Item 21 - On -Call Material Testing and Special Inspection Services

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ArEsco AESCO Proposal No. P6513 Statement of Qualifications Design/Build SR-22 Freeway Widening -Garden Grove Engineering Manager: Mr. Chamaa was the Engineering Manager for the inspection and mix design alternatives and recommendations for the Portland Cement Concrete (PCC) and Lean Concrete Base for the widening and overall improvement for Orange County Transit Authority (OCTA) and Caltrans. Mr. Chamaa worked with the design team and the contractor to qualify aggregate testing and evaluation of the concrete and performed on -site mix design trials. Recommended the most appropriate mix design and additives based on California Test methods. Supervised the testing of concrete products during placement which included aggregate testing, concrete cylinders, LCB samples and flexural strength beam tests. Supervised the flexural strength of the concrete during the pavement construction. Calico Solar Plant Access Bridge -San Bernardino County Engineering Manager: Mr. Chamaa supervised and reviewed the geotechnical recommendations for foundation design for the proposed bridge structure and retaining walls for the BNSF railroad. Preliminary geotechnical recommendations including pile load design data for caissons, driven piles, tip -bearing piles, and friction piles, as well as lateral loads were provided. A review of existing geotechnical and seismic data was conducted for projects in the vicinity. Plant No. 1 Sludge Dewatering Project -Fountain Valley Engineering Manager: Mr. Chamaa was the Engineering Manager for the construction materials testing and inspections for the sludge dewatering project at Plant 1 for Orange County Sanitation District. This project was to enhance the use of existing digesters, and replace the existing sludge handling facility. The new dewatering equipment will remove more water from the biosolids than existing facilities, which in turn will reduce the hauling cost to remote sites. First Street Bridge Replacement -Santa Ana Engineering Manager: Mr. Chamaa supervised the construction materials testing and inspections during the bridge replacement. Testing and inspections were conducted on piles, welding, structural steel, precast concrete, concrete, asphalt, mix designs, etc. Ranger Sewer Lift Station No. 16 — City of Huntington Beach Engineering Manager: Mr. Chamaa was the Engineering Manager for the geotechnical investigation and the materials testing and inspection for construction of Ranger Sewer Lift Station No. 16 in the City of Huntington Beach. The new lift station was 24 feet by 24 feet in plan dimension and was placed at a depth of 18 feet below the existing ground surface. Recommendations were made for a mat foundation, dewatering during construction, waterproofing, pipe bedding, lateral pressures, and shoring. Belmont Pool Rebuild -Revitalization -City of Long Beach Engineering Manager: Mr. Chamaa was the Engineering Manager for the geotechnical and Phase II environmental investigation for the new Belmont Pool for the City of Long Beach. The project generally consists of constructing an indoor pool which is approximately 85 feet by 190 feet in plan dimension housed inside an approximately 60, 000 square foot structure. An outdoor pool with a plan dimension of approximately 85 feet by 185 feet will be located just east of the structure. Construction Material Testing/ Inspection , Environmental and Geotechnical Engineering Services 23 I I a g e g a i t d i a q 4 m e z i c a www.AescoTech.com 7 z a m % 4 e Cf z a a o d ZI A