Agmt 2003 HJW Geospatial Inc - Laserfiche WebLink

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Task Timeline Ground Control Two weeks from N.T.P. Aerial Photo a h One week after aerial tar ets set Aerotrian lation Three weeks from recei t of ound control Update Contour, DTM & Planime Twelve weeks Ortho hoto a h Thirteen weeks Hardco M lars Three weeks after delive of final ortho hotos Entire project will take six months to complete weather permitting. More definitive dates can be assigned once photography has been acquired. 3.0 MAPPING AREA The mapping area is defined as the original Project Area (the city boundary) plus a one quarter mile buffer. 4.0 FLIGHT AND CONTROL PLAN HJW GeoSpatial, Inc. shall provide a flight and ground control plan. This plan shall include direction of flightlines, location of exposures along each flight line, type and focal length of camera, photo scale flight altitude and location of HJW's proposed ground control. The final plan shall be approved by the City. 5.0 GROUND CONTROL Ground control shall be established by acceptable GPS survey methods under the supervision of a California Licensed Land Surveyor (McGill Martin Self, Inc.) authorized to practice land surveying. Coordinate grid system shall be based on the NAD 83 California State Plane Coordinate System, Zone III (feet). Elevations shall be based on the North American Vertical Datum 1988 (NAND 88). A total of 28 additional and 30 existing horizontal/vertical points have been identified by HJW as the necessary number required for the update of contours and digital orthophotos at the specified accuracy standards. HJW will use existing City monuments to reduce the cost of setting new survey monuments. Questions of monument suitability shall be mutually resolved between the City and HJW. All photogrammetric control shall be established by acceptable GPS survey methods. Surveys using Traverse methods shall conform to FGCC Third Order, Class I accuracy standards. 6.0 AERIAL PHOTOGRAPHY HJW shall fly a complete new set of stereo aerial photos at a scale of 1"=400' to cover the entire City of San Leandro project area (city boundary) plus one-quarter mile buffer. The photography will be flown during prime weather conditions to maximize sun angle and minimise cloud cover Exhibit A Page 3 of 3 03/07/03 Hammon, Jensen, Wallen & Associates, Inc.