How many wastewater permits expire in Texas in 2027?

245 NPDES permits held by publicly owned wastewater treatment plants in Texas expire in 2027, covering a combined average flow of 508 MGD. The busiest month is Jan 2027 with 33 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 2027?

City Of Dallas Central WWTP in Dallas, treating about 118.1 MGD under permit TX0047830, expiring Apr 2027.

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.

Try for free Log in

Texas wastewater permits expiring in 2027

Name: Texas NPDES permits expiring in 2027
Creator: Klarifi
License: https://klarifi.io/terms-of-service

245 NPDES permits · 508 MGD combined average flow

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

Publicly owned wastewater treatment plants in Texas with NPDES permits expiring in 2027, from EPA ICIS-NPDES records. Refreshed on every release.
Facility	City	Avg flow (MGD)	NPDES permit	Expires	Violations (3y)
Oyster Creek WWTP	Angleton	4.43	TX0056316	Jan 2027	8
City Of Decatur-Swtp - 800 Water Plant Rd	Decatur	1.07	TX0024911	Jan 2027	0
Justin WWTF	Justin	0.44	TX0022501	Jan 2027	4
Quitman WWTP	Quitman	0.35	TX0022748	Jan 2027	0
Buffalo WWTP	Buffalo	0.24	TX0053627	Jan 2027	256
City Of Cumby WWTP	Cumby	0.14	TX0052981	Jan 2027	3
Tom Bean WWTP	Tom Bean	0.44	TX0055212	Jan 2027	74
Harris County Mud 166 WWTP	Houston	0.16	TX0089494	Jan 2027	6
Farmersville WWTP 1	Farmersville	—	TX0076091	Jan 2027	1
White Oak WWTP	Houston	4.42	TX0057347	Jan 2027	13
Keene WWTP	Keene	0.91	TX0106291	Jan 2027	26
Seis Lagos WWTP	Wylie	0.29	TX0024988	Jan 2027	4
City Of Groveton WWTF	Groveton	0.1	TX0076104	Jan 2027	5
City Of Jewett	Jewett	0.1	TX0074683	Jan 2027	35
City Of Coolidge WWTF	Coolidge	0.05	TX0057045	Jan 2027	48
Chireno Isd	Chireno	0.009	TX0137537	Jan 2027	8
City Of Jersey Village	Houston	0.57	TX0092606	Jan 2027	1
City Of Mount Enterprise WWTP	Mount Enterprise	0.04	TX0122173	Jan 2027	81
Main Plant	Childress	0.59	TX0136905	Jan 2027	94
City Of Krum WWTP	Krum	0.11	TX0024198	Jan 2027	10
City Of Normangee WWTF	Normangee	0.1	TX0027448	Jan 2027	51
City Of Coldspring WWTP	Coldspring	0.09	TX0117765	Jan 2027	0
East Montgomery County Mud 5 WWTP No. 2	New Caney	0.43	TX0140848	Jan 2027	129
Mclennan County Wcid No 2 WWTF	Elm Mott	0.13	TX0141071	Jan 2027	0
Little Elm WWTP	Little Elm	3.51	TX0053783	Jan 2027	21
Crandall WWTP	Crandall	0.91	TX0024929	Jan 2027	19
City Of Springtown WWTP	Springtown	0.41	TX0032646	Jan 2027	3
City Of Runaway Bay-Package Swtp - 905 Hwy 380	Runaway Bay	0.2	TX0026689	Jan 2027	9
City Of Leonard WWTP	Leonard	1.07	TX0054208	Jan 2027	13
Buffalo Creek Wastewater Treatment Plant	Rockwall	1.03	TX0078565	Jan 2027	2
