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Indian River County Sector 3 - Beach Restoration Project Additional Services Scope of Work Plane Coordinate System, NAD83/90 adjustment and tied to the Florida High Accuracy Reference Network (HARN) . Task lb - Aerial Photography: The COUNTY will monitor weather and tide conditions and notify P&A and COASTAL TECH by phone as far in advance as possible as to an appropriate window of Opportunity for performance of the photography. During the designated flight week, the COUNTY shall notify P&A by telephone on the morning of an appropriate day in which acceptable weather and water conditions exist. P&A shall conduct the aerial photography work the same morning that this notice to proceed is provided by telephone. The final decision to authorize or postpone the flight will be made by the COUNTY no less than one hour prior to the beginning of the flight window for that day and in direct communication with the flight pilot. Photography shall be obtained by P&A during morning hours with cloud cover at less than 10% , and in order to minimize glint, the flight window shall occur when the sun angle is between 15 to 30 degrees to the horizon. If, during the flight, weather conditions deteriorate to the point that the purposes of the flight can not be met, or the five flight conditions specified above can not be met, it is the responsibility of P&A ' s flight photographer to determine whether or not to terminate the flight and complete the scope of work on another day. It is the responsibility of P&A to determine the best color film available to meet the stated objectives of the COUNTY. The photography (by P&A) shall employ the use of a precision Zeiss RMK/A cartographic camera (or equal) calibrated by the US Geological Survey. The camera will be equipped with a data block, which will record the lens number, calibration, focal length of the lens, altitude, date, and time. The photographs will be color aerial photography, reproducible mylars, and geo-referenced digital imagery with the following specifications : a) Using airbourne GPS technology, P&A will record a graphical point on each photograph. A minimum of eight points will be field located on the ground by M&E. b) A 60% overlap with each adjacent photograph and a ratio of 50% land (2000' to 2000') and 50% ocean (2000' to 2000') on the horizontal. c) Maximum tangential and radial distortion for focal lengths from 85 mm to 305 m shall be .005 to .007 mm. d) Calibrated focal length error shall not exceed . 02 mm . e) The image will be clear and sharp in detail, free from clouds, shadows or any other blemishes that would render the image as uncertain for mapping rock and reef features as far offshore as possible and no less than - 80 feet NGVD. f) Each frame must contain : i. time of day clock in standard time, ii. altimeter reading, iii. exposure counter, iv , camera identification number, V . lens focal length in mm, and vi. the plate ID number. Page 3 of 14 June 13, 2007