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io.github.squidcode/tapwatermap

io.github.squidcode/tapwatermap · v1.0.0

Measured by MCP Station

Description written by the publisher, not verified

Query US tap-water quality from the EPA's SDWIS records — by city, system, or contaminant.

Connect

claude mcp add --transport http tapwatermap https://mcp.tapwatermap.com/mcp

{
  "mcpServers": {
    "tapwatermap": {
      "url": "https://mcp.tapwatermap.com/mcp"
    }
  }
}

Tools as reported by the server

• search
  Search TapWaterMap for US cities by name. Returns matching cities with an id you can pass to `fetch`. (ChatGPT/Deep-Research compatible.)
• fetch
  Fetch the full plain-English EPA tap-water record for a city id (e.g. 'vt/burlington') returned by `search`. (ChatGPT/Deep-Research compatible.)
• search_cities
  Find covered US cities by name, optionally within a state. Returns counts + the page URL for each.
• get_city_water
  The core tool: what the EPA has on record for a city's tap water — the active community water systems serving it, populations, sources, and violations (contaminant, health-based or not, dates, status, level vs limit when recorded). Plain-English, sourced, never a safety verdict.
• get_water_system
  EPA record for a single water system by its PWSID (e.g. 'VT0005053'): name, population served, source, and violations.
• list_state_cities
  List all covered cities in a state (with violation counts).
• find_cities
  Filter/rank cities across the dataset — e.g. cities in TX with open health-based violations, or cities with a specific contaminant. Returns ranked matches.
• compare_cities
  Compare the EPA records of several cities side by side. Pass cities as 'City, ST' strings.
• explain_contaminant
  Plain-English explanation of an EPA contaminant by name or code: the EPA name, whether the EPA classifies it as health-based, and how often it appears in our records. Not medical advice.
• coverage_stats
  What TapWaterMap covers: states, cities, total EPA violation records, and the data quarter/date.

Website · JSON · Text for agents · Registry updated 2026-06-25