Ci = Measured VO concentration of material determination “i” as determined in accordance with the requirements specified in subd. 3., which is the average of the 4 or more samples specified in subd. 2. b., ppmw.
NR 661.1083(1)(c)4.b.b. For the purpose of determining Ci, for individual material samples analyzed in accordance with subd. 3., the remanufacturer or other person that stores or treats the hazardous secondary material shall account for VO concentrations determined to be below the limit of detection of the analytical method by using the following VO concentration: 1) If Method 25D in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11, is used for the analysis, one-half the blank value determined in the method at Section 4.4 of Method 25D in appendix A of 40 CFR part 60. 2) If any other analytical method is used, one-half the sum of the limits of detection established for each organic constituent in the material that has a Henry’s law constant values at least 0.1 mole-fraction-in-the-gas-phase/mole-fraction-in-the-liquid-phase (0.1 Y/X), which can also be expressed as 1.8 x 10-6atmospheres/gram-mole/m3 , at 25°C.
NR 661.1083(1)(d)(d) Use of knowledge by the remanufacturer or other person that stores or treats the hazardous secondary material to determine average VO concentration of a hazardous secondary material at the point of material origination. NR 661.1083(1)(d)1.1. The remanufacturer or other person that stores or treats the hazardous secondary material shall prepare documentation that presents the information used as the basis for the knowledge of the hazardous secondary material stream’s average VO concentration. Examples of information that may be used as the basis for knowledge include material balances for the source or process generating the hazardous secondary material stream; constituent-specific chemical test data for the hazardous secondary material stream from previous testing that are still applicable to the current material stream; previous test data for other locations managing the same type of material stream; or other knowledge based on information included in shipping papers or material certification notices. NR 661.1083(1)(d)2.2. If test data are used as the basis for knowledge, then the remanufacturer or other person that stores or treats the hazardous secondary material shall document the test method, sampling protocol, and the means by which sampling variability and analytical variability are accounted for in the determination of the average VO concentration. For example, a remanufacturer or other person that stores or treats the hazardous secondary material may use organic concentration test data for the hazardous secondary material stream that are validated in accordance with Method 301 in appendix A of 40 CFR part 63, incorporated by reference in s. NR 660.11, as the basis for knowledge of the waste. NR 661.1083(1)(d)3.3. A remanufacturer or other person that stores or treats the hazardous secondary material using chemical constituent-specific concentration test data as the basis for knowledge of the hazardous secondary material may adjust the test data to the corresponding average VO concentration value that would have been obtained had the material samples been analyzed using Method 25D in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. To adjust these data, the measured concentration for each individual chemical constituent contained in the material is multiplied by the appropriate constituent-specific adjustment factor (fm25D). NR 661.1083(1)(d)4.4. In the event that the department and the remanufacturer or other person that stores or treats the hazardous secondary material disagree on a determination of the average VO concentration for a hazardous secondary material stream using knowledge, then the results from a determination of average VO concentration using direct measurement as specified in par. (c) shall be used to establish compliance with the applicable requirements of this subchapter. The department may perform or request that the remanufacturer or other person that stores or treats the hazardous secondary material perform this determination using direct measurement. The remanufacturer or other person that stores or treats the hazardous secondary material may choose one or more appropriate methods to analyze each collected sample in accordance with the requirements specified in par. (c) 3. NR 661.1083(3)(3) Procedure to determine the maximum organic vapor pressure of a hazardous secondary material in a tank. NR 661.1083(3)(a)(a) A remanufacturer or other person that stores or treats hazardous secondary material shall determine the maximum organic vapor pressure for each hazardous secondary material placed in a tank using Tank Level 1 controls in accordance with standards specified in s. NR 661.1084 (3). NR 661.1083(3)(b)(b) A remanufacturer or other person that stores or treats hazardous secondary material 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 that is representative of the hazardous secondary material composition stored or treated in the tank. NR 661.1083(3)(c)(c) Direct measurement to determine the maximum organic vapor pressure of a hazardous secondary material shall be conducted using all of the following procedures: NR 661.1083(3)(c)1.1. A sufficient number of samples shall be collected to be representative of the hazardous secondary material contained in the tank. All samples shall be collected and handled in accordance with written procedures prepared by the remanufacturer or other person that stores or treats the hazardous secondary material and documented in a site sampling plan. This plan