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Table 4 <br /> Historical Groundwater Quality Record <br /> Teichert Aggregates and Granite Construction -Vernalis Area, San Joaquin County <br /> (all units in MQ/L, unless otherwise specified) <br /> Total Total Coliform <br /> Sampling FC TDS pH Hardness Cs Mg No K Alkalinity OR CO3 HCO3 SOW CI NO3 NO2 P F 8 Cu Fe Mo 2.o Total Fecal <br /> Point Date taskal in CaCO3 ax CaCO3 as OR as CO3 as HCO3 as NO3 u NO2 ftWL) (u_/Lt (ARIL) t.en t tMPN/100 LI <br /> Maximum Conuminant 65t. <br /> Level' 900' 500' 8.5• - - 250• 250• 45 3 2 1000• 300• 50' 5000" <br /> Granite#3 5/25/2010 980 640 7.3 321 84 27 92 2 200 <10 <10 240 218 52 13.2 <0.3 - 0.2 IA <10 70 '10 QO - - <br /> Groins:#3 1130/2010 970 660 7.2 323 85 27 87 2 190 ,10 -10 240 211 51 13.4 101 - 0.2 1.1 <10 <50 <10 180 - - <br /> Grande#3 5(232011 877 570 6.9 291 77 24 79 2 180 <10 <10 220 181 45 16.5 <0.3 - 0.2 0.9 110 2,110 40 220 - - <br /> Grenne#3 II'I71201I 979 570 78 317 84 26 95 _ 190 10 X10 240 201 50 15.6 X03 - 0.1 LI 20 ]on 'In I80 - - <br /> Grwutc.3 5:31.2012 983 620 7.6 321 84 27 93 190 Ao -I0 230 211. 53 13.7 ;0.1 - 0.1 LI :10 �50 SID 40 NS NS <br /> Grusik#3 11202012 959 630 7.6 328 87 27 86 2 190 40 <10 240 205 51 14.2 X0.1 - 0.2 LI <10 <50 <I0 40 NS NS <br /> Gramlc 04 9142009 965 620 79 297 79 25 90 2 200 ,10 '10 240 211 48 12.1 -0.3 - 0.2 11 20 410 10 QO - - <br /> Koster 611/1994 800 490 7.7 240 61 23 94 ND 150 ND NO 180 96 70 31 NO ND 0.2 1.1 ND 470 50 ND - - <br /> Kostcr 10/4/1994 890 S00 7.7 230 62 19 87 ND 151 NO NO Igo 110 70 35 NO NO 0.2 I NO NO ND ND - - <br /> Koster 7/6/1995 820 510 76 230 61 19 78 ND 160 KI) NO 195 110 95 33 NO NO ND I NO 180 NO ND - - <br /> Kosler 10/1611996 840 500 7A 240 62 20 87 2 160 - - 200 100 98 32 - - 0.2 ND ND 100 ND ND - - <br /> Koster 419/1997 820 S00 68 240 64 19 85 2 170 ND ND 200 96 100 6.5 ND ND 0.5 1 NO 220 ND ND - - <br /> Koster 7/3/1997 810 SW 74 230 62 19 82 3 150 NO NO 180 98 95 28 ND ND 0.3 1 ND ND ND NO - - <br /> Ruston 3/1/1994 840 460 7.7 178 48 14 87 NO 174 No No 212 45 80 112 NO No 02 07 NO ND NO NO <br /> Notes: <br /> As of 2004,noft4owted values are given as',reporting limit'.NS-Not Sampled <br /> 1 Maximum wnmmuum levels for dnakulg water supply. Conxatratiam marked-w secondary,i e,wmumer accepsame limits for drinking water. For FC,TDS,chloride,and sulfate,the recommended(lou)values eregiven. <br /> 2 Retesting in November 1994 confirmed presence of Intal coliform bamerta and abserae of fecal coliform <br /> 3 Sample results for alkalinity swiss Itoml alkalinity,OR,CO3,and HCO3)were verified by duplicate sample results from independent laboratory. <br /> Patle�all'� <br />