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Name: i06_Bathy_NCRO_20190708_LittleHastingsTract

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The California Department of Water Resources (CA-DWR), North Central Region Office (NCRO), Bathymetry Data Collection Section, conducted a bathymetric survey of Little Hastings Tract and "Fong's Island" for the Bay Delta Office (BDO). The main purpose of the data is to replace outdated and inaccurate data, help with the evaluation of a large number of restoration proposals nearby, and supplement a December 2018 interferometric survey by USGS in adjacent waterways. This survey was conducted by kayak due to hazardous shallow water and thick aquatic vegetation. At the time of the survey the south end of the Fong's Island was entirely inaccessible due to vegetation (it was later surveyed in August 2019). </SPAN><SPAN>The data were collected in NAD83 (California State Plane Zone II coordinate system) and NAVD88 datums.</SPAN></P><P><SPAN /></P><P><SPAN>• Survey Dates: July 8, 2019 </SPAN></P><P><SPAN>• Instrumentation: Singlebeam echo sounder with Real Time Kinematic (RTK) GPS procedures. </SPAN></P><P><SPAN>• Point Spacing: about 1 Foot</SPAN></P><P><SPAN>• Horizontal Units: US Foot</SPAN></P><P><SPAN>• Vertical Units: US Foot</SPAN></P><P><SPAN>• Related datasets: Little Hastings Tract Singlebeam, June 2019; Little Hastings Tract Singlebeam, August 2019; USGS Cache Slough Complex Interferometric, December 2018 (EXTERNAL)</SPAN></P></DIV></DIV></DIV>

Copyright Text: California Department of Water Resources, Division of Regional Assistance, North Central Region Office, Hydrography and Technical Support Section.

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