ARCHIVED REPORTS 3RD QUARTER 2009 (1)

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August 10, 2009 Lab ID : STK0936708 Veolia Water NA-Lathrop-Crossroads Customer : 3-15058 Quality Control-Inorganic Constituent Method Date/1D Type Units Cone. QC Data DQO Note Metals Sodium 3010 07/29/2009:207872 PDS mg/L 12.50 96.2% 75-125 Wet Chem Solids,Total Dissolved 2540 C 07/29/2009:207891 Blank mg/L ND <20 LCS mg/L 995.0 98.4% 90-110 LCS mg/L 995.0 101% 90-110 Dup m 0.3% 10.0 Chloride 300.0 07/28/2009:207874 LCS mg/L 25.00 99.5% 90-110 MS mg/L 500.0 104% 86-128 (SP 0907439-001) MSD mg/L 500.0 104% 86-128 MSRPD mg/L 100.0 0.3% <23.0 300.0 07/28/2009:209626 CCB ppm 0.00 1 CCV ppm 25.00 102% 90-110 CCB ppm 0.00 1 CCV ppm 25.00 103% 90-110 CCB ppm 0.00 1 CCV ppm 25.00 102% 1 90-110 Nitrate 300.0 07/28/2009:207874 LCS mg/L 20.00 99.1% 90-110 MS mg/L 400.0 104% 88-124 (SP 0907439-001) MSD mg/L 400.0 104% 88-124 MSRPD mg/L 100.0 0.1% <29.1 300.0 07/28/2009:209626 CCB ppm 0.000 0.4 CCV ppm 20.00 102% 90-110 CCB ppm 0.000 0.4 CCV ppm 20.00 103% 90-110 CCB ppm 0.000 0.4 CCV PPM 20.00 101% 1 90-110 Nitrite 300.0 07/28/2009:207874 LCS mg/L 15.00 108% 90-110 MS mg/L 300.0 102% 91-121 (SP 0907439-001) MSD mg/L 300.0 101% 91-121 MSRPD m 100.0 1.2% <23.8 300.0 07/28/2009:209626 CCB ppm 0.000 0.3 CCV ppm 15.00 110% 90-110 CCB ppm 0.000 0.3 CCV ppm 15.00 109% 90-110 CCB ppm 0.000 0.3 CCV I PPM 15.00 109% 1 90-110 Nitrogen,Total Kjeldahl 351.1 08/05/2009:208155 Blank mg/L ND <1 LCS mg/L 10.00 81.9% 41-148 LCS mg/L 10.00 84.1% 41-148 MS mg/L 0.4000 141% 25-149 (STK0936708-001) MSD mg/L 0.4000 61.5% 25-149 MSRPD m 0.4000 0.32 <1 Ammonia Nitrogen 4500NH3B 08/05/2009:208158 Blank mg/L ND <0.2 LCS mg/L 10.00 78.3% 63-116 MS mg/L 0.4000 1130% <�/a (SP 0907379-001) MSD mg/L 0.4000 402% <1/4 MSRPD I m 0.4000 1 20.0% <80.2 4500NH3G 08/06/2009:210025 ICB mg/L -0.112 0.2 ICV mg/L 2.000 97.2% 90-110 CCB mg/L -0.116 0.2 CCV mg/L 2.000 98.0% 90-110 CCB mg/L -0.118 0.2 CCV mg/L 2.000 97.4% 90-110 CCB I m -0.111 1 0.2 Page 32 of 33