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OB-13
<br /> _ Groundwater Elev Temp Field pH Field EC Field Turbidity Lab pH Lab EC Lab TDS Magnesium Calcium Potassium Bicarbonate Sodium Chloride Sulfate Nitrate
<br /> DATE Graphed Date (FT MSL) (Degrees 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/LL
<br /> 01/27/92 TO 01/29/92 January 29,1992 37.83 17.8 6.60 1,654 6.80 2,180 1,370 25.6 98.3 5.1 463 194 315 19 <50
<br /> 05/06192 TO 05/07/92 May 7,1992 38.71 19.5 6.70 906 7.10 2,200 1,200 23 81 4.2 630 200 310 39 <50
<br /> 08/04/92 TO 08105/92 August 5,1992 37.74 20.0 6.90 1,734 7.10 2,010 1,160 20 76 4.2 170 200 6 9 1.6
<br /> 10/15/92 TO 10116/92 October 16,1992 37.60 18.5 6.70 1,900 7.20 2,170 1,210 23 85 4.3 570 200 370 60 <0.4
<br /> 01/26/93 TO 01/29/93 January 29,1993 40.10 18.0 6.80 1,550 7.10 2,290 1,160 28 110 6 730 230 380 94 0.4
<br /> 4/27/1993 April 27,1993 39.99 19.0 6.60 895
<br /> 07/26/93 TO 07/29/93 July 29,1993 38.37 18.0 6.70 2,400 60.00 6.90 2,400 1,300 281 372 110 0.9
<br /> 11/16/93 TO 11/18/93 November 18,1993 38.12 18.0 6.60 2,150 12.40 7.00 2,300 1,140 38 120 7.5 615 264 380 24 0.4
<br /> 03/08/94 TO 03/09/94 March 9,1994 40.45
<br /> 06/06/94 TO 06/09/94 June 9,1994 38.43
<br /> 09/07/94 TO 09/08/94 September 8,1993 38.57
<br /> 12/13/94 TO 12/16/94 December 16,1993 38.77 17.0 7.00 2,000 15.70 6.70 2,350 1,340 49 142 7 786 276 366 38 <0.4
<br /> 02/28/95 TO 03/01/95 March 1,1995 19.0 6.70 2,500 32.20 6.70 2,310 1,350 278 393 55 <0.4
<br /> 06/07/95 TO 06/09/95 June 9.1995 41.04 20.0 6.50 2,350 10.70 7.10 2,300 1,340 48 140 6.2 703 264 368 74 1.3
<br /> 09/06/95 TO 09/08/95 September 8,1995 38.20 20.0 6.60 1,850 17.90 6.80 2,400 1,400 277 398 75 0.9
<br /> 11/15/95 TO 11/17/95 November 17,1995 39.31 20.0 6.10 2,300 20.00 7.00 2,330 1,330 58 168 6.1 858 228 332 55 0.4
<br /> 02/13/96 TO 02/14/96 February 14,1996 40.37 20.0 6.60 2,350 6.90 2,450 1,400 274 385 6 <0.4
<br /> 05/08/96 TO 05/09/96 May 9,1996 44.01 19.0 6.90 2,200 24.10 8.40 2,060 1,300 223 284 288 <0.4
<br /> 07/10/96 TO 07/11/96 July 11,1996 40.21 20.5 6.90 2,600 13.60 7.20 2,450 1,450 259 345 69.8 <0.4
<br /> 11/12/96 TO 11/14/96 November 14,1996 39.60 19.0 6.60 2,250 22.80 7.00 2,310 1,340 63 175 5.8 831 232 314 79 <0.4
<br /> 03/05/97 TO 03/07/97 March 7,1997 53.36 19.0 6.90 2,100 53.60 7.00 2,110 1,420 220 246 534 0.4
<br /> 05/28/97 TO 05/30/97 May 30,1997 43.56 20.0 6.40 2,200 17.30 8.50 2,230 1,520 248 270 520 2.7
<br /> 09/03/97 TO 09/05/97 September 5,1997 39.30 20.0 6.80 2,300 6.85 2,330 1,370 251 324 131 <0.4
<br /> 12/16/97 TO 12/18/97 December 18,1997 39.16 18.0 6.90 2,300 27.20 7.06 2,270 1,310 48 142 10 762 216 285 86.8 0.26
<br /> 03/04/98 TO 03/06/98 March 6,1998 50.53 17.5 6.70 1,900 39.80 7.22 1,580 992 190 180 231 <0.08
<br /> 06/09/98 TO 06/11/98 June 11,1998 45.16 18.0 6.90 1,500 18.20 6.86 1,810 1,110 191 248 169 191
<br /> 09/16/98 TO 09/18/98 September 18,1998 43.86 18.5 6.82 1,300 162.50 6.82 1,380 931 131 143 179 <0.25
<br /> 12/08/98 TO 12/10/98 December 10,1998 42.10 14.7 6.68 1,750 37.50 6.65 1,380 925 34 106 6 460 157 126 93.2 <0.25
<br /> 03/16/99 TO 03/18/99 March 18,1999 45.60 17.0 6.43 2,100 31.20 6.48 1,550 1,040 132 210 237 0.11
<br /> 06/23/99 TO 06/25/99 June 25,1999 42.77 19.3 6.52 1,755 53.70 6.58 1,590 1,140 160 238 199 <0.25
<br /> 09/15/99 TO 09/17/99 September 17,1999 39.26 21.8 6.68 1,461 53.80 6.68 1,250 1,320 246 283 80.4 <0.25
<br /> 11/09/99 TO 11/11/99 November 11,1999 39.45 18.1 6.57 2,380 14.61 6.59 2,170 1,260 58 175 8 844 242 297 42.4 <0.25
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