Systems to be surveyed were identified by querying both the system and source tables, to find all active systems with at least one groundwater source. In total, 1000+ individual groundwater source questionnaires were mailed to nearly 800 PWS systems meeting this criteria.
Response to the survey approached 50% with approximately 400 system owners/managers replying. Information obtained from the returned questionnaires was then used to check and update changes to the system table, which proved to be a valuable resource when contacting owners/managers for property access and directions to the locations of their groundwater sources.
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