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Plants facing new discharge limits — by state and pollutant

In New Jersey, for Nitrogen, nitrate total [as N]: 2 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Jan 1, 2028 and Mar 1, 2029 (6 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 · IA 2 · NJ 2 · NY 1

By pollutant: all · Copper, total recoverable 16 · Chlorine produced oxidants 9 · Phosphorus, total [as P] 7 · Zinc, total recoverable 5 · Bromodichloromethane, effluent 4 · BOD, 5-day, 20 deg. C 3 · Chlorodibromomethane 3 · 2,3,7,8-Tetrachlorodibenzo-p-dioxin 2 · Di[2-ethylhexyl] phthalate [DEHP] 2 · Hydrocarbons, in H2O, IR, CC14 extractible chromatograph 2 · Nitrogen, ammonia total [as N] 2 · Nitrogen, nitrate total [as N] 2 · pH 2 · Polychlorinated biphenyls [PCBs] 2 · Solids, total suspended 2 · Arsenic, total recoverable 1 · Benzo[a]pyrene 1 · Carbon, tot organic [TOC] 1 · Chemical Oxygen Demand [COD] 1 · Cyanide, total [as CN] 1 · Dichlorobromomethane 1 · E. coli 1 · Lead, total recoverable 1 · Mercury, total recoverable 1 · Nickel, total recoverable 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
MADISON CHATHAM JOINT MEETINGNJ0024937NJSewage plant, major3.5 MGDNitrogen, nitrate total [as N]monthly average 24 mg/L, newJan 1, 202829.5 mg/L (10 values)1.23×
MADISON CHATHAM JOINT MEETINGNJ0024937NJSewage plant, major3.5 MGDNitrogen, nitrate total [as N]daily maximum 29 mg/L, newJan 1, 202831.9 mg/L (10 values)1.1×
VA NJ HEALTHCARE SYSTEMNJ0021083NJFederal.4 MGDNitrogen, nitrate total [as N]daily maximum 10 mg/L, newMar 1, 202918.85 mg/L (10 values)1.89×
MADISON CHATHAM JOINT MEETINGNJ0024937NJSewage plant, major3.5 MGDNitrogen, nitrate total [as N]monthly average 318 kg/d, newJan 1, 2028226 kg/d (10 values)0.711×
MADISON CHATHAM JOINT MEETINGNJ0024937NJSewage plant, major3.5 MGDNitrogen, nitrate total [as N]daily maximum 384 kg/d, newJan 1, 2028261 kg/d (10 values)0.68×
VA NJ HEALTHCARE SYSTEMNJ0021083NJFederal.4 MGDNitrogen, nitrate total [as N]daily maximum 15.1 kg/d, newMar 1, 20297.3 kg/d (10 values)0.483×

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=NJ&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