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PRECISION <br /> • � ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OF ANALYSIS <br /> 2T ursday,January 20,2005 <br /> Attention: Abby Racco <br /> Nei[O.Anderson&Associate Report Page 4of12 <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> Conventional Chemistry Parameters by APHA/EPA Methods <br /> Sample Information <br /> Sample ID: NOAMW2010605A,B,C,D,E Sample Type: Grab <br /> LaboratoryID: 5010612-01 Project Name: Chinchiolo,Stermilt <br /> Data,Time Sampled. 06-Jan-05 01:30 by Abby Racco Sample Matrix: Ground Water-Non Potable <br /> Test Parameter Result DLR Unit Dilution Batch Prepared Analysis Date Method Notes <br /> Total Alkalinity 445 1.00 mg/L 1 AA51211 06-Jan-05 06-Jen-05 EPA 310.7 <br /> Hydroxide Alkalinity 0.00 1.00 mg/L 1 Amuii 06-Jan-05 66-Jan-05 EPA 310.1 <br /> Bicarbonate Alkalinity 543 1.00 mg/L 1 AA51211 06-Jan-05 06-Jan-05 EPA 310.1 <br /> Carbonate Alkalinity 0.00 1.00 mg/L 1 AA51211 06-Jan-05 t76-Jan05 EPA 310.1 <br /> Ammonia as N ND - 0.2 mg/L 1 AA51406 14Jan-05 14-Jan-05 EPA 350.3 <br /> Boron No 100 ug/I 1 AA52004 20-Jan-05 20-Jan-05 EPA 200.7 <br /> .Calcium 10 1.0 mg/L 51018 10-J200.7 <br /> .Cal.. ... _1 ... 1 AA_._. _...an-05 12-Jan-05'.. EPA <br /> Chloride 23.9 _ 1.000 mg/L 1 AA50608 06-Jan-05 06-Jan-05 EPA 300.0 <br /> Specific Conductance(EC) 109D 1.00 umhos/cm 1 AA51210 06-Jan-05 06-Jan-05 EPA 120.1 <br /> .. _. .._ g .._ _..._ _..� .. <br /> Fluoride ND 1.00­mg/L 7 AA50608 O6-Jan-05 OB-Jan-05 EPA 300,0 <br /> Potassium 4.1 1.0 mg/L 1 AA51018 11-Jan-05 12-Jan-05 EPA 200.7 <br /> Magnesium 56 1.0 mg/L 1 AA51018 11-Jan-05 12-Jan-05 EPA 200.7 <br /> Sodium 34 _ 1.D mg/L _ 1 AA51018 11Jan-05 12Jan-05 EPA 200.7 <br /> Nitrate as NO3 130 1.00 mg/L 1 AA50608 06-Jan-05 06-Jan-05 EPA 300.0 <br /> Nitrate as N 29.4 0.200 mg/L 1 AA50608 06Jan-05 O6-Jan-OS EPA 300.0 <br /> Nitrite as N0_2 ND _0.500 mg/L _ 1 AA50608 06-Jan-05 06-Jan-05 EPA 300.0 <br /> Nitrite as N ND 0.20D mg/L 1 AA50608 O6-Jan-05 06-Jan-05 EPA300.0 <br /> PH 6.9 pH Units 1 AA51210 06-Jan-05 06-Jan-05 EPA 150.1 <br /> Total Dissolved_Solids 816 1.00 mg/L 1_ AA50709 07-Jan-OS 0 TJan-05 _ EPA 160.1 _ <br /> Total Nitrogen 31.2 0.600 mg/L 1 _ [CALC] 10-Jan-05_ 12-Jan-05 Calc. <br /> Total Anions 12.4 0.226 mg/L 1 [CALC] 10-Jan-05 _06-Jan-05 Calc. <br /> Total Cations 12 0.20 mg/L 1 [CALC] 10Jan-0512Jan-05 Cale. <br /> Total Hardness as(CaCO3) 510 6.6 mg/L 1 [CALC] 10-Jan-05 12-Jan-05 Calc. <br /> Sulfate as 504 35.9 _ 1.00 mg/L 1 AA50608 06-Jan-05 06-Jan-05 EPA 300.0 <br /> Total Kjeldahl Nitrogen 1.80 0.200 mg/L 1 AA51001 10-Jan-05 12-Jan-05 EPA 351.2 <br /> mgL=mdliglttmaperLitrr-Ppm DLX-Dmedion Dmttfarlurpose ofReporrmg. <br /> ugE=mmrog,m per Liter=ppb Eseeplional sample matfrc or imerfereem may <br /> result in higher deteclum limits. <br /> RESPECTFULLY SUBMITTED, <br /> Jonathan Le,Laboratory Director <br /> 7743 N. West Lane. Suite B2 Stockton CA. 95210 Dhone: (209) 477-8105 Fax: (209) 477-8148 <br />