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MONITORING AND REPORTINO PROGRAM NO. 2 LINNE ESTATES LLC LINNE ESTATES WASTEWATER TREATMENT SYSTEM SAN JOAQUIN COUNTY Type of Sampling Reporting Constituents Units Sample Frequency Frequency Total Kjeldahl Nitrogen mg/L Grab Twice Monthly Monthly pH Std units Grab Twice Monthly Monthly Biochemical Oxygen Demand mcr Grab Monthly Monthly Total Dissolved Solids mg/L Grab Monthly Monthly Means of Disinfection) NA NA NA Monthly Standard Minerals mg/L Grab Annually Annually Means of Disinfection—The means of disinfection shall be stated in each monitoring report. Any use of chlorine during the reporting period shall be described. 2 Standard Minerals shall include,at a minim um, the following elements and compounds:Boron,Calcium,Iron, Magnesium,Manganese, Sodium,Potassium, Chloride, Sulfate,Total Alkalinity(including alkalinity series), and Hardness. DISPERSAL AREA MONITORING The Discharger shall conduct a visual inspection of the dispersal area on a weekly basis. Evidence of surfacing wastewater, field saturation, runoff, or the presence of nuisance conditions shall be noted in the report. If surfacing wastewater is observed, the condition shall be immediately reported to Board staff and the need for system repair evaluated. GROUNDWATER MONITORING The Discharger shall immediately begin monitoring groundwater with the existing wells (i.e., beginning with the third quarter 2004). Prior to construction of any additional groundwater monitoring wells, the Discharger shall submit plans and specifications to the Board for review and approval. Once installed, all new wells shall be added to the MRP, and shall be sampled and analyzed according to the schedule below. Prior to sampling, groundwater elevations shall be measured and the wells shall be purged at least three well volumes until pH and electrical conductivity have stabilized. Depth to groundwater shall be measured to the nearest 0.01 feet. Water table elevations shall be calculated. Samples shall be collected using approved EPA methods. Groundwater monitoring shall include, at a minimum, the following: Type of Sampling and Reporting Constituent Units Sample Fre uenc Groundwater Elevation 0.01 Feet Measurement Quarterly Depth to Groundwater 0.01 Feet Calculated Quarterly Gradient Feet/Feet Calculated Quarterly Gradient Direction degrees Calculated Quarterly PH S.U. Grab Quarterly Total Dissolved Solids mg/L Grab Quarterly WASiafl\0b,iuiTSm loaq.b Uz—Eml.Uinn NW.d.