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<br />� EOCON
<br />PETRINA ZEN, PE
<br />PROJECT ENGINEER
<br />City of Santa Ana
<br />RFP 23-123 — On -Call Geotechnical Engineering Services
<br />Ms. Zen was an engineering intern from California State
<br />Polytechnic University, Pomona, and was brought on
<br />board because of her understanding of geotechnical
<br />engineering practices and quick learning capabilities.
<br />She has been with Geocon for nine years and is
<br />responsible for aspects of projects including coordination
<br />and execution of field explorations, assignment of
<br />laboratory testing, review and interpretation of laboratory
<br />testing results, engineering analysis, the evaluation of
<br />stormwater infiltration rates, and the preparation of
<br />technical reports and letters in Los Angeles and Orange County. Her
<br />experience includes city and state facilities, commercial and residential
<br />developments, educational institutions, and multi -story structures with
<br />subterranean parking levels. If needed, Ms. Zen also performs geotechnical
<br />inspection and testing services during construction. Her recent experience
<br />includes:
<br />EXPERIENCE
<br />9 years
<br />EDUCATION
<br />BS, Civil Engineering,
<br />California State
<br />Polytechnic University,
<br />Pomona
<br />REGISTRATIONS
<br />- CA: Professional
<br />Engineer, Civil, No. 87489
<br />CERTIFICATIONS
<br />- Nuclear Density Gauge
<br />Or?r.AN17ATIr)NR
<br />- CalGeo
<br />CITY OF NEWPORT BEACH DEPARTMENT OF PUBLIC WORKS, ON -CALL
<br />GEOTECHNICAL ENGINEERING, MATERIALS TESTING, & INSPECTION
<br />SERVICES CONTRACT
<br />Ms. Zen served as a Project Engineer for the 2019-2020 Slurry Seal Program under Geocon's on -call
<br />geotechnical, materials, testing and inspection services contract with the City of Newport Beach. Geocon
<br />performed sampling and testing in general conformance with the Green Book specifications, current American
<br />Society for Testing and Materials (ASTM) methodology and/or other applicable procedures. Samples were
<br />tested for Wet Track Abrasion, Slurry Emulsion Oil Content, and Slurry Aggregate Gradation. Geocon
<br />performed various test on multiple streets throughout the City of Newport Beach in order to improve roadway
<br />conditions throughout the City.
<br />DEPARTMENT OF GENERAL SERVICES, CALIFORNIA HIGHWAY PATROL, BALDWIN PARK, POMONA,
<br />CALIFORNIA
<br />Geocon performed a geotechnical investigation report for the proposed California Highway Patrol Facility in
<br />the City of Pomona, California. The project consists of constructing a new CHP field office campus as well as
<br />a one-story office building, auto shop with car wash bay, radio vault building with equipment storage,
<br />communications antenna, parking lots and associated driveways, curb and gutter, and sidewalk
<br />improvements. As a Project Engineer, Ms. Zen was responsible for the coordination and execution of the field
<br />exploration programs, including utility mark out and site drilling, assignment of laboratory testing, engineering
<br />analyses, and authoring technical reports and letters.
<br />ORANGE COUNTY FIRE AUTHORITY TRAINING TOWER, IRVINE, CALIFORNIA
<br />Geocon provided a geoenvironmental investigation for the Orange County Fire Authority Training Tower
<br />under our On -Call contract. The site was previously occupied by two campuses; one consisted of a trench
<br />rescue operation training station, and the other campus consisted of an unpaved parking and storage area.
<br />The proposed project site was improved with a three-story training tower, a new roof rescue training station,
<br />two shipping containing training structures, an 18-foot-tall splash wall training prop, and two single -story
<br />modular structures with associated toilet room and shower. Ms. Zen provided report and letter review for the
<br />project.
<br />Geocon 2023-333 Page 8 August 28, 2023
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