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DEP Permit No . : 0166929-010-EM The Contractor shall continuously monitor the horizontal and vertical position of the dredge and cutterhead through the use of electronic positioning equipment previously approved by the County. A Differential Global Positioning System (DGPS) or equivalent shall be used to determine the horizontal position of the cutterhead. The horizontal positioning equipment shall maintain an accuracy of ±3 feet. The maximum cutterhead depth shall be measured by an appropriate depth measuring device. The cutterhead depth positioning device shall maintain a vertical accuracy of ±0 . 5 feet and have the ability to perform hourly or real-time tide corrections. The tide shall be measured using a tide staff or electronic gauge in the vicinity of the active borrow site, and the Contractor shall have the ability to retrieve the tide data on a real-time or hourly basis. The Project Engineer shall enforce these requirements during project construction under the terms and provisions of the Technical and Environmental Specifications and through compliance and enforcement provisions as stipulated by the Contract Documents . The Contractor is required to continuously operate the electronic positioning equipment and plot the position of the dredge cutterhead. The positioning equipment shall be installed on the dredge so as to monitor, as accurately as possible, the actual location of the cutterhead. A printout of the horizontal location of the cutterhead in State Plane coordinates and the cutterhead depth (corrected for tide elevation and referenced to NGVD and time) shall be maintained using an interval of 30 seconds for each printed position. Printed and electronic files of the position data (in ASCII format), position plots, the location of the master antenna on the dredge, and the distance and direction from the master antenna to the cutterhead shall be provided to the County as part of the daily report. Monitoring and Reporting The daily review process shall include continuous monitoring of the position of the dredge and cutterhead through the use of global positioning equipment and a tide adjusted depth measuring device. This data shall be reviewed by the on-board Dredge Operator on a continuous basis and reviewed by the Contractor and Site Representative daily. The Contractor shall be available to the Dredge Operator at all times in the event that a problem or difficulty arises with the dredge or dredging operation. The daily report shall include the location of the cutterhead in State Plane coordinates and the cutterhead depth, corrected for tide elevation and referenced to NGVD and time, taken at 30 second intervals. Additionally, the daily report shall include an assessment of the quality and volume of material being dredged. Remediation The Contractor is charged with ensuring the correct volume of material is placed within the beach fill template along the Sectors 1 and 2 shoreline and to guarantee that excavation shall not extend below the allowable depth, within the dredge exclusion area, or outside of the spatial (horizontal) limits of the borrow areas as detailed within the construction documents and the issued Permits . The Contractor shall be responsible for establishing such control as may be necessary to ensure strict adherence 8