Well Water Testing Cost in Texas (2026)
Well water testing in Texas runs $50–$400 depending on the panel. Here's regional pricing, what to test for, and low-cost lab options.
3 min read
Cost GuideWell WaterTexas
Well Water Testing · Texas
Well Water Testing services in Texas
790 licensed providers across 162 counties
Texas well drilling and pump installation are licensed by the Texas Department of Licensing and Regulation (TDLR), separate from TCEQ's septic oversight. The state has over 1 million private water wells serving approximately 2.23 million residents, with 60% of the state's total water supply coming from groundwater. TDLR requires well drillers to submit completion reports within 60 days to both TDLR and TCEQ. There is no statewide mandatory testing requirement for existing private wells, but testing is recommended annually for bacteria and nitrates at minimum.
Basic bacteria and nitrate testing in Texas costs $75-$200, while comprehensive panels covering metals, pH, hardness, volatile organic compounds, and radionuclides typically run $200-$300. Properties near military installations should test for PFAS, as multiple Texas bases including Fort Hood (Bell County), Joint Base San Antonio (Bexar County), and Naval Air Station Fort Worth (Tarrant County) have documented PFAS contamination. West Texas wells in the Permian Basin may contain elevated levels of naturally occurring arsenic, fluoride, and total dissolved solids from deep geological formations.
Texas's 101 Groundwater Conservation Districts (GCDs) across 181 of 254 counties add a local regulatory layer for well permitting and production limits. Even exempt domestic wells typically must be registered with the local GCD. The Edwards Aquifer Authority manages pumping permits for approximately 1,200 permit holders in the 8-county San Antonio region. Hill Country wells through fractured limestone can produce excellent water quality but are vulnerable to surface contamination through karst features. East Texas Carrizo-Wilcox wells often have elevated iron and manganese requiring filtration. Panhandle wells tapping the declining Ogallala Aquifer face increasing depth and yield concerns. Testing through a TCEQ-approved lab ensures results are accepted for regulatory and real estate purposes.
Find well water testing by county
Montgomery County
41 providers
Harris County
40 providers
Midland County
24 providers
Bexar County
23 providers
Hays County
23 providers
Ector County
19 providers
Brazoria County
18 providers
Erath County
16 providers
Denton County
15 providers
Gaines County
15 providers
Parker County
15 providers
Travis County
15 providers
Tarrant County
14 providers
Randall County
12 providers
Dallam County
10 providers
Burnet County
9 providers
Houston County
9 providers
Lubbock County
9 providers
Potter County
9 providers
Smith County
9 providers
Taylor County
9 providers
Walker County
9 providers
Williamson County
9 providers
Deaf Smith County
8 providers
Henderson County
8 providers
Lavaca County
8 providers
Medina County
8 providers
Nacogdoches County
8 providers
Wise County
8 providers
Colorado County
7 providers
Comal County
7 providers
Grimes County
7 providers
Kerr County
7 providers
Liberty County
7 providers
Moore County
7 providers
Austin County
6 providers
Dawson County
6 providers
Grayson County
6 providers
Hale County
6 providers
Johnson County
6 providers
Kendall County
6 providers
Kimble County
6 providers
Martin County
6 providers
Somervell County
6 providers
Wood County
6 providers
Bandera County
5 providers
Bowie County
5 providers
Carson County
5 providers
Dallas County
5 providers
El Paso County
5 providers
Ellis County
5 providers
Frio County
5 providers
Gillespie County
5 providers
Jasper County
5 providers
McLennan County
5 providers
Terry County
5 providers
Uvalde County
5 providers
Atascosa County
4 providers
Caldwell County
4 providers
Collin County
4 providers
Fort Bend County
4 providers
Gregg County
4 providers
Hockley County
4 providers
Hood County
4 providers
Montague County
4 providers
Orange County
4 providers
Pecos County
4 providers
Runnels County
4 providers
Tyler County
4 providers
Val Verde County
4 providers
Washington County
4 providers
Bee County
3 providers
Bell County
3 providers
Brazos County
3 providers
Brewster County
3 providers
Castro County
3 providers
Crockett County
3 providers
Crosby County
3 providers
DeWitt County
3 providers
Fayette County
3 providers
Hamilton County
3 providers
Lampasas County
3 providers
Mitchell County
3 providers
Tom Green County
3 providers
Van Zandt County
3 providers
Waller County
3 providers
Wharton County
3 providers
Wheeler County
3 providers
Angelina County
2 providers
Bailey County
2 providers
Bastrop County
2 providers
Briscoe County
2 providers
Cameron County
2 providers
Collingsworth County
2 providers
Duval County
2 providers
Galveston County
2 providers
Gonzales County
2 providers
Hansford County
2 providers
Hardin County
2 providers
Hemphill County
2 providers
Hunt County
2 providers
Jack County
2 providers
Jefferson County
2 providers
Lamb County
2 providers
Lee County
2 providers
Limestone County
2 providers
McCulloch County
2 providers
Nueces County
2 providers
Panola County
2 providers
Polk County
2 providers
Real County
2 providers
Robertson County
2 providers
Victoria County
2 providers
Wilson County
2 providers
Yoakum County
2 providers
Anderson County
1 provider
Aransas County
1 provider
Armstrong County
1 provider
Baylor County
1 provider
Blanco County
1 provider
Brown County
1 provider
Calhoun County
1 provider
Callahan County
1 provider
Camp County
1 provider
Cherokee County
1 provider
Coryell County
1 provider
Eastland County
1 provider
Edwards County
1 provider
Glasscock County
1 provider
Goliad County
1 provider
Guadalupe County
1 provider
Hardeman County
1 provider
Harrison County
1 provider
Hopkins County
1 provider
Jackson County
1 provider
Jim Hogg County
1 provider
Jim Wells County
1 provider
Karnes County
1 provider
Kleberg County
1 provider
La Salle County
1 provider
Lipscomb County
1 provider
Live Oak County
1 provider
Llano County
1 provider
Madison County
1 provider
Marion County
1 provider
Mills County
1 provider
Motley County
1 provider
Newton County
1 provider
Nolan County
1 provider
Oldham County
1 provider
Palo Pinto County
1 provider
Parmer County
1 provider
Reagan County
1 provider
Refugio County
1 provider
San Patricio County
1 provider
San Saba County
1 provider
Shelby County
1 provider
Sutton County
1 provider
Trinity County
1 provider
Wilbarger County
1 provider
Willacy County
1 provider
Zavala County
1 provider
Why choose a licensed provider?
Texas requires licensing for septic system contractors and well drillers to protect public health and the environment. Licensed providers carry proper insurance, follow state regulations, and have demonstrated competency through testing and experience requirements. Every provider on this site is checked against state licensing records before being listed.
Well Water Testing in Texas — common questions
How often do I need well water testing?
- Well Water Testing is typically scheduled at least annually for coliform and nitrates. Local conditions (household size, soil type, water usage) can shift that window, so a licensed pro will set a cadence that fits your system.
How much does well water testing cost in Texas?
- Well Water Testing typically ranges $25 – $500 nationally (HomeGuide, Angi 2026). Actual prices depend on scope, site access, soil conditions, and local permitting. All providers on this site offer free, no-obligation quotes so you can compare before committing.
Do I need a licensed pro for well water testing?
- Yes. Even routine well water testing work is regulated in most states. Every provider on this site is checked against state licensing databases before being listed.
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