NR 204.06(1)(a)(a) The sources, processes and treatment systems at the treatment facility from which the sludge originates.
NR 204.06(1)(b)(b) Sludge treatment or processing techniques used prior to recycling or disposal.
NR 204.06(1)(c)(c) The mode of sludge transportation, including the name and telephone number of the transporter of the sludge, the type of vehicle used for sludge transportation and, when applicable, the methods used to apply the sludge to the site or field.
NR 204.06(1)(d)(d) The quantity of sludge that is generated and the quantity of sludge that is recycled or disposed of on a monthly and yearly basis.
NR 204.06(1)(e)(e) The available capacity of sludge storage, expressed as the number of days worth of sludge generation that can be stored.
NR 204.06(1)(f)(f) Whether the sludge is given away or sold in bulk, bag or other container.
NR 204.06(2)(2)Characteristics report.
NR 204.06(2)(a)(a) The permittee shall report the physical, chemical and biological characteristics of the sludge or finished sludge product. If a permittee generates more than one type of sludge, each sludge type shall be sampled and analyzed in accordance with the WPDES permit.
NR 204.06(2)(b)(b) A representative sample of the sludge shall be analyzed by the permittee as specified in the permit, for any or all of the following parameters, depending on the treatment facility size, processes used for treatment, methods of beneficial use or disposal, and characteristics of industrial discharges to the treatment facility:
NR 204.06(2)(b)1.1. Characteristics such as the percentage of total solids, volatile solids, pH and specific oxygen uptake rate (SOUR).
NR 204.06(2)(b)2.2. Nitrogen, phosphorus and potassium.
NR 204.06(2)(b)3.3. Arsenic, beryllium, cadmium, chromium, copper, lead, mercury, molybdenum, nickel, selenium and zinc.
NR 204.06(2)(b)4.4. Fecal coliform, salmonella, enteric viruses and viable helminth ova.
NR 204.06(2)(b)5.5. Selected phenolics, pesticides, toxic substances and persistent organics.
NR 204.06(2)(b)6.6. Priority pollutant scan.
NR 204.06(2)(b)7.7. Toxicity characteristics leaching procedure (TCLP) test if landfilling.
NR 204.06(2)(b)8.8. Paint filter test if landfilling.
NR 204.06(2)(b)9.9. Any other parameters which the department determines may be present in the sludge and which may result in detrimental effects to public health or the environment.
NR 204.06(2)(c)(c)
NR 204.06(2)(c)1.1. The frequency of monitoring for parameters, other than those specified in subds. 2. and 3., shall be as specified by the department in the WPDES permit.
NR 204.06(2)(c)2.2. Facilities with lagoon or other treatment systems which land apply sludge on an infrequent basis, such as every 10 to 20 years, shall sample their sludge once every 5 years, and analyze it for the metals listed in Table 1 of s. NR 204.07 (5) (a). This frequency may be increased by the department in the permit, and corrective measures such as industrial pretreatment may be required, if high metal concentrations are determined to be present, or potentially present, in the sludge.
NR 204.06(2)(c)3.3. The frequency of monitoring for arsenic, cadmium, copper, lead, mercury, molybdenum, nickel, selenium, zinc, pathogen or indicator organism densities, and vector attraction reduction requirements in sludge shall be based on the quantity of sludge land applied annually and determined by Table A. If sludge is landfilled under s. NR 204.08, the frequency of monitoring shall also be based on the quantity of sludge disposed of annually and determined by Table A:
- See PDF for table PDF
NR 204.06(2)(c)4.4. The amount of sludge per year which is actually land applied or landfilled shall determine the minimum monitoring frequency. If the applicable frequency of monitoring in subd. 3. is more than once per year, but land application is done only part of the year, the frequency of monitoring requirements may be reduced accordingly for nutrients, class B pathogen and vector attraction reduction requirements on a case-by-case basis in the permit by the department. Determinations shall be based on the facilities treatment process, the time of year land application occurs and the frequency at which the sludge is applied. In all cases, the intent is to have a representative analysis of the sludge which is actually being used. In all cases, the monitoring frequency indicated in subd. 3. for metals shall be adhered to, except as modified by subd. 5.
NR 204.06(2)(c)5.5. After 2 years of monitoring at the frequencies specified in subds. 3. and 4., the monitoring frequencies may be reduced at the permittee’s request and subject to department approval.
NR 204.06(2)(d)(d) The following procedures shall be used unless otherwise specified in the permit:
NR 204.06(2)(d)1.1. The sludge sample shall be collected at the point and in a manner which will yield sample results which are representative of the sludge being tested.
NR 204.06(2)(d)2.2. The methods of analysis for substances contained in sludge shall be those established in ch. NR 219.
NR 204.06(2)(d)3.3. The permittee shall submit actual lab reports along with the sludge characteristics report, and shall supply all information necessary for the department to evaluate the quality assurance and quality control procedures.