In Pennsylvania, for Copper, total [as Cu]: 48 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 (185 limits); 12 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 · PA 48 · IA 9 · TX 8 · LA 7 · OK 5 · SC 5 · CT 1 · GA 1 · MN 1

Plant	Permit	State	Type	Design flow	Parameter	New limit	Effective	Today's median	× limit
HARFORD TWP SUSQUEHANNA CNTY	PA0063100	PA	Sewage plant	.05 MGD	Copper, total [as Cu]	monthly average 28 ug/L, new	Jan 1, 2027	38.7 ug/L (9 values)	1.38×
SKYTOP LODGE CORP	PA0029874	PA	Industrial	.075 MGD	Copper, total [as Cu]	monthly average 0.058 mg/L, new	Apr 1, 2027	0.0621 mg/L (9 values)	1.07×
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Copper, total [as Cu]	monthly average 0.13 lb/d, new	Jun 1, 2027	13 lb/d (9 values, 4 below detection)	100×
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Copper, total [as Cu]	daily maximum 0.18 lb/d, new	Jun 1, 2027	15 lb/d (9 values)	83.3×
MUNI AUTH OF WESTMORELAND CNTY	PA0021148	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	monthly average 9.46 ug/L, new	Jun 1, 2027	12 ug/L (9 values)	1.27×
MUNI AUTH OF WESTMORELAND CNTY	PA0021148	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	daily maximum 0.18 lb/d, new	Jun 1, 2027	0.21 lb/d (9 values)	1.17×
MUNI AUTH OF WESTMORELAND CNTY	PA0021148	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	monthly average 0.12 lb/d, new	Jun 1, 2027	0.14 lb/d (9 values)	1.17×
MUNI AUTH OF WESTMORELAND CNTY	PA0021148	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	daily maximum 14.2 ug/L, new	Jun 1, 2027	15 ug/L (9 values)	1.06×
ARMSTRONG CNTY IND DEV AUTH	PA0218138	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	weekly average 0.016 mg/L, new	Sep 1, 2027	0.025 mg/L (8 values)	1.56×
ARMSTRONG CNTY IND DEV AUTH	PA0218138	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	monthly average 0.011 mg/L, new	Sep 1, 2027	0.014 mg/L (8 values, 2 below detection)	1.27×
MCCANDLESS TWP SANI AUTH ALLEGHENY CNTY	PA0028193	PA	Sewage plant	.094 MGD	Copper, total [as Cu]	monthly average 10.1 ug/L, tighter	Dec 1, 2027	18.5 ug/L (9 values, 1 below detection)	1.83×
MCCANDLESS TWP SANI AUTH ALLEGHENY CNTY	PA0028193	PA	Sewage plant	.094 MGD	Copper, total [as Cu]	daily maximum 17 ug/L, tighter	Dec 1, 2027	23 ug/L (9 values, 1 below detection)	1.35×
MCCANDLESS TWP SANI AUTH ALLEGHENY CNTY	PA0028193	PA	Sewage plant	.094 MGD	Copper, total [as Cu]	monthly average 0.008 lb/d, tighter	Dec 1, 2027	0.01 lb/d (9 values, 1 below detection)	1.25×
SLATINGTON JT CLIENT	PA0020176	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	daily maximum 51.4 ug/L, new	Dec 31, 2027	71 ug/L (9 values)	1.38×
SLATINGTON JT CLIENT	PA0020176	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	monthly average 43.2 ug/L, new	Dec 31, 2027	59.5 ug/L (9 values)	1.38×
WASHINGTON TWP MUNI AUTH CLARION CNTY	PA0023591	PA	Sewage plant	.085 MGD	Copper, total [as Cu]	monthly average 0.011 lb/d, new	Aug 1, 2028	7 lb/d (9 values)	636×
WASHINGTON TWP MUNI AUTH CLARION CNTY	PA0023591	PA	Sewage plant	.085 MGD	Copper, total [as Cu]	weekly average 0.017 lb/d, new	Aug 1, 2028	9 lb/d (9 values)	529×
WASHINGTON TWP MUNI AUTH CLARION CNTY	PA0023591	PA	Sewage plant	.085 MGD	Copper, total [as Cu]	monthly average 16.4 ug/L, new	Aug 1, 2028	33.9 ug/L (9 values)	2.07×
WASHINGTON TWP MUNI AUTH CLARION CNTY	PA0023591	PA	Sewage plant	.085 MGD	Copper, total [as Cu]	weekly average 24.6 ug/L, new	Aug 1, 2028	34.5 ug/L (9 values)	1.4×
MARY D COMM ASSN	PA0062855	PA	Industrial	.002 MGD	Copper, total [as Cu]	daily maximum 0.0001 lb/d, new	Sep 1, 2028	0.0003 lb/d (10 values)	3×
