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r- r r r Table 4 Historical Groundwater Quality Record Teichert Aggregates and Granite Construction-Vernalis Area, San Joaquin County (all units in mq/L,unless otherwise specified) Total total Coliform Sampling EC TDS 011 Hardman Ca Mg Na K Alkalinity OH CO3 HCO3 SO4 Cl NO3 NO2 P F 0 Cu Fe Mn Zn Total Feat Point Date IAShm1 as C.0O3 as CaCO3 as OH as CO3 as HCO3 as NO3 as NO2 lag/LI lug/L) (a¢/LI (ItdLl MPN/100mL1 Maximum Contaminant 6.5 to Level 900+ 500+ 8.5+ 250+ 250+ 45 3 2 1,000+ 300+ 50+ 5 000+ Ball 8/24/2004 934 530 71 282 75 23 90 2 230 <IO <10 280 62 Ill 17.9 <0.3 - 0.3 0.5 <10 60 <IO QO <L1 -- Hall 122/2004 932 580 7.5 275 74 22 88 2 230 <10 <10 280 63 117 18.8 110.3 - 0.3 0.5 <10 <50 <10 QO <I.1 -- Hall 2232005 952 550 7.4 266 72 21 90 2 230 <10 <10 290 62 121 18.6 <0.3 - 0.2 0.5 <10 <50 <IO QO <Ll -- Hall 5/112005 990 600 7.4 318 88 24 83 2 240 <10 <10 290 100 109 14.8 <0.3 - 0.2 0.4 <10 <50 <10 QO <L1 -- Hall 8/302005 956 600 74 266 72 21 85 2 ISO <IO <10 220 65 147 18.2 <0.3 - 0.2 0.4 110 <50 <10 QO <LI -- Hall 11/152005 949 590 74 270 72 22 82 2 200 <10 <10 240 63 127 18.4 1.7 -- 0.2 0.5 <10 <50 <10 QO Hall 2/152006 946 540 7.4 278 75 22 91 2 220 <10 <10 260 63 120 18.2 1.6 - 0.2 0.5 <10 <50 <10 QO <Ll - Hall 5/312006 985 560 76 292 79 23 89 2 220 <10 <10 260 68 140 19.2 <0.3 - 0.2 0.5 110 <50 <10 QO <1.1 - Hall 8212006 992 630 7.5 274 75 21 86 2 220 <10 <10 260 67 137 19.0 <0.3 - 0.2 0.4 QO <50 <10 QO <1.1 - Hall 11//42006 979 590 7.5 289 78 23 92 2 220 <10 <10 270 64 130 19.3 <0.3 - 0.2 0.40 <10 <50 <10 QO <1.1 - Hall 2/132007 972 600 7.6 275 74 22 90 2 220 <10 <10 260 68 137 17.6 <0.3 - 0.3 0.34 <10 <50 <10 QO <1.1 -- Hall 5292007 967 600 7.5 252 68 20 86 2 210 <10 <10 260 67 132 19.1 <0.3 - @.1 0.39 <10 70 <10 QO <1.1 - Hall 8/142007 957 550 6.7 283 77 22 94 2 210 <10 <10 250 68 129 18.6 <0.3 - 0.2 0.49 <10 <50 <10 QO <1.1 - Hall 11262007 955 590 7.8 283 77 22 84 2 210 Q0 <10 260 68 132 18.6 <0.3 - 0.2 0.4 <I0 <50 <10 QO <1.1 -- Hall 2/42008 952 550 7.8 278 75 22 89 2 210 <10 <10 260 70 134 19.2 <0.3 - 0.1 0.4 <10 <50 <10 QO <Ll <1.1 Hall 5/12008 932 550 7.3 269 73 21 86 2 210 <10 <10 260 71 121 17.2 <0.3 - 0.2 0.4 <10 <50 <10 QO <LI <L1 Hall 8262008 865 560 6.9 268 71 22 88 2 210 <10 <10 250 77 119 19.1 <O.3 - 0.2 0.5 <10 <50 <10 QO 1.1 <1.1 Hall 11252008 958 530 8.1 270 72 22 87 2 200 <10 <10 250 74 125 19.2 <0.3 - 0.2 0.5 <10 <50 <10 QO <1.1 <1.1 Hall 2/102009 954 550 8.1 264 71 21 86 2 200 <10 <10 250 73 125 19.3 m.3 - 0.2 0.5 <10 <50 <10 QO <1.1 <LI Hall 5/52009 934 570 6.9 269 73 21 87 2 200 <10 <10 250 74 118 19.7 <0.3 - 0.2 0.5 <10 <50 <10 QO <1.1 <1.1 Hall 8/42009 922 530 7.9 262 72 20 87 2 200 <10 <10 250 76 118 18.5 <0.3 - 0.2 0.5 QO <50 <10 QO <1.1 <Ll Hall 11232009 923 510 8.0 266 72 21 88 2 200 <10 <10 250 76 118 19.4 <0.3 -- 0.2 0.5 <10 <50 <10 QO <1I <LI Hall 5252010 921 530 7.4 271 74 21 89 2 200 <10 <10 240 74 120 20.9 <).3 - 0.1 0.4 <10 <50 <10 QO <LI <L1 Hall 11/302010 890 540 7.4 269 73 21 84 2 190 <10 <10 230 73 106 16.9 <0.3 - 0.2 0.4 110 <50 <10 30 <1.1 <1.1 Hall 523/2011 877 510 7.7 255 71 19 81 2 190 <10 <10 230 76 106 15.8 -10.3 - 0.2 0.4 <10 50 <10 QO <1.1 <1.1 Hall 11/17201/ 878 480 7.9 262 72 20 92 2 200 <10 <10 240 81 98 12.7 <0.3 - 0.2 0.5 <10 <50 <10 QO <1.1 <1.1 Hall 5/312012 879 530 7.4 254 69 20 86 2 190 <10 <10 230 77 99 12.6 <0.3 - 0.2 04 QO <50 <10 QO NS NS Hall 11202012 882 520 7.4 274 75 21 81 2 200 <10 <10 250 83 93 11.5 <0.3 - 0.2 0.4 <10 <50 QO QO <LI Q,1 Hall 5202013 860 510 7.3 254 69 20 85 2 200 <10 <10 250 83 92 11,1 -�0.3 -- 0.3 0.4 <10 <50 <10 QO <I.1 <1.1 Hall 11/182013 889 530 7.6 264 71 21 68 2 200 <10 <10 250 91 106 14.5 <0.3 - <D.I 0.5 20 <50 <10 QO <I.1 <1.1 Hall 5/142014 853 560 7.5 257 70 20 77 2 200 <10 <10 240 82.5 97 14.0 <0.3 - 0.1 0.4 <10 100 <10 QO <I.I <1.1 Hall 11/122014 1040 590 7.9 301 81 24 88 2 210 <10 <10 260 87 133 34.2 <0.3 --- 0.2 0.5 <10 50 <10 QO <I.I <I.1 Faulkner 6/1/1994 1,000 680 7.8 360 93 31 97 ND 230 ND ND 280 75 32 25 ND ND ND 0.5 ND 60 ND 70 Absent --- Faulkner 10/4/1994 1,100 620 7.5 320 86 26 100 ND 240 ND ND 300 66 120 36 ND ND ND 0.5 ND ND ND ND Present Abaen,2 Faulkner 1/19/1995 1,000 600 7.4 310 80 25 92 ND 230 ND ND 280 72 130 30 ND ND 0.1 0.5 ND ND ND ND Absent -- Faulkner 426/1995 1,000 600 7.6 290 79 23 87 ND 220 ND ND 270 74 140 25 ND ND ND 0.4 ND ND ND ND Absent - Feulkner 7/6/1995 980 600 7.5 280 72 23 88 ND 230 ND ND 280 66 140 24 ND ND ND 0.5 ND ND ND ND Absent - Faulkner 11/11/1995 1,000 600 7.7 310 83 25 92 ND 270 ND ND 320 75 135 29 ND ND ND 0.4 ND ND ND ND Absent -- Faulkner in In996 1,000 630 7.4 300 83 23 89 ND 280 ND ND 350 64 140 30 ND ND 0.3 0.4 ND ND ND ND Absent - Faulknef' 5/2/1996 990 580 7.4 320 82 29 91 2 230 ND ND 270 80 140 26 ND ND 0.6 0.4 ND 30 ND ND Absent -- 3/1812915 P.,2.C9