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Septic riser lid in a rural yard near Greeley, CO, a sign the house is on septic rather than sewer

For buyers on the growing edges of town

Greeley Quality Septic Guide to Septic vs Sewer Around Greeley

Greeley, Windsor, Severance and Johnstown are growing into farm ground, and the house you are looking at could be on either. Here is how to tell, and why it matters.

  • 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 gets this question from buyers more than any other: is this house on septic or on sewer? Around Greeley the answer is not obvious from the street. A new subdivision on sewer can sit next to an older acreage on septic, and a house inside town limits can still have a tank in the yard. This guide explains how to find out, what each costs to own, and what changes when sewer reaches a septic neighborhood.

Septic riser lid in a rural yard near Greeley, CO, a sign the house is on septic rather than sewer

How to tell which one a house has

  1. Look at the utility bills. A house on public sewer pays a sewer charge to the city, town or sanitation district. No sewer line on the bill usually means septic.
  2. Look in the yard. A round green or black riser lid, a concrete lid, or a mound or flat open area kept clear of trees and buildings often marks a tank and a field.
  3. Look in the basement or crawl space. Find where the main drain leaves the house; on septic, it heads to a tank a short distance away rather than toward the street.
  4. Check the county. Weld County's septic permits are on record and searchable by parcel through the county's property portal. A permit on file is a strong sign the house was built on septic.
  5. Ask the seller, in writing, and ask for pumping records.

What owning each one costs

On sewer

A monthly or quarterly sewer charge, forever, and no tank to maintain. The pipe from the house to the street is usually the owner's responsibility.

On septic

No sewer bill. Instead, a pump-out every few years, which around Greeley typically runs $475 to $800 for a tank up to 1,000 gallons, and occasional repairs. The large, rare cost is a replacement field when the old one wears out, which typically runs $22,000 to $29,000 here, and more where the soil needs an engineered design.

The honest comparison

A well-kept septic system on good soil can be cheaper than sewer over many years. A neglected one on slow clay can be far more expensive. The difference is almost entirely maintenance and ground.

Not sure what the system needs? Describe what you are seeing and get a straight answer on what it usually takes.

Call (970) 442-7072

Buying a house on septic

In Weld County no inspection is required when a house is sold, so a buyer has to ask for one. Get a septic inspection, ask for the permit on file and the pumping history, and find out how many bedrooms the system was designed for. A house with five bedrooms on a tank and field sized for three is a system working beyond its design.

In Larimer County, including Timnath, Fort Collins, Loveland and most of Berthoud, the seller has to provide an inspection and a county Acceptance Document before closing, unless an exemption applies. Windsor and Johnstown straddle the two counties, so check which one the parcel is in.

When sewer comes to a septic neighborhood

Around fast-growing Windsor, Severance and Johnstown, sewer lines extend as new subdivisions go in, and older acreages nearby sometimes gain the option to connect. Whether a connection is required, and on what terms, depends on the town or district, not the county, so ask them directly.

The county's side of it is clear. Weld County's policy is to require public sewer wherever it is feasible, and a property inside a sewer district needs a letter from the district saying it has no objection before Weld will issue a septic permit. So if your septic system fails and sewer is available, a new septic system may not be an option at all.

When a house does connect, the old tank has to be dealt with properly: pumped by a licensed cleaner and abandoned, which usually means crushing or filling it so it cannot collapse or hold water later.

Septic in town limits

It surprises people, but parts of most towns around Greeley still have septic, usually older lots annexed into town after they were built. Being inside town limits does not mean being on sewer. The utility bill and the county permit records are the reliable answer.

Questions to ask before you buy

  • Is the house on septic or sewer, and is it on the utility bill?
  • Is there a county septic permit on file, and how many bedrooms was it designed for?
  • When was the tank last pumped, and by whom?
  • Is sewer available on the street, and would connection be required if the system failed?
  • Is the parcel in Weld County or Larimer County?

Not sure what the system needs? Describe what you are seeing and get a straight answer on what it usually takes.

Call (970) 442-7072

Wells and septic on the same lot

Many acreages around Greeley have a domestic well as well as a septic system, and the two have to be kept apart. Weld County's setbacks put a septic tank at least 50 feet from a well and a leach field at least 100 feet away. When you look at a property, find both and pace off the distance.

For a house with a well and a septic system, Weld County offers a loan approval inspection, an evaluation done mainly for the mortgage lender as a condition of the sale, which an owner or buyer can also request. Under the 2026 fee schedule it is $200, or $248 with a water sample. It is a county check, not a full private inspection, but the water sample is worth having on any house where the well and the septic share a lot.

Questions people ask

How can I tell if my house is on septic or sewer?

Check the utility bill for a sewer charge, look for a tank lid in the yard, and search the county's septic permit records by parcel.

Is septic cheaper than sewer?

Often, over many years, if the system is maintained and the soil is good. A replacement field typically costs $22,000 to $29,000 here, which can erase the savings.

Do I need a septic inspection to buy a house near Greeley?

Not in Weld County, but it is strongly recommended. In Larimer County the seller must provide one unless exempt.

Can I get a new septic system if sewer is available?

Usually not. Weld County requires public sewer where feasible and needs the district's no-objection letter for a septic permit inside a sewer district.

What happens to the septic tank when a house connects to sewer?

It is pumped by a licensed cleaner and properly abandoned, usually crushed or filled.

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