How many wastewater permits expire in Texas in 2028?

222 NPDES permits held by publicly owned wastewater treatment plants in Texas expire in 2028, covering a combined average flow of 282 MGD. The busiest month is Feb 2028 with 44 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 Texas in 2028?

Pecan Creek Water Reclamation Plant in Denton, treating about 20.72 MGD under permit TX0047180, expiring Jul 2028.

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

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

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Texas wastewater permits expiring in 2028

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

222 NPDES permits · 282 MGD combined average flow

222 publicly owned wastewater treatment plants in Texas hold NPDES permits that expire during 2028, issued by Texas Commission on 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 (143)2027 (245)All Texas NPDES permits →

Publicly owned wastewater treatment plants in Texas with NPDES permits expiring in 2028, from EPA ICIS-NPDES records. Refreshed on every release.
Facility	City	Avg flow (MGD)	NPDES permit	Expires	Violations (3y)
Mountain Creek Reg WWTP	Midlothian	5.89	TX0025011	Jan 2028	0
Riverbend Reg Water Reclamation Facility	Lewisville	5.41	TX0123781	Jan 2028	2
Easthaven WWTP	Houston	3.92	TX0034886	Jan 2028	11
Brookshire Mwd WWTP	Brookshire	1.42	TX0025046	Jan 2028	0
San Gabriel WWTP	Georgetown	3.58	TX0022667	Jan 2028	23
Southside WTP	Henderson	2.57	TX0141763	Jan 2028	20
City Of Van Alstyne WWTP	Van Alstyne	1.44	TX0026883	Jan 2028	295
City Of Alvarado WWTP	Alvarado	1.28	TX0126179	Jan 2028	167
City Of Kyle WWTP	Kyle	5.01	TX0119466	Feb 2028	0
Harris County Wcid 119 WWTP	Houston	1.22	TX0021211	Feb 2028	14
North Green Mud WWTP	Houston	0.6	TX0083381	Feb 2028	5
Harris County Mud 180	Houston	0.55	TX0079529	Feb 2028	6
El Dorado Ud - WWTP	Houston	0.55	TX0025623	Feb 2028	5
Harris County Mud 191 WWTP	Houston	0.48	TX0090476	Feb 2028	2
City Of Bellevue	Bellevue	0.03	TX0027171	Feb 2028	14
City Of Domino WWTP	Queen City	0.01	TX0136123	Feb 2028	7
Greenwood Forest WWTP	Houston	2.53	TX0033243	Feb 2028	13
Bilma Pud - WWTP	Houston	0.6	TX0077941	Feb 2028	7
Timberlake WWTP	Houston	0.53	TX0046868	Feb 2028	0
Southwest Harris Co Mud 1	Houston	0.42	TX0091979	Feb 2028	4
Avinger WWTP	Avinger	0.03	TX0071803	Feb 2028	3
Harris County Mud 531 WWTP	Cypress	0.22	TX0135119	Feb 2028	1
City Of Eustace	Eustace	—	TX0027481	Feb 2028	31
City Of Bellaire	Bellaire	2.66	TX0020613	Feb 2028	11
Cinco Regional WWTP	Sugarland	2.05	TX0074004	Feb 2028	5
Harris County Mud 150 WWTP	Houston	1.23	TX0072893	Feb 2028	5
North Mission Glen Mud WWTP	Sugar Land	0.98	TX0087271	Feb 2028	7
Rosita Valley WWTP	Eagle Pass	0.92	TX0128589	Feb 2028	12
Fort Bend Cnty Mud 50 WWTP	Richmond	0.63	TX0129267	Feb 2028	2
West Harris County Mud 6	Houston	0.51	TX0089621	Feb 2028	0
Harris County Mud 286 WWTF	Houston	0.21	TX0096920	Feb 2028	3
City Of Goodlow WWTP	Kerens	—	TX0092223	Feb 2028	0
