DISCLAIMER: This document is distributed solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. It has not been formally disseminated by the U.S. Environmental Protection Agency. It does not represent and should not be construed to represent any agency determination or policy.
The Office of Research and Development has released a publicly available dataset of community water system (CWS) service area boundaries (SAB). CWS are defined as systems that provide water for human consumption through pipes or other constructed conveyances to at least 15 service connections or serves an average of at least 25 people year-round [1]. Under the safe drinking water act (SDWA) and various drinking water rules (see EPA Drinking Water Regulations) public water systems must test and report on the quality of their drinking water. These boundaries enable linking SDWA violations to their associated geographic areas, and concomitantly linking treated community water system water to their respective customers. This service area boundary dataset is a combination of publicly available service area boundaries and modeled boundaries. This repository documents how the data was collected and modeled and details the modeling techniques used to generate this dataset. All R scripts used in the production of the dataset are available here.
This repository is split into folders which contain data, code and analysis used to create the ORD service areas.
Analysis
Various code and documents with supporting analyses.
Documentation
Document describing the process for creating the service area dataset.
External_Boundaries
Contains source information for boundaries obtained from state and utility sources.
Input_Data
This folder contains raw data that is needed to initiate the execution of code. Some large datasets are not included in this folder and need to be downloaded by the end user. These are described in the README file within the 'Input_Data' folder.
Output_Data
Final output dataset location.
Workflow
This folder contains all of the code used in the creation of the boundaries. Another 'Data' folder also exists within the 'Workflow' folder, which contains data created throughout the process. More information on the code can be found in the README file within the 'Workflow' folder.
This repository reused material from GSA, 18F , Lawrence Livermore National Lab, and from the Consumer Financial Protection Bureau's policy.
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