Here’s the question that trips up new lake-house owners in Wood County: who issues your septic permit? For most of the county, the answer is the Wood County office, which covers Quitman, Mineola, Winnsboro, and the farm and timber land between. But hold property inside the Lake Fork Reservoir project boundary and your on-site sewage permit comes from the Sabine River Authority’s Lake Fork Division instead: same county, different authority, different desk. With Lake Fork, Lake Quitman, Lake Winnsboro, Lake Hawkins, and Lake Holbrook all inside county lines, plus lakeside communities like Holly Lake Ranch, that boundary line matters to thousands of households, and it’s the first thing to confirm before you plan an install or a repair.
The ground itself is classic East Texas transition country. Western Wood County lays sandy surfaces over clayey subsoils; the center rolls into reddish loams above deep clay; the east runs sandy-to-loamy over deep subsoil, shading from Post Oak Savannah into Piney Woods. Sand up top percs beautifully until effluent hits that clay layer and moves sideways rather than downward, which is why site evaluations here focus on the restrictive horizon, not the surface. Add 43 inches of rain a year and seasonal perched water, and you get the county’s 2024 permit mix: 300 of 371 authorized systems were surface-irrigation aerobic units, spraying treated water above ground rather than gambling on saturated subsoil.
Don’t mistake rural for sleepy. Driven by lake development and Dallas-retiree acreage, Wood County has authorized 3,429 systems in the past decade, 38th of Texas’s 254 counties and ahead of several metro-adjacent ones. Groundwater mostly comes from the Carrizo-Wilcox Aquifer beneath, hard but dependable, one more reason spray systems that keep effluent near the surface and away from wells suit this county. New installation options, pumping costs, and the county-versus-SRA permit paths are laid out in our Wood County permit guide.
Wood County office: 213 W. Bermuda St., Quitman, (903) 763-5308, M–Th mornings. Lake Fork boundary properties: SRA Lake Fork Division, (903) 878-2262. Permit walkthrough here.
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Covers w/in 2,000 ft of the project boundary of: Lake Fork Reservoir (Hopkins, Rains, Wood); Lake Tawakoni Reservoir (Hunt, Rains, Van Zandt); Toledo Bend Reservoir (Newton, Sabine, Shelby)
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.
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
Wood County issues the septic permit for the unincorporated county. It holds that job only because the commissioners court adopted an on-site sewage facility order and TCEQ approved it (Health and Safety Code § 366.031), and § 366.032(b) makes that order prevail wherever it is stricter than 30 TAC Chapter 285. Ask the office for its current order — Texas counties have no general zoning power, so the order, not zoning, is where a local siting rule sits.
Nothing in Wood 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.
The dominant constraint here is a seasonal high water table (28.2% of rated soils), followed by clayey subsoil that water moves through too slowly (19.0%). NRCS rates 32.2% of rated ground very limited for a standard soil absorption field, 88.1% for subsurface drip and 78.4% for surface application with disinfection.
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