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We suspended most in-person services. Read our blog post.

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Have a Septic System?

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Keep it in good working order.

We help you maintain your septic system. We provide:

  • Information about your septic system type.
  • Your septic system's risk level.
  • Inspection deadline reminders.

A well maintained septic system:

  • Reduces pollution of drinking water, lakes, rivers and Puget Sound.
  • Keeps you, your family and pets healthy.
  • Extends the life of your septic system.
  • Saves you money.

Experiencing problems?

  • Foul odors inside or outside your house.
  • Gurgling sounds in the plumbing.
  • Sewage on the ground.
  • Sewage backing up into your house.

Step 1: Contact a certified O&M Firm to determine the cause of the problem.

Step 2: A certified septic professional can help with minor repairs. If you need a designer or installer, you must get a health department permit.


Contact us at or (253) 798-4788.


Property Owners

Videos: Understanding and maintaining your system

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