NR 440.70(14)(d)1.1. The maximum gap widths and maximum gap areas between the primary seal and the separator wall and between the secondary seal and the separator wall shall be determined individually within 60 calendar days of the initial installation of the floating roof and introduction of refinery wastewater or 60 calendar days after the equipment is placed back into service using the following procedure when the separator is filled to the design operating level and when the roof is floating off the roof supports. NR 440.70(14)(d)1.a.a. Measure seal gaps around the entire perimeter of the separator in each place where a 0.32 cm (0.125 in) diameter uniform probe passes freely, without forcing or binding against seal, between the seal and the wall of the separator and measure the gap width and perimetrical distance of each such location. NR 440.70(14)(d)1.b.b. That total surface area of each gap described in subd. 1. a. shall be determined by using probes of various widths to measure accurately the actual distance from the wall to the seal and multiplying each such width by its respective perimetrical distance. NR 440.70(14)(d)1.c.c. Add the gap surface area of each gap location for the primary seal and the secondary seal individually, divide the sum for each seal by the nominal perimeter of the separator basin and compare each to the maximum gap area as specified in sub. (11). NR 440.70(14)(d)2.2. The gap widths and total gap area shall be determined using the procedure in subd. 1. according to the following frequency: NR 440.70(15)(a)(a) Each owner or operator of a facility subject to the provisions of this section shall comply with the recordkeeping requirements of this subsection. All records shall be retained for a period of 2 years after being recorded unless otherwise noted. NR 440.70(15)(b)(b) For individual drain systems subject to sub. (4), the location, date and corrective action shall be recorded for each drain when the water seal is dry or otherwise breached, when a drain cap or plug is missing or improperly installed or other problem is identified that could result in VOC emissions, as determined during the initial and periodic visual or physical inspection. NR 440.70(15)(c)(c) For junction boxes subject to sub. (4), the location, date and corrective action shall be recorded for inspections required by sub. (4) (f) to (i) when a broken seal, gap or other problem is identified that could result in VOC emissions. NR 440.70(15)(d)(d) For sewer lines subject to subs. (4) and (5) (e), the location, date and corrective action shall be recorded for inspections required by sub. (4) (j) to (n) and (10) (e) to (g) when a problem is identified that could result in VOC emissions. NR 440.70(15)(e)(e) For oil-water separators subject to sub. (5), the location, date and corrective action shall be recorded for inspections required by sub. (5) (a) when a problem is identified that could result in VOC emissions. NR 440.70(15)(f)(f) For closed vent systems subject to sub. (7) and completely closed drain systems subject to sub. (10), the location, date and corrective action shall be recorded for inspections required by sub. (7) (e) to (i) during which detectable emissions are measured or a problem is identified that could result in VOC emissions. NR 440.70(15)(g)(g) If an emission point cannot be repaired or corrected without a process unit shutdown, the expected date of a successful repair shall be recorded. NR 440.70(15)(g)1.1. The reason for the delay as specified in sub. (8) shall be recorded if an emission point or equipment problem is not repaired or corrected in the specified amount of time. NR 440.70(15)(g)2.2. The signature of the owner or operator, or designee, whose decision it was that repair could not be effected without refinery or process shutdown shall be recorded. NR 440.70(15)(g)3.3. The date of successful repair or corrective action shall be recorded. NR 440.70(15)(h)(h) A copy of the design specifications for all equipment used to comply with the provisions of this section shall be kept for the life of the source in a readily accessible location. NR 440.70(15)(i)(i) The following information pertaining to the design specifications shall be kept: NR 440.70(15)(i)2.2. The dates and descriptions of any changes in the design specifications. NR 440.70(15)(j)(j) The following information pertaining to the operation and maintenance of closed drain systems and closed vent systems shall be kept in a readily accessible location: NR 440.70(15)(j)1.1. Documentation demonstrating that the control device will achieve the required control efficiency during maximum loading conditions shall be kept for the life of the facility. This documentation is to include a general description of the gas streams that enter the control device, including flow and VOC content under varying liquid level conditions, dynamic and static, and manufacturer’s design specifications for the control device. If an enclosed combustion device with a minimum residence time of 0.75 seconds and a minimum temperature of 816°C (1,500°F) is used to meet the 95% requirement, documentation that those conditions exist is sufficient to meet the requirements of this paragraph. NR 440.70(15)(j)2.2. For a carbon adsorption system that does not regenerate the carbon bed directly onsite in the control device such as a carbon canister, the design analysis shall consider the vent stream composition, constituent concentrations, flow rate, relative humidity and temperature. The design analysis shall also establish the design exhaust vent stream organic compound concentration level, capacity of carbon bed, type and working capacity of activated carbon used for carbon bed, and design carbon replacement interval based on the total carbon working capacity of the control device and source operating schedule. NR 440.70(15)(j)3.3. Periods when the closed vent systems and control devices required in subs. (3) to (9) are not operated as designed, including periods when a flare pilot does not have a flame shall be recorded and kept for 2 years after the information is recorded. NR 440.70(15)(j)4.4. Dates of startup and shutdown of the closed vent system and control devices required in subs. (3) to (9) shall be recorded and kept for 2 years after the information is recorded. NR 440.70(15)(j)5.5. The dates of each measurement of detectable emissions required in subs. (3) to (11), shall be recorded and kept for 2 years after the information is recorded. NR 440.70(15)(j)6.6. The background level measured during each detectable emissions measurements shall be recorded and kept for 2 years after the information is recorded.