALBION WWTPIN0022144INSewage plant.34 MGDCyanide, free [as free]daily maximum 0.085 lb/d, newJun 1, 20270.01189 lb/d (10 values)0.14×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDCyanide, free [as free]monthly average 0.0049 mg/L, newJun 1, 20280.003 mg/L (11 values)0.612×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDCyanide, free [as free]monthly average 0.0049 mg/L, newJun 1, 20280.003 mg/L (11 values)0.612×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDCyanide, free [as free]daily maximum 0.0085 mg/L, newJun 1, 20280.003 mg/L (11 values)0.353×
IPALCO - PETERSBURG GEN STATIONIN0002887INIndustrial, major340 MGDCyanide, free [as free]daily maximum 0.0085 mg/L, newJun 1, 20280.003 mg/L (11 values)0.353×
PORTAGE WATER RECLAMATION FACILITYIN0024368INSewage plant, major5.3 MGDCyanide, free [as free]daily maximum 0.0104 mg/L, newSep 1, 20280.002 mg/L (11 values)0.192×
PORTAGE WATER RECLAMATION FACILITYIN0024368INSewage plant, major5.3 MGDCyanide, free [as free]daily maximum 0.46 lb/d, newSep 1, 20280.052 lb/d (11 values)0.113×
PORTAGE WATER RECLAMATION FACILITYIN0024368INSewage plant, major5.3 MGDCyanide, free [as free]monthly average 0.23 lb/d, newSep 1, 2028under 3 values—
PORTAGE WATER RECLAMATION FACILITYIN0024368INSewage plant, major5.3 MGDCyanide, free [as free]monthly average 0.0052 mg/L, newSep 1, 2028under 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=IN&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