Property Care Services

Septic Systems

Septic System

With over 30 years of experience, Property Care Services (PCS) has provided the residents and businesses of Northeastern Washington and surrounding areas with the very best Septic and Sewer systems design, installation and repair services. We specialize in residential and commercial Conventional Gravity, Complex Pressure Distribution, Mound Systems, Sand Filter Systems, and custom engineered septic systems. Our environmental-friendly staff can install a high-quality, Eco-Friendly, and environmentally safe system to meet your needs, and your project budget.

Septic System Design

We specialize in septic system designs, installations, repairs, and replacements. If you don’t have a septic system design, no problem. PCS will help assist you with the design of your septic system. Our staff work directly with high quality septic system designer and engineers. Our team of professionals will walk you through the design process which typically includes:
    • A Complete Site Evaluation and Analysis.
    • Septic System Perk Test Holes and Soil Analysis.
    • Septic System Tank and Drain Field New Installation , or Placement
    • Tank type and Size, Absorption System Size
    • Tank Retention Time, Drain Field type and Size
    • And much more…

Septic System Permits and Inspections

Our team of professionals work directly with the various county health department, and local jurisdictions in your area, to ensure and facilitate the permitting and inspection processes from the beginning to the completion of your project.

Septic System Primary Components

Septic Tank

The septic tank is designed to provide primary treatment of wastewater by capturing and restricting soil clogging constituents (such as solids, fats, oils, grease, etc.) from reaching the drainfield. The septic tank provides an environment whereby some of these constituents are further reduced by microbial decomposition. It is recommended the septic tank be pump out at least every 2 – 5 years.


The drainfield is comprised of a distribution device (distribution box or D-Box, pressure manifold) and one or more drainlines. Gravel and gravel-less trenches are available. Some gravel-less trenches allow for a 25% reduction in the overall drainline length when compared to a gravel drainline and, therefore, can reduce the size of the septic system drainfield.

Septic System Types

Conventional Gravity System

A conventional gravity system is the simplest form of an onsite wastewater system and requires at least 3 feet of native suitable soil beneath the drainfield. A gravity system consists of three parts: septic tank, drainfield, and soil under the drainfield. The system is sited to allow gravity to advance wastewater throughout the septic system. Conventional gravity systems are always the first choice due to their comparatively lower cost and minimum maintenance requirements. The drainfield can utilize almost any type of gravel or gravel-less drainline.
Pressure Distribution Septic System

Pressure Distribution System

Pressure distribution systems include a pump chamber that collects treated wastewater from the septic tank. The pump chamber contains a pump, and pump control on-off floats, or pump timer control panel. A pressure distribution system is typically used when the soil and site conditions require controlled dosing, and when there is less than 3 feet of native suitable soil below the drainfield. Pressure distribution systems are designed to create better distribution of wastewater over the extent of the drainfield.

Septic Mound System

The mound is a drainfield bed that is raised above the natural soil surface with a specific sand fill material, all covered by suitable cover soil. The Septic System pump sends wastewater to the mound drainfield bed in controlled doses for even distribution to the pipes. The wastewater leaves the pipes under low pressure through the small holes in the pipes and trickles downward through the gravel and into the special sand fill. The wastewater is treated as it moves through the sand and into the natural soil.
Septic Tank Mound System
Septic System Sand Filter

Sand Filter Septic System

A typical sand filter is a PVC-lined or concrete box filled with specific sand material. A network of small diameter pipes is placed in a gravel-filled or gravelless chamber bed on top of the sand. The pump sends wastewater to the sand filter box in controlled doses. The wastewater leaves the pipes, trickles downward through the gravel, and is treated as it filters through the sand. A gravelled underdrain collects and moves the treated wastewater to either a second pump chamber to a pressure distribution drainfield or a gravity flow drainfield
Custom Engineered and Other Types of Septic Systems – PCS also Installs, Maintains and Repairs most all types of custom engineered septic systems – Contact and Connect with us to Learn More.
Sewer Lines – PCS also Installs, Maintains and Repairs most all common types of sewer line and sewer line connections – Contact and Connect with us to Learn More.
Our experts are prepared to fully install and maintain the perfect septic system for your residence or business. We are located in the beautiful Colville, Washington area, and we provide services for Stevens, Ferry, Pend Oreille, and Spokane counties. From site prep for a brand-new system or project to repairs, you can rely on our team for quality septic system installation, septic system repairs, or sewer line installation and repairs, throughout Northeastern Washington.

Our High-Quality Septic Systems - Projects Gallery

Septic Systems Resources

Washington State Department of Health

Northeast Tri County Health District (Serving – Stevens, Ferry, and Pend Oreille Counties)

Spokane Regional Health District (Serving – Spokane County)