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TABLE2 SUMMARY OF HISTORICAL GROUNDWATER GAUGING AND LABORATORY ANALYTICAL DATA Circle K Store No. 08671 8606 Thornton Road, Stockton, California TOC App ste Tp f Depth to Gm d ater TPH-G. Berurne Toluene Etbylbe�ene Total Xylenes MTDE TANTE TBA DiPE ETBE Edun01 C I ed S PSH FEE (pg/L) EDB (ppjL) Well EI Grcondw Elevation (µ.9f,) (µBIL) (pg/L) (µVQ (µell-) (µ81L) (pg/L) 61µ/L) Welt) ' (pg(L) (µy/L) Sample Dat n To a1 W 11 Depth Ele Tl(ton) Number ([eMSL)ve (fee[belaw (feat abote MSL) (RTOC) ry (feet above TOL) MOL) (ton) TOC) MSL) EPA Method 82608 MW-3 3/28/2007 1167 45 -11 .33 32. 11 -13.44 0.00 220 N1 <0,50 ND<050 ND<0.50 NO<I0 460 1.7 16 NDecUo ND<0.50 ND<0.50 ND<0.50 ND<I000 MW-3 4/260007 13.6] 45 -1133 31.42 -17.75 0.00 220 ND<0.50 2.8 0.61 3.5 300 1.2 ND<lo ND<50 ND<O 50 ND<0.50 ND<0.50 ND<50 'v16V-3 8/9/2007 13 67 45 -1133 34.50 -20.83 0.00 3DO ND<0.50 ND<.50 ND<O50 ND<p.50 430 2.0 ND<10 ND<O.50 ND<.50 ND<O.50 ND<O.5O ND<250 MW-3 1O125/20µ] 13.6] 45 -1133 35.82 -2215 0.00 610 Np<050 NDc0.50 ND<050 ND<D50 940 3.5 ND<10 ND<0.50 ND<D.$D ND<0$D ND<O50 ND250 MW-3 1123/2008 13.6] 45 -11 J3 33.81 -20.14 O00 556 ND<0.50 NI)<0.5o ND<p.50 ND<1.0 TIOµ 4.1 140 ND<O50 ND<0.50 ND<050 ND<O$0 7,0 50 MW-3 5/19/2008 13.67 45 -11.33 32.64 -18.97 DOD 550 ND<1.O ND< O ND<1.0 ND<2O 1100 42 30 Noel,0 leD4I.0 N0<I.0 ND<t.o ND<$pp MW-3 711012006113,67E4545 -11.3J 3445 -20.78 0.00 440 ND<050 ND<0.5o ND<O50 ND<l.o 770 J.6 26 ND<0.50 ND<0.50 ND<O50 ND<.50 Oe MW-3 11/3/2003 45 -11.33 3634 -2261 000 920 ND<50 ND<50 ND<50 ND<10 1400 ND<.0 ND<100 ND<,0 N O ND<O ND<.0 ND<2500 MW-3 2/12/2009 45. -1133 34.95 -21.28 OOD 470 ND<0.50 ND<0.50 ND<050 ND<1.0 1500 44 1400 ND<O50 he 50 ND<O$D ND<0.50 ND<250 MW-3 4/14/200945 4193 33.53 -19.86 000 390 NO<1.O ND<l.o leD<I.O ND<2.0 1100 3.5 72 NI)<1.0 ND MW-3 '1.115/200945 -1133 3455 -20.88 000 520 ND<.0 ND<50 ND<.0 ND<10 460 NI3 0 340 ND< 0 1JD<50 ND<0 ND< 0 N w 00 MW3 IOn 200945 -1133 3645 -2278 000 ED ND<0.50 Np<0.5o Np<O50 ND<I.0 39 ND<0.50 ND<IO ND<O50 ND<O50 ND<O$D ND<0.50 ND< 0 MW-3 2:2010 45 - 11 .33 34.36 -2069 Deno ND<0 ND<0.5o ND<0.50 NO<0.50 ND<IO 18 ND<050 16 ND<050 ND<0.50 ND<0.50 ND<.5D N25MW3 7'112010 45 - 11 .33 3234 -18.67 000 ND<50 ND<050 ND<05o ND<O 50 ND<I0 46 ND<DSD ND<Ip ND<050 ND<050 ND<OS0 ND<050MW-3 1/20/2011 45 -1133 3198 -18.31 0.00 NO<0 ND<0.5o NDc0.50 NDc0.50 ND<1 .o 4.2 NDcD.$D NDc0 ND< 5 . . 