State of California

Los Angeles Convention Center
1201 South Figueroa Street
Room 202
Los Angeles, CA

November 24, 1976
9:30 a.m.


76-21-1 Public Hearing on Amendments to the Emergency Plan

a) Modification of O3-SO2 Combined Episode Criteria
b) Adoption of O3-SO2 Combined Episode Control

76-21-2 Status Report on Implementation of the Emergency Plan

76-21-3 Status Report on Continuous Emission Monitoring of
Existing Sources

76-21-4 Status Report on Organic Solvent Regulations

76-21-5 Other Business

Research Proposals
ITEM NO.: 76-21-2

Public Hearing on Amendment to the Emergency Plan

a) Modification of SO2/Oxidant Combined Episode
b) Adoption of SO2/Oxidant Combined Episode Control


Adopt Resolution 76-40 which amends the Emergency Plan to include
new criteria for combined SO2/Oxidant emergency episodes and
abatement measures for these combined episodes.


In May the Board on the recommendation of the Department of
Health adopted episode criteria for combined SO2/Oxidant episodes
which added the SO2 concentration to the oxidant concentration
when the latter exceeded 0.10 ppm. No control measures were
adopted for the combined episodes. In September the staff
presented an informational report suggesting that the combined
episodes should also have a cutoff concentration for SO2 to avoid
creating Stage Ii episodes when SO2 concentrations were too low
to be effectively controlled. The Department of Health concurred
in this suggestion.

The staff was requested to prepare amendments to the emergency
plan that would include this change in the episode criteria and
would include abatement measures for combined episodes based on
the control methods for each of the contaminations.

ITEM NO.: 76-21-3

Status Report - Implementation of California Air Pollution
Emergency Plan.


Informational Report.


This staff report presents the status of the district's emergency
regulations and the abatement plans submitted by affected
sources; summarizes the prediction and occurrence of episodes in
1976; and discusses Regulation VII of the Southern California Air
Pollution Control District (APCD).

The staff has determined that present APCD regulations are not
adequate to implement the California Air Pollution Emergency
Plan. This inadequacy is especially critical in the Southern
California APCD where the potential for severe air pollution
episodes is the greatest.

ITEM NO.: 76-21-4

Status Report on Continuous Emission Monitoring of Existing


Informational report.


Prior to October 27, 1975, when the Air Resources Board made the
findings that in-stack monitors are available, technologically
feasible and economically reasonable for installation on certain
specified sources, most local districts had regulations which
required sources to install emission monitors upon the finding by
the APCO that such monitors are available and should be
installed. After the ARB made its findings, 13 APCDs revised
their regulations to require continuous in-stack monitoring for
sources that were identified in the ARB findings. On October 6,
1975, the EPA promulgated in-stack monitoring requirements which
were more extensive than the requirements contemplated by the ARB
findings and by the regulations adopted by the local districts.
In view of the differences between State and Federal
requirements, some local districts expressed the desire that
these differences be resolved before adopting or revising their
regulations. The ARB submitted the regulations of some districts
to the EPA for approval, but did not receive comments regarding
their acceptability until September 1976. In the next three
months, the staff will evaluate the EPA requirements and work
with local APCDs for the adoption of emission monitoring
regulations that meet state and federal requirements.

ITEM NO.: 76-21-5

Status Report on Organic Solvent Regulations.


Informational Report.


Organic emissions are a major contributor to photochemical smog
in California. Substantial reductions in these emissions have
been obtained through the use of pollution control devices on
motor vehicles and the enactment of organic solvent regulations
for stationary sources. However, further reductions are needed
to achieve the state and federal oxidant standards.

An organic solvent regulation study group was formed in April
1976 to develop model rules to reduce organic emissions from
organic solvents. The study group consists of representatives
from local districts and the ARB staff. A preliminary inventory
indicates that architectural coatings and paint spray booths are
among the largest contributors of organic emissions, and rules
will be developed for these sources first. As the study
progresses, degreasing, dry cleaning and other organic solvent
operations will be investigated and model rules will be