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REVISED MONITORING AND REPORTING PROGRAM ORDER NO. R5-2015-0012-003 3 <br />DIAMOND FOODS INC., 1050 SOUTH DIAMOND STREET, STOCKTON, CA <br />IN-SITU REMEDIATION OF HEXAVALENT CHROMIUM <br />SAN JOAQUIN COUNTY <br />FIELD SAMPLING <br />In addition to the above sampling and analysis, field sampling and analysis shall be conducted <br />each time a monitoring well or extraction well is sampled. The sampling and analysis of field <br />parameters shall be as specified in Table 3. <br />Table 3: Field Sampling Requirements <br />Parameters Units Type of Sample <br />Groundwater Elevation Feet, Mean Sea Level Measurement <br />Oxidation-Reduction Potential Millivolts Grab <br />Electrical Conductivity uhmos/cm Grab <br />Dissolved Oxygen mg/L Grab <br />pH pH Units (to 0.1 units) Grab <br />Field test instruments (such as those used to test pH and dissolved oxygen) may be used <br />provided that: <br />The operator is trained in proper use and maintenance of the instruments; <br />The instruments are calibrated prior to each monitoring event; <br />Instruments are serviced and/or calibrated by the manufacturer at the recommended <br />frequency; and <br />Field calibration reports are submitted as described in item (b) of the "Reporting" section <br />of this MRP. <br />DISCHARGE MONITORING <br />The Discharger shall monitor daily the discharge of water and amendments that are injected <br />into the groundwater according to the requirements specified in Table 4. Each amendment <br />addition shall be recorded individually, along with information regarding the time period over <br />which the amendment was injected into the aquifer. <br />Table 4: Discharge Monitoring Requirements <br />Parameters Units Type of Sample <br />Injected Volume gallons per day Meter <br />Amendment(s) Added kilograms per day Measured