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<br /> OB-15
<br /> Grounrisrater Elev. Temp. Field pH Field EC Field Turbidity Lab pH Lab EC Lab TDS Magnesium Calcium Potassium Bicarbonate Sodium CNoride Sulfate Nitrate
<br /> DATE Graphed Date (FT MSL) (og q (pH Units) ( mhos/ ) (NTD ) (pH Units) (umhos/cm) (mg/L) (mg/L) (mg/L) (mall) (mg/L) (mg/L) (mg/L) (mg/L)
<br /> 01/27/92 TO 01/29/92 January 29,1992 37.74 16.8 Z00 2,157
<br /> 05/06/92 TO 05/07/92 May 7,1992 38.50 23.0 6.60 1,023
<br /> 08/04/92 TO 08/05/92 August 5,1992 38.16 22.0 6.80 1,495
<br /> 10/15/92 TO 10/16/92 October 16,1992 37.46 17.0 6.80 1,800
<br /> 01/26193 TO 01/29193 January 29,1993 40.41 17.0 6.60 1,800
<br /> 4/27/1993 April 27,1993
<br /> 07/26193 TO 07129/93 July 29,1993 38.86 17.5 6.50 2,350 74.00 6.60 2.400 1,300 310 364 225 <0.4
<br /> 11/16/93 TO 11/18/93 November 18,1993 36.83 17.5 6.80 2,000 26.10 6.70 2,300 1,230 39 94 3.2 364 297 353 245 6.6
<br /> 03108/94 TO 03109/94 March 9,1994 40.61 18.0 6.20 2,100 16.50 6.70 2,060 1,240 272 358 250 0.4
<br /> 06106/94 TO 06109/94 June 9,1994 38.36 18.0 6.70 1,150 5.80 6.90 1,240 880 79 56.9 305 133
<br /> 09107194 TO 09108/94 September 8,1993 38.67 17.0 6.20 1,950 35.80 6.80 1,930 1,210 235 288 290 44.3
<br /> 12/13/94 TO 12/16/94 December 16,1993 38.69 16.0 6.40 1,900 18.50 6.60 2,170 1,360 41 128 3.7 300 260 350 325 14.6
<br /> 02/28/95 TO 03/01/95 March 1,1995 39.08 17.5 6.60 2,000 13.40 7.00 385 250 22 6.9 84 268
<br /> 06/07/95 TO 06109195 Juno 9,1995 40.66 18.0 6.70 1,500 10.00 7.10 1,600 1,010 31 91 3.8 230 192 220 272 10.6
<br /> 09/06/95 TO 09/08/95 September 8,1995 38.27 17.5 6.50 1,650 8.60 6.80 2,060 1.300 270 314 373 0.9
<br /> 11/15/95 TO 11/17/95 November 17,1995 38.98 18.0 6.60 1,900 9.20 7.00 1,990 1,260 37 104 3.2 277 254 294 349 <T,l
<br /> 02/13/96 TO 02/14/96 February 14,1996 40.38 18.5 6.60 1,750 6.80 2,010 1,280 266 296 365 <()A
<br /> 05108196 TO 05/09196 May 9.1996 44.11 16.5 6.80 1,900 40.50 7.00 1,740 1,100 241 229 339 <0.4
<br /> 07/10/96 TO 07/11/96 July 11,1996 39.68 18.5 6.90 1,700 8.50 7.30 1,690 1.080 242 213 304 <0.4
<br /> 11/12/96 TO 11/14/96 November 14,1996 40.23 17.0 7.00 1,650 5.90 7.20 1,730 1,080 27 82 2.8 270 251 236 294 <0.4
<br /> 03/05/97 TO 03107/97 March 7,1997 53.61 17.0 7.20 1,200 3.10 8.00 1,280 925 64 54.1 335 137
<br /> 05128/97 TO 05130/97 May 30,1997 43.54 19.0 6.90 1,350 0.60 7.30 1,420 985 126 115 303 93
<br /> 09/03/97 TO 09/05/97 September 5,1997 39.35 18.0 7.10 1,350 6.96 1,360 855 208 144 272 <0.4
<br /> 12116/97 TO 12/18/97 December 18,1997 38.75 17.0 7.20 1,200 12.50 7.05 1,140 697 14 42 3 173 164 113 230 <0.08
<br /> 03104/98 TO 03106/98 March 6,1998 49.74 16.0 6.90 940 14.30 7.21 1.050 683 150 103 208 0.33
<br /> 06/09/98 TO 06/11/08 June 11,1998 44.46 18.5 7.00 1,100 7.70 7.03 1,210 802 166 137 264 0.36
<br /> 09/16/98 TO 09/18/98 September 18,1998 44.25 17.0 6.88 965 2.35 6.98 1,360 814 171 148 247 0.41
<br /> 12/08/98 TO 12/10/98 December 10,1998 41.51 14.8 6.87 1,500 6.75 6.88 1,220 855 20 61 4 244 191 154 221 <025
<br /> 03/16199 TO 03/18199 March 18,1999 45.14 16.7 6.46 2,000 13.90 6.71 1,410 904 162 207 238 <0.05
<br /> 05/23199 TO 06125199 June 25,1999 42.89 20.4 6.77 1,238 26.70 6.82 1,140 830 143 170 215 <0.25
