In Pennsylvania, for Nitrogen, ammonia total [as N]: 45 plants hold a permit with a new or tighter discharge limit already written into it, taking effect between Dec 1, 2026 and Apr 1, 2031 (161 limits); 10 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

Plant	Permit	State	Type	Design flow	Parameter	New limit	Effective	Today's median	× limit
PALISADES SCH DIST	PA0029530	PA	Industrial	.022 MGD	Nitrogen, ammonia total [as N]	monthly average 1.5 mg/L (May–Oct), tighter	Jan 1, 2027	2.8 mg/L (3 values)	1.87×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	monthly average 2.16 mg/L (May–Oct), tighter	Feb 1, 2027	3.6 mg/L (3 values)	1.67×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	weekly average 3.24 mg/L (May–Oct), tighter	Feb 1, 2027	4.5 mg/L (3 values)	1.39×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	monthly average 4.47 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Feb 1, 2027	5.5 mg/L (6 values)	1.23×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	weekly average 6.7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Feb 1, 2027	7.9 mg/L (6 values)	1.18×
JOHNSTOWN REDEV AUTH CAMBRIA CNTY	PA0026034	PA	Sewage plant, major	12 MGD	Nitrogen, ammonia total [as N]	monthly average 16.32 mg/L (May–Oct), tighter	Feb 1, 2027	18.1 mg/L (3 values)	1.11×
EAGLE LAKE COMM ASSN INC	PA0061603	PA	Industrial	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 1.4 mg/L (May–Oct), tighter	Apr 1, 2027	8.8 mg/L (3 values)	6.29×
EAGLE LAKE COMM ASSN INC	PA0061603	PA	Industrial	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 5.8 lb/d (May–Oct), tighter	Apr 1, 2027	11 lb/d (3 values)	1.9×
WAVERLY TWP LACKAWANNA CNTY	PA0061034	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 4.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Apr 1, 2027	5.5 mg/L (5 values, 2 below detection)	1.22×
BARKEYVILLE SEWERAGE LLC	PA0025607	PA	Industrial	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 1.3 mg/L (May–Oct), tighter	Jun 1, 2028	2.77 mg/L (3 values)	2.13×
GCP COUNTRYSIDE LP	PA0102652	PA	Industrial	.05 MGD	Nitrogen, ammonia total [as N]	monthly average 1.4 mg/L (May–Oct), tighter	Jun 1, 2028	1.8 mg/L (3 values)	1.29×
GCP COUNTRYSIDE LP	PA0102652	PA	Industrial	.05 MGD	Nitrogen, ammonia total [as N]	monthly average 4.2 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2028	4.6 mg/L (5 values)	1.1×
WOODLAND BIGLER AREA AUTH	PA0115231	PA	Industrial	.225 MGD	Nitrogen, ammonia total [as N]	monthly average 9.83 mg/L, new	Jun 1, 2029	16.78 mg/L (9 values, 1 below detection)	1.71×
WOODLAND BIGLER AREA AUTH	PA0115231	PA	Industrial	.225 MGD	Nitrogen, ammonia total [as N]	weekly average 14.74 mg/L, new	Jun 1, 2029	23.81 mg/L (9 values, 1 below detection)	1.62×
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTY	PA0070386	PA	Sewage plant, major	2 MGD	Nitrogen, ammonia total [as N]	monthly average 6.12 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2029	7.395 mg/L (6 values)	1.21×
COALDALE-LANSFORD-SUMMIT HILL SEWER AUTHORITY	PA0026476	PA	Sewage plant, major	1.65 MGD	Nitrogen, ammonia total [as N]	monthly average 9.18 mg/L (Jan, Feb, Mar, Apr, May, Oct, Nov, Dec), tighter	Aug 1, 2029	13.75 mg/L (8 values)	1.5×
COALDALE-LANSFORD-SUMMIT HILL SEWER AUTHORITY	PA0026476	PA	Sewage plant, major	1.65 MGD	Nitrogen, ammonia total [as N]	weekly average 18.36 mg/L (Jan, Feb, Mar, Apr, May, Oct, Nov, Dec), tighter	Aug 1, 2029	18.8 mg/L (8 values)	1.02×
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 6 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Dec 1, 2026	3.808 mg/L (5 values, 2 below detection)	0.635×
