CONTACTS 		OFFICE LOCATION  
 

  • John Youngdahl, P.E.
    President
    916.933.0633 Ext. 3006
     Contact

  • Diana Alegria
    Human Resources
    916.933.0633 Ext. 3002
     Contact

  • John Youngdahl, P.E.
    Geotechnical Department Head
    916.933.0633 Ext. 3006
    Contact

  • Martha McDonnell, P.E.
    Materials Testing Department Head
    916.933.0633 Ext. 3005
    Contact

  • Brian McCormick
    Laboratory Manager
    916.933.0633 Ext. 3011
    Contact

  • David Sederquist, C.E.G., CH.G.
    Geoscience Department Head
    916.933.0633 Ext. 3017
    Contact

  • Scott Youngdahl
    Graphics Department Head
    916.933.0633 Ext. 3039
    Contact

 

El Dorado Hills
1234 Glenhaven Court
El Dorado Hills, CA 95762
PH 916.933.0633
FX 916.933.6482