As-Built
Frequently Asked Questions
1) What is an “as-built” septic drawing?
It’s a record drawing that shows where the septic tank and drain field were installed and how the system is laid out.
2) Why do as-builts matter?
They help locate components for pumping, inspections, repairs, and home sales—especially when lids are buried or the layout is unclear.
3) Which county records should I check?
It depends on where the property is located—Snohomish, King, or Island County each have their own lookup process.
4) What if I can’t find my as-built online?
Some older properties don’t have easy online records, or the record may be incomplete. We can help with locating during service.
5) What information do I need to search?
An address usually works, but sometimes parcel number or owner name helps depending on the county tool.
6) Can an as-built tell me the tank size?
Often it will show approximate system details, but it varies by record and year.
7) Should I rely on the drawing 100%?
Use it as a strong starting point, but site conditions and changes over time can affect what’s actually there.
8) Can you help me interpret the drawing?
Yes—if you send it to us or have it available during service, we can help you understand what you’re looking at.



