State of California
AIR RESOURCES BOARD
State Office Building
455 Golden Gate Avenue
San Francisco, CA
October 28, 1977
77-23-1 Approval of the Minutes of the November 24, 1976, Board
77-23-2 Consideration of Resolution in Opposition to the
Termination of Passenger Service Between San Jose and
San Francisco by the Southern Pacific Transportation
77-23-3 Public Hearing Regarding Technical Revisions to the
0.05 SO2 Standard.
77-23-4 Public Hearing Regarding Bay Area Air Pollution Control
District Floating Roofs.
77-23-5 Status Report Regarding Efforts to Prepare a
Transportation Control Plan for the State of
77-23-6 Other Business -
a. Executive Session - Personnel & Litigation
b. Research Proposals
ITEM NO.: 77-23-3
Public Hearing to Consider Revision of State Ambient Air Quality
Standards for Sulfur Dioxide.
Adopt Resolution 77-50.
On June 29, 1977 the Board adopted a new 24-hour ambient air
quality standard for sulfur dioxide (SO2) of 0.05 ppm never to be
equaled or exceeded when the one-hour oxidant (ozone O3)
concentration, and/or the 24-hour suspended particulate matter
concentration equal or exceed their respective State standards.
since its adoption issues relating to how the new standard is
actually to be implemented have arisen and, are in need of
further clarification by the Board.
One question that has arisen is how the 24-hour SO2 standard is
to be measured in conjunction with the 1-hour oxidant standard
and 24-hour particulate standard. A consideration of how the 24-hour
sulfur dioxide standard is to be measured in conjunction
with the 1-hour oxidant standard leads to the interpretation that
a violation of the combination standard will occur if, during the
24-hour period in which the sulfur dioxide average concentration
equals or exceeds 0.05 ppm, the oxidant concentration reaches or
exceeds 0.10 ppm.
A single SO2 average concentration is to be determined over a
fixed, continuous 24-hour interval beginning and ending on the
hour. This 24-hour interval shall be the same as that used for
the determination of TSP concentration and if the 24-hour
interval includes portions of two calendar days, any violation is
to be assigned to that day which contains the larger portion of
the hours of the 24-hour interval, or to the first day if it
encompasses twelve hours from each day.
Another question which has arisen is whether pollutant
combinations must be measured at the same monitoring station.
Resources are not available to measure all pollutants at all
monitoring stations so it would be necessary to model pollutant
concentrations continuously so as to estimate at a number of
stations the concentration of pollutants not actually being
measured there. The modeling task would be formidable and the
accuracy may not be satisfactory for the determination of
compliance with the standard. Therefore the staff recommends
that the pollutants should be measured at the same station.
Accordingly, it is suggested that the Board consider amendments
to the standard to accomplish the following:
Addition of a footnote to Section 70200 of Title 17 after
the words, "with oxidant (ozone) in excess of the state
standard." The footnote should read, "A violation of this
portion of the standard will be deemed to occur if average
hourly oxidant measurements equal or exceed the oxidant
standard for any one or more hours during a 24-hour
measuring period for sulfur dioxide."
The staff also recommends a second footnote at the end of the
statement in the column entitled Concentration and Methods (after
the words "...24-hour suspended particulate matter standard")
"sulfur dioxide readings in combination either with oxidant
or suspended particulate matter shall be taken at the same
ITEM NO.: 77-23-4
Public Hearing to Consider Adoption of a Regulation for the Bay
Area Air Pollution Control District Regarding the Storage of
Adopt Resolution No. 77-54, thereby amending the rules and
regulations of the Bay Area Air Pollution Control District to
include the same rule for the storage of organic liquids that the
Board adopted for the South Coast Air Quality Management
On August 15, 1977, the Executive Officer of the Air Resources
Board, pursuant to delegated authority from the Board, adopted
Rule 463, Storage of Organic Liquids, for the South Coast Air
Quality Management District. That rule requires that floating
roof tanks be equipped with both primary and secondary seals,
that gaps between the seals and the tank be no more than
specified dimensions, that the secondary seal allow inspection of
the primary seal, that alternative control measures can be used
providing equivalency is demonstrated, and that vapor recovery
systems eventually have efficiencies of at least 95%. The rule
was the result of extensive tests at Plainfield, Illinois by
Chicago Bridge and Iron and at Los Angeles by members of Western
Oil and Gas Association. The staff held two workshops and
numerous meetings with industry representatives, and the Board
held many public hearings to develop the present rule. It is the
opinion of the staff that the implementation of the present rule
will result in a tenfold reduction in emissions from the storage
of organic liquids in the Bay Area.
On August 25, 1977, the Executive Officer transmitted to the Bay
Area Air Pollution Control District, a copy of Rule 463 and
requested that the Bay Area Pollution Control District adopt a
rule to regulate emissions from the storage of organic liquids
using Rule 463 as a model rule. The Bay Area Air Pollution
Control Board has not adopted such a rule and therefore, the
staff requests that the Board adopt the rule for the District.
ITEM NO.: 77-23-5
Transportation Programs and Controls.
That the staff when reviewing all major highway projects seek
commitments to implement all feasible transportation control
That the Board direct the staff to take the necessary steps to
revise the State Implementation Plan by including specific
highway consistency language.
That the Board authorize a letter to the State Transportation
Board regarding the importance of clean air alternative
That Resolution 77-58 calling for specific emissions reduction
targets for transportation sources be adopted.
California's population is growing. Increases in air pollution,
both from stationary sources and vehicular usage, beyond 1985,
will make attainment and maintenance of national ambient air
quality standards (NAAQS) difficult. Currently, air quality
projections for the State's urban areas clearly show that with
all stationary source control and vehicle emissions control
programs, the NAAQS for oxidant cannot be met as directed by
statute. Other emissions reducing programs are needed.
The 1977 Clean Air Act Amendments (CAAA) call for states to
employ all "reasonably available control measures" to attain and
maintain the standards by 1982, or in some cases by 1987, in
non-attainment areas of the state. Tranpsortation control measures
are specified as "reasonably available control measures" and are
needed in the State's program to avoid loss of federal
transportation aid in California. Federal-aid for highway
construction can be disallowed under the CAAA if adequate
progress in air quality improvement programs is lacking.
In California, transportation control planning for air quality
purposes has been integrated with regional and state
transportaion planning. This planning process yielded
transportation control plans (TCP) which were theoretically
designed to replace the transportation control strategy
promulgated for California by EPA in 1973. However, these TCP's
fall short of meeting both technical and legal requirements to
support submission to EPA as an SIP revision.
The CAAA indicate a need for more local and regional action and
commitment in developing a workable air quality program. The
CAAA place considerable emphasis on transportation control
planning and non-attainment area planning (essentially AQMP).
Therefore, there is an urgent need to cause local, regional, and
state transportation and air quality efforts in the critical air
quality areas of the state to focus on the CAAA requirements so
that millions of federal dollars to support the state's economy
are not jeopardized and can be channeled into beneficial
This staff report summarizes 1) the specific portions of the CAAA
that pertain to transportation planning, 2) the present
transportation related activities of the staff, and 3) the air
quality related activities of Caltrans and metropolitan planning
agencies. The report also describes the status of the Caltrans
Appendix J is a summary of the acronyms used throughout the