Environment

USGS Water parameter-code catalog

Full parameter-code dictionary (~22,000 codes across ~30 groups). Filter by parameter group (PHY=physical, BIO=biological, NUT=nutrients, INM=inorganic, ORG=organic, etc.). Served by the OGC parameter-codes collection.

get/api/v1/environment/usgs-water/parameters

Query parameters

groupstring

Parameter-group code filter (PHY, BIO, NUT, INM, ORG, INF, ISO, RAD, MIC).

limitinteger

Maximum parameter codes to return.

Response

Parameter-code dictionary entries with descriptions and units.

Example response

{
  "meta": {
    "endpoint": "/api/v1/fred/us/cpi",
    "data_time": "2026-04-16T14:30:00Z",
    "response_time": "2026-04-16T14:30:12Z",
    "provider": "Sugra API v1.0.1",
    "data_age_days": 8.532,
    "source": "sugra_crypto",
    "attribution": "Short interest and Reg SHO daily short volume data is owned by and sourced from FINRA (Financial Industry Regulatory Authority).",
    "fallback_chain": [
      "sugra_crypto",
      "sugra_finance"
    ],
    "period": "2026-Q1",
    "notes": "the UKMTO report behind these counts is dated 2026-08-21 and is 11 days old"
  }
}

Changes

Changed in 2 of the 22 revisions of this API.15

Sep 1, 2026328d061c12ca3See the full diff
- ○
  added the optional property meta/data_age_days to the response with the 200 status
  response-optional-property-added
- ○
  added the optional property meta/notes to the response with the 200 status
  response-optional-property-added
- ○
  added the optional property meta/period to the response with the 200 status
  response-optional-property-added
Aug 8, 20264c4530760ba112See the full diff
- ○
  added the optional property code to the response with the 401 status
  response-optional-property-added
- ○
  added the optional property code to the response with the 429 status
  response-optional-property-added
- ○
  added the optional property code to the response with the 503 status
  response-optional-property-added
- ○
  added the optional property hint to the response with the 401 status
  response-optional-property-added
- ○
  added the optional property hint to the response with the 429 status
  response-optional-property-added
- ○
  added the optional property hint to the response with the 503 status
  response-optional-property-added
- ○
  added the optional property plan to the response with the 401 status
  response-optional-property-added
- ○
  added the optional property plan to the response with the 429 status
  response-optional-property-added
- ○
  added the optional property plan to the response with the 503 status
  response-optional-property-added
- ○
  added the optional property reason to the response with the 401 status
  response-optional-property-added
- ○
  added the optional property reason to the response with the 429 status
  response-optional-property-added
- ○
  added the optional property reason to the response with the 503 status
  response-optional-property-added

Full history