Specifications include, but are not limited to: Phase 1 – Data Collection & Review - Task 1.1 – Data Collection. As a means of initiating the project activities, the City of Aiken, S.C. (City) will be provided with an initial list of basic data needed to conduct the study. The data request will include items such as financial and operating data, customer account and billing data, reports prepared by others, budgets, audits, capital improvement programs, official bond statements and debt service schedules. Task 1.2 – Data Review. Data will be reviewed for completeness and to ensure a sufficient understanding of historical utility operations. Based on the reviews, other additional data items may be requested during the project. Phase 2 – Revenue Requirements and Rate Determinants - Task 2.1 – Historical Billing Data Analysis. The data request document will provide instructions for the development of historical customer billing information. It is anticipated that the billing information will be provided in a format necessary to summarize the water and wastewater system accounts and volumes by customer class, meter size and usage blocks for a recent historical period for which audited revenues exist. The customers and flows provide the basis on which operating revenues are derived and are therefore the primary factors utilized in reviewing the user rates and charges..