LAC 33:IX.7397. Procedure to Determine the Annual Whole Biosolids Application Rate (AWBAR)―Appendix A [Formerly §7131]

A. LAC 33:IX.7303.E.1.c.iv.(b) requires that the product of the concentration for each pollutant listed in Table 3 of LAC 33:IX.7303.F in biosolids sold or given away in a bag or other container for application to the land and the annual whole biosolids application rate (AWBAR) not cause the annual pollutant loading rate for the pollutant in Table 4 of LAC 33:IX.7303.F to be exceeded. This Appendix contains the procedure used to determine the AWBAR for a sewage sludge that does not cause the annual pollutant loading rates in Table 4 of LAC 33:IX.7303.F to be exceeded. B. The relationship between the annual pollutant loading rate (APLR) for a pollutant and the AWBAR is shown in Equation (1). Equation (1): where: APLR = annual pollutant loading rate in kilograms per hectare per 365-day period C = pollutant concentration in milligrams per kilogram of total solids (dry weight basis) AWBAR = annual whole biosolids application rate in metric tons per hectare per 365-day period (dry weight basis) 0.001 = a conversion factor C. To determine the AWBAR, Equation (1) is rearranged into Equation (2). Equation (2): D. The procedure used to determine the AWBAR is presented below. 1. Analyze a sample of the biosolids to determine the concentration for each of the pollutants listed in Table 3 of LAC 33:IX.7303.F in the biosolids. 2. Using the pollutant concentrations from Step 1 and the APLRs from Table 4 of LAC 33:IX.7303.F, calculate an AWBAR for each pollutant using Equation (2) above. 3. The AWBAR for the biosolids is the lowest AWBAR calculated in Step 2.