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i 1 I I I I I I I d I 1 I I I I I 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 'fatal Coliform Sampling FC TDS pll Hardness Ca Mg Na A Alkalinity OH CO3 11CO3 SO4 Cl NO3 NO2 P F B C. Fe Mn Zn Total Feral Point Date (AS/rnl) as CaCO3 as CaCO3 as OH as CO3 as HCO3 as NO3 as NO2 (pg/L) (ULIL) (uv]I) rag(L) IMPN/100 L) Maximum Contaminant 6.5 to Level' 9D0+ 500+ 8.5+ 250' 250• 45 3 2 ID00+ 300* 50+ 5000+ Faulkner 8/21/2006 955 610 7.5 284 79 21 76 1 230 <10 <10 280 97 99 12.3 <0.3 - 0.2 0.4 - 10 -50 <IO QO <.1 - Faulkner 11/14/2006 945 580 7.5 304 84 23 82 2 230 Faulkner 2/13/2007 926 570 7.5 288 79 22 81 2 230 QO <10 280 98 99 12.3 0.3 - 0.3 0.33 -10 60 <10 QO <LI - Faulkner 5/29/2007 867 520 75 276. 76 21 79 2 220 <0 <10 270 88 84 11.9 11.3 -- .0 1 049 - 10 70 <10 QO <I.1 - Faulkner 8/14/2007 863 510 6.7 276 76 21 81 2 220 <10 <10 270 87 88 12.1 11.3 -- i)2 047 - l0 80 <10 QO <IA - Faulkner 11/262007 868 560 7.8 255 71 19 68 1 210 <to <10 260 87 92 11.8 0.3 -- 0A 0.4 .10 <50 <10 <20 -LI - Faulkner 2/42008 871 510 7.7 276 76 21 77 2 210 <to <10 260 94 91 1 18 0 3 -- 0.1 OA <10 <50 <0 QO <I.1 <I.1 Faulkner 5/1/2008 867 540 7.4 264 73 20 74 1 200 <IO <10 240 92 91 9.4 1i.3 -_ 0.2 0.3 <10 60 <10 QO <I.1 <I.1 Faulkner 8/26/2008 869 540 6.9 254 69 20 75 2 210 <10 <10 250 91 88 9.8 11.3 -_ 0.1 0.4 <10 60 <10 Q0 <1.1 <.1 Faulkner 11/25/2008 882 510 8.0 262 72 20 76 2 200 <10 <0 250 92 94 11.2 0.3 -- 0.1 0.4 <10 80 <10 QO <I.I <L1 Faulkner 2/10/2009 896 520 7.9 271 74 21 79 2 210 <10 <IO 250 92 92 12.0 03 - 0.1 0.4 <10 80 <10 QO <I.1 <LI Faulkner 5/5/2009 884 540 8.1 274 75 2I. 78 2 200 <10 10 250 92 96 12.6 03 - 0.2 0.5 <to 60 <10 QO <I.1 <I.I Faulkner 8/4/2009 870 540 8,0 269 75 20 78 2 200 <10 III 250 89 93 12.1 0.3 - 0.2 0.4 <10 60 <10 QO <LI <.1 Faulkner 11/23/2009 874 480 8,0 264 73 20 78 2 200 <10 '10 250 90 93 11 7 o.3 - 0-2 0.4 <10 110 <10 QO <1.1 <1.1 Faulkner 5/25/2010 853 510 7.4 264 73 20 77 2 190 <10 -:10 230 90 94 9A - ,3 - 0.2 0.3 <10 70 <10 QO <1.1 <.I Faulkner 11/30/2010 856 530 7.3 269 75 20 75 2 200 <10 10 240 85 88 9.4 x.0.3 - 0.1 0.4 <10 <50 <10 <20 <I.1 <LI S.Tracy#1 3/1/1994 920 540 7.5 239 59 22 79 NO 156 NO NO 190 110 57 43.3 NO NO 0.2 1 NO NO NO NO - - S.Tracy#1 6/1/1994 800 530 7.5 280 65 29 86 ND 150 NO ND 190 110 60 47 NO NO NO L1 NO ND NO NO - - S.Tracy 01 10/4/1994 840 500 7.5 250 60 23 78 NO 150 NO NO 180 120 70 50 NO NO 0.2 1 NO NO NO NO - - S.Tracy#1 1/19/1995 800 500 7.5 290 62 25 73 NO 150 NO NO 190 120 68 42 NO NO 0.3 1 NO 390 NO NO - -- S.Toe y#1 426/1995 800 520 To 240 58 23 70 NO 160 NO NO 200 120 51 45 NO NO 0.3 1 NO NO NO NO - - S.Tracy#1 7/6/1995 810 520 T5 260 65 23 69 3 170 NO NO 210 130 64 42 NO NO 0,1 1 NO NO NO NO -- - S. Frac y#1 11/11/1995 790 510 75 240 60 23 77 NO 180 NO NO 210 120 68 47 NO NO 02 (/.9 NO NO NO NO - - S.Tracv#I lill/1996 790 520 7.4 230 58 22 72 NO 190 NO NO 230 110 64 45 NO NO 0,7 1 NO 200 NO NO S.Tracy#1' 5/2/1996 800 470 74 260 59 28 74 3 170 NO NO 210 130 69 45 NO NO 0,5 1 NO NO NO NO - S.Tracy#1 7/10/1996 820 520 7.6 260 62 26 68 2 180 ND ND 210 130 66 47 NO NO 02 09 NO NO NO NO -S.Tracy#I IO/16/1996 800 480 7.3 250 61 25 73 3 170 NO ND 210 120 68 46 ND NO 0.2 ND NO 330 NO NO - -- S.Tracy#1 1/21/1997 790 500 7.8 244 60 23 66 2 160 NO ND 190 Ito 59 44 NO ND 0.2 1 NO 120 NO NO - S.Tracy#1 4/9/1997 790 500 6.6 250 64 23 72 2 170 NO ND 200 120 73 48 NO NO 0.5 1 NO NO NO NO -- -- S.Tracy#1 7/3/1997 790 550 7.3 260 64 24 69 1 170 NO NO 200 130 66 42 NO NO 03 1 ND NO NO NO -- - S.Tmcv#1 1/27/1998 800 460 74 240 60 22 66 2 160 NO NO 190 120 65 41 NO NO 0.3 1 NO 90 NO NO - S.Tracy#1 5/5/1998 800 520 7.6 250 61 23 71 2 160 NO NO 200 120 67 43 NO ND 0.3 1 NO NO ND NO -- - S.Tracy#1 8/4/1999 800 520 7.8 250 64 23 70 1 150 NO NO 190 120 68 44 NO NO 0.2 1 NO NO ND NO --S.Tracy#1 11/4/1998 810 480 7.5 250 62 23 72 2 160 NO NO 190 120 67 40 NO - 0.2 0.9 NO NO NO NO - - S.Tracy#1 22/1999 800 530 7.3 250 62 23 70 2 160 NO NO 200 1t0 63 40 NO - 0.3 0.9 NO NO NO NO - - S.Tracy#1 8/18/1999 804 490 7.7 245 62 22 69 1 160 NO ND 200 114 61 41.3 NO - 0.4 0.9 NO NO NO NO S.Tracy 91 11/17/1999 808 470 7.4 253 65 22 64 2 160 ND NO 200 121 64 415 NO - 0.4 1 NO NO NO NO - - fd9/?011-IILS]AM Page 4 of 4