shall describe the procedure by which representative samples of the hazardous secondary material are collected such that a minimum loss of organics occurs throughout the sample collection and handling process and by which sample integrity is maintained. A copy of the written sampling plan shall be maintained at the facility. An example of acceptable sample collection and handling procedures may be found in Method 25D in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. NR 661.1083(3)(c)2.2. Any appropriate one of the following methods may be used to analyze the samples and compute the maximum organic vapor pressure of the hazardous secondary material: NR 661.1083(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 661.1083(3)(d)(d) A remanufacturer or other person that stores or treats hazardous secondary material may use knowledge to determine the maximum organic vapor pressure of the hazardous secondary material. Documentation shall be prepared and recorded that presents the information used as the basis for the knowledge by the remanufacturer or other person that stores or treats the hazardous secondary material that the maximum organic vapor pressure of the hazardous secondary material is less than the maximum vapor pressure limit specified in s. NR 661.1084 (2) (a) 1. for the applicable tank design capacity category. An example of information that may be used is documentation that the hazardous secondary material is generated by a process for which at other locations it previously has been determined by direct measurement that the hazardous secondary material’s waste maximum organic vapor pressure is less than the maximum vapor pressure limit for the appropriate tank design capacity category. NR 661.1083(4)(4) Procedure for determining no detectable organic emissions for the purpose of complying with this subchapter. NR 661.1083(4)(a)(a) A remanufacturer or other person that stores or treats hazardous secondary material shall conduct a test to determine no detectable organic emissions for the purpose of complying with this chapter in accordance with the procedures specified in Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. Each potential leak interface, a location where organic vapor leakage could occur, on the cover and associated closure devices shall be checked. Potential leak interfaces that are associated with covers and closure devices include the interface of the cover and its foundation mounting, the periphery of any opening on the cover and its associated closure device, and the sealing seat interface on a spring-loaded pressure relief valve. NR 661.1083(4)(b)(b) The test shall be performed when the unit contains a hazardous secondary material having an organic concentration representative of the range of concentrations for the hazardous secondary material expected to be managed in the unit. During the test, the cover and closure devices shall be secured in the closed position. NR 661.1083(4)(c)(c) The detection instrument shall meet the performance criteria of Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11, except the instrument response factor criteria in Section 3.1.2(a) of Method 21 shall be for the average composition of the organic constituents in the hazardous secondary material placed in the hazardous secondary management unit, not for each individual organic constituent. NR 661.1083(4)(d)(d) The detection instrument shall be calibrated before use on each day of its use by the procedures specified in Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. NR 661.1083(4)(e)2.2. A mixture of methane or n-hexane and air at a concentration of approximately, but less than, 10,000 ppmv methane or n-hexane. NR 661.1083(4)(g)(g) Each potential leak interface shall be checked by traversing the instrument probe around the potential leak interface as close to the interface as possible, as described in Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11. In the case when the configuration of the cover or closure device prevents a complete traverse of the interface, all accessible portions of the interface shall be sampled. In the case when the configuration of the closure device prevents any sampling at the interface and the device is equipped with an enclosed extension or horn, such as some pressure relief devices, the instrument probe inlet shall be placed at approximately the center of the exhaust area to the atmosphere. NR 661.1083(4)(h)(h) The arithmetic difference between the maximum organic concentration indicated by the instrument and the background level shall be compared with the value of 500 ppmv except when monitoring a seal around a rotating shaft that passes through a cover opening, in which case the comparison shall be as specified in par. (i). If the difference is less than 500 ppmv, then the potential leak interface is determined to operate with no detectable organic emissions. NR 661.1083(4)(i)(i) For the seals around a rotating shaft that passes through a cover opening, the arithmetic difference between the maximum organic concentration indicated by the instrument and the background level shall be compared with the value of 10,000 ppmw. If the difference is less than 10,000 ppmw, then the potential leak interface is determined to operate with no detectable organic emissions. NR 661.1083 HistoryHistory: CR 19-082: cr. Register August 2020 No. 776, eff. 9-1-20; correction in (1) (a) 1. (intro.), 1., (3) (d) made under s. 13.92 (4) (b) 7., Stats., Register April 2021 No. 784. NR 661.1084(1)(1) The provisions of this section apply to the control of air pollutant emissions from tanks for which s. NR 661.1082 (2) references the use of this section for such air emission control. NR 661.1084(2)(2) The remanufacturer or other person that stores or treats the hazardous secondary material shall control air pollutant emissions from each tank subject to this section in accordance with one of the following requirements as applicable: NR 661.1084(2)(a)(a) For a tank that manages hazardous secondary material that meets all of the conditions specified in subds. 