Routine inspection (O&M inspection)
- Typical range
- $250-350 (TPCHD estimate)
- What changes the price
- System type, buried lids, filters to clean, anything found
Gig Harbor · Key Peninsula · Spanaway
Septic inspection in Pierce County
Selling a home on septic, or got a Health Department inspection notice? Here's what Pierce County requires, what it usually costs, and how to reach certified local septic firms.
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Septic inspection
At a glance
$250-350a typical routine septic inspection, per the Health Department
Every 1-3 yrsroutine inspections, depending on your system type (TPCHD)
RSS at salePierce County requires a Report of System Status before closing
Many homes in rural Pierce County, from the Key Peninsula and the Gig Harbor peninsula to Graham and the country around Eatonville, aren't on a sewer. They use an on-site sewage system: a septic tank plus a drainfield in the yard. The Tacoma-Pierce County Health Department (TPCHD) regulates them, and two moments bring most owners into contact with the rules.
Selling. A sale of a property served by septic can't close without a Report of System Status (RSS) from the Health Department. That starts with an inspection and pumping of every tank by a TPCHD-certified septic company. Routine inspections. Between sales, the Health Department sends notices when a system is due: about every 3 years for simple systems such as gravity or pressure systems, and every year for complex ones such as aerobic treatment units and proprietary systems.
An inspection is not the same as a pumping. The inspection checks the tank, baffles, filters, lids and the drainfield area and is reported to the Health Department; pumping removes the solids. For a home sale you need both.
How it works
- Tell us about the jobA short form, about two minutes. Free and no obligation.
- We pass it to up to 3 local prosIndependent businesses that do this work in your area.
- Compare quotes and chooseHire one, or nobody. Your contract is with them, not with us.
What it costs
Typical public ranges, not quotes
Typical ranges from public sources, not quotes. Tank count and size, buried lids, distance and your system type change the price. Ask whether Health Department fees are included.
Tank pumping
- Typical range
- $427-682, avg about $554 (Angi, Seattle area)
- What changes the price
- Tank size and number, how full, digging to the lids, distance
Health Department filing fee (OnlineRME)
- Typical range
- $60 per pumping or evaluation report (TPCHD 2026)
- What changes the price
- Collected by the septic company on the Health Department's behalf
Report of System Status, home sale
- Typical range
- $480 RSS fee (TPCHD 2026), plus the inspection and pumping above
- What changes the price
- Second system on the same parcel $240; 90-day conditional RSS $600
Risers to bring lids to the surface
- Typical range
- quoted separately
- What changes the price
- Depth of the lids, number of tanks
Repairs found during inspection
- Typical range
- quoted separately
- What changes the price
- What failed; bigger repairs may need a designer and permit
Rough math for a typical one-tank home sale, using the ranges above: inspection + pumping + filing fee + RSS fee comes to somewhere around $1,200-1,600. That is an illustration from public numbers, not a quote; sale inspections can cost more than routine ones, and repairs are extra.
Income-qualified owners may get discounts on routine inspections, pumping, risers and minor repairs through the Health Department's financial assistance program. It does not cover home sale inspections. See tpchd.org.
How the job usually goes
- Book a certified septic company. For a sale, ask for a property sale inspection with pumping of all tanks. For a routine notice, an O&M inspection.
- Find the lids. Tanks are often buried. A record drawing (as-built) from the Health Department shows where they are; risers save digging next time.
- Inspection and pumping. The firm checks tanks, baffles, filters, lids and the drainfield area, pumps if needed, and files its report in the Health Department's OnlineRME system.
- For a sale: apply for the RSS. The owner (or an agent or septic company the owner authorizes) applies to TPCHD with the $480 fee. Inspections done up to 6 months before the application are accepted.
- Health Department visit and report. Staff check the drainfield and reserve area. Their goal is 10 business days, and they say it can't be rushed, so apply early. An RSS is valid for 12 months.
Local rules worth knowing
RSS before a sale. TPCHD's on-site sewage code says a real estate transaction for a property served by septic can't be completed without a Report of System Status, and it requires a current inspection and pumping of all tanks. Properties with a new system installed less than 6 months earlier are exempt. Source: TPCHD Environmental Health Code, Chapter 2, Section 34.
