SITE INFORMATION AND CORRESPONDENCE

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David Wang, P.E. Page 3 The TRC should be formed as soon as possible, definitely prior to the introduction of the next workplan. Much time can be saved if the regulatory agencies can provide significant technical input during a workplan's development. 2) A management plan should also be established. It's exact form can be developed by the TRC. At a minimum it should track all RI activities and provide a monthly summary to committee members. SECTION 2: COMMENTS ON THE ADDENDUM AND HEALTH AND SAFETY PLAN The addendum incorporated DHS's recommendations or provided a satisfactory alternative for each point raised by the August 12 comments. Additional comments are provided on the following chapters of the addendum. o CHAPTER 2 Pa 8 & pg 20/ CHAPTER 3 pg. 4 & pa. 5 Comments on these sections of the workplan referred to the testing and disposal of materials contaminated during the investigation. ERM -West has deferred this task to base personnel or the contractor designated for the next phase of work. This is acceptable considering the limitations of the contract from which ERM -West was working. DHS still requires that proper documentation of disposal procedures be submitted by the responsible party. o APPENDIX C PARAGRAPH 2 DHS recommended increasing the inside diameter of monitoring wells from two inches to four inches. Due to funding limitations, the Navy chose not to adopt this recommendation. DHS accepts these limitations for this phase of work. However, it has been our experience that two inch diameter wells will not provide sufficient information over the duration of the investigation. Four inch wells are strongly recommended for additional RI work at NAVCOMM. o Health and Safety Plan Comments for the health and safety plan are contained in an attachment to this memo. They have been relayed to ERM -West. Our comments are to be incorporated in an attachment to the health and safety plan and submitted to DHS. SECTION 3•'FIELD INSPECTION, 1 FEBRUARY 1989 Reid Buell R.G. (staff associate engineering geologist) and myself performed a site inspection at NAVCOMM. NAVCOMM was in the process of drilling and constructing monitoring wells for Site 5. On site were Ms. Rebecca Odell (NAVCOMM environmental program manager) and Ms. Jackie Thomas (WESDIV program manager).