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• TABLE A(continued)
<br /> Constituent: B T E X MTBE TPH-G
<br /> EPA Method: (602)/ (602)/ (602)/ (602)/ (602)1(8260)1 503011,UFT
<br /> (8021 B) (8021 B) (8021B) (8021 B) (80216)
<br /> Detection Limits: 0.3 0.3 03 0,6 1.0 0.05
<br /> Ag/L pg/L µg/L ug/L µg/L mg/L
<br /> SNI-1 1/16/1997 41,000 17.000 3,300 6,200 (1,4001 120
<br /> 1/15/2000 1,100 34 120 250 1,10Ov 4.1
<br /> 7/212002 210 3,0 31 TIO 1,000 1.6
<br /> SV-2 4123/1998 1 49,000 66,000 3,200 17,000 26,000'v :I_ _�j
<br /> 270
<br /> 7/2/2002 1 53,000 1 36,000 5,100 24,000 I c 4,000 1 190
<br /> SV-3 7/18/1997 71,000 73,000 3,900 19,000 j35,0001 280
<br /> 10/14/1999 9,600 2,100 440 1,400 14,000* 25
<br /> 7/2/2002 22,000 8,700 2,000 7,900 29,000 97
<br /> SV-4 7/22/1998 71,000 47,000 1,700 9,400 170,000*v 390
<br /> 7/11/2000 5601' 1101 341 601 46,0001 0.8
<br /> 7/2/2002 73,000 62,000 4,700 19,000 740,000 300
<br /> SV-5 10122!]997 55,000 j 73,000 3,900 19,000 37,00Vv 290
<br /> 7/2/2002 53,000 58,000 5,700 29,000 19,000 260
<br /> SV-6 4121/]999 65,000 27,000 2,800 13,000 8,600*v 200
<br /> • 7/2/2002 36,000 13,000 2,900 8,000 6,000 110
<br /> SV-7 8/1/1996 91,000 75,000 3,000 18,000 7,800 360
<br /> 10123/1998 90,000 77,000 3,300 18,000 1,800*v 360
<br /> 7/2/2002 73,000 57,000 4,300 22,000 <4,000 250
<br /> SV-8 1/21/1998 87,000 67,000 1 3,200 17,000 6,400*10 1 310
<br /> 7/2/2002 76,000 45,000 4,100 20,000 5,500 1 1,000
<br /> SV-9 412!1997 25,000 ND 2,300 1,900 79,000 53
<br /> 4/1 212 000 ND(150) ND(150) ND(150) ND(300) 9,700* ND(25) --7
<br /> 7/2/2002 35 7.2 5.4 11 3380,000
<br /> ND=none detected at or above laboratory reported detection limit l3j,E,X-benzene,toluene,ethyl benzene,and xylene
<br /> ND X=none detected to a leve(of X. TPH-G=total petroleum hydrocarbons,quantified as gas
<br /> ! -detection limit raised due to elevated pe(/Weum hydrocarbon result, MTBE-methyl tertiary butyl ether
<br /> NA=not tested for this analyte
<br /> (x1=EPA Method 602 analysis indicates a concentration of x;result is not confined by EPA Method 8260,however.
<br /> future analysis by EPA Method 8260 may indicate that MTBE is not present
<br /> v=Other oxygenates/additives were analyzed by EPA Method 8260 and were not detected at or above the laboratory reported detection limits.
<br /> *=as of the fourth quarter 1999,MTBE was analyzed by EPA Method 602; groundwater monitoring for gasoline oxygenatesiadditives
<br /> other than MTBE was discontinued.
<br /> l=as of the third quarter 2000,MTBE and BTEX are analyzed by EPA Method 80218
<br />
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