42 Construction engineering services on public works and commercial facility projects; Quality assessment service and quality management services, namely, quality evaluation and analysis, quality assurance, and quality control, in the field of construction; Construction materials testing services, namely, laboratory testing of soils, aggregates, asphalt cements, Portland cements, and blended material products involving the combination of these component materials; Geotechnical, materials science and environmental engineering services; analytical materials testing and engineering consulting services in connection therewith