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Quick-N-Save #1 - 2 - 20 April 2023 <br /> 2. Collection of a deeper grab groundwater sample to the northeast of CPT-12 is <br /> needed for vertical delineation in this direction. This grab groundwater sample <br /> should be collected from approximately 20 feet below the bottom of the well <br /> screen for the well referenced in comment 1. The exact sample location should <br /> be based on encountered geology during drilling. The sample can be collected <br /> from the same borehole as the well discussed in comment 1, provided steps are <br /> taken to prevent cross-contamination. <br /> 3. Additional delineation is needed to the southeast of the Site at a depth of <br /> approximately 60 to 70 ft bgs. Frey recommended two additional wells one <br /> approximately 200 feet south of CPT-9 and one approximately 250 feet south of <br /> CPT-10. Staff concur with these locations and proposed screen intervals. <br /> 4. As a cost saving measure, staff are willing to reduce the groundwater monitoring <br /> program. Please include a proposed groundwater monitoring program in the <br /> work plan. <br /> If you have any questions or concerns, please contact me via phone at (916) 704-4896 <br /> or via email at vera.fscher@waterboards.ca.gov. <br /> Sincerely, <br /> �SS19�ut G�q <br /> Vera Fischer, P.G. o`� ��pRick 00 <br /> Engineering Geologist <br /> M <br /> 9542 <br /> do ar <br /> t <br /> Galvin Kauffman, P.G. 9542 r4l�or CX�1F�4` <br /> Senior Engineering Geologist <br /> cc: Mr. Joe Frey, Frey Environmental, Inc., Newport Beach (email) <br /> Mr. Kent Tucker, Frey Environmental, Inc. (email) <br /> Connor Shingai, ECAP (email) <br /> Adrian Perez, ECAP (email) <br />