Sale inspection and O&M inspection are not a pump

A pump-out removes sludge and scum from the tank. An inspection evaluates whether the system is working — tank, baffles, drainfield, and, where they exist, pumps and alarms. Counties may also require a licensed designer for permits. Those are different jobs, sometimes different licenses.

EPA How to Care last updated 17 August 2026; EPA frequent questions last updated 11 March 2026; EPA Homebuyer’s Guide, August 2017. Clallam County O&M list printed 3 June 2026; Clallam system-status and inspection-summary pages retrieved 29 August 2026.

What EPA says an inspection checks

EPA frequent questions (Inspecting Septic Systems, 11 March 2026): inspections are not only for a real-estate transfer. “Septic system inspections should be done every 1 to 3 years for as long as you own your home.” In many states a system must be inspected when real estate transfers. EPA tells you to contact the local permitting authority for professional inspectors — EPA does not license them.

EPA’s August 2017 Homebuyer’s Guide: have the system inspected by a septic system service provider before you purchase a home. Inspections may be required by local or state government or by a mortgage lender. The inspector will check:

• pumping and maintenance records;
• age of the system;
• sludge levels and scum thickness;
• signs of leakage (low water in the tank) and backup (staining above the outlet pipe);
• integrity of the tank, inlet, and outlet pipes;
• the drainfield for signs of failure such as standing water;
• the distribution box, to see that drain lines receive equal flow;
• available records for local function and location rules.

EPA How to Care (servicing): the provider inspects for leaks and measures scum and sludge, then pumps when those layers hit the cutoffs on the when-to-pump page. Measuring layers can happen during an inspection visit; emptying the tank is the pump.

O&M inspection (ongoing)

EPA How to Care: inspect at least every three years; alternative systems with pumps or electrical parts generally once a year. Washington state rules that Clallam implements (WAC 246-272A, cited on the county pages): a traditional gravity system at least once every three years; alternative systems (those with pumps) every year.

Clallam’s O&M page describes a professional inspection that includes tank leaks, baffles and baffle screen, scum and sludge, color and odor, backup stains, and — for pressurized systems — pump tank, floats, effluent pump, electrical controls, alarms, and a pressure test, plus drainfield mushy spots and the distribution box. Findings are reported to Environmental Health as a system status report.

Some Clallam homeowners may inspect their own residential system after county training (Septics 201) if the county has a complete record on file. Proprietary devices, aerobic treatment units, biofilters, community/commercial systems, real-estate transfers, and government actions are called out as professional work. That is Clallam’s rule, not a national rule.

Sale / property-transfer inspection

EPA Homebuyer’s Guide: inspect before purchase; local government or a lender may require it. EPA frequent questions: in many states a system must be inspected with the transfer of real estate. EPA does not publish a 50-state mandate table; we do not invent one.

Clallam County (System Status Reports page): as of 1 June 2010, at property transfer the owner shall provide the buyer a copy of a current system status report performed within 12 months of the transfer by a licensed septic system designer or licensed OSS maintenance provider, on file with Environmental Health, plus any available maintenance records. The county says a system status report evaluates condition at the time of inspection and does not guarantee future performance.

Clallam also tells owners not to pump just before a system status report for a governmental action: a designer can tell more about how the system is functioning if the tank has not just been pumped.

When a designer is required (Clallam example)

The reverse of Clallam’s 2026 O&M PDF: only septic designers can perform inspections for food-service permit/annual permitting, building permits, boundary line adjustments, lot combinations, land divisions, and conditional use permits. The PDF lists local designers who offer those inspections and states the list is not inclusive of all Washington State licensed septic designers.

Clallam’s System Status Reports page: reports for governmental actions (building permits, land divisions or boundary line adjustments when an existing system is part of the proposal, conditional use, critical-areas compliance, food-service operating permits, commercial certificate of occupancy, change of use, and other actions the health officer deems appropriate) are inspections done by certified septic designers. Designers verify tank location, sludge and scum, working parts, drainfield function, and a reserve area if the as-built lacks one.

That split — licensed O&M provider for routine and many sale inspections; licensed designer for permit and land-use inspections — is what Clallam printed. Other counties write different rules. Ask yours. Clallam pumpers, O&M inspectors, and designers.