NW Harris County Mud 5 Plant 2	Cypress	1.07	TX0128210	Feb 2028	2
Harris County Wcid 74 WWTP	Houston	0.94	TX0023825	Feb 2028	1
Fairgreen WWTP	Houston	0.64	TX0071382	Feb 2028	22
Valley Ranch WWTP	Conroe	0.38	TX0127710	Feb 2028	1
City Of Murchison-Plant - 9581 3rd St N	Murchison	0.18	TX0072087	Feb 2028	172
Harris Co Mud 1 WWTF	Spring	0.17	TX0129330	Feb 2028	3
Park Creek WWTP	Cypress	0.14	TX0128180	Feb 2028	3
City Of Colorado City WWTP	Colorado City	—	TX0142778	Feb 2028	70
Harris County Mud 278 WWTP	Houston	—	TX0097071	Feb 2028	0
Prestonwood Forest Ud WWTP	Houston	0.77	TX0046701	Feb 2028	8
Inverness Forest Id WWTF	Houston	0.38	TX0023612	Feb 2028	14
Spring Trails WWTF	Spring	—	TX0128295	Feb 2028	6
Fort Bend County Mud 30 WWTP	Houston	1.56	TX0078751	Feb 2028	8
Mills Road Mud WWTF	Houston	0.67	TX0075132	Feb 2028	7
City Of Mount Pleasant Wastewater Treatment Plant	Mount Pleasant	3.45	TX0105171	Feb 2028	2
Harris County Mud 189 WWTP	Houston	1.13	TX0083712	Feb 2028	36
Beechnut Mud	Houston	0.66	TX0084425	Feb 2028	0
City Of Manvel WWTP	Manvel	0.48	TX0118397	Feb 2028	0
Montgomery County Mud No 199 WWTP	Magnolia	0.46	TX0142212	Feb 2028	2
Harris County Mud 401 WWTP	Houston	0.3	TX0125687	Feb 2028	18
Sugar Land Greatwood WWTP	Sugar Land	1.3	TX0101915	Mar 2028	7
Harris County Ud 16 WWTP	Houston	0.66	TX0091481	Mar 2028	4
Northwest WWTP	Cypress	0.33	TX0137898	Mar 2028	0
Greens Parkway Mud WWTP	Houston	0.09	TX0093475	Mar 2028	0
NW Harris County Mud 20 WWTP	Houston	—	TX0081337	Mar 2028	3
Winchester Country Regional WWTP	Houston	1.29	TX0082317	Mar 2028	27
Harris County Mud 360	Houston	0.39	TX0113107	Mar 2028	1
Memorial Hills Ud WWTP	Houston	0.35	TX0046671	Mar 2028	2
Charterwood Mud WWTP	Houston	1.14	TX0046841	Mar 2028	2
Newport Mud WWTP	Crosby	—	TX0023230	Mar 2028	6
Woodforest Interim 1wwtp	Montgomery	0.98	TX0129674	Mar 2028	1
Harris County Mud 432 WWTP	Katy	0.62	TX0127647	Mar 2028	20
Intercontinental Airport WWTP	Houston	5.5	TX0034916	Mar 2028	12
Southside WWTP	Crockett	1.07	TX0025895	Mar 2028	6
Montgomery County Mud 99 WWTF	Houston	0.81	TX0127752	Mar 2028	28
Cypress-Klein Ud Wastewater Treatment Plant	Spring	0.57	TX0046779	Mar 2028	6
Harris County Mud 434 WWTP	Cypress	0.36	TX0127311	Mar 2028	6
Fbcmud 250 WWTP	Kendleton	0.21	TX0142701	Mar 2028	3
Atascocita Regional WWTP	Houston	8	TX0058963	Mar 2028	16
Harris County Mud 374	Houston	0.28	TX0124974	Mar 2028	28
Pine Trace WWTP	Tomball	0.14	TX0127795	Mar 2028	3
Trail Of The Lakes Mud WWTP	Houston	1.49	TX0074021	Apr 2028	4
Montgomery County Mud 8 WWTF	Montgomery	1.07	TX0022080	Apr 2028	148
Dowdell Public Ud WWTF	Spring	0.9	TX0026255	Apr 2028	4
South Mission 1 WWTP	Mission	9.06	TX0070017	Apr 2028	0
Harris County Mud No. 58 WWTP	Spring	0.3	TX0074322	Apr 2028	15
Cross Roads Isd WWTP	Malakoff	0.05	TX0102113	Apr 2028	26
Lake Forest Regional WWTP	Houston	2.39	TX0046833	Apr 2028	5
Northwest Harris Co Mud#'S 21,22,23 WWTP	Houston	1.02	TX0079821	Apr 2028	30
City Of Dilley WWTP	Dilley	0.83	TX0137936	Apr 2028	37
Hackberry WWTF	Hackberry	0.74	TX0142859	Apr 2028	98