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 7.5 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Dec 1, 2026	1 lb/d (5 values, 2 below detection)	0.133×
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 2 mg/L (May–Oct), new	Dec 1, 2026	1 mg/L (3 values, 3 below detection)	—
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 2.5 lb/d (May–Oct), new	Dec 1, 2026	0.3 lb/d (3 values, 3 below detection)	—
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	weekly average 3.5 mg/L (May–Oct), new	Dec 1, 2026	under 3 values	—
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	weekly average 4 lb/d (May–Oct), new	Dec 1, 2026	under 3 values	—
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	weekly average 13 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Dec 1, 2026	under 3 values	—
HUSTON TWP MUNI AUTH CLEARFIELD CNTY	PA0228346	PA	Sewage plant	.15 MGD	Nitrogen, ammonia total [as N]	weekly average 10.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Dec 1, 2026	under 3 values	—
PALISADES SCH DIST	PA0029530	PA	Industrial	.022 MGD	Nitrogen, ammonia total [as N]	monthly average 4.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jan 1, 2027	2.25 mg/L (6 values)	0.5×
PALISADES SCH DIST	PA0029530	PA	Industrial	.022 MGD	Nitrogen, ammonia total [as N]	monthly average 0.27 lb/d (May–Oct), tighter	Jan 1, 2027	0.1 lb/d (3 values)	0.37×
PALISADES SCH DIST	PA0029530	PA	Industrial	.022 MGD	Nitrogen, ammonia total [as N]	monthly average 0.81 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jan 1, 2027	0.25 lb/d (6 values)	0.309×
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	weekly average 6.7 mg/L (May–Oct), new	Jan 1, 2027	1.86 mg/L (3 values, 1 below detection)	0.278×
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	weekly average 20.2 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	3.13 mg/L (5 values, 1 below detection)	0.155×
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	weekly average 31 lb/d (May–Oct), new	Jan 1, 2027	3 lb/d (3 values, 1 below detection)	0.0968×
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	weekly average 93 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	5 lb/d (5 values, 1 below detection)	0.0538×
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	monthly average 21 lb/d (May–Oct), new	Jan 1, 2027	2 lb/d (3 values, 2 below detection)	—
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	monthly average 4.5 mg/L (May–Oct), new	Jan 1, 2027	1.63 mg/L (3 values, 2 below detection)	—
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	monthly average 13.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	1.14 mg/L (5 values, 4 below detection)	—
WOODWARD TWP SEW & WATER AUTH CLEARFIELD CNTY	PA0208922	PA	Industrial	.56 MGD	Nitrogen, ammonia total [as N]	monthly average 63 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Jan 1, 2027	2 lb/d (5 values, 4 below detection)	—
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	weekly average 469.7 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Feb 1, 2027	286.4 lb/d (6 values)	0.61×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	monthly average 151.3 lb/d (May–Oct), tighter	Feb 1, 2027	83.2 lb/d (3 values)	0.55×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	monthly average 313.1 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Feb 1, 2027	142.6 lb/d (6 values)	0.455×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Nitrogen, ammonia total [as N]	weekly average 226.9 lb/d (May–Oct), tighter	Feb 1, 2027	98.8 lb/d (3 values)	0.435×
JOHNSTOWN REDEV AUTH CAMBRIA CNTY	PA0026034	PA	Sewage plant, major	12 MGD	Nitrogen, ammonia total [as N]	monthly average 1630 lb/d (May–Oct), tighter	Feb 1, 2027	444 lb/d (3 values)	0.272×
