Timnath, on the bluff above the Poudre
Greeley Quality Septic Septic Service in Timnath, CO
A Larimer County town growing fast between Fort Collins and Windsor, where every house sale on septic needs a county inspection.
- Greeley and nine towns within 20 miles
- Written price before any digging
- Licensed, insured local contractors
- Weld and Larimer County rules covered
Greeley Quality Septic connects homeowners in and around Timnath with local septic crews for transfer of title inspections, pumping, repairs and replacement systems. Timnath was a small farm town for most of its history, counted about 6,500 people in 2020 and is estimated near 10,800 now. The new neighborhoods are sewered; the farmhouses and acreages around them are not.
A $595 transfer inspection booked when the house is listed is routine; discovered missing near closing, it can delay the sale, and a failed field found then becomes a $28,000 to $35,000 negotiation under pressure.
$595 to $1,395 for a transfer inspection with the county fee
A Larimer County transfer of title inspection typically costs about $475 plus the county's roughly $120 Acceptance Document fee, so $595 to $1,395 in total depending on whether the tank needs pumping, which adds $475 to $800 for a tank up to 1,000 gallons. A full replacement on this ground typically runs $28,000 to $35,000.
Get a price: (970) 442-7072What failing systems look like around Timnath
- Water ponding over the field after irrigation or a storm
- A sewage smell near the tank or field
- Water returning to the tank from the field after pumping
- Slow drains throughout an older farmhouse
- A system with no permit on file and no pumping records
Larimer County rules apply
Timnath is in Larimer County, so septic permits come from the Larimer County Department of Health and Environment. In 2026 a new system permit is $1,881, a major repair $1,320 and a minor repair $750. Larimer's Transfer of Title program requires an inspection and an Acceptance Document before most sales of a house on septic, with exemptions for systems approved within the last three years, family and estate transfers and a few others. The transfer of title page covers who can inspect and what goes to the county.
River ground and slower clay
Timnath sits on a small bluff east of the Cache la Poudre, and its soils reflect both. In a 25-point USDA sample, 5 points rated "not limited" for a conventional septic field, 8 "somewhat limited" and 11 "very limited". Slow water movement led, followed by seepage in the bottom layer, flooding and a shallow saturated zone near the river. The soils include Kim, Loveland, Olney and Caruso loams.
The Poudre bottoms carry the flooding and groundwater limits; the higher ground carries slow water movement. Either way, a replacement here is often larger or engineered, and starts with a soils evaluation. Until then, the pumper's checks at each visit, the sludge and scum depths, the outlet baffle and the effluent filter, are what keep solids out of a leach field with that little margin.
Not sure what the system needs? Describe what you are seeing and get a straight answer on what it usually takes.
Call (970) 442-7072Systems around town
Larimer County does not publish a count of its septic systems. Weld County's permit map, which covers the land just east of Timnath, shows about 260 distinct septic permits within three miles of the middle of town and about 830 within five, all on the Weld side, so the total around Timnath is well above that.
From Overland Trail stop to boomtown
The Sherwood Station stop on the Overland Trail opened near Timnath in 1860, and the town itself was founded in 1882 when the Greeley, Salt Lake and Pacific Railroad linked Greeley and Fort Collins. For a century it farmed potatoes, alfalfa, sugar beets and cattle. Its position half a mile east of the Harmony Road and I-25 interchange is why it is now one of the fastest-growing towns in Colorado.
Listing a house on septic
Book the inspection when you list. The report can be up to 12 months old, so an early inspection usually covers the whole sale and gives time to fix anything it finds.
Call (970) 442-7072Questions people ask
Does Timnath require a septic inspection when I sell?
Yes. Timnath is in Larimer County, which requires a Transfer of Title inspection and Acceptance Document unless an exemption applies.
How much does a transfer of title inspection cost in Timnath?
About $475 plus about $120 for the county document, and $595 to $1,395 in total when the tank also needs pumping.
What are the signs my septic system is failing in Timnath?
Ponding over the field after storms or irrigation, a smell near the tank, and water returning to the tank after pumping.
Who issues septic permits in Timnath?
The Larimer County Department of Health and Environment.
How much is a new septic permit in Larimer County?
$1,881 for a new system in 2026, including the state surcharge.
Talk it through before anyone digs
Say what the house is doing, how old the system is and when the tank was last pumped. You will hear what the job usually involves, what it tends to cost, and whether it needs digging at all.
Call (970) 442-7072