NR 665.1084(2)(h)2.2. Determine the waste volatile organic mass flow entering the process (Eb) and the waste volatile organic mass flow exiting the process (Ea) according to par. (e) 4. NR 665.1084(2)(h)3.3. Calculate the MR using the mass flow rate determined according to subd. 2. and the following equation: where:
MR = Actual organic mass removal rate, kg/hr
Eb = Waste volatile organic mass flow entering process determined according to par. (e) 4., kg/hr
Ea = Waste volatile organic mass flow exiting process determined according to par. (e) 4., kg/hr
NR 665.1084(2)(i)(i) Procedure to determine the actual organic mass biodegradation rate (MRbio) for a treated hazardous waste: NR 665.1084(2)(i)1.1. Determine the MRbio based on results for a minimum of 3 consecutive runs. The sampling time for each run shall be one hour. NR 665.1084(2)(i)4.4. Calculate the MRbio using the mass flow rates and fraction of organic biodegraded determined according to subds. 2. and 3., respectively, and the following equation: where:
MRbio = Actual organic mass biodegradation rate, kg/hr
Eb = Waste organic mass flow entering process determined according to par. (e) 4., kg/hr
Fbio = Fraction of organic biodegraded determined according to subd. 3.
NR 665.1084(3)(3) Procedure to determine the maximum organic vapor pressure of a hazardous waste in a tank. NR 665.1084(3)(a)(a) An owner or operator shall determine the maximum organic vapor pressure for each hazardous waste placed in a tank using Tank Level 1 controls according to the standards in s. NR 665.1085 (3). NR 665.1084(3)(b)(b) An owner or operator shall use either direct measurement as specified in par. (c) or knowledge of the waste as specified in par. (d) to determine the maximum organic vapor pressure which is representative of the hazardous waste composition stored or treated in the tank. NR 665.1084(3)(c)(c) If the owner or operator uses direct measurement to determine the maximum organic vapor pressure of a hazardous waste, the owner or operator shall do all of the following: NR 665.1084(3)(c)1.1. ‘Sampling.’ Collect a sufficient number of samples to be representative of the waste contained in the tank. Collect and handle all samples according to written procedures prepared by the owner or operator and documented in a site sampling plan. The plan shall describe the procedure for collecting representative samples of the hazardous waste which minimizes loss of organics throughout the sample collection and handling process and maintains sample integrity. Maintain a copy of the written sampling plan on-site in the facility operating records. An example of acceptable sample collection and handling procedures may be found in Method 25D in Appendix A of 40 CFR part 60, both incorporated by reference in s. NR 660.11. NR 665.1084(3)(c)2.2. ‘Analysis.’ Any appropriate one of the following methods may be used to analyze the samples and compute the maximum organic vapor pressure of the hazardous waste: NR 665.1084(3)(c)2.b.b. Methods described in American Petroleum Institute Publication 2517, Third Edition, February 1989, “Evaporative Loss from External Floating-Roof Tanks”, incorporated by reference in s. NR 660.11. NR 665.1084(3)(d)(d) If the owner or operator uses knowledge to determine the maximum organic vapor pressure of the hazardous waste, the owner or operator shall prepare and record documentation that presents the information used as the basis for the owner’s or operator’s knowledge that the maximum organic vapor pressure of the hazardous waste is less than the maximum vapor pressure limit listed in s. NR 665.1085 (2) (a) 1. for the applicable tank design capacity category. An example of information that may be used is documentation that the hazardous waste is generated by a process for which at other locations it previously has been determined by direct measurement that the waste maximum organic vapor pressure is less than the maximum vapor pressure limit for the appropriate tank design capacity category.