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MONITORING AND REPORTING UROGRAM 00- - 8 CLASS II SURFACE IMPOUNDMENT THE BURLINGTON NORTHER AND SANTA FE RAILWAY CO . STOCKTON INTERMODAL FACILITY SAN JOAQUIN COUNTY facility by one of the following methods . These concentration limits shall be used as the basis of comparison with data from the Monitoring Points in that monitored medium . a . Calculation in accordance With a approved statistical method pursuant to Title 27 , Section 20415 ; or b . Calculation by a method acceptable to the Executive Officer in accordance with Title 27 Section 20415 ; or c . The constituent ' s MDL, in cases where less than 10 percent of the background samples exceed the constituent ' s MDL; or d . A concentration limit greater than background , as approved by the Board for use during or after corrective action . 3 . Monitoring Points These WDRs require the discharger to propose and install a groundwater monitoring system for this facility. Groundwater monitoring points for detection and evaluation monitoring shall be one or more background monitoring well, and two or more downgradient monitoring wells . Surface water monitoring points for detection monitoring shall be background surface monitoring points SM- 1 and SM-3 and downgradient surface monitoring points SM-2 and SM-4 . The unsaturated monitoring point for the detection monitoring shall be collected from the VZMS sump LS - 1 . 4 . Points of Compliance The points of compliance for groundwater are the downgradient monitoring wells . The points of compliance for surface water are monitoring stations SM-2 and SM-4 . The point of compliance for the unsaturated zone is LS - 1 . 5 . Compliance Period The Compliance period is the number of years equal to the active life of the surface impoundments plus the closure period. Each time the Water Quality Protection Standard is exceeded (i . e. , a release is discovered) , the surface impoundment begins a Compliance Period on the date the Board directs the Dischargers to begin an Evaluation Monitoring Program . If the Discharger ' s Corrective Action Program (CAP) has not achieved compliance with the Standard by the scheduled end of the Compliance Period, the Compliance Period is automatically extended until the surface impoundment has been in continuous compliance for at least three consecutive years . The Dischargers shall implement the above monitoring program on the effective date of this Order. Order by: GARY M . CARLTON, Executive Officer ( Date )