MARY D COMM ASSN	PA0062855	PA	Industrial	.002 MGD	Copper, total [as Cu]	monthly average 0.00007 lb/d, new	Sep 1, 2028	0.0002 lb/d (10 values, 1 below detection)	2.86×
MARY D COMM ASSN	PA0062855	PA	Industrial	.002 MGD	Copper, total [as Cu]	daily maximum 0.009 mg/L, new	Sep 1, 2028	0.02 mg/L (10 values)	2.22×
MARY D COMM ASSN	PA0062855	PA	Industrial	.002 MGD	Copper, total [as Cu]	monthly average 0.01 mg/L, new	Sep 1, 2028	0.02 mg/L (10 values, 1 below detection)	2×
NORTH AMER HOGANAS INC	PA0110655	PA	Industrial	1.42 MGD	Copper, total [as Cu]	monthly average 0.21 mg/L, new	Apr 1, 2029	0.73 mg/L (3 values)	3.48×
NORTH AMER HOGANAS INC	PA0110655	PA	Industrial	1.42 MGD	Copper, total [as Cu]	daily maximum 0.33 mg/L, new	Apr 1, 2029	0.91 mg/L (3 values)	2.76×
AQUA PA WASTEWATER INC	PA0061204	PA	Industrial	.4 MGD	Copper, total [as Cu]	monthly average 0.012 mg/L, new	Jun 1, 2029	0.093 mg/L (9 values, 2 below detection)	7.75×
AQUA PA WASTEWATER INC	PA0061204	PA	Industrial	.4 MGD	Copper, total [as Cu]	monthly average 0.04 lb/d, new	Jun 1, 2029	0.094 lb/d (9 values, 2 below detection)	2.35×
RINGTOWN BORO SEW AUTH SCHUYLKILL CNTY	PA0043044	PA	Sewage plant	.125 MGD	Copper, total [as Cu]	monthly average 0.022 mg/L, new	Nov 1, 2029	0.0542 mg/L (7 values)	2.46×
RINGTOWN BORO SEW AUTH SCHUYLKILL CNTY	PA0043044	PA	Sewage plant	.125 MGD	Copper, total [as Cu]	daily maximum 0.036 lb/d, new	Nov 1, 2029	0.08 lb/d (7 values)	2.22×
RINGTOWN BORO SEW AUTH SCHUYLKILL CNTY	PA0043044	PA	Sewage plant	.125 MGD	Copper, total [as Cu]	monthly average 0.023 lb/d, new	Nov 1, 2029	0.05 lb/d (7 values)	2.17×
RINGTOWN BORO SEW AUTH SCHUYLKILL CNTY	PA0043044	PA	Sewage plant	.125 MGD	Copper, total [as Cu]	daily maximum 0.034 mg/L, new	Nov 1, 2029	0.0584 mg/L (7 values)	1.72×
HARFORD TWP SUSQUEHANNA CNTY	PA0063100	PA	Sewage plant	.05 MGD	Copper, total [as Cu]	daily maximum 43.6 ug/L, new	Jan 1, 2027	38.7 ug/L (9 values)	0.888×
HARFORD TWP SUSQUEHANNA CNTY	PA0063100	PA	Sewage plant	.05 MGD	Copper, total [as Cu]	monthly average 0.012 lb/d, new	Jan 1, 2027	0.0058 lb/d (9 values)	0.483×
HARFORD TWP SUSQUEHANNA CNTY	PA0063100	PA	Sewage plant	.05 MGD	Copper, total [as Cu]	daily maximum 0.018 lb/d, new	Jan 1, 2027	0.0058 lb/d (9 values)	0.322×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Copper, total [as Cu]	daily maximum 25.4 ug/L, new	Feb 1, 2027	16 ug/L (9 values)	0.63×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Copper, total [as Cu]	monthly average 18.5 ug/L, new	Feb 1, 2027	11.5 ug/L (9 values)	0.622×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Copper, total [as Cu]	monthly average 1.3 lb/d, new	Feb 1, 2027	0.3 lb/d (9 values)	0.231×
CANONSBURG HOUSTON JT AUTH	PA0025941	PA	Sewage plant, major	14.4 MGD	Copper, total [as Cu]	daily maximum 1.78 lb/d, new	Feb 1, 2027	0.4 lb/d (9 values)	0.225×
SKYTOP LODGE CORP	PA0029874	PA	Industrial	.075 MGD	Copper, total [as Cu]	daily maximum 0.091 mg/L, new	Apr 1, 2027	0.0768 mg/L (9 values)	0.844×
SKYTOP LODGE CORP	PA0029874	PA	Industrial	.075 MGD	Copper, total [as Cu]	daily maximum 0.056 lb/d, new	Apr 1, 2027	under 3 values	—
SKYTOP LODGE CORP	PA0029874	PA	Industrial	.075 MGD	Copper, total [as Cu]	monthly average 0.036 lb/d, new	Apr 1, 2027	under 3 values	—
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Copper, total [as Cu]	monthly average 28.8 ug/L, new	Jun 1, 2027	10 ug/L (9 values, 4 below detection)	0.347×
SCHUYLKILL VALLEY SEW AUTH	PA0064211	PA	Sewage plant	.55 MGD	Copper, total [as Cu]	daily maximum 38.8 ug/L, new	Jun 1, 2027	10 ug/L (9 values)	0.258×
SMITHFIELD TWP MONROE CNTY	PA0061361	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	daily maximum 0.032 mg/L, new	Jun 1, 2027	0.0065 mg/L (8 values, 2 below detection)	0.203×
