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Table 4 Historical Groundwater Quality Record Teichert Aggregates and Granite Construction-Vernalis Area, San Joaquin County (all units in mg/L, unless otherwise specified) Total Total Coliform SampOag EC TDS pH Hardness Ca Mg No K Alkalinity OH C'03 BC03 SO4 Cl NO3 NO2 P F B Cu Fe Mn Zn Total Fecal Point Dare Iµ5/cml as Cam as CaCO3 as OH as('03 as IIC03 as NO3 as NO2 lu L) (µg/1) r on 1 L.u/I) rMPN/100 L) Maximum Contaminant 6.5 in Level' 900* 500* 8.5* - - 250* 250* 45 3 2 1000* 300* 50* 5.000* Browns#1 10/22/2002 770 500 7.8 248 58 25 66 3 190 ND ND 230 115 48 26.3 ND -- 0.2 0.88 ND 240 ND ND - - Browns#I 1/28/2003 694 410 8 222 51 23 54 3 180 ND ND 220 60 62 38.9 ND -- 0.2 0.66 ND 4,650 70 ND - - Brown's#1 4/29/2003 807 530 7.3 261 60 27 69 3 190 ND ND 230 127 55 43 ND -- 0.1 0.87 ND 70 ND ND - - Bmwns#1 8/13/2003 913 580 76 297 68 31 70 3 190 ND ND 230 169 54 39,9 ND -- 0.3 1 ND 200 ND ND Brown's#I 11/19/2003 930 630 7.1 300 69 31 71 3 200 ND ND 240 175 56 23.8 ND -- 0.3 0.9 ND 1,800 40 ND - Browns#1 2/17/2004 869 560 6.3 293 68 30 68 3 190 <10 <10 230 136 58 46.5 <0.3 - 0.3 1.0 10 1,380 50 80 - Brown's#1 5/18/2004 804 520 7.1 252 58 26 67 3 180 <10 <10 220 102 60 48.5 <0.3 -- 0.3 0.8 <10 2,600 80 120 Brown's#1 8/24/2004 814 490 6.6 279 64 29 68 3 190 <10 <IO 230 118 58 42.7 <0.3 - 0.4 0.9 <ID 1,000 40 20 -Brown's 91 12@/2004 760 490 74 257 65 23 74 2 170 <10 <70 210 99 65 38.8 <0.3 - 0.3 1.0 <10 <50 <10 <20 - Granite#3 2/22/2006 994 650 73 316 82 27 89 2 210 <10 <10 250 226 53 10.6 0.5 -- <0.1 1.1 30 5,740 330 40 -Granite 93 5/31/2006 1,020 680 7.5 336 87 29 90 2 210 -10 <10 260 238 54 10.8 <0.3 -- 0.2 1.2 80 4,770 270 20 - - Granite#3 8/21/2006 1,020 680 7.5 309 81 26 87 2 210 -10 <10 250 234 53 108 ao.3 -- 0.1 1.0 40 4,020 220 30 - Granlm#3 11/14/2006 1,010 700 7.5 332 87 28 93 2 210 -111 <10 250 225 52 10.8 <0.3 --- 0.2 1.06 40 3,780 240 20 -Granite#3 2/13/2007 1,010 710 7.6 318 83 27 92 2 210 -Ili <I0 260 248 55 10.1 <.3 --- 1)3 095 20 6,130 430 n0 -Granite 93 8/14/2007 994 660 7.0 330 86 28 98 3 210 <10 <10 260 229 52 10.7 <0.3 -- U'_ 1 N <10 1,570 70 30 -Granite#3 5/1/2008 996 670 7.6 316 82 27 92 2 200 <10 a10 240 224 49 11.1 <0.3 --- D? 11 <11) 80 <10 140 - - Granite#3 8/26/2008 1,030 720 71 331 85 29 96 2 lull <10 <10 250 233 53 12.1 <0.3 - U I' 10 660 30 150 - - Granite#3 11/252008 1,020 630 7.9 320 82 28 92 2 200 q0 <10 250 237 55 11.9 <03 -- 01 1 '_ 10 1,880 70 100 - - Grante03 2/10/2009 1,020 680 7.9 329 84 29 91 2 21m 10 <10 250 230 54 13.0 10.3 -- 0.1 1 1 - 10 1,320 60 50 - - Gmnite#3 5/5/2009 1,030 660 83 341 87 30 92 2 200 X10 <10 250 237 57 13.3 <0.3 -- 0.2 1 1 In 31890 90 90 - - Granite#3 11/23/2D09 1,010 640 7.8 325 84 28 91 2 200 d0 <10 240 235 56 13.7 <0.3 - 0.2 LI 10 470 40 70 - Granite#3 5/25/2010 980 640 73 321 84 27 92 2 200 <10 <10 240 218 52 13.2 <0.3 -- 02 1.0 AD 70 <10 QO - Granite#3 11/30/2010 970 660 72 323 85 27 87 2 190 qp <10 240 211 51 13.4 <0.3 -- 0.2 1.1 SIO <50 <!0 180 - - Granite 94 9/4/2009 965 620 7.9 297 78 25 90 2 200 <10 <10 240 21t 48 12.1 <03 - 02 1.I 20 410 10 <20 - - Koster 6/1/1994 800 490 7.7 240 61 3 94 ND 150 ND ND 180 96 70 31 ND ND 0.2 1 1 ND 470 50 ND - - Koster 1014,1994 890 500 7.7 230 62 19 87 ND 151 ND ND 184 110 70 35 ND ND 0.2 1 ND ND ND ND - - Koster 7/6/1995 820 510 7.6 230 61 19 78 ND 160 ND ND 195 110 95 33 ND ND ND I ND 180 ND ND - -- Koster 10/16/1996 840 500 7,4 240 62 20 87 2 160 - -- 200 100 98 32 -- - 0.2 ND ND 100 ND ND - _- Koster 4/9i 1997 820 500 6.8 240 64 18 85 2 170 ND ND 200 96 100 6.5 ND ND 0.5 1 ND 220 ND ND - - Koster 7/3/1997 810 550 7.4 230 62 19 82 3 150 ND ND 180 98 95 28 ND ND 0.3 1 ND ND ND ND - - Rustan 3/1/1994 840 460 7.7 178 48 14 87 ND 174 ND ND 212 45 80 112 ND ND 02 07 ND ND ND ND Nates: As of 2004,non-detected values are given as"<reporting limit". WW2011-10'.57 AM Page 8 of 9