7 Del. Admin. Code § 7103-137.0
Current through Register Vol. 28, No. 4, October 1, 2024
Section 7103-137.0 - General Operating Requirements137.1 Each person that conducts sludge utilization shall comply with all of the following: 137.1.1 The requirements of the Delaware Environmental Protection Act, 7Del.C., Ch. 60, these regulations and the additional operating requirements for the specific type of operation that are set forth in these regulations.137.1.2 The plans and specifications in the permit, the terms and conditions of the permit, and any orders issued by the Department.137.1.3 The Departmental regulations for agricultural utilization, unless the person is operating pursuant to a permit that allows use of the loading rate guidelines for land reclamation, utilization or disposal at landfills, research projects, land disposal, or sludge distribution program, in which case the person shall comply with the applicable guidelines for such operation.137.1.4 Prior to utilization all sewage sludge shall be stabilized according to a method specified in Section 131.0.137.1.5 Before sewage sludge subject to the cumulative pollutant loading rates in Table 402.4 is applied, the Applier shall contact the Department to determine whether sewage sludge subject to the cumulative pollutant loading rates in Table 402.4 has been applied to the site since July 20, 1993. 137.1.5.1 If such sewage sludge has not been applied to the site since July 20, 1993, the cumulative amount for each pollutant listed in Table 402.4 may be applied to the site in accordance with these Regulations.137.1.5.2 If such sewage sludge has been applied to the site since July 20, 1993, and the cumulative amount of each pollutant applied to the site in the sewage sludge since that date is known, the cumulative amount of each pollutant applied to the site shall be used to determine the additional amount of each pollutant that can be applied in accordance with Table 402.4.137.2 Monitoring requirements for all sludge utilization methods.137.2.1 The monitoring frequency for the parameters identified in SubSection 117.0 (Tables 402.2-402.3, 402.4, 402.5), 86.1, 87.1 and 88.2 shall be based on the amount of sewage sludge generated, prepared, or applied (in metric tons on a dry weight basis) per 365-day period as follows: 137.2.1.1 Greater than 0 but less than 290 - once per year137.2.1.2 Equal to or greater than 290 but less than 1,500 - once per quarter (four times a year)137.2.1.3 Equal to or greater than 1,500 but less than 15,000 - once per 60 days (six times per year)137.2.1.4 Equal to or greater than 15,000 - once per month (12 times per year)137.3 The Department may specify additional monitoring in any permit issued for the utilization of sludge.137.4 The Department may reduce the frequency of monitoring for the pollution concentrations in Section 115.0 and for the pathogen density requirements in Section 131.0 after two years of monitoring to a minimum of yearly monitoring unless otherwise specified in a sludge utilization permit.137.5 Sampling and analysis shall be conducted in accordance with the requirements of Section 151.0.137.6 The sludge generator shall submit to the Department, land applier and landowner annual copies of a chemical analysis of the sludge unless the Department approves a different schedule in the permit.137.7 The sludge generator shall perform and submit to the Department and landowner additional analyses as used in the permit application and design if there has been a significant change (greater than 25%) in the quality of sludge.137.8 The Department may modify the approved sludge application rate based upon review of continuing or additional analyses.7 Del. Admin. Code § 7103-137.0