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	daily maximum 0.45 lb/d, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	daily maximum 0.012 mg/L, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	monthly average 0.26 lb/d, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	monthly average 0.0069 mg/L, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	daily maximum 0.15 lb/d, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	daily maximum 0.012 mg/L, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	monthly average 0.0069 mg/L, new	Jun 1, 2027	under 3 values	—
PA AMER WATER CO	PA0210161	PA	Industrial	6 MGD	Copper, total [as Cu]	monthly average 0.086 lb/d, new	Jun 1, 2027	under 3 values	—
SMITHFIELD TWP MONROE CNTY	PA0061361	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	daily maximum 0.11 lb/d, new	Jun 1, 2027	under 3 values	—
SMITHFIELD TWP MONROE CNTY	PA0061361	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	monthly average 0.021 mg/L, new	Jun 1, 2027	0.006 mg/L (8 values, 5 below detection)	—
SMITHFIELD TWP MONROE CNTY	PA0061361	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	monthly average 0.069 lb/d, new	Jun 1, 2027	0.007 lb/d (8 values, 5 below detection)	—
REPUBLIC SVC OF PA LLC	PA0046680	PA	Industrial	.5 MGD	Copper, total [as Cu]	daily maximum 0.085 mg/L, new	Jul 1, 2027	0.005 mg/L (9 values, 9 below detection)	—
REPUBLIC SVC OF PA LLC	PA0046680	PA	Industrial	.5 MGD	Copper, total [as Cu]	daily maximum 0.35 lb/d, new	Jul 1, 2027	under 3 values	—
REPUBLIC SVC OF PA LLC	PA0046680	PA	Industrial	.5 MGD	Copper, total [as Cu]	monthly average 0.23 lb/d, new	Jul 1, 2027	under 3 values	—
REPUBLIC SVC OF PA LLC	PA0046680	PA	Industrial	.5 MGD	Copper, total [as Cu]	monthly average 0.055 mg/L, new	Jul 1, 2027	0.005 mg/L (9 values, 9 below detection)	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	monthly average 4 ug/L, new	Sep 1, 2027	2.3 ug/L (3 values)	0.575×
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	daily maximum 5.08 ug/L, new	Sep 1, 2027	2.3 ug/L (3 values)	0.453×
ARMSTRONG CNTY IND DEV AUTH	PA0218138	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	monthly average 0.036 lb/d, new	Sep 1, 2027	0.007 lb/d (8 values, 1 below detection)	0.194×
ARMSTRONG CNTY IND DEV AUTH	PA0218138	PA	Sewage plant	.4 MGD	Copper, total [as Cu]	weekly average 0.054 lb/d, new	Sep 1, 2027	0.01 lb/d (8 values, 1 below detection)	0.185×
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	daily maximum 5.76 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	monthly average 4.21 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	daily maximum 6.21 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	monthly average 4.53 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	daily maximum 4 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	monthly average 4 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	daily maximum 23.1 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	monthly average 14.8 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	daily maximum 4.85 ug/L, new	Sep 1, 2027	under 3 values	—
CURTISS WRIGHT CORP	PA0001228	PA	Industrial	.55 MGD	Copper, total [as Cu]	monthly average 4 ug/L, new	Sep 1, 2027	under 3 values	—
SCHUYLKILL HAVEN BORO WATER AUTH SCHUYLKILL CNTY	PA0029017	PA	Sewage plant, major	2.8 MGD	Copper, total [as Cu]	monthly average 0.026 mg/L, new	Nov 1, 2027	0.013 mg/L (9 values)	0.5×
SCHUYLKILL HAVEN BORO WATER AUTH SCHUYLKILL CNTY	PA0029017	PA	Sewage plant, major	2.8 MGD	Copper, total [as Cu]	daily maximum 0.04 mg/L, new	Nov 1, 2027	0.018 mg/L (9 values)	0.45×
