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Mr. Johnnie Tucker <br /> California Regional Water Quality Control Board, Central Valley Region <br /> 13 January 2026 <br /> Page 2 <br /> Figure 1 : Groundwater Elevations at MW-3, MW-4, MW-5 <br /> 35 --- <br /> I • MW-3 <br /> -E 30 • • _ <br /> Q ♦ MW-4 <br /> aa) 25 - _. _.___._ <br /> LL <br /> 0 20 -i.. _�_. _ ....... MW-3 Well <br /> --Ij----- -- � ---- ----- ---- - ._E Screen Bottom <br /> ----- MW-4 Well <br /> ......•.... ♦. .♦ AI.Rl.f„ 'Rlll�#. , R •#,#J.# f •.R...J.#.J. J.S�J, LRI.R! .J.l,L!!.__ <br /> W 15 ""'' Screen Bottom <br /> i i <br /> — — —MW-5 Well <br /> ca 10 �, -- — -i--- _� - Screen Bottom <br /> - - — — - - <br /> 5 - <br /> I <br /> 0 <br /> The information summarized in this letter is intended to satisfy the requirement to submit a <br /> Groundwater Monitoring Network Evaluation Report. A Monitoring Well Installation Work Plan (MWISP) <br /> is being prepared for the replacement wells. The MWISP will include the following: <br /> • General site plan and proposed well locations <br /> • Proposed drilling methods <br /> • Proposed well construction and development techniques <br /> • Proposed survey needs <br /> • Initial well sampling plan in compliance with the Monitoring and Reporting Program (MRP) 95- <br /> 097. <br /> • Proposed time schedule for well installation <br /> The MWISP will be submitted to the CRWQCB in early February 2026, and well installation will be <br /> scheduled for late 2026. If you have any questions about this letter or the proposed plan, please let me <br /> know and we can schedule a call to discuss. <br /> Sincerely,.f�--- <br /> Ryan Dean <br /> General Manager, The Wine Group <br /> Enclosure: Attachment A—Groundwater Elevation Map, July 2025 <br /> cc: Brendan Kennny, CRWQCB <br /> Kyle Schmidt, The Wine Group <br /> Margaret Wild, Kennedy Jenks <br />