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Scope of Work: Developing a'preliminary inventory is Phase I of the LSLI process. The goa! is to identify, gather, organize, clean and categorize the data appropriately for Implementation into the 120Water Platform. Here is the process describing the various sections for Phase I of the LSLI process. • The Consider section outlines the steps that follow once we work with the clieni to identify data sources and receive the data from the client • The Ciean section details steps for bringing the data into a coding environment and preparing the data so that it can be combined • The Combine section details steps for merging data from different sources into a centralized LSLI data source. It is likely that the clean and combine processes will overlap when interacting with the data • The Verify section outlines the steps for organizing the data so that Verify can be budgeted and prioritized Consider The first step is to determine the best way to pull together the data set by leveraging some unique combination of the data sources that were previously identified. The goal is to consider "combine potential" by taking a closer look at the data. When developing a records -based LSLI, the current LCRR language permits the following as records: (i) All construction and plumbing codes, permits, and existing records or other documentation which indicates the service line materials used to connect structures to the distribution system. (ii) All water system records, including distribution system maps and drawings, historical records on each service connection, meter installation records, historical capital improvement or master plans, and standard operating procedures. (iii) All inspections and records of the distribution system that indicate the material composition of the service connections that connect a structure to the distribution system. (iv) Any resource, information, or identification method provided or required by the State to assess service line materials. It should be noted that the State may approve other sources of information not listed below for a system to use in their preliminary inventory. As states come up with their own policies, more information around these additional, acceptable sources will come to light. EPA is in the process of drafting and releasing Lead Service Line Inventory Improvements, as those are released, the Preliminary Inventory may be adjusted.