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�BISCTAf7CA Anion-Cation(Mass)Balance <br /> • Method Standard Methods 18th Ed,1030F <br /> nvironmenta! <br /> Laboratorles, Inc. <br /> Work Order No 04-08-0882 4C Addendum <br /> Client Sample Number MW-9 <br /> Laboratory Number 04-08-0882 1 <br /> Anions Result meglL <br /> (mglL) <br /> Alkalinity(as CaCO32 ) 870 1738 <br /> Chloride(Cl } 180 SOB <br /> Fluonde(F ) 0 000 <br /> Nitrate(NO, } 000 000 <br /> Sulfate(S042 ) 140 291 <br /> S Anions 2538 <br /> Cations <br /> Calcium(Ca?*) 115 574 <br /> Iron(Fe") 0 693 004 <br /> Magnesium(Mg2') 543 447 <br /> Potassium(K`) 242 006 <br /> Sodium(Na') 342 14 a@ <br /> 5 Cations 2518 <br /> Anion Sum Acceptable Status <br /> Anion-Cation Balance (mag/L) %Difference• %Difference <br /> Note Per SMW W 171h and subsequent edilions Percent <br /> Difference(%D)is calculated as tallows <br /> 8k0=100(()Cations L4nions)I(ECatlons+FAnionsy] o-3 0 NA +1 0 2 meglL NA <br /> -Evaluation cntena(AcceclaNe%D)have <br /> been adjusted accordingly 30100 NA 1 +1_2% NA <br /> 100800 039 +1_5% Acceptable <br /> METHOD CHECK INFORMATION <br /> Result Units <br /> MEASURED CHECK VALUES <br /> Total Dissolved Solids(TDS) 1 300 mg1L <br /> Electrical Conducbvtty(EC) Vat Analyzed umhoslcm <br /> CALCULATED CHECK VALUES <br /> Electrical Conductivity(EC) 1840 umhoslcm <br /> Total Dissolved Solids(TDS) 9,356 mglL <br /> CHECK CRITERIA AND RATIOS Ratio Criteria Status <br /> Measured TDS I Calculated TDS 095 1 0<x 02 Out of Control <br /> Ratio Calcaled EC I Measured EC NA 0 9<x<1 1 <br /> Ratio Anion Sum 1 Measured EC NA 0 9<x<1 1 <br /> Ratio Cation Sum(Measured EC NA 0 9<x<9 1 <br /> Ratio Calculated TDS I Measured EC NA 0 55<x<0 7 <br /> Ratio Measured TDS I Measured EC NA 0 55<x<0 7 <br /> NOTES/Evaluation <br /> AnlonlCation balance is within acceptable limits Soma supporting check criteria were outside accepted margins If ion ratios are <br /> out of control reanalysis is probably unnecessary Check measured(TDS)data for error,reported value may be too low <br /> i7440 Lincoln Way, Garden Grove, CA 92841-1427 a TEL (714)895-5494 FAX (714) 1394-7501 <br />