distribution integrity management plan identify and ... · distribution integrity management plan...
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DISTRIBUTION INTEGRITY
MANAGEMENT PLAN
IDENTIFY AND IMPLEMENT
MEASURES TO ADDRESS RISK
AND EVALUATING
PERFORMANCE 1
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§192.1007(d)
§192.1007(d)- Identify and implement
measures to address risks
Determine and implement measures designed
to reduce the risks from failure of its gas
distribution pipeline. These measures must
include an effective leak management program
(unless all leaks are repaired when found).
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§192.1007(e)– Measure Performance
Development and monitoring of performance to
evaluate the effectiveness of IM programs
§192.1007(f)– Periodic Evaluation
Revaluate threats and risks
Conduct complete program evaluations at
appropriate periods , but at least every 5 years
Must consider the results of performance
evaluations
§192.1007(E) &(F)
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§192.1007(G)
§192.1007(g)– Report Results
Report, on an annual basis, the four measures
listed in paragraphs (e)(1)(i) through (e)(1)(iv) of
this section, as part of the annual report required
by § 191.11.
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PURPOSE
Risk = Likelihood X Consequence
Target measures to reduce the likelihood
and/or the consequences of an occurrence
Preventative & mitigative (P&M) measures
Preventative – reduce likelihood
Mitigative – reduce consequences
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PURPOSE
Implement appropriate techniques to
manage and reduce risk based on the results
of the relative risk ranking.
Address facilities with high relative risk.
(Criteria?)
More than just pipe replacement.
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PURPOSE
Measures are dependent on:
The asset or facility group being addressed
The associated threat(s)
Whether the threat is current or potential
The viability of the action in managing the
relevant risk factors
Short term, long term, or condition specific
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EXAMPLES
Accelerate replacement of unsatisfactory pipe or facilities
Perform better leak surveys
Modify locating, maintenance, patrolling, monitoring, construction, and records procedures
Condition specific measures
Weather related leak surveys or patrols
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EXAMPLES
Implement results of ongoing R&D
Plans to shut in systems during hurricanes
or flooding events
Monthly rectifier readings
Riser replacement programs
Cast iron surveys after earthquakes
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REFERENCE MATERIAL
• GPTC Appendix G-192-8 section 6.3.
• APGA SHRIMP application provides a
pick list of possible
Additional/Accelerated Actions (“A/A
Actions”). Handout contains the list of
these actions.
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11/14/2010
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CASE STUDY
Inspector watching a saddle fusion in the
field
Identified that joiner was not following
company procedures
Inspector asked to
cut out and test fusion
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BACKGROUND
Joint passed visual examination
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BACKGROUND
Joint after testing
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BACKGROUND
Joiner worked for 5 years
At least 135 installations in past 2
years – known locations
No location or number history for other
3 years
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IMPACT ON IM
Change in threats Incorrect operations Construction/joining Once all bad joints removed does the
threat decrease?
Change in risk Risk increases for system because of
unknown number and locations
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IMPACT ON IM
P&M measures
Remove all known fusions by joiner
Determine other potential locations
Monitor other installations
Performance measures
Number of fusions removed
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“EFFECTIVE” LEAK MANAGEMENT
An Effective Leak Management Program includes:
Locate the leaks in the distribution system
Evaluate the actual or potential hazards
associated with these leaks
Act appropriately to mitigate these hazards
Keep records
Self-assess to determine if leak
management program is effective.
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GPTC SECTION 6.3 SELF AUDITS
Perform self-audits, define metrics, and
monitor trends such as:
(a) Schedule of leak survey - meet timeframes?
(b) Survey effectiveness - consistent evaluation?
(c) Repair scheduling - made within specified time?
(d) Repair effectiveness – recheck for leaks?
(e) Leak records – maintained as required?
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PERFORMANCE MEASURES - ANNUAL REPORT FORM
19
Reported Performance Measures
1. Number of Hazardous Leaks
Eliminated or Repaired by
cause
2. Number of Excavation
Damages
3. Number of Excavation Tickets
4. Total number of leaks
eliminated or repaired by cause
Must also report EFV metrics.
