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PRECISION <br /> ENVIRO-TECH <br /> Analytical Laboratory CERTIFICATE OFANALYSIS <br /> Thursday,February 3,2005 <br /> Attention: Abby Racco <br /> Neil O.Anderson &Associate <br /> Report Page/5°tib <br /> 902 Industrial Way <br /> Lodi, CA 95240 <br /> Conventional Chemistry Parameters by APBA/EPA Methods-Quality Control <br /> Precision Enviro-Tech <br /> Reporting Spike Source "'.RFC RPD <br /> p1 Result Limit Units level Result yRYC Limits RPD Limit Notes <br /> yte <br /> Batch AA52506-General Preparation <br /> Matrix Spike Dup(AA52506-MSD1) Source:5012502.01 Prepared&Analyzed_:25-Jan-05 _ <br /> Sulfate as SO4 41.9 1.00 mg/L 50.0 3.48 77 75.125 0.7 20 <br /> Fluoride 4.21 1.00 5.00 ND 84 75-125 1 20 <br /> Chloride 41.0 1.00 50.0 2.57 77 75.125 2 20 <br /> Nitrate as N 4.62 0.200 5.64 ND 82 75-125 8 20 <br /> Phosphate 19.8 0.500 25.0 ND 79 75.125 3 20 <br /> Nivate as NO3 20.5 1.00 25.0 ND 82 75-125 8 20 <br /> Nitrite as NO2 18.6 0.500 25.0 ND 74 70-110 0.5 20 <br /> Nitrite as N 5.58 0.200 7.45 ND 75 70-120 0.7 20 <br /> Reference(.AA52506-SRM1) _ Prepared&Analyzed:25-Jan-05 <br /> Fluoride 0.987 1.00 mg/L 1.15 86 80-110 <br /> Phosphate 3.32 0.500 3.79 88 80-110 <br /> Nitrite as N 1.61 0.200 1.93 83 80-110 <br /> Nitrite as NO2 5.38 0.500 6.45 83 80-110 <br /> Nitrate as N 3.30 0.200 3.45 96 80-110 <br /> Nitrate as NO3 14.6 1.00 15.3 95 80-110 <br /> Batch AA52508-EPA 200 Series <br /> Blank(AA52508-BLK_1) Prepared&Analyzed:25-Jan-OS ._ <br /> Calcium ND 1.0 mgt - <br /> Magnesium ND 1.0 " <br /> Sodium ND 1.0 " <br /> Potassium ND 1.0 " <br /> _LCS(AA52508-BSI) __, __ Prepared&Analyzed:25-Jan-05 <br /> Calcium 48.4 1.0 mg/L 50.0 97 80-120 <br /> Magnesium 44.7 LO 50.0 89 80-120 <br /> Sodium 49.1 1.0 50.0 98 80-120 <br /> Potassium 49.2 1.0 50.0 98 80-120 <br /> m�L-mi/ligrams per Liter-ppm ULA-Detec°an Li.'arte or <br /> ftd ld pa s may up/L-microgrcans perLiter=ppD Ilxcar m higher dee am Im or inrer/ercares may <br /> re�ull in higher delecti°n Itinvs. <br /> RESPECTFULLY SUBMITTED, <br /> V� <br /> Jonathan Le,Laboratory Director <br /> 1111 ar rrr.._. r _.... V-.'- DI o4 n4'?7n /?001 477_.Q705 Wny. /7/101 d77-RUR <br />