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In New York, for Nitrogen, ammonia total [as N]: 7 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Jan 31, 2027 and May 1, 2029 (19 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 · IA 90 · LA 80 · MS 63 · MD 45 · PA 45 · OH 40 · MI 33 · VA 33 · GA 22 · SC 8 · NE 7 · NY 7 · TX 7 · IN 6 · KS 6 · MO 5 · UT 5 · OR 4 · SD 4 · TN 4 · IL 3 · AR 2 · MN 2 · NJ 2 · NM 2 · CO 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
| Plant | Permit | State | Type | Design flow | Parameter | New limit | Effective | Today's median | × limit |
|---|---|---|---|---|---|---|---|---|---|
| SUN ASSOCIATION ISLAND RV LLC | NY0257583 | NY | Industrial | — | Nitrogen, ammonia total [as N] | monthly average 2 lb/d (Jun–Oct), new | May 1, 2029 | 10.3 lb/d (3 values) | 5.15× |
| SUN ASSOCIATION ISLAND RV LLC | NY0257583 | NY | Industrial | — | Nitrogen, ammonia total [as N] | monthly average 4.7 mg/L (Jun–Oct), new | May 1, 2029 | 10.3 mg/L (3 values) | 2.19× |
| CARMEL (T) | NY0030678 | NY | Sewage plant | .0275 MGD | Nitrogen, ammonia total [as N] | monthly average 6.58 mg/L (Jun–Oct), new | Jan 31, 2027 | under 3 values | — |
| SAUGERTIES (T) | NY0145556 | NY | Sewage plant | .1 MGD | Nitrogen, ammonia total [as N] | monthly average 17.8 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new | Dec 31, 2027 | under 3 values | — |
| SAUGERTIES (T) | NY0145556 | NY | Sewage plant | .1 MGD | Nitrogen, ammonia total [as N] | monthly average 11.6 mg/L (Jun–Oct), new | Dec 31, 2027 | under 3 values | — |
| DUTCHESS CO WATER & WASTEWATER AUTHORITY | NY0214531 | NY | Sewage plant | .216 MGD | Nitrogen, ammonia total [as N] | monthly average 3.7 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new | Jan 1, 2028 | under 3 values | — |
| DUTCHESS CO WATER & WASTEWATER AUTHORITY | NY0214531 | NY | Sewage plant | .216 MGD | Nitrogen, ammonia total [as N] | monthly average 1.8 mg/L (Jun–Oct), new | Jan 1, 2028 | under 3 values | — |
| PORTVILLE (V) | NY0020966 | NY | Sewage plant | .78 MGD | Nitrogen, ammonia total [as N] | monthly average 13 lb/d (Jun–Oct), new | Jan 1, 2028 | under 3 values | — |
| PORTVILLE (V) | NY0020966 | NY | Sewage plant | .78 MGD | Nitrogen, ammonia total [as N] | monthly average 2 mg/L (Jun–Oct), new | Jan 1, 2028 | under 3 values | — |
| PORTVILLE (V) | NY0020966 | NY | Sewage plant | .78 MGD | Nitrogen, ammonia total [as N] | monthly average 3.2 mg/L (Jan, Mar, Apr, Nov, Dec), new | Jan 1, 2028 | under 3 values | — |
| PORTVILLE (V) | NY0020966 | NY | Sewage plant | .78 MGD | Nitrogen, ammonia total [as N] | monthly average 20.8 lb/d (Jan, Mar, Apr, Nov, Dec), new | Jan 1, 2028 | under 3 values | — |
| PHELPS (V) | NY0024651 | NY | Sewage plant | .304 MGD | Nitrogen, ammonia total [as N] | monthly average 19 lb/d (Jan, Feb, Mar, Apr, May, Nov, Dec), new | Jan 1, 2029 | under 3 values | — |
| PHELPS (V) | NY0024651 | NY | Sewage plant | .304 MGD | Nitrogen, ammonia total [as N] | monthly average 7.7 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new | Jan 1, 2029 | under 3 values | — |
| PHELPS (V) | NY0024651 | NY | Sewage plant | .304 MGD | Nitrogen, ammonia total [as N] | monthly average 2.5 mg/L (Jun–Oct), new | Jan 1, 2029 | under 3 values | — |
| PHELPS (V) | NY0024651 | NY | Sewage plant | .304 MGD | Nitrogen, ammonia total [as N] | monthly average 6.3 lb/d (Jun–Oct), new | Jan 1, 2029 | under 3 values | — |
| SAMARITAN DAYTOP VILLAGE INC | NY0150363 | NY | Industrial | — | Nitrogen, ammonia total [as N] | daily maximum 11 mg/L (Jun–Oct), new | May 1, 2029 | under 3 values | — |
| SAMARITAN DAYTOP VILLAGE INC | NY0150363 | NY | Industrial | — | Nitrogen, ammonia total [as N] | daily maximum 16 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new | May 1, 2029 | under 3 values | — |
| SUN ASSOCIATION ISLAND RV LLC | NY0257583 | NY | Industrial | — | Nitrogen, ammonia total [as N] | monthly average 3 lb/d (Jan, Feb, Mar, Apr, May, Nov, Dec), new | May 1, 2029 | under 3 values | — |
| SUN ASSOCIATION ISLAND RV LLC | NY0257583 | NY | Industrial | — | Nitrogen, ammonia total [as N] | monthly average 7.1 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new | May 1, 2029 | under 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