SCHUYLKILL HAVEN BORO WATER AUTH SCHUYLKILL CNTY	PA0029017	PA	Sewage plant, major	2.8 MGD	Copper, total [as Cu]	monthly average 0.6 lb/d, new	Nov 1, 2027	0.1 lb/d (9 values)	0.167×
SCHUYLKILL HAVEN BORO WATER AUTH SCHUYLKILL CNTY	PA0029017	PA	Sewage plant, major	2.8 MGD	Copper, total [as Cu]	daily maximum 0.93 lb/d, new	Nov 1, 2027	0.1 lb/d (9 values)	0.108×
MCCANDLESS TWP SANI AUTH ALLEGHENY CNTY	PA0028193	PA	Sewage plant	.094 MGD	Copper, total [as Cu]	daily maximum 0.014 lb/d, tighter	Dec 1, 2027	0.01 lb/d (9 values, 1 below detection)	0.714×
NEW MORGAN BORO BERKS CNTY	PA0088048	PA	Sewage plant	.2 MGD	Copper, total [as Cu]	daily maximum 0.047 mg/L, new	Dec 1, 2027	0.0275 mg/L (8 values)	0.585×
NEW MORGAN BORO BERKS CNTY	PA0088048	PA	Sewage plant	.2 MGD	Copper, total [as Cu]	daily maximum 0.078 lb/d, new	Dec 1, 2027	0.00125 lb/d (6 values)	0.016×
NEW MORGAN BORO BERKS CNTY	PA0088048	PA	Sewage plant	.2 MGD	Copper, total [as Cu]	monthly average 0.029 mg/L, new	Dec 1, 2027	under 3 values	—
NEW MORGAN BORO BERKS CNTY	PA0088048	PA	Sewage plant	.2 MGD	Copper, total [as Cu]	monthly average 0.048 lb/d, new	Dec 1, 2027	under 3 values	—
SLATINGTON JT CLIENT	PA0020176	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	monthly average 0.54 lb/d, new	Dec 31, 2027	0.32 lb/d (9 values)	0.593×
SLATINGTON JT CLIENT	PA0020176	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	daily maximum 0.64 lb/d, new	Dec 31, 2027	0.37 lb/d (9 values)	0.578×
NORTHAMPTON BORO NORTHAMPTON CNTY	PA0031127	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	monthly average 0.037 mg/L, new	Jan 1, 2028	0.0077 mg/L (8 values)	0.208×
NORTHAMPTON BORO NORTHAMPTON CNTY	PA0031127	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	daily maximum 0.059 mg/L, new	Jan 1, 2028	0.0077 mg/L (8 values)	0.131×
NORTHAMPTON BORO NORTHAMPTON CNTY	PA0031127	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	monthly average 0.46 lb/d, new	Jan 1, 2028	0.0545 lb/d (8 values)	0.118×
NORTHAMPTON BORO NORTHAMPTON CNTY	PA0031127	PA	Sewage plant, major	1.5 MGD	Copper, total [as Cu]	daily maximum 0.73 lb/d, new	Jan 1, 2028	0.0545 lb/d (8 values)	0.0747×
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTY	PA0025224	PA	Sewage plant	.75 MGD	Copper, total [as Cu]	daily maximum 0.034 mg/L, new	Mar 1, 2028	0.02 mg/L (9 values, 1 below detection)	0.588×
UWCHLAN TWP MUNI AUTH CHESTER CNTY	PA0054917	PA	Sewage plant	.475 MGD	Copper, total [as Cu]	quarterly average 0.028 mg/L, new	Mar 1, 2028	0.013 mg/L (3 values)	0.464×
UWCHLAN TWP MUNI AUTH CHESTER CNTY	PA0054917	PA	Sewage plant	.475 MGD	Copper, total [as Cu]	daily maximum 0.043 mg/L, new	Mar 1, 2028	0.013 mg/L (3 values)	0.302×
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTY	PA0025224	PA	Sewage plant	.75 MGD	Copper, total [as Cu]	daily maximum 0.21 lb/d, new	Mar 1, 2028	0.06 lb/d (9 values)	0.286×
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTY	PA0025224	PA	Sewage plant	.75 MGD	Copper, total [as Cu]	monthly average 0.16 lb/d, new	Mar 1, 2028	0.03 lb/d (9 values, 7 below detection)	—
SAINT CLAIR BORO SEW AUTH SCHUYLKILL CNTY	PA0025224	PA	Sewage plant	.75 MGD	Copper, total [as Cu]	monthly average 0.025 mg/L, new	Mar 1, 2028	0.01 mg/L (9 values, 6 below detection)	—
UWCHLAN TWP MUNI AUTH CHESTER CNTY	PA0054917	PA	Sewage plant	.475 MGD	Copper, total [as Cu]	daily maximum 0.17 lb/d, new	Mar 1, 2028	under 3 values	—
UWCHLAN TWP MUNI AUTH CHESTER CNTY	PA0054917	PA	Sewage plant	.475 MGD	Copper, total [as Cu]	quarterly average 0.11 lb/d, new	Mar 1, 2028	under 3 values	—
