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Table B-2: Historical Groundwater Measurements and Analytical Results
<br /> DEPTH TO GROUNDWATER
<br /> SAMPLE DATE GROUNDWATER ELEVATION ETHYL-
<br /> LOCATION SAMPLED (Feet b,) (Feet ouU TPH-A TPH-MO TPH-D TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETBE TAME TBA 12-DCA EDB N.,hlhalene
<br /> With.11 8015M 8021B/ S021R/ 8021B/ 8021B/
<br /> 9nvingel0vation EPA MethoA- 8015M 8015M 8015M 8260E 8260B 8260E 8260E 8260B 8260E 82WB 8260B 8260B 8260E 8260B 8260B 8260B
<br /> (Feet out) Woo- None None 100 µg/L' 5 µg/L 1.0 µg/L 150 µg/L 300 µ8/L 1,750 µg/L 13 µg/L None None None 12 µg/L 0.5 µg/L 0.05 µg/L 17 µg/L
<br /> MW-1 05/31/16 3984 1063 NA NA NA 53,00 6.00 3,800 3.000 9.600 960 NA NA NA NA < 50 NA <10
<br /> 12/29/16 4171 2150 8.200 NA <400 60,000 3A0 2200 2.700 7.000 620 NA NA NA NA 5.5 NA 770
<br /> 05/31/17 3647 -1726 11,000 NA <I,000 32,W0 LIM 4.700 1,300 5.300 400 NA NA NA NA < 50 NA MI)
<br /> 11/29/17 3572 -16.51 <400 NA 6.1000 37.000 2A00 6.800 2.100 7.600 400 NA NA NA NA 4.9 NA SIB
<br /> 31.15 05/17/18 3349 .12.34 28,000e NA <,000 27,000 1.900 51000 1,700 6,000 210 NA NA NA NA < 2.5 NA "a
<br /> I0/26/18 33.35 -12,20 24,000e NA 55000 19,N0 1.600 5.300 1300 51100 130 NA NA NA NA < 12 < 12 380
<br /> 05/10/19 29.54 -8,39 <00 NA 2.6000 18.000 11800 6300 1.900 6.300 130 NA NA NA NA < 5.0 < 50 460
<br /> 09/13/19 29.01 -7,86 6.OW4 NA 5600 191000 1.000 3.600 11100 3,400 92 NA NA NA NA < 12 < 12 450
<br /> 11/15/19 29.19 -8.04 3,700" NA 1.9000 23.N0 90 3.100 1.100 3.700 98 NA NA NA NA < 0.50 < 0.50 2.,IN
<br /> 02/2520 29,51 -736 <200 NA 43000 23.00 980 2.500 1200 2,900 93 NA NA NA NA < 12 < 12 540
<br /> OSPS/10 28.15 -7,00 <200 NA 1,6000 191000 1A00 4,100 1500 4.700 120 NA NA NA NA < 5.0 < 50 460
<br /> OV1300 2875 -7.60 <00 NA 3.5000 21100 930 3,400 LIM 3,700 59 50 < 5.0 So = too < 5.0 50 460
<br /> 11/13/10 2972 -8.57 53e NA <200 14.00 860 3.400 1.100 3,800 40 5.0 5.0 5.0 100 50 = SO 390
<br /> 02/1721 29.25 -8AO <_0 NA LIND I 14.W0 1 670 3.0130 1 1.000 396M 34 5.0 < 5.0 50 = I00 5.0 50 370
<br /> 05/20P1 29.60 4.45 <20 NA 2,6000 11.000 SW 3200 1200 3,901) 35 = 0,50 0.500 + 10 -- 050 = 0.50 340
<br /> 08202I 30.69 -9,54 3,800" NA <00 17.W0 890 3.100 1,100 3.500 32 2.5 INAW
<br /> ' 50 25 22.5 670
<br /> II/2A21 3090 .9,75 <00 NA 2,6000 16.00 980 3300 1,100 3.500 44 5.0 100 - 50 - 5.0 540
<br /> 03/10/_ 30.33 -9A8 <00 NA 33000 14,NO 980 4.100 1,400 4,60 35 5.0 too 5.0 50 5"
<br /> 05/202 3065 A.50 <1000 NA 55000 14,N0 00 2.000 740 A20 21 5.0 too < 50 50 470
<br /> 09/09/22 3191 4076 1.600' NA <00 6,500 260 88 240 350 5.1 0,50 0 10 050 0.50 270
<br /> MW-2 04/14/99 4'-.78 =3.33 NA NA 86,WO 90,100 28,900 5.060 11890 11,750 6" < 10 0 < NA NA NA
