SITE INFORMATION AND CORRESPONDENCE

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SECOR -- Ms. Mary Serra October 6, 2005 Page 2 • Robert Traylor distributed to the RWQCB a letter detailing proposed cleanup values to be applied at Parcel 2A. Robert stated that another document will follow in about seven days detailing the RDA's cleanup strategy for the site. • Mary Serra stated that source removal was a critical issue to the RWQCB. The L&M group explained that source removal has been conducted by the L&M group at the L&M OU, consisting of excavation activities and installation and operation of dual-phase extraction (DPE) and soil vapor extraction (SVE). Work plans for these activities have been reviewed and approved by the RWQCB. • The L&M group also noted that it had submitted a workplan to the RWQCB for source removal at the Unocal OU, which had been approved by the RWQCB. The L&M Group stated that it has been prepared to commence excavation activities at the Unocal OU since July, but that the RDA has written to the L&M Group stating that it is not allowed on the property to implement the approved workplan. The L&M group explained that following excavation at the Unocal OU, a temporary parking lot could be constructed and that pipeline removal activities could then be performed at the Waterfront Towers property north of the L&M OU. • Jerry Lile, Margaret Dahlen, and Ray Kaminksy discussed the human health risk assessment (HHRH) for the L&M OU. The HHRA was submitted in 2004. Excavation and additional sampling at the L&M OU, and rounds of comment and response to comment have taken place since 2004. L&M group is working with the DTSC to get the HHRA finalized as soon as possible. • Robert Traylor stated that the RDA is putting together a plan to move forward with site cleanup at the Unocal and Morton Alco OUs that will incorporate remedial activities already in place at the L&M OU. However, the RDA will not discuss the plan at this time. • Audrey Winters stated that she will provide a timetable for when the RDA could discuss technical issues at the site by Tuesday evening, September 20, 2005. • Robert Traylor stated that the RDA is "working the process" and will provide a site cleanup strategy to the RWQCB in the next couple weeks. Not a work plan, but a remedial strategy to be considered for the Parcel 2A site. The cleanup strategy to be provided by the RDA will include a plan for both soil and groundwater cleanup. • Robert Traylor stated that he has been instructed by the RDA to cease any further technical discussions with the L&M group. The L&M group stated that it is moving ahead on all fronts and is prepared to continue technical discussions. • The L&M group has employed source reduction via excavation and SVE to address groundwater at the L&M OU, as well as DPE to address separate phase hydrocarbon. Additional groundwater remedial strategies are currently being considered and a plan for addressing petroleum-affected groundwater at the L&M OU will be provided to the RWQCB in November/December 2005. • Ton Vorster reiterated that the RDA must provide a date that they will be willing to answer questions and discuss technical issues regarding Parcel 2A as soon as possible to eliminate further delays.