SITE INFORMATION AND CORRESPONDENCE FILE 2

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NOW Page 2 of 4 IWO DES Report(June 16, 2014), and also directed that a 3rd well be installed on the east side of South El Dorado Street. This concurrence is in response to the recommendation in the DES Report(June 16, 2014) and the recent Case review performed by the S WRCB. 2) Well Screen intervals should 20 to 35 feet bgs to capture the 1 st and 2nd sand zones identified in the cross-sections in the DES Report (June 16, 2014). 3) The SJCEHD will provide a directive letter for DES to prepare a Work Plan to guide installation of the 3 new groundwater monitoring wells. DES understands that the SJCEHD letter will also include instructions on the permitting procedures at SJCEHD. 4)In Q1 2014, an extended list of waste oil analytes were reported in MW1. In the upcoming monitoring event, the extended list of waste oil analytes will be performed in MW2. 5)Nuel also indicated that the product in MW2 should be tested to determine its composition (gasoline, diesel, or waste oil). If product is found in other wells, the product in those wells should also be tested. 6)DES will coordinate with Time Qualar from AGE to perform coordinated monitoring of the California Tank Lines Site and Pacific Pride Site on the same day in Q4 2014. Once a date is scheduled, DES will notify Vicki so that an inspection can be arranged. 7) The SJCEHD indicated that conducting an updated land survey of the Pacific Pride Site wells would not be productive since those wells are CMT wells may not provide representative groundwater elevation measurements. 8) Nuel indicated that preparing a Corrective Action Plan is the preferred approach for implementing a remedial action at the Site. This CAP should be prepared after the 3 new wells are installed and more information is obtained about the extent of the product plume and the product cleanup needs. The SJCEHD indicated that remediation will be required based on the product found in MW2 and based on concurrence in the recent SWRCB case review. DES asked if a fixed-base Dual-Phase Extraction (DPE) System similar to the System in operation at the adjacent Pacific Pride Site would be an appropriate approach. The SJCEHD indicated that use of such an approach could be further developed in the CAP. 9) DES asked about the permitting process for repairing damaged wellheads. The SJCEHD indicated that a permit application needs to be processed for wellhead repairs and an inspection will be required. Johnny Yokum manages the permits at SJCEHD. Vicki will provide contact information for Johnny Yokum and the associated permit forms for well installation and for well ll Thanks again for your help in moving this Case forward. If you have any questions or concerns please feel free to contact Andy or me at 760-639-3600. Respectfully, Greg Delson, PG DONAN ENVIRONMENTAL SERVICES, INC. ph: 760-639-3600 fax: 760-639-3603 email:gdna,DESxvz Com 9/11/2014