LW SURVEY COMPANYTARGETING THE WORLD

THE UNIQUE CHALLENGES OF “AS-BUILT” PROJECTS

WHO IS LW SURVEY? Established in 1998 by Les Welch in Duluth, MN.

12 Office locations

26 PLS professionals covering 33 States

10,000+ miles of major pipeline projects

6 Blue Sky Certified users

PRISM (custom data validation tools)

PPMS (Pipeline Project Management System)

PLAN YOUR WORK…WORK YOUR PLAN

…it takes a special kind of person to do as-built

R. CalvertLW Survey Skyline Certified Lvl III

SURVEY PREPARATION

Understanding the Client’s Pods Instance Which tables are “required” and which fields inside those table are “required”

Understanding the “domain lookups”

Dictionary types (text or numeric)

Reverse Engineering the Survey Code/Attributes Current Survey code list should be reviewed to ensure the capture of data satisfies the

client’s final needs

DATA PREPARATION

MTR Data Mill data from the manufacturer identifying pipe specifications and test reports.

IFC Data requisition IFC data (survey points, vector data, parcel data, imagery)

Above Ground Piping Drawings Typical or site specific fabrication drawings

Procurement Records What was purchased in order to validate what was used

Empty Data? What is the client’s standards for empty fields (“unk”, -1, “unknown”, “0”)

DATA STAGING

Final Tie-in is complete…what now? Validating Heat Numbers against MTR / Mill reports Checking for elevation busts Checking for Joint Lengths Duplicate x-ray numbers “AlignFM” or “REV” Checking collected data against client “domain table” values Loading BSDI tables for client PODS load.

Thank you for your time and attention!

We look forward to working with you in the future.