<br /> 19.45 1^nvoo 43.93 24.48 NA NA 50 57.000 30,000 < 2,500 2.5W 4.000 2500 NA A NA NA NA
<br /> 12/06/01 46.90 -2]45 NA NA NA 110.000 33,000 1200 2.1N 9,8W 6.700 1N 1000 < too NA NA
<br /> 03/29/02 44.31 --24.86 NA NA NA 32.000 27,000 600 IAN 6.60 9900 1N < IN ION < too NA NA
<br /> 05/06/02 4547 -26.02 NA NA NA 90,000 35.000 650 2.40 9.600 5500 50 < 50 Soo < 50 NA NA
<br /> O8/= 47A7 2772 NA NA NA 100.00 36.000 620 3.1W 11300 3LON - 50 < 50 300 100 NA NA
<br /> 11/26/02 4826 -28SI NA NA NA 94.000 40.000 320 2,0N S9W 25,00 S0 < 50 500 1A00NA NA
<br /> 03/07/03 47.17 2772 NA NA NA 42.000 14,000 200 LOW 1,00 15.ON 500 < Soo 5,000 NA NA NA
<br /> 05/W/03 t6.90 -'_]65 NA NA NA 84.000 29.000 390 2,6M 6.900 24,000 500 < 500 5.000 < 500 NA NA
<br /> 09/12 03 48,62 -29.17 NA I NA NA 94.000 28.000 < 250 AIN 3,700 17,00 500 < 500 < 500 < 5.000 < 500 NA NA
<br /> V 19/N 49_ 29.77 NA NA NA 61.000 17,000 < 200 1.400 1.900 24.00 - 500 < 500 < 500 < 5,000 < $00 NA NA
<br /> 03/24IN 4731 .28.26 NA NA NA 93.000 38.000 < 200 2,90 5.400 34,000 -- 500 < Soo < Soo < 5,000 < 500 NA NA
<br /> 06/09/04 4745 =8.N NA NA NA 1 85,000 9960 10,OW 2150 16,000 9.700 Soo < 500 < 500 < 5,000 < Soo NA NA
<br /> OS/23/04 48.75 -29.30 NA NA NA ",No 3.20 3,500 1 3.401, 18.00 660 < 500 < 500 < Soo < 5,000 < 500 NA NA
<br /> V29/04 48.98 29,53 NA NA NA 80.00 3.600 6500 4.100 I8,N0 350 50 < 50 < 50 < Soo j< 50 NA NA
<br /> 03/23/05 48.48 -29.03 NA NA NA 0,00 4,90 6300 41,30 161NO 530 50 < 50 < 50 < 500 < 50 NA NA
<br /> 0N29/05 47.00 27.55 NA NA NA 55500 5380 3.650 4.I0 13.400 720 So < 50 < 50 < Soo NA NA NA
<br /> 0921105 4800 .28.55 NA NA NA 62200 9.470 L030 4,070 11.600 4,670 50 < So < 50 < 500 NA NA NA
<br /> 12/20/05 48,62 1 .29.17 NA NA NA 62200 11,600 6.030 3.50 8.950 30.80 50 1< 50 < 50 < 500 < 50 < 50 NA
<br /> 03/15/06 4642 26.97 NA NA NA 75,700 16,700 6.610 4240 9.890 i2,600 500 < 500 < 500 < 5.000 < $00 < Soo NA
<br /> 06/21/06 43.60 23.95 NA NA NA 66,000 17200 9.010 1.650 10200 37AW 5N < 500 < 500 < 51000 < 500 < 500 NA
<br /> 09/20/06 43 38 --23.93 NA NA NA 87.400 18.000 1,720 3.640 6,830 62,80 500 < 500 < 500 < 5,N0 < 500 < 500 NA
<br /> I JI2/06 4325 23,80 NA NA NA 96,700 19,600 1.010 3,880 50 54,10 5W < 500 < 500 < 5,N0 < 500 NA NA
<br /> 03/20/07 42oO -=55 NA NA NA i6,600 10700 < 400 2,6% 3,020 42.5N 500
<br /> < 500 < 500 < 5,N0 < 500 < 500 NA
<br /> 06/11/07 41.58 2-1 13 NA NA NA 24,900 5.100 < 200 1,100 2,070 37.80 < 5N < 500 < 500 < 5,No < 500 NA NA
<br /> 0925/07 42.25 -21.80 NA NA NA 40500 11,600 < 200 lase 1.460 29,IN SW < 500 < 500 < 5, 0; < 500 < 500 NA
<br /> X:\Project\5000yrj\5960 SJC UST RFQ\5960C County of San Joaquin-SJC Public Works\5960C12\5960C12A GW Monitoring\Data\596OC12 2022Q3 Motor Pool Historical Data.xlsxTable B-2 Historical Data 2 of 11
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