NR 420.04(3)(a)1.1. Gasoline dispensing facilities which are supplied exclusively by bulk gasoline plants whose unloading operations are exempted from the requirements of sub. (2) by sub. (2) (a) 1.
NR 420.04(3)(a)2.2. Gasoline dispensing facilities located outside the counties of Brown, Calumet, Dane, Dodge, Door, Fond du Lac, Jefferson, Kenosha, Kewaunee, Manitowoc, Milwaukee, Outagamie, Ozaukee, Racine, Rock, Sheboygan, Walworth, Washington, Waukesha and Winnebago.
NR 420.04(3)(a)3.3. Delivery vessels used exclusively to supply exempt gasoline dispensing facilities or used exclusively for the transfer operations exempted under subds. 4. to 6.
NR 420.04(3)(a)4.4. Transfers made to storage tanks of gasoline dispensing facilities equipped with floating roofs or their equivalent which have been approved by the department.
NR 420.04(3)(a)5.5. Transfers made to any stationary storage tank at a gasoline dispensing facility with a capacity of 7,580 liters (2,000 gallons) or less which is in place on or before August 1, 1979.
NR 420.04(3)(a)6.6. Transfers made to any stationary storage tank at a gasoline dispensing facility with a capacity of 2,176 liters (575 gallons) or less which is installed after August 1, 1979.
NR 420.04(3)(b)(b) Vapor control requirements. No owner or operator of a gasoline dispensing facility and no owner of a gasoline storage tank at such a facility may transfer or cause or allow the transfer of gasoline from any delivery vessel into any stationary storage tank not excluded under par. (a) unless:
NR 420.04(3)(b)1.1. The storage tank is equipped with a submerged fill pipe.
NR 420.04(3)(b)2.2. The vapors displaced from it by filling are processed by a vapor control system in accordance with par. (c).
NR 420.04(3)(b)3.3. After October 1, 1981, the tank truck displays a current sticker demonstrating that the truck is in compliance with sub. (4).
NR 420.04(3)(c)(c) Vapor control system. The vapor control system required by par. (b) shall include one or more of the following:
NR 420.04(3)(c)1.1. A vapor balance system with a vapor tight vapor return line from the storage tank to the delivery vessel and a system that will ensure the vapor line is connected before gasoline can be transferred into the storage tank.
NR 420.04(3)(c)2.2. A refrigeration-condensation system capable of recovering at least 90% by weight of the organic compounds in the displaced vapor or an equally effective alternative control method approved by the department. Any alternative control method approved by the department under this subdivision 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 420.04(3)(d)(d) Operating requirements. The vapor collection system and the gasoline loading equipment shall be designed and operated in a manner that prevents:
NR 420.04(3)(d)1.1. Gauge pressure from exceeding 4.5 kPa (18 inches of H2O) and vacuum from exceeding 1.5 kPa (6 inches of H2O) in the gasoline tank truck.
NR 420.04(3)(d)2.2. A reading equal to or greater than 100% of the LEL at 2.5 centimeters from all points on the perimeter of a potential leak source.
NR 420.04(3)(d)3.3. Avoidable visible liquid leaks during loading or unloading operations.
NR 420.04(3)(e)(e) Delivery vessel unloading. The operator of a delivery vessel may not commence transfer of gasoline to any gasoline dispensing facility equipped with a vapor balance system pursuant to par. (c) 1. without first properly connecting the vapor return line. The delivery vessel shall be designed, maintained and operated to be vapor tight at all times that it is vapor-laden.
NR 420.04(3)(f)(f) Delivery vessel refilling. During the ozone season, vapor-laden delivery vessels shall be refilled in this state only at one of the following:
NR 420.04(3)(f)1.1. Bulk gasoline terminals complying with sub. (1).
NR 420.04(3)(f)2.2. Bulk gasoline plants equipped with a vapor balance system for unloading as described in sub. (2) (e).
NR 420.04(3)(g)(g) Control equipment installation and maintenance. Each owner of a gasoline storage tank or delivery vessel shall do all of the following:
NR 420.04(3)(g)1.1. Install all necessary control systems and make all necessary process modifications in accordance with pars. (b), (c), (d) and (e).
NR 420.04(3)(g)2.2. Repair, replace or modify any worn out or malfunctioning component or element of design, and keep such records as may be requested in writing by the department relating to the repair, replacement or modification of any component or element of design of the control system.
NR 420.04(3)(g)3.3. Repair and retest a vapor collection or control system that exceeds the limits of par. (d) 2. within 15 days.
NR 420.04(3)(h)(h) Control equipment operating and maintenance instructions. Each owner of a gasoline storage tank shall provide written instructions to the operator of the gasoline dispensing facility describing necessary operating and maintenance procedures and procedures for prompt notification of the owner in case of any malfunction of the control system.
NR 420.04(3)(i)(i) Control system operation and maintenance requirements. Each operator of a gasoline dispensing facility shall:
NR 420.04(3)(i)1.1. Maintain and operate the control system in accordance with the specifications and the operating and maintenance procedures specified by the owner.
NR 420.04(3)(i)2.2. Promptly notify the owner of the control system of any scheduled maintenance or of any malfunction requiring replacement or repair of major components of the system.