2008-04-08_PERMIT FILE - M2008001

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ROBERT J. HUZJAK, P.E. PAGE2 KEN MITCHELL LAKES, BRIGHTON, COLORADO, FOR CfrY OF BRIGHTON. Project Manager for evaluation of causes of leakage through an existing soil-bentonite cutoff wall and development of methods to repair the wall, and construction services to repair the wall, Also provided technical support to the City for litigation. Responsibilities included geotechnical evaluation to evaluate consistency of soil-bentonite cutoff wall and key depth into bedrock, identification of probable construction defects, and development pf procedures to repair the wall and determine correlation between existing conditions and final payment records. GENERAL GRAVEL PITS CONSULTANT, FOR CITY OF THORNTON. Project Manager responsible for providing engineering consulting services. Work included providing support the City with their planning, design, monitoring, construction and purchase of gravel pit water storage facilities. As part of this engagement provided the following services: • Developed and implemented systems to monitor groundwater levels around current and future gravel pit storage facilities. • Developed technical criteria for inclusion in purchase agreements far gravel pits. Assisted with review, evaluation and negotiation of gravel pit purchase agreements. • Provided expert testimony in support of condemnation of gravel pits. • Reviewed and evaluated design documents for soil-bentonite cutoff walls. compacted clay liners and interconnects for gravel pits and for embankments, outlet works, and spillways forjurisdictional dams. Reviewed and assisted with obtaining permits for construction of dams and reservoirs in flood plains. • Developed conceptual and preliminary designs and cost estimates for several proposed reservoirs including: 104th and Riverdale, West Sprat Platte, Villaneaux, and Timnath. Project components included river diversions, pipelines, surface water diversions, well fields, interconnects, pump stations, clay and soil-bentonite liners, spillways, access roads, and embankment dams. Identified permitting requirements by the Division of Minerals and Geology, State Engineer, Urban Drainage and Flood Control District, US Army Corps of Engineers, and local city and county governments. • Assisted with development of project implementation schedule/plan for purchase and development of gravel pits. • Performed site visits to observe, document and monitor progress of construction for gravel pits and to obtain survey data to confirm that the facilities were constructed in substantial conformance to the design documents. • Designed, developed bid documents and provided construction engineering services for Phase 1 of the Tigers to East Sprat Interconnect pipeline. Led permitting efforts to obtain required permits from the State Engineer and the Division of Minerals and Geology. • Developed a groundwater model to evaluate potential impacts to the groundwater regime around East Sprat gravel pit. ~ ~` ~.