UPPER BERN TWP BERKS CNTY	PA0088251	PA	Sewage plant	.155 MGD	Copper, total [as Cu]	monthly average 0.01 mg/L, new	May 1, 2028	0.0095 mg/L (8 values)	0.95×
UPPER BERN TWP BERKS CNTY	PA0088251	PA	Sewage plant	.155 MGD	Copper, total [as Cu]	daily maximum 0.016 mg/L, new	May 1, 2028	0.013 mg/L (8 values)	0.812×
UPPER BERN TWP BERKS CNTY	PA0088251	PA	Sewage plant	.155 MGD	Copper, total [as Cu]	monthly average 0.013 lb/d, new	May 1, 2028	0.0055 lb/d (8 values)	0.423×
UPPER BERN TWP BERKS CNTY	PA0088251	PA	Sewage plant	.155 MGD	Copper, total [as Cu]	daily maximum 0.02 lb/d, new	May 1, 2028	0.006 lb/d (8 values)	0.3×
SCHUYLKILL CNTY MUNI AUTH	PA0042951	PA	Sewage plant	.5 MGD	Copper, total [as Cu]	monthly average 0.021 mg/L, new	May 1, 2028	0.006 mg/L (9 values)	0.286×
SCHUYLKILL CNTY MUNI AUTH	PA0042951	PA	Sewage plant	.5 MGD	Copper, total [as Cu]	daily maximum 0.033 mg/L, new	May 1, 2028	0.009 mg/L (9 values)	0.273×
WIND GAP BORO MUNI AUTH NORTHAMPTON CNTY	PA0052167	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	monthly average 0.012 mg/L, new	May 1, 2028	0.003 mg/L (9 values)	0.25×
WIND GAP BORO MUNI AUTH NORTHAMPTON CNTY	PA0052167	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	daily maximum 0.018 mg/L, new	May 1, 2028	0.004 mg/L (9 values)	0.222×
WIND GAP BORO MUNI AUTH NORTHAMPTON CNTY	PA0052167	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	monthly average 0.1 lb/d, new	May 1, 2028	0.0123 lb/d (9 values)	0.123×
WIND GAP BORO MUNI AUTH NORTHAMPTON CNTY	PA0052167	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	daily maximum 0.15 lb/d, new	May 1, 2028	0.0161 lb/d (9 values)	0.107×
PETERS TWP SANI AUTH WASHINGTON CNTY	PA0028711	PA	Sewage plant, major	2.3 MGD	Copper, total [as Cu]	monthly average 15.9 ug/L, new	Jul 1, 2028	8.3 ug/L (9 values, 1 below detection)	0.522×
BESSEMER MUNI AUTH	PA0210471	PA	Sewage plant	.35 MGD	Copper, total [as Cu]	monthly average 0.022 mg/L, new	Jul 1, 2028	0.01 mg/L (8 values, 1 below detection)	0.455×
PETERS TWP SANI AUTH WASHINGTON CNTY	PA0028711	PA	Sewage plant, major	2.3 MGD	Copper, total [as Cu]	daily maximum 24.8 ug/L, new	Jul 1, 2028	11 ug/L (9 values)	0.444×
ROBESONIA WERNERSVILLE MUNI AUTH BERKS CNTY	PA0031062	PA	Sewage plant, major	1.4 MGD	Copper, total [as Cu]	daily maximum 0.047 mg/L, new	Jul 1, 2028	0.02 mg/L (9 values)	0.426×
ROBESONIA WERNERSVILLE MUNI AUTH BERKS CNTY	PA0031062	PA	Sewage plant, major	1.4 MGD	Copper, total [as Cu]	monthly average 0.034 mg/L, new	Jul 1, 2028	0.0122 mg/L (9 values)	0.359×
BESSEMER MUNI AUTH	PA0210471	PA	Sewage plant	.35 MGD	Copper, total [as Cu]	daily maximum 0.035 mg/L, new	Jul 1, 2028	0.0125 mg/L (8 values)	0.357×
MOUNTAINTOP AREA JT SANI AUTH LUZERNE CNTY	PA0045985	PA	Sewage plant, major	4.16 MGD	Copper, total [as Cu]	monthly average 0.32 lb/d, new	Jul 1, 2028	0.095 lb/d (8 values)	0.297×
PETERS TWP SANI AUTH WASHINGTON CNTY	PA0028711	PA	Sewage plant, major	2.3 MGD	Copper, total [as Cu]	monthly average 0.3 lb/d, new	Jul 1, 2028	0.0775 lb/d (9 values, 1 below detection)	0.258×
BESSEMER MUNI AUTH	PA0210471	PA	Sewage plant	.35 MGD	Copper, total [as Cu]	monthly average 0.065 lb/d, new	Jul 1, 2028	0.015 lb/d (8 values, 1 below detection)	0.231×
PETERS TWP SANI AUTH WASHINGTON CNTY	PA0028711	PA	Sewage plant, major	2.3 MGD	Copper, total [as Cu]	daily maximum 0.48 lb/d, new	Jul 1, 2028	0.11 lb/d (9 values, 1 below detection)	0.229×
ROBESONIA WERNERSVILLE MUNI AUTH BERKS CNTY	PA0031062	PA	Sewage plant, major	1.4 MGD	Copper, total [as Cu]	monthly average 0.4 lb/d, new	Jul 1, 2028	0.09 lb/d (9 values)	0.225×
BESSEMER MUNI AUTH	PA0210471	PA	Sewage plant	.35 MGD	Copper, total [as Cu]	daily maximum 0.1 lb/d, new	Jul 1, 2028	0.02 lb/d (8 values)	0.2×
