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tK L E I N F E L D E R <br /> TABLE 2 <br /> Concentrations of Selected Constituents in Groundwater <br /> Former Spreckels Sugar Plant No.2 <br /> 18800 South Spreckels Road <br /> Manteca,California <br /> ar ona a pen <br /> ' n711211996 <br /> ple pH TDS Bicarbonate Alkalinity Chloride Nitirate as N Sulfate Conductivity Calcium Sodium <br /> te (pH Units) (mg/1) Alkalinity(mg/I) (mg/1) (mgll) (mg/p (mg") (umhoslcm) (mg/1) (mgll) <br /> 1992 6.9 1760 1880 1.5 204 ♦ 24 3200 238 140 <br /> 1993 76 1880 2010 1.5 216 ♦ 21 3400 230 138 <br /> 1993 7.1 1710 1590 ♦ ♦ 1.61" 0 3000 208 <br /> 1993 ♦ ♦ ♦ ♦ ♦ 2.3^ <br /> 1993 6.8 1780 2160 ♦ ♦ 2.3^ ♦ 3200 216 <br /> 1994 7 1700 1660 1.3 45 07^ 218 2800 224 139 <br /> 1995 7 1690 1650 7.3 227 2.2^ 42 2900 197 138 <br /> 1996 8.1 1720 1480 1 3 255 2.19^ 411 3070 207 151 <br /> 22411997 6.9 1900 1800 NOT 0.045^ i6 3900 220 150 <br /> 7/1/1997 6.9 2200 2000 Na 250 ♦ 6.3 3700 <br /> 10/22/1997 72200 2320 Na 210 664 10 3900 250 180 <br /> 3/1/1999 6.95 2460 2680 ND 227 ND 15.2 4220 222 1 209 <br /> 5/12/2000 ].i6 2310 2620 ND 212 ND <0.226 287 4630 211 21B <br /> 7/12/2000 7.01 2140 2380 ND 209 ND <0.226 34.5 4090 180 168 <br /> 9/2612000 7 2020 2040 ND <10 223 ND <0.226 43.7 3930 180 171 <br /> 31212001 7.24 1780 1890 NO 00 210 ND(<1D 424 3570 163 184 <br /> 91142001 7.36 1800 1600 ND <10 200 NO <0.226 52 3000 140 170 <br /> MW-1r 121192001 6.72 1700 1100 ND <10 320 19.1 130 2800 300 140 <br /> 3/11/2002 6.84 1700 1100 NO <10 280 18 120 2900 310 150 <br /> 5/1620021 00 280 150 <br /> 11/13/2002 Not Sampled <br /> 5/5/2003 6.]5 1500 670 ND(<10 280 31 1 210 2300 11 190 120 <br /> 10/82003 7.01 1300 670 ND <10 190 22 1]0 2100 150 110 <br /> 61152004 6.93 1300 750 NO 00 230 12 120 2300 150 110 <br /> 111912004 6.86 1 1000 620 ND <5.0 170 1 12 1 120 1700 15D 100 <br /> 6126ID05 7.01 1300 860 NO <5.0 190 7.2 90 2100 220 13D <br /> 1212212005 ].12 1 790 550 ND <5.0 96 1 44 59 1000 100 82 <br /> 52212006 6.87 1400 930 NO <SO) 190 5.2 77 2300 200 120 <br /> 11/712006 684 1300 840 ND(<5.0 210 11 97 2400 205 125 <br /> 51212007 7.0 1290 825 ND<5.0 171 12.8 105 2110 195 113 <br /> 10/172007 7.5 1000 570 ND<5.0 110 12 92 1500 140 99 <br /> MW-2 11/3/1992 7.1 1389 1220 1.5 243 ♦ 27 2600 232 158 <br /> 1/1111993 7.6 14901260 1 3 237 0 23 2600 241 155 <br /> --T6-3-0 <br /> 811711993 7.1 1100 ♦ • 3.5" ♦ 2400 213 <br /> 10/9/1993 ♦ ♦ ♦ ♦ ♦ *B- <br /> 11/5/1993 ].3 1340 1040 1 5.19" ♦ 2500 194 <br /> 82311994 7 1760 1580 1 1.3 20 1.1" 240 2670 2B4 1B0 <br /> B1711995 7.1 1740 1610 13 220 5" 20 2850 234 172 <br /> 7/1/1996 7.8 2060 1210 1.3 238 0.09" 55.5 2970 314 197 <br /> 221/199] 6.8 2000 1900 ND 260 0.13^ 32 3400 320 200 <br /> 10122/1997 69 1800 1600 ♦ 240 062 60 3000 270 190 <br /> 311/1999 6.88 1620 1260 ND 237 1.2 80.4 2550 248 174 <br /> 5112121X10 7.31 1200 1090 ND 178 NO <0.226) 45.2 2280 182 152 <br /> 7/122000 706 1520 1420 NO 187 ND <D,226 39 2620 201 157 <br /> 9/262000 6.92 1430 1090 ND <10 194 ND <0.226 44.9 2440 194 147 <br /> 3212001 7.16 1370 1080 ND <10 193 ND(<1,0) 424 2340 211 162 <br /> 9/14/2001 7.4 1400 1100 ND <10 190 ND c0.226 48 2000 200 170 <br /> MW-2r 12/192001 729 900 670 NO <10 160 1.2 54 1600 110 120 <br /> 311112002 7 43 840 590 ND <10 130 2.8 47 1500 100 120 <br /> 51162002 7.35 870 620 NO <i2 130 4.2 48 1500 98 110 <br /> 11/132002 7.29 770 540 ND <10 110 6 49 1400 96 110 <br /> 51512003 7.18 810 580 ND <10 110 ].B 48 1300 85 100 <br /> 10182003 7.03 930 650 ND <10 120 10 46 1600 110 110 <br /> 61152004 7.14 770 510 ntl <10 130 9.5 50 1500 82 99 <br /> 11/92004 7.18 1 800 630 Np<5.0 110 3.2 43 1400 82 95 <br /> 629/2005 7.29 910 560 ND<5.0 110 14 43 1400 99 110 <br /> 12222005 1 770 1 0 ND<5.0 97 2.8 37 1200 82 110 <br /> 51222006 7.16 860 I 590 ND c 5.0 94 5.7 41 1500 74 86 <br /> 11772006 7.09 500 1 580 NO <5.0 94 17 1 47 1 1400 85.5 10] <br /> 5212007 7.3 743 536 Np<5.0 85 2A 1 449 1280 76.7 88.9 <br /> 10/172007 7.65 920 710NO<5.0 97 6 W 73 1600 110 110 <br /> MW.3 111311992 7 1460 1260 1.5 245 ♦ 301 2600 250 154 <br /> 1/11/1993 7.6 1260 974 1.3 224 ♦ 46 2300 21D 136 <br /> 8/17/1993 7.2 1390 877 ♦ ♦ ND ♦ 1830 180 <br /> 101911993 ♦ ♦ ♦ ♦ ♦ 0.2^ <br /> 11/511993 7.1 1120 914 ♦ ♦ NO ♦ 1960 185 <br /> 8123/1994 73 1131 904 1.3 35 NO 184 1820 111 128 <br /> W711995 7.3 990 738 1.3 157 ND 33 1640 150 112 <br /> 71211996 e.fi 1040 575 73.5 184 9.3^ 63.6 1720 164 122 <br /> 220/1997 7 1000 700 ND 180 0.95 38 1800 160 120 <br /> 10/22/1997 7.5 660 1500 ♦ 140 4.10 52 1500 120 10D <br /> 3/1/1999 7.29 I 676 I 459 I NO 1 89.3 1 1.57 51.1 1120 705 936 <br /> 200.3978-03.MN71STOBR117 Pege l of 3 <br /> Copyright 208 Nleinfelder February 1,2008 <br />