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Plants facing new discharge limits — by state and pollutant

In Pennsylvania, for BOD, carbonaceous [5 day, 20 C]: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Jan 1, 2027 and Apr 1, 2031 (24 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 · OH 20 · TX 8 · PA 7 · MN 3 · NY 3 · AR 1 · IA 1 · IN 1 · LA 1 · MI 1 · NE 1 · SC 1

By pollutant: all · Chlorine, total residual 70 · Copper, total [as Cu] 48 · Nitrogen, ammonia total [as N] 45 · Cyanide, free available 13 · Zinc, total [as Zn] 12 · Aluminum, total [as Al] 11 · Selenium, total [as Se] 10 · Chloroform 9 · Di[2-ethylhexyl] phthalate [DEHP] 9 · Thallium, total [as Tl] 9 · Temperature, water deg. fahrenheit 8 · BOD, carbonaceous [5 day, 20 C] 7 · Dichlorobromomethane 7 · Iron, total [as Fe] 7 · Lead, total [as Pb] 7 · Manganese, total [as Mn] 7 · Solids, total suspended 7 · Arsenic, total [as As] 6 · Mercury, total [as Hg] 6 · Boron, total [as B] 5 · Cadmium, total [as Cd] 4 · Chlorodibromomethane 4 · Iron, dissolved [as Fe] 4 · Phosphorus, total [as P] 4 · Antimony, total [as Sb] 3

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
CONNEAUT LAKE JT MUNI AUTH CRAWFORD CNTYPA0021598PASewage plant, major1.1 MGDBOD, carbonaceous [5 day, 20 C]monthly average 5 mg/L, tighterJul 1, 20286.24 mg/L (9 values, 1 below detection)1.25×
CONNEAUT LAKE JT MUNI AUTH CRAWFORD CNTYPA0021598PASewage plant, major1.1 MGDBOD, carbonaceous [5 day, 20 C]weekly average 7.5 mg/L, tighterJul 1, 20287.6 mg/L (9 values, 1 below detection)1.01×
PALISADES SCH DISTPA0029530PAIndustrial.022 MGDBOD, carbonaceous [5 day, 20 C]monthly average 20 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighterJan 1, 20274.25 mg/L (6 values)0.212×
PALISADES SCH DISTPA0029530PAIndustrial.022 MGDBOD, carbonaceous [5 day, 20 C]monthly average 3.58 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighterJan 1, 20270.3 lb/d (6 values)0.0838×
EMPIRE REALTY HOMES LLCPA0255416PAIndustrial.035 MGDBOD, carbonaceous [5 day, 20 C]monthly average 10 mg/L, tighterJan 31, 20277.25 mg/L (9 values)0.725×
EMPIRE REALTY HOMES LLCPA0255416PAIndustrial.035 MGDBOD, carbonaceous [5 day, 20 C]instantaneous maximum 20 mg/L, tighterJan 31, 20279 mg/L (9 values)0.45×
SMITHFIELD TWP MONROE CNTYPA0061361PASewage plant.4 MGDBOD, carbonaceous [5 day, 20 C]monthly average 76.7 lb/d, tighterJun 1, 20274 lb/d (8 values, 8 below detection)—
SMITHFIELD TWP MONROE CNTYPA0061361PASewage plant.4 MGDBOD, carbonaceous [5 day, 20 C]monthly average 23 mg/L, tighterJun 1, 20273 mg/L (8 values, 8 below detection)—
SMITHFIELD TWP MONROE CNTYPA0061361PASewage plant.4 MGDBOD, carbonaceous [5 day, 20 C]weekly average 115.1 lb/d, tighterJun 1, 20275 lb/d (8 values, 5 below detection)—
SMITHFIELD TWP MONROE CNTYPA0061361PASewage plant.4 MGDBOD, carbonaceous [5 day, 20 C]weekly average 34.5 mg/L, tighterJun 1, 20273 mg/L (8 values, 5 below detection)—
CONNEAUT LAKE JT MUNI AUTH CRAWFORD CNTYPA0021598PASewage plant, major1.1 MGDBOD, carbonaceous [5 day, 20 C]weekly average 71.5 lb/d, tighterJul 1, 202844 lb/d (9 values, 1 below detection)0.615×
CONNEAUT LAKE JT MUNI AUTH CRAWFORD CNTYPA0021598PASewage plant, major1.1 MGDBOD, carbonaceous [5 day, 20 C]monthly average 45.8 lb/d, tighterJul 1, 202827 lb/d (9 values, 1 below detection)0.59×
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTYPA0070386PASewage plant, major2 MGDBOD, carbonaceous [5 day, 20 C]monthly average 10 mg/L, tighterJun 1, 20295.6 mg/L (9 values, 1 below detection)0.56×
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTYPA0070386PASewage plant, major2 MGDBOD, carbonaceous [5 day, 20 C]weekly average 15 mg/L, tighterJun 1, 20297.6 mg/L (8 values)0.507×
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTYPA0070386PASewage plant, major2 MGDBOD, carbonaceous [5 day, 20 C]monthly average 166.8 lb/d, tighterJun 1, 202929 lb/d (9 values, 1 below detection)0.174×
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTYPA0070386PASewage plant, major2 MGDBOD, carbonaceous [5 day, 20 C]weekly average 250.2 lb/d, tighterJun 1, 202943 lb/d (9 values)0.172×
TAYLOR TWP LAWRENCE CNTYPA0024856PASewage plant.575 MGDBOD, carbonaceous [5 day, 20 C]monthly average 78 lb/d, newJun 1, 2029under 3 values—
TAYLOR TWP LAWRENCE CNTYPA0024856PASewage plant.575 MGDBOD, carbonaceous [5 day, 20 C]monthly average 25 mg/L, newJun 1, 2029under 3 values—
TAYLOR TWP LAWRENCE CNTYPA0024856PASewage plant.575 MGDBOD, carbonaceous [5 day, 20 C]weekly average 125 lb/d, newJun 1, 2029under 3 values—
TAYLOR TWP LAWRENCE CNTYPA0024856PASewage plant.575 MGDBOD, carbonaceous [5 day, 20 C]weekly average 40 mg/L, newJun 1, 2029under 3 values—
PINE CREEK MUNI AUTH CLINTON CNTYPA0027553PASewage plant, major1.6 MGDBOD, carbonaceous [5 day, 20 C]weekly average 18.5 mg/L, tighterApr 1, 20317.15 mg/L (9 values)0.386×
PINE CREEK MUNI AUTH CLINTON CNTYPA0027553PASewage plant, major1.6 MGDBOD, carbonaceous [5 day, 20 C]monthly average 17 mg/L, tighterApr 1, 20315 mg/L (9 values)0.294×
PINE CREEK MUNI AUTH CLINTON CNTYPA0027553PASewage plant, major1.6 MGDBOD, carbonaceous [5 day, 20 C]weekly average 245 lb/d, tighterApr 1, 203172 lb/d (9 values)0.294×
PINE CREEK MUNI AUTH CLINTON CNTYPA0027553PASewage plant, major1.6 MGDBOD, carbonaceous [5 day, 20 C]monthly average 225 lb/d, tighterApr 1, 203140 lb/d (9 values)0.178×

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=PA&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