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dataset · England

Catchment Data Explorer: Waterbody Reasons for Not Achieving Good Status (RNAGS) & Reasons for Deterioration (RFD)

This data can be accessed from the Catchment Data Explorer: https://environment.data.gov.uk/catchment-planning. Water body reasons for not achieving good status (RNAGS) identify the pressures that are impacting the status classification of water bodies. Reasons for deterioration (RFDs) identify the pressures that have caused the status of individual quality elements to deteriorate. A level of certainty (suspected, probable or confirmed) is also assigned to each reason for not achieving good stat

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Source details

Licence: ["There are no public access constraints to this data. Use of this data is subject to the licence identified.", "There are no public access constraints to this data. Use of this data is subject to the

Evidence quality: 50.5

Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).

Metadata checked: 2026-10-14T13:20:00.000Z

What's in it

Data offered docs-verified
reasons for not achieving good status (RNAGS) · reasons for deterioration (RFD) · pressures affecting water body status classification · certainty level per reason (suspected, probable, confirmed)
Coverage llm-inferred
England
Update frequency docs-verified
quarterly
Formats docs-verified
CSV
Access docs-verified
Open access with no public access constraints; Open Government Licence

Useful for

Use cases llm-inferred
Identify the pressures preventing a water body from reaching good status when scoping a water quality or drainage consent assessment · Establish baseline WFD status context for an EIA water environment chapter · Check whether a receiving water body's status has deteriorated and which quality element is affected
Audience llm-inferred
water quality consultants · environmental consultants · hydrologists · planners

Limitations

Constraints llm-inferred
Reasons are classifications with a certainty level, not measured data · Summary does not describe the CSV field schema, so column meanings need checking against the Catchment Data Explorer · Covers WFD status assessment only and should be read alongside the river basin management plans

Evidence

Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.