SPE-                   PH
                                                           SPE-       CIFIC                 WATER
                                                           CIFIC      CON-                  WHOLE
                                               TEMPER-     CON-       DUCT-     OXYGEN,     FIELD
                                                ATURE      DUCT-      ANCE       DIS-      (STAND-
  WELL NUMBER    STATION   NUMBER     DATE      WATER      ANCE        LAB      SOLVED       ARD
                                               (DEG C)    (US/CM)    (US/CM)    (MG/L)     UNITS)
                                                00010      00095      90095      00300      00400

       1         252505080302501     1/28/98      24        632        639        0.1         7
       2         252624080302901     1/28/98     24.5       647        656        0.1        6.9
       3         252716080290601     1/27/98     24.5       586        586        0.1         7
       4         252842080290501     1/27/98     25.5       604        603        0.1        6.9
       5         252940080261204     1/29/98     23.5       618        627        1.6        6.8
       6         252951080251201     1/29/98      25        615        618        0.8        6.8
       7         254131080234401     2/11/98     24.5       516        503        1.4         7
       8         254156080214601     2/10/98     23.5       560        566        0.2        6.9
       9         254201080281701     2/11/98      25        494        525        0.2        7.2
      10         254207080202201     2/10/98      26        561        568        0.4        6.8
      11         254938080170902     2/9/98      25.5       504        509        0.2        6.9
      12         254958080171601     2/12/98     26.5       585        589        0.2        6.9
      13         255052080245001     3/18/98     22.5       591        599        0.1        7.1
      14         260053080144701     2/12/98      26        489        492        0.1        6.9
      15         260223080143301     3/16/98     25.5       540        544        0.2         7
      16         260234080211701     1/26/98     24.5       695        692        0.1        6.8
      17         260322080162103     3/17/98      25        711        716        0.1        6.9
      18         260332080182101     3/17/98      25        772        785        0.2        6.8
      19         260539080155101     3/12/98      23        595        599        0.1        6.7
      20         260738080162701     3/9/98      24.5       753        758        0.1        6.6
      21         261028080154901     3/12/98      24        630        632        0.1        6.7
      22         261158080151301     3/11/98      25        613        622        0.1        6.8
      23         261404080100601     3/10/98      24        608        611        0.2        6.7
      24         261533080141101     3/11/98      24        785        797        0.1        6.6
      25         261830080073101     3/10/98     24.5       513        521        0.2        6.8
      26         262156080063601     1/22/98      25        538        536        0.1        6.8
      27         262649080053801     1/21/98     25.5       533        533        0.4         7
      28         262858080083901     1/22/98      25        591        595        0.2        6.9
      29         263638080040301     1/21/98     25.5       529        527        0.2        7.1
      30         263656080121901     1/20/98     24.5       771        754        0.1        6.8