|
TABLE 2
<br />Summary of Groundwater Analytical Data - Shallow Wells
<br />JM Equipment
<br />1245W. Charter Way
<br />Stockton. California
<br />Project No. 507.2
<br />Wells Date Benzene Toluene Ethyl Total TPH N1tBE DIPE ETBE TAME TBA Ethanol Methanol 1,2 DCA EDB
<br />Benzene Xylenes Gasoline
<br />ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L mg/L ug/L ug/L
<br />OW-2 09/29/11 3,400 890 2,100 8,700 32,000 73
<br />10/28/11 2,600 550 1,500 5,700 25,000 50
<br />11/28/11 1,900 470 1,200 4,100 17,000 29
<br />12/29/1 I 1,800 550 1,500 5,100 22,000 39
<br />01/27/12 2,500 570 1,700 5,600 27,000 33
<br />02/28/12 1,700 330 1,100 3,700 18,000 35
<br />03/29/12 3,000 740 2,300 8,100 31,000 34
<br />04/16/12 Not Sampled
<br />04/30/12 2,700 450 1,500 6,800 14,000 42
<br />05/31/12 1,800 470 1,500 5,700 22,000 25
<br />06/28/12 1,400 440 1,500 5,400 25,000 23
<br />07/30/12 2,800 680 1,200 6,200 23,000 17
<br />12/23/13 470 41 790 1,500 14,000 14
<br />03/21/14 680 57 880 1,800 22,000 19
<br />06/18/14 72 14 550 1,000 11,000 6.9 ND<(0.5) ND<(0.5) ND<(0.5) ND(<10)
<br />09/16/14 52 12 310 630 4,600 4.2 ND<(0.5) ND<(0.5) ND<(0.5) ND(<10)
<br />12/19/14 500 87 1,300 3,300 16,000 8.1 ND<(0.5) ND<(0.5) ND<(0.5) ND(<10)
<br />03/26/15 64 9.8 240 500 3,700 6.4 ND(<2.5) ND(<2.5) ND(<2.5) ND(<50)
<br />06/17/15 43 5.8 150 270 3.100 3.7 ND<(0.51 ND<(0.5) ND<(0.5) ND(<10)
<br />09/09/15 200 62 620 1,700 7,800 ND<5 ND(<5) ND(<51 ND(<51 ND(z100)
<br />12/23/15 81 20 420 1,100 8,200 2.8 ND(-e5) ND(e5) N13(<5) ND(<100)
<br />05/24/16 120 21 380 930 4,900 5.0 ND(<5) ND(e5) ND(e5) ND(<100)
<br />09/29/16 40 6.1 200 380 4,100 ND<2.5 ND(<2.5) ND(<2.5) ND(<2.5) ND(<50)
<br />12/22/16 34 4.8 130 260 2,700 ND<2.5 ND(<2.5) ND(<2.5) ND(<2.5) ND(<50)
<br />05/26/17 230 20 310 680 5,500 6.4 ND(<2.5) ND(<2.5) ND(<2.5) ND(<50)
<br />06/26/17 Not Sampled
<br />12/12/17 330 30 450 790 6,300 3.9 ND(c1) I ND/<t) ND(<11 ND(<20)
<br />OW-3 09/29/11 2,400 250 1,600 3,100 17,000 110
<br />10/28/11 5,800 510 2,300 5,800 33,000 140
<br />11/28/11 5,700 490 2,000 5,100 28,000 74
<br />12/29/11 5,600 600 2,100 5,400 35,000 150
<br />01/27/12 5,700 540 2,100 5,000 34,000 110
<br />02/28/12 4,900 680 1,800 4,600 28,000 160
<br />03/29/1 2 4,900 210 940 2,200 13,000 38
<br />04/16/12 Not Sampled
<br />04/30/12 4,600 350 1,800 4,000 26,000 120
<br />05/31/12 6,600 530 2,200 5,400 31,000 130
<br />06/28/12 5,600 500 1,600 4,900 36,000 150
<br />07/30/12 7,300 650 2,400 5,700 31,000 150
<br />12/23/13 1,400 170 980 1,500 15,000 59
<br />03/21/14 5,700 250 1,400 2,800 35,000 97
<br />06/18/14 1,700 130 880 1,400 12,000 48 ND/<0.5) ND(<0.5) ND(<0.5) ND(<101
<br />09/16/14 2,200 130 1,200 2,200 15,000 49 ND(<0.5) ND(<0.5) ND(<0.5 1 NID(< 1 0)
<br />12/19/14 2,600 110 1,300 2,400 12,000 36 ND/<0.5) ND(<0.5) ND(<0.5) ND/<10/
<br />03/2 6/1 5 120 77 720 1,500 13,000 21 ND(e5) ND(e5) ND(<5) ND(<100)
<br />06/17/15 950 42 500 830 6,600 15 ND(<12) ND(<12) ND(e12) ND/e250)
<br />09/09/15 2,100 400 1,900 4,600 31,000 ND(25) ND(25) ND(<25) ND(e25) ND(<500)
<br />12/23/15 990 37 490 730 9,300 12 ND(<2.5) ND(<2.5) ND(<2.5) ND(S0)
<br />05/24/16 600 30 380 470 3.800 9.0 ND(S) ND(e5) ND(e5) ND(<100)
<br />09/29/16 1,100 45 730 740 8,200 18 ND(<51 ND/e.5) ND(<51 ND(<100)
<br />12/22/16 1,400 52 770 750 8,500 19 ND/<5) ND(e5) ND(<5) ND(<100)
<br />05/26/17 1.100 45 660 880 6,000 20 ND(<5) ND(e5) ND(<5) ND(<100)
<br />06/26/17 Not Sampled
<br />12/12/17 470 13 360 240 3,300 ND/d0) ND(e10) I ND/d0) ND/<10) ND(<200)
<br />Notes:
<br />ND = non-detect above laboratory reporting limits
<br />ng/I = micrograms per liter
<br />TPH = total petroleum hydrocarbons
<br />MtBil = Methyl tert-Butyl Ether
<br />1)11'E = Diisopropyl Ether
<br />ETBE = Ethyl ten-Butyl Ether
<br />TAME = teo-Amyl Methyl Ether
<br />TBA = tert-Butyl Alcohol
<br />1.2 - DCA = 1,2-Dichlomethane
<br />EDB = Ethylene Dibromide
<br />Ground Zero Analysis, Inc. 12 of 12 5/9/2018
|