
SolTerra Engineering, inc.
Certifications
Laboratory Certifications
The SolTerra Engineering laboratory in Lander is an AASHTO Resource accredited (AMRL). The following is a list of our company accreditations— we are continually adding new accreditations to our repertoire, and have been accredited in many of these categories over the past ten years.
QUALITY MANAGEMENT SYSTEMS
- R18
- D3666
- E329
Asphalt Mixtures
R35, R47, R68, T30, T166, T209, T245, T269, T283, T269, T283, T308, T312, D2041, D2726, D3203, D4867, D5444, D6307, D6925, D6926, D6927
SOIL
T89, T90, T99, T100, T180, 698, D1557, 4318
AGGREGATE
R76, T11, T19, T21, T27, T84, T85, T104, T112, T176, T255, T304, T335, C29, C40, C88, C117, C127, C128, C136, C142, C566, C702, C1252, D2419, D4791, D5821
Staff Certifications
Licensed professional engineers manage projects and provide oversight to the materials labs and the key technicians performing the testing and inspection. Our technicians performing the testing are certified by NRC, ACI, and AASHTO in the areas of soil, concrete, and asphalt.
Meet the team who makes it happen at our Team page.

Jacob Miller, EI
President
ACI
American Concrete Institute (ACI) Concrete Construction Special Inspector
ACI
American Concrete Institute (ACI) Field Testing Technician
NRC
Nuclear Regulatory Commission (NRC) Nuclear Density Gauge Certified
WYDOT
Wyoming Department of Transportation (WYDOT) – Aggregate Technician #3913

Jessica Klein, PE
VP of Engineering
State of Wyoming Professional Engineer
Professional Engineer #14287 – Civil/Geotechnical
ACI
American Concrete Institute (ACI) Associate Concrete Construction Special Inspector
ACI
American Concrete Institute (ACI) Aggregate Testing Technician
ACI
American Concrete Institute (ACI) Field Testing Technician
ACI
American Concrete Institute (ACI) Concrete Laboratory Testing Technician
ACI
American Concrete Institute (ACI) Concrete Strength Testing Technician
Asphalt Institute
Mix Design Technology Certification
HAZWOPER
Hazardous Waste & Operation & Emergency Response (HAZWOPER)
SWPPP
Qualified Compliance Inspector of Stormwater- #A11A2D3F
SWPPP
Qualified Preparer of Stormwater Pollution Prevention Plans – #A11A2D3F
NRC
Nuclear Regulatory Commission (NRC) Nuclear Density Gauge Certified

Andrew Steen
VP of Operations
ACI
American Concrete Institute (ACI) Concrete Construction Special Inspector
ACI
American Concrete Institute (ACI) Aggregate Testing Technician
ACI
American Concrete Institute (ACI) Field Testing Technician
ACI
American Concrete Institute (ACI) Laboratory Testing Technician
ACI
American Concrete Institute (ACI) Concrete Laboratory Testing Technician
ACI
American Concrete Institute (ACI) Strength Testing Technician
ICC
International Code Council Reinforced Concrete Special Inspector
ICC
International Code Council Structural Masonry Special Inspector
NRC
Nuclear Regulatory Commission (NRC) Nuclear Density Gauge Certified
WYDOT
Wyoming Department of Transportation (WYDOT) – Soils, Aggregate, and Asphalt Technician #6071

Taylor Beck
Laboratory Manager
ACI
American Concrete Institute (ACI) Aggregate Testing Technician
ACI
American Concrete Institute (ACI) Field Testing Technician
ACI
American Concrete Institute (ACI) Laboratory Testing Technician
ACI
American Concrete Institute (ACI) Concrete Laboratory Testing Technician
ACI
American Concrete Institute (ACI) Strength Testing Technician
NRC
Nuclear Regulatory Commission (NRC) Nuclear Density Gauge Certified
WYDOT
Wyoming Department of Transportation (WYDOT) – Soils, Aggregate, and Asphalt Technician #9856