start_measure is a JSON Structure definition published by EPA — U.S. Environmental Protection Agency. It conforms to the https://json-structure.org/meta/core/v0/# meta-schema.
{
"$schema": "https://json-structure.org/meta/core/v0/#",
"$id": "https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/cip-service-start-measure-structure.json",
"name": "start_measure",
"description": "NHD flowline measure from which to begin the navigation.",
"type": "double",
"minimum": 0,
"maximum": 100
}
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