How much is Houston, TX planning to spend on water and sewer infrastructure?

Houston’s published capital plans list 22 water, sewer and wastewater line items with a combined budget of $1.3B, of which $774M is in the wastewater and sewer departments.

What is the largest capital project in Houston’s plan?

Wastewater Treatment Plant Improvements, budgeted at $354M and scheduled for 2025 under the Wastewater department.

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Houston, Texas: water and wastewater capital improvement projects

Name: Houston, TX water and wastewater capital improvement projects
Creator: Klarifi
License: https://klarifi.io/terms-of-service

22 line items · $1.3B · 1 plan

Houston's published capital plans list 22 water, sewer and wastewater line items with a combined planning budget of $1.3B, of which 10 items worth $774M sit in the wastewater and sewer departments. The largest single item is Wastewater Treatment Plant Improvements at $354M (2025). The ten largest items are listed below; the full list with descriptions and page references is in Klarifi.

A capital improvement plan (CIP) is a city’s multi-year budget for building and replacing infrastructure. The water, sewer and wastewater sections list each project with its budget and the years it is funded, which makes them the earliest public signal that a plant, pump station or pipe network is about to be upgraded, usually two to four years before a contract is awarded.

The largest water and sewer projects in Houston

The 10 largest water, sewer and wastewater line items in Houston’s capital plans by planning budget.
#	Project	Department	Type	Budget	Years
1	Wastewater Treatment Plant Improvements	Wastewater	Wastewater treatment plant upgrades	$354M	2025
2	Wastewater Treatment Plant Consolidation	Wastewater	Wastewater treatment plant upgrades	$167M	2025
3	Surface Water Transmission Program	Water Supply	Water mains and distribution	$133M	2025
4	Neighborhood Sewer Rehab Program	Sewer	Sewer rehabilitation and I&I	$96M	2025
5	Pump Station Program	Water Supply	Pump stations	$88M	2025
6	Surface Water Transmission Program	Water Supply	Water mains and distribution	$79M	2025
7	Wastewater Treatment Plant Service Areas	Wastewater	Wastewater treatment plant upgrades	$55M	2025
8	Neighborhood Water Main Replacement	Water Distribution	Water mains and distribution	$40M	2025
9	East Water Purification Plant	Water Supply	Water treatment plants	$32M	2025
10	Neighborhood Sewer Systems Improvements	Sewer	Sewer rehabilitation and I&I	$27M	2025

12 more line items in Houston, with descriptions and contacts

Klarifi holds every Houston line item with its description, the page it appears on and the source document, plus 1,425 verified contacts at the city’s treatment plants. Track new plans as they are adopted and compare with similar projects in other cities.

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Planned spend by start year

Before 2026

$1.3B

22 items

By department

Line items and planning budgets by department, Houston.
Department	Line items	Budget	Share
Wastewater	8	$651M	51%
Sewer	2	$123M	10%
Water Supply	9	$416M	33%
Water Distribution	3	$84M	7%

Project types in Houston's plan

Wastewater treatment plant upgrades · 4 · $595M Water mains and distribution · 6 · $311M Sewer rehabilitation and I&I · 2 · $123M Pump stations · 1 · $88M Water treatment plants · 2 · $51M Lift stations · 1 · $17M Force mains and interceptors · 1 · $14M Wells and groundwater · 1 · $13M

Wastewater treatment plants in Houston

188 publicly owned treatment plants in Houston with 1,918 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.

