Case Study: Edgecombe County achieves faster, submeter-accurate water and wastewater mapping with Trimble GPS Analyst

Edgecombe County Inventories Entire Water/Wastewater Structure

Edgecombe County, North Carolina, faced a critical water-supply challenge and launched a countywide replacement of its water/wastewater system. Midway through the $40M project the county hired The Wooten Company to build a detailed GIS inventory of 400 linear miles of mains—mapping thousands of features (valves, manholes, hydrants, pump stations) with up to 15 attributes each—on a tight two‑month schedule and integrating the results into the county’s ArcInfo enterprise geodatabase.

Wooten deployed Trimble GeoXT handhelds running ESRI ArcPad with Trimble GPScorrect and the GPS Analyst ArcGIS extension to check out datasets, collect attribute and location data in the field, and perform differential postprocessing directly inside ArcGIS. The workflow doubled daily collection rates for small features, produced sub‑meter accuracy (<1 m), reduced postprocessing time from about an hour to minutes, and delivered a seamless geodatabase used for system monitoring, maintenance, security and long‑term water‑resource management.

Edgecombe County

Lorenzo Carmon

County Manager