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Each location is matched against EPA's mapped community water system service areas to identify the serving public water system. A location with no mapped service area returns an explicit NO_SERVICE_AREA row (likely a private well), never a false clear." }, "pwsids": { "title": "PWSIDs to screen directly", "type": "array", "description": "Optional. Screen specific public water systems by 9-character EPA PWSID (for example [\"MI0002310\"]) without a coordinate lookup. Combined with any locations supplied above.", "items": { "type": "string" } }, "includeViolations": { "title": "Include SDWA violations", "type": "boolean", "description": "Fetch the system's full Safe Drinking Water Act violation history from EPA SDWIS and roll it up (health-based, monitoring/reporting, treatment technique, Lead & Copper Rule, public-notification tier)." }, "includeLead": { "title": "Include lead and copper results", "type": "boolean", "description": "Fetch Lead and Copper Rule 90th-percentile tap results and join them to their monitoring periods, so the reported value is dated rather than undated." }, "includePfas": { "title": "Include UCMR5 PFAS results", "type": "boolean", "description": "Screen the system against EPA's UCMR5 occurrence dataset (1.9 million results, 29 PFAS analytes plus lithium). Turn off for a faster run when PFAS is out of scope." }, "includeEnforcement": { "title": "Include formal enforcement actions", "type": "boolean", "description": "Fetch the system's SDWIS formal enforcement action history and report the count and most recent action." }, "violationYears": { "title": "Recent-violation window (years)", "minimum": 0, "maximum": 60, "type": "integer", "description": "How many years back counts as a recent health-based violation for the screening flags. The full violation history is still summarised regardless. Set 0 to disable the window." }, "maxViolationDetails": { "title": "Max health-based violation detail records per system", "minimum": 0, "maximum": 500, "type": "integer", "description": "How many individual health-based violation records to include in the health_based_violation_details array on each row, newest first. 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