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A116 <br /> MONITORING AND REPORTING PR NO.5-00-113 -4- <br /> CLASS H SURFACE IMPOUNDMENT <br /> THE BURLINGTON NORTHER AND SANTA FE RAILWAY CO. <br /> STOCKTON INTERMODAL FACILITY <br /> SAN JOAQUIN COUNTY <br /> 3. Groundwater Monitoring <br /> The following monitoring program shall be implemented at the facility to determine compliance with the <br /> Water Quality Protection Standards, state action levels, and to monitor impacts to the groundwater by <br /> the surface impoundment. These WDRs require that a groundwater monitoring network will be <br /> established at the facility prior to discharging waste to a Class lI Surface Impoundment. At a minimum <br /> the groundwater monitoring network will consists of one upgradient background monitoring well and <br /> two monitoring wells located at the downgradient edge of the surface impoundment and one monitoring <br /> well located downgradient from the oil water separator. Board staff must approve monitoring well <br /> location and construction details prior to well installation. <br /> Groundwater elevation shall be measured quarterly in all monitoring wells at the facility. Groundwater <br /> elevations shall be plotted to produce a groundwater contour map. <br /> Each monitoring well shall be purged three times its well volume or until dry prior to sampling. Metal <br /> analysis shall be reported as dissolved (filter). The Discharger is required to perform sampling, analysis, <br /> and observations according to the schedule in Table 3. <br /> Table 3 - Groundwater Monitoring <br /> Parameters Units Frequency <br /> Field Parameter <br /> Groundwater Elevation Ft.,&hundredths,MSL Quarterly <br /> Temperature °C Semi-Annually <br /> Specific Conductance tunhos/cm Semi-Annually <br /> pH pH number Semi-Annually <br /> Monitoring Parameters <br /> Total Dissolved Solids mg/L Semi-Annually <br /> Chemical Oxygen Demand mg/L Semi-Annually <br /> TPH-diesel mg/L Semi-Annually <br /> TPH-oil&grease mg/L Semi-Annually <br /> Volatile Organic Compounds ug/L Semi-'Annually <br /> (EPA Method 8260,see Attachment C) <br /> Chloride mg/L Semi-Annually <br /> Sulfate mg/L Semi-Annually <br /> Nitrate-Nitrogen mg/L Semi-Annually <br /> Dissolved Metals (Barium, Copper,Lead, mg/L Semi-Annually <br /> &Zinc) <br />