Welcome to Ever Green Septic Design Inc. (EGSD)!

EGSD is dedicated to providing quality, individualized service to all of our customers.  Whether you need a septic design for your dream house, have a large commercial project where public sewer is not available, require multiple perc approvals for a rural subdivision, have a failed septic system needing re-designed or a feasibility study on a property prior to purchase, we can help!
 
Over the past few years, many of our customers in Clark County WA have also been needing soils testing for stormwater design and geohazard/slope assessment reports for steeper slopes on their property.  Oftentimes this work is required when a septic or building permit application is submitted.  Listening to the needs of our clients, we have been expanding our scope of services to include some of this work.  Oftentimes we're able to complete multiple parts of your project consulting, design and soils testing needs, saving you from dealing with multiple consultants.  This can save you time and money!  Once we have a good feel for your project, we'll let you know what portions we can help with.  If a different consultant would be a better fit, we'll also refer you to a proven industry partner who will take good care of you. 

Our Areas of Expertise:​
​Our work can be divided into three main categories.  Click to learn more about these specific areas:

Residential Commercial Stormwater

The Services We Provide Include:

• Soil & site evaluations (perc tests)
• Site feasibility studies (soil evaluation for septic purposes)
• Septic design/engineering
• Construction oversight and inspections
• Infiltration testing and soil reports for stormwater permitting
• Geohazard/Slope Assessment reports 
  

​Our Service Area:
Our primary service area is Clark County and Skamania County WA (Battle Ground, Ridgefield, LeCenter, Woodland, Amboy, Yacolt, Camas, Washougal, North Bonneville, Stevenson, Cougar).  For larger projects, we will travel across the state, but smaller/residential projects are more economical to hire someone local.

​If you have any questions, feel free to contact us!

 Very knowledgeable engineers. I saved a ton of money and got a better system than what was previously recommended. Courteous folks to work with from the first phone call until completion. True professionals. Very highly recommended.
Geary Ferguson

We are Active Members of:

WOSSA and NOWRA are professional organizations representing septic engineers, installers, operations and maintenance providers, users and regulators striving to promote safe, reliable and cost effective ways of treating on-site wastewater.​