Individual States Methodically Decide
When (or If) to Phase Out Gas Vapor Recovery at the Fuel Nozzle
It’s been about five
years since the U.S. Environmental Protection Agency (EPA) ruled that fuel
marketers could begin removing and replacing Stage II vapor recovery systems
because they were no longer cost-effective at reducing air pollution. Since
then individual states have been deciding what to do. The result has been a
stream of decisions that has amounted to a gradual phase out. Only a handful of
jurisdictions, led most notably by California, still require gasoline vapor
recovery systems at the fuel nozzle.
The EPA’s
2012 announcement that it would waive Stage II vapor recovery requirements
affected approximately 40 ozone nonattainment areas and 13 ozone transport
regions. The agency determined onboard refueling vapor recovery systems (ORVR)
are widespread in the highway motor vehicle fleet and are effective at
capturing vapors evacuated from the gasoline tank before reaching the pump
nozzle. The widespread use designation was made after the EPA determined more
than 75 percent of gasoline was dispensed into vehicles that have ORVR systems.
The agency
estimated potential national cost savings for facilities that decommission
Stage II systems at more than $91 million. That amounted to recurring savings
of about $3,000 per year for 30,600 dispensing facilities outside California
with Stage II equipment. “By waiving the Stage II requirement, EPA is reducing
regulatory burdens on the gasoline service station industry,” the agency wrote
in its fact sheet regarding the ruling in 2012.
Decommissioning Requirements
The EPA
ruling did not mean all fuel marketers were free to eliminate their Stage II
systems. States had to show the EPA that removing Stage II requirements would
not interfere with applicable Clean Air Act (CAA) requirements. This factor led
to what amounted to a gradual phase-out in the states that decided to act. The
process of decommissioning the systems is either completed or in progress for
the large majority of the affected regions. Some of the most recent actions
involve these states:
·
Virginia:
As of January 1, 2017, owners of Gasoline Dispensing Facilities (GDF) located
in the Richmond area may decommission their Stage II equipment in
accordance with the PEI RP300-09.
·
Tennessee:
As of July 14, 2016, Stage II will no longer be required to be installed in new
GDF. Existing Stage II systems should be
decommissioned by July 14, 2019.
·
New
Jersey: Beginning October 12, 2016 new GDF can be constructed without Stage II
Vapor recovery systems.
·
Kentucky:
Louisville stopped Stage II requirement in May 2016 and requires GDF to decommission
those systems within 3 years.
California
plans to retain its Stage II program for the foreseeable future. The state Air
Resources Board (CAB) believes the EPA’s guidance allowing Stage II removal
does not apply because its Phase II Enhanced Vapor Recovery program includes
more controls and achieves more emission reductions than federal Stage II. The
CAB also believes Stage II elimination would likely increase the risk of
benzene exposure. The District of Columbia and three other states with Stage II
vapor recovery requirements – Nevada, Oregon and Washington – have not acted to
change them.
Decommissioning
involves properly shutting down the Stage II equipment that collected gas vapor
and transferred it to the underground storage tank until it could be collected
by delivery trucks. The procedure generally involves capping off and
disconnecting various Stage II components but leaves the below grade Stage II
vapor piping in place. Regulations generally require facilities to decommission
their entire Stage II system rather than replacing equipment at individual
dispensers. All the Stage II hanging hardware must be replaced with
conventional hanging hardware.
Two types of
Stage II systems had been in place across the United States. Vapor Balance
systems are characterized by the large bellows attached to the fuel nozzle. The
somewhat cumbersome Vapor Balance system assembly creates a slight vacuum that pulls
gas vapors back into the underground storage tank. The other Stage II system,
Vacuum Assist, has a smaller vapor collector on the nozzle paired with a vacuum
pump that pulls gas vapor back to the underground storage tank.
Husky Corporation
offers a preassembled and fully tested set of hanging hardware allowing fuel
marketers to replace their Stage II equipment. The EZ Connect package includes
an adapter (to plug the vapor recovery line at the dispenser), whip hose,
break-away, fuel hose, swivel, and nozzle.
“All the
fuel marketer has to do is disconnect their old dispenser hose assembly and attach
the EZ Connect package,” Baker said. “Since Husky is the only company that manufactures
all the components needed to decommission Stage II systems, customers asked us
to develop this professionally assembled package to make the decommissioning project
as easy as possible.”
Husky
quality inspectors check thread connections to ensure compatibility and
consistency. Husky technicians assemble the components with tools that apply
the correct torque, pressure-test the connections, and conduct continuity tests
against problems with static electricity.
The CAA also
required many ozone non-attainment areas to adopt Stage I vapor recovery
systems which apply to the gasoline distribution industry and Stage II systems
which apply to service stations in the early 1990’s. The Stage I rules limiting
emissions of hazardous air pollutants from gasoline distribution terminals in
the United States remain in effect.