BRANCH OFFICERS
President
Terry L. Foreman

CH2M HILL
805-371-7817 ext. 27
tforeman@ch2m.com
Vice President
Stephanie Osler Hastings

Hatch and Parent
805-963-7000, x 415
shastings@hatchparent.com
Secretary
William (Bill) O'Brien, PE

Applications International Corp. (SAIC)
805-966-0811 x 3208
obrienw@saic.com
Treasurer
Ryan Harding

Tetra Tech, Inc.
805-681-3100, x 114
ryan.harding@tetratech.com
President
Steve Phillips

USGS
6000 J Street, Placer Hall
Sacramento, CA 95819-6129
916-278-3002
sphillip@usgs.gov
Vice President
Pat Dunn

Jacobson Helgoth Consultants
718 Sutter Street, Suite 208
Folsom, CA 95630
916-985-3353
pfdunn@pacbell.net
Treasurer
David Von Aspern

GRA Branch Officer
3009 Funston Drive
916-920-0573
Sacramento, CA 95833
dvajet@aol.com
Secretary
Steve Lofholm

Golder Associates
1009 Enterprise Way, Suite 350
Roseville, CA 95678
916-786-2424
slofholm@golder.com
Member At Large
Harold Duke

CA-DTSC
8800 Cal Center Drive
Sacramento, CA 95826
916-255-3695
bduke@dtsc.ca.gov
Member At Large
John Ayres

CDM
2151 River Plaza Drive, Suite 200
Sacramento CA 95833
916-567-9900
ayresjw@cdm.com

President
Mary Morkin

Geomatrix Consultants, Inc.
2101 Webster Street, 12th Floor
Oakland, CA 94612
510-663-4100
morkin@geomatrix.com
Vice President
Bill Motzer

Todd Engineers
2200 Powell Street, Suite 225
Emeryville, CA 94608
510-595-2120
bmotzer@toddengineers.com
Secretary
Katrin Schliewen

LFR Levine-Fricke
1900 Powell Street, 12th Floor
510-652-4500
Emeryville, CA 94608
katrin.schliewen@lfr.com
Treasurer
David Abbott

Todd Engineers
2200 Powell Street, Suite 225
Emeryville, CA 94608
510-595-2120
dabbott@toddengineers.com
South Bay Coordinator
Mark Wheeler

Crawford Consulting
2 North First Street, 4th Floor
San Jose, CA 95113
Tel: 408-287-9934
mark@crawfordconsulting.com
Technical Advisory Member
Jim Ulrick

Ulrick & Associates
1400 Grand View Drive
Berkeley, CA 94705-1634
Tel: 510-848-3721
julrick@ulrick.com
Technical Advisory Member
Bryan Turner

Geomatrix Consultants, Inc.
2101 Webster Street, 12th Floor
510-663-4100
Oakland, CA 94612
bturner@geomatrix.com
President
Bill Pipes

Geomatrix Consultants, Inc.
2444 Main Street, Suite 215
Fresno, CA 93721
559-264-2535
wpipes@geomatrix.com
Vice President
Tom Haslebacher

Kern County Water Agency
2512 McCurdy Drive
Bakersfield, CA 93306
661-871-5244
thaslebacher@bak.rr.com
Secretary
Mary McClanahan

California Water Institute
5370 N. Chestnut Avenue
Fresno, CA 93740
559-278-8468
mmcclana@csufresno.edu
Treasurer
Chris Campbell

Baker Manock & Jensen
5260 North Palm, Suite 421
Fresno, CA 93704
559-432-5400
clc@bmj-law.com
Technical Advisory Member
Barbara Houghton

Geomatrix Consultants, Inc.
5000 California Avenue, Suite 201
Bakersfield, CA 93309
661-633-7600
bhoughton@geomatrix.com
Technical Advisory Member
Greg Issinghoff

RWQCB, Central Valley Region
1685 E Street
Fresno, CA 93706
559-488-4390
issinghoffg@r5f.swrcb.ca.gov
Technical Advisory Member
Bruce Myers

RWQCB, Central Valley Region
1685 E Street
Fresno, CA 93706
559-488-4397
myersb@rb5f.swrcb.ca.gov
President
Peter Murphy

Kennedy/Jenks Consultants
2151 Michelson Drive, Suite 100
Irvine, CA 92612
949-261-1577
petermurphy@kennedyjenks.com
Vice President
Darrell Thompson

Shaw Environmental
3347 Michelson Drive, Suite 200
Irvine, CA 92612-1692
949-660-7532
darrell.h.thompson@shawgrp.com

Treasurer
Bob Ruscitto

ARCADIS Geraghty & Miller, Inc.
10685 El Silbido Avenue
Fountain Valley, CA 92708
714-278-0992
rruscitto@arcadis-us.com
 
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