How many wastewater permits expire in Pennsylvania in 2028?

73 NPDES permits held by publicly owned wastewater treatment plants in Pennsylvania expire in 2028, covering a combined average flow of 40 MGD. The busiest month is Feb 2028 with 10 expiries.

What happens when an NPDES permit expires?

The plant must have applied for renewal at least 180 days before the expiry date. If the agency has not reissued the permit by then, the old permit is administratively continued and stays enforceable. The reissued permit typically carries updated effluent limits based on the latest water-quality standards, which is what drives upgrade projects.

Which is the largest plant with a permit expiring in Pennsylvania in 2028?

Reading STP in Reading, treating about 14.09 MGD under permit PA0026549, expiring Apr 2028.

How do I get contacts for the plants on this list?

Every plant links to its profile with flow, technology and compliance data. Verified decision-maker contacts for each plant, and the same list for every state and year, are available in Klarifi with a free trial.

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Pennsylvania wastewater permits expiring in 2028

Name: Pennsylvania NPDES permits expiring in 2028
Creator: Klarifi
License: https://klarifi.io/terms-of-service

73 NPDES permits · 40 MGD combined average flow

73 publicly owned wastewater treatment plants in Pennsylvania hold NPDES permits that expire during 2028, issued by Pennsylvania Department of Environmental Protection. The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.

An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.

Other years:

