Seattle Public Utilities (SPU) owns and operates two Solid Waste Transfer Stations. The stations collect, consolidate and transfer solid waste and recyclables from self-haul customers and collection contractors 362 days a year. Each year there are approximately 400,000 customer trips to the stations resulting in more than $12,000,000 in gross revenue. Each transfer station transaction is recorded in the existing Transfer Station Billing System (TSBS). SPU acquired the current TSBS 17 years ago from Norwesco Inc. Norwesco software (RICsoft) is used at both transfer stations. Various devices are connected to the TSBS such as card readers, light signals, vehicle scales, receipt printers, etc. Data collected during the day from each transfer station is transmitted to a downtown Transfer Station Billing System. SPU Accounting staff uses the downtown TSBS to verify and support completion of over $30,000,000 in contractor payments, to bill contract and self-haul customers and to interface with the Solid Waste Data Integration (SWDI) system. SPU Economic Services uses data transferred from the transactional system to SWDI on a nightly basis to produce reports and analysis on waste recycling and disposal.