Routine septic inspections help identify problems early, keep your septic system running properly, and meet inspection requirements set by state and local health authorities. Depending on your septic system and where you live, your local health department may send a notice that an inspection is due.
If you received one of those notices—or it’s been a while since your system was checked—Flow-Rite Septic Solutions can help. Our team provides septic inspection services for homeowners throughout Pierce, Thurston, and surrounding counties.
A routine inspection is about more than checking a box. It gives you a chance to catch maintenance needs, damaged components, pump problems, drainfield concerns, and other issues before they become more expensive septic problems.
Why Did I Receive a Septic Inspection Notice?
If you received a letter or reminder from your local health department, it generally means your septic system is due for a routine inspection or Operation and Maintenance (O&M) inspection.
Washington requires septic systems to be inspected regularly, while local health departments administer inspection programs and track compliance. Your particular inspection schedule can depend on your system type, location, county requirements, and whether your property participates in a special inspection program.
For that reason, the due date your local health department lists is important. If you are unsure what type of septic system you have or why the inspection is required, your county’s septic records can often provide more information.
What Does a Routine Septic Inspection Consist Of?
A septic inspection is not the same thing as having your septic tank pumped.
During a routine inspection, the inspector evaluates the septic system and its accessible components to determine how it’s functioning and whether maintenance or repairs are needed.
The inspection may include:
- The septic tank itself. The inspector checks liquid levels, the amount of scum and sludge in the tank, visible structural conditions, baffles, filters, and whether pumping is needed.
- The drainfield. The inspector examines the drainfield area for warning signs such as surfacing sewage, standing water, unusually wet soil, damage, or other conditions that could affect system function. The inspector may also check monitoring ports when available.
- Pump tanks and controls. Systems with pumps may require inspection of liquid and sludge levels, the condition of the pump tank, and applicable pumps, floats, controls, alarms, and electrical components.
- Sand filters and other treatment components. When a system includes additional treatment components, the inspector may evaluate them based on the system’s design and applicable maintenance requirements.
- Access ports, lids, and risers. The inspector checks accessible lids, risers, and access points to make sure they are secure and in acceptable condition.
- Other system components. Depending on the septic system, an inspection may also include effluent filters, distribution boxes, proprietary treatment equipment, or other components.
We may also review available septic records to better understand the type of system installed, how it was designed, and its previous inspection or maintenance history.
Overall, the purpose is to determine whether the septic system is functioning as intended and identify anything that may need maintenance, pumping, further evaluation, or septic repair.
Does a Septic Tank Have to Be Pumped During an Inspection?
Not necessarily.
Routine septic inspection and septic pumping are two different services. An inspection assesses the system’s condition and measures the amount of accumulated scum and sludge. Pumping physically removes those materials from the septic tank.
For a routine inspection, pumping may be recommended when the measured solids indicate that the tank needs to be pumped. Still, an inspection itself does not automatically mean the tank needs to be emptied.
Many household septic tanks are pumped approximately every three to five years. However, the appropriate schedule depends on factors such as household size, tank capacity, wastewater use, and how quickly solids accumulate.
Property-sale requirements are different. Pierce and Thurston Counties have additional septic inspection and pumping requirements associated with property transfers. If you are selling a home, schedule the appropriate inspection rather than assuming a routine O&M inspection alone satisfies the sale requirements.
How Often Does a Septic System Need to Be Inspected?
No single inspection schedule applies to every septic system in Pierce and Thurston Counties.
Washington law establishes ongoing inspection requirements, while local health departments administer those requirements and may have additional programs based on the type of system and property.
Pierce County
- Annual inspections for complex systems.
- Inspections every three years for simple systems such as gravity or pressure systems.
Pierce County also has programs that may change how qualifying homeowners satisfy these requirements. Certain eligible gravity or pump-to-gravity systems may qualify to move from a three-year inspection schedule to a five-year inspection schedule.
Pierce County also introduced a do-it-yourself inspection program for certain qualifying gravity systems. Homeowners must meet county eligibility and training requirements, and professional inspections are still required at specified intervals and for property-sale inspections.
Thurston County
Thurston County inspection requirements also depend on the septic system and property. Certain systems and properties require renewable Operational Certificates, and homeowners may receive renewal notices telling them what inspection, pumping, monitoring, sampling, or other steps are required.
Some qualifying Thurston County homeowners may become certified to perform their own inspections on eligible systems. Beginning in 2026, certified homeowner self-inspectors must also have a Thurston County-certified septic professional perform a satisfactory inspection at least once every nine years.
The easiest way to determine your actual inspection deadline is to review the notice you received or check your septic records with the appropriate county health department.
Why Are Routine Septic Inspections Important?
There are two major reasons to stay current with septic inspections: compliance and prevention.
First, your county may track whether you’ve completed required inspections.
In Pierce County, failing to complete a required inspection can eventually result in an alert or a certificate of non-compliance being recorded against the property. That can create complications when you later want to sell, refinance, or develop the property.
Thurston County uses a different process for systems requiring an Operational Certificate. Homeowners receive reminder notices when requirements are overdue, and an Operational Certificate can eventually become non-conforming if the required steps are not completed.
