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REVISED MONITORING AND REPORTING PROGRAM NO. 93-112 -2- LODI VINTNERS,INC. SAN JOAQUIN COUNTY Constituent Units Type of Sampling Reporting Sample Frequency Frequency Freeboard feet (±0.1) Measurement Weekly Monthly pH1,2 pH Units Grab Weekly Monthly Odors -- Observation Weekly Monthly Electrical Conductivity 1,2 µmhos/cm Grab Weekly Monthly ' Samples shall be collected at a depth of one foot from each pond in use, opposite the inlet. Samples shall be collected between 0700 and 0900 hours. 2 If ponds do not contain wastewater,that shall be reported. EFFLUENT MONITORING Samples shall be collected from an established sampling station located in an area that will provide representative samples of the water in Pond No. I (the pond into which wastewater is first discharged). Samples shall be collected for each of the parameters listed below. Effluent monitoring of the pond shall include, at a minimum, the following: Constituent Units Type of Sampling Reporting Sample Frequency Frequency Biochemical Oxygen Demand' mg/L Grab Monthly Monthly Nitrate as Nitrogen' mg/L Grab Monthly Monthly Total Kjeldahl Nitrogen' mg/L Grab Monthly Monthly Total Dissolved Solids' mg/L Grab Monthly Monthly Fixed Dissolved Solids mg/L Grab Monthly Monthly Standard Minerals 1,2,3 mg/L Grab Quarterly Quarterly ' If the pond does not contain wastewater,that shall be reported. 2 Standard Minerals shall be sampled quarterly for eight consecutive quarters and then shall be sampled annually(during the fourth quarter of the year). 3 Standard Minerals shall include at least the following compounds: boron,calcium, iron,magnesium,manganese, potassium, sodium,chloride,sulfate,total alkalinity(including alkalinity series),and hardness. SOLIDS MONITORING The Discharger shall record and report monthly the quantity, disposal location, and method of disposal of solids disposed of during the processing season, as well as during the off-season, if applicable. If solid waste is shipped offsite, then an estimated amount of the material, the disposal location, and the waste hauler shall be reported in the monthly report. GROUNDWATER MONITORING Groundwater monitoring shall commence with the third quarter 2006. Prior to construction and/or sampling of any groundwater monitoring wells, the Discharger shall submit plans and specifications to the Regional Board for approval. Once installed, all new wells shall be added to the monitoring network and