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REVISED MONITORING AND REPORTING PROGRAM ORDER NO. R5-2015-0012-003 <br />2 <br />DIAMOND FOODS INC., 1050 SOUTH DIAMOND STREET, STOCKTON, CA <br />IN-SITU REMEDIATION OF HEXAVALENT CHROMIUM <br />SAN JOAQUIN COUNTY <br />Table 1: Sampling Frequency and Constituent Suite <br />Well Numberl Frequency2 Constituent Suite(s)3 Monitoring Objective <br />MW-5, MW-7, <br />OBSW-S, and <br />OBSW-D <br />Baseline (prior to <br />injection), one, <br />three, and six <br />months after <br />injection for pilot <br />study. <br />Suites A, B, and Field <br />Sampling Treatment Zone <br />MW-10 <br />Baseline (prior to <br />injection), one, <br />three, and six <br />months after <br />injection for pilot <br />study. <br />Suites A, B, and Field <br />Sampling Compliance5 <br />MW-8 Baseline (prior to <br />injection) <br />Suites A, B, and Field <br />Sampling Background6 <br />1 Well numbers as shown on Figure 3. <br />2 i.e., weekly, monthly, quarterly, annually, other. <br />3 Constituent suite components listed in Table 2. <br />4 Wells sampled to evaluate in-situ bioremediation progress inside the treatment zone. <br />5 Well used to determine compliance with water groundwater limitations. <br />6 Well used to develop background concentrations. <br />Table 2: Analytical Methods <br />Constituent Method.' <br />Maximum Practical <br />Quantitation Limit <br />(ug/L)2 <br />Suite A <br />Sulfate EPA 6500 200 <br />Sulfide Hach Method 8131 30 <br />Suite B <br />Iron, Total and Dissolved EPA 200.7 100 <br />Ferrous and Ferric Iron EPA 200, 6020 or SM3000 100 <br />Hexavalent Chromium EPA 7199 0.3 <br />Phosphorous EPA 200.7, 365 1,000 <br />Metals, Total and Dissolved3 EPA 200.7, 200.8 Various <br />1 Or an equivalent EPA Method that achieves the maximum Practical Quantitation Limit. <br />2 All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be reported as <br />an estimated value. <br />3 Metals include barium cadmium, calcium, total chromium, copper, lead, magnesium, manganese, mercury, <br />molybdenum, nickel and silica.