Operational for more than 50 years, LACO Associates provides consulting services in civil engineering, geology, environmental science, planning, drilling, surveying and material testing throughout Northern California and Oregon. Its civil engineering services include project planning and development, feasibility studies conduction, surveying, mapping, pollution control and treatment, and hydrologic and hydraulic analysis. LACO Associates also provides flood control, site draining, soil engineering, construction material testing and inspection, project and construction management, and forensic assessment and expert witness services. Its geology and geotechnical services include rock and gravel quarry assessment, geomorphic mapping, slope stability modeling, foundation design, liquefaction analysis and trenching. In addition, the firm offers under-used property development, feasibility consulting, wetland delineation, permitting, extraction well installation, construction staking, structural masonry inspection, and high-strength bolt sampling and testing services. LACO Associates is located in Eureka, Calif.