Northgate Crossing Mud 2 WWTF	Spring	0.7	TX0119181	Apr 2028	4
Harris County Mud 202 WWTP	Houston	0.65	TX0091901	Apr 2028	3
3000' E Of Interx W Rayford Rd	Houston	0.34	TX0126152	Apr 2028	5
Harris County Mud 36 WWTP	Houston	0.28	TX0084085	Apr 2028	1
Harris County Mud 24 WWTP #1	Houston	0.05	TX0113123	Apr 2028	1
Medio Creek Water Recyc. Ctr.	San Antonio	9.52	TX0055689	May 2028	2
City Of Cleburne Wastewater Treatment Plant	Cleburne	4.75	TX0047155	May 2028	57
Greensbrook WWTP	Houston	0.64	TX0131482	May 2028	0
Harris County Mud 104 WWTP	Houston	0.39	TX0074632	May 2028	4
City Of Clyde WWTP	Clyde	0.29	TX0105201	May 2028	6
City Of Hawkins WWTP	Hawkins	0.17	TX0023035	May 2028	15
Luling South WWTP	Luling	0.24	TX0022772	May 2028	0
Lake Mud WWTP 2	Baytown	0.14	TX0127728	May 2028	24
Humble, City Of Southwest WWTP	Humble	4	TX0034401	May 2028	2
Harris County Mud 50 WWTP	Crosby	1.33	TX0057053	May 2028	10
Mount Houston Rd Mud WWTP	Houston	1.27	TX0023515	May 2028	11
Heather Glen WWTP	Houston	0.52	TX0021245	May 2028	0
Harris County Mud 49 WWTP	Houston	0.85	TX0074446	May 2028	3
Rolling Hills WWTP	Houston	0.43	TX0070165	May 2028	2
Sheldon Woods WWTP	Houston	0.4	TX0020991	May 2028	0
Hurricane Creek Regional WWTP	Anna	0.31	TX0141721	May 2028	162
Northwest Harris County Mud 32 WWTP	Harris County	0.72	TX0098647	May 2028	5
Harris County Wcid 92 WTP	Spring	0.68	TX0020974	May 2028	1
Emerald Forest Ud WWTP	Houston	0.99	TX0027324	May 2028	5
City Of Pearland- Longwood WWTP	Pearland	1.88	TX0032743	May 2028	23
City Of Tolar-Plant - City Hall - 700 N Elm Ln	Tolar	0.17	TX0027685	Jun 2028	221
Pecan Grove Mud WWTP	Sugar Land	1.48	TX0056421	Jun 2028	0
City Of Denton	Denton	0.31	TX0119849	Jun 2028	15
Cleveland East WWTP	Cleveland	0.92	TX0053481	Jun 2028	8
Sunbelt Fwsd High Meadows Subdivision	Houston	0.59	TX0021261	Jun 2028	3
Savoy WWTP	Savoy	0.16	TX0023299	Jun 2028	7
Fort Bend County Mud 146 WWTP	Richmond	1.68	TX0126004	Jun 2028	62
City Of Hawk Cove WWTF	Quinlan	0.02	TX0141691	Jun 2028	304
Harris County Mud No 249 WWTP	Houston	0.46	TX0116068	Jun 2028	9
Harris County Mud 26 WWTP	Houston	1.51	TX0056537	Jun 2028	36
Harris County Mud 365 WWTP	Houston	0.92	TX0116009	Jun 2028	2
City Of Rockdale WWTP	Rockdale	0.59	TX0027197	Jun 2028	4
Montgomery Count Mud 137 WWTP	Magnolia	0.22	TX0134856	Jun 2028	10
Big Spring Water Reclamation Plant	Big Spring	0.37	TX0131857	Jun 2028	4
West WWTP	Cleveland	0.00059	TX0053473	Jun 2028	0
City Of Ennis Wastewater Treatment Plant	Ennis	3.87	TX0047261	Jul 2028	3
Rembert Tract WWTP	Spring	0.37	TX0117706	Jul 2028	0
Harris County Mud 495 WWTP 2	Katy	0.31	TX0138002	Jul 2028	5
City Of Annona-Plant - E Main St Meter	Annona	—	TX0022705	Jul 2028	38
Harris County Mud 230 WWTP	Houston	0.59	TX0094706	Jul 2028	20
Timber Lane Utility District WWTP	Houston	2.57	TX0046680	Jul 2028	38
Clovercreek Mud-Plant - 19231 Cloverwood	Magnolia	0.08	TX0097969	Jul 2028	10
Harris County Wcid 110 WWTP	Spring	1.02	TX0076481	Jul 2028	4
Anne Louise Educational Complex	Houston	0.03	TX0115797	Jul 2028	0