Plant	Avg flow (MGD)	NPDES	Violations (3y)
Southwest WWTP	50.14	TX0062995	68
City Of Houston	28.8	TX0062201	3
City Of Houston Upper Brays WWTF	16.38	TX0088153	26
Northwest WWTP	14.58	TX0063011	16
Almeda Sims WWTP	12.85	TX0034924	15
Keegans Bayou WWTP	11.12	TX0098191	11
Turkey Creek WWTF	10.85	TX0035017	5
Northeast WWTP	9.97	TX0063037	15
Chocolate Bayou Wastewater Treatment Facilities	9.94	TX0063061	7
West District WWTF	9.01	TX0063002	13
Blackhawk Regional WWTP	7.25	TX0069728	19
Southeast WWTP	7.24	TX0035009	3
Sagemont WWTP	6.41	TX0063070	16
Beltway WWTP	6.39	TX0065307	30
Atascocita Regional WWTP	6.38	TX0058963	16
Robert T. Savely Water Reclamation Facility	6.3	TXR05Q524	6
Su-Regional WWTF Plant	5.88	TX0025062	22
Harris County Wcid 47 WWTP	5.07	TX0063045	8
Kingwood Central WWTP	4.99	TX0066583	65
Freshwater Supply District 23	4.6	TX0063053	4
Easthaven WWTP	4.47	TX0034886	11
Intercontinental Airport WWTP	4.33	TX0034916	12
Chelford City Regional Wastewater Treatment Plant	3.73	TX0056481	1
Jackrabbit Road Pud WWTP	3.7	TX0046621	23
Willowood WWTP	3.57	TX0020788	54
Northbelt WWTF	3.47	TX0103721	9
White Oak WWTP	2.95	TX0057347	15
Clinton Park WWTP	2.87	TX0026433	21
Harris County Wcid 111 WWTP	2.8	TX0027201	18
Imperial Valley WWTP	2.59	TX0020478	15
Copperfield Plant WWTP	2.34	TX0075884	1
Renn Road Mud WWTP	2.16	TX0078964	6
Memorial Villages Wa WWTP	2.02	TX0047457	3
Greenwood Forest WWTP	1.97	TX0033243	13
Homestead WWTP	1.92	TXR05FF72	24
Willowbrook WWTP	1.88	TX0113131	10
Timber Lane Utility District WWTP	1.78	TX0046680	38
Fort Bend County Mud 30 WWTP	1.73	TX0078751	8
Lake Forest Regional WWTP	1.7	TX0046833	5
Metro Central WWTP	1.7	TX0069736	11
Grand Mission Mud 1 WWTP	1.56	TX0123749	4
Trail Of The Lakes Mud WWTP	1.45	TX0074021	4
Harris County Wcid 119 WWTP	1.43	TX0021211	14
Harris County Mud 26 WWTP	1.42	TX0056537	48
Mayde Creek Mud	1.29	TX0076660	7
Harris County Mud 102 WWTP	1.28	TX0052906	13
Greenwood Ud - WWTP	1.22	TX0020800	6
Grand Lakes Mud 4	1.22	TX0099856	0
Cnp Ud WWTP	1.22	TX0055166	7
Harris County Mud 70	1.21	TX0062031	2
Harris County Mud 165 WWTP	1.19	TX0127388	2
Reid Road Mud 1 WWTP	1.16	TX0053325	17
Cypress Hill Mud 1 WWTP	1.16	TX0086011	3
Park Ten Mud	1.12	TX0026395	36
Londonderry WWTP	1.12	TX0058530	1
Charterwood Mud WWTP	1.1	TX0046841	2
Harris County Mud 278 WWTP	1.08	TX0127124	23
Langham Creek Utility District-Plant 1 - 17650 Glenmorris Dr	1.07	TX0064734	1
Winchester Country Regional WWTP	1.06	TX0082317	27
Harris County Mud 150 WWTP	1	TX0072893	5
Harris County Mud 189 WWTP	1	TX0083712	36
Northwest Harris Co Mud#'S 21,22,23 WWTP	0.98	TX0079821	30
Remington Mud 1 Wastewater Treatment Plant	0.95	TXR05U981	11
Westway WWTF	0.94	TX0026875	7
Harris County Mud 344 WWTP	0.93	TX0104965	8
Harris County Mud 127 WWTP	0.9	TX0083500	0
Harris County Mud No.33 WWTP	0.84	TX0074136	9
Emerald Forest Ud WWTP	0.83	TX0027324	5
Rayford Road Mud WWTP	0.83	TX0078263	0