<br /> 09115199 TO 09117199 September 17,1999 39.18 20.9 7.01 908 35.20 6.80 1,230 - 844 202 170 208 <0.25
<br /> 11109199 TO 11/11/99 November 11,1999 39.07 17.6 6.75 1,309 16.69 6.68 1,250 808 20 62 3 239 202 181 214 <0.25
<br /> 02/08/00 TO 02110/00 February 10,2000 38.84 18.0 6.65 1,321 14.70 6.83 1,200 775 194 175 168 <0.25
<br /> 05/23/00 TO 05/24/00 May 24,2000 43.35 18.3 6.31 1,416 8.25 6.96 1,290 829 191 188 174 <0.05
<br /> 08/08/00 TO 08/10100 August 10,2000 38.75 19.1 6.80 1,182 4.94 6.71 1,230 608 180 171 197 <0.05
<br /> 10/09100 TO 10/12100 October 12,2000 38.71 17.9 894 1,390 17.69 6.71 1,290 827 23 70 2 237 197 187 205 <0.05
<br /> 01/08/01 TO 01/10/01 Jarwary 10,2001 38.75 14.1 6.88 1,094 12.10 6.83 1,200 822 127 187 198 0.07
<br /> 04/09/01 TO 04/11/01 April 11,2001 39.93 16.2 6.71 1,266 5.58 6.63 1,330 793 19 59 1 220 194 183 164 <0.02
<br /> 07/10/01 TO 07/12/01 July 12,2001 39.74 18.7 6.60 1,361 2.10 673 1,350 804 177 176 161 0.05
<br /> 10/08/01 TO 10/10/01 October 10,2001 38.23 17.6 6.73 1,326 27.00 6.77 1,340 732 241 172 330 <0.05
<br /> 01/22/02 TO 01/23/02 January 23.2002 39.74 15.1 6.64 1,158 27.00 6.75 1,200 714 158 174 124 0.07
<br /> 05/06/02 TO 05/08/02 May 8,2002 40.63 17.9 6.60 1,193 2.10 6.68 1,200 695 171 164 110 <0.05
<br /> 07123102 TO 07124102 July 24,2002 39.38 20.4 6.53 1,100 7.61 702 211 166 99 <0.05
<br /> 10107/02 TO 10109102 October 9,2002 38.42 18.3 6.68 950 23.10 6.81 1,200 688 13 41 2 273 157 216 98 <0.05
<br /> 01/28/037001/30/03 January 30,2003 39.42 14.3 6.79 1,167 20.40 6.89 1,260 703 211 171 894 <0.05
<br /> 04129/03 TO 05101103 May 1,2003 42.15 17.2 647 1,260 6.08 6.65 1,270 677 11 36 3 307 189 158 118 <0.05
<br /> 07/21/03 TO 07/23/03 July 23,2003 39.34 20.2 6.71 1,119 18.00 7.58 1,140 627 190 144 139 <0.16
<br /> 10/28/03 TO 10/30/03 October 30,2003 40.23 18.4 6.76 1,080 19.00 6.63 1.100 616 113 133 98.6 <0.05
<br /> 01/19104 TO 01122/04 January 22,2004 39.09 15.4 6.81 961 11.00 6.93 1,050 602 135 127 90.5 <0.05
<br /> 04/12/04 TO 04/15/04 April 15,2004 38.90 15.9 6.68 1.075 22.00 6.84 1,080 636 170 147 89.6 <0.05
<br /> 07/12/04 TO 07/15/04 July 15,2004 39.34 17.2 6.72 1,126 17.30 6.94 1,130 644 130 152 100 <0.05
<br /> 10/11104 TO 10114104 October 14,2004 38.13 17.0 6.70 1,123 17.40 6.90 1,140 654 15 47 5 298 164 145 93.8 <0.05
<br /> 01/25105 TO 01127/05 Jaruary 26,2005 38.49 16.3 6.72 1,044 13.30 6.70 1,100 640 160 140 91 <0.10
<br /> 04/18105 TO 04/21/05 April 18,2005 37.42 15.4 6.86 1,116 0.84 6.60 1,100 630 160 130 94 <0.10
<br /> 07/11/05 TO 07/13/05 July 11,2005 41.06 16.6 6.74 1,070 2.00 6.80 1,100 670 170 130 96 <0.10
<br /> 10111/05 TO 10/13/05 October 11,2005 40.92 16.6 6.77 1.117 2.85 6.70 1,100 640 15 50 <5.0 250 170 110 88 <0.10
<br /> 01/23/06 TO 01/25/06 January 25,2006 50.04 15.2 6.62 1,240 0.03 6.70 1,100 640 170 120 130 <0.10
<br /> 04/10/06 TO 04113106 April 10,2006 52.92 15.4 6.49 1,099 9.70 6.70 1,100 770 180 130 98 <0.10
<br /> 07/17/06 TO 07120106 July 17,2006 45.01 17.4 7.04 1,157 6.48 6.80 1,200 700 160 140 100 <0.10
<br /> 10116/06 TO 10/19106 October 16,2006 45.67 16.2 6.71 1,157 1.86 7.37 1,100 690 17 62 2.7 360 170 140 110 <0.44
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