1. to 2., the remanufacturer or other person that stores or treats the hazardous secondary material shall control air pollutant emissions from the tank in accordance with the Tank Level 1 controls specified in sub. (3) or the Tank Level 2 controls specified in sub. (4). NR 661.1084(2)(a)1.1. The hazardous secondary material in the tank has a maximum organic vapor pressure less than the maximum organic vapor pressure limit for the tank’s design capacity category as follows: NR 661.1084(2)(a)1.a.a. For a tank design capacity equal to or greater than 151 m3, the maximum organic vapor pressure limit for the tank is 5.2 kPa. NR 661.1084(2)(a)1.b.b. For a tank design capacity equal to or greater than 75 m3 but less than 151 m3, the maximum organic vapor pressure limit for the tank is 27.6 kPa. NR 661.1084(2)(a)1.c.c. For a tank design capacity less than 75 m3, the maximum organic vapor pressure limit for the tank is 76.6 kPa. NR 661.1084(2)(a)2.2. The hazardous secondary material in the tank is not heated by the remanufacturer or other person that stores or treats the hazardous secondary material to a temperature that is greater than the temperature at which the maximum organic vapor pressure of the hazardous secondary material is determined for the purpose of complying with subd. 1. NR 661.1084(2)(b)(b) For a tank that manages hazardous secondary material that does not meet all of the conditions specified in par. (a) 1. and 2., the remanufacturer or other person that stores or treats the hazardous secondary material shall control air pollutant emissions from the tank by using Tank Level 2 controls in accordance with the requirements under sub. (4). An example of a tank required to use Tank Level 2 controls is a tank for which the hazardous secondary material in the tank has a maximum organic vapor pressure that is equal to or greater than the maximum organic vapor pressure limit for the tank’s design capacity category as specified in par. (a) 1. NR 661.1084(3)(3) A remanufacturer or other person that stores or treats the hazardous secondary material controlling air pollutant emissions from a tank using Tank Level 1 controls shall meet all of the following requirements: NR 661.1084(3)(a)(a) The remanufacturer or other person that stores or treats that hazardous secondary material shall determine the maximum organic vapor pressure for a hazardous secondary material to be managed in the tank using Tank Level 1 controls before the first time the hazardous secondary material is placed in the tank. The maximum organic vapor pressure shall be determined using the procedures specified in s. NR 661.1083 (3). Thereafter, the remanufacturer or other person that stores or treats the hazardous secondary material shall perform a new determination whenever changes to the hazardous secondary material managed in the tank could potentially cause the maximum organic vapor pressure to increase to a level that is equal to or greater than the maximum organic vapor pressure limit for the tank design capacity category specified in sub. (2) (a) 1., as applicable to the tank. NR 661.1084(3)(b)(b) The remanufacturer or other person that stores or treats that hazardous secondary material shall equip the tank with a fixed roof designed to meet all of the following specifications: NR 661.1084(3)(b)1.1. The fixed roof and its closure devices shall be designed to form a continuous barrier over the entire surface area of the hazardous secondary material in the tank. The fixed roof may be a separate cover installed on the tank, such as a removable cover mounted on an open-top tank, or may be an integral part of the tank structural design, such as a horizontal cylindrical tank equipped with a hatch. NR 661.1084(3)(b)2.2. The fixed roof shall be installed in a manner such that there are no visible cracks, holes, gaps, or other open spaces between roof section joints or between the interface of the roof edge and the tank wall. NR 661.1084(3)(b)3.3. Each opening in the fixed roof, and any manifold system associated with the fixed roof, shall be any of the following: NR 661.1084(3)(b)3.a.a. Equipped with a closure device designed to operate such that when the closure device is secured in the closed position there are no visible cracks, holes, gaps, or other open spaces in the closure device or between the perimeter of the opening and the closure device. NR 661.1084(3)(b)3.b.b. Connected by a closed-vent system that is vented to a control device. The control device shall remove or destroy organics in the vent stream, and shall be operating whenever hazardous secondary material is managed in the tank, except during any of the following periods: 1) During periods when it is necessary to provide access to the tank for performing the activities of subd. 3. b. 2), venting of the vapor headspace underneath the fixed roof to the control device is not required, opening of closure devices is allowed, and removal of the fixed roof is allowed. Following completion of the activity, the remanufacturer or other person that stores or treats the hazardous secondary material shall promptly secure the closure device in the closed position or reinstall the cover, as applicable, and resume operation of the control device.
