NR 420.03(6)(b)3.b.b. Equipped with projections into the tank which remain below the liquid surface at all times. NR 420.03(6)(b)4.4. Automatic bleeder vents are closed at all times except when the roof is floated off or landed on the roof leg supports. NR 420.03(6)(b)5.5. Rim vents are set to open only when the roof is being floated off the leg supports or at the manufacturer’s recommended setting. NR 420.03(6)(b)6.6. Emergency roof drains are provided with slotted membrane fabric covers or equivalent covers which cover at least 90% of the area of the opening. NR 420.03(6)(b)7.7. Routine visual inspections are conducted of all seals and seal closure devices at monthly intervals during the ozone season. NR 420.03(6)(b)8.8. The secondary seal gap of vapor-mounted seals is measured annually, in a manner approved by the department. NR 420.03(6)(b)9.9. The vessel is repaired or removed from service as expeditiously as practicable, but no later than 45 days after the completion of the routine inspection under subd. 7. or the annual inspection under subd. 8., if the inspection reveals a failure to meet any of the requirements of subd. 2. NR 420.03(6)(b)10.10. Records are maintained and retained for a minimum of 5 years that shall include: NR 420.03(7)(7) External floating roof vessels with no secondary seal requirement. NR 420.03(7)(a)(a) Applicability. This subsection applies to all storage vessels with capacities greater than 151,412 liters (40,000 gallons) equipped with external floating roofs operating without secondary seals or their approved equivalent pursuant to sub. (6) (a) 1. to 4. NR 420.03(7)(b)(b) Recordkeeping. The owner or operator of a petroleum liquid storage vessel with an external floating roof not covered under sub. (6) but containing a petroleum liquid with a true vapor pressure greater than 7.0 kPa (1.0 psia), shall maintain and retain for at least 2 years records of the average monthly storage temperature, the type of liquid, throughput quantities and the maximum true vapor pressure for all petroleum liquids with a true vapor pressure greater than 7.0 kPa (1.0 psia). NR 420.03(8)(8) Alternative control. Any alternative control method approved by the department under sub. (2), (5) (b) 1. or (6) (b) 1. shall be submitted to, and will not become effective for federal purposes until approved by, the administrator or designee as a source-specific revision to the department’s state implementation plan for ozone. NR 420.03 HistoryHistory: Renum. from NR 154.13 (2) (a) and am. Register, September, 1986, No. 369, eff. 10-1-86; am. (1) (intro.), (4) (b) (intro.) (5) (a), (b) (intro.) and 7. b., (6) (a) (intro.), (b) (intro.) and 2. c. and (7) (a), Register, February, 1990, No. 410, eff. 3-1-90; am. (1) (a) and (3) (c), Register, May, 1992, No. 437, eff. 6-1-92; am. (1) (e), (2) (a) and (b), (5) (b) 6., cr. (8), Register, December, 1993, No. 456, eff. 1-1-94; am. (1) (a), (3) (c), Register, February, 1995, No. 470, eff. 3-1-95; am. (1) (b), Register, December, 1995, No. 480, eff. 1-1-96; am. (1) (a), (3) (b) (intro.), (4) (b) (intro.) and (5) (b) (intro.), 1., 7. intro., (6) (b) (intro.), (8), r. (5) (b) 2., Register, December, 1996, No. 492, eff. 1-1-97; am. (1) (a) and (5) (b) 5., renum. (5) (b) 6., 7. and (6) (b) 9. to be (5) (b) 7., 8. and (6) (b) 10. and am. (5) (b) 7., 8. (intro.), a. and (6) (b) 10. (intro.), cr. (5) (b) 6., (c), (d) and (6) (b) 9., Register, October, 1999, No. 526, eff. 11-1-99; correction in (2) (a) and (8) made under s. 13.93 (2m) (b) 7., Stats., Register, October, 1999, No. 526.; CR 02-146: am (1) (a) Register October 2003 No. 574, eff. 11-1-033; correction in (3) (c) made under s. 13.93 (2m) (b) 7., Stats., Register October 2003, No. 574; correction in (5) (c) 2. b. made under s. 13.92 (4) (b) 7., Stats., Register May 2011 No. 665; CR 15-077: am. (4) (b) 3. Register July 2016 No. 727, eff. 8-1-16. NR 420.035NR 420.035 Gasoline storage tank vent pipes. NR 420.035(1)(a)(a) Applicability. Except as provided in par. (b), this section applies to all stationary gasoline storage tanks at a gasoline dispensing facility with a total stationary storage tank capacity of 2000 gallons or more located in Kenosha, Kewaunee, Manitowoc, Milwaukee, Ozaukee, Racine, Sheboygan, Washington or Waukesha county. NR 420.035(1)(b)(b) Non-highway fuel use exemption. This section does not apply to any gasoline dispensing equipment that is used exclusively for fueling marine vessels, aircraft or snowmobiles. NR 420.035(2)(a)(a) No owner or operator of a gasoline dispensing facility described in sub. (1) (a) may permit gasoline to be transferred from either a gasoline delivery vessel to a stationary storage tank, or from a stationary storage tank to a motor vehicle fuel tank, unless the owner or operator has installed a pressure vacuum valve on the stationary gasoline storage tank vent pipe. NR 420.035(2)(b)(b) The owner or operator of a gasoline dispensing facility subject to par. (a) shall ensure that each pressure vacuum valve installed on a storage tank vent pipe is certified by the California air resources board under section 41954 of the California health and safety code, and is maintained in good working order. NR 420.035(3)(a)(a) The owner or operator of a gasoline dispensing facility subject to sub. (2) on August 1, 1994 shall install a pressure vacuum valve on each stationary gasoline storage tank vent pipe by March 31, 1995. NR 420.035(3)(b)(b) The owner or operator of an existing gasoline dispensing facility previously exempt from the vapor control requirements of sub. (2) because its gasoline storage tank capacity was less than 2000 gallons shall install a pressure vacuum valve on each stationary gasoline storage tank vent pipe not later than 120 days after the exemption level is exceeded, making sub. (2) applicable. NR 420.035(3)(c)(c) The owner or operator of a gasoline dispensing facility on which construction was commenced after August 1, 1994 and which is subject to the vapor control requirements of sub. (2) shall install a pressure vacuum valve on each stationary gasoline storage tank vent pipe before the tank is first filled with gasoline. NR 420.035 HistoryHistory: Cr. Register, July, 1994, No. 463, eff. 8-1-94; am. (2) (b), Register, December, 1995, No. 480, eff. 1-1-96. NR 420.04NR 420.04 Transfer operations and associated equipment.