EAGLE LAKE COMM ASSN INC	PA0061603	PA	Industrial	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 4.2 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Apr 1, 2027	3.75 mg/L (6 values)	0.893×
WAVERLY TWP LACKAWANNA CNTY	PA0061034	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 18.7 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Apr 1, 2027	8 lb/d (5 values, 2 below detection)	0.428×
EAGLE LAKE COMM ASSN INC	PA0061603	PA	Industrial	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 17.5 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Apr 1, 2027	7 lb/d (6 values)	0.4×
WAVERLY TWP LACKAWANNA CNTY	PA0061034	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 1.5 mg/L (May–Oct), tighter	Apr 1, 2027	0.2 mg/L (3 values, 3 below detection)	—
WAVERLY TWP LACKAWANNA CNTY	PA0061034	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 6.2 lb/d (May–Oct), tighter	Apr 1, 2027	0.3 lb/d (3 values, 3 below detection)	—
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Nitrogen, ammonia total [as N]	monthly average 11.49 mg/L (May–Oct), tighter	Jun 1, 2027	0.2 mg/L (3 values, 1 below detection)	0.0174×
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Nitrogen, ammonia total [as N]	daily maximum 22.98 mg/L (May–Oct), tighter	Jun 1, 2027	0.3 mg/L (3 values)	0.0131×
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Nitrogen, ammonia total [as N]	monthly average 53.2 lb/d (May–Oct), tighter	Jun 1, 2027	0.2 lb/d (3 values, 1 below detection)	0.00376×
POCONO PLATEAU CHRISTIAN ASSN	PA0060721	PA	Industrial	.015 MGD	Nitrogen, ammonia total [as N]	monthly average 10.9 mg/L (May–Oct), tighter	Jun 1, 2027	0.2 mg/L (3 values, 3 below detection)	—
LITTLE WALKER HOLDING DBA TWIN CEDARS SR LIVING	PA0062031	PA	Industrial	.008 MGD	Nitrogen, ammonia total [as N]	monthly average 2.34 mg/L (May–Oct), tighter	Jul 1, 2027	1 mg/L (3 values)	0.427×
LITTLE WALKER HOLDING DBA TWIN CEDARS SR LIVING	PA0062031	PA	Industrial	.008 MGD	Nitrogen, ammonia total [as N]	monthly average 7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jul 1, 2027	1 mg/L (6 values, 1 below detection)	0.143×
ARARAT TWP SUSQUEHANNA CNTY	PA0063321	PA	Sewage plant	.035 MGD	Nitrogen, ammonia total [as N]	monthly average 3.45 mg/L (May–Oct), new	Oct 1, 2027	0.8895 mg/L (3 values)	0.258×
ARARAT TWP SUSQUEHANNA CNTY	PA0063321	PA	Sewage plant	.035 MGD	Nitrogen, ammonia total [as N]	monthly average 10.35 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Oct 1, 2027	0.4 mg/L (6 values)	0.0386×
NORTHAMPTON BORO NORTHAMPTON CNTY	PA0031127	PA	Sewage plant, major	1.5 MGD	Nitrogen, ammonia total [as N]	monthly average 12.2 mg/L (May–Oct), tighter	Jan 1, 2028	7.29 mg/L (3 values)	0.598×
NORTHAMPTON BORO NORTHAMPTON CNTY	PA0031127	PA	Sewage plant, major	1.5 MGD	Nitrogen, ammonia total [as N]	monthly average 152 lb/d (May–Oct), tighter	Jan 1, 2028	43 lb/d (3 values)	0.283×
UNION LAKE HOTEL CO INC	PA0043362	PA	Industrial	.06 MGD	Nitrogen, ammonia total [as N]	monthly average 6.3 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Feb 1, 2028	under 3 values	—
UNION LAKE HOTEL CO INC	PA0043362	PA	Industrial	.06 MGD	Nitrogen, ammonia total [as N]	monthly average 2.1 mg/L (May–Oct), tighter	Feb 1, 2028	under 3 values	—
PA AMER WATER CO	PA0060097	PA	Industrial, major	1.25 MGD	Nitrogen, ammonia total [as N]	daily maximum 10.44 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2028	2.59 mg/L (6 values)	0.248×
NORTH AMER MED CTR LLC	PA0253324	PA	Industrial	.004 MGD	Nitrogen, ammonia total [as N]	monthly average 2 mg/L (May–Oct), tighter	Mar 1, 2028	0.424 mg/L (3 values)	0.212×
