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"� �.,,*'i■I Emcon As#bciates 1433 North Market Boulevard •Sacramento.California 95834; 91 ) . Fax(916)928-3341 ENViROIN ,E i ,VICE 93 JUL 3 P 1) 51 July 30, 1993 RECEIVED Proposal Number P93-040.31 AU o 2 1993 Philip Isorena €NVIRONMOTAI HEALTH California Regional Water Quality Control Board PERMIT/SERVICES Central Valley Region 3443 Routier Road Suite A Sacramento, California 95827-3098 Re: Revised Project Schedule for Phase II Assessment, Port of Stockton Terminal Facilities, Stockton, California Dear Mr. Isorena: On behalf of the Stockton Terminals Technical Committee (STTC), EMCON Associates (EMCON) is pleased to submit this revised project schedule for the Phase II Assessement to be conducted at the Port of Stockton. The revised project schedule reflects a 5 week reduction in the estimated time frame to complete the assessment. Once the project begins, a schedule with specific dates for task duration and completion deadlines will be issued. Future revisions to the schedule may be made as the project procedes and tasks are completed. In addition, several subtasks and tasks may be conducted concurrently, further reducing the time frame for completion of the project. EMCON will inform you of project status and completion of tasks during the course of the project by providing monthly status reports. A minumum period of two weeks for data review is indicated between completion of Cone Penetrometer Testing and HydroPunch sampling programs and the beginning of the exploratory boring and well installation program. The data review period will permit evaluation of the stratigraphic and analytical data and to determine the optimum locations for placement and completion intervals of groundwater monitoring wells. EMCON will present the proposed monitoring wells to the STTC and the RWQCB for concurrence and approval prior to beginning monitoring well installation