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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> REVISED MONITORING AND REPORTING PROGRAM NO. 93-112 <br /> FOR <br /> LODI VINTNERS, INC. <br /> SAN JOAQUIN COUNTY <br /> This Revised Monitoring and Reporting Program (MRP) incorporates requirements for monitoring <br /> process wastewater,wastewater ponds, solid waste, and groundwater. This MRP is issued pursuant to <br /> Water Code Section 13267. The Discharger shall not implement any changes to this MRP unless and <br /> until a revised MRP is issued by the Executive Officer. <br /> All samples should be representative of the volume and nature of the discharge. The time, date, and <br /> location of each sample shall be recorded on the sample chain of custody form. Process wastewater flow <br /> monitoring shall be conducted continuously using a flow meter and shall be reported in cumulative <br /> gallons per day. <br /> Field test instruments (such as those used to measure pH and dissolved oxygen) may be used provided <br /> that: <br /> 1. The operator is trained in the proper use of the instrument; <br /> 2. The instruments are field calibrated prior to each use; <br /> 3. Instruments are serviced and/or calibrated by the manufacturer at the recommended frequency; and <br /> 4. Field calibration reports are submitted as described in the "Reporting" section of this MRP. <br /> INFLUENT MONITORING <br /> The process wastewater flow rate shall be metered prior to entering the wastewater ponds. Influent <br /> monitoring for the process wastewater system shall include at least the following: <br /> Constituents Units Tyne of Sample Sampling Frequency Reporting Frequency <br /> Flow gallons Continuous Dailyl Monthly <br /> Continuous monitoring requires daily meter reading or automated data collection. <br /> POND MONITORING <br /> Samples shall be collected from established sampling stations located in areas that will provide <br /> representative samples of the water in each wastewater pond. Samples shall be collected for each of the <br /> parameters listed below. Freeboard shall be measured vertically from the surface of the pond water to the <br /> lowest elevation of the surrounding berm and shall be measured to the nearest 0.1 feet. Monitoring of the <br /> ponds shall include, at a minimum, the following: <br /> Constituent Units Type of Sampling Reporting <br /> Sample Frequency Frequency <br /> Dissolved Oxygen"2 mg/L Grab Weekly Monthly <br />