Either way, ignoring an inspection notice usually does not make the requirement disappear.
Second, routine inspections can reveal problems before they develop into septic emergencies.
A small maintenance issue may be much easier to address than a failed pump, sewage backup, damaged tank, or failing drainfield. Regular inspections give a septic professional a chance to spot warning signs and recommend the right next step.
Problems a Septic Inspector May Find
A thorough septic inspection may identify issues such as:
- Broken, damaged, or disconnected piping.
- Excessive sludge or scum accumulation.
- Damaged or deteriorated tank components.
- Cracked, unsecured, or unsafe lids.
- Malfunctioning pumps or controls.
- Failed floats or alarms.
- Clogged or damaged filters.
- Standing or surfacing sewage around the drainfield.
- Ponding in monitoring ports.
- Drainage conditions affecting the septic area.
- Components that are not functioning as intended.
Some deficiencies can be addressed through maintenance or relatively minor repairs. Other findings may require additional troubleshooting, pumping, repair work, or evaluation of the drainfield.
If a required inspection identifies deficiencies, the county reports the findings through the applicable process. The time allowed to correct the issue can depend on what was found and how serious the problem is.
What Happens After the Routine Inspection?
After a professional routine inspection, the company documents the findings and submits them as required by the local jurisdiction.
In Pierce County, septic service companies submit routine inspection reports electronically through OnlineRME. The Tacoma-Pierce County Health Department updates its records and can notify the homeowner if additional work is required.
Thurston County also uses OnlineRME for septic inspection reporting. A certified septic professional—or an eligible certified homeowner completing an approved self-inspection—submits the inspection report through the system.
If everything is functioning properly, the homeowner can continue with regular septic maintenance until the next required inspection.
If something needs attention, the inspection gives you a clear starting point for deciding whether the next step is pumping, maintenance, repair, or further evaluation.
Don't Wait for a Septic Problem to Get Worse
A septic system can appear to be working normally even when maintenance needs are developing underground. By the time wastewater backs up into the home or surfaces over the drainfield, the problem may already be significant.
Regular septic inspections are one of the simplest ways to stay ahead of problems and track how your system is performing.
If you received an inspection reminder, are overdue for routine maintenance, or want to understand your septic system’s condition, contact Flow-Rite Septic Solutions.
Our experienced team provides septic services throughout Pierce, Thurston, and surrounding counties and can help you determine the appropriate next step for your system.
Flow-Rite Septic Solutions has the experience needed to handle tough jobs that other plumbers can't. When you need advice for informed decision-making about sewer or septic, you can count on Flow-Rite Septic Solution’s experts.
Frequently Asked Questions About Routine Septic Inspections
Your local health department may have a record drawing or other documents identifying the type of septic system installed on your property. Records can show whether you have a gravity, pressure, mound, sand filter, or another type of system. If you are unsure, a septic professional can also help you understand the system components present on the property.
Financial assistance may be available depending on where you live and whether you qualify. In Pierce County, qualifying low-income homeowners in certain eligible areas may receive assistance toward routine inspections, pumping, riser installation, and minor repairs. Pierce County may also offer short-term inspection extensions in some circumstances.
Thurston County also has limited financial-assistance programs for qualifying homeowners in certain designated areas. Eligibility, funding, and program availability can change, so homeowners should confirm current assistance directly with their county.
Warning signs include **sewage backing up into toilets or sinks, gurgling plumbing, slow drains, septic alarms, sewage odors, standing water, unusually wet soil, or sewage surfacing **near the drainfield. You should also schedule an inspection when one is required, even if the system appears to be working normally.
If you are seeing active signs of septic trouble, don't wait for your normal inspection date to have the problem evaluated.
Many household septic tanks are pumped approximately every three to five years, but pumping should ultimately be based on the tank's condition and the amount of accumulated solids and scum. Household size, tank size, water use, and system characteristics can all affect how quickly pumping becomes necessary.
An inspector can measure the accumulation in the tank and tell you whether septic pumping is recommended.
A routine inspection generally evaluates the septic tank, sludge and scum levels, lids and access points, drainfield area, filters, baffles, and other accessible system components. Systems with pumps or specialized treatment components may require additional checks. The exact inspection depends on the septic system design and local requirements.
No. An inspection evaluates the septic system's condition and operation, while pumping removes accumulated wastewater, sludge, and scum from the tank. An inspector may recommend pumping based on what they find, but pumping isn't automatically required with every routine inspection.
For a professional routine inspection, the septic service company generally submits the required inspection report electronically through OnlineRME in both Pierce and Thurston Counties. Homeowners participating in an approved county self-inspection program follow the reporting process established by their county.
Possibly, but you cannot simply perform your own inspection and assume it satisfies county requirements. Pierce and Thurston Counties both have specific self-inspection programs for certain qualifying homeowners and systems.
These programs require eligibility, training, certification, and compliance with county procedures. Professional inspections are still required in certain circumstances.
What happens next depends on the problem. Some findings may call for pumping, cleaning a filter, repairing a lid, servicing a pump, or another relatively minor correction. More significant concerns may require troubleshooting, permitted septic repairs, or further evaluation.
The key is to address the deficiency rather than let it become a larger system problem.
