ARCHIVED REPORTS_NOTICE OF INTENT FOR INSTALLATION, OPERATION AND MAINTENANCE OF AN OZONE INJECTION GROUNDWATER REMEDIATION SYSTEM

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' Project No.S9183-06-02 July 2,2009 ' Page of TABLE4 SUMMARY OF GROUNDWATER ANALYTICAL DATA-SUPPLEMENTAL SAMPLING PARAMETERS ' FORMER VINTAGE CAR WASH 601 EAST MINER AVENUE STOCKTON,CALIFORNIA WELL' NT NUMBER DATE ACETONE BROMATE CI VOMIIUUMM DISSOLVED OXYGEN t (pg/1) (1118/1) (pg/l) (me) ' GWX-1 2/17/2009 120 <0.0010 <1.0 0.09 GWX-1 2/23/2009 200 <0.0010 <L0 0.13 ' GWX-1 3/2/2009 200 <0.0010 Q.0 0.09 GWX-1 3/9/2009 <100 <0.0010 <1.0 0.11 GWX-1 3/17/2009 73 <0.0010 <1.0 0.10 GWX-I 3/23/2009 39 <0.0010 <1.0 0.11 GWX-1 3/30/2009 340 <0.0010 <1.0 6.833 GWX-1 4/15/2009 <20 <0.0010 <1.0 0.16 GWX-1 5/11/2009 <10 <0.0010 <1.0 0.20 ' Downgradient Observation Wells MW-5 11/10/2008 <5.0 <0.0010 11 - ' MW-5 1/8/2009 <10 <0.0010 10 -- MW-5 2/9/2009 <10 <0.0010 13 2.16 MW-5 2/17/2009 <10 <0.0010 11 2.28 ' MW-5 2/23/2009 <2.0 <0.0010 15 2.28 MW-5 3/2/2009 <10 <0.0010 13 1.94 MW-5 3/9/2009 <10 <0.0010 12 2.43 ' MW-5 3/17/2009 <10 <0.0010 10 2.04 Mµ'-5 3/23/2009 s MW-5 3/30/2009 <2.0 <0.0010 9.1 5.653 MW-5 4/15/2009 <10 <0.0010 12 2.02 ' MW-5 5/11/2009 <10 <0.0010 8.6 1.94 MW-6 11/10/2008 G5.0 <0.0010 1.4 -- M[W-6 1/8/2009 <10 <0.0010 1.4 - MW-6 2/9/2009 <10 <0.0010 1.4 0.43 MW-6 2/17/2009 <10 <0.0010 2.6 0.12 MW-6 223/2009 <2.0 <0.0010 2.8 0.24 MW-6 3/2/2009 <10 <0.0010 3.0 0.42 MW-6 3/9/2009 <10 <0.0010 2.3 0.41 ' MW-6 3/17/2009 <10 <0.0010 1.6 0.16 MW-6 3/23/2009 <10 <0.0010 1.8 0.17 MW-6 3/30/2009 <2.0 <0.0010 2.3 5.77 MW-6 4/15/2009 <10 <0.0010 1.9 0.19 MW-6 5/11/2009 <10 <0.0010 2.3 0.24 ' Notes: TPHg=Total petroluem hydrocarbons as gasoline =Measurement taken in the field using YSI 550A DO Meter mg/I milligrams per liter Z=Car parked on well,unable to sample. ' pgll=micrograms per I ter 3=Measurement taken in the field using rented YSI 85 DO Meter -=Not analyzed <=less than laboratory test method reporting limit 1