0 ND<O50 ND<50 MW-3 Tl5n011 45 - 133 29.]6 - 16.09 0.00 ND<D ND<O50 ND<050 ND<p.50 ND<1.D 0.83 ND<0.50 NO<10 ND<0.50 ND<O50 ND<0.50 ND<O50 ND25o MW4 2/15/1999 13,]2 45 -11.28 29.32 -1560 0.00 0.732 ND ND ND 74.8 leD ND ND ND MW4 3/14'1999 13.72 45 -11 .28 28.18 -14.46 0.00 _ ND ND ND ND 3.7 ND ND ND ND ND MW-4' 8/17/1999 13.72 45 -11.28 31.66 -17.94 0.00 ND ND NO ND ND leD ND ND ND MW-4 11/1/1999 13,72 45 -11.23 33.25 -19.53 000 ND ND ND ND 4.2 NO ND - MW4 2/7/2000 13.72 45 -11.28 30.67 -15.95 0.00 ND ND ND ND 39 ND ND ND ND MW-4 5/1/2000 13.]2 45 -11.28 27.82 -14, 10 0.00 ND ND ND NO 3.72 ND ND ND - MW-4 7/28/2000 13.72 45 -11.28 31,86 -18, 14 0.00 ND ND NO ND ND ND ND ND ND -- - - MW-4 11/27/2000 13.72 45 -11.28 31.56 -Mm 0,00 ND ND ND ND 140 ND DD NO ND - MW-4 1/31/2001 13.72 45 -1128 30.03 -16.31 0.00 _ ND 0.645 ND ND 155 ND ND ND ND ND ND ND MW-4 5/2612001 13.72 45 -11.28 29.39 -15.fi7 ND ND ITO 13.6 ND ND ND ND ND NI) ND MW-4 822/2001 13.]2 45 -11.28 33.06 -1934 0.00 leD<OSO N )<0.50 ND<D50 ND<0.50 230 Nl) ,O ND<200 NDU.O ND<4,0 ND<4,0 ND<4.0 ND<000 MW4 11/20/2001 13.72 45 -11.28 33.53 -19,31 0,00 leD<O.50 D6 ND<050 ND<D.SD 970 ND<.0 ND<100 ND<5.o ND<.0 ND<.0 ND<5.0 M)<e)500 MW-4 3/ 1312002 13.]2 45 -11.28 31 , 14 -17,42 0.00 _ ND2.0 ND<2.0 ND2.0 ND<2.0 910 ND<IO ND<500 ND<lo ND<ID ND<10 ND<IO NO<500 MW4 5/6/2003 13.]2 45 -11.28 3D.56 -16,84 0.00 1200 N9c10 ND<IO ND<IO 'D<l0 1300 ND<14 ND<710 ND<l4 ND<14 ND<14 ND<14 ND<3600 MW4 6/7/2002 13.72 45 -11.28 34.94 -21 .22 0.00 1300 NO<.O ND<5.o ND O ND<IO l20µ ND<20 ND<l000. ND<20 ND<20 ND<o ND<0 ND<5000 MW-4 11/4/2002 13.72 45 -11.28 37. 10 -2338 0,00 ND<000 ND<0 ND<0 ND<0 ND<1o0 I60µ ND<00 ND<I0000 ND<00 ND<200 ND<OO ND<200 ND<50000 MW4 2/3/2003 13.]2 45 -11.28 33.97 -2025 o.00 ND<I000 ND<IO ND<IO ND<IO ND20 19W ND<40 ND<DOO NDc[D ND<40 ND<40 ND<40 ND<I0000 MW-4 5/14/2003 13.72 145 -11.28 31,96 -18.24 0.00 ND<5000 ND<50 ND<D ND<50 ND<100 7900 ND<00 ND<I0000 ND<00 ND200 ND200 teDe ND<50000 MW-4 6/13/2003 13.]2 45 -11.28 36.81 -23.09 0.00 ND2000 ND<20 ND20 ND<20 N5740 3300 ND<80 Np<4000 IW--- ND<80 ND<80 ND<80 ND<2000D MWA 11/14/2003 13.]2 45 -1128 38,95 -25.23 0.00 ND<5000 N9 MW-4 2/1L2009 13.]2 45 -11.28 35.53 1 -21.81 1 000 880 ND<5.0 I N134el.0 111)<5.0 I N )<10 1100 ND<0 I ND<1000 ND<20 ND<20 ND<20 ND<20 ND<5000 MW-4 5/14/2004 13.72 45 1 -11.28 34.]4 -2102 0.00 1100 NM50 ND<.0 ND L1.0 ND<IO 1900 ND<5.0 ND<50 ND<10 ND<.0 ND<5.0 ND<.0 ND<$DD MW4 8/4/2004 13.]2 45 -11 .28 37.73 -24.01 0.00 5000 ND<25 ND<5 ND<25 ND<50 8400 45 ND250 ND<50 NO<25 ND<25 NI)t ND<500 MW4 11/232004 13.72 45 -1128 37.74 -24.02 0.00 8800 ND<25 ND<25 ND<25 ND<50 10000 64 ND<50 ND<50 ND<25 ND<.f ND<25 DID<500 MW-0 1/26/2005 13,72 45 -11 .28 35.02 -21 .30 1 0.00 ND¢500 ND<0.50 ND<R50 ND<O.5O ND<I.0 10000 ND25 ND<250 NDQS ND25 ND<S 1 ND<25 ND<2500 MW4 4/18/2005 13.72 45 -11.28 3237 -18.65 0.00 ND<OO ND<OSO ND<O50 ND<O.5o ND<1.0 1500 8.4 ND<50 N1)<5.0 ND<5.0 ND<,0 1 NDre5.0 ND<50 8071 H istuncrl Gv/ Toelo 13Q 2011 ) Pagc4 oftO ATC PmjarNa. 075.751182781