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Contra Costa County, just east of San
Francisco, is the home of several oil refineries and chemical plants. It
has also been in the news in the past ten years with several major
accidents at these plants. As a result, the County Board of Supervisors
has passed an industrial safety ordinance that essentially extends Process
Safety Management to all parts of seven larger industrial sites within its
jurisdiction that handle hazardous materials. The ordinance requires that
these facilities conduct a root cause analysis for specific incidents,
they update county representatives on the analysis, and they provide
Contra Costa County Health Services with a copy of the root cause
analysis. Also unique in the local ordinance is the requirement for a
written human factors program that follows a guidance document developed
by the County Health Services Department. This is very significant in that
it is a local regulator requiring efforts beyond those required by the
Federal Government, and it is the first specific human factors regulation
for this industry that we are aware of.
Guidance Development is Final
That guidance document was issued after participation by industry,
labor, and others with technical expertise in process safety, risk
management, and human factors. The written program must now be developed
by the affected sites and submitted to the County Health Department by
January 2001.
Jo Haegert, an engineer with the County told AcuSafe
News, "Because this is a guidance, it can be modified based on
feedback from sites as they develop their programs." There is also a
lot of flexibility allowed in how the written program can be developed. No
cost estimates for compliance have been done, but one industry source
indicated that just documenting the existing programs already in place
would cost several thousand dollars. Development of some of the
"new" programs would be additional costs.
The guidance document draws heavily on previously
published guidance documents from the Chemical Manufacturer's Association
and the AIChE's Center for Chemical Process Safety. The Contra Costa
Guidance is now available
as a 460K PDF file in its entirety at acusafe.com.
Some Areas will be New to Some Facilities
The Human Factors Program will be addressing some areas that may be
new to some facilities. These include the consideration of human systems
as causal factors in the incident investigation process for major chemical
accidents as well as near misses. Another area that many sites will have
to formalize is the requirement to conduct Management of Change prior to
staffing changes for changes in permanent staffing levels/reorganization
in operations or emergency response. Also, employees and their
representatives must be consulted in the Management of Change.
PHA Human Factor Considerations
OSHA has required Process Hazard Analysis (PHA) for facilities and
modifications to facilities since 1992. The County guidance document
suggests that facilities should consider conducting procedural PHA's for
two distinct situations. First, there are certain processes or activities
for which a procedural PHA can provide a more thorough and efficient
review than a traditional PHA (e.g., unloading/loading, complex valve
configurations). Second, there are certain activities or procedures within
a process that the source can identify as having "high active failure
likelihood and high hazard potential." For these activities, the
stationary source should conduct a traditional PHA on the process, but may
also elect to conduct procedural PHA's on specific procedures conducted
within the process (e.g., sampling).
Procedure Development Formalized
The suggestion is made in Chapter 6 of the guidance document that
facilities must determine which operating procedures to write or to verify
that they have written procedures for every task of the operation deemed
necessary. The procedures must be written to avoid the latent conditions
that could cause active failures (i.e., format, conciseness of statements,
written for the user). This chapter applies to all operating procedures.
Maintenance procedures and safe work procedures (e.g. hot work permits)
were not explicitly included in the human factors element of County
Ordinance; however, stationary sources should consider applying the basic
principles of this chapter to all procedures.
Jo Haegert reported that actual development of
procedures or revision of existing procedures could take longer than the
January 2001deadline for submitting the plan. She said, "a reasonable
time line could be submitted in the plan and then the County would track
progress against that plan."
Some New Requirements for Task Analysis
Stationary sources must develop a process for procedure development
that includes identifying the hazards associated with the tasks and
incorporating input from personnel with expertise in the process. One
method for developing comprehensive task descriptions and procedures is to
conduct task analyses. Task analysis techniques may be applied during the
design mode, audit mode, or retrospective mode. Task analysis can help to
ensure that the most efficient method is identified and that discrepancies
between individuals and shifts are eliminated. Task analysis results may
be used as input to the content of operating procedures, training, and
operating manuals. Task analysis results may also be used during incident
investigations to explicitly identify differences in the prescribed way of
performing a task and the actual way it was performed. Several acceptable
task analysis techniques exist, such as Hierarchical Task Analysis,
Tabular Task Analysis, and Timeline Analysis.
Human Factors Considered in Management of
Organizational Changes
The CMA's Management of Safety and Health During Organizational Change
is drawn upon heavily in the section that applies to managing
organizational changes. It requires that each facility develop criteria or
guidance to assist appropriate personnel in determining when an MOC for an
organizational change should be initiated.
One such requirement is for a "reduction in the
number of positions, or number of personnel within those positions in
operations, including engineers and supervisors with direct
responsibilities in operations; positions with emergency response duties;
and positions with safety responsibilities."
Still another is "substantive increase in the
duties in operations for those positions."
Some facilities in Contra Costa have already
developed their internal procedures and started using these techniques in
optimizing staffing levels on processing units.
The CMA publication advocates the use of a team to
scrutinize staffing changes and the County guidance advises that this will
satisfy the requirement that employees and their representatives be
consulted in the Management of Change of organizations. The team should
include employees and their representatives, as appropriate, from
engineering, maintenance, and operations as well as safety and health. If
you have further questions on the regulation or how to comply, contact
AcuSafe for assistance.
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©2002, All Rights Reserved
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