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Plants facing new discharge limits — by state and pollutant

In New York, for BOD, 5-day, 20 deg. C: 3 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Jan 31, 2027 and Oct 1, 2029 (6 limits); 0 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 · GA 7 · MS 7 · SC 7 · NJ 3 · NY 3 · LA 2 · PA 2 · CO 1 · KS 1 · MD 1 · UT 1

By pollutant: all · Nitrogen, ammonia total [as N] 7 · Chlorine, total residual 4 · Coliform, fecal general 4 · BOD, 5-day, 20 deg. C 3 · BOD, carbonaceous [5 day, 20 C] 3 · Mercury, total [as Hg] 2 · Phosphorus, total [as P] 2 · Solids, total dissolved 2 · Cadmium, total [as Cd] 1 · Flow, in conduit or thru treatment plant 1 · Nickel, total [as Ni] 1 · Nitrogen, nitrate total [as N] 1 · ortho-xylene 1 · Phenolic compounds, total 1 · Total phenols 1 · Xylene, meta & para in combination 1 · Zinc, total [as Zn] 1

PlantPermitStateTypeDesign flowParameterNew limitEffectiveToday's median× limit
CARMEL (T)NY0030678NYSewage plant.0275 MGDBOD, 5-day, 20 deg. Cmonthly average 2.27 lb/d, newJan 31, 2027under 3 values—
CARMEL (T)NY0030678NYSewage plant.0275 MGDBOD, 5-day, 20 deg. Cmonthly average 10 mg/L, newJan 31, 2027under 3 values—
BEEKMAN (T)NY0164933NYSewage plant.028 MGDBOD, 5-day, 20 deg. Cdaily maximum 1.2 lb/d, newNov 30, 2027under 3 values—
BEEKMAN (T)NY0164933NYSewage plant.028 MGDBOD, 5-day, 20 deg. Cdaily maximum 5 mg/L, newNov 30, 2027under 3 values—
RHINEBECK (V)NY0110281NYSewage plant.26 MGDBOD, 5-day, 20 deg. Cdaily maximum 11 lb/d, newOct 1, 2029under 3 values—
RHINEBECK (V)NY0110281NYSewage plant.26 MGDBOD, 5-day, 20 deg. Cdaily maximum 5 mg/L, newOct 1, 2029under 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=NY&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