MOUNTAINTOP AREA JT SANI AUTH LUZERNE CNTY	PA0045985	PA	Sewage plant, major	4.16 MGD	Copper, total [as Cu]	daily maximum 0.58 lb/d, new	Jul 1, 2028	0.1 lb/d (8 values)	0.172×
ROBESONIA WERNERSVILLE MUNI AUTH BERKS CNTY	PA0031062	PA	Sewage plant, major	1.4 MGD	Copper, total [as Cu]	daily maximum 0.55 lb/d, new	Jul 1, 2028	0.09 lb/d (9 values)	0.164×
MOUNTAINTOP AREA JT SANI AUTH LUZERNE CNTY	PA0045985	PA	Sewage plant, major	4.16 MGD	Copper, total [as Cu]	monthly average 9.2 ug/L, new	Jul 1, 2028	0.0045 ug/L (8 values)	0.000489×
MOUNTAINTOP AREA JT SANI AUTH LUZERNE CNTY	PA0045985	PA	Sewage plant, major	4.16 MGD	Copper, total [as Cu]	daily maximum 16.6 ug/L, new	Jul 1, 2028	0.00588 ug/L (8 values)	0.000354×
PA AMER WATER CO	PA0060526	PA	Industrial	.145 MGD	Copper, total [as Cu]	daily maximum 0.54 mg/L, new	Aug 1, 2028	under 3 values	—
PA AMER WATER CO	PA0060526	PA	Industrial	.145 MGD	Copper, total [as Cu]	instantaneous maximum 0.3 lb/d, new	Aug 1, 2028	under 3 values	—
PA AMER WATER CO	PA0060526	PA	Industrial	.145 MGD	Copper, total [as Cu]	monthly average 0.2 lb/d, new	Aug 1, 2028	under 3 values	—
PA AMER WATER CO	PA0060526	PA	Industrial	.145 MGD	Copper, total [as Cu]	monthly average 0.35 mg/L, new	Aug 1, 2028	under 3 values	—
WYOMING CNTY HEALTHCARE CENTER INC.	PA0036765	PA	Industrial	.024 MGD	Copper, total [as Cu]	daily maximum 0.022 mg/L, new	Nov 1, 2028	0.021 mg/L (6 values, 4 below detection)	—
WYOMING CNTY HEALTHCARE CENTER INC.	PA0036765	PA	Industrial	.024 MGD	Copper, total [as Cu]	daily maximum 0.004 lb/d, new	Nov 1, 2028	0.001 lb/d (6 values, 5 below detection)	—
WYOMING CNTY HEALTHCARE CENTER INC.	PA0036765	PA	Industrial	.024 MGD	Copper, total [as Cu]	monthly average 0.003 lb/d, new	Nov 1, 2028	0.00095 lb/d (6 values, 5 below detection)	—
WYOMING CNTY HEALTHCARE CENTER INC.	PA0036765	PA	Industrial	.024 MGD	Copper, total [as Cu]	monthly average 0.014 mg/L, new	Nov 1, 2028	0.0215 mg/L (6 values, 5 below detection)	—
PA DPW	PA0029432	PA	Industrial	.395 MGD	Copper, total [as Cu]	daily maximum 0.025 mg/L, new	Jan 1, 2029	under 3 values	—
PA DPW	PA0029432	PA	Industrial	.395 MGD	Copper, total [as Cu]	daily maximum 0.084 lb/d, new	Jan 1, 2029	under 3 values	—
PA DPW	PA0029432	PA	Industrial	.395 MGD	Copper, total [as Cu]	monthly average 0.016 mg/L, new	Jan 1, 2029	under 3 values	—
PA DPW	PA0029432	PA	Industrial	.395 MGD	Copper, total [as Cu]	monthly average 0.054 lb/d, new	Jan 1, 2029	under 3 values	—
W MIFFLIN SANI SEW & STORMWATER AUTH ALLEGHENY CNTY	PA0026522	PA	Sewage plant, major	1.2 MGD	Copper, total [as Cu]	monthly average 9.37 ug/L, new	Apr 1, 2029	5 ug/L (3 values, 1 below detection)	0.534×
PA DEPT OF CORR	PA0030139	PA	Industrial	.45 MGD	Copper, total [as Cu]	monthly average 0.014 mg/L, new	Apr 1, 2029	0.005815 mg/L (9 values, 1 below detection)	0.415×
W MIFFLIN SANI SEW & STORMWATER AUTH ALLEGHENY CNTY	PA0026522	PA	Sewage plant, major	1.2 MGD	Copper, total [as Cu]	daily maximum 14 ug/L, new	Apr 1, 2029	5 ug/L (3 values, 1 below detection)	0.357×
PA DEPT OF CORR	PA0030139	PA	Industrial	.45 MGD	Copper, total [as Cu]	monthly average 0.05 lb/d, new	Apr 1, 2029	0.0123 lb/d (9 values, 1 below detection)	0.246×
W MIFFLIN SANI SEW & STORMWATER AUTH ALLEGHENY CNTY	PA0026522	PA	Sewage plant, major	1.2 MGD	Copper, total [as Cu]	monthly average 0.094 lb/d, new	Apr 1, 2029	under 3 values	—
W MIFFLIN SANI SEW & STORMWATER AUTH ALLEGHENY CNTY	PA0026522	PA	Sewage plant, major	1.2 MGD	Copper, total [as Cu]	weekly average 0.14 lb/d, new	Apr 1, 2029	under 3 values	—
GREATER POTTSVILLE AREA SEWER AUTH SCHUYLKILL CNTY	PA0043885	PA	Sewage plant, major	8.2 MGD	Copper, total [as Cu]	monthly average 0.017 mg/L, tighter	May 1, 2029	0.008 mg/L (9 values)	0.471×
