ARCHIVED REPORTS_RESPONSE TO COMMENTS ON DRAFT REMEDIAL ACTION PLAN 2015

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Page 9 groundwater modeling and potential system expansion". We agree with this approach to designing the new system. For clarity, revise this section to include the maximum design flow rate that Nestle is proposing. Nestle Response: The RUP will include the maximum design flow rate. 4. Page 4, Section 3.1.6, System O&M: The sampling frequencies discussed in this section vary from those presented in Table 2 and also differ from the tentative monitoring and reporting program that is currently under review. When the new Notice of Applicability (NOA) is issued to cover the proposed reinjection of treated groundwater, this section and Table 2 should be updated to match the required monitoring and reporting program. Nestle Response: The Interim RAP will incorporate this comment. 5. Page 4, Section 3.1.6,Waste Discharge Requirements: The new NOA is tentatively scheduled to be issued at the end of February 2015. Revise this section accordingly. Nestle Response: The Interim RAP will incorporate this comment. 6. Page 5, Section 3.1.8, Health and Safety Plan: Add a reference to the Health and Safety Plan here and add this document to the Section 7 References. Nestle Response: The Final RAP will incorporate this comment. 7. Page 5, Section 3.2,Monitored Natural Attenuation: The first sentence of this section implies MNA is an accepted component of the groundwater remedy. Per General Comment 2 above, this remedy component has not received approval from Central Valley Water Board staff. Revise this sentence accordingly. Nestle Response: The Final RAP will incorporate this comment. 8. Page 6, Section 3.3.2,Destruction of Conduit Wells: This section states that Nestle "identified several conduit wells and abandoned or modified those wells." Revise this section to identify these wells and provide a figure that shows all of them. Nestle Response: The Final RAP will incorporate this comment. Has Nestle identified any other"conduit" wells that are still located within or just outside the area of impacted groundwater? If so, Nestle needs to contact these well owners in 2015 to initiate discussions on decommissioning their wells. Nestle may also need to provide suitable replacement water supplies to these well owners. Nestle Response: The only other known conduit wells identified are outside of the area impacted by TCE. These former supply wells are PW-4 and PW-5, and are located amidst the high TDS groundwater on the Diamond Pet Food property. Nestle has informed the Water Board about the existence of these conduit wells.