Galveston County Wcid 8	Santa Fe	2.02	TX0023671	Jan 2027	12
Farmersville WWTP 2	Farmersville	0.63	TX0103497	Jan 2027	9
City Of Newark WWTP	Newark	0.11	TX0057231	Jan 2027	2
Branch Regional Water Reclamation WWTP	Lewisville	8.62	TX0125172	Feb 2027	41
City Of Junction WWTP	Junction	0.15	TX0021075	Feb 2027	3
Fort Bend County Mud 251 WWTP	Richmond	0.03	TX0141429	Feb 2027	20
Tarkington Isd WWTP	Cleveland	0.02	TX0132543	Feb 2027	9
Chico WWTF	Chico	0.14	TX0023787	Feb 2027	124
Town Of Flower Mound WWTP	Flower Mound	6.92	TX0020711	Feb 2027	19
Conroe Feeder Zone Elementary School Flex 21 WWTP	Montgomery	0.06	TX0141194	Feb 2027	0
City Of Mercedes WWTP	Mercedes	2.21	TX0021547	Feb 2027	2
Harris Co Mud 105 WWTP	Katy	1.86	TX0070971	Feb 2027	30
City Of Ennis Water Treatment Plant	Ennis	0.3	TX0125563	Feb 2027	0
Stewart Creek Wastewater Treatment Plant	The Colony	4.62	TX0053112	Feb 2027	28
Memorial Point Utility WWTP	Livingston	0.21	TX0022845	Feb 2027	10
City Of Fayetteville WWTP	Fayetteville	0.05	TX0055077	Feb 2027	1
Clute-Richwood WWTP	Clute	7.01	TX0034436	Feb 2027	23
City Of Lovelady WWTP	Lovelady	0.21	TX0027138	Feb 2027	28
Fort Bend County Mud No 162 WWTP No 2	Rosenberg	0.16	TX0141267	Feb 2027	19
Richards Isd WWTP	Richards	0.005	TX0106119	Feb 2027	30
City Of Milford WWTF	Milford	0.0075	TX0020290	Feb 2027	24
Double Creek Wastewater Treatment Plant	Jacksonville	3.2	TX0100587	Feb 2027	21
City Of Liberty Wastewater Treatment Plant	Liberty	2.09	TX0074284	Feb 2027	6
City Of Penitas WWTP	Penitas	0.31	TX0131491	Feb 2027	1
City Of Oakwood WWTP	Oakwood	0.22	TX0116173	Feb 2027	57
City Of Naples	Naples	0.12	TX0024457	Feb 2027	11
City Of Saint Jo WWTP	Saint Jo	0.06	TX0024821	Feb 2027	46
City Of Callisburg-Plant 2 - Fm 678	Gainesville	0.04	TX0072362	Feb 2027	10
City Of Malone WWTP	Malone	0.03	TX0020303	Feb 2027	23
Wolf Creek Park WWTP	Coldspring	0.01	TX0024775	Feb 2027	3
City Of Frost WWTF	Frost	0.05	TX0022420	Mar 2027	110
City Of Redwater	Redwater	0.04	TX0026581	Mar 2027	83
Green Trails Mud WWTP	Houston	0.5	TX0085332	Mar 2027	3
City Of Borger Wastewater Treatment Facility	Borger	1.08	TX0047031	Mar 2027	0
Northwest Harris County Mud 29 WWTP	Houston	0.29	TX0093726	Mar 2027	1
City Of Bedias WWTP	Bedias	0.07	TX0129895	Mar 2027	65
Bridgestone Mud WWTP No. 2	Tomball	0.04	TX0140643	Mar 2027	5
Harris Co Mud 149 WWTP	Houston	0.46	TX0091626	Mar 2027	11
City Of Wills Point WWTP	Wills Point	0.83	TX0020346	Mar 2027	8
City Of Muenster WWTP	Muenster	0.34	TX0021792	Mar 2027	18
Rayburn Country Mud WWTP	Jasper	0.28	TX0023701	Mar 2027	1
City Of Timpson	Timpson	0.25	TX0141488	Mar 2027	7
Sorrento WWTP	Richmond	0.07	TX0141232	Mar 2027	0
