---
title: "Single USGS site metadata"
method: GET
path: "/api/v1/environment/usgs-water/site/{site_id}"
tags: ["Environment"]
---

# Single USGS site metadata

`GET /api/v1/environment/usgs-water/site/{site_id}`

Fetch expanded metadata for a specific USGS monitoring site: altitude, drainage area, HUC, county, state, aquifer, well depth. Dual-path: legacy WaterServices primary, OGC monitoring-locations fallback.

## Path parameters

- `site_id` string, required — USGS site number (8-15 digit numeric string).

## Response `200`

Detailed site record for the requested USGS station.

- EnvelopeUSGSWaterSiteDetailData
  - `data` USGSWaterSiteDetailData, required — Response for GET /site/{site_id}.
    - `agency` string, nullable
    - `site_id` string, nullable
    - `site_name` string, nullable
    - `site_type_code` string, nullable
    - `latitude` number, nullable
    - `longitude` number, nullable
    - `altitude_ft` number, nullable
    - `huc` string, nullable
    - `drain_area_sqmi` number, nullable
    - `api_version` string, required
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

[API](https://skmtc.net/sugra/apis/sugra-api.md) · [All operations](https://skmtc.net/sugra/apis/sugra-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/sugra/sugra-api/revisions/4e2740743eb4/schema)