Laserfiche WebLink
QUARTERLY MONITORING REPORT APRIL 1997 <br /> CANEPA S CAR WASH <br /> 6210 Pacific Avenue Stockton CA <br /> April 17 1997 <br />' MTBE In groundwater samples collected during this monitoring event was not confirmed using EPA <br /> Method 8260 The laboratory certificates of analyses and chain-of-custody are located In Appendix C <br />' 4 2 Results of Analyses <br /> Gasoline was detected to the groundwater samples from MW-1 at 6 4 mg/L, MW-2 at 12 <br /> mg/L, MW-4 at 0 12 mg/L and SV-9 at 53 mg/L BTEX constituents were detected In groundwater <br /> samples from MW-1, MW-2, MW-4 and SV-9 ranging from 2 9 µg/L to 25,000 µg/L MTBE was <br /> detected In groundwater samples from MW-1 at 120 µg/L, MW-2 at 46 µg/L, MW-3 at 13 µg/L, and <br />' SV-9 at 79,000 µJL TPH-G and BTEX constituents were not detected at or above the reported <br /> laboratory detection limit In the groundwater samples collected from MW-3, MW-5, MW-6, MW-7, or <br /> MW-8 MTBE was not detected at or above the laboratory reported detection limit in groundwater <br />' samples collected from MW-4, MW-5, MW-6, MW-7, or MW-8 The laboratory results are presented <br /> In Table 1, below, and Figure 2, Appendix A <br />' TABLE 1 <br /> Groundwater Analytical Results (April, )1997) <br /> MW-1 through MW-8, SV-9 <br />' B T E X MTBE TPH-G <br /> MONITOR Detection 03 03 03 06 10 005 <br /> NVELL/SAIIPLE DATE Limits— µ9/1 µo/1 ltg/1 µg/l ltg/1 mg/1 <br /> Sample I D <br /> MW-1 4/2/97 1707-M'sVI 412/97 1,600 840 140 440 120 64 <br /> MW-2 4/2/97 1707-N[W2-4/2/97 4 500 960 400 980 46 12 <br /> MW-3 4/2197 1707-h1W3-3/2/97 ND ND ND ND 13 ND <br /> MW-4 4/1/97 1707-k4NV4.4/1/97 ND 29 ND ND ND 012 <br /> N1W-5 4/1/97 1707-MW5-4/1/97 ND ND ND ND ND ND <br /> MW-6 4/1/97 1707-MW6-4/1/97 ND ND ND ND ND ND <br /> MW-7 411197 1707-MW7-4/1/97 ND ND ND ND ND ND <br /> MW-8 4/1/97 1707-MWI-411/97 ND ND ND ND ND ND <br /> SV-9 4/2/97 1707-SV9-4/2/97 25 000 ND 1 500* 2,300 1,900 79 000 53 <br /> !)nit Conv(rcinns 4nah tir�1 <br /> µ911 parts per billion (ppb) B r E X =benzene toluene, ethyl benzene and x)leve <br /> m9A parts pt r million (ppm) TPH-G=total petroleum hydrocarbons, quantified as gasoline <br /> ATTBE =methyl tertiary butyl ether <br /> ND=none detected at or above reported laboratory detection limit <br /> * =none detected to a level of X Detection limit raised due to elevated petroleum hydrocarbon <br /> concentrations <br /> Page -3- <br /> Ia CONDOR <br />