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Name: i06_Bathy_CP_20220830_GrantLineCanal

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Cinquini &amp; Passarino Inc. conducted a bathymetric survey of portions of Old River, Grant Line Canal, Paradise Cut, Sugar Cut, Tom Paine Slough, Middle River and San Joaquin River for the Bay Delta Office and for Hydrologic Systems Incorporated for the South Delta Water Agency. The purpose of the dataset is to replace outdated and inaccurate data, help with the evaluation of sedimentation trends, improve numerical models, inform bathymetry changes near exports, and be a resource for informing management decisions such as dredging. This singlebeam dataset is meant as a supplement to the related multibeam and topographic point datasets from the same date range.</SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>Original field survey datum horizontal: NAD83 (2011) epoch 2017.5, California State Plane Zone III, US Survey Feet; and vertical: NAVD88, US Survey Feet have been converted to California Teale Albers, NAD83 at time of field survey data import.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>• Survey Dates: Between December 12, 2021 and August 30, 2022. </SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>• Instrumentation: Singlebeam echosounder with Real Time Kinematic (RTK) positioning corrections or direct RTK measurements (see report for locations).</SPAN></SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN>• Point Spacing: 3 feet nominal</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P><P STYLE="margin:0 0 0 0;"><SPAN>For additional details refer to the report "Southern Sacramento-San Joaquin River Delta Condition Bathymetric Survey, October 2022" available upon request.</SPAN></P><P STYLE="margin:0 0 0 0;"><SPAN /></P></DIV></DIV></DIV>

Copyright Text: Data Collection: Cinquini and Passarino, Inc. Data Review and Archival Services: California Department of Water Resources, Division of Regional Assistance, North Central Region Office, Hydrography and Technical Support Section.

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