What are PHMSA Pipeline Safety expectations for operators to determine new or changed HCAs?
Operators are expected to monitor conditions along their line. When they become aware of changes that create or change an HCA (e.g., population expands to encompass more of the area near the pipeline right-of-way), this information should be factored into their integrity assessment planning, risk analysis, and consideration of the need for additional preventive and mitigative risk controls. Information on operator-identified HCAs need not be provided to PHMSA Pipeline Safety for mapping.
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