State of California
AIR RESOURCES BOARD
San Francisco Unified School District Building
170 Fell Street
San Francisco, CA
July 15, 1975
75-14-1 Approval of Minutes of June 11, 1975 Meeting.
75-14-2 Public Hearing to Consider 1978 Production 1
Motorcycle Emission Standards.
75-14-3 Consideration of Regulation Change to Extend the 97
Alternate Heavy-Duty Engine Standards for 1977
and Subsequent Years.
75-14-4 Status Report on the Air Pollution Emergency 108
75-14-5 Alternatives to EPA Regulations for Preventing 119
Significant Air Quality Deterioration.
75-14-6 Report on Test Procedure for Evaluating Vapor 130
75-14-7 Report on Vapor Recovery Control Program
a. Extension to Other Areas of the State. 186
b. Local District Progress in Adopting Basin 224
75-14-8 Report on Emissions of Air Pollutants from Oil 231
75-14-9 Other Business -
a. Executive Session - Personnel & Litigation
b. Board Member Reports & Assignments
c. Research Proposals
75-14-10 Remarks from Audience.
ITEM NO.: 75-14-2
Public Hearing to Consider 1978 Production Motorcycle Emission
Adopt Resolution 75-49D.
At the June 11, 1975 Board meeting the staff recommended that the
Board allow EPA to control motorcycle emissions. The staff has
evaluated several alternate hydrocarbon standards and has
concluded that EPA's proposed standards represent the most
desirable level of control for California. This is based on the
cost/effectiveness and technological feasibility of these
standards and on the limited additional control which could be
achieved from more stringent standards. The EPA standards have
the advantage that, should EPA implement motorcycle controls in
1978 the cost of control for Californians would be reduced by
more than 60%. If EPA does not regulate motorcycles in 1978, no
control would be lost.
Should the Board want motorcycles more stringently controlled,
the staff recommends that the Board adopt a sliding standard
developed by the staff to achieve a nominal 60% reduction in per
vehicle hydrocarbon emissions. This standard is substantially
more cost/effective than other, fixed standard approaches which
provide the same amount of hydrocarbon reduction.
ITEM NO. 75-14-3
Consideration of Regulation Change to Extend the Alternate Heavy-Duty
Engine Standards for 1977 and Subsequent Years.
Adopt Resolution 75-27A by emergency action.
At its April 6, 1975 meeting the Board adopted an optional set of
exhaust emission standards for new 1977 model-year diesel and
gasoline-powered engines for use in heavy-duty vehicles. It was
the Board's intent that both this optional standard and the
original 1977 California standards apply for 1977 and subsequent
years. The regulations as filed list the optional standards for
only the 1977 model-year. General Motors, Cummins and the Engine
Manufacturer's Association have requested that the regulations
more clearly represent the intent of the Board. The staff
proposes adoption of Resolution 75-27A by emergency action to
accomplish this clarification.
ITEM NO.: 75-14-5
Alternatives to EPA Regulations for Preventing Significant Air
A. Direct the staff work further with the group discussed in
the report to develop further programs: 1) to enhance the
quality of the air in agricultural and recreational areas
where ambient air quality standards are exceeded, and 2) to
preserve the quality of air in areas where the standards are
B. Direct the staff to develop specific recommendations for the
boundaries of areas in which the foregoing programs would be
C. Schedule public meetings to discuss areas to be designated
for application of these programs.
At the request of the Board the staff met with representatives of
organizations concerned with air quality to discuss possible
programs for preserving and enhancing the air quality in certain
areas of the State. A broad spectrum of ideas was presented by
the participants at the meeting, from which the staff gained many
useful insights. This staff report discusses the general
conclusions which were reached, and elaborates on some possible
approaches which the Board may wish to consider. Maps are
included to give an idea of areas that could be identified as
areas in which air quality could be enhanced or preserved.
ITEM NO.: 75-14-6
Progress Report on Test Procedures for Evaluating Vapor Recovery
This is an informational report.
At the June 1974 meeting the Board asked its Technical Committee
to draft test procedures for vapor recovery systems. At the
October, 1974 meeting, the draft test procedures were adopted as
guidelines by the Board and the Board instructed the staff to
conduct tests to determine the emissions of gasoline vapor to
atmosphere during the refueling of vehicles at an uncontrolled
service station (baseline data) for use with the procedures. The
staff obtained equipment and started tests in March, 1975. The
tests and analysis of the baseline data are completed. To try
out the procedures, the staff has tested a displacement system
and plans are being made to test a vacuum assisted vapor recovery
system. The test procedures will be modified as necessary and
will be presented to the Board for adoption pursuant to Section
39051(e) of the Health and Safety Code.
ITEM NO.: 75-14-8
Emissions of Air Pollutants from Oil Refineries.
This is an informational report.
At the May 29, 1975 meeting, the Board directed its staff to
report on the emissions of air pollutants from oil refineries in
California and on the steps being taken to further reduce
In response to the Board's request, the staff evaluated studies
conducted in 1957 in Los Angeles, the KVB study in 1974, and data
furnished by the LAAPCD, BAAPCD and most refineries in both
districts. The staff report discusses sources of pollutants in
refineries, and contains estimates of emissions from various
refinery operations in Los Angeles County in 1957 and in 1973.
Current estimates of emissions provided by various refineries are