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TABLE 1 <br /> SUMMARY OF GROUNDWATER MONITORING AND ANALYTICAL RESULTS <br /> Gardner Property,Thornton,CA <br /> Page 7 of 7 <br /> measured in feet MSL Reported in u /I <br /> Well ID Date Wellhead Depth to G W Benzene Toluene Ethyl Xylenes TPHg MTBE Fuel Dissoved <br /> Elev Water Elev Benzene EPA 8020 bx enates Oxygen <br /> Muni 10/29191 NS NM NM <0 30 <0 30 <0 30 <0 30 <30 <br /> Well 12103/92 NS NM NM <05 <0 5 <G5 <0 5 <50 -- <br /> 03129l96 NS NM NM <0 5 <05 <0 5 <05 <50 — <br /> 06l28196 NS NM NM <0 5 <0 5 <05 <0 5 <50 — - <br /> 10104196 NS NM NM <0 50 <0 50 <0 50 <0 50 <50 — <br /> 12/17/96 NS NM NM <0 5 <0 5 <G5 <0 5 <50 — — <br /> 03/25/97 NS NM NM <0 50 <0 50 <0 50 <0 50 <50 -- <br /> 06/25197 NS NM NM <0 5 <0 5 <0 5 <05 <50 — - <br /> 09/18/97 NS NM NM <05 <0 5 <0 5 <0 5 <50 - <MDLs <br /> 12/16/97 NS 16 90' NS <0 5 <05 <05 <2 <50 — <br /> 03l20198 NS 11 51' NS <0 5 <0 5 <0 5 <2 <50 <5 <MDLs <br /> 06130/98 NS 21 92' NS <050 <0 50 <0 50 <0 50 <50 — _ <MDLs <br /> 09/29/98 NS NM NS <0 50 <050 <050 <0 50 <50 — <br /> 12/23/98 NS NM NS <0 50 <0 50 <050 <050 <50 <2 5 - <br /> 04/05199 NS NM NS <0 50 <0 50 <0 50 <0 50 <50 <5 <br /> 07/09/99 NS NM NS <050 <0 50 <0 50 <0 50 <50 <2 5 <br /> 10/07/99 NS NM NS <0 500 <0 500 <0 500 <0 500 <50 0 — — <br /> 12/28/99 NS NM NS <0 500 <0 500 <0 500 <0 500 <50 0 -- <br /> 03121100 NS NM NS <0 500 <0$00 <0 500 <0 500 <50 0 <25 - <br /> 07/13/00 NS NM NS <0 500 <0 500 <0 500 <0 500 <50 0 __ -- <br /> 09/27100 NS NM NS <05 <0 5 <0 5 <0 5 <50 <MDLs <br /> 12120/00 NS NM NS <05 <0 5 <0 5 <05 <50 <5 0 <br /> 03/29/01 NS NM NS <0 5 <0 5 <05 <05 <50 <5 0 <br /> 06118/01 NS NM NS <0 5 <05 <o5 <05 <50 <5 0 - <br /> 09/24/01 NS NM NS <0 5 <0 5 <0 5 <0 5 <50 <50 — <br /> 01115/02 NS NM NS <0 5 <05 <0 5 <1 0 <50 <5 0 - <br /> 04103l02 NS NM N5 1 <05 1 <05 1 <05 I <10 <50 <5 0 <br /> Notes <br /> ft MSL = feet, Mean Sea Level, assuming ground surface datum is 10 feet above MSL(USGS 7 5 minute Thornton Quadrangle) <br /> ug/I = micrograms per liter or parts per billion <br /> < = not detected at or above Stated Method Detection Limit(MDL) <br /> not sampled/not analyzed <br /> TPHg = Total Petroleum Hydrocarbons as gasoline analyzed by EPA Method 5030/8015 <br /> Benzene by EPA Method 8020 <br /> Toluene by EPA Method 8020 <br /> Ethylbenzene by EPA Method 8020 <br /> Total Xylenes by EPA Method 8020 <br /> Methy t butyl ether(MTBE)by EPA Method 8020 unless noted <br /> NM = Not Monitored <br /> NS = Not Surveyed <br /> = measurement collected from top of sounding tube <br /> Fuel Oxygenates by EPA Method 8260 includes ethanol,t butanol MTBE DIPE ETBE and TAME See Laboratory Data Sheets for <br /> MDLs <br /> Dissoved Oxygen by EPA Method 360 1 <br /> "MTBE by EPA Method 8260 <br /> W�62582%tA8LE$\tA8LEGW.Is[8/21/2CO21 <br />