The GPS data collection is mostly used during manhole inspections. The data is imported into a GIS mapping system. The data collected will provide the client with an overall view of the manholes in the system. To ensure accurate readings, we have a station available to the crew to collect data and verify proper mapping of the system. The field crews will start and end each data collection session by shooting known points that have been identified by the client. The work is downloaded and processed at the end of the day so that the field crew can visually identify areas that need verification. The data will also be compared to any existing as-built information that is available from the client so that any subtle differences can be identified and resolved. Once we are satisfied with the quality of the data, we will process it into the Microsoft Access database for delivery to the client. Back