A location system and method operable to locate mobile units has a mobile unit operable to transmit wireless signals. A wireless network is used to receive the wireless signals and to report data used to estimate the location of the mobile unit. A location server is used to process the data reported by the wireless network. The location server generates a plurality of location reports for the mobile unit. A preprocessing component is operable to communicate with the location server. The location reports generated by the location server are transferred to the preprocessing component. A location application is operable to communicate with the preprocessing component, and interfaced to a database operable to store data records related to the mobile unit. The preprocessing component processes the location report and stores the data records only if the data in the data records meets a specified criteria.