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` MONITORING AND REPORTINGIRER NO. R5-2011-0815 • -3- DIAMOND 3- DIAMOND FOODS, INC. SAN JOAQUIN COUNTY REQUIRED ACTIONS IT IS HEREBY ORDERED that, pursuant to California Water Code section 13267, Diamond Foods, Inc. shall conduct monitoring and reporting in compliance with the following: Monitoring Specifications 1. The Discharger shall implement monitoring according to the schedule shown in Table 1. There are nine monitoring wells as shown in Figure 1 associated with the site. This Monitoring Order applies to these nine wells and any monitoring wells installed subsequent to the issuance of this Order. The Discharger shall collect samples using standard Environmental Protection Agency (EPA) protocol. Table 1. Monitoring Frequency Semi-annually Annually2 Wells MW-1, MW-2, MW-3, MWA MW4 MW-5, MW-6, MW -7, MW-8, MW-9 1 Wells that must be sampled semi-annually shall be sampled during the first (January-March) and third (July-September) quarters. 2 Wells that must be shall be sampled annually shall be sampled during the third quarter. s Analysis for VOCs 2. The Discharger shall analyze samples according to standard Environmental Protection Agency (EPA) protocol using the methods shown in Table 2. Example Table 2. Analytical Methods Analytical Maximum Practical Sampling Constituents Method Quantitation Limit 4 Frequency Depth to Groundwater - --- Semi-annually pH, temperature, electrical Field Meter Varies Semi-annually conductivity Aluminum 6010B 50 pg/L Semi-annually Calcium 200.7 5.0 mg/L Semi-annually Chloride 300 2.5 mg/L Semi-annually Hexavalent Chromium 7199 0.5 pg/L Semi-annually Total Chromium 200.8 0.5 pg/L Semi-annually Volatile Organic Compounds 82608 0.5 pg/L Annually 4 If the maximum practical quantitation limit is exceeded for a non-detectable result, the Discharger shall provide an explanation in the report text. All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be reported as trace.