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Septic System Inspection Reminder Pilot
Public Health is sending notifications to homeowners with new proprietary septic systems during the first two 2 years after installation to remind you to get your system inspected. We’re focused on newly installed proprietary systems because they are more complex than conventional septic systems and need regular inspections to ensure they work correctly.
State and local regulations require proprietary septic systems to be inspected four times during the first two years after installation—about once every six months. This schedule also matches the manufacturers’ recommended inspection frequency and helps ensure your system remains eligible for warranty coverage. Inspections help identify warranty-covered problems before the period ends.
The goal of the reminders is to help septic system owners:
- Stay on schedule with inspections.
- Catch issues while the manufacturer's warranty is in effect.
- Identify potential problems early before they become expensive repairs.
- Build good maintenance habits to protect the investment.
Steps after you get a reminder
When you get an inspection reminder from Public Health:
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Contact your maintenance provider
If you don't know who your maintenance provider is, check your as-built for the operations and maintenance contract, contact your installer, or call Public Health’s Septic Program at 206-477-8050.
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Schedule your inspection
Consider asking your maintenance provider if you can schedule your upcoming inspections in advance so you don't have to remember each one.
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Keep copies
Keep a copy of your inspection and maintenance records.
For more information about the program, see Septic System Inspection Reminder Pilot (428 KB).
Why inspections are important
Proprietary treatment systems are complex. They may include pumps, aerators, floats, timers, control panels, and other mechanical or electrical components that require regular inspection.
The first two years are especially important because they provide an opportunity to identify problems while your manufacturer's warranty is in effect and to become familiar with how your system operates.
Regular inspections:
- Catch problems early
- Identify issues while still under manufacturer warranty
- Keep your system operating as designed
- Reduce the risk of costly repairs
- Extend the life of your septic system
Frequently Asked Questions
Yes. Washington State Department of Health requires proprietary treatment systems to be inspected four times during the first two years following installation. These inspections are also recommended by the manufacturer and in some cases may be required to keep the warranty.
Additional applicable requirements: Washington State (WAC 246-272A-0270) and King County (BOH Title 13, Table 13.60-1).
Inspection and maintenance costs depend on your system, maintenance provider, and the terms of your manufacturer's service policy or warranty.
Contact your maintenance provider with questions about inspection costs and what is included in your service agreement.
Financial resources: maintenance rebate.
Yes. Public Health will send reminders, but you need to schedule the inspection. Ask about scheduling them all up front so you won’t have to think about it.
Talk to your maintenance provider. Routine inspections are intended to identify problems early so they can be addressed before they become more serious.
If a component is defective and covered by the manufacturer's warranty, it may be repaired or replaced according to the warranty terms.