ARCHIVED REPORTS XR0000808 - Laserfiche WebLink

Home Browse Search

i TABLE 2 Fuel Oxygenates Analytical Data . ARCO Service Stabon No 2186 3212 North California Street Stockton California Well Sample TBA MtBE DIPS EtBE TAME 1,2-DCA EDB Ethanol Number Date F g/L pg/L IJgfL pg/L P VW 3B 11/20/1997 <100 <2 0 <2 0 <2 0 <2 0 —2/1711998 NA NA NA NA NA 6/2411998 <200 <2 0 <2 0 <2 0 <2 0 9/21/1998 310 235 <2 0 <2 0 C2 0 — 12/14/1998 <200 432 <2 0 <2 0 511 - 3/31/1999 <200 <2 0 <2 0 <2 0 <2 0 — 6/11/1999 <200 548 <2 0 <2 0 <2 0 — 9/10/1999 <1 000 1,500 <10 <10 123 — 12/3/1999 <200 262 <2 O <2 0 208 — 4/3/2000 <200 252 <2 O <2 0 <2 0 — 6/22/2000 <200 3 180 <2 0 <2 0 23 — 9/27/2000 NS NS NS INS NS — — =012000 <200 592 <2 0 <2 0 <2 0 3/16/2001 <200 912 <2 0 <2 0 <2 0 — 6/21/2001 <3800 5,000 <77' <77 <77 9/13/2001 <100 90 <2 0 <2 0 C2 0 - — 1 2/1 1=01 <20 200 <2 0 <2 0 <2 0 - 3/1412002 <5 0 26 <0 50 <0 50 <0 50 6/19/2002 21 1 500 <0 50 063 70 28 --9/1212002 <25 140 <2 5 <2 5 <2 5 29 <2 5 <200 12/3/2002 <200 69 <5 0 <5 0 <5 0 61 — 3/11/2003 <100 370 <2 5 <2 5 <2 5 39 <500 6/912003 <4 000 6 900 <200 <200 <200 <100 <20 000 9/1712003 <200 210 <10 <10 <10 23 <7,000 Notes Oxygenates analyzed using USEPA Method B260 This sample was analyzed outside of the EPA recommended holding time z The reported value exceeds the calibration curve but not the linear range < = Below detection limrt for analytical methods used = Raised MRL due to high analyte concentration requiring sample dilution DIPE m Do-isopropyl ether EDB = 1 2 Dibromoethane EtBE = Ethyl tert butyl ether mg/L = Analytical results in micrograms per Mer MtBE = Mothyl tort butyl ether NA = Not analyzed NS = Not sampled TAME = Tart amyl methyl ether TBA = Ten butyl,alcohol Data Qualifier Definitions U The analyte was analyzed for but was not detected above the sample reporting limit. J The analyte was posrtraety identified the associated numerical value is the approximate concentration of the analyte in the sample N The analysis indicates the presence of an analyte for which there is presumptive evidence to make a"tentative identification" NJ The analysis indicates the presence of an analyte that has been"tentatively identified"and the associated numerical value represents its approximate concentration UJ The analyte was not detected above the reported sample reporting limit However the reported reporting limit is approximate and may or may rx represent the actual limit of quantitation necessary to accurately and precisely measure the analyte in the sample R The sample results are rejected due to serious deficiencies in the ability to analyze the sample (i a the presence or absence of the analyte cannot be verified)or the analyte identification has been rejected(i a the presence of the analyte cannot be veritred) NO Not detected above reported detection limit • Page 4 of 4 k IWProcesSV5 BP ARC01021861QuarterW OTFl 0312186 GWMR 3003