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'10TES:
<br />Wells & Borings were surveyed on October 25, 2011.
<br />Horizontal positions recorded by conventional total station
<br />survey methods, from GPS-RTK established site control points.
<br />Vertical elevations surveyed by digital leveling loop methods.
<br />established by GPS-RTK observations of NGS Benchmarks.
<br />Oakland, CA
<br />SWMU 21
<br />[in SITE PLAN & WELL LOCATION MAP
<br />PROJECT NO. WO NO. RKV
<br />Er..1.12: 1:30
<br />FIGURE 3 A 99R-4041
<br />1 of 1
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<br />MONITORING WELL AND SAMPLE POINT LISTING
<br />NAD83 Geodetic NAD83 Geodetic CS83 Zn3 NAVD Elevations
<br />PT ID Lot (DO) N / Lat(DMS) N / North/ PVC Rim Grnd
<br />Long (DO) W Long (EMS) W East
<br />MY-09 37.6496038 37 38 58.57364 2060517.9 511.49 511.96 511.9
<br />121.4912747 121 29 28.58882 6274688.8
<br />MY-10 37.6495036 37 38 58.21295 2060481.0 511.01 511.58 511.5
<br />121.4911495 121 29 2E1.13816 6274724.6
<br />HS-3 37. 6493024 37 38 57. 48877 2060407. 6 492, 4
<br />121. 4910847 121 29 27. 90485 6274742. 6
<br />HS-2 37.6493740 37 38 57.74640 2060433.3 493,2
<br />121.4909858 121 29 27.54904 6274771.5
<br />HS-1 37. 6494261 37 38 57. 93394 2060452. 0 489. 6
<br />121. 4909008 121 29 27. 24301 6274796. 3
<br />BASIS OF COORDINATES AND ELEVATONS:
<br />NAD83 Horizontal Feet Coordinates, CCS83 Zone 3, (epoch date: 1991.35),
<br />established by CPS-RTH observations based on NGS Control Station
<br />TRACPORT (PID H55439), with a check into NGS Control Station
<br />CORRAL (PID HS4700). Site locations performed by total station methods.
<br />NAVD88 Vertical Feet Elevations established to site by GPS-RTK observations
<br />based on NGS Benchmark R 1453 (PID A17586), elev = 427.45', and a check
<br />into NGS Benchmarks 0 1453 (PID A17585) and S 1453 (P1D 417587).
<br />Site elevations established by digital level loop survey methods.
<br />2
<br />MONITORING WELL AND SAMPLE POINT LISTING:
<br />NAD83 Geodetic NA1183 Geodet ic CS83 Z3 NAVB88 Elevat
<br />PT ID Lot (DO) N / Lot (DNS) N / North/ PVC R m
<br />Long (OD) Long (DNS) 1,1 East
<br />16-1 37. 6498552 37 38 59. 47865 2060609.9 511.53 511.71
<br />121. 4914284 121 29 29. 14235 6274645.2
<br />MW-2e 37. 6497781 37 38 59. 20117 2060581.3 511.09 511.74
<br />121. 4912516 121 29 28.50590 6274696. 1
<br />MW-3 37. 6498564 37 38 59. 48307 2060610.8 08 512.26
<br />121. 4915715 121 29 29. 65748 6274603. 8
<br />MY-4 37. 6499202 37 38 59. 71284 2060633.4 510, 91 511. 25
<br />121. 4913624 121 29 28. 90478 6274664. 6
<br />MY-5 37. 6499849 37 38 59. 94579 2060657.2 11 510 52
<br />121. 4914469 121 29 29. 20895 6274640. 4
<br />161-6 37.6498016 37 38 59. 28590 2060590. 2 55 511.99
<br />121. 4913654 121 29 28. 91532 6274663. 3
<br />MW-7 37, 6500073 37 39 00. 02642 2060665. 1 509. 59 510. 08
<br />121. 4913681 121 29 28. 92515 6274663.3
<br />MY-8 37. 6497524 37 38 59. 10880 2060572, 2 511. 62 511, 98
<br />121. 4913312 121 29 28. 79230 6274673. 0
<br />* REVISED HORIZONTAL VALUES
<br />MW-1 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8
<br />6/7/04 31,000 6/7/04 <50 6/7/04 690 6/7/04 <50 6/7/04 24,000 6/7/04 <50
<br />9/27/04 39,000 9/27/04 <50 9/27/04 55 9/27/04 <50 9/27/04 dry 9/27/04 <50
<br />12/13/04 20,000 12/13/04 <50 12/13/04 <50 12/13/04 <50 12/13/04 dry 12/13/04 <50
