Information - This Indicator is an experimental statistic and has been published in order to facilitate user involvement in its development – information on how the data have been obtained and how the indicator has been prepared is available via the link(s) in the 'Readiness and links to data' section. We would welcome any feedback, particularly on the usefulness and value of this statistic, via 25YEPindicators@defra.gov.uk.
B3: State of the water environment
Short Description
This indicator takes a broad overview of the condition of the water environment; it relates to freshwater bodies, wetlands, groundwaters, estuaries and coastal waters. The indicator comprises several metrics including percentage of water tests meeting good (or better) status for biology and chemistry, percentage of water bodies achieving good ecological status, and compliance of waters specially protected for specific uses such as drinking water abstraction and nature conservation. ‘Status’ refers to quality as measured under the Water Environment (Water Framework Directive) (England and Wales) Regulations 2017 (the WFD Regulations). Some of these data relating to protected sites are also included in indicator ‘D2 Extent and condition of protected sites – land, water and sea’. All the water theme indicators are linked, but two indicators that are important to consider as part of the wider state of the water environment are ‘B4 Condition of bathing waters’ and ‘B6 Natural functions of water and wetland ecosystems’.
Readiness and links to data
This indicator is not available for reporting in 2023 in a finalised form. A revised interim indicator is presented here as an experimental statistic that was first presented in 2021. It includes metrics from the WFD Regulations status tests for:
• Surface water bodies (rivers, lakes, estuaries and coastal waters)
• Groundwaters
• Waters protected for a specific reason such as drinking waters and nature sites.
For each water type, we include a representative element that is tested to assess the condition of a water body, reflecting water quality and/or hydromorphology (the physical character and water content in water bodies). There are many more elements assessed, and tests undertaken; the data represent a snapshot of the complete WFD Regulations dataset. There are no new WFD regulations assessments included in the 2023 report. We have included new data for water quantity status of groundwaters, surface water drinking water protected areas and sites protected for nature.
Supporting detail for each of the water types and a more detailed dashboard of data are available on the updated B3 Evidence Pages. These data have been published as an experimental statistic to facilitate user involvement in the development of this indicator. We would therefore welcome any feedback on these statistics, particularly on their usefulness and value, via 25YEPindicators@defra.gov.uk.
Further work is required to develop the indicator to show change over time. We will continue to work with partners to develop our approach for future reporting. Data and evidence will begin to come from different sources as Environment Agency monitoring networks are updated as part of the Natural Capital Ecosystem Assessment development. Piloting and rollout of new networks has begun. Data will start to feed into indicator reporting as soon as it is ready. Existing source data are currently published (WFD element status , protected area data, State of the environment and the water quality report). Water body level status results are available on the Catchment Data Explorer.
Indicator components
Figure B3a: Status of surface waters in England, 2019
Table B3a: Status of surface waters in England, 2019
| Water body | Biology, at good status | Biology, not at good status | Ecological status, at good status | Ecological status, other |
|---|---|---|---|---|
| All surface water bodies | - | - | 16.00 | 84.00 |
| Coastal waters: Saltmarsh | 50.00 | 50.00 | - | - |
| Estuaries: Saltmarsh | 36.00 | 64.00 | - | - |
| Lakes: Phytoplankton | 52.00 | 48.00 | - | - |
| Rivers: Invertebrates | 76.00 | 24.00 | - | - |
| Rivers: Plants & algae | 45.00 | 55.00 | - | - |
Trend description for B3a
In total, 16% of surface water bodies met all the relevant criteria for good ecological status of the WFD Regulations in 2019. For rivers, invertebrates and the combined test for macrophytes and phytobenthos (plants and algae) are reported to indicate biological quality, where 76% and 45% of tests carried out passed for the water bodies assessed, respectively. For lakes, the representative biological element shown is phytoplankton with 52% of water bodies assessed passing. For estuaries and coasts saltmarsh is used to reflect the extent and quality of habitat; results show 36% and 50% of water bodies monitored pass the test, respectively
Assessment of change
No assessment of change was undertaken for this indicator as a suitable time series is not yet available in the Outcome Indicator Framework.
Figure B3b: Status of groundwaters in England, 2019 or 2022
Table B3b: Status of groundwaters in England, 2019 or 2022
| Variable | At good status | Not at good status |
|---|---|---|
| Water quality (2019) | 45 | 55 |
| Water quantity (2022) | 73 | 27 |
Trend description for B3b
In 2022, 73% of groundwaters passed water quantity tests. In 2019 45% passed chemical (water quality) tests.
Assessment of change
No assessment of change was undertaken for this indicator as a suitable time series is not yet available in the Outcome Indicator Framework.
Figure B3c: Status of waters specially protected for specific uses in England, 2019 or 2022
Table B3c: Status of waters specially protected for specific uses in England, 2019 or 2022
| Site | Condition of SSSI units underpinning European protected water and wetland sites, favourable | Condition of SSSI units underpinning European protected water and wetland sites, other | Condition of SSSI units underpinning European protected water and wetland sites, unfavourable recovering | Drinking water protected areas, at risk | Drinking water protected areas, not at risk |
|---|---|---|---|---|---|
| Groundwater (2019) | - | - | - | 47.00 | 53.00 |
| Protected wildlife sites (2022) | 45.10 | 11.80 | 43.10 | - | - |
| Surface water (2022) | - | - | - | 53.00 | 47.00 |
Trend description for B3c
In 2019 (groundwater) and 2022 (surface water), 53% of groundwater and 47% of surface water areas (sites) protected for drinking water abstraction were assessed as not being at risk of deterioration. For protected nature sites, 45% were in favourable condition and 43% were in an unfavourable but recovering condition in 2022.
Assessment of change
No assessment of change was undertaken for this indicator as a suitable time series is not yet available in the Outcome Indicator Framework.