NORTH AMER MED CTR LLC	PA0253324	PA	Industrial	.004 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 4 mg/L (May–Oct), tighter	Mar 1, 2028	0.634 mg/L (3 values)	0.159×
NORTH AMER MED CTR LLC	PA0253324	PA	Industrial	.004 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 12 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2028	1.87 mg/L (6 values)	0.156×
NORTH AMER MED CTR LLC	PA0253324	PA	Industrial	.004 MGD	Nitrogen, ammonia total [as N]	monthly average 6 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2028	0.8695 mg/L (6 values)	0.145×
PA AMER WATER CO	PA0060097	PA	Industrial, major	1.25 MGD	Nitrogen, ammonia total [as N]	daily maximum 3.48 mg/L (May–Oct), tighter	Mar 1, 2028	0.2 mg/L (3 values)	0.0575×
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTY	PA0025224	PA	Sewage plant	.75 MGD	Nitrogen, ammonia total [as N]	monthly average 13.1 mg/L (May–Oct), tighter	Mar 1, 2028	0.36 mg/L (3 values)	0.0275×
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTY	PA0025224	PA	Sewage plant	.75 MGD	Nitrogen, ammonia total [as N]	daily maximum 26.2 mg/L (May–Oct), tighter	Mar 1, 2028	0.49 mg/L (3 values)	0.0187×
PA AMER WATER CO	PA0060097	PA	Industrial, major	1.25 MGD	Nitrogen, ammonia total [as N]	monthly average 18.1 lb/d (May–Oct), tighter	Mar 1, 2028	0.5 lb/d (3 values, 3 below detection)	—
PA AMER WATER CO	PA0060097	PA	Industrial, major	1.25 MGD	Nitrogen, ammonia total [as N]	monthly average 1.74 mg/L (May–Oct), tighter	Mar 1, 2028	0.1 mg/L (3 values, 3 below detection)	—
PA AMER WATER CO	PA0060097	PA	Industrial, major	1.25 MGD	Nitrogen, ammonia total [as N]	monthly average 5.22 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2028	1.15 mg/L (6 values, 4 below detection)	—
PA AMER WATER CO	PA0060097	PA	Industrial, major	1.25 MGD	Nitrogen, ammonia total [as N]	monthly average 54.4 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2028	5.4 lb/d (6 values, 4 below detection)	—
ESCAPE POA	PA0035891	PA	Industrial	.098 MGD	Nitrogen, ammonia total [as N]	monthly average 1.54 mg/L (May–Oct), tighter	May 1, 2028	0.8 mg/L (3 values)	0.519×
ESCAPE POA	PA0035891	PA	Industrial	.098 MGD	Nitrogen, ammonia total [as N]	daily maximum 3.08 mg/L (May–Oct), tighter	May 1, 2028	1.4 mg/L (3 values)	0.455×
SCHUYLKILL CNTY MUNI AUTH	PA0042951	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 4.8 mg/L (May–Oct), tighter	May 1, 2028	0.31 mg/L (3 values)	0.0646×
ESCAPE POA	PA0035891	PA	Industrial	.098 MGD	Nitrogen, ammonia total [as N]	monthly average 4.62 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	May 1, 2028	0.2 mg/L (6 values)	0.0433×
SCHUYLKILL CNTY MUNI AUTH	PA0042951	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 20 lb/d (May–Oct), tighter	May 1, 2028	0.67 lb/d (3 values)	0.0335×
SCHUYLKILL CNTY MUNI AUTH	PA0042951	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 14.4 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	May 1, 2028	0.415 mg/L (6 values)	0.0288×
SCHUYLKILL CNTY MUNI AUTH	PA0042951	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 60 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	May 1, 2028	1.405 lb/d (6 values)	0.0234×
ESCAPE POA	PA0035891	PA	Industrial	.098 MGD	Nitrogen, ammonia total [as N]	daily maximum 9.24 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	May 1, 2028	0.13 mg/L (6 values)	0.0141×
GCP COUNTRYSIDE LP	PA0102652	PA	Industrial	.05 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 2.8 mg/L (May–Oct), tighter	Jun 1, 2028	2.4 mg/L (3 values)	0.857×
PA FISH & BOAT COMM	PA0039144	PA	Industrial	3.2 MGD	Nitrogen, ammonia total [as N]	monthly average 26.9 lb/d, tighter	Jun 1, 2028	19 lb/d (9 values)	0.706×