Northampton Mud WWTP	0.83	TX0058548	3
Harris County Mud 365 WWTP	0.83	TX0116009	2
Westlake Mud 1 WWTP	0.79	TX0053091	3
NW Harris County Mud 20 WWTP	0.73	TX0081337	3
Harris County Mud 391 WWTP	0.73	TX0124770	5
Harris-Fort Bend Counties Mud 3 WWTP	0.72	TX0124451	0
Harris County Mud 86 WWTP	0.72	TX0078824	1
Harris County Mud 155 WWTP	0.72	TX0100161	54
West Harris County Mud 6	0.71	TX0089621	0
Fort Bend County Mud 34 WWTP No 1	0.71	TX0085448	46
Harris County Mud 49 WWTP	0.71	TX0074446	3
Montgomery County Mud 99 WWTF	0.7	TX0127752	28
Harris County Wcid 74 WWTP	0.69	TX0023825	0
Barwood Wastewater Treatment Plant	0.68	TX0022853	4
Harris County Mud 230 WWTP	0.65	TX0094706	20
Mount Houston Rd Mud WWTP	0.65	TX0023515	11
Mills Road Mud WWTF	0.63	TX0075132	5
Rolling Creek Ud WWTP	0.63	TX0097373	9
Fallbrook Ud WWTP	0.63	TX0021237	9
West Park Mud WWTP	0.62	TX0086185	3
Prestonwood Forest Ud WWTP	0.62	TX0046701	8
Beechnut Mud	0.62	TX0084425	0
Harris County Mud 196 WWTP	0.61	TX0088838	39
Greensbrook WWTP	0.61	TX0131482	0
Horsepen Bayou Mud	0.59	TX0079537	9
Harris County Mud 5 WWTP	0.59	TX0026344	18
Fondren Road WWTF	0.57	TX0020052	4
West Harris County Mud 7 WWTP	0.57	TX0079618	5
North Park Pud WWTP	0.57	TX0072567	2
Nottingham Country Mud WWTP	0.57	TX0089346	0
Southwest Harris Co Mud 1	0.56	TX0091979	4
Harris County Ud 16 WWTP	0.51	TX0091481	4
Chimney Hill Mud WWTP	0.5	TX0085588	5
Harris County Mud 8 WWTP	0.5	TX0075698	4
Harris County Mud 285 WWTP	0.5	TX0095451	1
Bissonnet WWTP	0.49	TX0056952	0
West Harris County Mud 15 WWTP	0.49	TX0083496	18
Fry Road Mud WWTP	0.48	TX0076775	2
Harris County Mud 202 WWTP	0.47	TX0091901	3
Green Trails Mud WWTP	0.47	TX0085332	3
North Green Mud WWTP	0.47	TX0083381	5
Harris County Mud 304-Plant - 12402 Hamillcrest Dr	0.46	TX0097225	0
Harris County Mud 23 WWTP	0.45	TX0062235	3
Harris County Mud 130 WWTP	0.44	TX0091316	0
Addicks Ud WWTP	0.44	TX0112585	12
Harris County Mud 286 WWTF	0.44	TX0096920	3
Heather Glen WWTP	0.44	TX0021245	0
City Of Jersey Village	0.44	TX0092606	4
Bilma Pud - WWTP	0.43	TX0077941	7
Harris County Mud 191 WWTP	0.41	TX0090476	2
Harris County Mud 203 WWTP	0.41	TX0084875	3
El Dorado Ud - WWTP	0.41	TX0025623	5
White Oak Bend WWTP	0.41	TX0076651	1
Forest Hills Mud WWTP	0.4	TX0071820	6
Kindred Ii Lp WWTF	0.4	TX0023868	1
Harris County Mud No 249 WWTP	0.4	TX0116068	9
Harris Co Mud 149 WWTP	0.4	TX0091626	11
Harris County Mud 276 WWTP	0.4	TX0095532	20
Harris County Mud 180	0.39	TX0079529	6
3300' E Of The Interx Of Ih10	0.39	TX0128236	2
Sunbelt Fwsd High Meadows Subdivision	0.38	TX0021261	3
Fairgreen WWTP	0.37	TX0071382	22
Rolling Fork Pud WWTP	0.36	TX0026697	5
Harris County Wcid 76 WWTP	0.35	TX0025291	16
Harris County Mud 6 WWTP	0.35	TX0026352	7
Harris County Mud 104 WWTP	0.34	TX0074632	2
Harris County Mud 374	0.34	TX0124974	28
Harris County Mud 11 WWTP	0.33	TX0111767	2
Harris County Mud 345 WWTF	0.33	TX0086690	12
Northwest Harris County Mud 16 WWTP	0.32	TX0075981	6