Metro Central WWTP	Houston	2.36	TX0069736	Mar 2027	11
Peninsula Water Reclamation Plant	Lewisville	1.82	TX0124745	Mar 2027	8
City Of Brownsboro WWTP	Brownsboro	0.16	TX0062707	Mar 2027	57
City Of Kerens WWTP	Kerens	0.25	TX0023027	Mar 2027	1
River Road WWTP	Amarillo	7.16	TX0025801	Mar 2027	1
Harris County Mud 6 WWTP	Houston	0.43	TX0026352	Mar 2027	7
Harris County Mud 119 WWTP	Houston	0.12	TX0092908	Mar 2027	4
City Of Midway WWTP	Midway	—	TX0102849	Mar 2027	0
Centerville WWTP	Centerville	0.08	TX0077810	Mar 2027	2
West Orange WWTP	West Orange	1.15	TX0054810	Mar 2027	71
City Of Elkhart WWTP	Elkhart	0.29	TX0022578	Mar 2027	23
City Of Center - Mill Creek Water Treatment Plant	Center	1.67	TX0076953	Apr 2027	25
Edcouch WWTF	Edcouch	0.1	TX0057614	Apr 2027	13
Harris-Ft.Bend Co Mud 5 WWTP	Katy	0.73	TX0115894	Apr 2027	3
Harris County Mud 238 WWTP	Katy	0.66	TX0093891	Apr 2027	5
Harris County Mud 345 WWTF	Houston	0.44	TX0086690	Apr 2027	11
Spencer Road Pud-Plant - 57945 Jackrabbit Rd	Houston	0.43	TX0026263	Apr 2027	0
City Of Dallas Central WWTP	Dallas	118.1	TX0047830	Apr 2027	11
West Harris Co. Mud 17 WWTP	Katy	0.24	TX0084468	Apr 2027	9
Polk County Safety Rest Area WWTF	Livingston	0.0081	TX0125091	Apr 2027	42
Port O'Connor Improvement District WWTP	Port O'Connor	0.77	TX0112151	Apr 2027	6
City Of Maypearl WWTP	Maypearl	0.22	TX0053571	Apr 2027	115
Montgomery County Mud No 172 WWTP	Willis	0.02	TX0141275	Apr 2027	3
City Of Goodrich WWTP	Goodrich	0.01	TX0087963	Apr 2027	9
City Of Streetman WWTP	Streetman	0.02	TX0072338	Apr 2027	35
North Angelina County Regional Wastewater	Lufkin	0.38	TX0056154	Apr 2027	5
Woodland Oaks WWTP	Houston	0.33	TX0063479	Apr 2027	0
Park Ten Mud	Houston	0.96	TX0026395	Apr 2027	36
West Memorial Mud	Katy	3.39	TX0021512	Apr 2027	6
Harris Co Mud 250 WWTP	Houston	0.07	TX0093581	Apr 2027	1
City Of Silsbee South WWTP	Silsbee	2.07	TX0023736	May 2027	21
Athens West WWTP	Athens	0.83	TX0025364	May 2027	3
West Park Mud WWTP	Houston	0.55	TX0086185	May 2027	3
Stewart Creek WWTP	Frisco	0.38	TX0128031	May 2027	13
North Wastewater Treatment Plant	Athens	0.65	TX0025372	May 2027	1
Onalaska WWTP	Onalaska	0.18	TX0078841	May 2027	2
Splendora WWTP	Splendora	0.17	TX0102512	May 2027	11
City Of Joaquin WWTP	Joaquin	0.19	TX0141470	May 2027	411
Grand Lakes Mud 4	Houston	1.04	TX0099856	May 2027	0
Big Oaks Mud WWTP	Bellaire	0.59	TX0096911	May 2027	0
Forest Hills WWTF	Jasper County	0.05	TX0031283	May 2027	1
Bear Creek Pioneers Park WWTP	Houston	0.03	TX0068047	May 2027	2
Stanley Lake Mud	Montgomery	0.83	TX0022063	May 2027	0
Harris County Mud 284 WWTP	Katy	0.31	TX0095702	May 2027	0
