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Table B-1: Historical Groundwater Measurements and Analytical Results
<br />SAMPLE
<br />LOCATION
<br />top of ca,ng
<br />elevation
<br />DATE
<br />SAMPLED
<br />{ DEPTH TO] GROUNDWATER]
<br />GROUNDWATER ELEVATION
<br />(Feet bgs) (Feet snsl) 11'11-h TPH-MO TPH-D TPH-C BENZENE TOLUENE
<br />ETHYL-
<br />BENZENE XYLENES MTBE DIPE ETBE TAME_ TBA I,2-DCA EDB Naphthalene
<br />MMO
<br />Method 0015NI 0015M 8015M 80I5M 8021B 002113 002IB 00210 02608 02608 626013 02608 826013 02608 826013 8260B
<br />MCL None _ None 56 mg/L 5 ogiL 1.0 pg/L 150 AA_ _ 300 pg L 1.750 e L 111.04L None None None 12 itgiC 0.5 141_ 005 pg,./L
<br />MW-1
<br />19.21
<br />04/14/99 42.51 -23.30 NA NA 240,000 244,000 47,600 48,000 4,280 21,750 46,500 . 100 < 100 < 100 < 500 <50 NA 1,230
<br />12/18/00 43.63 -24.42 NA NA 1,000 220,000 51,000 37,000 5,000 20,900 75,000 NA NA NA NA NA NA
<br />12/06/01 46.91 -27.70 NOT SAMPLED - FREE PRODUCT (0.33 FEET THICK)
<br />03/29/02 44.94 -25.73 N.4 NA NA 270,000 44,000 31,000 6,500 33,1010 34,000 < 21111 < 200 < 200 0 2000 < 200 NA
<br />05/06/02 45.10 -25.89 NA NA NA 230,000 49,000 48,000 4,700 25,000 83,000 < 0 50 50 .0 500 <50 NA \
<br />08/22/02 47.39 -28.18 NOT SAMPLED - FREE PRODUCT (0.41 FEET THICK)
<br />11/26/02 46.45 -29.24 NOT SAMPLED - FREE PRODUCT (0.22 FEET THICK)
<br />03/07/03 47.15 -27.94 NOT SAMPLED - FREE PRODUCT (0.45 FEET THICK)
<br />05/09/03 47.40 -28.19 NOT SAMPLED - FREE PRODUCT (SHEEN)
<br />09/12/03 49.20 -29.99 NOT SAMPLED - FREE PRODUCT (0.50 FEET THICK)
<br />NOT SAMPLED - FREE PRODUCT 0.10 FEET THICK
<br />03/24/04 48.01 -28.80 NOT SAMPLED - FREE PRODUCT (SHEEN)
<br />06/09/04 47.94 -28.73 NOT SAMPLED - FREE PRODUCT (SHEEN)
<br />08/23/04 49.41 -30.20 I NA I NA I NA 1_ 230,000 I 52,000 1 37,000 1 4,900 1 24,000 I 120,000 50 50 50 ,01, 50 NA VI
<br />12/29/04 49.53 -30.32 NOT SAMPLED - FREE PRODUCT (SHEEN)
<br />03/23/05 48.63 -29.42 NOT SAMPLED - FREE PRODUCT (0.05 FEET THICK)
<br />06/29/05 46.70 -27.49 NOT SAMPLED - FREE PRODUCT (SHEEN)
<br />09/21/05 48.36 -29.15 NOT SAMPLED - FREE PRODUCT (0.05 FEET THICK)
<br />12/20/05 48.90 -29.69 NOT SAMPLED - FREE PRODUCT (0.02 FEET THICK)
<br />03/15/06 46.33 -27.12 NOT SAMPLED - FREE PRODUCT (SHEEN)
<br />06/21/06 43.27 -24.06 NA NA NA 80,400 23,600 2,560 6,570 10,400 22,500 < 500 < 500 < 500 0 5,000 < 500 < 500 NA
<br />09/20/06 43.42 -24.21 NA NA NA 169,000 41,500 21,100 3,670 20,400 20,400 <50)) .0 500 <500 <5,0(8) <50(1 --. 500 NA
<br />12/12/06 43.47 -24.26 NA NA NA 215,000 42,100 22,300 4,150 20,900 19,300 0500 <5)0) <500 05,0)10 <50(1 NA NA
<br />03/20/07 42.15 -22.94 NA NA NA 127,000 34,600 15,400 3,400 17,700 13,100 <500 <50)1 <50/) 05.0110 <50)) <500 NA
