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Gregg County Septic Service Areas
One county, and the communities in it, because what the ground does changes from one to the next.
The communities below are the ones this site covers. Quote requests from them are passed to a licensed OSSF professional where one is available. They are not interchangeable: lot sizes, soil and how close the nearest sewer runs all change from one to the next, and so does what a system is likely to cost.
Inside city limits, check with the city first. Gregg County’s on-site sewage order of 31 March 2026 applies to the county outside incorporated cities. Inside a city, including Longview, Kilgore, White Oak and Gladewater, it applies only where that city has signed an intergovernmental contract with the county. If your property is inside city limits, ask the city which office permits septic work there, and confirm with the Gregg County Health Department at (903) 237-2628. Under state rules, TCEQ itself is the permitting authority wherever no local OSSF order, ordinance or resolution has been approved. Sources: Gregg County OSSF order, Section 6; 30 TAC §285.3.
Longview
The city core is on sewer, but the acreage and the subdivisions outside the service line are almost all on septic. Inside city limits, ask the City of Longview who permits septic work before you apply.
White Oak
Small city west of Longview with a mix of sewer and older private systems on larger lots. Inside city limits, check with the city who permits septic work.
Gladewater
Straddles the Gregg and Upshur line. Inside city limits, ask the city who permits septic work; outside them, the county you are in decides, so check before you apply.
Kilgore
Split between Gregg and Rusk counties, with a lot of mid-century systems now reaching replacement age. Inside city limits, check with the city who permits septic work.
Lakeport
Small lots near the lake where setbacks to water do the most damage to a site plan.
Easton
Rural southern Gregg County. Well and septic is the norm, which means the one-acre minimum applies.
Liberty City
Unincorporated and effectively all on-site. Sandy surface soils, variable clay depth.
Warren City
Small community on the Rusk line, mostly larger residential tracts.
Clarksville City
Older platted lots, several predating the current lot-size rules.
Not on the list?
Send the address anyway. Coverage follows where the professionals actually work rather than a line on a map, and the edges of Gregg County are served by people who cross county lines routinely.
Request a septic quote
We read every request and pass it to a licensed local professional covering Gregg County where one is available. We are still building our list of professionals here, so we cannot promise one is available or say how quickly they will respond.