San Jacinto River Authority WWTP 2	The Woodlands	4.49	TX0054186	May 2027	3
San Jacinto River Authority	Conroe	0.64	TX0063461	May 2027	0
The Woodlands WWTP 2	The Woodlands	4.78	TX0091715	May 2027	0
Montgomery County Mud 16 WWTP	Splendora	0.11	TX0078344	May 2027	8
City Of Bowie WWTP	Bowie	0.58	TX0111325	May 2027	3
Fort Bend County Mud 34 WWTP	Katy	0.15	TX0129062	May 2027	18
Harris County Mud 122 WWTP	Missouri City	0.14	TX0084484	May 2027	1
Kings Creek WWTP	Terrell	4.75	TX0022527	May 2027	18
City Of Livingston	Livingston	2.13	TX0024163	May 2027	111
City Of Celina WWTP	Celina	1.62	TX0023272	May 2027	49
Chandler City Of	Chandler	0.36	TX0033499	May 2027	5
City Of Bynum WWTP	Bynum	0.0095	TX0134791	May 2027	14
Beltway WWTP	Houston	8.87	TX0065307	Jun 2027	33
Harris County Mud 23 WWTP	Houston	0.57	TX0062235	Jun 2027	3
Boyd Prison Unit WWTP	Fairfield	0.21	TX0110035	Jun 2027	0
Harris County Mud 130 WWTP	Houston	0.51	TX0091316	Jun 2027	0
Waller County Mud WWTP	Brookshire	0.16	TX0127264	Jun 2027	24
Cinco Ranch South WWTP	Katy	0.79	TX0098965	Jun 2027	12
Chelford City Regional Wastewater Treatment Plant	Houston	5.1	TX0056481	Jun 2027	1
Harris County Fwsd 61 WWTP	Cypress	2.85	TX0091804	Jun 2027	5
Southside Plant	Alice	1.58	TX0034002	Jun 2027	2
Barwood Wastewater Treatment Plant	Houston	1.12	TX0022853	Jun 2027	4
City Of Pilot Point WWTP	Pilot Point	0.98	TX0022659	Jun 2027	2
City Of Malakoff WWTP	Malakoff	0.37	TX0020559	Jun 2027	6
City Of Holliday WWTP	Holliday	0.19	TX0025755	Jun 2027	13
City Of Katy Waste Water Treatment Plant	Katy	4.66	TX0025747	Jun 2027	3
City Of Jacksboro	Jacksboro	0.57	TX0069825	Jun 2027	0
Waterwood Mud 1 WWTP	Huntsville	0.12	TX0124150	Jun 2027	0
Copperfield Plant WWTP	Houston	2.51	TX0075884	Jun 2027	1
Stephen F Austin Elementary WWTP	Conroe	0.02	TX0083216	Jun 2027	2
White Oak Bend WWTP	Houston	0.36	TX0076651	Jul 2027	1
City Of Sanger WWTP	Sanger	1.41	TX0022403	Jul 2027	19
Montgomery County Mud 18 WWTF	Conroe	0.69	TX0100331	Jul 2027	8
Galveston County Wcid 12 WWTP	Kemah	1.76	TX0078441	Jul 2027	3
Leon Creek Water Recycling Center	San Antonio	41.23	TX0052639	Jul 2027	5
River Ranch Mud 1 WWTP	Dayton	0.47	TX0137901	Jul 2027	2
Willowood WWTP	Houston	3	TX0020788	Jul 2027	54
Harris-Fort Bend Counties Mud 3 WWTP	Houston	0.65	TX0124451	Jul 2027	0
Sandbrock WWTP	Aubrey	1.06	TX0137464	Jul 2027	3
West Harris County Mud 7 WWTP	Houston	0.59	TX0079618	Jul 2027	5
Fort Bend County Mud 124 WWTP	Katy	0.26	TX0119873	Jul 2027	0
City Of Wortham	Wortham	0.17	TX0137782	Jul 2027	42
Cinco Mud 1 Ro Plant	Katy	0.39	TX0135194	Jul 2027	8
Castlewood Regional WWTP	Houston	0.25	TX0071625	Jul 2027	5
Montgomery County Mud 24 WWTF	Porter	0.23	TX0071412	Aug 2027	3
