Lower Mersey Basin and North Merseyside Permo-Triassic Sandstone Aquifers Water Body
Poor overall status
Get Lower Mersey Basin and North Merseyside Permo-Triassic Sandstone Aquifers data
Attributes
- Water Body IDGB41201G101700
- Water Body TypeGroundwater Body
- Hydromorphological designationnot applicable
- NGRSJ3348491107
- Surface area627.529 km2
- Surveillance Water BodyNo
- Groundwater area62752.864 ha
Classifications
| Classification Item | 2019 |
|---|---|
| Overall Water Body | Poor |
| Quantitative | Poor |
| Quantitative Status element | Poor |
| Quantitative Dependent Surface Water Body Status | Good |
| Quantitative GWDTEs test | Good |
| Quantitative Saline Intrusion | Poor |
| Quantitative Water Balance | Good |
| Chemical (GW) | Poor |
| Chemical Status element | Poor |
| Chemical Dependent Surface Water Body Status | Poor |
| Chemical Drinking Water Protected Area | Poor |
| Chemical GWDTEs test | Good |
| Chemical Saline Intrusion | Poor |
| General Chemical Test | Poor |
| Supporting elements (Groundwater) | |
| Prevent and Limit Objective | Active |
| Trend Assessment | Upward 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 | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Chemical Dependent Surface Water Body Status | Details |
| RNAG | Diffuse source | Poor pesticide management | Agriculture and rural land management | Chemical Drinking Water Protected Area | Details |
| RNAG | Diffuse source | Unknown (pending investigation) | Other | Chemical Drinking Water Protected Area | Details |
| RNAG | Natural | Saline or other intrusion | No sector responsible | Quantitative Saline Intrusion | Details |
| RNAG | Diffuse source | Other (not in list, must add details in comments) | Water Industry | Chemical Drinking Water Protected Area | Details |
| RNAG | Point source | Private Sewage Treatment | No sector responsible | Chemical Drinking Water Protected Area | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Chemical Drinking Water Protected Area | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Trend Assessment | Details |
| RNAG | Other pressures | Saline or other intrusion | No sector responsible | Chemical Saline Intrusion | 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 | 1 | 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 | 0 | 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 | 0 | 0 | 0 | 1 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Overall Water Body | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Quantitative | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Quantitative Status element | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Quantitative Dependent Surface Water Body Status | Good | 2015 | |
| Quantitative GWDTEs test | Good | 2015 | |
| Quantitative Saline Intrusion | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| 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 | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Chemical Drinking Water Protected Area | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Chemical GWDTEs test | Good | 2015 | |
| Chemical Saline Intrusion | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| General Chemical Test | Good | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| River Weaver (Dane to Frodsham) NVZ | S636 | Nitrates Directive | |
| Whittle Brook NVZ | S637 | Nitrates Directive | |
| Sankey Brook (Black Bk to Mersey) NVZ | S639 | Nitrates Directive | |
| River Glaze NVZ | S641 | Nitrates Directive | |
| River Douglas NVZ | S644 | Nitrates Directive | |
| Pennington Flash Eutrophic lake NVZ | EL138 | Nitrates Directive | |
| Dittton Brook (Halewood to Mersey Estuary) NVZ | S640 | Nitrates Directive | |
| ALT NVZ | S642 | Nitrates Directive | |
| Ribble & Alt Estuaries | UK9005103 | Special Protection Area | Natural England |
| Sefton Coast | UK0013076 | Special Area of Conservation | Natural England |
| Ribble & Alt Estuaries | UK11057 | Ramsar Site | Natural England |
| BLACK SLUICE AND THREE POOLS WATERWAY NVZ | S711 | Nitrates Directive | |
| Mersey Estuary | UK9005131 | Special Protection Area | Natural England |
| Manchester Mosses | UK0030200 | Special Area of Conservation | Natural England |
| Winwick | G48 | Nitrates Directive | |
| Houghton Green, Winwick | GWSGZ0266 | Safeguard Zone | |
| Mersey Estuary | UK11041 | Ramsar Site | Natural England |
| Liverpool Bay | UK9020294 | Special Protection Area | Natural England |
| Mersey Narrows & North Wirral Foreshore | UK11042 | Ramsar Site | Natural England |
| Mersey Narrows & North Wirral Foreshore | UK9020287 | Special Protection Area | Natural England |
| Lower Mersey Basin and North Merseyside Permo-Triassic Sandstone Aquifers | UKGB41201G101700 | 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.