Zapata County septic services.

We’re verifying Zapata County providers against TCEQ license records now — the directory below grows as pros pass verification.

Updated July 31, 2026

Zapata County, at a glance

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License-verified providers listed: 0
Permitting authority: Zapata County Authorized Agent

Providers

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Permits

Who issues them here.

Zapata County Authorized Agent

2505 N US Hwy 83, Zapata 78076
(956) 765-6201
GUILLERMO_SAENZ@YAHOO.COM
Official septic information ↗

Permit fees, forms & process

New installs and major repairs need a permit from the local authorized agent — usually the county, sometimes a city — and the rules that bind are the local ones.

This county’s full guide is still in production — the authority contact shown here is the official source in the meantime.

All Texas permit guides

Local rules

What’s different in Zapata County.

Four things decide what you can build and what it costs: zoning, environmental protections, power for aerobic systems, and the ground itself. We publish each one only where we have checked it — and say so plainly where the answer is “same as the rest of Texas”.

Zoning & land use

Zapata County issues the septic permit for the whole county, under an on-site sewage facility order the commissioners court adopted and TCEQ approved (Health and Safety Code § 366.031). Section 366.032(b) makes that order prevail wherever it is stricter than 30 TAC Chapter 285. Texas grants county zoning power only in named places, and Zapata County is one: Local Government Code Chapter 231, Subchapter L, covers Falcon Lake.

Source: Texas Commission on Environmental Quality, OSSF authorized agent county lookup (OARS) — result for Zapata County ↗ · retrieved Aug 7, 2026

Also: Texas Local Government Code Chapter 231, County Zoning Authority (current through the 89th Legislature, 2nd Called Session, 2025) ↗ · retrieved Aug 7, 2026

Environmental protections

Nothing in Zapata County changes this. Texas adds a separate approval path over the Edwards Aquifer recharge, transition and contributing zones, where TCEQ requires an Edwards Aquifer Protection Plan under 30 TAC Chapter 213. Elsewhere the Chapter 285 rules stand on their own.

How Texas permitting works

Checked against TCEQ, 30 TAC Chapter 213 (Edwards Aquifer), Subchapters A and B — Edwards Aquifer and Contributing Zone in Medina, Bexar, Comal, Kinney, Uvalde, Hays, Travis and Williamson Counties (chapter review date 8 March 2024) ↗ · retrieved Aug 7, 2026

Geology & soil

The dominant constraint here is clayey subsoil that water moves through too slowly (24.2% of rated soils), followed by bedrock close to the surface (17.4%). NRCS rates 36.8% of rated ground very limited for a standard soil absorption field, 18.6% for subsurface drip and 16.8% for surface application with disinfection. Where a conventional field will not pass, surface application is usually the route that does.

Source: USDA Natural Resources Conservation Service, Soil Survey Geographic Database (SSURGO), queried via Soil Data Access (gSSURGO vintage 21 November 2025) ↗ · retrieved Aug 7, 2026

i3 of 4 local factors researched for this county so far. Each one is published with the authority it came from and the date we read it. Methodology

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