Stonebrooke Sections 1 And 2	Conroe	0.03	TX0142000	Aug 2027	51
City Of Devers WWTP	Devers	0.08	TX0071510	Aug 2027	29
South Mesquite Regional Wastewater Treatment Plant	Mesquite	43.31	TX0047431	Aug 2027	24
Williamsburg Regional	Katy	3.14	TX0058408	Aug 2027	52
Harris County Mud 70	Houston	1.13	TX0062031	Aug 2027	2
Cedar Bayou WWTF	Huffman	2.53	TX0103667	Aug 2027	23
City Of Comanche	Comanche	0.43	TX0022730	Aug 2027	111
Fort Bend County Mud 185 WWTP	Katy	0.34	TX0128708	Aug 2027	5
Lake Conroe Hills Mud WWTF	Willis	0.25	TX0054364	Aug 2027	5
City Of Rhome	Rhome	0.08	TX0024783	Aug 2027	20
Katy Isd Mayde Creek WWTP	Houston	0.06	TX0079201	Aug 2027	12
City Of Alvord WWTP	Alvord	0.1	TX0142204	Aug 2027	98
Harris County Mud 102 WWTP	Houston	1.13	TX0052906	Aug 2027	13
Rolling Fork Pud WWTP	Houston	0.37	TX0026697	Aug 2027	5
Montgomery County Ud 2 WWTP	Houston	0.29	TX0032514	Aug 2027	2
Northside WWTP	Crockett	1.76	TX0070831	Aug 2027	102
Squabble Creek WWTP	Rockwall County	—	TX0022241	Aug 2027	7
Horsepen Bayou Mud	Houston	0.65	TX0079537	Aug 2027	9
Fry Road Mud WWTP	Houston	0.42	TX0076775	Aug 2027	1
Far Hills Utility District Wwt	Willis	0.22	TX0129526	Aug 2027	6
Madisonville WWTP	Madisonville	—	TX0026662	Aug 2027	2
City Of Webster Central WWTF	Webster	2.19	TX0024589	Aug 2027	5
Harris County Mud 5 WWTP	Houston	0.8	TX0026344	Aug 2027	20
Berry Creek WWTP	Georgetown	0.04	TX0119172	Aug 2027	0
City Of Brackettville Ft Clark Mud WWTP	Brackettville	—	TX0112119	Aug 2027	0
City Of Grapevine - Peach Street Plant WWTP	Grapevine	4.22	TX0032018	Sep 2027	0
Harris County Mud 127 WWTP	Houston	1.03	TX0083500	Sep 2027	0
City Of Teague North WWTP	Teague	0.43	TX0034495	Sep 2027	53
Addicks Ud WWTP	Houston	0.41	TX0112585	Sep 2027	12
Harris Co Mud 216 WWTP	Houston	0.34	TX0092584	Sep 2027	9
Harris County Mud 165 WWTP	Houston	1.28	TX0127388	Sep 2027	2
Point Aquarius Mud WWTP	Willis	0.47	TX0022071	Sep 2027	2
Cedric Smith Elementary School WWTP	Magnolia	0.02	TX0119598	Sep 2027	31
Southwest WWTP	Houston	55	TX0062995	Sep 2027	73
Chocolate Bayou Wastewater Treatment Facilities	Houston	9.12	TX0063061	Sep 2027	7
Harris County Wcid 47 WWTP	Houston	4.49	TX0063045	Sep 2027	9
Bissonnet WWTP	Houston	0.62	TX0056952	Sep 2027	0
Blaketree Mud No 1 WWTF	Montgomery	0.04	TX0135658	Sep 2027	3
Tdcj Coffield Unit	Tennessee Colony	1.7	TX0031577	Sep 2027	27
Chimney Hill Mud WWTP	Houston	0.7	TX0085588	Sep 2027	5
Fondren Road WWTF	Houston	0.64	TX0020052	Sep 2027	4
Fort Bend County Mud 130	Katy	0.21	TX0118109	Sep 2027	0
Atascosa River WWTF	Pleasanton	1.27	TX0022594	Sep 2027	0
Harris County Mud 276 WWTP	Houston	0.4	TX0095532	Sep 2027	20
Crosby Mud WWTF	Crosby	1.93	TX0054151	Oct 2027	20
