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Office Locations

GLA has more than 300 employees located in 27 offices in the U.S. and abroad.

GLA office locations

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    GLA HEADQUARTERS

    2777 East Guasti Road, Suite 1
    Ontario, CA 91761

    (909) 626‐2282

      Mike Reason, PG, CHG
    Southern California Operating Unit Manager

    ARIZONA


    Scottsdale (Phoenix)

    8777 N. Gainey Center Drive, Suite 250
    Scottsdale, AZ 85258

    (480) 659-7131

    Geno Mammini, RG (Clear Creek Associates)
    Principal Hydrogeologist

    Doug Junk (GLA)
    Senior Project Manager / Solid Waste Market Sector Leader


    Tucson (Clear Creek Associates)

    221 N. Court Avenue, Suite 101
    Tucson, AZ 85701

    (520) 622-3222

    Jamie Kennealy, RG
    Senior Hydrogeologist / Tucson Branch Manager

    CALIFORNIA

    Anaheim

    3921-A East LaPalma Avenue
    Anaheim, CA 92807

    (714) 630‐5855

    John Hower, PG, CEG
    Senior Vice President Operations / Anaheim Branch Manager


    Grass Valley

    143E Spring Hill Drive
    Grass Valley, CA 95945

    (530) 272‐2448

    Mark Bittner, PG
    Senior Geologist / Northern California Operational Unit Manager

    (530) 272‐2448


    Grass Valley Laboratory

    Philip Plant
    Grass Valley Laboratory Manager

    (530) 575-7917


    Granite Bay (Sacramento)

    4190 Douglas Boulevard, Suite 250
    Granite Bay, CA 95746

    (916) 771-7904

    John Hower, PG, CEG
    Senior Vice President Operations / Northern California Operating Unit Manager


    San Jose

    6300 San Ignacio Avenue, Suite A
    San Jose, CA 95119

    (408) 778‐2818

    Beeson Liang, PE, GE
    Principal Geotechnical Engineer / San Jose Branch Manager


    Costa Mesa

    3150 Bristol Street, Suite 210
    Costa Mesa, CA 92626

    (657) 218-4708

    Neven Matasovic, Ph.D., PE, GE (GLA)
    Principal Geotechnical Engineer / Geotechnical Unit Manager

    John J. Dodge, PG, CHG (Daniel B. Stephens & Associates)
    Principal Hydrogeologist

     

    Riverside

    21760 Van Buren Boulevard, Suite 104
    Riverside, CA 92508

    (909) 383‐8729

    Stacy Baird
    Vice President – CQA/Field Services Unit Manager


    San Diego

    11415 West Bernardo Court, Suite 200
    San Diego, CA 92127

    (858) 451‐1136

    Mark Bittner, PG
    Senior Geologist / San Diego Branch Manager


    Petaluma (RMC Geoscience)

    775 Baywood Drive, Suite 305
    Petaluma, CA 94954

    (707) 658-7088

    Rick Mitchell, PG, CEG
    Principal Engineering Geologist / Northern California Unit Manager


    Santa Barbara (Daniel B. Stephens & Associates)

    3916 State Street, Garden Suite 1A
    Santa Barbara, CA 93105

    (805) 683-2409

    Tony Morgan, PG, CHG
    Principal Hydrogeologist / Water Planning and Development Market Sector Leader

    COLORADO

    Greenwood Village (Denver)

    7100 E Belleview Avenue, Suite 125
    Greenwood Village, Colorado 80111

    (303) 232-3310

    Gabriel Iltis, PhD, PE
    Denver Branch Manager


    Durango (Daniel B. Stephens & Associates)

    125 Mercado Street, Suite 119
    Durango, CO 81301

    (970) 403-8895

    John Casey, PE
    Senior Engineer / Durango Branch Manager

    MARYLAND

    Washington, D.C. Area (Daniel B. Stephens & Associates)

    43 Randolph Road, Suite 129
    Silver Spring, MD 20904

    (301) 755‐6270

    Gregory Schnaar, PhD, PG
    Senior Environmental Scientist / Legal Market Sector Leader

    NEW MEXICO

    Albuquerque (Daniel B. Stephens & Associates) Headquarters

    6020 Academy Road NE, Suite 100
    Albuquerque, NM 87109

    (505) 822-9400

    James Kelsey, PG
    President, Daniel B Stephens & Associates, Inc. / Senior Vice President, Operations, GLA / Operations Unit Manager

     

    Albuquerque, (Daniel B. Stephens & Associates) Soil Testing & Research Laboratory

    4400 Alameda Boulevard NE, Suite C
    Albuquerque, NM 87113

    (505) 889-7752

    Joleen Hines
    Laboratory Services Operations Manager

    NEVADA

    Sparks (Reno)

    4960 Vista Boulevard, Suite 100
    Sparks, NV 89436

    (775) 284‐5500

    Robert Valceschini, PE
    Principal Engineer / Mining Market Sector Leader


    Reno (MINES Group, Inc.)

    1325 Airmotive Way, Suite 175U
    Reno, NV 89502

    (775) 322-7622

    Kenneth (Ken) L. Myers, PE
    Civil/Geotechnical/Geological Engineer

    OREGON

    Newport

    PO Box 288
    Newport, OR 97365

    (541) 848-8859

    Aaron Ogorzalek, PE
    Senior Engineer / Newport Branch Manager

    Portland (Summit Water Resources)

    4784 SE 17th Avenue, Suite 111
    Portland, OR 97202

    (503) 967-7050

    Jason Melady
    Principal Hydrogeologist / Portland Branch Manager

    TEXAS

    Austin (Daniel B. Stephens & Associates)

    12303 Technology Boulevard, Suite 930D
    Austin, TX 78727

    (512) 821-2765

    Kevin Hopson, PG
    Principal Hydrogeologist / Texas Unit Operations Manager

     

    Lubbock (Daniel B. Stephens & Associates)

    4601 50th Street, Suite 113
    Lubbock, Texas 79414

    (806) 785-7280

    Todd Seebaum, CAPM
    Lubbock Branch Manager

    washington

    Camas (Summit Water Resources)

    416 NE Dallas St., Suite 201
    Camas, WA 98607

    (360) 566-7119

    Brad Bessinger, PhD, PG
    Principal Geochemist /Summit Water Resources 

    WISCONSIN

    Beaver Dam (Kunkel Engineering Group)

    107 Parallel Street
    Beaver Dam, WI 53916

    (920) 356‐9447

    Don Neitzel
    General Manager / Kunkel Engineering Group Operations

     

    West Bend (Kunkel Engineering Group)

    1115 South Main Street
    West Bend, WI 53095

    (920) 356-9447

    Mitch Leisses
    Construction Manager / West Bend Branch Manager

    LIMA, PERU

    Avenida Pardo y Aliaga 675, Oficina 402
    San Isidro, Lima 15073, Perú

    P# 520.812.0229

    Veronica Rodriguez, PMP
    General Manager Latin America

    GLA COMPANIES:

    GLA, Kunkel, Clear Creek, DBS&A, MINES Group, Summit