<br />3/14/05 11,000 3/14/05 <50 3/14/05 <50 3/14/05 <50 3/14/05 6,900 3/14/05 <50 3/14/05 1,800
<br />6/13/05 40,000 6/13/05 <50 6/13/05 61 6/13/05 <50 6/13/05 16,000 6/13/05 <50 6/13/05 370
<br />9/26/05 35,000 9/26/05 <50 9/26/05 65 9/26/05 57 9/26/05 dry 9/26/05 <50 9/26/05 610
<br />12/5/05 6,400 12/5/05 <50 12/5/05 <50 12/5/05 <50 12/5/05 dry 12/5/05 <50 12/5/05 400
<br />6/22/06 14,000 6/22/06 <50 6/22/06 85 6/22/06 51 6/22/06 15,000 6/22/06 52 6/22/06 750
<br />8/3/06 2,200 8/3/06 <50 8/3/06 51 8/3/06 <50 8/3/06 8,000 8/3/06 <50 8/3/06 1,000
<br />12/18/06 4,200 12/18/06 <50 12/18/06 <50 12/18/06 <50 12/18/06 dry 12/18/06 <50 12/18/06 390
<br />6/20/07 7,100 6/20/07 <50 6/20/07 <50 6/20/07 <50 6/20/07 dry 6/20/07 <50 6/20/07 380
<br />12/11/07 910,000 12/11/07 <50 12/11/07 <50 12/11/07 <50 12/11/07 dry 12/11/07 <50 12/11/07 290
<br />6/9/08 100,000 6/9/08 <50 6/9/08 <50 6/9/08 <50 6/9/08 23,000 6/9/08 <50 6/9/08 350
<br />12/16/08 89,000 12/16/08 <50 12/16/08 <50 12/16/08 <50 12/16/08 dry 12/16/08 <50 12/16/08 490
<br />4/13/09 45,000 4/13/09 <50 4/13/09 <50 4/13/09 <50 4/13/09 16,000 4/13/09 <50 4/13/09 840
<br />6/23/09 12,000 6/23/09 <50 6/23/09 <50 6/23/09 <50 6/23/09 15,000 6/23/09 <50 6/23/09 330
<br />12/14/09 13,000 12/14/09 <50 12/14/09 <50 12/14/09 <50 12/14/09 dry 12/14/09 <50 12/14/09 330
<br />7/12/10 16,000 7/12/10 <50 7/12/10 50 7/12/10 <50 7/12/10 36,000 7/12/10 <50 7/12/10 2,200
<br />2/7/11 2,700 2/7/11 <50 2/7/11 <50 2/7/11 <50 2/7/11 65,000 2/7/11 <50 2/7/11 760
<br />7/12/11 50,000 7/12/11 <50 7/12/11 73 7/12/11 <50 7/12/11 120,000 7/12/11 <50 7/12/11 3,600
<br />1/31/12 3,400 1/31/12 <50 1/31/12 <50 1/31/12 <50 1/31/12 dry 1/31/12 <50 1/31/12 530
<br />7/31/12 14,000 7/31/12 <50 7/31/12 <50 7/31/12 <50 7/31/12 dry 7/31/12 <50 7/31/12 520
<br />2/27/13 33,000 2/27/13 <50 2/27/13 <50 2/27/13 <50 2/27/13 85.000 2/27/13 <50 2/27/13 460
<br />7/30/13 36,000 7/30/13 <50 7/30/13 210 7/30/13 <50 7/30/13 dry 7/30/13 <50 7/30/13 1,700
<br />4/29/14 12,000 4/29/14 <50 4/29/14 1,900 4/29/14 <50 4/29/14 dry 4/29/14 <50 4/29/14 1,200
<br />10/30/14 6,100 10/30/14 <50 10/30/14 150 10/30/14 <50 10/30/14 dry 10/30/14 <50 10/30/14 620
<br />9/28/15 310,000 9/28/15 <50 9/28/15 250 9/28/15 <50 9/28/15 dry 9/28/15 <50 9/28/15 2.800
<br />12/29/15 200,000 12/29/15 <50 12/29/15 5,200 12/29/15 <50 12/29/15 dry 12/29/15 <50 12/29/15 680
<br />7/22/16 21,000 7/22/16 <50 7/22/16 89 7/22/16 <50 7/22/16 dry 7/22/16 <50 7/22/16 1,200
<br />12/28/16 9,400 12/28/16 <50 12/28/16 160 12/28/16 <50 12/28/16 dry 12/28/16 <50 12/28/16 460
<br />7/31/17 7,200 7/31/17 <50 7/31/17 330 7/31/17 <50 7/31/17 dry 7/31/17 <50 7/31/17 840
<br />12/27/17 6,500 12/27/17 <50 12/27/17 110 12/27/17 <50 12/27/17 dry 12/27/17 <50 12/27/17 560
<br />MW-9 MW-10 MW-2 dry 2004 through 2017
<br />12/5/11 <50 12/5/11 <50
<br />1/31/12 <50 1/31/12 <50
<br />7/31/12 <50 7/31/12 <50
<br />2/27/13 <50 2/27/13 <50
<br />7/30/13 <50 7/30/13 <50 0 10
<br />4/29/14 <50 4/29/14 <50 30 Scale in Feet 20
<br />10/30/14 <50 10/30/14 <50 1' = 30'
<br />9/28/15 <50 9/28/15 <50
<br />12/29/15
<br />7/22/16
<br /><50
<br /><50
<br />12/29/15
<br />7/22/16
<br /><50
<br /><50 GENERAL DYNAMICS - OTS
<br />12/28/16 <50 12/28/16 <50 32727 CORRAL HOLLOW RD, TRACY, CA
<br />7/31/17
<br />12/27/17
<br /><50
<br /><50
<br />7/31/17
<br />12/27/17
<br /><50
<br /><50 CHOW ENGINEERING, INC.
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