GCP COUNTRYSIDE LP	PA0102652	PA	Industrial	.05 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 8.4 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2028	5.3 mg/L (5 values)	0.631×
PA FISH & BOAT COMM	PA0039144	PA	Industrial	3.2 MGD	Nitrogen, ammonia total [as N]	daily maximum 53.7 lb/d, tighter	Jun 1, 2028	24 lb/d (9 values)	0.447×
BARKEYVILLE SEWERAGE LLC	PA0025607	PA	Industrial	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 1.6 lb/d (May–Oct), tighter	Jun 1, 2028	0.2 lb/d (3 values)	0.125×
BARKEYVILLE SEWERAGE LLC	PA0025607	PA	Industrial	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 4.8 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2028	0.5 lb/d (6 values, 3 below detection)	—
BARKEYVILLE SEWERAGE LLC	PA0025607	PA	Industrial	.15 MGD	Nitrogen, ammonia total [as N]	monthly average 3.9 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2028	2.38 mg/L (6 values, 3 below detection)	—
SPG INC	PA0033740	PA	Industrial	.02 MGD	Nitrogen, ammonia total [as N]	monthly average 13.1 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2028	1.15 mg/L (6 values, 3 below detection)	—
BETHLEHEM CTR SCH DIST	PA0096571	PA	Industrial	.024 MGD	Nitrogen, ammonia total [as N]	monthly average 3.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Aug 1, 2028	0.3 mg/L (6 values)	0.0857×
BETHLEHEM CTR SCH DIST	PA0096571	PA	Industrial	.024 MGD	Nitrogen, ammonia total [as N]	monthly average 2 mg/L (May–Oct), tighter	Aug 1, 2028	0.1 mg/L (3 values)	0.05×
BETHLEHEM CTR SCH DIST	PA0096571	PA	Industrial	.024 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 4 mg/L (May–Oct), tighter	Aug 1, 2028	0.1 mg/L (3 values)	0.025×
BETHLEHEM CTR SCH DIST	PA0096571	PA	Industrial	.024 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Aug 1, 2028	0.1 mg/L (6 values)	0.0143×
JENDRZEJEWSKI WILLIAM & TESS	PA0063657	PA	Industrial	.007 MGD	Nitrogen, ammonia total [as N]	monthly average 4.2 mg/L (May–Oct), tighter	Aug 1, 2028	under 3 values	—
JENDRZEJEWSKI WILLIAM & TESS	PA0063657	PA	Industrial	.007 MGD	Nitrogen, ammonia total [as N]	monthly average 12.6 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Aug 1, 2028	under 3 values	—
LUTHERLYN	PA0104299	PA	Industrial	.016 MGD	Nitrogen, ammonia total [as N]	monthly average 4.5 mg/L (May–Oct), tighter	Sep 1, 2028	0.26 mg/L (3 values)	0.0578×
LUTHERLYN	PA0104299	PA	Industrial	.016 MGD	Nitrogen, ammonia total [as N]	monthly average 13.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Sep 1, 2028	0.155 mg/L (6 values)	0.0115×
NORTHEAST AMER DIOCESE OF THE MALANKARA ORTHODOX SYRIAN CH	PA0031071	PA	Industrial	.02 MGD	Nitrogen, ammonia total [as N]	monthly average 8.13 mg/L (Jan, Feb, Mar, Apr, Oct, Nov, Dec), tighter	Oct 1, 2028	5.75 mg/L (7 values)	0.707×
NP NEW CASTLE LLC	PA0047198	PA	Industrial	.05 MGD	Nitrogen, ammonia total [as N]	monthly average 6.44 mg/L (May–Oct), new	Nov 1, 2028	0.2 mg/L (3 values)	0.0311×
NP NEW CASTLE LLC	PA0047198	PA	Industrial	.05 MGD	Nitrogen, ammonia total [as N]	monthly average 19.32 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Nov 1, 2028	0.215 mg/L (6 values, 3 below detection)	—
LAKE ADVENTURE COMM ASSN	PA0062839	PA	Industrial	.16 MGD	Nitrogen, ammonia total [as N]	monthly average 5.16 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Dec 1, 2028	0.7 mg/L (3 values, 1 below detection)	0.136×
LAKE ADVENTURE COMM ASSN	PA0062839	PA	Industrial	.16 MGD	Nitrogen, ammonia total [as N]	monthly average 6.9 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Dec 1, 2028	0.23 lb/d (3 values)	0.0333×
