Environment
Groundwater levels (OGC field-measurements)
Discrete field-measured groundwater levels. OGC-only: legacy /nwis/gwlevels/ was frozen 2025-11-01 and redirects to the decommission notice as of 2026-02-01. Sugra sources this from the OGC field-measurements collection - the official replacement.
get/api/v1/environment/usgs-water/gwlevels
Query parameters
sitestring required
USGS site number (groundwater wells are 15-digit).
USGS site number (groundwater wells are 15-digit).
start_datestring
Start date YYYY-MM-DD.
Start date YYYY-MM-DD.
end_datestring
End date YYYY-MM-DD.
End date YYYY-MM-DD.
limitinteger
Maximum measurements to return.
Maximum measurements to return.
Response
Discrete field-measured groundwater-level observations.
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",
"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"
]
}
}