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MONITORING AND REPORTING PROGRAM NO.R5-2002-0225 -3- ALPINE PACKING COMPANY, INC. WASTEWATER TREATMENT FACILITY SAN JOAQUIN COUNTY 2 Total nitrogen loading rates shall be calculated using the daily applied volume of wastewater, estimated daily application area, and the most recent results of total nitrogen. 3 Runoff monitoring of the land treatment unit shall be performed when irrigation of the area occurs. Frequency of monitoring during the day shall be sufficient to determine if runoff is occurring. In addition, the Discharger shall maintain a log of discharges to the land application area. Observations shall be noted and shall record which check is receiving wastewater, observations of ponding water, soil clogging, odors, insects, or other potential nuisance conditions. The notations shall also document any corrective actions taken. A copy of the notations recorded each month shall be submitted along with monthly monitoring reports. LAND TREATMENT UNIT SOILS MONITORING The Discharger shall establish, with concurrence of Board staff, four soil profile monitoring locations and one representative background location (i.e., in an area that historically has not received process wastewater) in the land treatment unit. The samples shall be collected and analyzed for at least the following constituents, and at the following frequency: Constituents Units Soil Profile Sampling and Re ortin Frequency Soil pH pH Standard' Annually, Volatile Solids % Total Weight Standard' Annually2 Cation Exchange Capacity meq/100 g Standard' Annually, Nitrate (as N) mg/kg Standard' Annually, Total Kjeldahl Nitrogen mg/kg Standard' Annually, ' Samples shall be collected at 0.5 feet, 3 feet, and 6 feet in depth. 2 Samples shall be collected in September. SOLIDS MONITORING The Discharger shall record and report monthly the quantity, disposal location, and method of disposal of any solids produced at the facility. GROUNDWATER MONITORING Prior to completion and/or sampling of any groundwater monitoring wells, the Discharger shall submit plans and specifications to the Regional 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 or purging, equilibrated groundwater elevations shall be measured to the nearest 0.01 foot. Depth to groundwater measurements shall be collected from all wells on the same day. The wells shall be purged at least three well volumes until pH and electrical conductivity have stabilized. Sample collection shall follow standard EPA analytical method protocols. Groundwater monitoring shall include, at a minimum, the following: