Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 420 - Control Of Organic Compound Emissions From Petroleum And Gasoline Sources
Section NR 420.035 - Gasoline storage tank vent pipes

(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.

(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.

(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.

(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.

(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.

(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.

(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.