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Septic Systems

At 509 Excavation, we specialize in residential excavation and have been installing On-Site Waste Systems for over 5 years in the Spokane area. We are now proud to expand our services to Lincoln and Stevens Counties. Whether you need new septic installation or repair, we’re here to help.  That's why we work alongside local engineers to design and install the perfect system for your residential property. With a septic system tailored to your soil, you can rest assured that our experts will provide you with reliable and efficient excavation services.  

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Trust 509 Excavation to handle your residential excavation needs. From on-site system installations to upgrades, our team has the expertise and knowledge to get the job done right. Check out the process we recommend for a smooth installation, and contact us today to get started!

Septic System

The Septic System Installation Process

Septic System Installation Process

Septic System

Types Of Septic Systems

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Septic System Control Boxes

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Septic System Tanks

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Filters

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Pumps

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