Query Illinois's 'Drinking Water Watch' state portal for a public water system's inventory and sample results

domain: water.epa.state.il.us/dww · 4 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Go to water.epa.state.il.us/dww/index.jsp, the live Drinking Water Watch portal for the Illinois EPA Division of Public Water Supplies.
  2. Search by public water system (PWS) ID, system name, or county to open a system's detail page.
  3. Use the 'Water System Facilities' tab to review treatment facility information and the 'Sample Results' tab for recent compliance sample data.
  4. Cross-check any PWS ID found here against Illinois EPA's own SDWIS-based compliance pages (epa.illinois.gov/topics/compliance-enforcement/drinking-water/sdwis.html) if reconciling with federal reporting.

Known gotchas

Related routes

Query California's public water system directory and compliance data via the state's CKAN open-data API (Drinking Water Watch dataset)
data.ca.gov · 5 steps · unrated
Query Pennsylvania's Drinking Water Reporting System (DWRS) and Consumer Confidence Report (CCR) data tool for a public water system
drinkingwater.state.pa.us (PA DEP) · 4 steps · unrated
Query Illinois water wells via the ISGS ILWATER ArcGIS MapServer
maps.isgs.illinois.edu · 5 steps · unrated

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