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P <br /> HISTORICAL SUMMARY OF ANALYTICAL RESULTS <br /> GROUNDWATER <br /> FOOTHILL SANITARY LANDFILL <br /> MW-1 <br /> Units:mg/l,unless noted <br /> Sample Designation - <br /> Sampling Date 10/14/02 1/29/03 5/30/03 8/13/03 <br /> Constituents of Concern Parameters <br /> Chlorinated Herbicides <br /> (EPA Method 8150A Modified <br /> All Compounds NR NR___ NR_ NR <br /> metals <br /> luminum,D1ssolv-ea -__.__ _NR__ NR_._ NR_ NR ---- <br /> Antimony tiissolved NR —NR NR NR — — — — -- <br /> Arsenic,Disso ved NR NR NR NR <br /> Barium,Dissolved NR NR NR NR <br /> _e Ilium,Disso ved NR NR NR NR <br /> oron,Disso veR NR NR NRNR <br /> Ca m�—ium,Disso ve t�F�—NRN �— -- — <br /> rom um, ota isso ve N NR--ISR NR <br /> romwm exava ent NR---ISR--fit R NR <br /> o alt,D sso ve NR NR N NR <br /> --Copper,Dissolved N NR N <br /> Iron,Dissolved NR NR NR R <br /> Lead,Dissolve NR NR NR NR <br /> an anese, isso ve NIR NR NR NK <br /> mercury,Dissolved N NR NR NR <br /> Nickel,Dissolved NR NR NR NR <br /> Selenium,Dissolved NR NR NR NR <br /> Silver,Dissolved NR NR NR NR <br /> Thallium,Disso ved NR NR N_RN R _ <br /> Tm,Dtssoived NR NR NR NR <br /> anadwm,Dissolved NR NR NR NR <br /> Zinc,Dissolved— NR NR NR NR <br /> Total Alkalmi NR NM 97 96 <br /> Alkalinity,Bicarbonate NR NM 97 96 <br /> Alkalinity,Carbonate NR NM <0.5 <5.0 <br /> arnde R NR NR NR <br /> Sulfide NR NR NR NR <br /> otai Organic ar on ITR NR NR NR <br /> Trace Concentration <br /> [1j This analytical result appears to be anomalous and therefore was not used in statistical evaluation procedures. <br /> {1)Parameter also detected in one or more quality control blanks <br /> ND=Not Detected <br /> NM=Not Measured <br /> NR=Not Required <br /> 8 of 28 <br /> MW-1:Printed: 1/30/2004 <br />