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PERFORMANCE MEASURES
Two additional required performance measures
operators must develop and monitor but not
report are:
Number of hazardous leaks either eliminated
or repaired categorized by material
Any additional measures the operator
determines are needed to evaluate the
effectiveness of the operator’s IM program in
controlling each identified threat.
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MECHANICAL FITTING FAILURE REPORT
21
FAQs about
Mechanical
Fittings:
C.5.3
C.5.4
C.5.5
C.5.6
ADB 2012-07
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ADB – 2014-05
Guidance for Strengthening Pipeline
Safety Through Rigorous Program
Evaluation and Meaningful Metrics
Issued October 15, 2014
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ADB – 2014-05
Describes process for any program
evaluation for continuous improvement
Written for integrity management evaluation,
but processes useful for other program
evaluations
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PROGRAM EVALUATION
Ongoing process to measure, assess and
evaluate program performance using leading
and lagging metrics
Leading indicators measure the accomplishment
and effectives of programs and associated
activities
Lagging indicators measure outcomes of the
programs and activities, provide documented
success or failure of activities.
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PROGRAM EVALUATION
Leading indicators
How well program is being implemented
Are we doing what we said we would do?
Examples include:
Use of P&M or accelerated action activities
Collection of missing or unknown data
Pipe replacement programs
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PROGRAM EVALUATION
Lagging indicators
May be considered results
How well did we do it
Examples include:
Leaks by cause
Third party damage
Repaired leaks, defects or pipe replacements
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PERFORMANCE MEASURES
Develop a performance measure for each measure
or groups of measures to reduce risk (FAQ C.4.e.2)
May use existing data to develop baselines from
which to track trends of performance measures.
Use numeric data (counted, tracked, monitored,
supported, reproducible).
Performance measures are used to determine if
risk management techniques or practices are
effective.
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PROGRAM EVALUATION
Formal controlled process for continual
improvement of programs
Series of systematic steps for learning,
analysis and knowledge of process
Integral part of the quality control/quality
assurance process
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PROGRAM EVALUATION
Written detailed procedures describing
process
Should include sufficient detail about
processes/procedures for an outside
observer, or a new employee becoming
involved to understand how an activity is
performed and provide consistent,
reproducible results.
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PROGRAM EVALUATION
Program evaluation
Following processes and regulatory
requirements
Program effectiveness
Increasing integrity of facilities and improving
safety
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PROGRAM EVALUATION
PDCA (Plan-do-check-act)
PDSA (plan-do-study-act)
Deming cycle
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PROGRAM EVALUATION - PLAN
Establish processes, objectives and goals
Select metrics
What will be measured
How it is measured
Who will provide data
When will data be collected
Why the metric was chosen
Implementation metrics – planned activities such as pipeline replacement, or accelerated actions
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PERFORMANCE MEASURES
Examples of performance measures can be found in:
GPTC Appendix G-192-8 Section 7.2 Examples of performance measures
APGA SHRIMP (spreadsheet handout)
Section 9 of ASME B31.8S-2004, “Managing System Integrity of Gas Pipelines” can also be used for the selection of performance measures that can be applied to gas distribution systems
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PROGRAM EVALUATION - PLAN
Goals or metrics periodically reaffirmed
Can change over time
5 year pipe replacement program – goes away after completed
Can be normalized over time, mileage, pipe material or throughput to reduce data spikes
5 year rolling average
Per 100, or 1000 miles
Goals or metrics shared
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PROGRAM EVALUATION - METRICS
Characteristics of effective metrics
Reliable – unbiased, specific and discrete
Repeatable – similar data and results
Relevant – meaningful to system
Meaningful – sufficient data to measure +/-
change
Zero year after year not a useful metric
Easy to use and compare – across industry or
company
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PERFORMANCE MEASURES
Short term goals such as effect of vintage pipe replacement programs
Long term goals – monitored every year
Shared goals such as monitoring third party damage as part of both damage prevention and IM
Specific goals for geographic regions or parts of system
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PROGRAM EVALUATION - DO
Implement and execute the processes
P&M measures or additional actions
Perform required elements
Assessments for IM
Stakeholder communication
Regulatory required tests and inspections
Collect data or information
How often is data collected
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PROGRAM EVALUATION - CHECK
Outcomes monitored to test validity for
success, problems or improvement
Analyze the data against requirements and
expectations
May not know at beginning what data will show
Reach expected goals or performance levels
Perform all the implementation activities
Number of additional actions or activities
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PROGRAM EVALUATION - CHECK
Report results to determine if objectives and
results being achieved
Look for trends and deviations
Analyze differences to determine causes and
corrective actions
Determine if using proper metrics
Zero year after year valid?
