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MONITORING AND REPORTING PROGRAM NO.5-00-113 -4- <br /> CLASS U SURFACE M4PO'UNDMENT <br /> THE BURLINGTON NORTHER AND SANTA FE RAIL AY CO. <br /> STOCKTON INTERMODAA.L FACILITY <br /> SAN JOAQUIN COUNTY i <br /> i <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 wase to a Class II Surface Impoundment. At a minimum. <br /> the groundwater rnonitoring network will consists of one upgradient background monitoring well and <br /> thvo monitoring wells located at the downgradient edge of the surface impoundment and one monitoring <br /> well located downgradient from the oil water sep ator. 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 dissolv6d (filter). The Discharger is required to perforin sampling, analysis, <br /> and observations according to the schedule in Table 3, <br /> Table 3- Groundwater Monitoring <br /> Parameters Units Frequency <br /> Field Yarameter <br /> Groundwater Elevation . Ft.,&hundredths,MSL Quarterly <br /> Temperature j °C Semi-Aroually <br /> Specific Conductance umhos/em Semi-Annually <br /> PE( ply 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-od&grease mg/L Semi-Annually <br /> Volatile Organic Compounds ug/L Semi=A„anually <br /> (EPA Method 8260,see Attachment C) <br /> Chloride mg/L Serni-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 /> 61 'd 8V:VT 00, ZZ inE <br />