LAKE ADVENTURE COMM ASSN	PA0062839	PA	Industrial	.16 MGD	Nitrogen, ammonia total [as N]	monthly average 1.72 mg/L (May–Oct), tighter	Dec 1, 2028	under 3 values	—
LAKE ADVENTURE COMM ASSN	PA0062839	PA	Industrial	.16 MGD	Nitrogen, ammonia total [as N]	monthly average 2.3 lb/d (May–Oct), tighter	Dec 1, 2028	under 3 values	—
MAHANOY CITY SEW AUTH SCHUYLKILL CNTY	PA0070041	PA	Sewage plant, major	1.38 MGD	Nitrogen, ammonia total [as N]	monthly average 4 mg/L (May–Oct), new	Apr 1, 2029	3.87 mg/L (3 values)	0.968×
MAHANOY CITY SEW AUTH SCHUYLKILL CNTY	PA0070041	PA	Sewage plant, major	1.38 MGD	Nitrogen, ammonia total [as N]	monthly average 12 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Apr 1, 2029	0.955 mg/L (6 values)	0.0796×
MAHANOY CITY SEW AUTH SCHUYLKILL CNTY	PA0070041	PA	Sewage plant, major	1.38 MGD	Nitrogen, ammonia total [as N]	monthly average 138 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Apr 1, 2029	under 3 values	—
MAHANOY CITY SEW AUTH SCHUYLKILL CNTY	PA0070041	PA	Sewage plant, major	1.38 MGD	Nitrogen, ammonia total [as N]	monthly average 46 lb/d (May–Oct), new	Apr 1, 2029	under 3 values	—
WOODLAND BIGLER AREA AUTH	PA0115231	PA	Industrial	.225 MGD	Nitrogen, ammonia total [as N]	weekly average 27.66 lb/d, new	Jun 1, 2029	20 lb/d (9 values, 1 below detection)	0.723×
WOODLAND BIGLER AREA AUTH	PA0115231	PA	Industrial	.225 MGD	Nitrogen, ammonia total [as N]	monthly average 18.44 lb/d, new	Jun 1, 2029	11 lb/d (9 values, 1 below detection)	0.597×
MT JEWETT BORO MCKEAN CNTY	PA0023451	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 3 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2029	1.63 mg/L (6 values, 2 below detection)	0.543×
MT JEWETT BORO MCKEAN CNTY	PA0023451	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 12.5 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2029	5.5 lb/d (6 values, 2 below detection)	0.44×
ADVENTURE BOUND SV LLC	PA0287903	PA	Industrial	.015 MGD	Nitrogen, ammonia total [as N]	monthly average 1.2 mg/L (May–Oct), tighter	Jun 1, 2029	3.6 mg/L (3 values, 2 below detection)	—
ADVENTURE BOUND SV LLC	PA0287903	PA	Industrial	.015 MGD	Nitrogen, ammonia total [as N]	monthly average 3.6 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2029	under 3 values	—
MT JEWETT BORO MCKEAN CNTY	PA0023451	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 4.1 lb/d (May–Oct), tighter	Jun 1, 2029	0.5 lb/d (3 values, 3 below detection)	—
MT JEWETT BORO MCKEAN CNTY	PA0023451	PA	Sewage plant	.5 MGD	Nitrogen, ammonia total [as N]	monthly average 1 mg/L (May–Oct), tighter	Jun 1, 2029	0.5 mg/L (3 values, 3 below detection)	—
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTY	PA0070386	PA	Sewage plant, major	2 MGD	Nitrogen, ammonia total [as N]	daily maximum 12.24 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2029	under 3 values	—
SHOHOLA FALLS TRAILS END	PA0060577	PA	Industrial	.205 MGD	Nitrogen, ammonia total [as N]	monthly average 5.7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jun 1, 2029	1 mg/L (5 values, 5 below detection)	—
SHOHOLA FALLS TRAILS END	PA0060577	PA	Industrial	.205 MGD	Nitrogen, ammonia total [as N]	monthly average 1.9 mg/L (May–Oct), tighter	Jun 1, 2029	1 mg/L (3 values, 3 below detection)	—
WEST SUNBURY BORO MUNI AUTH BUTLER CNTY	PA0221830	PA	Sewage plant	.028 MGD	Nitrogen, ammonia total [as N]	monthly average 8.1 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Jul 1, 2029	6.85 mg/L (6 values, 1 below detection)	0.846×
WEST SUNBURY BORO MUNI AUTH BUTLER CNTY	PA0221830	PA	Sewage plant	.028 MGD	Nitrogen, ammonia total [as N]	monthly average 2.7 mg/L (May–Oct), tighter	Jul 1, 2029	2 mg/L (3 values, 1 below detection)	0.741×
