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                                              services | Vibracore | st. joe | shell pond | richmond | whitefish | ft. bragg | transbay cable  

                                              RICHMOND INNER HARBOR SEDIMENT SAMPLING

                                              Richmond, CA

                                              Client: Contra Costa County

                                              Periodic dredging is required in Richmond Inner Harbor to allow deep draft vessels from running aground in the channel. DMS was responsible for taking 17 core samples along the channel to provide data about the physical & chemical characteristics of the sediment in order to determine where the dredge spoils could be deposited. DMS used the R/V Lakota and her 6" Pneumatic Vibracore Head to perform the work. Each sample location was determined using the Differential Global Positioning System (DGPS), all samples were 4 inch in diameter and to depths of 15 feet.
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                                              Dixon Marine Services, Inc.
                                              12786 Sir Francis Drake Blvd. Inverness, CA 94937
                                              Office: 415.669.7369      Fax 415.669.7409
                                              DMS