Rankin Road West Mud	Houston	0.24	TX0097047	Oct 2027	9
Trophy Club Mud 1	Trophy Club	1.39	TX0055735	Oct 2027	0
City Of Woodbranch Village WWTP	Woodbranch	0.27	TX0077241	Oct 2027	9
City Of Rosenberg	Rosenberg	—	TX0098914	Oct 2027	3
E Montgomery Cnty Mud 3 WWTP 1	Houston	0.18	TX0125300	Oct 2027	2
Corinthian Point Mud 2 - WWTP	Conroe	0.08	TX0027049	Oct 2027	1
Blue Ridge West Mud WWTP	Missouri City	1.32	TX0053643	Oct 2027	11
Harris County Mud 366 WWTP	Houston	0.15	TX0119431	Oct 2027	6
Wilson Creek Regional Wastewater Treatment Plant	Mc Kinney	—	TX0047911	Oct 2027	27
Harris County Mud 391 WWTP	Houston	0.71	TX0124770	Oct 2027	5
Tool WWTP	Kemp	0.41	TX0069183	Oct 2027	7
City Of Penelope WWTP	Penelope	0.02	TX0142247	Oct 2027	109
City Of Gainesville Wastewater Treatment Plant	Gainesville	2.72	TX0022357	Oct 2027	0
Ft Bend County Wcid 2	Stafford	1.86	TX0099511	Oct 2027	2
Legacy Hills WRF	Celina	0.57	TX0142018	Oct 2027	21
Sam C Mckenzie Jr Water Reclamation Facility	New Braunfels	3.38	TX0133248	Oct 2027	4
Gunter Creek WWTP	Gunter	0.44	TX0142280	Oct 2027	9
Greenwood Ud - WWTP	Houston	1.62	TX0020800	Oct 2027	6
Ash Creek WWTP	Azle	1.22	TX0023116	Oct 2027	1
Imperial Valley WWTP	Houston	2.4	TX0020478	Oct 2027	16
Fort Bend County Mud 34 WWTP No 1	Houston	0.81	TX0085448	Oct 2027	46
City Of Hudson WWTP	Hudson	0.72	TX0142549	Oct 2027	2
Southside WWTF	Brownsville	—	TX0055484	Oct 2027	14
Willowbrook WWTP	Houston	1.98	TX0113131	Oct 2027	10
Harris County Mud 86 WWTP	Houston	0.74	TX0078824	Oct 2027	1
Laredo City Of Sewer Plant	Laredo	10.77	TX0025461	Oct 2027	82
Mims Creek WWTP	Fairfield	0.44	TX0075850	Oct 2027	1
Harris Co Mud 387 WWTP	Spring	2.38	TX0124907	Nov 2027	39
Harris County Wcid 76 WWTP	Houston	1.08	TX0025291	Nov 2027	16
Meadows Place WWTP	Stafford	1.02	TX0053872	Nov 2027	32
Harris County Mud 185 WWTP	Houston	0.75	TX0079707	Nov 2027	10
Northwest Harris County Mud 16 WWTP	Houston	0.68	TX0075981	Nov 2027	6
West Harris County Mud 15 WWTP	Houston	0.57	TX0083496	Nov 2027	18
Nottingham Country Mud WWTP	Houston	0.54	TX0089346	Nov 2027	0
Denbury West WWTP	Henderson	0.44	TX0141585	Nov 2027	1
Fort Bend County Mud No.206 WWTF	Sugar Land	0.18	TX0133779	Nov 2027	3
Lake Mud WWTP	Baytown	0.18	TX0126187	Nov 2027	23
Tidwell Timbers WWTP	Houston	0.42	TX0101460	Dec 2027	7

Texas permit renewals in 2027: 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 · Activated sludge · Oxidation ditch · 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 2027: Texas wastewater plants.” Updated October 26, 2026. https://klarifi.io/facilities/texas/permits-expiring/2027

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