Board Members

2024 Western Chapter Board of Directors

Matthew Renaud, CPESC, CESSWI, QISP, QSD/P, ToR
NV5 Senior Consultant, Water Resources
3777 Long Beach Boulevard,
Annex Building Long Beach, CA 90807


(201) 240-4319 cell
Email me.

Term Expires: 2026

Jeanne Duarte, QSD, QSP, ToR, CPSWQ, CPESC, CISEC, President/CEO
Storm Water Resources LLC
25115 Avenue Stanford
Suite B225
Valencia, CA 91355


(661) 510-3428
Email me.

Term Expires:2024

Melanie Sotelo, CPMSM
CASC Engineering and Consulting, Inc.
1470 E. Cooley Drive Colton,
CA 92324

Administrative Vice President

Ph. (909) 783-0101 x1600
Cell (909) 835-0313
Email me.

Term Expires:2024

Daniel Reynaga, CPESC, QSD
Western Regional Sales Manager
Profile Products LLC.
Cardiff by the Sea, CA

Technical Vice President

(760) 330-1848
Email me.

Term Expires:2024

Reign Source
21913 Long Trot Drive
Escondido, CA 92029


Cell: (619) 339-4107
Email me.

Term Expires:2025

Stephen Knutson, CEO
Stover Seed
P.O. Box 1579
Sun Valley, CA 91353


Ph. 800-621-0315 or (213) 626-9668 
Cell (213) 626-3182
Email me.

Term Expires:2025

John Oldenburger lll, MSCE, P.E.
Geos EC West 
Rocklin, CA


Cell 916-250-7816 
Email me.

Term Expires:2025

Blanca Hoffmeier, QSD/QSP
President at SWPPP CAL
3205 Old Conejo Road, Suite 200
Thousand Oaks, CA 91320


(805) 990-2203
cell (805) 990-2203
Email me.

Term Expires:2026

Shanna Delgado GIT, CESSWI, QSP
Environmental Scientist
CASC Engineering and Consulting
1470 E. Cooley Drive, Colton, CA 92324


Ph. 909.783.0101 x1660
Cell 909.583.7085M
Email me.

Term Expires:2026


Cyndi Brinkhurst
Western Chapter IECA
P.O Box 474
Cedar Ridge, CA 95924

Administrative Assistant
530 320-9631

WCIECA State Representatives

Mark Howland
Kakuka, HI

HI State Representative
(808) 294-9254
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Ken Kristoffersen
Rancho Santa Margarita, CA

S. CA State Representative
(949) 351-1547
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Erika Sagrafena
Half Moon Bay, CA

N. CA State Representative
(650) 459-0553
(650) 722-2735 cell
Email me.

Dennis Richards
Chandler, AZ

AZ State Representative
(602) 214-8857
Email me.

Claudia Chambers
Reno, NV

NV State Representative
(775) 741-8875
Email me.