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PROJECTS / GALLERY

On site.
From the ground up.

A closer look at On-Site’s septic installations, excavation, drainage, and site preparation.

OUR WORK

Details below ground.
Progress you can see.

From tank placement to the finished grade. Select any photo to view the full image.

Three rows of drain field chambers connected to a white pipe manifold — Drain field installation
Chamber rows and distribution piping before backfill.

Green septic treatment equipment and access risers during installation — Septic treatment equipment
Treatment units and access risers during installation.

Septic tank, treatment unit, and drain field under construction beside a home — The complete system
Tank, treatment equipment, and drain field taking shape on one property.

White pipe laid in a trench beside a home with an excavator at the far end — Pipe installation
A carefully excavated route alongside an existing home.

Water spraying from a distribution pipe grid during a field test — Distribution testing
Checking the pipe network before the next stage of installation.

Concrete septic tank with a green access riser beside a woodland home — Tank placement
A concrete septic tank and service access at a wooded property.

Excavated building site with stepped earthwork and a compact excavator — Building site excavation
Preparing the ground and elevations for a new structure.

Prepared gravel pad within concrete foundation walls — Foundation preparation
Aggregate placed within the building footprint.

Drainage pipe, gravel, and fabric alongside a concrete foundation — Foundation drainage
Pipe and drainage materials placed along the foundation.

Graded ground around a cabin at a wooded property — Site grading
Ground preparation around a structure among established trees.

On-Site branded dump truck and excavator at an earthwork site — Equipment on site
The On-Site dump truck and excavator ready for earthwork.

Takeuchi excavator beside the On-Site Septic and Excavation dump truck — Excavation in progress
Working through rocky ground with the excavator and truck.

YOUR NEXT PROJECT STARTS HERE

Let’s build something
that works.

Tell us about your project Or call (503) 362-7000