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� � � 1 Farn,Work Plan to Install Compliance Groundwater Monitoring Wells,Musco World Olive Com an ,Trac ,California The WDR for the surface impoundments (Order No. R512005-0024) requires that the Leachate Collection I and Recovery System (LCRS) be tested to demonstrate that it is operating in accordance with its intended design and the requirements of Title 27 California Code of Regulations. In 2012,the Pond A I LCRS testing was initiated on October 8, completed on December 7 and was reported to the RWQCB in a December 14, 2012 letter prepared by Terraphase with the subject line, 'Pond A 2012 LCRS Testing Report, Musco Family Olive Company,Class II Surface Impoundments,Tracy California"(the"Pond A ' Test Report"). As described in the Pond A Test Report,although two laterals returned more of the injected water than what was observed during the 2011 testing,the total quantity of returned water was less than the RWQCB expectations of 40%.This was the second test in a row that yielded a total ' quantity of water that was less than the RWQCB expectations. Therefore, in a January 24, 2012 meeting with the RWQCB, Musco presented a plan to design and construct a series of new surface ' impoundments that can replace the storage capacity of Pond A and account for any additional storage capacity needed based on an update to the facilities water balance. In a September 17,2013 meeting, Musco presented to the RWQCB its progress at locating additional land to accommodate the proposed surface impoundments.As presented to the RWQCB, by the end of October 2013 or early November 2013, Musco intends to have completed the acquisition of the land directly to the east of the current facility at 17950 Via Nicolo. ' This work plan has been prepared to describe the procedures for installing the compliance groundwater monitoring wells for the proposed surface impoundments. The intent is to install these groundwater ' monitoring wells prior to the construction of the surface impoundments to accommodate a sufficient number of monitoring events prior to the discharge of waste water into the surface impoundments so ' that a baseline data set can be established for each new well. This baseline data set will be used to support an intrawell analysis when assessing compliance with groundwater quality specifications that will be required by the WDR for the new surface impoundments.Three(3)compliance groundwater ' monitoring wells will be installed at the approximate locations shown on Figure 2. The conceptual layout of the proposed surface impoundments are provided on Figure 2 for reference. , Figure 3 has been prepared to illustrate the topography in the area of the groundwater wells.The purpose of each monitoring well is provided below: • MW-33: Upgradient compliance well • MW-34: Downgradient compliance well • MW-35: Downgradient compliance well ' Musco is proposing to use existing groundwater monitoring well MW-10R (Figure 2)at the Musco facility as the western side gradient monitoring well. ' Scope of Work Pre-Field Activities ' A project Health and Safety Plan (HASP)will be prepared in accordance with the activities described in ' this Work Plan.The HASP establishes the site-specific health and safety protocols for staff to implement this Work Plan. Underground Service Alert(USA)will be notified at least 48 hours in advance of Terraphase Engineering Inc. ' Page 2 of 6 1