Derwent Malton Corallian Limestone Water Body
Poor overall status
Get Derwent Malton Corallian Limestone data
Attributes
- Water Body IDGB40401G702500
- Water Body TypeGroundwater Body
- Hydromorphological designationnot applicable
- NGRSE6284876055
- Groundwater area3480.535 ha
- Surface area34.805 km2
- Surveillance Water BodyNo
Classifications
| Classification Item | 2019 |
|---|---|
| Overall Water Body | Poor |
| Quantitative | Good |
| Quantitative Status element | Good |
| Quantitative Dependent Surface Water Body Status | Good |
| Quantitative GWDTEs test | Good |
| Quantitative Saline Intrusion | Good |
| Quantitative Water Balance | Good |
| Chemical (GW) | Poor |
| Chemical Status element | Poor |
| Chemical Dependent Surface Water Body Status | Good |
| Chemical Drinking Water Protected Area | Good |
| Chemical GWDTEs test | Good |
| Chemical Saline Intrusion | Good |
| General Chemical Test | Poor |
| Supporting elements (Groundwater) | |
| Prevent and Limit Objective | Active |
| Trend Assessment | No trend |
Investigations into classification status
No data to show
Reasons for not achieving good (RNAG) and reasons for deterioration (RFD)
All reasons (RFDs and RNAGs) attributed to the classification elements in this water body.
| Reason Type | SWMI | Activity | Category | Classification Element | More information |
|---|---|---|---|---|---|
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | General Chemical Test | Details |
| RNAG | Point source | Private Sewage Treatment | Domestic General Public | General Chemical Test | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | General Chemical Test | Details |
Reasons for not achieving good status by business sector
The issues preventing waters reaching good status and the sectors identified as contributing to them. The numbers in the table are individual counts of the reasons for not achieving good status with a confidence status of 'confirmed' and 'probable', where the latest classification is less than good status. There may be more than one reason in a single water body. Note, table does not include reasons for deterioration.
| Significant water management issue | Physical modifications | Pollution from waste water | Pollution from towns, cities and transport | Changes to the natural flow and level of water | Invasive non-native species | Pollution from rural areas | Pollution from abandoned mines |
|---|---|---|---|---|---|---|---|
| Agriculture and rural land management | 0 | 0 | 0 | 0 | 0 | 2 | 0 |
| Industry | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mining and quarrying | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Navigation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Urban and transport | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Water Industry | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Local & central government | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Domestic general public | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Recreation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Waste treatment and disposal | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| No sector responsible | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sector under investigation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 1 | 0 | 0 | 2 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Overall Water Body | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Quantitative | Good | 2015 | |
| Quantitative Status element | Good | 2015 | |
| Quantitative Dependent Surface Water Body Status | Good | 2015 | |
| Quantitative GWDTEs test | Good | 2015 | |
| Quantitative Saline Intrusion | Good | 2015 | |
| Quantitative Water Balance | Good | 2015 | |
| Chemical (GW) | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Chemical Status element | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Chemical Dependent Surface Water Body Status | Good | 2015 | |
| Chemical Drinking Water Protected Area | Good | 2015 | |
| Chemical GWDTEs test | Good | 2015 | |
| Chemical Saline Intrusion | Good | 2015 | |
| General Chemical Test | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| River Derwent | UK0030253 | Special Area of Conservation | Natural England |
| Malton Corallian | G105 | Nitrates Directive | |
| Derwent Malton Corallian Limestone | UKGB40401G702500 | Drinking Water Protected Area |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.