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Dan Heston Engineering Services During Construction 32 years of professional experience • Irvine, California Dan has more than 20 years of inspection experience. He began his career as a field technician and quickly advanced to the role of operations manager and construction inspector. Dan has worked on many types of projects as a senior construction inspector, quality assurance and quality control paving inspector, and roadway inspector among others. Dan has worked on freeways, airports, dams, schools, military bases, railroads, housing tracts, and various private and public works projects. He managed a testing lab and oversaw daily operations, including breaking concrete test cylinders, Proctor and Marshall testing, and sieve analysis. Dan has dispatched field inspectors and reviewed daily field and lab testing reports. EDUCATION Attended California State University, Long Beach, California CERTIFICATIONS & TRAINING Nuclear Gage License #23624, CPN, San Clemente, California, 1994 PROJECT EXPERIENCE City of Santa Ana Well 40 PFAS I On -Call Consulting Services for PFAS Treatment Systems Design Orange County Water District (OCWD) I Santa Ana, California I Sr. Construction Inspector/Office Engineer To build an addition to the existing water treatment system.. this project encompassed piping for the Ion Exchange Vessels, Booster Pump and Cartridge Filter systems to filter and remove the PFAS from the ground water. Dan inspected the construction of the filter systems, mechanical and electrical systems, building of the CMU walls and fencing for the project yard enclosure, as well as the paving for the site. He managed the monthly pay application and held bi- weekly progress meetings. Dan helped make sure that the construction was performed as per plan and that the work was done in a safe manner. Metro Crenshaw/LAX Light Rail I Los Angeles, California I Sr. Structures/Civil Inspector This project is an 8.5-mile extension light rail from the Exposition Line to LAX. It has eight stations either at, above or below ground with six bridges. Dan's duties consisted of: 1) inspecting the construction of the Guideway and ballast retaining walls, as well as station structures to assist in ensuring that they are built as per plans and specifications: 2) documenting man power, equipment, materials and as built plans; 3) assisting in the monthly progress payments; 4) assisting in track placement inspections; and 5) helping to ensure work was being performed in a safe manner. Orangethorpe Grade Separation I Anaheim, California Sr. Structures/Civil Inspector This project consists of building a bridge over the railway tracks and three bridges over river channels with nine mechanically stabilized earth (MSE) walls to build the grade separation. Dan's responsibilities consisted of: 1) document pile driving, MSE wall construction and bridge structure construction. materials, equipment, man hours and activities being performed on a daily basis; 2) help make sure that the work is being performed to the specifications of the plans and change orders; 3) oversee that the work is being done in a safe manner: and 4) assist in monthly progress payments. 1-405 & SR- 134 Freeway Sound Walls` I Metro Burbank and Mission Hills, California I Construction Inspector Dan reviewed submittals. RFIs, and pay progress reports. He also tracked labor, equipment, material, and work methods. Dan oversaw the special inspectors and documented their testing to verify the project met contract documents and specifications. The project work included building barriers and sound walls along the freeway. SIR-55/SIR-22 Interchange Widening* I Santa Ana, California I Roadway Inspector Dan led inspections for the ramp and bridge widening. He verified the structural excavation and backfills. k-rail placement and constructions signs, and traffic control and striping met plan specifications. He inspected roadway sections, drainage systems, utilities, AC, and concrete placements. Dan also oversaw erosion control and landscapes. denotes projects completed with other firms City of Santa Ana On Call Engineering Design Services for PFAS Treatment Systems REP NO. 22-133 A-35