SITE INFORMATION AND CORRESPONDENCE

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Draft Final Site-Wide ROD -3- 26 January 1998 DDJC Tracy In addition, for clarity, we request that where the equilibrium partitioning limits are referred to in the ROD (i.e. the sections which present the justification for a number of soil cleanup levels)that this term be followed by the words "developed in the RI/FS "and a specific reference to locate these limits for the reader.] 5. Five-Year Reviews. Each selected remedy which addresses how five year reviews will be conducted, including the OU-1 remedy, should specify that the five-year reviews will evaluate the performance of the selected remedy and be continued for as long as cleanup levels are exceeded or soil contaminants remain in place. The second sentence in Section D.5.2 should be replaced with the following sentence: "The five-year review is required for sites with institutional controls that restrict use, for sites where cleanup standards are not attained or where soil contaminants remain in place. 6. Disposal of Excavated Soil. To provide flexibility, each remedy to excavate and dispose of contaminated soils should replace text regarding pre-determined disposal methods with the following general statement: "The excavated soil will be transported and disposed of at a Class I or other disposal facility in compliance with state and federal laws and regulations." 7. Declaration-Table D-1. Each selected remedy (not no further action remedies) should include ground water monitoring as part of the description in Table D-1. 8. Basin Plan. All references to the Water Quality Control Plan (Basin Plan) for the California Regional Water Quality Control Board, Central Valley Region, should be to the third edition - 1994 for the Sacramento River Basin and the San Joaquin River Basin. Specific Comments 1. Section 9.1.3. Replace the seventh and eighth sentences in this section with the following text: "Each selected remedy of this ROD identifies water quality objectives to protect the beneficial uses of ground water. If any of these water quality objectives is exceeded, the appropriateness of the selected remedy for contaminated soil will be evaluated in the Annual Well Monitoring Report." Add the following sentence after the last sentence in this section: "DDJC Tracy and the agencies will jointly determine if any additional remedial action is warranted." 2. Section 9.4. Replace the"i.e."with"e.g."in the fourth sentence in this section. 3. Section 9.5.3. Modify the last sentence in this section by replacing text to acknowledge that removal actions have been conducted to excavate contaminated soils from the primary soil source areas. Monuron and diuron were not detected in confirmation soil samples collected. 4. Section 9.5.5. Replace the words"proposes raising the cleanup standard"with the words"raises the effluent treatment limit'in the next to last sentence in this section.