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Greg Sebourn PLs, MASCE <br />Survey <br />22 years of experience - Irvine, California <br />Greg has more than 22 years of professional experience in numerous aspects of land surveying and mapping. <br />His expertise includes business development; project management; client management; and surveying, <br />mapping, and map checking services. He works with public and private clients throughout Southern California <br />and some of his municipal projects have included the Anaheim Stadium properties subdivision, monument <br />preservation efforts, design topographic, and construction surveys for pavement, sewer, and right-of-way <br />improvement projects. In addition, Greg has broad experience in land surveying and mapping education, and is <br />an adjunct faculty member at Rio Hondo College, a guest lecturer at Santa Ana College, and serves on the Cal <br />Poly Pomona Civil Engineering Advisory Council. Greg has served as the California Land Surveyors <br />Association's (CLSA) Director and CLSA's Orange County Chapter President. Greg serves as a Subject Matter <br />Expert for the California Board for Professional Engineers, Land Surveyor, and Geologists. <br />EDUCATION <br />AS, Survey —Mapping, Santiago Canyon College, <br />Orange, California <br />REGISTRATIONS <br />Professional Land Surveyor #8395, California <br />PROJECT EXPERIENCE <br />On -Call Consulting Services for PFAS Treatment <br />Systems Design I OCWD I Santa Ana, California <br />Survey and Mapping Task Lead <br />Greg supported the conducing boundary and <br />topographic surveys over portions for related <br />properties as pertaining to preliminary design, <br />final design, engineering services and construction <br />staking. This ongoing assignment is currently <br />in construction. <br />Robert W. Goldsworthy Desalter* I WRD <br />Torrance, California I Project Surveyor <br />The desalter expansion required implementing a <br />control survey, centerline and right-of-way alignment <br />survey, terrestrial topographic survey, and a <br />photogrammetric survey. The project required a <br />high -precision geodetic control survey to tie current <br />conditions and control to the historic control used at <br />the time the facility was first constructed. Additionally, <br />the survey required setting seven aerial targets for <br />correlation of imagery to ground conditions, Once the <br />data was collected from photogrammetric processes: <br />a ground survey of key topographic features was <br />conducted. One innovation expanded the aerial <br />coverage beyond the initial work limits in anticipation <br />that the project scope could be revised to <br />accommodate certain conditions, The additional <br />photogrammetric coverage had no additional cost and <br />remains available should WRD choose to revise the <br />route or limits of design. The survey data was <br />delivered on schedule and on budget. <br />On -Call Surveying and Mapping I Metropolitan Water <br />District (MWD) of Southern California` I County of <br />Riverside, California I Survey and Mapping <br />Task Leader <br />Greg led the effort to conduct boundary and <br />topographic surveys over portions of MWD pipeline <br />easements and related properties. The project <br />included several miles of pipeline, as well as dozens <br />of properties and easements. The boundary covered <br />several Public Land Survey System Sections, as well <br />as rancho boundaries. His deliverables included <br />CADD files, point files. GIS .SHP files, and a <br />Record of Survey map filed with the Riverside <br />County Surveyor. <br />Topographic and Right -of -Way Mapping —Cerritos <br />Reclaimed Water Line Network Extension* <br />Cerritos, California I Project Surveyor <br />Greg was the project surveyor for the Cerritos <br />Reclaimed Water Line Network extension, which <br />provided the surveying team with unique challenges <br />that were overcome throughout the project. The <br />two-mile extension crossed through three cities <br />(Cerritos.. Lakewood. and Cypress), two counties <br />(Los Angeles and Orange Counties), and multiple <br />special districts. The survey required re-establishing <br />key Section Corners, street intersections, and county <br />boundaries as well as city boundaries. The <br />topographic component required setting 13 aerial <br />targets to collect data suitable for 40-scale mapping <br />with one -foot contour interval. The project required <br />filing multiple Corner Records for centerline <br />monuments reset in the field, one of which also <br />served as the boundary monument for the cities of <br />Lakewood and Cerritos. The survey data was <br />delivered on time and on budget. <br />'denotes projects completed with other firms <br />City of Santa Ana On Call Engineering Design Services for PEAS Treatment Systems RFP No. 22-133 A-17 <br />