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REVISED MONITORING AND GORTING PROGRAM NO. 98-077 • -3- <br /> CHEROKEE FREIGHT LINES <br /> SAN JOAQUIN COUNTY <br /> 3 Total nitrogen applied from all sources,including fertilizers and supplemental irrigation water if used. <br /> 4 Report monthly total and cumulative annual to date. <br /> At least once per week when wastewater is being applied to the land application areas, the entire <br /> application area shall be inspected to identify any equipment malfunction or other circumstance that <br /> might allow irrigation runoff to leave the area and/or create ponding conditions. A log of these <br /> inspections shall be kept at the facility and be submitted with the monthly monitoring reports. <br /> SOLIDS MONITORING <br /> The Discharger shall record and report monthly the quantity, disposal location, and method of disposal <br /> of solids generated at the facility. For the purposes of this requirement, solids shall include any sludge, <br /> floatant, or screening generated at the trailer wash facility. <br /> GROUNDWATER MONITORING <br /> Groundwater monitoring shall commence with the Fourth Quarter 2004. Prior to construction and/or <br /> sampling of any groundwater monitoring wells, the Discharger shall submit plans and specifications to <br /> the Board for approval. Once installed, all new wells shall be added to the monitoring network and <br /> shall be sampled and analyzed according to the schedule below. All samples shall be collected using <br /> approved EPA methods. Water table elevations shall be calculated to determine groundwater gradient <br /> and direction of flow. <br /> Prior to sampling, the groundwater elevations shall be measured and the wells shall be purged at least <br /> three well volumes until temperature, pH, and electrical conductivity have stabilized. Depth to <br /> groundwater shall be measured to the nearest 0.01 feet. Groundwater monitoring shall include, at a <br /> minimum, the following: <br /> Type of Sampling Reporting <br /> Constituent Units Sample Frequency' Frequencv4 <br /> Depth to Groundwater ±0.01 feet Measurement Quarterly Quarterly <br /> Groundwater Elevations ±0.01 feet Calculated Quarterly Quarterly <br /> Gradient feet/feet Calculated Quarterly Quarterly <br /> Gradient Direction Degrees Calculated Quarterly Quarterly <br /> pH pH units Grab Quarterly Quarterly <br /> Specific Conductivity µmhos/cm Grab Quarterly Quarterly <br /> Nitrate as Nitrogen mg/L Grab Quarterly Quarterly <br /> Total Kjeldahl Nitrogen mg/L Grab Quarterly Quarterly <br /> Total Dissolved Solids mg/L Grab Quarterly Quarterly <br /> Standard MineralS2'3 mg/L Grab Annual Annual <br /> Trihalomethanes3 µg/L Grab Annual Annual <br /> Groundwater elevation shall be determined based on depth-to-water measurements from a surveyed measuring point <br /> elevation on the well. <br /> 2 Standard Minerals shall include at least the followingcompounds: boronchloride, calci <br /> mp , um,magnesium,potassium, <br /> sodium,sulfate,total alkalinity(including alkalinity series),and hardness. <br /> ' Standard Minerals and Trihalomethanes shall be analyzed in the fourth quarter of the year beginning in 2004. <br /> ° Beginning with the Fourth Quarter 2004. <br /> W1SulfObimTSm ImqumOiaokee FrtiyYiAafl 0.ev¢M MRP.tla[ <br />