Septic permits and fees in Parker County, Texas
A septic system permit in Parker County costs $480. The county sets that fee in its own schedule. State rules fix the tank floor at 750 gallons. A property line needs 5 feet of clearance. Parker County Permitting Department — Permitting Procedures for Your On-Site Sewage Facility · checked 2026-09-23
$480
Septic system permit
checked 2026-09-23
750 gallons
Tank floor, state rule
checked 2026-09-23
5 feet
From a property line
checked 2026-09-23
Which septic permit applies in Parker County?
The septic system permit, and it starts with the site evaluation. Parker County calls this a site and soil evaluation. A sanitarian, an engineer, or a certified site evaluator must perform it. The permit follows a passing evaluation. The building permit follows the septic permit.
The test tells the team what the lot can hold.
Parker County Permitting Department — Permitting Procedures for Your On-Site Sewage Facility · checked 2026-09-23
What are the current septic fees in Parker County?
$480 for a septic system permit, on the county's own fee schedule.
Applies to a conventional or an aerobic septic permit. Both carry the same fee.
| Conventional Septic Permit Requirements | $480 | a conventional system |
|---|---|---|
| Aerobic Septic Permit Requirements | $480 | a aerobic system |
Parker County sets this fee itself. The state sets no fee for a county-issued permit. Pay by cash, check, or money order. An aerobic permit also needs a signed contract and a filed affidavit. A conventional permit needs neither.
Parker County Permitting Department — Permitting Procedures for Your On-Site Sewage Facility · checked 2026-09-23
What state law fixes for every Texas system
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750 gallons minimum septic tank capacity
Applies to a system that uses 250 gallons a day or less. That covers most homes with one or two bedrooms.
Table II sets this floor and scales up from it. A higher daily use needs a bigger tank, up to a formula for the largest systems.
Texas Administrative Code, Title 30, Chapter 285, §285.91(12), Table II · checked 2026-09-23
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5 feet from any property line
Applies to the septic tank, measured from a property line, a building, or a swimming pool.
The same table sets the same setback for the drainfield.
Texas Administrative Code, Title 30, Chapter 285, §285.91(10), Table X · checked 2026-09-23
What Parker County requires that the state does not
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Parker County sets a one-acre minimum lot size for a new septic system. This rule applies whether the lot has a public water supply or a private well.
The state lets a lot on public water be half an acre. It asks for one acre only where there is no public water supply. Parker County drops that difference and asks for one acre everywhere.
Parker County Order (2007) — Rules for On-Site Sewage Facilities, Section 10(A) · checked 2026-09-23
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Parker County requires a permit for every septic system in the county.
Applies to every on-site sewage facility. It covers a one-family home on a large lot that is otherwise exempt.
The state excuses some homes on a large lot from a permit. Parker County's order ends that excuse.
Parker County Order (2007) — Rules for On-Site Sewage Facilities, Section 10(B) · checked 2026-09-23
Where do you file the application with the county environmental health office?
The county environmental health office, 1114 Santa Fe Drive, Weatherford, TX 76086, 817-598-6175.
The office answers Monday through Friday, seven in the morning to four in the afternoon. Its fax number is 817-598-6177.
Parker County — Permitting · checked 2026-09-23
The steps, in the county's order
- Fill out the state's form for a septic permit.
- One of three people can check the soil and the site. Options are a sanitarian, an engineer, or a certified evaluator.
- One of three people can design the system. Pick an installer, a sanitarian, or an engineer.
- Submit a copy of the recorded plat, or a land survey. It must show the legal description and the lot size.
- Sign a contract with a licensed provider.
- File the affidavit with the county clerk.
- Pay the fee, then wait for the department to approve or deny the application.
Parker County Permitting Department — Permitting Procedures for Your On-Site Sewage Facility · checked 2026-09-23
How do you get a copy of your septic permit record in Parker County?
Ask the county environmental health office for the permit record for the property. Call 817-598-6175 or start at its website.
Parker County — Permitting · checked 2026-09-23
Sources
Each figure on this page has a government source and a checked-on date.
- Parker County — Permitting
- Parker County Order (2007) — Rules for On-Site Sewage Facilities, Section 10(A)
- Parker County Permitting Department — Permitting Procedures for Your On-Site Sewage Facility
- Texas Administrative Code, Title 30, Chapter 285, §285.91(12), Table II
- USDA NRCS Soil Data Access (SSURGO)
Verify before you act. Septic rules are set locally and they change. Check anything here before you spend money on it. Call the county environmental health office, on 817-598-6175.