SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

MONITORING AND REPORT._ -i PROGRAM NO. -2 - SUPPORT 2 -SUPPORT TERMINALS OPERATING PARTNERSHIP,LP BULK FUEL TERMINAL#29 STOCKTON,SAN JOAQUIN COUNTY - Quarterly Semi-annuallyZ Annually3 Wells OW-6D,OW-7A,OW-7B,OW-7C,OW-7D,OW-8A, PS/MW-17,PS/MW-19, PS/WC-4M OW-8B,OW-8C,PS/MW-14,PS/MW-15,PS/P-11,PS/P-12, PS/P-21,PS/WC-2M, PS/P-13,PS/WC-2S,PS/WC-3M,PS/WC-3S,ST/MW-1, PS/WC-4S ST/WC-lA, ST/WC-113,ST/WC-1C,UP/MW-1,New Wells 1 All wells shall be monitored quarterly for water levels and the presence and thickness of free product. 2 Wells shall be sampled semi-annually during the first and third quarters. 3 Wells shall be sampled annually during the third quarter. Constituents EPA Analytical Method Maximum Detection Limit(µg/l)° Sampling Frequencys Depth to groundwater --- --- Quarterly TPH as diesel 8015M 50 Quarterly TPH as diesel 8015M 50 Quarterly Benzene 8020 or 8260B 0.5 Quarterly Toluene 8020 or 8260B 0.5 Quarterly Ethylbenzene 8020 or 8260B 0.5 Quarterly Xylenes 8020 or 8260B 0.5 Quarterly MTBE6 8260B 0.5 Quarterly TBA6 8260B 5 Quarterly TAME' 8260B 0.5 Quarterly DIPE6 8260B 0.5 Quarterly ETBE' 8260B 0.5 Quarterly Ethano16 8260B 50 Quarterly Methano16 8260B 100 Quarterly 4 For nondetectable results. 5 Groundwater level measurements for all STTC and Support Terminals Operating Partnership,LP monitoring wells shall be collected on the same day and all groundwater monitoring samples shall be collected during the same week. 6 Fuel oxygenates,including MTBE TBA DIPE tertiary amyl methyl ether(TAME),ethyl tertiary 1but1 ether (ETBE),ethanol,and methanol shall be analyzed in all monitoring wells during two monitoring events in the first and third quarters. If results are nondetectable for fuel oxygenates for both sampling events,no further monitoring for oxygenates is required in that well. If a fuel oxygenate is detected,it shall be added to the quarterly monitoring program for the well in which it was detected. Monitoring wells that have already eliminated fuel oxygenate monitoring based on the previous MRP requirements do not need to be resampled for fuel oxygenates. REPORTING When reporting the data, the Discharger shall arrange the information in tabular form so that the date, the constituents, and the concentrations are readily discernible. The data shall be summarized in such a manner as to illustrate clearly the compliance with this Order. In addition, the Discharger shall notify the Board within 48 hours of any unscheduled shutdown of any soil vapor and/or groundwater extraction system.