MARWORTH GEISINGER	PA0060470	PA	Industrial	.015 MGD	Nitrogen, ammonia total [as N]	monthly average 3.53 mg/L (May–Oct), tighter	Jul 1, 2029	0.35 mg/L (4 values, 3 below detection)	—
PARISH MARY ANN	PA0034215	PA	Industrial	.02 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 11.4 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jul 1, 2029	under 3 values	—
PARISH MARY ANN	PA0034215	PA	Industrial	.02 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 3.8 mg/L (May–Oct), new	Jul 1, 2029	under 3 values	—
PARISH MARY ANN	PA0034215	PA	Industrial	.02 MGD	Nitrogen, ammonia total [as N]	monthly average 5.7 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Jul 1, 2029	under 3 values	—
PARISH MARY ANN	PA0034215	PA	Industrial	.02 MGD	Nitrogen, ammonia total [as N]	monthly average 1.9 mg/L (May–Oct), new	Jul 1, 2029	under 3 values	—
INDIANA CNTY MUNI SVC AUTH	PA0252506	PA	Sewage plant	.006 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 10.2 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Aug 1, 2029	under 3 values	—
INDIANA CNTY MUNI SVC AUTH	PA0252506	PA	Sewage plant	.006 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 3.4 mg/L (May–Oct), tighter	Aug 1, 2029	under 3 values	—
INDIANA CNTY MUNI SVC AUTH	PA0252506	PA	Sewage plant	.006 MGD	Nitrogen, ammonia total [as N]	monthly average 5.1 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Aug 1, 2029	0.7 mg/L (6 values, 6 below detection)	—
INDIANA CNTY MUNI SVC AUTH	PA0252506	PA	Sewage plant	.006 MGD	Nitrogen, ammonia total [as N]	monthly average 1.7 mg/L (May–Oct), tighter	Aug 1, 2029	0.1 mg/L (3 values, 2 below detection)	—
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Nitrogen, ammonia total [as N]	daily maximum 10.32 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Dec 1, 2029	2.65 mg/L (5 values, 1 below detection)	0.257×
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Nitrogen, ammonia total [as N]	daily maximum 3.44 mg/L (May–Oct), tighter	Dec 1, 2029	under 3 values	—
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Nitrogen, ammonia total [as N]	monthly average 17.2 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Dec 1, 2029	0.12 lb/d (6 values, 5 below detection)	—
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Nitrogen, ammonia total [as N]	monthly average 5.16 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Dec 1, 2029	0.9 mg/L (6 values, 5 below detection)	—
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Nitrogen, ammonia total [as N]	monthly average 1.72 mg/L (May–Oct), tighter	Dec 1, 2029	0.2 mg/L (3 values, 3 below detection)	—
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Nitrogen, ammonia total [as N]	monthly average 5.7 lb/d (May–Oct), tighter	Dec 1, 2029	0.01 lb/d (3 values, 3 below detection)	—
SMETHPORT BORO AUTH MCKEAN CNTY	PA0021521	PA	Sewage plant	.751 MGD	Nitrogen, ammonia total [as N]	monthly average 156 lb/d (Jan, Feb, Mar, Apr, Oct, Nov, Dec), new	Feb 1, 2030	under 3 values	—
SMETHPORT BORO AUTH MCKEAN CNTY	PA0021521	PA	Sewage plant	.751 MGD	Nitrogen, ammonia total [as N]	monthly average 25 mg/L (Jan, Feb, Mar, Apr, Oct, Nov, Dec), new	Feb 1, 2030	0.5 mg/L (3 values, 3 below detection)	—
SMETHPORT BORO AUTH MCKEAN CNTY	PA0021521	PA	Sewage plant	.751 MGD	Nitrogen, ammonia total [as N]	monthly average 68 lb/d (May–Sep), new	Feb 1, 2030	under 3 values	—
SMETHPORT BORO AUTH MCKEAN CNTY	PA0021521	PA	Sewage plant	.751 MGD	Nitrogen, ammonia total [as N]	monthly average 11 mg/L (May–Sep), new	Feb 1, 2030	under 3 values	—
