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REVISED MONITORING AND REPORTING PROGRAM ORDER NO.R5-2008-0148 -4- LAWRENCE LIVERMORE NATIONAL SECURITY,LLC AND THE U.S. DEPARTMENT OF ENERGY FOR LAWRENCE LIVERMORE NATIONAL LABORATORY SITE 300 SAN JOAQUIN AND ALAMEDA COUNTIES Table 2 continued. Sewage ponds groundwater analytes, analytical methods and re ortin limits EPA (E) or Reporting Anal to Standard Method SM Limit2 Units 7Arsenic E200.8 0.002 m /L Barium E200.7 or E200.8 0.025 m /L Boron E200.7 0.05 m /L Cadmium E200.8 or 3113B 0.05 m /L Calcium E200.7 0.5 m /L Chromium E200.8 or 3113B 0.001 m /L Chromium NO E218.6, 7199 or E200.8 0.001 m /L Copper E220.2 or E200.8 0.001 m /L Iron E200.7 0.1 mg//L Lead E239.2 or E200.8 0.005 m /L Magnesium E200.7 0.5 mg/ L Manganese E200.7 or E200.8 0.03 m /L Mercwy SM3112B or E245.2 0.0002 m /L Molybdenum E200.7 or E200.8 0.025 m /L Nickel E249.2 or E200.8 0.002 m /L Potassium E200.7 1 m /L Selenium E270.2 or E270.3 or E200.8 0.002 m /L Silver SM3113B, E200.8, or E200.7 0.01 m /L Sodium E200.7 11 m /L Vanadium E200.7 or E200.8 0.02 m /L Zinc E200.7 or E200.8 0.02 m /L Or equivalent method as approved by the Central Valley Water Board. 2 All detections between the reporting limit and detection limit shall be reported as estimated with a"J" flag. PERCOLATION PIT INSPECTIONS 8. The Discharger shall inspect monthly the five mechanical equipment percolation pits located at Buildings 806A, 827 A, C, D, and E to verify that they are operating properly. If standing water is visible during the quarterly inspection, the Discharger shall increase the inspection frequency to weekly until no standing water is visible. 9. The Discharger shall inspect monthly the seven cooling tower percolation pits located at Buildings 801, 809, 812, 817A, 826, 827A, and 851. If standing water is visible during the quarterly inspection the Discharger shall increase the inspection frequency to weekly until no standing water is visible. The more frequent inspections are required at percolation pits with standing water in order to prevent overflow of the percolation pits.