Environment Source URL

Source

FEMA NFHL · vintage 2026 · refresh cadence: continuous

Direction of better

No universal direction; user preference determines what is "better".

Unit

Values are reported in url.

Where the data lives

Tables: municipality_metrics

Columns: environment_source_url

Input field: environment_source_url

JSON-LD example

Every value emitted by ValiFit (in /api/v1, MCP responses, on-page JSON-LD) carries a propertyID set to this metric_id, so AI clients can resolve it back here in one round-trip.

{
  "@type": "PropertyValue",
  "propertyID": "town.environment_source_url",
  "name": "Environment Source URL",
  "value": "example",
  "unitText": "url",
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "composite",
      "value": "Environment"
    },
    {
      "@type": "PropertyValue",
      "name": "level",
      "value": "city"
    },
    {
      "@type": "PropertyValue",
      "name": "direction",
      "value": "optimize"
    },
    {
      "@type": "PropertyValue",
      "name": "source_year",
      "value": "2026"
    },
    {
      "@type": "PropertyValue",
      "name": "fha_safe",
      "value": true
    }
  ],
  "valueReference": {
    "@type": "QuantitativeValue",
    "additionalType": "https://valifit.com/catalog/metric",
    "identifier": "town.environment_source_url",
    "sameAs": "FEMA NFHL"
  },
  "mentions": [
    {
      "@type": "Dataset",
      "@id": "https://valifit.com/sources/fema-flood-zones",
      "identifier": "FEMA_FLOOD_ZONES",
      "name": "FEMA National Flood Hazard Layer",
      "url": "https://www.fema.gov/flood-maps/national-flood-hazard-layer",
      "sameAs": "https://www.fema.gov/flood-maps/national-flood-hazard-layer",
      "creator": {
        "@type": "Organization",
        "name": "FEMA"
      },
      "temporalCoverage": "continuous",
      "dateModified": "2026-05-31"
    }
  ]
}