A major midstream energy operator consulted with Altamira to resolve documentation gaps and validate MAOP for a legacy metering and filtration facility. Due to multiple ownership changes, records were fragmented and incomplete, complicating regulatory compliance. Altamira conducted a full integrity records audit and delivered an audit-ready line file aligned with 49 CFR Part 192.

A major midstream energy operator required a comprehensive compliance audit and documentation reconciliation for a metering and filtration facility supporting one of its regional transmission pipelines. The project involved legacy infrastructure that had changed ownership multiple times, resulting in fragmented records and inconsistent documentation practices across stakeholders.

Many physical modifications—such as component replacements, tie-ins and pressure boundaries—had been implemented without being fully captured in the official documentation. This made it difficult for the client to verify asset integrity, trace material origins or confirm MAOP compliance without a comprehensive forensic review of site data, construction records and third-party submittals in accordance with 49 CFR Part 192.

Altamira’s Integrity Services team conducted a full technical compliance review and assisted with compiling a series of auditable project records that aligned with the system’s physical configuration and applicable standards. These services included:

• Cross-referencing of geotagged site photographs, GPS survey data, redlining of as-built documentation to uncover discrepancies, identifying undocumented component tie-ins and resolving ambiguities in material ownership across multiple construction phases.
• A full audit of all key construction records was conducted to include Material Test Reports (MTRs), Visual Welding Inspection Reports (VWIR), X-ray radiography logs, Bill of Materials (BOM), pressure test reports and other documents. These were reviewed to confirm weld traceability, material grades, SMYS, inspection alignment and procedure validity.
• All pressure tests were verified to exceed the client specified MAOP safety factor. Additionally, calculations were performed to ensure the components were not stressed beyond their Specified Minimum Yield Strength (SMYS).
• Altamira coordinated redline corrections across multiple iterations of the engineering drawings, including updates to match lines, section and details callouts and dimensional clarifications. The team ensured all revisions adhered to client CAD standards and were suitable for integration by external drafters.
• Over 700 pages of documents were reviewed for the filtration and metering components of the station. The review confirmed that all prefabricated assemblies met design specifications and that their records aligned with the project’s BOM and MTR traceability requirements.
• Altamira also managed multi-phase coordination with third-party vendors and internal client stakeholders to retrieve missing documentation, clarify component specifications, and oversee document resubmittals across multiple correction cycles.

The final deliverable was a fully integrated, audit-ready line file containing a validated summary page, dimensional verification data, redlined construction documents, certified MTRs and a full record of material and component traceability.

Altamira confirmed that all installed materials met applicable pressure and material standards and verified that no components were overstressed under test conditions. The team delivered a clean, version-controlled audit package aligned with PHMSA’s Mega Rule, ready for both internal QA and regulatory review.

The project also introduced scalable workflows for managing redlines, fabrication packages and vendor coordination which reduced the administrative burden for future projects. By resolving documentation gaps and ensuring compliance, Altamira strengthened the client’s system integrity, improved long-term traceability and minimized the potential for future project delays or rework resulting in long-term operational value for the client.