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PROGRAM EVALUATION – ACT
Integrate the learning generated by the process
Identify corrective actions where actual results differ significantly from expected results
Accuracy of data or identified metric
Procedures inadequate or inaccurate
Changes to metrics - adding new or deleting old out of date
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PROGRAM EVALUATION – ACT
Implement the necessary changes
Changes identified, but never implemented
Person responsible for implementation
Documentation of implementation
Management of change process
Only required for IM, but good practice
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PROGRAM REVIEW FREQUENCY
Determine Interval for Program Review
and Evaluation
At least every 5 years
Plan evaluation frequency
Long enough for meaningful
changes
Short enough to recognize trends
Additional evaluations as needed
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PROGRAM REVIEW FREQUENCY
Based on complexity of system and changes
in risk factors
Could be similar frequency as review of
operational plans and procedures.
Could be after a plan milestone such as a
major pipe replacement program.
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PROGRAM REVIEW FREQUENCY
Determine Interval for Program Review and
Evaluation cont…
Triggered by needed change to performance
measure or measure to reduce risk.
Dependant on time frame when the operator
anticipates that the measure to reduce risk
will produce meaningful results
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PROGRAM EVALUATION
Periodic self assessments
Internal/external
Management review
Other evaluations (including regulatory)
Reviews validate conclusions
Reviews provide performance feedback and
improvements to process
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WRITTEN PROCEDURES
What is the evaluation process?
Scope, objectives and frequency of review
Steps and documentation
Data collection
Performance goals
Who is responsible or participates in review
How deviations are addressed
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PROGRAM EVALUATION PROCEDURE
Procedure must describe the program
evaluation actions and include:
Frequency of review
Incorporate new system information
Re-evaluation of threats and risk
Frequency of measures to reduce risk
Effectiveness of measures to reduce risk
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PROGRAM EVALUATION PROCEDURE
Procedure must describe the program
evaluation actions and include
(cont..):
Modify the measures to reduce risk and
refine/improve as needed
Performance measures, their
effectiveness, and if they are not still
appropriate, refine/improve
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WRITTEN PROCEDURES
What is the evaluation process?
Corrective actions or changes
Responsibility for implementation of changes
Documentation requirements
Define significant changes
Example – OQ, O&M Manual
Communication of changes
Record keeping requirements
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EFFECTIVENESS EVALUATIONS
Is the program doing what is desired and
expected
Deviations from expectations
Right metrics
Documentation of deviations
Having data is not an evaluation
Need to understand what information and
data means
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CASE STUDY
Gas distribution system on New
Jersey shore
Both barrier islands and mainland
Superstorm Sandy Landfall on 10/29/2012
Storm surge ≥13.3 feet
System pressurized
during storm
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CASE STUDY - CHANGING
THREATS
After storm hit
• Curtailed service to 31,000 customers
• Repressurized or replaced 270 miles of main in less that 6 weeks
• Installed one mile of new 12” steel main in 3 weeks
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12” 60lb main
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CHANGING THREATS
Roads and bridges washed away Sand drifts 7 feet tall Debris and flooding Leaks Valves and other equipment buried
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CHANGING THREATS
Threats have changed
Corrosion threats
External
Internal
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CHANGING THREATS
Threats have changed
Outside force damage
Third party damage
Materials and construction
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PLAN EVALUATION
Identified threats and therefore
risk rankings should change
Should this event trigger an
integrity management evaluation?
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QUESTIONS?
58