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MONITORING AND REPORTING PROGRAM NO. 90-312 AND 90-313 3 <br /> CITY OF LOCKEFORD <br /> WASTEWATER TREATMENT FACILITY <br /> SAN JOAQUIN COUNTY <br /> Type of Sampling Reporting <br /> Constituent Units Sample Frequency Frequency <br /> Flow Gallons Continuous Daily Monthly <br /> Acreage Applied 1 Acres Calculated Daily Monthly <br /> Water Application Rate 2 gal/acre-day Calculated Daily Monthly <br /> Total Nitrogen Loading Rate 2 lbs/ac-month Calculated Monthly Monthly <br /> Total Dissolved Solids Loading Rate 2 lbs/ac-month Calculated Monthly Monthly <br /> Land application areas shall be identified and a map identifying all land application areas included. <br /> Z For each land application area. <br /> GROUNDWATER MONITORING <br /> Prior to construction and/or sampling of any groundwater monitoring wells, the Discharger shall submit <br /> plans and specifications to the Board for review and approval. All wells identified in the groundwater <br /> monitoring well network shall be sampled and analyzed according to the schedule below. Prior to <br /> sampling, the groundwater elevations shall be measured and the wells shall be purged of at least three <br /> well volumes or until temperature, pH, and electrical conductivity have stabilized. Depth to <br /> groundwater shall be measured to the nearest 0.01 feet. Samples shall be collected using standard EPA <br /> methods. Groundwater monitoring shall include, at a minimum, the following: <br /> Sampling and <br /> Constituent Units Type of Sample Reporting Frequency <br /> Depth to Groundwater 0.01 feet Measurement Quarterly <br /> Groundwater Elevation 1 0.01 feet Calculated Quarterly <br /> Gradient feet/feet Calculated Quarterly <br /> Gradient Direction describe Calculated Quarterly <br /> Total Dissolved Solids mg/L Grab Quarterly <br /> Nitrate as Nitrogen mg/L Grab Quarterly <br /> Total Kjeldahl Nitrogen mg/L Grab Quarterly <br /> pH pH units Grab Quarterly <br /> Total Coliform Organisms MPN/100 mL 2 Grab Quarterly <br /> Standard Minerals 3 mg/L Grab Quarterly 4 <br /> 1 Groundwater elevation shall be determined based on depth-to-water measurements using a surveyed measuring <br /> point elevation on the well and a surveyed reference elevation. <br /> Z MPN/100 mL denotes Most Probable Number per 100 mL. <br /> 3 Standard Minerals shall include, at a minimum,the following elements/compounds: boron, calcium,chloride, iron, <br /> magnesium,manganese,potassium, sodium, sulfate,total alkalinity(including alkalinity series),and hardness. <br /> 4 Standard Minerals shall be monitored quarterly for the first eight sample events;then the sampling and reporting <br /> frequency shall be reduced to annually. <br />