Catalogue › Constraints, Regulation & Consenting
Environment Agency Hydrology Data API
Environment Agency
- Licence
- Open Government Licence v3.0
- Cost
- Free
- Account needed
- No
- Harvestable
- Automated
What it contains
Groundwater level, river level, river flow and rainfall time series from ~8,000 EA monitoring stations, as a linked-data REST API. Groundwater level series are the primary open evidence for open-loop GSHP feasibility.
When you need it
Useful at these project stages, from the working group's stage matrix:
- Matched on
- Constraints, regulation and consenting data (not a matrix item)
- Assigned by
- Matched to data items the matrix names
Coverage and detail
- Geographic
- England
- Nations
- England
- Resolution
- Station point; 15-minute to daily
- Formats
- JSON, CSV, RDF
- Update cadence
- Near-real-time to daily
Access and machine route
- Licence as stated
- Open Government Licence v3.0
- Assertion source
- as published by Environment Agency
- Protocol
- REST / linked data (JSON-LD, CSV), no key required
- Endpoint
- https://environment.data.gov.uk/hydrology/id/stations.json
- Harvest note
- yes-automated note recorded in the machine_endpoint field: /hydrology/id/measures /hydrology/data/readings.csv?measure=...
Caveats
England only. Wales = NRW, Scotland = SEPA, NI = DAERA Rivers Agency - all with different (and worse) access.
Classification
- Category
- Constraints, Regulation & Consenting
- Sub-category
- 4.2 Groundwater & water environment protection
- Assigned by
- Stated by the source
- Depth domain
- 0–200 m
- Technology
- Closed-loop GSHP, Open-loop / ATES
- Data form
- Time series, Tabular, Point observation
- Evidence confidence
- Not yet assessed. Only a person can set this.
How current this entry is
- Last updated here
- 2026-09-22
- Last checked against the holder
- 2026-09-07
- Checked by a person
- Not yet. Nobody has read this entry.
- Catalogue id
- environment-agency-hydrology-data-api
Open at Environment Agency
Openly licensed. No account needed.
Resolved
A server answered on 2026-09-08 and returned the expected page.
Checked by automated request, not in a browser. A site can answer a script and still fail for a reader, so treat this as a weak signal.
Machine endpoint (JSON, CSV, RDF)
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Environment Agency. Environment Agency Hydrology Data API. Accessed via UK Geothermal Data Catalogue, https://catalogue.geothermaluk.org/id/environment-agency-hydrology-data-api/. Record environment-agency-hydrology-data-api.