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' Attachment III, the FS portion of the Work Plan, is very generic. EPA requests DDRW-Tracy to be more specific in identifying tasks which will yield the Comprehensive FS report. (e.g. , contaminant- and technology-specific information, a preliminary list of technologies/alternatives and ARARs, details on the screening strategy, a discussion of treatability studies, etc. ) Attachment III includes a copy of EPA's OSWER Directive 9355. 3-01FS3 (NOV 89) which, though intended to be FS report guidance, provides basic information to assist in the development of a more detailed FS Work Plan. Attachment IV, contains EPA's comments on the QAPP and SAP. In general, these documents also need to be more specific. Further, the authors of the QAPP seem to be under the erroneous assumption that the analytical laboratory will provide the QA/QC procedures. Attachment V, regarding the Data Management Plan, requests DDRW-Tracy to expand its database in the area of QA/QC information. The Work Plan presents a discussion of five additional OUs for DDRW-Tracy (p. 3-184 of addendum) . However, the Work Plan is not the optimum mechanism for the proposal of new OUs (see FFA § 4 . 2 , 8 . 2 and 8 . 4 , which require specific timelines for the review and approval of OUs) . EPA requests that discussions continue (pursuant to Section 4 . 2 of the FFA) to try to achieve consensus between the FFA parties. Once consensus is reached, DDRW-Tracy should formally propose the OUs under separate DLA letterhead. It is EPA' s current understanding that the addendum of 2/6/92 will not impact the schedule for submission of the draft final Comprehensive RI/FS Work Plan and that DDRW-Tracy will submit the draft final on 5/6/92 . Please contact me at (415) 744-2392 should you have any questions. Sincerely, M4_ Michael Work Remedial Project Manager (H-9-1) Federal Facilities Enforcement Branch Office of Superfund Attachments cc: (see distribution list) 2