2026 (95)2027 (109)All Pennsylvania NPDES permits →

Publicly owned wastewater treatment plants in Pennsylvania with NPDES permits expiring in 2028, from EPA ICIS-NPDES records. Refreshed on every release.
Facility	City	Avg flow (MGD)	NPDES permit	Expires	Technology	Violations (3y)
Leonard L Nary WWTP @ Montour Run	Coraopolis	2.56	PA0028801	Jan 2028	Clarifiers, Biogas silos	8
Veterans Center STP	Pipersville	0.18	PA0050466	Jan 2028	Uncovered lagoons	23
St Thomas Twp STP	Chambersburg	0.16	PA0081001	Jan 2028	—	13
Williamstown STP	Jefferson	0.13	PA0096601	Jan 2028	Aerated lagoons	7
Clearfield Mun Sew Sys STP	Clearfield	1.13	PA0026310	Feb 2028	Clarifiers, Uncovered lagoons	1
Sewickley Boro	Sewickley	0.61	PA0020681	Feb 2028	Clarifiers	4
Conewago Twp STP	York	0.32	PA0084425	Feb 2028	—	12
Berlin Boro STP	Berlin	0.18	PA0021822	Feb 2028	Clarifiers	45
Mid Mon Vly Wpca STP	Allenport	0.17	PA0024686	Feb 2028	—	146
Western Clinton Cnty Muni Authority	Renovo	0.13	PA0043893	Feb 2028	Clarifiers, Carrousels / oxidation ditches	1
Rimersburg Boro STP	Rimersburg	0.08	PA0038156	Feb 2028	—	59
Eldred Boro STP	Eldred	0.05	PA0020052	Feb 2028	—	14
Mt Morris STP	Mt Morris	0.03	PA0096512	Feb 2028	—	37
Burnt Cabins STP	Fort Littleton	0.0028	PA0247227	Feb 2028	—	11
Veka Inc	Fombell	0.02	PAG036572	Mar 2028	—	10
South Middleton Twp Water Auth	Boiling Springs	0.76	PA0044113	Mar 2028	Clarifiers	0
Luzerne Twp Sew Auth WWTF	Labelle	0.17	PA0218693	Mar 2028	Clarifiers, Carrousels / oxidation ditches	10
Waverly Township WWTP	Waverly	0.11	PA0061034	Mar 2028	Aerated lagoons, Uncovered lagoons	2
Halifax STP	Halifax	0.09	PA0024457	Mar 2028	Aerated lagoons	1
Orbisonia/rockhill Muni Auth - Rockhill STP	Orbisonia	0.08	PA0021695	Mar 2028	—	4
Liverpool STP	Liverpool	0.05	PA0041581	Mar 2028	—	0
Peters Twp Fort Loudon STP	Mercersburg	0.04	PA0084182	Mar 2028	—	6
Lincoln Road STP	Pittsburgh	0.03	PA0026425	Mar 2028	—	7
Reading STP	Reading	14.09	PA0026549	Apr 2028	Clarifiers, Carrousels / oxidation ditches, Biogas silos, Biogas balloons	9
Amity Twp WWTP	Douglassville	0.73	PA0070351	Apr 2028	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	14
Racoon Creek WWTP	Atlasburg	0.34	PA0216216	Apr 2028	—	3
Bruin Boro Bear Creek Watershed Authority	Bruin	0.01	PA0239712	Apr 2028	—	60
Bear Crk Watershed Auth - Fairview STP	Petrolia	0.009	PA0239721	Apr 2028	—	63
Petrolia STP	Petrolia	0.008	PA0094200	Apr 2028	—	66
Lower Bucks WWTP	Levittown	5.34	PA0026468	May 2028	Clarifiers, Biogas silos	25
Valley Jt Sew Auth STP	Athens	1	PA0043681	May 2028	Aerated lagoons, Uncovered lagoons	0
Duncannon Muni Water-Well 5 And &7	Duncannon	0.2	PA0021245	May 2028	—	103
East Brady STP	East Brady	0.15	PA0037893	May 2028	—	1
Schuylkill Valley Sew Auth	Cumbola	0.13	PA0064211	May 2028	—	144
Kilbuck Run STP	Pgh	0.05	PA0217271	May 2028	—	0
New Centerville Boro STP	Rockwood	0.02	PA0219169	May 2028	—	2
Wilmington Twp Sa Orchard Terr	New Castle	0.02	PA0103641	May 2028	—	30
Karns City STP	Karns City	0.01	PA0239739	May 2028	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	53
Madison Twp Muni Auth Jerseytown Sew Sys STP	Jerseytown	0.0036	PA0114898	May 2028	—	0
Piney Fork STP	Pittsburgh	3.22	PA0027618	Jun 2028	Clarifiers, Biogas balloons	15
Concord Twp Central STP	Glen Mills	1.09	PA0055212	Jun 2028	Clarifiers	12
Beaver Borough STP	Beaver	0.34	PA0024694	Jun 2028	Clarifiers	0
Perryopolis STP	Perryopolis	0.18	PA0022365	Jun 2028	Clarifiers	5
Broad Top City STP	Broad Top	0.008	PA0084883	Jun 2028	—	21
Nlca Kramer Mill STP	Denver	0.0039	PA0086266	Jun 2028	Uncovered lagoons	0
Granville Twp - Strodes Mills STP	Lewistown	0.18	PA0032051	Jul 2028	—	10
Abbottstown-Paradise STP	Abbottstown	0.13	PA0082368	Jul 2028	—	8
Parker City STP	Parker	0.06	PA0034851	Jul 2028	—	3
Washington Twp Loyalton STP	Elizabethville	0.02	PA0086185	Jul 2028	Aerated lagoons, Uncovered lagoons	9
No Lan Co Gehman Sch STP	Denver	0.0018	PA0087131	Jul 2028	—	1
Hopewell Twp Shy Beaver STP	James Creek	0.0011	PA0082759	Jul 2028	—	29
Shippensburg STP	Shippensburg	2.35	PA0030643	Aug 2028	Clarifiers, Uncovered lagoons	2
Pleasant Unity STP	Greensburg	0.37	PA0092274	Aug 2028	Clarifiers	16
Mcveytown STP	Mcveytown	0.03	PA0028983	Aug 2028	—	1
S Fork Reg WWTP	South Fork	0.46	PA0216941	Sep 2028	Uncovered lagoons	2
Wrightsville STP	Wrightsville	0.37	PA0023442	Sep 2028	—	1
Kings Plaza STP	Warrington	0.23	PA0051250	Sep 2028	—	6
Newport Boro Water Auth-Well 1	Newport	0.22	PA0021237	Sep 2028	Uncovered lagoons	17
Rouseville Mun Waterworks	Rouseville	0.05	PA0024392	Sep 2028	Clarifiers	28
Ararat Twp WWTP	Thompson	0.04	PA0063321	Sep 2028	—	2
Smithton Boro Muni Auth STP	Smithton	0.03	PA0217522	Sep 2028	—	8
Volant Borough Water Dept-Volant H2o Plnt	Volant	0.007	PA0221007	Sep 2028	—	8
Marklesburg STP	James Creek	0.005	PA0086673	Sep 2028	—	7
Elverson Boro Muni Auth STP	Elverson	0.06	PA0052078	Oct 2028	—	9
Huston Twp Muni Auth Sew Sys STP	Penfield	0.03	PA0228346	Oct 2028	—	12
Duncan Twp Village Of Antrim STP	Wellsboro	0.004	PA0228524	Oct 2028	Clarifiers, Uncovered lagoons	5
New Eagle Boro STP	New Eagle	0.14	PA0217786	Nov 2028	—	1
Lake Meade STP	East Berlin	0.12	PA0045004	Nov 2028	—	5
Worthington-West Franklin Jnt Mun Auth	Worthington	0.06	PA0218103	Nov 2028	—	18
Hamilton Twp Ludlow STP	Ludlow	0.03	PA0103292	Nov 2028	—	9
Slatington WWTP	Slatington	0.56	PA0020176	Dec 2028	Clarifiers, Uncovered lagoons	18
Distant STP	Distant	0.04	PA0252581	Dec 2028	—	40
Harford Twp WWTP	Harford	0.01	PA0063100	Dec 2028	—	12

Pennsylvania permit renewals in 2028: questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed September 11, 2026.

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