Can I install a septic system myself?

Most areas require licensed designers or installers and inspections. Check with the Spokane County health department before planning any work yourself.

What is a mound system?

A mound system raises the drain field above the natural soil using sand and fill. It is used where the soil is too shallow, too wet or too slow draining for a conventional field.

Can a replacement system go in the same place?

Sometimes. It depends on the condition of the soil in the old field and local rules. Many replacements use a new area of the yard.

Is SepticTank.com the installer?

No. SepticTank.com connects you with an independent local septic company that serves Cheney. That company designs, installs and prices the system.

Septic System Installation in Cheney, WA

Replacing a failed system or installing one for a new build in Cheney involves more than digging a hole for a tank. Soil testing, system design, permits and inspections all shape the final result.

A local installer can tell you which system types are likely to work on your lot and what the process looks like.

From soil test to finished system

A septic installation starts with a soil and site evaluation, which decides what kind of system the lot can support. A designer then sizes the system for the number of bedrooms, the plan goes to the Spokane County health department for a permit, and the installer digs, sets the tank and builds the drain field before a final inspection.

Choosing a system for your lot

Your lot decides more than your budget does. Good, deep soil allows a conventional tank and field. Tight lots, high water tables and clay often call for an engineered option such as a mound, pressure dosed field or aerobic unit. A designer explains which systems are allowed on your property.

Working with local regulators

Septic rules exist to protect groundwater and neighbors' wells. Before installation, plans are reviewed for setbacks from wells, property lines and water. Inspectors typically check the work before it is covered. Ask your installer what approvals are needed in Cheney and how long review usually takes.

Understanding installation quotes

A complete quote should cover design, permits, excavation, the tank, the dispersal system, inspections and site restoration. Ask what is excluded, such as tree removal, electrical work for pumps or driveway repair. Compare quotes for the same system type.

The first years with a new system

Keep the design drawing and the final inspection report somewhere safe. Pump on the schedule your installer recommends, use water steadily rather than all at once, and keep vehicles and new structures off the tank and field. Let grass establish over the field before heavy use of the yard.

Before you sign

Make sure the contract lists the system type, the scope of work, permit responsibilities, the timeline, cleanup and warranty. Ask how weather or unexpected site conditions will be handled.

How long a new system takes near Cheney

Soil testing, design and permit review usually take longer than construction. In Spokane County, wet seasons and frozen ground can delay soil evaluations, and review times vary through the year. Once the permit is in hand, most installations take a few days to a couple of weeks.

What to avoid on a new system near Cheney

Avoid choosing an installer on price alone, starting before the permit is approved, or placing the field in a low spot that stays wet. Think about future plans for the yard, since a pool, addition or outbuilding cannot go over the field later.

New septic systems in Spokane County

New and replacement systems in Spokane County go through the Spokane County health department, which reviews designs and inspects the work. Soil conditions change from one part of the county to another, so a design that suits a lot in Cheney may differ from one in Medical Lake, Airway Heights, Spokane. A local installer knows those differences.

What Cheney's soil means for a new system

The USDA soil survey rates most mapped soils near Cheney as very limited for septic absorption fields. New systems here often need a mound, pressure distribution or another engineered design, which your soil test will confirm. Cheney averages about 22 inches of precipitation a year, which your designer will factor into where the system goes. About 3 months below freezing mean pipes and components must sit deep enough or be insulated, and installation is usually easiest outside winter.

Local conditions in Cheney that affect septic installation

Among the mapped soils within about two miles of central Cheney, the USDA soil survey rates 96% as very limited for septic absorption fields, 4% as somewhat limited and 0% as not limited. The most common drainage class is well drained. Soils like these often call for careful system design, such as a larger drain field, a mound or another engineered system, and a site evaluation before any new installation or replacement.

Cheney averages about 22 inches of precipitation a year, and December is usually the wettest month. Average temperatures stay below freezing for about 3 months a year, with December averaging 27°F, so tank lids and shallow lines benefit from a layer of snow or mulch rather than being cleared bare.

Sources: USDA NRCS Soil Survey (SSURGO), Soil Data Access; NASA POWER long-term climatology. Soil ratings describe mapped soil types near the city center and do not replace a site evaluation of your property.

What the soil around Cheney means for septic installation

By drainage class, the USDA soil survey maps the land around Cheney as 70% well drained, 14% moderately well drained, 8% somewhat excessively drained, 6% poorly drained, 3% very poorly drained. Most of the soil here drains reasonably well, so a conventional trench field is often possible where the lot allows, but the soil test still decides.

Source: USDA NRCS Soil Survey (SSURGO), Soil Data Access

Septic companies near Cheney

These are the septic companies in our directory closest to Cheney, with straight-line distance. Call any of them directly, or send one request and we will pass it to the best match.

Cheney Septic Service Inc, Cheney, WA, 0.7 mi
Spokane Septic Systems, Spokane, WA, 11.8 mi
Sunshine Septic Service, Spokane Valley, WA, 19.8 mi
Lilac City Septic, Spokane Valley, WA, 23.4 mi
B & B Septic, Harrington, WA, 31.5 mi
Elk Chattaroy Septic Service, Elk, WA, 36.6 mi

Septic Installation in nearby towns

We also cover septic installation in these towns near Cheney:

Medical Lake, 7.5 mi
Airway Heights, 10.7 mi
Spokane, 14 mi
Millwood, 19.4 mi

About Cheney, WA

Cheney is in Spokane County, Washington. About 12,620 people live there, across 4.3 square miles of land (about 2,906 per square mile).

Septic Installation questions in Cheney

Can I install a septic system myself?: Most areas require licensed designers or installers and inspections. Check with the Spokane County health department before planning any work yourself.
What is a mound system?: A mound system raises the drain field above the natural soil using sand and fill. It is used where the soil is too shallow, too wet or too slow draining for a conventional field.
Can a replacement system go in the same place?: Sometimes. It depends on the condition of the soil in the old field and local rules. Many replacements use a new area of the yard.
Is SepticTank.com the installer?: No. SepticTank.com connects you with an independent local septic company that serves Cheney. That company designs, installs and prices the system.