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PACIFIC EXHIBIT A INTERNATIONAL ENGINEERING SCOPE OF WORK Technical Proposal PLLC LIDAR Mapping Phase I Maple River and Overflow Area Flood Insurance Study in Cass County, ND Background The purpose of the Work is to provide LIDAR mapping Phase I acquisition as part of detailed flood elevations and floodway boundaries, Flood Insurance Rate Maps and Flood Insurance Studies for study area in Cass County, ND. At the Sheyenne River FIS kickoff meeting on June 26, 2002 and at the review meeting on April 22, 2003, the communities requested that the Sheyenne River FIS be expanded to include the lower Maple River and its breakout area. The expanded FIS is necessary to complete the Sheyenne River FIS, as the Maple River breakout significantly affects flood elevations and flood boundaries in Mapleton Township. The communities place the Maple River FIS at the highest priority on their list of proposed studies. The study reach includes an approximately 30-mile reach of the lower Maple River from its confluence with the Sheyenne River to approximately one half mile downstream of Burlington Northern Railroad Bridge at Durbin; a 20-mile reach tributary of breakout flow area in Durbin, Mapleton, and Raymond Townships; and the flood breakout areas on both sides of this reach of the Maple River and tributaries. The downstream side flood elevations will match with the current FEMA study and the Sheyenne River breakout flows will be merged with the Maple River breakout flows in the tributary study reach. The LIDAR 1-foot contour topos for a total area of approximately 91- square-miles on the west and north of the Sheyenne River breakout LIDAR mapping area will be acquired. The LIDAR mapping work will be performed in two phases. Phase I consists of LIDAR Surfacing and Orthophotography. Phase II consists of Contour Generation and Planimetric Mapping. The Phase II LIDAR work and other FIS tasks will be performed by PI Engineering and its subconsultants under a separate study contract with FEMA Region VIII. This Scope of Work pertains only to Phase I of the LIDAR mapping portion of the FIS study. Task 1.0 Aerial Mapping Coordinate areas of coverage, specification of vertical and horizontal control, scales, and other details affecting the topographic representation of the study area that is necessary for detailed hydraulic modeling of streamflow. Aerial LIDAR mapping will be subcontracted by PI Engineering to Horizons, Inc., of Rapid City, SD. Their proposal is attached as Exhibit A-I.