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closed and that the duplicate listing on GeoTracker is an artifact of having information from two programs feed into the GeoTracker system; she indicated that she will work to have the second listing changed to a status of "closed." The following documents available from GeoTracker appear pertinent to the current investigation: • Limited Subsurface Investigation Report prepared by Advanced GeoEnvironmental (AGE), dated August 7, 2008. The report describes the excavation of 13 soil borings for the collection of soil and grab ground water samples. Locations B3 through B6, B8, B9, B11, and B12 were located on the Site of the current investigation. Dicamba was detected in sample 136-3 (three feet depth) at a concentration of 0.002 mg/kg. Dinoseb was detected in samples 136-3, 68-1, and 138-3 at concentrations of 0.005 mg/kg, 0.039 mg/kg, and 0.029 mg/kg, respectively. No ground water samples were collected on the Site of the current investigation. Those collected on the adjacent land to the west were found contain 1,3- dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichlorobenzene, diuron, 2,4- D, and dicamba. AGE concluded that "the eastern portion of the property... is safe to begin redevelopment." • October 2008 letter from Regional Water Quality Control Board: "Review of Limited Subsurface Investigation Report, Trinkle & Boys." The letter states that 2,4-D, dicamba, and dinoseb were detected in the soil of the Trinkle & Boys property and concludes that "the portion of the property that you wish to develop with residential units does not contain pesticide residuals in soil that would impede residential development." Based on detections of 1,3-dichlorobenzene, 1,2-dichlorobenzene, 1,4- dichlorobenzene, diuron, 2,4-D, and dicamba in grab groundwater samples (west of the current Site), the Regional Board recommends the installation of three groundwater monitoring wells. • Quarterly Report — First Quarter 2010 prepared by AGE, dated March 2010. This report discusses the testing results from a February 2010 sampling event at three monitoring wells AGE previously installed on the Trinkle & Boys property, west of the current Site. The report also appears to summarize previous sampling events, though the language is unclear. It concludes that "analytes were not reported above laboratory reporting limits in any of the ground water samples collected during the November 2009 sampling event, for a total of four sampling events." • September 2010 letter from Central Valley Regional Water Quality Control Board, Monitoring Well Destruction Work Plan. This letter states that "organophosphate pesticides, carbamates, urea compounds, and volatile organic compounds were not detected in any of the three monitoring wells in any of the four quarters" of monitoring. It concludes that "additional LOGE 1506 8