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	monthly average 1.95 mg/L (May–Oct), new	Apr 1, 2030	1.39 mg/L (3 values, 1 below detection)	0.713×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	monthly average 16.26 lb/d (May–Oct), new	Apr 1, 2030	6.95 lb/d (3 values, 1 below detection)	0.427×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	monthly average 3.01 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Apr 1, 2030	0.925 mg/L (6 values, 2 below detection)	0.307×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	monthly average 25.1 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Apr 1, 2030	5 lb/d (6 values, 2 below detection)	0.199×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	weekly average 24.35 lb/d (May–Oct), new	Apr 1, 2030	under 3 values	—
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	weekly average 2.92 mg/L (May–Oct), new	Apr 1, 2030	under 3 values	—
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	weekly average 4.51 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Apr 1, 2030	under 3 values	—
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Nitrogen, ammonia total [as N]	weekly average 37.61 lb/d (Jan, Feb, Mar, Apr, Nov, Dec), new	Apr 1, 2030	under 3 values	—
BOYLE PATRICK	PA0033316	PA	Industrial	.013 MGD	Nitrogen, ammonia total [as N]	monthly average 15 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Aug 1, 2030	9.73 mg/L (6 values)	0.649×
BOYLE PATRICK	PA0033316	PA	Industrial	.013 MGD	Nitrogen, ammonia total [as N]	monthly average 5 mg/L (May–Oct), new	Aug 1, 2030	under 3 values	—
BOYLE PATRICK	PA0033316	PA	Industrial	.013 MGD	Nitrogen, ammonia total [as N]	weekly average 7.5 mg/L (May–Oct), new	Aug 1, 2030	under 3 values	—
BOYLE PATRICK	PA0033316	PA	Industrial	.013 MGD	Nitrogen, ammonia total [as N]	weekly average 22 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), new	Aug 1, 2030	under 3 values	—
CAMP ALBRYOCA	PA0035483	PA	Industrial	.005 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 27.24 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2031	under 3 values	—
CAMP ALBRYOCA	PA0035483	PA	Industrial	.005 MGD	Nitrogen, ammonia total [as N]	instantaneous maximum 9.08 mg/L (May–Oct), tighter	Mar 1, 2031	under 3 values	—
CAMP ALBRYOCA	PA0035483	PA	Industrial	.005 MGD	Nitrogen, ammonia total [as N]	monthly average 13.62 mg/L (Jan, Feb, Mar, Apr, Nov, Dec), tighter	Mar 1, 2031	under 3 values	—
CAMP ALBRYOCA	PA0035483	PA	Industrial	.005 MGD	Nitrogen, ammonia total [as N]	monthly average 4.54 mg/L (May–Oct), tighter	Mar 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	monthly average 4.2 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new	Apr 1, 2031	2.59 mg/L (7 values)	0.617×
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	monthly average 56 lb/d (Jan, Feb, Mar, Apr, May, Nov, Dec), new	Apr 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	monthly average 1.4 mg/L (Jun–Oct), new	Apr 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	monthly average 18 lb/d (Jun–Oct), new	Apr 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	weekly average 8.4 mg/L (Jan, Feb, Mar, Apr, May, Nov, Dec), new	Apr 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	weekly average 112 lb/d (Jan, Feb, Mar, Apr, May, Nov, Dec), new	Apr 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	weekly average 37 lb/d (Jun–Oct), new	Apr 1, 2031	under 3 values	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Nitrogen, ammonia total [as N]	weekly average 2.8 mg/L (Jun–Oct), new	Apr 1, 2031	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=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

Plants facing new discharge limits — by state and pollutant