o - Waste Isolation Pilot Plant

More documents

Recommendations

Info

,----.. r---"l l -.J l ~J Blue = Contours Lines of Equal Water-Level Elevation Purple = Site Boundary Black = Flow Lines 1050 1000 , , \ is '" c: ~ :c 00 1:: 0 z 950 900 Saturation Front? 6000 6500 7000 Easting (ft) 7500 8000 Figure 4.2 Equipotential surface in the vicinity of the W1PP Site
[J [J [J u [J [J u u [J [] u [] [] [] LJ U LJ LI [J 4.2.3 Santa Rosa Formation Hydrologic Parameters In order to evaluate the hydrology of the Santa Rosa three parameters must be determined: the saturated area, the saturated thickness, and the porosity of the Santa Rosa Formation. 4.2.3.1 The Saturated Area of Investigation Of the twelve piezometers and three wells installed at WIPP between September 1996 and August 1997, only PZ-8 is dry. In every other monitoring well water is present, indicating that the investigative area bounded by PZ-11 to the north and west, PZ-12 to the south, and PZ-g to the east appears saturated with water (Figure 4.1). The area defined by those boundaries is approximately 80 acres in size. It is also likely that the saturated area is significantly larger than the present 80-acre investigative area, but in order to clearly define the areal extent of water within the Santa Rosa Formation additional boreholes would have to be drilled. Another important factor is that because piezometer PZ-8 is dry, that there maybe a wetting front or saturation front moving away from some source point(s). Typically fluid will move down and through the higher permeable zones (sandstones) and saturating those horizons, followed by saturating the lesa permeable zones (siltstones and mUdstones). These siltstones and mudstones may be discontinuous and/or fractured creating lenses upon which water will move around rather than through (Iensatic nature). Slight changes in permeability, fracturing, and other properties will likely create lenses through which fluid will move preferentially. 4.2.3.2 The Saturated Thickness of the Santa Rosa Formation During the drilling/coring of the twelve piezometers PZ 1-12 and three wells C-2505, C-2506 and C-2507 at WIPP, careful attention was paid in identifying the water bearing horizons within each borehole. In the drilling of C-2505, C-2506, and C-2507 water-bearing horizons appeared associated with unconsolidated greenlsh-gray sandstones. These alterated sandstones varied in thickness ranging from 0.3 to 1.8 feet or more. These sandstones were sandwiched between relatively dry or less than saturated siltstones and mudstones indicating that fractures and/or bedding planes may playa role in transporting fluid from the surface through the Santa Rosa Formation. In drilling of the piezometer boreholes, delineating the fluid producing horizons was more difficult as most of the boreholes were drilled with air and no core was collected. The stratigraphy was based on description of drill cuttings, therefore once a fluid-producing horizon was intercepted the remaining drill cuttings were 69
Page 1 and 2:
u o o o o o o o o c o o o o o o o o
Page 3 and 4:
u o o o o o o o o o o o o o o o o o
Page 5 and 6:
c o o o o o o o o o lJ o o o o o o
Page 7 and 8:
u o o o o o o o o o u o o u o u o o
Page 9 and 10:
o o o o D o o o o o o u o Ground Su
Page 11 and 12:
o II [J o o o o o o II o o o o o o
Page 13 and 14:
u o o u o o o • to obtain data fo
Page 15 and 16:
~ ~5 >- g ~ y SALT WATER f>- EVAPOR
Page 17 and 18:
f) .... 1'- SALT WATER EVAPORATION
Page 19 and 20:
u o u c u D o o D o o o u o o o o G
Page 21 and 22: u o o o o o o u o o o o o o o o o o
Page 23 and 24: u o o o o o o o o o o o o o o o o -
Page 25 and 26: o o o o o o o o o w Z ::>", "'z .«
Page 27 and 28: u o o o o o o Ground Surface 0.0 6.
Page 29 and 30: u o o o o o o o o o o o o o o o o o
Page 31 and 32: u u u u o u o u o o o o u o o u o o
Page 33 and 34: ,------, l ..._· Exhaust Shaft Hyd
Page 35 and 36: -----1 r---' L -' l-__ ~_~ Exhaust
Page 37 and 38: L__ J L_J L~L'C=LJC= I i L . L· l_
Page 39 and 40: L__J L~J r--' 1.-- " ,------, L__ :
Page 41 and 42: ~ Q) 3360 - - Exhaust Shaft Hydraul
Page 43 and 44: Exhaust Shaft Hydraulic Assessment
Page 49 and 50: [J [J o o o o [J o o [J o o o o o [
Page 55 and 56: I ! ~ r--r r---; r--: r--, r--l L.-
Page 61 and 62: [J o EXHAUST SHAFT o [J Elevalian 3
Page 63 and 64: ! \ r j L r----1, L_' L.-J r--! L--
Page 65 and 66: ----- ---- - ----------- o 35~-P:-0
Page 67 and 68: L ...: l__J l ... _: L__J L--l (: c
Page 69 and 70: I -! c= t__-, [ I I . L-J L_! [ .~
Page 71: u u 0 d1. . \o~ .,...,. %Q [J 0- .~
Page 75 and 76: [J o [J o o [J [] [J o o o LJ o [J
Page 77 and 78: £L c2505 o _J c2505 c2505 4 c2505
Page 79 and 80: lJ o U D o D o o u u u U D C D D D
Page 81 and 82: u o [J [J [] D D u LJ u u [] u [] U
Page 83 and 84: u [J [J [J [J o u [J [J [j Santa Ro
Page 85 and 86: o u u u u o U APPENDIX 1: GEOLOGY O
Page 87 and 88: LJ U o LJ D o o o o o APPENDIX 1: G
Page 89 and 90: [] o o o o o o o o (Powers; Ootober
Page 91 and 92: u u u o o o o o o o o u o u u o o u
Page 93 and 94: u o o o D o o o o o o o o oo o o o
Page 95 and 96: ~ o (Powers; October28, 1997) (Geol
Page 97 and 98: [j [J (Powers; Ootober28, 1997) (Ge
Page 99 and 100: u u u u o o o o o [j o o o [J o o u
Page 103 and 104: [j [j o o o o fl U o o o o oo o u o
Page 105 and 106: u o o o o o u D U o [J o [J U o o o
Page 107 and 108: u u o u u o u o o [J o [J o o u o o
Page 111 and 112: u o (Powers; D D o o D o o D D u o
Page 113 and 114: u [J o o D [J o u u o [1 .J lJ [J D
Page 115 and 116: U D D o u [] o u o o o u o o u [J o
Page 117 and 118: u (J (Powers; October28, 1997) (Geo
Page 119 and 120: o o o o o o o o o u o o u u o o o o
Page 121 and 122: u U D D U [] U U U U D U (Powe",; O
Page 123 and 124:
u U D o o o D U o o o uo o o o o o
Page 125 and 126:
o o D o o o D o o o o o o o o o o o
Page 127 and 128:
o u o o u o o o o u o o u o u o o o
Page 129 and 130:
[ [J (Powers; October2B, 1997) (Geo
Page 131 and 132:
u u u o DRILL MAKE/MODEL GEOLOGIC R
Page 133 and 134:
u o o o o o u o o o o [J lJ D U o o
Page 135 and 136:
u o o o o o o o o o o u o o o o o o
show all

o - Waste Isolation Pilot Plant

Create successful ePaper yourself

Delete template?

Save as template?