GREATER POTTSVILLE AREA SEWER AUTH SCHUYLKILL CNTY	PA0043885	PA	Sewage plant, major	8.2 MGD	Copper, total [as Cu]	daily maximum 0.026 mg/L, tighter	May 1, 2029	0.011 mg/L (9 values)	0.423×
GREATER POTTSVILLE AREA SEWER AUTH SCHUYLKILL CNTY	PA0043885	PA	Sewage plant, major	8.2 MGD	Copper, total [as Cu]	daily maximum 1.77 lb/d, tighter	May 1, 2029	0.3403 lb/d (9 values)	0.192×
GREATER POTTSVILLE AREA SEWER AUTH SCHUYLKILL CNTY	PA0043885	PA	Sewage plant, major	8.2 MGD	Copper, total [as Cu]	monthly average 1.16 lb/d, tighter	May 1, 2029	0.2188 lb/d (9 values)	0.189×
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTY	PA0070386	PA	Sewage plant, major	2 MGD	Copper, total [as Cu]	daily maximum 0.27 lb/d, new	Jun 1, 2029	under 3 values	—
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTY	PA0070386	PA	Sewage plant, major	2 MGD	Copper, total [as Cu]	daily maximum 16.5 ug/L, new	Jun 1, 2029	under 3 values	—
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTY	PA0070386	PA	Sewage plant, major	2 MGD	Copper, total [as Cu]	monthly average 0.18 lb/d, new	Jun 1, 2029	under 3 values	—
SHENANDOAH MUNI SEW AUTH SCHUYLKILL CNTY	PA0070386	PA	Sewage plant, major	2 MGD	Copper, total [as Cu]	monthly average 11.1 ug/L, new	Jun 1, 2029	under 3 values	—
SHOHOLA FALLS TRAILS END	PA0060577	PA	Industrial	.205 MGD	Copper, total [as Cu]	daily maximum 0.017 mg/L, new	Jun 1, 2029	0.00715 mg/L (8 values, 4 below detection)	—
SHOHOLA FALLS TRAILS END	PA0060577	PA	Industrial	.205 MGD	Copper, total [as Cu]	monthly average 0.011 mg/L, new	Jun 1, 2029	0.00705 mg/L (8 values, 8 below detection)	—
MONTOUR LLC	PA0008443	PA	Industrial, major	2.76 MGD	Copper, total [as Cu]	monthly average 39.2 ug/L, new	Aug 1, 2029	17.6 ug/L (9 values)	0.449×
MONTOUR LLC	PA0008443	PA	Industrial, major	2.76 MGD	Copper, total [as Cu]	daily maximum 61.2 ug/L, new	Aug 1, 2029	24.4 ug/L (9 values)	0.399×
PA AMER WATER CO	PA0062464	PA	Industrial	.275 MGD	Copper, total [as Cu]	monthly average 0.016 mg/L, new	Aug 1, 2029	0.006 mg/L (9 values, 1 below detection)	0.375×
PA AMER WATER CO	PA0062464	PA	Industrial	.275 MGD	Copper, total [as Cu]	daily maximum 0.024 mg/L, new	Aug 1, 2029	0.007 mg/L (9 values)	0.292×
PA AMER WATER CO	PA0062464	PA	Industrial	.275 MGD	Copper, total [as Cu]	monthly average 0.036 lb/d, new	Aug 1, 2029	0.005 lb/d (9 values)	0.139×
PA AMER WATER CO	PA0062464	PA	Industrial	.275 MGD	Copper, total [as Cu]	daily maximum 0.055 lb/d, new	Aug 1, 2029	0.006 lb/d (9 values)	0.109×
PALMERTON BORO MUNI AUTH CARBON CNTY	PA0023051	PA	Sewage plant	.75 MGD	Copper, total [as Cu]	monthly average 0.058 mg/L, new	Sep 1, 2029	0.00802 mg/L (9 values)	0.138×
PALMERTON BORO MUNI AUTH CARBON CNTY	PA0023051	PA	Sewage plant	.75 MGD	Copper, total [as Cu]	daily maximum 0.091 mg/L, new	Sep 1, 2029	under 3 values	—
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Copper, total [as Cu]	monthly average 0.015 lb/d, new	Dec 1, 2029	0.002 lb/d (6 values)	0.133×
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Copper, total [as Cu]	daily maximum 0.018 lb/d, new	Dec 1, 2029	0.002 lb/d (6 values)	0.111×
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Copper, total [as Cu]	monthly average 0.03 mg/L, new	Dec 1, 2029	0.000036 mg/L (6 values)	0.0012×
BLUE RIDGE REAL ESTATE CO	PA0034118	PA	Industrial	.4 MGD	Copper, total [as Cu]	daily maximum 0.03 mg/L, new	Dec 1, 2029	0.0000352 mg/L (6 values)	0.00117×
HAMPTON TWP ALLEGHENY CNTY	PA0043729	PA	Sewage plant, major	3.2 MGD	Copper, total [as Cu]	monthly average 24.3 ug/L, new	Feb 1, 2030	10 ug/L (9 values)	0.412×
