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OB-21
<br /> Groundwater Elev. Temp Field pH Reid EC Field Turbidity Lab pH Lab EC Lab TDS Magnesium Calcium Potassium Bicarbonate Sodium Chloride Sulfate Nitrate
<br /> DATE Graphed Dale (FT MSL) (o yrees C) (pH Units) (umhos/cm) (NTUs) (pH Units) (umhos/cm) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
<br /> 01/27/92 TO 01/29/92 January 29,1992 36.95 13.2 7.10 1,930
<br /> 05/06/92 TO 05/07/92 May 7,1992 38.28 18.3 6.80 1,575
<br /> 08/04/92 TO 08/05/92 August5,1992 37.03 18.3 6.90 1,726
<br /> 10/15/92 TO 10/16/92 October 16,1992 38.52 15.5 7.20 1,750
<br /> 0126/93 TO 01/29/93 January 29,1993 40.73 14.2 6.50 1,650
<br /> 07/26/93 TO 0729/93 July29,1993 38.15 16.5 6.70 2,200 54.00 6.90 2,300 1,330 300 344 260 4.4
<br /> 11/16/93 TO 11/18/93 November 18,1993 37.98 15.5 7.00 2,150 5.80 7.00 2,400 1,330 55 88 1.6 426 295 359 225 3.1
<br /> 03/08/94 TO 03/09/94 March 9,1994 40.86 16.0 6.70 2,050 1.60 6.80 2,130 1,390 297 283 354 24.4
<br /> 06/06/94 TO 06/09/94 June 9,1994 38.32 16.5 7.00 1,300 2.90 7.20 1,390 880 220 177 212 4
<br /> 09/07/94 TO 09/08/94 September 8,1994 37.76 17.0 6.70 1,400 6.30 7.00 1,410 880 220 176 214 1.8
<br /> 12/13/94 TO 12/16/94 December 16,1994 38.26 16.0 6.70 1,200 3.90 6.80 1,410 880 26 44 1.2 276 213 178 210 2.7
<br /> 0228/95 TO 03/01/95 March 1,1995 39.63 17.0 6.90 1,300 2.50 6.90 1,330 850 219 162 272 13.7
<br /> 06/07/95 TO 06/09/95 June 9,1995 43.12 15.5 6.80 1,350 2.50 7.00 1,460 945 29 48 1 217 214 203 242 0.9
<br /> 09/06/95 TO 09/08/95 September 8,1995 38.16 18.5 6.80 1,400 2.60 6.70 1,560 1,000 224 234 257 7.5
<br /> 11/15/95 TO 11/17/95 November 17,1995 40.42 21.0 6.70 1,700 1.40 7.40 1,670 1,020 32 60 1 229 240 244 253 19
<br /> 02/13/96 TO 02/14/96 February 14,1996 41.03 15.0 6.70 1,300 6.90 1,390 870 199 217 193 3.1
<br /> 05/08/96 TO 05/09/96 May 9,1996 43.85 17.0 6.70 1,700 11.70 8.30 1,490 920 198 246 205 10.6
<br /> 07/10/96 TO 07/11/96 July 11,1996 42.08 16.0 6.60 1,650 1.80 7.30 1,640 975 208 250 189 21.3
<br /> 11/12/96 TO 11/14/96 November 14,1996 39.41 16.0 6.50 1,600 2.10 7.10 1,710 1,060 43 80 1.1 178 218 266 248 69.1
<br /> 03/05/97 TO 03/07/97 March 7,1997 53.16 16.0 5.90 1,700 1.30 7.40 1,720 1,080 214 284 255 28.4
<br /> 0528/97 TO 05/30/97 May30,1997 43.79 20.0 6.70 1,350 0.30 7.10 1,220 775 180 148 193 9.7
<br /> 09/03/97 TO 09/05/97 September 5,1997 38.99 20.0 6.70 1,200 6.90 1,250 755 192 167 176 12.4
<br /> 12/16/97 TO 12/18/97 December 18,1997 39.51 19.5 6.80 1,500 1.30 6.77 1,450 935 27 57 2 161 185 200 233 11.1
<br /> 03/04/98 TO 03/06/98 March 6,1998 50.96 16.0 6.80 1,350 0.40 6.63 1,310 814 179 171 233 2.23
<br /> 06/09/98 TO 06/11/98 June 11,1998 47.44 17.0 6.40 890 0.80 6.66 1,110 704 150 132 181 1.58
<br /> 09/16/98 TO 09/18/98 September 18,1998 43.75 18.0 6.60 1,400 2.30 6.75 1,440 877 171 178 219 3.88
<br /> 12/08/98 TO 12/10/98 December 10,1998 43.58 16.8 6.71 1,550 0.75 6.62 1,220 864 26 59 1 207 177 137 200 5.72
<br /> 03/16/99 TO 03/18/99 March 18,1999 45.62 19.7 6.24 1,900 22.70 6.52 1,400 841 169 111 102 1.13
<br /> 0623/99 TO 0625/99 June 25,1999 42.76 18.2 6.81 1,105 4.60 6.71 1,060 759 130 159 188 <0.25
<br /> 09/15/99 TO 09/17/99 September 17,1999 39.20 19.1 6.78 787 6.58 6.80 1,180 799 165 167 192 0.49
<br /> 11/09/99 TO 11/11/99 November 11,1999 39.91 16.5 6.71 1,229 4.51 6.65 1,090 801 25 58 1 226 176 176 212 0.78
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