2) During periods of routine inspection, maintenance, or other activities needed for normal operations, and for removal of accumulated sludge or other residues from the bottom of the tank.
NR 661.1084(3)(b)4.4. The fixed roof and its closure devices shall be made of suitable materials that will minimize exposure of the hazardous secondary material to the atmosphere, to the extent practical, and will maintain the integrity of the fixed roof and closure devices throughout their intended service life. Factors to be considered when selecting the materials for and designing the fixed roof and closure devices shall include organic vapor permeability; the effects of any contact with the hazardous secondary material or its vapors managed in the tank; the effects of outdoor exposure to wind, moisture, and sunlight; and the operating practices used for the tank on which the fixed roof is installed. NR 661.1084(3)(c)(c) Whenever a hazardous secondary material is in the tank, the fixed roof shall be installed with each closure device secured in the closed position except as follows: NR 661.1084(3)(c)1.1. Opening of closure devices or removal of the fixed roof is allowed at the following times: NR 661.1084(3)(c)1.a.a. To provide access to the tank for performing routine inspection, maintenance, or other activities needed for normal operations. Examples of such activities include those times when a worker needs to open a port to sample the liquid in the tank, or when a worker needs to open a hatch to maintain or repair equipment. Following completion of the activity, the remanufacturer or other person that stores or treats the hazardous secondary material shall promptly secure the closure device in the closed position or reinstall the cover, as applicable, to the tank. NR 661.1084(3)(c)2.2. Opening of a spring-loaded pressure-vacuum relief valve, conservation vent, or similar type of pressure relief device that vents to the atmosphere is allowed during normal operations for the purpose of maintaining the tank internal pressure in accordance with the tank design specifications. The device shall be designed to operate with no detectable organic emissions when the device is secured in the closed position. The settings at which the device opens shall be established such that the device remains in the closed position whenever the tank internal pressure is within the internal pressure operating range determined by the remanufacturer or other person that stores or treats the hazardous secondary material based on the tank manufacturer recommendations, applicable regulations, fire protection and prevention codes, standard engineering codes and practices, or other requirements for the safe handling of flammable, ignitable, explosive, reactive, or hazardous materials. Examples of normal operating conditions that may require these devices to open are during those times when the tank internal pressure exceeds the internal pressure operating range for the tank as a result of loading operations or diurnal ambient temperature fluctuations. NR 661.1084(3)(c)3.3. Opening of a safety device, as defined in s. NR 661.1081, is allowed at any time conditions require doing so to avoid an unsafe condition. NR 661.1084(3)(d)(d) The remanufacturer or other person that stores or treats the hazardous secondary material shall inspect the air emission control equipment according to all of the following requirements: NR 661.1084(3)(d)1.1. The fixed roof and its closure devices shall be visually inspected by the remanufacturer or other person that stores or treats the hazardous secondary material to check for defects that could result in air pollutant emissions. Defects include visible cracks, holes, or gaps in the roof sections or between the roof and the tank wall; broken, cracked, or otherwise damaged seals or gaskets on closure devices; and broken or missing hatches, access covers, caps, or other closure devices. NR 661.1084(3)(d)2.2. The remanufacturer or other person that stores or treats the hazardous secondary material shall perform an initial inspection of the fixed roof and its closure devices on or before the date that the tank becomes subject to this section. Thereafter, the remanufacturer or other person that stores or treats the hazardous secondary material shall perform the inspections at least once every year except under the