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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 Two] Coliform Sampling EC TDS pH Hardness Ca Mg Na K Alkalinity OH CO3 HCO3 SO4 CI NO3 NO2 F F B Cu Fe Mn Zn Total Fecal Point Date (Wcm) as CeCO3 u CaCO3 as OH as CO3 as HCO3 as NO3 a NO2 (la/L) (Ita/6) Ipe/L) W L) (MPN/IOO mL) Maximum Contaminant 6.5 to Level 900• 500• 85` 250' 250' 45 3 2 1,000• 300• 50" 5,000• Brown's New 7/6/1995 830 550 7.4 280 74 24 74 6 210 ND ND 250 190 37 93 ND ND ND 1.2 ND 50 ND 80 -- -- Brown'sNew 11/11/1995 830 550 75 270 70 23 83 ND 230 ND ND 290 180 38 9.5 ND ND 0.2 1 ND ND ND ND - -- Brown's New 1/11/1996 860 560 7.4 270 72 23 81 ND 240 ND ND 300 180 39 9.4 ND ND O4 1.1 ND ND ND ND - -- Brown's New' 52/1996 840 510 7.4 290 69 28 78 2 220 ND ND 270 180 41 11 ND ND 0.5 1.1 ND 1,900 ND ND -- -- Brown's New 7/10/1996 850 510 9.1 280 71 26 75 ND 210 12 110 ND 190 40 11 ND ND 0.2 LI ND ND ND ND - -- Brown's New 10/16/1996 860 540 74 290 74 25 84 2 210 ND ND 250 200 41 8.6 ND ND ND ND ND 600 ND ND -Brown's New 121/1997 880 540 7.9 288 75 25 78 2 200 ND ND 240 210 42 8.5 ND ND 0.2 1.2 ND 180 ND ND -Brown's New 7/3/1997 820 580 7.2 300 76 26 87 2 190 ND ND 240 190 41 6.8 ND ND 0.1 1.3 ND 7,400 290 ND - -- Brown's New 1/27/1998 810 470 75 250 64 22 76 1 180 ND ND 220 180 40 6.1 ND ND 0.2 1.1 60 46,000 1,700 ND -Brown's New 9/72000 865 570 72 256 68 21 81 2 200 ND ND 240 188 40 8.3 ND --- 0.2 LI ND ND ND ND - -- Brown's New 2212001 872 570 6.9 272 71 23 82 2 200 ND ND 250 199 41 7.7 ND --- 0.1 124 30 7,750 260 40 -- --- Brown's New 5232001 865 580 6.8 286 75 24 81 2 200 ND ND 250 186 39 7.8 ND --- 0.1 1.2 10 680 30 20 -- - Brown's New 11232009 850 540 8.0 261 70 21 82 2 200 ND ND 240 181 38 8.5 <0.3 --- 0.2 1.2 <10 140 <10 QO - -- Brown'sNew 5252010 833 520 74 261 70 21 81 2 190 ND ND 230 180 38 8.9 <0.3 --- 0.2 1.1 <10 110 <10 QO - -- Brown's New 11/302010 822 560 7.4 268 71 22 76 2 180 ND ND 220 170 36 8.3 <0.3 - OF 1.1 70 4,530 70 20 -- - -- Brown'sNew 5232011 832 540 7.2 259 69 21 75 2 180 <10 <10 220 177 36 9.1 <0.3 -- 0.2 LI 300 16,700 300 60 --Brown's New 11/172011 833 510 8.0 266 72 21 84 2 180 <10 <10 220 178 38 10.2 <0.3 - 0.2 LI <10 440 10 <20 --- - Brown's New 5/312012 843 510 7.7 268 71 22 82 2 180 <10 <10 220 175 38 9.4 <0.3 - 0.2 1.1 <10 60 <10 QO NS NS Brown's New 11/202012 834 550 7.9 278 75 22 77 2 180 <10 <10 230 171 37 9.8 10.3 -- 0.2 1 <10 520 <10 80 NS NS Brown's New 5202013 813 540 7.7 270 72 22 82 2 ISO <10 <10 230 171 36 10.3 <0.3 -- 0.2 LI <10 330 10 50 NS NS Brown's New 11/18/2013 823 510 7.5 241 57 24 73 2 160 <10 <10 190 210 46 L1 10.3 -- 0.2 1.4 30 1,010 30 830 NS NS Brown's New 5/142014 806 550 7.6 233 52 25 96 3 150 <10 <10 ISO 203 45 24 <0.3 -- <0.1 1.3 500 5380 130 1,010 NS NS Brown's New 11/122014 724 430 7.8 156 28 21 86 2 190 <10 <10 240 197 45 16 <0.3 --- O4 1.1 <10 540 <10 550 NS NS Brown's#1 3/1/1994 960 580 7.5 277 70 25 83 ND 195 ND ND 238 171 41 12.2 ND ND 0.2 1.1 ND ND ND 100 --- -- Brown's#1 6/1/1994 850 500 74 330 68 33 94 ND 200 ND ND 240 150 30 12 ND ND ND 12 ND ND ND ND --- --- Bme,n's#1 10/4/1994 900 550 7.5 290 71 26 84 ND 204 ND ND 250 160 42 12 ND ND 0.1 1.1 ND ND ND ND -- -- Brown's#1 1/19/1995 850 540 75 290 68 29 72 2 190 ND ND 230 130 68 30 ND ND 0.2 1 ND 400 ND 60 -- -- Brown's#1 4/26/1995 900 580 8 310 70 32 70 ND 210 ND ND 250 180 43 22 ND ND 0.2 1 -- 3,200 30 190 --- Brown's#1 1/11/19% 870 580 7.6 290 67 30 76 ND 260 ND ND 310 170 41 17 ND ND 0.2 1.1 ND 9,300 130 190 --- -- Browns#1 52/1996 880 540 73 320 68 36 80 3 220 ND ND 260 190 50 16 ND ND 0.6 LI ND 5,800 190 580 --- -- Browns#1 1/21/1997 870 560 77 311 72 32 73 3 210 ND ND 250 200 45 16 ND 0.5 0.2 1.2 ND 4,900 110 130 --- Brown's 41 4/9/1997 880 560 6.6 320 77 32 74 2 210 ND ND 260 190 47 15 ND ND 0.9 1.2 ND 2,700 60 50 --- -- Brown's#1 7/3/1997 870 680 75 320 76 32 78 3 210 ND ND 250 190 43 14 ND ND 0.3 1.2 ND ND ND ND --- Brown's#1 --Brown's#1 10/16/1997 950 550 76 290 68 29 76 6 210 ND ND 260 180 40 13 ND ND 0.4 13 ND 740 ND ND --- Brown's 9 1 --Brown's#1 127/1998 860 530 75 290 69 29 69 2 220 ND ND 270 170 40 16 ND 0.5 0.2 1.2 ND 1,500 ND 80 --- -- Brown's#1 8/4/1998 850 550 78 290 68 29 76 3 200 ND ND 250 170 39 15 ND ND 0.2 1.2 ND 410 ND ND --- --- Brown's#1 11/4/1998 860 510 7.5 300 70 30 74 3 210 ND ND 250 180 37 12 ND --- 0.2 1.1 ND 690 ND ND --- --- BroWaal 22/1999 900 600 7.5 310 73 31 75 2 210 ND ND 260 180 38 12 ND --- 0.2 LI ND 1,300 ND ND --- Brown's 41 --Brown's#1 5/11/1999 890 570 74 310 73 31 73 2 230 ND ND 280 190 41 14 ND -- 0.2 1.2 ND 1,300 ND 80 --- -- 3/18/2015 N,7 of 9 L l l l l L