HAMPTON TWP ALLEGHENY CNTY	PA0043729	PA	Sewage plant, major	3.2 MGD	Copper, total [as Cu]	daily maximum 38 ug/L, new	Feb 1, 2030	10 ug/L (9 values)	0.263×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	monthly average 21.1 ug/L, new	Apr 1, 2030	6 ug/L (3 values)	0.284×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	monthly average 0.18 lb/d, new	Apr 1, 2030	0.03 lb/d (3 values)	0.167×
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	weekly average 32.8 ug/L, new	Apr 1, 2030	under 3 values	—
ROBINSON TWP MUNI AUTH ALLEGHENY CNTY	PA0036293	PA	Sewage plant, major	1 MGD	Copper, total [as Cu]	weekly average 0.27 lb/d, new	Apr 1, 2030	under 3 values	—
FRENCHCREEK TWP VENANGO CNTY	PA0030104	PA	Industrial	.45 MGD	Copper, total [as Cu]	monthly average 0.02 mg/L, new	Jul 1, 2030	0.018 mg/L (9 values)	0.9×
FRENCHCREEK TWP VENANGO CNTY	PA0030104	PA	Industrial	.45 MGD	Copper, total [as Cu]	daily maximum 0.032 mg/L, new	Jul 1, 2030	0.022 mg/L (9 values)	0.688×
FRENCHCREEK TWP VENANGO CNTY	PA0030104	PA	Industrial	.45 MGD	Copper, total [as Cu]	monthly average 0.077 lb/d, new	Jul 1, 2030	0.03 lb/d (9 values)	0.39×
FRENCHCREEK TWP VENANGO CNTY	PA0030104	PA	Industrial	.45 MGD	Copper, total [as Cu]	daily maximum 0.12 lb/d, new	Jul 1, 2030	0.04 lb/d (9 values)	0.333×
TOWAMENCIN MUNICIPAL AUTHORITY	PA0039004	PA	Sewage plant, major	19.5 MGD	Copper, total [as Cu]	monthly average 0.01 mg/L, tighter	Aug 1, 2030	0.005 mg/L (9 values)	0.5×
TOWAMENCIN MUNICIPAL AUTHORITY	PA0039004	PA	Sewage plant, major	19.5 MGD	Copper, total [as Cu]	daily maximum 0.015 mg/L, tighter	Aug 1, 2030	0.006 mg/L (9 values)	0.4×
TOWAMENCIN MUNICIPAL AUTHORITY	PA0039004	PA	Sewage plant, major	19.5 MGD	Copper, total [as Cu]	daily maximum 0.81 lb/d, tighter	Aug 1, 2030	0.24 lb/d (9 values)	0.296×
TOWAMENCIN MUNICIPAL AUTHORITY	PA0039004	PA	Sewage plant, major	19.5 MGD	Copper, total [as Cu]	monthly average 0.54 lb/d, tighter	Aug 1, 2030	0.15 lb/d (9 values)	0.278×
UPPER MORELAND HATBORO JT SEW AUTH	PA0025976	PA	Sewage plant, major	7.189 MGD	Copper, total [as Cu]	monthly average 0.0233 mg/L, tighter	Oct 1, 2030	0.015 mg/L (9 values)	0.644×
WASHINGTON TWP & EAST WASHINGTON BORO JT AUTH WASHINGTON CNTY	PA0026212	PA	Sewage plant, major	9.77 MGD	Copper, total [as Cu]	daily maximum 2.4 lb/d, new	Jan 1, 2031	0.95 lb/d (4 values)	0.396×
WASHINGTON TWP & EAST WASHINGTON BORO JT AUTH WASHINGTON CNTY	PA0026212	PA	Sewage plant, major	9.77 MGD	Copper, total [as Cu]	daily maximum 29.5 ug/L, new	Jan 1, 2031	8.8 ug/L (4 values)	0.298×
WASHINGTON TWP & EAST WASHINGTON BORO JT AUTH WASHINGTON CNTY	PA0026212	PA	Sewage plant, major	9.77 MGD	Copper, total [as Cu]	monthly average 1.86 lb/d, new	Jan 1, 2031	0.6 lb/d (4 values, 2 below detection)	—
WASHINGTON TWP & EAST WASHINGTON BORO JT AUTH WASHINGTON CNTY	PA0026212	PA	Sewage plant, major	9.77 MGD	Copper, total [as Cu]	monthly average 22.8 ug/L, new	Jan 1, 2031	5.8 ug/L (4 values, 2 below detection)	—
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Copper, total [as Cu]	monthly average 17 ug/L, tighter	Apr 1, 2031	10.48 ug/L (9 values)	0.616×
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Copper, total [as Cu]	daily maximum 27 ug/L, tighter	Apr 1, 2031	14 ug/L (9 values)	0.519×
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Copper, total [as Cu]	monthly average 0.23 lb/d, tighter	Apr 1, 2031	0.08 lb/d (9 values)	0.348×
PINE CREEK MUNI AUTH CLINTON CNTY	PA0027553	PA	Sewage plant, major	1.6 MGD	Copper, total [as Cu]	daily maximum 0.36 lb/d, tighter	Apr 1, 2031	0.1 lb/d (9 values)	0.278×

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