NW Harris County Mud No. 5 Wwt	Cypress	0.58	TX0072346	Jul 2028	0
Pecan Creek Water Reclamation Plant	Denton	20.72	TX0047180	Jul 2028	5
Harris County Mud 50 WWTP 2	Crosby	0.36	TX0136174	Jul 2028	4
Royalwood South WWTP	Houston	0.27	TX0062952	Jul 2028	2
Encanto Real Utility District WWTP	Houston	0.25	TX0042099	Jul 2028	0
City Of Crowell WWTP	Crowell	0.1	TX0023370	Jul 2028	8
Harris County Fwsd 47 WWTP	Channelview	—	TX0022462	Jul 2028	27
Northeast WWTP	Houston	13.71	TX0063037	Jul 2028	15
River Road Wastewater Treatment Plant	Wichita Falls	10.56	TX0047686	Jul 2028	2
Burton Creek Wastewater Treatment Plant	Bryan	7.56	TX0022616	Jul 2028	5
Harris County Wcid 70 WWTP	Crosby	0.6	TX0025402	Jul 2028	14
Forest Hills Mud WWTP	Houston	0.52	TX0071820	Jul 2028	6
Northwest Harris County Mud 19 WWTP	Houston	0.22	TX0081264	Jul 2028	9
High Point Elementary School	Navasota	0.002	TX0128333	Jul 2028	1
City Of Alto WWTP	Alto	0.29	TX0142697	Aug 2028	158
Northeast District Wastewater Treatment Plant	Baytown	—	TX0126543	Aug 2028	4
Westlake Mud 1 WWTP	Houston	0.7	TX0053091	Aug 2028	3
City Of Sonora	Sonora	0.47	TX0023191	Aug 2028	8
Hardin County Wcid 1 WWTP	Sour Lake	0.16	TX0027693	Aug 2028	2
Oak Island WWTP	Anahuac	—	TX0054917	Aug 2028	8
City Of Dayton	Dayton	2.7	TX0100170	Aug 2028	7
Montgomery County Mud 105 Wastewater Treatment Plant 1	Spring	0.52	TX0127400	Aug 2028	1
City Of Angus WWTF	Angus	0.0078	TX0143774	Aug 2028	46
Harris County Wcid 50 El Lago WWTP	El Lago	0.61	TX0027146	Aug 2028	1
City Of Palmer WWTP	Palmer	0.48	TX0142425	Aug 2028	145
City Of Clarksville City WWTP	Clarksville	0.13	TX0127272	Aug 2028	24
Rolling Creek Ud WWTP	Houston	0.58	TX0097373	Aug 2028	9
Montgomery County Mud 96	Porter	0.23	TX0135682	Sep 2028	1
Welder Park WWTP	Sinton	0.02	TX0110361	Sep 2028	2
City Of Ranger WWTP	Ranger	0.49	TX0118702	Sep 2028	61
Luce Bayou Pud WWTP	Houston	0.18	TX0074870	Sep 2028	13
Northwest Freeway Mud WWTP	Hockley	0.44	TX0075183	Sep 2028	7
Spring Creek Utility District WWTP	Spring	0.97	TX0026221	Sep 2028	26
Kleinwood Central Wastewater Treatment Plant	Spring	3.57	TX0046817	Sep 2028	7
Southern Montgomery Co Mud WWTP	Spring	1.38	TX0024759	Sep 2028	6
City Of Alvin WWTP	Alvin	6.08	TX0024554	Sep 2028	27
Northwest Harris County Mud 10 WWTP	Cypress	0.89	TX0075159	Sep 2028	20
Glendale Lakes Subdivision WWTP	Rosharon	0.2	TX0132896	Sep 2028	0
Stanley Creek WWTP	Gunter	0.15	TX0143898	Sep 2028	113
City Of Grapeland WWTP	Grapeland	0.48	TX0055239	Sep 2028	23
Galveston County Fwsd 6 WWTP	Galveston	0.28	TX0020079	Sep 2028	0
West Lake Houston WWTP	Humble	0.26	TX0128244	Sep 2028	24
Alabama Coushatta Tribe Of Tx	Livingston	0.16	TX0127582	Sep 2028	54
Harris County Mud 285 WWTP	Houston	0.47	TX0095451	Oct 2028	1
Montgomery County Mud 83 WWTP	Houston	0.27	TX0126209	Oct 2028	1
Harris County Mud 278 WWTP	Houston	1.65	TX0127124	Oct 2028	22
Jacintoport Terminal WWTP	Houston	0.0077	TX0087998	Oct 2028	0
City Of Jacinto City	Jacinto City	1.32	TX0053970	Oct 2028	6
City Of Bishop WWTF	Bishop	0.28	TX0023019	Oct 2028	169
