Septic Records and Services in Davenport, Washington

Davenport is in Lincoln County, Washington. We do not yet hold septic record counts for Lincoln County, Washington; the county page has what we do have on file. 10 septic businesses on record with a Davenport address, below.

Providers with a Davenport address are on record in more than one county: mostly Lincoln County, and also Stevens County. Each county's records are held separately; see the county page for the one that matches the property.

Where Lincoln County, Washington septic records are kept

Lincoln County, Washington publishes onsite-wastewater records. Records can be searched without an account.

County records portal

Septic companies in Davenport, Washington

10 businesses we have on record with a Davenport address: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.

Listing here is not an endorsement. We take no fee from any company on this page, we are not affiliated with them, and being listed does not mean the business is a customer of ours. Fields shown are limited to what we actually hold: no street address, hours or license numbers are shown unless we hold them, and none are invented.

Local septic work: pumping, installation, design, inspection, repair

• Pumping. A pumper needs the lid location and tank capacity. Locating a buried lid without the recorded as-built is billed as labor.
• Installation. A permit before work starts, an inspection while the system is open, and a final as-built submitted at completion, which is what ends up in the county file.
• Design. Design flow from bedroom count, a soil and site evaluation, tank sizing and the required setbacks. On a lot with an existing permit, the original soil work is often already on file.
• Inspection. Lenders and many counties require one at sale or transfer. Inspectors start from the recorded as-built; without it they are probing blind.
• Repair. Starts from the existing as-built, since the current tank, field and any reserve area constrain what can be rebuilt.

Look up a specific property

Our map shows each parcel as septic, sewer, or unclassified, with the records we hold attached to the parcel.

Open the parcel map

More on Davenport septic records

• Septic records for Lincoln County, Washington
• Company directory for Lincoln County
• Full company directory listing for Davenport
• Septic regulations in Washington

Common questions

Is there septic data specific to Davenport, or just Lincoln County?

We hold county-level septic and sewer classification, not a per-city breakdown. The figures on this page for Lincoln County, Washington are county totals, clearly labelled as such, not an estimate for Davenport alone.

How many septic companies serve Davenport?

10 businesses on record with a Davenport address in our directory: pumping, installation, design, inspection and repair.

Can I get a septic design for free?

Yes. You can generate and view a code-referenced septic design for a parcel at no cost: design flow from bedroom count, tank sizing, soil-driven drainfield area, dispersal method and setbacks.

Where are septic records for Davenport kept?

Records for properties in Davenport are held by Lincoln County, Washington.

Figures on this page were last verified 2026-08-31.