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MONITORING AND REPORTING PRO" "5" <br /> NO. 5-00-113 • <br /> CLASS II SURFACE IMPOUNDMENT <br /> THE BURLINGTON NORTHER AND SANTA FE RAILWAY CO. <br /> STOCKTON INTERMODAL FACILITY <br /> SAN JOAQUIN COUNTY <br /> 4. Vadose Zone Monitoring <br /> The vadose zone monitoring system (VZMS) consists of a geonet drainage layer under the entire area of <br /> the surface impoundment. The VZMS sump shall be inspected quarterly for leachate. In any quarter in <br /> which leachate is detected in the VZMS sump grab samples shall be collected and analyzed for the <br /> parameters in Table 4. <br /> Table 4-Vadose Zone Monitoring <br /> Parameters Units Frequency <br /> Field Parameter <br /> Flow Rate gallons/month. Monthly <br /> Temperature °C Quarterly <br /> Specific Conductance umhos/cm Quarterly <br /> pH pH number Quarterly <br /> Monitoring Parameters <br /> Total Dissolved Solids mg/L Quarterly <br /> TPH-diesel mg/L Quarterly <br /> TPH-oil&grease mg/L Quarterly <br /> Volatile Organic Compounds ug/L Quarterly <br /> (EPA Method 8260,see Attachment C) <br /> Chloride mg/L Quarterly <br /> Sulfate mg/L Quarterly <br /> Nitrate -Nitrogen mg/L Quarterly <br /> Dissolved Metals(Barium, Copper, Lead, mg/L Quarterly <br /> &Zinc) <br />