How many wastewater permits expire in Arkansas in 2028?

31 NPDES permits held by publicly owned wastewater treatment plants in Arkansas expire in 2028, covering a combined average flow of 11 MGD. The busiest month is Jul 2028 with 6 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 Arkansas in 2028?

Osceola WWTP in Osceola, treating about 2.5 MGD under permit AR0021580, expiring Sep 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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Arkansas wastewater permits expiring in 2028

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

31 NPDES permits · 11 MGD combined average flow

31 publicly owned wastewater treatment plants in Arkansas hold NPDES permits that expire during 2028, issued by Arkansas Division of Environmental Quality. 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 (60)2027 (45)All Arkansas NPDES permits →

Publicly owned wastewater treatment plants in Arkansas 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)
Huttig WWTP	Huttig	0.0035	AR0022268	Jan 2028	Uncovered lagoons	66
Atkins, City Of - South Wastewater Treatment Plant	Atkins	0.07	AR0034673	Feb 2028	Aerated lagoons	15
Birdsong, City Of WWTP	Birdsong	—	AR0045934	Feb 2028	Uncovered lagoons	2
Cwl-West Side Wastewater Treatment Plant	Jonesboro	1.91	AR0037907	Mar 2028	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	3
Tri County Regional Water Distribution District - Plainview WWTP	Plainview	0.05	AR0049344	Mar 2028	Uncovered lagoons	13
Waldo, City Of	Waldo	0.02	AR0043508	Apr 2028	—	10
Calion WWTP	Calion	0.04	AR0038211	May 2028	Uncovered lagoons	19
Foreman, City Of - Foreman Municipal WWTF	Foreman	—	AR0023817	May 2028	Uncovered lagoons	191
Vanndale - Birdeye Water Association, Inc.	Vanndale	—	AR0049409	May 2028	Uncovered lagoons	0
Greenwood, City Of	Greenwood	0.74	AR0022454	Jun 2028	Clarifiers, Aerated lagoons, Uncovered lagoons	8
Nlrwu-White Oak Bayou	North Little Rock	2.45	AR0038288	Jul 2028	Clarifiers, Aerated lagoons	0
Hardy WWTP	Hardy	0.07	AR0037991	Jul 2028	Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches	57
Tantara #1 D/b/a Boggy Bayou Sid	Pine Bluff	0.01	AR0037885	Jul 2028	Uncovered lagoons	14
Banks, City Of	Banks	0.0028	AR0050601	Jul 2028	—	62
Alicia, City Of	Alicia	0.0022	AR0039675	Jul 2028	—	89
Bearden WWTP	Bearden	—	AR0021474	Jul 2028	Uncovered lagoons	20
Horseshoe Lake Wwt Facility	Horseshoe Lake	—	AR0049531	Aug 2028	Uncovered lagoons	0
Osceola WWTP	Osceola	2.5	AR0021580	Sep 2028	—	14
Cash WWTP	Cash	—	AR0045284	Sep 2028	Aerated lagoons, Uncovered lagoons	17
Harrell WWTP	Harrell	—	AR0042609	Sep 2028	Uncovered lagoons	39
Mammoth Spring WWTP	Mammoth Spring	0.05	AR0023850	Oct 2028	Uncovered lagoons	70
Menifee WWTP	Menifee	0.04	AR0049361	Oct 2028	Uncovered lagoons	0
Etowah WWTP	Etowah	—	AR0050741	Oct 2028	Uncovered lagoons	15
Wabbaseka, City Of	Wabbaseka	—	AR0039896	Oct 2028	Aerated lagoons, Uncovered lagoons	164
Donaldson, Town Of	Donaldson	0.1	AR0048020	Nov 2028	Uncovered lagoons	37
London Pollution Control Fac.	London	0.05	AR0050946	Nov 2028	—	70
Success WWTP	Success	0.009	AR0048071	Nov 2028	—	2
Marion, City Of	Marion	1.33	AR0021971	Dec 2028	Aerated lagoons, Uncovered lagoons	95
Camden, Arkansas Water Treatment Plant	Camden	1.21	AR0022365	Dec 2028	Clarifiers, Carrousels / oxidation ditches	0
Mulberry, City Of	Mulberry	0.41	AR0034932	Dec 2028	Aerated lagoons, Uncovered lagoons	43
Gravel Ridge Sid #213	Gravel Ridge	0.3	AR0033642	Dec 2028	Aerated lagoons, Uncovered lagoons	45

Arkansas 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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