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Rain Water Car Wash - 2 - 8 June 2016 <br /> 420 Yosemite Ave, Manteca <br /> San Joaquin County <br /> 2. In the Work Plan, AGE does not specify which water bearing zones will be sampled, but <br /> merely states that grab groundwater samples will be collected from "each targeted <br /> zone", and that "depth of sampling will likely adhere to previous depths". Please collect <br /> grab groundwater samples from water bearing zones A (18-50 feet bgs), B (50-65 feet <br /> bgs), C (65-115 feet bgs), and D (115-133 feet bgs) in each of the six (6) CPT boring <br /> locations. Please field-adjust the total depth of the borings if needed in order to properly <br /> target the D zone. Additionally, grab groundwater samples should be collected from <br /> permeable zones (i.e. sand zones rather than clay units) within the depth interval. <br /> 3. In order to determine if TPHg present is a result of TCE/PCE, please request that the <br /> laboratory identify and report all peaks identified on the chromatogram for all collected <br /> grab groundwater samples. <br /> 4. Please submit by 15 September 2016 a Summary Report with an updated Site <br /> Conceptual Model (SCM). This report should include a summary of work performed as <br /> well as new boring logs, cross sections parallel and perpendicular to groundwater flow <br /> direction, and the extent of MTBE impacts in groundwater. <br /> 5. While the Summary Report and SCM was originally requested to be submitted along <br /> with the 2Q16 Groundwater Monitoring Report (GMR), please submit the 2Q16 Semi- <br /> Annual GMR under separate cover by 30 July 2016. <br /> 6. During the 4Q16 sampling event, please sample all CMT wells, including zones A <br /> through F, and request that the laboratory identify and report all peaks on the <br /> chromatogram, and include these results in the 4th quarter 2016 Semi-Annual <br /> Groundwater Monitoring Report due 31 January 2017. <br /> 7. The groundwater analytical Electronic Data Files (EDFs) for wells MW-11A, MW-11 B, <br /> MW-12A, MW-12B for the 15 December 2014 sampling event were uploaded to <br /> GeoTracker with incorrect Field Point Names (FPNs). Data for MW-11A and MW-11 B <br /> for this event were both uploaded under the FPN "MW-11", and data for MW-12A and <br /> MW-12B for this event were uploaded under the FPN "MW-12". Please resubmit these <br /> data under the correct FPNs and include GeoTracker upload confirmation in the report <br /> due 15 September 2016. <br /> You may contact the GeoTracker Help Desk for assistance at 866-480-1028, or by email at <br /> geotracker(a)_waterboards.ca.gov, if needed. <br /> In summary Central Valley Water Board staff expect to receive the following: <br /> • By 30 July 2016 please submit the Second Quarter 2016 Semi Annual Groundwater <br /> Monitoring Report <br /> • By 15 September 2016 please submit the Summary Report and updated Site <br /> Conceptual Model. <br /> • By 31 January 2017 submit the Fourth Quarter 2016 Semi-Annual Groundwater <br /> Monitoring Report <br />