SITE INFORMATION AND CORRESPONDENCE FILE 2

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M Nomellini Property - 2w January 23 , 2012 �I Monitoring Well Information Well Designation Date Installed Screen Interval Depth to Water (feet bgs) (feet bgs) (May 2011 MW-1 Feb 91 33-53 13. 50 MW-2 Feb 91 32-52 MW-3 Feb 91 30-50 13.40 MW4 Apr 92 30-45 13 .66 MW-5 Apr 92 3045 14. 00 MW-6 May 92 2540 13.23 MW-7 Dec 94 2545 13. 72 MW-8 Dec 94 24-44 13.47 MW-9 Dec 94 2242 12. 25 MW-10 Jun 06 55-60 13 .46 MW-11 Jun 06 40-60 14 . 69 MW-12 Jun 06 55-60 13 . 57 MW-13 Nov 07 104- 114 14 . 10 MW- 14 Nov 07 95-105 13. 57 MW- 15 Nov 07 105- 115 13 . 82 Petroleum Hydrocarbon Constituent Concentration Contaminant Soil m /k Water u /L WQOs Maximum Latest Maximum Latest (ug/L) (Sep 2011 TPHg NA NA 360 , 000 30 , 000 5 Benzene NA NA 94, 000 41600 0. 15 Toluene NA NA 140 , 000 41400 42 Eth ( benzene NA NA 133000 100 29 Xylenes NA NA 96 , 000 31400 17 MTBE NA NA7,400 54 5 TBA NA NA 7, 300 <10 12/1 , 260a 112-DCA NA NA 450 94 0 . 5 NA: Not Analyzed, Not Applicable or Data Not Available mg/kg : milligrams per kilogram , parts per million ug/L: micrograms per liter, parts per billion WQOs: Water Quality Objectives * According to GeoTracker, wells California Department of Public Health Notification Level/ Response Level Site Description The Site is located at 1045 West Charter Way in Stockton, California and is an active maintenance area. The Site is bounded by businesses to the west, north and east and West Charter Way to the south . The surrounding land use is commercial . Site History/Assessments In August 1988, soil contamination was identified during the removal of USTs . To date , 15 monitoring wells have been installed and monitored regularly. A Site map showing the location of the former USTs , monitoring wells and groundwater level contours is provided at the end of this five year summary.