Harris Co. Wcid 21 WWTP	Channelview	5.71	TX0022756	Oct 2028	45
North Laredo WWTP	Laredo	2.09	TX0057801	Oct 2028	5
City Of Southside Place WWTP	Houston	0.21	TX0026972	Oct 2028	78
Rodeo Palms WWTP	Manvel	0.47	TX0124001	Oct 2028	0
Galveston County Mud 12 WWTP	Bayou Vista	0.43	TX0020311	Oct 2028	4
Harris Co Mud 71 WWTP	Katy	1.12	TX0074403	Nov 2028	9
Woodcreek Mud WWTP	Houston	0.51	TX0075671	Nov 2028	2
North Plant WWTF	Silsbee	0.37	TX0023728	Nov 2028	0
Lakeview Regional Water Reclamation Plant	Lewisville	6.31	TX0020354	Nov 2028	6
Hondo WWTP	Hondo	1.85	TX0087751	Nov 2028	3
Forest Cove WWTP	Houston	1.34	TX0115924	Nov 2028	24
Gleannloch Farms WWTF	Spring	0.92	TX0115983	Nov 2028	49
Harris County Mud 148 WWTP	Cypress	—	TX0126161	Nov 2028	0
Harris County Mud 203 WWTP	Houston	0.49	TX0084875	Nov 2028	3
Red Oak Creek Regional WWTP	Red Oak	7.15	TX0104345	Nov 2028	1
Bull Hide Creek WWTP	Lorena	2.11	TX0129437	Nov 2028	20
Montgomery County Mud 15 WWTP	Conroe	0.84	TX0022055	Nov 2028	1
Montgomery County Mud 112 WWTP	Conroe	0.46	TX0128431	Nov 2028	3
Richey Road Mud WWTF	Houston	0.35	TX0092967	Nov 2028	26
City Of Memphis-Plant - Wellfield Storage	Memphis	—	TX0027740	Nov 2028	0
Indian Shores Plant	Houston	0.59	TX0027758	Nov 2028	0
Town Of Lakewood Village WWTP	Lakewood Village	0.15	TX0026565	Nov 2028	6
Arrowhead Ranch Estates WWTP	Wichita Falls	0.06	TX0101818	Nov 2028	26
Harris County Wcid 99 WWTP	Spring	0.42	TX0046736	Nov 2028	2
City Of Seabrook	City Of Seabrook	2.56	TX0137952	Nov 2028	10
Harris County Wcid 89 WWTP	Bellaire	0.68	TX0095842	Nov 2028	5
City Of Tomball South WWTP	Tomball	1.92	TX0117595	Nov 2028	8
Chambers County District No 1 WWTP	Baytown	0.54	TX0128325	Nov 2028	2
City Of Decatur Water Plant	Decatur	0.18	TX0136204	Nov 2028	0
Brazoria County Mud 3 WWTP	Pearland	1.43	TX0086118	Nov 2028	14
Fallbrook Ud WWTP	Houston	0.79	TX0021237	Dec 2028	10
Cypress Hill Mud 1 WWTP	Houston	1.06	TX0086011	Dec 2028	3
Sedona Lakes WWTP	Manvel	0.23	TX0129178	Dec 2028	2
Aubrey WWTF	Aubrey	0.54	TX0056588	Dec 2028	6
Fort Bend Mud 26 WWTP	Missouri City	0.44	TX0078891	Dec 2028	6
City Of Lipan WWTP	Lipan	0.02	TX0111333	Dec 2028	85
Fort Bend County Mud 23 WWTP	Fresno	1.76	TX0074233	Dec 2028	53
Bammel Ud WWTP	Spring	1.57	TX0046639	Dec 2028	4
Seabrook WWTP	Seabrook	—	TX0022250	Dec 2028	25
City Of Evant WWTP	Evant	0.02	TX0055522	Dec 2028	0
City Of Mount Calm	Mount Calm	0.0021	TX0142522	Dec 2028	57

Texas 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 October 26, 2026.

Wastewater terms: NPDES permit · POTW · Biological nutrient removal · Tertiary treatment · Oxidation ditch · Anaerobic digester · all terms

Cite this page

Journalists, researchers and educators are welcome to quote these figures. Please credit Klarifi as the source and link to this page.

Klarifi. “NPDES permits expiring in 2028: Texas wastewater plants.” Updated October 26, 2026. https://klarifi.io/facilities/texas/permits-expiring/2028

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