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r`l► rw r0/ Table 4 Historical Groundwater Quality Record Teichert Aggregates and Granite Construction-Vernalis Area, San Joaquin County (all units in mg/L, unless otherwise specified) Tatal Total coliform Sampling EC TDS p8 Bardnaa Cs Mg No K Alkal(aity OH CO3 HCO3 SO4 Cl NO3 NO2 P F B Cu Fe Me Za Total Fetal Point Date (N&M) m COM as CaCO3 as OH as CO3 as HCO3 w NO3 m NO2 (ndL) (Ise/1.) (mutl WWLI (MPN/100 mL) Maximum Contaminant 6.5 to Level' 900• 500' 8.5' 250• 250• 45 3 2 1,000• 30" 500/ 5.000• Hall 11/192003 949 600 7.1 270 72 22 96 2 230 ND ND 280 58 124 12.3 ND - 0.3 0.5 ND 80 ND ND Absent - Hall 2/172004 941 550 7.0 256 68 21 85 2 220 <10 <10 270 58 122 17.9 <0.3 - 0.3 0.4 <10 <50 <10 QO <I.I - Hall 5/182004 936 560 6.9 264 71 21 87 2 230 <10 <10 290 61 110 17.4 <O.3 - 0.2 0.5 <10 <50 <10 QO <I.I - Hall 9/24/2004 934 530 7.1 282 75 23 90 2 230 <10 <10 280 62 112 17.9 <0.3 - 0.3 0.5 <10 <50 QO QO <I.I - Hall 1222004 932 580 75 275 74 22 88 2 230 <10 <10 280 63 117 18.8 <0.3 - 0.3 0.5 <10 <50 <10 QO <1.1 - Hall 2232005 952 550 7.4 266 72 21 90 2 230 <10 <10 290 62 121 18.6 <0.3 - 0.2 0.3 <10 <50 <10 QO <1.1 - Hall 5/112005 990 600 7.4 318 88 24 83 2 240 <10 <10 290 [DO 109 14.8 <0.3 - 0.2 0.4 <10 <50 <10 QO <LI - Hall 8302005 956 600 7.4 266 72 21 85 2 180 <10 <10 220 65 147 18.2 <D.3 - 0.2 0.4 <10 <50 <10 QO <1.1 - Hall 1111520D5 949 590 74 270 72 22 92 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 <1.1 - Hall 5912006 985 560 76 292 79 23 99 2 220 <10 <10 260 68 140 19.2 m.3 - 0.2 0.5 <10 <50 <10 QO <1.1 - Hall 8212006 992 630 7.5 274 75 21 86 2 220 <10 <10 260 67 137 19.0 <03 - 0.2 0.4 <10 <50 <10 QO <1.I - Hall 11/142006 979 590 7.5 289 78 23 92 2 220 <10 <10 270 64 130 19.3 m.3 - 0.2 0.40 <10 <SO <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 <I.I - Hall 5/292007 %7 600 7.5 252 68 20 86 2 210 <10 <10 260 67 132 19.1 <D.3 - <O.1 0.39 <10 70 <10 QO <1.1 - Hall 9114/2007 957 550 6.7 293 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 94 2 210 <10 <10 260 68 132 18.6 <0.3 - 0.2 0.4 <10 <50 <10 QO <1.1 - Hall 2/42008 952 550 7,8 278 75 22 99 2 210 <10 <10 260 70 134 19.2 <03 - 0.1 0.4 <10 <50 <10 QO <LI <1.1 Hall 5112008 932 550 7.3 269 73 21 96 2 210 <10 <10 260 71 121 17] 43 - 0.2 OA <10 <50 <10 QO <L1 <1.1 Hall 8262008 865 560 6.9 268 71 22 98 2 210 <10 <10 250 77 119 19.1 4.3 - 0.2 0.5 <10 40 <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 d.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 <0.3 - 0.2 0.5 <10 <30 <10 Q0 <1.1 <1.1 Hall 5152009 934 570 6.9 269 73 21 97 2 200 <10 <10 250 74 118 19.7 <0.3 - 0.2 0.5 <10 <30 <10 QO <1.1 <1.1 Hall 8142009 921 530 7.9 262 72 20 97 2 200 <10 <10 250 76 118 18.5 <D.3 - 0.2 0.5 <10 <50 <10 QO <I.l <1.I Hall 11232009 923 510 8.0 266 72 21 98 2 200 <10 <10 250 76 118 19.4 m.3 - 0.2 0.5 QD <50 <10 QD <1.1 Q.1 Hall 5252010 921 530 74 271 74 21 99 2 200 <10 <10 240 74 120 20.9 <D.3 - 0.1 0.4 <10 <SO <10 QO <I.1 <l.I Hall 11/302010 890 540 7.4 269 73 21 94 2 190 <10 <10 230 73 106 16.9 <0.3 - 0.2 0.4 <10 <50 <10 30 <1.1 <1.1 Hall 5/232011 877 510 7.7 255 71 19 SI 2 190 <10 <10 230 76 1D6 15.8 <0.3 - 0.2 0.4 <10 50 <10 QO <1.1 <1.1 Hall It/172011 978 480 79 262 72 20 92 2 200 <10 <10 240 81 98 12.7 <O.3 - 0.2 0.5 <10 <50 <10 QO <I.I <I.1 Hall 5/312012 879 530 7.4 254 69 20 96 2 190 <10 <10 230 77 99 12.6 <0.1 - 0.2 0.4 <10 <50 <10 QO NS NS Hall 11202012 882 520 7.4 274 75 21 81 2 200 <10 <10 250 93 93 11.5 <9.I - 0.2 0.4 <10 <50 <10 QO <LI <1.1 Faulkner 611/1994 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 96 26 100 ND 240 ND ND 3DO 66 120 36 ND ND ND 0.5 ND ND ND ND Present' Absene Faulkner 111911995 1,000 600 7.4 310 90 25 92 ND 230 ND ND 290 72 130 30 ND ND 0.1 0.5 ND ND ND ND Abunt - Faullner 426/1995 1,000 600 76 290 79 23 97 ND 220 ND ND 270 74 140 25 ND ND ND 0.4 ND ND ND ND Absent - Faulkar 7/611995 980 600 75 290 72 23 98 ND 230 ND ND 290 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 OA ND ND ND ND Absent - &IMO PW 2 W 9