Butte County Certified Designer

On-Site Wastewater Treatment

Parks and Recreation Systems

Civil-Environmental Engineering

We custom design your system to fit your needs and circumstances, providing all plans, documents, and services for full agency approval and construction.

Design Types


Gravel Filled Trench

Gravity Flow (shown), or Pressure Dosed

Slope & Grade Survey

Determine initial location and layout

Compact Bed System

Gravelless (shown), or Gravel Filled

Soil Classification

Establish soil acceptability per
county regulations

Bottomless Sand Filter

Raised Bed (shown), or Recessed

Percolation Testing

Prove soil acceptance rate (system sizing)

Secondary Treatment System Textile (shown), or Peat Media

Groundwater Separation Certification

Wet season depth-to-water monitoring