<br />06/11/07 41.66 -22.45 NA NA NA 151,000 29,700 17,200 3,240 15,600 15,600 <500 <5(10 <50(1 05,0(5) <500 NA NA
<br />09/25/07 42.31 -23.10 NA NA NA 186,000 35,800 25,300 3,810 18,400 42,900 <500 <50)) <5)))) <5,0161 <50)) <500 NA
<br />12/04/07 42.60 -23.39 NA NA NA 197,000 37,200 26,500 4,430 18,800 61,600 <500 < 500 <50)) < 5,000 < 500 < 500 NA
<br />03/31/08 40.70 -21.49 NA NA NA 148,000 25,100 14,400 3,620 14,200 7,650 < 500 < 500 < 500 < 5,000 < 500 < 500 NA
<br />06/09/08 40.70 -21.49 NA NA NA 135,000 30,600 10,400 3,810 8,890 6,200 < 500 < 500 <50(1 < 5,000 <5)0) <500 NA
<br />09/05/08 41.75 -22.54 NA NA NA 34,000 7,810 3,620 580 2,850 8,440 <50 < 50 <50 < 500 < 50 <50 NA
<br />11/20/08 42.51 -23.30 NA NA NA 217,000 36,000 26,600 2,590 20,500 91,500 <5)) <50 <51) 05)10 <5)) <50 NA
<br />02/24/09 41.87 -22.66 NA NA NA 156,000 36,100 14,600 3,580 15,100 15,800 < 100 < 100 < 100 < 1,000 1,980 < 100 NA
<br />05/13/09 41.36 -22.15 NA NA NA 168,000 34,100 24,500 2,950 16,500 53,000 NA NA NA NA NA NA NA
<br />10/20/09 43.08 -23.07 NA NA NA 562,000 72,000 72,600 9,170 54,100 93,200 NA NA NA NA NA NA NA
<br />05/14/10 41.21 -22.00 NA NA NA 95,300 16,400 9,630 3,200 12,000 8,720 NA NA NA NA NA NA NA
<br />04/29/11 39.10 -19.89 NA NA NA 110,000 20,000 9,300 2,600 12,000 7,000 NA NA NA NA NA NA NA
<br />06/17/11 38.53 -19.32 NA NA NA 98,000 24,000 11,000 2,700 11,000 6,900 NA NA NA NA NA NA NA
<br />11 01 11 38.24 -19.03 NA NA NA 120,000 23,000 10,000 2,700 13,000 9,800 NA NA NA NA NA NA NA
<br />04.17 12 37.32 -18.11 NA NA NA 120,000 15,000 15,000 2,200 11,000 14,000 NA NA NA NA NA NA NA
<br />09/28/12 37.29 -18.00 NA NA NA 120,000 9,900 18,000 2,100 16,000 11,000 NA NA NA NA NA NA NA
<br />03/20/13 36.37 -17.16 NA NA NA 90,000 8,300 13,000 3,100 16,000 6,600 NA NA NA NA NA NA NA
<br />12/09/13 37.55 -18.34 NA <620 <120 80,000 7,100 21,000 3,200 17,000 3,800 NA NA NA NA <25 NA 1,300
<br />04/04/14 36.96 -17.75 <50 <250 <50 76,000 7,300 9,100 2,300 12,000 2,700 NA NA NA NA < 25 NA 1,900
<br />11/07/14 36.69 -19.48 <200 <1000 <200 110,000 6,400 11,000 3,600 16,000 3,600 NA NA NA NA < 25 NA 1,100
<br />05/15/15 38.30 -19.09 NA NA NA 85,000 5,300 8,200 2,800 12,000 1,400 NA NA NA NA NA NA 160
<br />all by 8260B 11/16/15 40.00 -21.59 NA NA NA 82,000 4,800 4,800 2,700 10,000 1,100 NA NA NA NA < 50 NA 800
<br />05/31/16 39.84 -20.63 NA NA NA 53,000 6,000 3,800 3,000 9,600 960 NA NA NA NA < 50 NA <1.0
<br />12/29/16 41.71 -22.50 8,200 NA <68 _ 40,000 3,400 2,200 2,700 7,000 620 NA NA NA NA 5.5 770
<br />X:\ Project\5000_prj \5960 SJC UST RFQ \ 5960C County of San Joaquin - SJC Public Works \596006 \Reports \Work Plan /App B Backgroundt20161229_5960C5A Historic Data.xlsxTable B-1
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