Washington requires an inspection when a property on septic changes hands. In Tacoma that means a Report of System Status, usually shortened to RSS, issued by the Tacoma-Pierce County Health Department. It is an inspection with all tanks pumped, followed by the department's sign-off. An RSS is valid for one year and cannot be renewed, so it is worth booking against your actual closing date rather than doing it well in advance.
We are a certified operation-and-maintenance firm in both King and Pierce County, so an inspection we carry out in Tacoma is one that can be filed. If it finds a problem, the technician who found it will set out your options and what each one costs before you decide anything, which is the part that matters when there is a closing date attached.
Sale inspections are filed with the county health department, so the record for Tacoma is close to a complete count rather than a sample. Between 2015 and 2025, 4,184 sale inspections were filed here and 20.1% of them found a problem. Across Pierce County, 15.0% of sale inspections filed between 2015 and 2025 found a problem. That puts Tacoma higher than the county as a whole.
| Sale inspections in Tacoma, 2015 to 2025 | Figure |
|---|---|
| Sale inspections filed | 4,184 |
| Found a problem | 20.1% |
| Could not be completed | 8.0% |
The second figure is about access rather than condition. 8.0% of sale inspections in Tacoma could not be completed, because a lid, a tank or part of the drainfield could not be reached and had to be recorded as not evaluated. That is low by regional standards, but it is still worth avoiding: across both counties, inspections that cannot see everything fail more than twice as often as ones that can.
Having the lids located and exposed before the inspector arrives is the simplest way to make sure the report reflects your whole system.
The single most useful thing a seller can do is book early. Of sale inspections that failed across the two counties, about a third were resolved within 30 days and the median took around eight weeks, which is longer than most closing windows. A problem found before you list is a repair. The same problem found once you are under contract is a negotiation, and sometimes a collapsed sale.
Call (253) 364-7416 to book a sale inspection in Tacoma, or to ask which report your address needs.
The full regional picture, including how long a failed inspection holds up a sale and which towns fare worst, is on our property sale inspections and RSS filings page. For everything else we do in Tacoma, see our Tacoma page.
A Tacoma tank that had gone a long time without being pumped. The customer had opened the first compartment; we excavated the second to reach the whole tank, crust busted through a heavy build-up of solids, and pumped approximately 1,125 gallons — a job that took considerably longer than usual because of the condition inside.
A Tacoma homeowner's septic alarm went off, so we came out to troubleshoot it. The alarm turned out to be working exactly as intended — it had detected a full tank — and the visit became a straightforward pump-out.
Our crew recently completed a septic system repair project for a homeowner in Tacoma, WA after an inspection uncovered significant deterioration inside one of the concrete septic tanks. Once the system was exposed, we found multiple areas where the concrete had begun to break down, including holes and cracks that could allow wastewater to leak […]
This homeowner was experiencing septic system issues, so our crew dug down to expose the tank and inspect the system. After opening the access point, we found a damaged sump pump discharge line that was preventing the system from operating properly. Once the problem was identified, we removed the broken section of pipe, installed a […]
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