special conditions provided for in sub. (12). NR 661.1084(3)(d)3.3. In the event that a defect is detected, the remanufacturer or other person that stores or treats the hazardous secondary material shall repair the defect in accordance with the requirements under sub. (11). NR 661.1084(3)(d)4.4. The remanufacturer or other person that stores or treats the hazardous secondary material shall maintain a record of the inspection in accordance with the requirements specified in s. NR 661.1089 (2). NR 661.1084(4)(4) The remanufacturer or other person that stores or treats the hazardous secondary material controlling air pollutant emissions from a tank using Tank Level 2 controls shall use one of the following tanks: NR 661.1084(4)(a)(a) A fixed-roof tank equipped with an internal floating roof in accordance with the requirements specified in sub. (5). NR 661.1084(4)(b)(b) A tank equipped with an external floating roof in accordance with the requirements specified in sub. (6). NR 661.1084(4)(c)(c) A tank vented through a closed-vent system to a control device in accordance with the requirements specified in sub. (7). NR 661.1084(4)(d)(d) A pressure tank designed and operated in accordance with the requirements specified in sub. (8). NR 661.1084(4)(e)(e) A tank located inside an enclosure that is vented through a closed-vent system to an enclosed combustion control device in accordance with the requirements specified in sub. (9). NR 661.1084(5)(5) The remanufacturer or other person that stores or treats the hazardous secondary material who controls air pollutant emissions from a tank using a fixed roof with an internal floating roof shall meet the requirements specified in pars. (a) to (c). NR 661.1084(5)(a)(a) The tank shall be equipped with a fixed roof and an internal floating roof in accordance with all of the following requirements: NR 661.1084(5)(a)1.1. The internal floating roof shall be designed to float on the liquid surface except when the floating roof shall be supported by the leg supports. NR 661.1084(5)(a)2.2. The internal floating roof shall be equipped with a continuous seal between the wall of the tank and the floating roof edge that meets any of the following requirements: NR 661.1084(5)(a)2.b.b. Two continuous seals mounted one above the other. The lower seal may be a vapor-mounted seal. NR 661.1084(5)(a)3.3. The internal floating roof shall meet all of the following specifications: NR 661.1084(5)(a)3.a.a. Each opening in a noncontact internal floating roof except for automatic bleeder vents, vacuum breaker vents, and the rim space vents shall provide a projection below the liquid surface. NR 661.1084(5)(a)3.b.b. Each opening in the internal floating roof shall be equipped with a gasketed cover or a gasketed lid except for leg sleeves, automatic bleeder vents, rim space vents, column wells, ladder wells, sample wells, and stub drains. NR 661.1084(5)(a)3.c.c. Each penetration of the internal floating roof for the purpose of sampling shall have a slit fabric cover that covers at least 90 percent of the opening. NR 661.1084(5)(a)3.e.e. Each penetration of the internal floating roof that allows for passage of a ladder shall have a gasketed sliding cover. NR 661.1084(5)(a)3.f.f. Each penetration of the internal floating roof that allows for passage of a column supporting the fixed roof shall have a flexible fabric sleeve seal or a gasketed sliding cover. NR 661.1084(5)(b)(b) The remanufacturer or other person that stores or treats the hazardous secondary material shall operate the tank in accordance with all of the following requirements: NR 661.1084(5)(b)1.1. When the floating roof is resting on the leg supports, the process of filling, emptying, or refilling shall be continuous and shall be completed as soon as practical. NR 661.1084(5)(b)2.2. Automatic bleeder vents shall be set closed at all times when the roof is floating, except when the roof is being floated off or is being landed on the leg supports. NR 661.1084(5)(b)3.3. Prior to filling the tank, each cover, access hatch, gauge float well or lid on any opening in the internal floating roof shall be bolted or fastened closed, so that there are no visible gaps. Rim space vents shall be set to open only when the internal floating roof is not floating or when the pressure beneath the rim exceeds the manufacturer’s recommended setting.
