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PSSAC Consultant's Directory

Many of PSSAC's members are private consultants. The following offer consulting services in their areas of specialization, and welcome inquiry by potential clients. Please click on their names to link to their individual pages for additional information including their certifications and areas of expertise. They are listed in alphabetical order:

 

Dariush Bakhtar, Ph.D.
EcoConsulting

11748 Luanda Street, Lake View Terrace, CA  91342
Phone:  (800) 291-7198, Fax:   (800) 291-7198, E-mail:  dbakhtar@EcoConsulting.com
Web Site: http://www.EcoConsulting.com

Glenn Borchardt, Ph.D.
Soil Tectonics

P.O. Box 5335, Berkeley, CA  94705-0335,  Phone:  (510) 654-1619, Cell:  (510) 205-4562, Fax: (530) 655-0018,  E-mail: gborchardt@gmail.com, Web Site:  http://www.soiltectonics.com

Denny M. Churchill
Consulting Soil Scientist

145 Cottonwood Ct. , Quincy, CA  95971
Phone:  (530) 283-1271,  E-mail:  dennychurchill@sbcglobal.net

Terry D. Cook
Soil Consultant

3214 Lillard Drive, Davis, CA 95616. Phone or Fax: (530) 753-1062
E-mail: soilconsult@aol.com

Sidney W. Davis
DAVIS² Consulting Earth Scientists

P.O. Box 734, Georgetown, CA 95634. Phone (530) 333-1405, Fax (530) 333-1009
E-mail: davis2consulting@sbcglobal.net Website: http://nscss.org/davis2.html

Nat B. Dellavalle
Dellavalle Laboratory, Inc.

1910 West McKinley Ave., #110, Fresno, CA 93728-1221. Phone: (559) 233-6129 or (800) 228-9896 (In California), Fax: (559) 268-8174
E-mail: ndellavalle@dellavallelab.com   Web Site:  http://www.dellavallelab.com

David B. Kelley
Kelley & Associates Environmental Sciences, Inc.

2655 Portage Bay East, Suite 11, Davis, CA  95616.  Phone: (530) 753-1232, Fax: (530)753-2935, E-mail:  dbkelley@jps.net

Jeff Peters
Questa Engineering Corporation

1220 Brickyard Cove Road, Point Richmond, CA  94807.  Phone: (510) 236-6114, Fax: (510) 236-2423, E-mail:  jpeters@questaec.com, Web Site:  http://www.questaec.com

Roger J. Poff
R.J. Poff & Associates

P.O. Box 2073, Nevada City, CA 95959. Phone (530) 273-1709, Fax: (530) 477-8319. E-mail: rogerpoff@comcast.net

Bryan L. Rahn
Coastal Viticultural Consultants

1575 Deer Park Road, Angwin, CA  94508.  Phone (707) 965-3700, Toll Free: (888) 799-7766, Fax: (707) 965-3737.  E-mail:  brahn@coastalvit.com Web Site: http://www.coastalvit.com

Roy J. Shlemon, Ph.D.
Roy J. Shlemon & Associates, Inc
.

P.O. Box 3066, Newport Beach, CA 92659-0620, Phone: 949-675-2696, Fax: 949-675-5088, E-mail: rshlemon@jps.net, Web site: http://www.geotool.com/shlemon.html

Philip Small
Land Profile, Inc.

P.O. Box 2175, Spokane, WA  99210,  Phone and Fax:   509-838-4496, E-mail: psmall2006@landprofile.com, Web site:  http://www.landprofile.com

 

consultantindex.htm updated March 1, 2008

 

    Dedicated to the education, application, and advancement of soil science in California.    
Outline of California map, with inset horizons of San Joaquin State Soil

Professional Soil Scientists Association of California
P.O. Box 5972
Vacaville, CA 95696
Phone: (707) 447-2135 Ext. 2
Email: info@pssac.org

Kim Chang building a San Joaquin State Soil monolith
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