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MONITORING AND REPORTING PROGRAM No. R5-2013-0122 MRP-3 GENERAL ORDER FOR EXISTING MILK COW DAIRIES Table 2. NUTRIENT MONITORING Process Wastewater Each application: Record the volume (gallons or acre-inches) and date of process wastewater application to each land application area. Quarterly during one application event: Field measurement of electrical conductivity. Laboratory analyses for nitrate-nitrogen (only when retention pond is aerated), un-ionized ammonia- nitrogen, total Kjeldahl nitrogen, total phosphorus, total potassium, and total dissolved solids. Once every two years (biennially): Laboratory analyses for general minerals (calcium, magnesium, sodium, bicarbonate, carbonate, sulfate, and chloride). Annually Laboratory analyses of liquid process wastewater, prior to blending with irrigation water, for pH, total dissolved solids, electrical conductivity, nitrate-nitrogen, ammonium-nitrogen, total Kjeldahl nitrogen, total phosphorus, and total potassium. Manure Once every two years (biennially): Laboratory analyses for general minerals (calcium, magnesium, sodium, sulfur, chloride)and fixed solids (ash). Twice per year: Laboratory analyses for total nitrogen, total phosphorus, total potassium, and percent moisture. Each application to each land application area: Record the percent moisture and total weight (tons) applied. Each offsite export of manure: Record the percent moisture and total weight (tons) exported. Laboratory analyses for percent moisture. Annually: Record the total dry weight (tons) of manure applied annually to each land application area and the total dry weight tons of manure exported offsite. Plant Tissue At harvest: Record the percent moisture and total weight (tons) of harvested material removed from each land application area. Laboratory analyses for total nitrogen, total phosphorus, total potassium (expressed on a dry weight basis), fixed solids (ash), and percent moisture. The following test is only required if the Discharger wants to add fertilizer in excess of 1.4 times the nitrogen expected to be removed by the harvested portion of the crop (see Attachment C of Order No. R5-2013-0122 for details): Mid-season, if necessary to assess the need for additional nitrogen fertilizer during the growing season. Laboratory analyses for total nitrogen, expressed on a dry weight basis.