Woodland Oaks WWTP	0.32	TX0063479	0
Forest Cove WWTP	0.32	TX0115924	23
Harris Co Mud 216 WWTP	0.32	TX0092584	9
3000' E Of Interx W Rayford Rd	0.31	TX0126152	5
Castlewood Regional WWTP	0.3	TX0071625	5
Richey Road Mud WWTF	0.3	TX0092967	26
Harris County Mud 360	0.3	TX0113107	1
Timberlake WWTP	0.29	TX0046868	0
Harris County Mud 185 WWTP	0.29	TX0079707	10
Woodcreek Mud WWTP	0.28	TX0075671	3
Rolling Hills WWTP	0.27	TX0070165	2
Northwest Harris County Mud 24-Plant - 5303 Hiltonview	0.27	TX0092312	0
Spencer Road Pud-Plant - 57945 Jackrabbit Rd	0.27	TX0026263	0
Montgomery County Ud 2 WWTP	0.26	TX0032514	2
Montgomery County Mud 83 WWTP	0.25	TX0126209	0
Harris County Mud 36 WWTP	0.25	TX0084085	1
Inverness Forest Id WWTF	0.24	TX0023612	14
Harris County Mud 371 WWTP	0.23	TX0117129	57
Harris County Mud 119 WWTP	0.22	TX0092908	4
West Harris County Mud 21 WWTP	0.22	TX0109126	33
Harris County Mud 401 WWTP	0.21	TX0125687	18
Encanto Real Utility District WWTP	0.21	TX0042099	0
Northwest Harris County Mud 19 WWTP	0.2	TX0081264	9
Northwest Harris County Mud 29 WWTP	0.2	TX0093726	1
Memorial Hills Ud WWTP	0.2	TX0046671	2
City Of Southside Place WWTP	0.2	TX0026972	85
Fort Bend County Mud 190 WWTP	0.19	TX0129518	2
Rankin Road West Mud	0.19	TX0097047	9
Luce Bayou Pud WWTP	0.18	TX0074870	13
Harris County Mud No 43	0.16	TX0139220	0
Indian Shores Plant	0.16	TX0027758	0
Royalwood South WWTP	0.15	TX0062952	2
Harris County Mud 166 WWTP	0.15	TX0089494	6
Sheldon Woods WWTP	0.15	TX0020991	0
West Harris County Mud 4 WWTP	0.14	TX0079359	0
North Forest Mud	0.14	TX0058424	1
E Montgomery Cnty Mud 3 WWTP 1	0.14	TX0125300	2
Tidwell Timbers WWTP	0.1	TX0101460	7
Katy Isd Mayde Creek WWTP	0.09	TX0079201	12
Harris County Mud 366 WWTP	0.09	TX0119431	6
Harris Co Mud 250 WWTP	0.07	TX0093581	1
Harris County Mud 24 WWTP #1	0.06	TX0113123	1
Greens Parkway Mud WWTP	0.05	TX0093475	0
Anne Louise Educational Complex	0.0087	TX0115797	0
Bear Creek Pioneers Park WWTP	0.008	TX0068047	2
Jacintoport Terminal WWTP	0.004	TX0087998	0
City Of Houston Sims Bayou South	—	TX0105058	1
Harris County Mud 278 WWTP	—	TX0097071	0
Hunterwood Apartments WWTF	—	TX0135062	8

Other Texas cities with capital plans

Corpus Christi ($3.4B)Fort Worth ($2.0B)Laredo ($846M)Baytown ($342M)Waco ($290M)Beaumont ($261M)Arlington ($238M)Conroe ($208M)All Texas plans →

Houston capital plan questions

Sources and methodology

Budgets and years are as published in Houston’s capital improvement plan or adopted budget. Klarifi extracts the water, sewer and wastewater line items from the published document, keeps the page reference for each one, and assigns a project type from the title and description with a keyword classifier. Figures are planning budgets, not awarded contracts, and can change when a plan is re-adopted.

Documents: Adopted Budget 2025 (22 line items).

Data refreshed September 11, 2026.

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