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ARCADIS GERAGHTY&MILLER <br /> Table 6-1. Site wells not meeting General Basin Plan Water Quality Objectives. <br />' Parameter Basin Plan Site Wells Exceeding <br /> Objective Basin Plan Objectives <br />' Chloride 250,000 ug/L NP-2-22,NP-2-116 <br /> Iron 300 ug/L U-1*, U-2',U-3 , U-5*, U-6 , U-T, U <br />' 8% U-9% NP-1-22% NP-1-65% NP-1- <br /> I I I%NP-2-22%NP-2-116* <br />' Nitrate 45,000 ug/L U-4 <br /> Specific Conductance 900 umho/cm -1-22 NP-1-65 NP-1-111 NP-2- <br />' 22`,NP-2-60',NP-2-116* <br /> Total Dissolved Solids 500,000 ug/L U 1 , U 2 ,U-3 , U-4 , U-6 , U-7 , <br />! U-8 U-9—,�NP-1-221, NP-1-65*, - <br /> 1 11 t�-2-22 ,NP-2-116+ � <br /> Notes �.wells not meeting Basin Plan Objectives at momtonng event oondu ,11d li, 1998 <br /> t wells not meeting Basin Plan Objectives at sampling event condu December, 1 <br />' wells not meeting Basin Plan Objectives at momtonng event condu -571 <br />' Chlonde has been only been measured in the pair of three nested wells (NP-1 and NP- <br /> 2) Samples for chloride in water were collected at the NP-1 well nest during a samphng event <br />' conducted on December 14, 1998 The NP-2 well nest was sampled for chloride during the <br /> most recent quarterly groundwater monitoring event conducted on February 5, 1999 The <br />' MCL and Basin Plan Objective for chloride concentration was exceeded in two out of the six <br /> wells sampled and analyzed for chloride <br /> Well nest NP-1, comprised of well NP-1-22 (screened across the water table), well <br /> NP-1-65 (screened from 65 to 75 ft bgs), and well NP-1-111 (screened from 111-116 ft bgs) <br /> was examined for comparison of general water quality with depth Well nest NP-2, comprised <br /> of well NP-2-22 (screened across the water table),NP-2-60 (screened 60-70 ft bgs), and NP-2- <br /> 116 (screened 116-121 ft bgs) was also examined for a water quality comparison with depth <br />' 31 <br />