SITE INFORMATION AND CORRESPONDENCE

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MONITORING AND REPOROG PROGRAM NO. R5-2007-0811 • -2 - LEPRINO FOODS COMPANY SAN JOAQUIN COUNTY The groundwater monitoring program for the 16 monitoring wells (all except those fitted with product skimming pumps, MW-7, and RW-4A) and any wells installed subsequent to the issuance of this MRP, shall follow the schedule below. Monitoring wells with free phase petroleum product or visible sheen shall be monitored, at a minimum, for product thickness and depth to water. Monitoring wells that have petroleum product skimming pumps installed shall only be monitored for amount of hydrocarbons recovered on a weekly basis. If product is found in monitoring wells, product removal shall occur until no measurable product remains in the well. The volume of extracted groundwater also shall be provided in quarterly monitoring reports. Sample collection and analysis shall follow standard Environmental Protection Agency (EPA) protocol. SAMPLING FREQUENCY Quarterly Semi-annually Wells New Wells MW-22, MW-5, MW-6, MW-82, MW-92, MW-102, MW-11, MW-14A, MW-162, MW-17, MW-18, MW-19, RW-1, RW-2, RW-32, RW-5A2 Wells shall be sampled semi-annually during the first and third quarters. 2 Wells shall be monitored for groundwater levels only. Constituents EPA Analytical Maximum Practical Method Quantitation Limit (pg/1), Depth to Groundwater --- --- Total Petroleum Hydrocarbons as diesel 8015M 50 For nondetectable results. All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be reported as trace. RECOVERY SYSTEM MONITORING Extraction wells EW-2 and EW-3 are pumping groundwater for gradient control and are recovering product. Monitoring wells MW-3, MW-4, RW-6 and RW-7 are recovering product. The Discharger shall maintain recovery system data sheets, which shall include the information listed below. • Date and time of measurement; • Rate of the product/groundwater extraction [gallons per minute (gpm)], • Appearance and/or odor of extracted water; • Cumulative volume of groundwater/product extracted (if measurable); 0 Volume of product recovered (if measurable);