“For over 30 years we have used 3TA services. We are very satisfied with their high caliber engineering and land surveying services as reflected in Brookside Park, a new residential and commercial development in North Pole Alaska.”    ~ Jerry Koerner

Civil Engineering

3-Tier Alaska has been designing, inspecting and testing Onsite Wastewater Systems for over 30 years in both the residential and commercial markets.  From your typical single-family onsite septic system, to more complex multi-family or commercial wastewater systems requiring ADEC Engineering Support & Plan Reviews, we have done it all.  With two licensed Professional Engineers on staff and more than 50 years of combined Wastewater Engineering experience, we have the deep domain expertise and experience to help you solve any of your onsite wastewater issues.

 septic system grinder pump

Septic System Design
and Testing

more info
 road design and inspection

Road Design
and Inspection

more info
soil analysis and testing

Soil Analysis
and Testing

more info

“For over 30 years we have used 3TA services. We are very satisfied with their high caliber engineering and land surveying services as reflected in Brookside Park, a new residential and commercial development in North Pole Alaska.”    ~ Jerry Koerner