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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) Toml To4al Coliform Sampling EC TDS pH Hardness Cs Mg No K Alwinity ON CO3 HCOJ SOI CI NO3 NO2 P F e Cu Fe Mn Zn Total Foal Pains Date lu&cml u GC03 u CaCO3 "011 as CO3 as HCO3 as NO3 as NO2 (aa/L) (ae/L) (pg/L) (aa/L) (MPN/100 mL) M"1mam Contamlrmm 6510 Lcwl' 900• 500• 85• 250• 250' 45 3 2 1.000• 300• 50• 5,000- S Tracy#1 7/3/1997 790 530 73 260 64 24 69 1 170 ND ND 200 130 66 42 ND ND 0.3 1 ND ND ND ND - - S Tmcy#1 127/1998 800 460 74 240 60 22 66 2 160 ND ND 190 120 65 41 ND ND 0.3 1 ND 90 ND ND - - S.Tracy#1 5/5/1998 800 520 76 250 61 23 71 2 160 ND ND 200 120 67 43 ND ND 0.3 1 ND ND ND ND - - S.Tmcy#1 8/4/1998 800 520 78 250 64 23 70 1 150 ND ND 190 120 68 44 ND ND 02 1 ND ND ND ND - - s rmv#1 11/4/1998 810 480 75 250 67 23 72 7 166 ND Nn Ian 170 67 41) Nil - 02 na Nil ND ND NP - -- S.Truv#1 22/1999 800 530 73 250 62 23 70 2 160 ND ND 200 IIU 63 40 ND -- 0.3 U.9 ND No ND ND -- --- S.Tmcy#1 9118/1999 804 490 7.7 245 62 22 69 1 160 ND ND 200 114 61 41.3 ND - 0.4 0.9 ND ND ND ND - - S.Tracy#1 11117/1999 808 470 74 253 65 22 64 2 160 ND ND 200 121 64 41.5 ND - 04 1 ND ND ND ND - - S.Tracy#1 9x7/2000 847 530 72 248 61 22 78 2 160 ND ND 200 129 66 453 ND - 0.3 0.95 ND ND ND ND - - S.Tm y N i 11282000 835 500 72 248 63 22 71 2 248 ND ND 200 132 61 40.3 ND - 0.1 1.02 ND ND ND ND - - S.Trary#1 2/212001 832 530 7 252 63 23 73 2 170 ND ND 200 144 63 40,5 ND - 0.2 0.98 ND ND ND ND - S.Traq 01 5232001 842 530 7 266 67 24 73 2 170 ND ND 210 140 60 37.2 ND - 0.1 0.99 ND ND ND ND - - S.Tracy#1 8/28/2001 845 550 75 244 63 21 90 2 170 ND ND 210 145 59 37.1 ND - 0.3 0.91 ND ND ND ND - - S.Tmey#1 12/112001 832 590 7.2 257 65 23 71 2 170 ND ND 210 135 57 36.1 ND - 0,2 0.94 ND ND ND ND - - S.Tmcy#1 3/12/2002 834 510 7.3 261 65 24 73 2 170 ND ND 210 144 61 35.6 ND - 0.1 0.93 ND ND ND ND - - S,Tf"#1 6119/2002 938 550 7.6 262 67 23 70 2 170 ND ND 210 146 59 34.5 ND - 0.2 0.95 ND ND ND ND - - S,Tracy#1 912002 836 530 7.3 240 62 22 69 2 170 ND No 210 132 57 34 ND - 0.2 0.97 ND ND No ND - - S.Tracy#1 10222002 932 540 7.8 239 66 23 73 2 180 ND ND 210 139 59 35.4 ND - 0.2 0.95 ND ND ND ND - - S.Tracy#1 1282003 838 540 79 266 67 24 71 2 190 ND ND 220 146 59 35.6 ND - 0.2 1 ND ND ND ND - - S.Tray#I 4292003 850 560 74 262 67 24 76 2 I80 ND ND 210 152 62 36.4 ND - 0.1 1.01 No ND ND ND - - S.Tray#1 91132003 851 560 72 259 66 23 72 2 180 ND ND 220 142 57 36.1 ND - 0.4 0.98 ND ND ND ND - - S.Tmcy#1 11/19/2003 944 580 6.5 248 68 25 78 2 180 ND ND 220 145 59 24.4 ND - 0.3 0.9 ND 2,800 30 350 - - S.Tnwy#1 2/172004 837 510 7.3 257 65 23 72 3 170 <10 <10 210 142 61 35.9 -0.3 - (13 1.0 <10 150 <10 QO - - S.Tracy#1 5/192004 850 530 6.6 278 70 25 76 2 170 <10 <10 210 145 59 35.5 <0.3 - 0.3 1.0 <t0 <50 <10 Q0 - - S.Tracy#I 8242004 948 540 67 271 69 24 76 2 190 <10 <10 220 148 58 34.5 -�O.3 - 0.4 1.0 <10 60 QO QO - - S.Tracy#1 12)22004 829 570 7.5 247 56 26 63 2 170 <10 <10 210 128 61 36.0 <0.3 - 0.6 0.7 <10 400 150 50 - - S.Tray#1 2/73/2005 945 550 74 259 66 23 75 2 190 <10 <10 220 147 60 34.5 <0.3 - 0.3 1.0 <10 <50 <10 QO - - S.Tnwy01 5/112005 940 510 72 266 67 24 75 2 170 <10 <10 210 144 61 35.7 <0.1 - 0.3 1.0 <10 <50 <10 QO - - S.Tracy al 91302005 942 590 74 253 65 22 72 2 170 <10 <10 210 147 69 36.9 <0.3 - 0.3 0.9 <10 <50 tl0 QO - - S.Tracy#1 II/152005 837 590 72 250 64 22 72 2 170 <IO <10 210 146 59 34.3 <0.3 - 0.3 10 <10 <50 <10 QO - - S.Tracy#I 2/15/2006 833 510 72 259 66 23 75 2 170 <10 <10 210 142 58 32.8 0.36 - 03 1,0 <10 <50 <10 QO - - S.Tracy#1 5/312006 861 $30 75 257 65 23 73 2 160 <10 <10 200 146 67 38.7 <0.3 - 0.3 1.0 <10 <50 <10 30 - - S.Tmcy91 8212006 964 530 75 245 62 22 72 2 160 <10 <10 190 139 67 39.8 <0.3 - 0.3 0.9 10 <50 <10 20 - - S.Tmry01 11/142006 949 540 7.5 262 67 23 75 2 170 <10 10 210 143 58 33.2 <0.3 - 0.3 0.89 <10 <50 <10 QO - - S.Tray 0l 2/132007 950 570 75 253 65 22 76 2 170 <10 <10 210 149 60 29.4 <0.3 - 0.3 0.93 <10 <50 10 QO - - S.hacy#1 529rl007 849 530 7.5 262 67 23 78 2 160 <10 X10 200 141 65 36-8 <0.3 - 0.3 1.05 10 <50 <IO QO - - S.Tracy#1 9/142007 851 540 6.9 271 69 24 90 2 190 10 40 210 149 56 313 <0.3 - 03 1.01 <10 <50 <10 QO - - S.Tmcyal 11262007 839 560 8.0 259 66 23 72 2 170 X10 40 210 148 60 321 <0.3 - 0.1 1.0 <10 <50 <10 20 - - Br4^_01) Pape 5 or9