{ "culture": "en-US", "name": "Bathy_NCRO_20180605_DelValle", "guid": "", "catalogPath": "", "snippet": "The purpose of this project is to document lake bed elevations, sediment rates, update stage/storage curves, and identify any issues with underwater structures in the Lake.\nThis is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.6, dated September 27, 2023.\nDWR makes no warranties or guarantees \u2014 either expressed or implied \u2014 as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.\nThis Image Service was published on 5/30/2025, by Bianca Pertl of the DWR Division of Engineering, who may be contacted at 916-757-3593, or at bianca.pertl@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate.", "description": "

This archived dataset was developed by DWR for its internal use. This data is not suitable for property boundary determination, construction layout, legal descriptions, or any other professional land surveying or legal purpose. The data represents estimates of past conditions and measurements, may contain errors, and is no longer representative of current conditions. Neither the State of California, its agents, nor its employees, make any warranty, representation or guarantee, express or implied; nor assumes any liability or responsibility for the accuracy, completeness, or usefulness of this data.<\/span><\/p>

The California Department of Water Resources (CA-DWR), North Central Region Office (NCRO), Bathymetry Data Collection Section, conducted a bathymetric survey of the Lake Del Valle Reservoir for the Delta Field Division of CA-DWR.\u2022 The purpose of this project is to document lake bed elevations, sediment rates, update stage/storage curves, and identify any issues with underwater structures in the Lake.\u2022 The survey took place between May 29th and June 5th, 2018 using multibeam echo sounder technology. \u2022 The data were positionally corrected using Inertially Aided Post-Processed Kinematic (IAPPK) procedures.\u2022 The data conforms with the NAD83 (California State Plane Zone III coordinate system) and NAVD88 datums. \u2022 The final density level of the multibeam data points is a 3 foot grid.<\/span><\/p><\/div><\/div><\/div>", "summary": "The purpose of this project is to document lake bed elevations, sediment rates, update stage/storage curves, and identify any issues with underwater structures in the Lake.\nThis is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.6, dated September 27, 2023.\nDWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data.\nThis Image Service was published on 5/30/2025, by Bianca Pertl of the DWR Division of Engineering, who may be contacted at 916-757-3593, or at bianca.pertl@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate.", "title": "Bathy_NCRO_20180605_DelValle", "tags": [ "Elevation", "Sonar", "Multibeam", "Bathymetry", "Sacramento - San Joaquin Delta", "CA", "Lake Del Valle", "May and June", "2018" ], "type": "Image Service", "typeKeywords": [ "ArcGIS Server", "Data", "Image Service", "Service" ], "thumbnail": "thumbnail/thumbnail.png", "url": "https://parcgis.water.ca.gov/arcgisimgpublicmngr/services", "minScale": 33624.239550600774, "maxScale": 1050.7574859562742, "spatialReference": "NAD_1983_StatePlane_California_III_FIPS_0403_Feet", "accessInformation": "California Department of Water Resources, Division of Integrated Regional Water Management, North Central Region Office, Bathymetry Data Collection Section.", "licenseInfo": "

Not for use as a navigation aid.<\/span><\/p><\/div><\/div><\/div>", "portalUrl": "" }