Dimensional Control Surveying & Design Support for Industrial Facilities
High-accuracy dimensional control surveying and constructability-focused design support for oil & gas operators, EPC firms, and industrial facility owners.
Request Dimensional SupportProviding precision dimensional control for industrial project teams
Pacific West Dimensional LLC bridges the gap between design intent and construction reality. We are a California-based technical services contractor specializing in high-accuracy dimensional control surveying, as-built verification, and constructability-focused engineering support for oil & gas, industrial and government infrastructure facilities.
Founded and led by Donnald A. Maglupay, our company brings 25+ years of progressive industrial field and technical experience: 17+ years in manual field surveying and technical design/project support, followed by 8+ years specializing in dimensional control surveying, technical field verification, and field-driven technical design support. We support owners, EPC firms, and engineering teams by delivering reliable field data and construction-ready documentation that prevents costly clashes and rework.
Our field-driven approach ensures fabrication-ready solutions based on actual site conditions, not just design assumptions.
17+ years manual surveying & technical design + 8+ years dimensional control surveying
CEO provides direct oversight on every project for quality assurance
Reduces need for scaffolding and high-risk manual measurements
Key advantages that set us apart in dimensional control surveying
Proven expertise supporting multi-million-dollar projects for ExxonMobil, Marathon Petroleum, Dow Chemical, Phillips 66, and government facilities
Leica TS16 Total Station, Automet Software, AutoCAD, and MicroStation expertise for precise dimensional control
Proven ability to prevent costly rework and schedule delays through accurate dimensional control and documentation
25+ years progressive experience combining field surveying, technical design, and dimensional control
Certified for access and safety in industrial environments
Construction Safety
Secure Area Access
Offshore & Onshore
Client Safety Programs
Pacific West Dimensional LLC uses Leica robotic total stations, Automet dimensional-control software, and field-to-CAD workflows to support high-accuracy dimensional control, field verification, 3D CAD modeling, and constructability support. Our technology helps identify dimensional deviations at critical interfaces before fabrication or installation, supporting first-time fit and protecting project schedules.
Pacific West Dimensional LLC maintains safety, precision, quality, and client-readiness standards for industrial environments. Our dimensional control methods help prevent rework, eliminate dimensional risk, and protect project schedules while prioritizing jobsite safety.
Pacific West Dimensional LLC delivers field-validated dimensional certainty for oil & gas, refining, chemical, petrochemical, power generation, offshore and heavy industrial scopes. Services include dimensional control surveying, technical field verification, as-built measurement and documentation, constructability support, and technical design/drafting support (Non-EOR).
Preserving dimensional accuracy from verified field conditions through fabrication and first-time fit in the field.
Point cloud scanning provides broad spatial documentation, while surface-based data can introduce uncertainty at tolerance-critical interfaces due to:
Pacific West Dimensional LLC focuses on directly measured discrete coordinates at critical connection points, ensuring accuracy where fit-up matters most.
Verifying the connection points that determine whether systems will fit before fabrication and installation.
Ensuring first-time fit by verifying actual field geometry before fabrication and execution.
Professional qualifications ensuring quality, safety, and compliance
131745898
Small Business
Santa Paula, California, USA
541370 – Surveying and Mapping
Specialized services for industrial and infrastructure projects
Proven ability to eliminate dimensional risk on multi-million-dollar industrial facilities
Supported offshore and onshore maintenance and modification activities through dimensional control surveys and as-built documentation for platform reactivation projects.
Dimensional Control Surveys, As-Built Documentation, Fabrication Verification
Extensive experience supporting maintenance, modification, fabrication, and pre-turnaround activities for leading industrial operators across the United States.
Marathon Petroleum, Dow Chemical, Phillips 66, Beta Offshore, DCOR, Venoco
Dimensional control surveying and technical design support for government infrastructure facilities including piping modification surveys and structural verification.
Structural Surveys, Piping Verification, As-Built Documentation
Comprehensive dimensional control solutions across multiple sectors
State-of-the-art equipment ensuring millimeter accuracy and efficiency
High-precision robotic total station with 1" angular accuracy and 1.5mm + 2ppm distance measurement for critical dimensional control surveys.
Specialized dimensional control software for processing survey data, generating accurate reports, and creating detailed 3D models.
AutoCAD & MicroStation for 3D modeling, piping isometric creation, as-built documentation, and design verification.
Statement of Compliance: Pacific West Dimensional LLC provides non-stamped dimensional control surveying and design support services. All engineering deliverables requiring professional seals are performed under the direction of licensed Professional Engineers.
Discuss your dimensional control requirements with our experts
Donnald A. Maglupay, Founder & Managing Member
25+ years progressive experience: 17+ years manual surveying & technical design + 8+ years dimensional control
donnald.maglupay@
961 Coronado Circle, Santa Paula, CA 93060
DUNS: 131745898
Primary NAICS: 541370 – Surveying and Mapping
Engineering Support: 541330 – Engineering Services
Drafting Support: 541340 – Drafting Services
Website: https://pacificwestdimensional.com
Ready for vendor qualification or need dimensional support?