Problems found before closing. If a defect can't be fixed before the sale, the seller can submit a contract with a certified or licensed septic professional, and the Health Department may issue a 90-day conditional RSS; the buyer then must finish the work within 90 days of the sale. Source: TPCHD: selling your property.
Who may inspect. TPCHD says only a certified operation and maintenance (O&M) inspector should inspect your system, and publishes a list of certified septic service companies. Homeowner DIY inspections (a newer TPCHD program for some systems) can't be used for a sale. Sources: TPCHD FAQ, TPCHD DIY program.
Statewide rule from February 1, 2027. Washington's on-site sewage rule (WAC 246-272A-0270) adds a statewide requirement: beginning February 1, 2027, owners must get an inspection before a property transfer, by an inspector the local health officer authorizes. Pierce County already requires an RSS at sale; the Health Department hasn't yet posted how, if at all, its process will change. Sources: WAC 246-272A-0270, WA DOH rule revision.
Skipped inspections. If a required inspection isn't done, the Health Department says it may record a notice or certificate of non-compliance on the property title, which can complicate a sale. Source: TPCHD FAQ.
Before you hire: a short checklist
- Check the firm is on the TPCHD certified septic service company list (see the list).
- Say whether it's a property sale inspection or a routine one; a sale needs all tanks pumped.
- Ask what the inspection includes (baffles, filters, leak checks, uncovering lids, drainfield check) and what it doesn't.
- Ask whether the Health Department filing fee is in the price, and whether they'll submit the RSS application or only upload their report.
- Ask if digging to buried lids or installing risers is extra.
- Selling? Apply for the RSS early. It's valid 12 months, and review takes about 10 business days or more.
Questions
Do I need a septic inspection to sell my house in Pierce County?
Yes, if the home is on septic. Pierce County requires a Report of System Status (RSS) from the Tacoma-Pierce County Health Department before the sale closes. It starts with an inspection and pumping of all tanks by a certified septic company, then an RSS application and fee ($480 in 2026).
How long does the RSS take, and how long is it good for?
The Health Department's goal is to review an RSS application within 10 business days and says it can't be rushed. An RSS is valid for 12 months from the date issued, so you can apply before you have a buyer. Inspections done up to 6 months before you apply are accepted.
Who is allowed to inspect my septic system?
TPCHD says only a certified operation and maintenance (O&M) inspector should inspect your system, and it publishes a list of certified septic service companies for Pierce County. A homeowner DIY inspection can't be used for a sale.
How often does my system need a routine inspection?
TPCHD's schedule is about every 3 years for simple systems such as gravity or pressure systems, and every year for complex ones such as aerobic treatment units and proprietary systems. Some owner-occupied gravity systems away from the shoreline can qualify for every 5 years after a class. Follow the date on your Health Department notice.
Is pumping the same as an inspection?
No. Pumping removes the solids from the tank. An inspection checks the tank, baffles, filters, lids and drainfield area and is reported to the Health Department. Under the state rule, the tank is pumped when the inspection finds enough sludge and scum to need it; a home sale in Pierce County requires both.
What changes with the new Washington rule in 2027?
From February 1, 2027, the state on-site sewage rule requires an inspection before a property transfer statewide. Pierce County already requires an RSS at sale. How the Health Department aligns the two hadn't been published when this page was reviewed; check tpchd.org before you list.
I'm buying a home on septic. Can I see past reports?
Inspection and pumping reports filed by septic companies are searchable by address or parcel at onlineRME.com, and the Health Department keeps record drawings. Ask the seller for the RSS. You can also hire your own certified firm, with the seller's permission.
Are you a septic company or the Health Department?
No. We're a free referral service. We pass your request to up to 3 independent local firms, and you hire one of them, or none, directly. For rules about your own property, contact the Health Department.
Areas
Sources
- TPCHD: selling your property (Report of System Status)
- TPCHD: RSS process information (6-month inspection window, pumping of all tanks)
- TPCHD Environmental Health Code, Chapter 2 On-site Sewage (Section 34, RSS)
- TPCHD: septic O&M FAQ (frequency, certified inspectors, $250-350 cost)
- TPCHD: 2026 fee schedule (RSS $480, filing fee $60)
- TPCHD: reduced inspection frequency (5 years)
- WAC 246-272A-0270: owner responsibilities, incl. property transfer inspection from Feb 1, 2027
- WA DOH: on-site sewage rule revision and effective dates
- Angi: septic tank pumping cost in Seattle
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