Preston Bk - source to conf R Leadon Water Body
Poor ecological status
Get Preston Bk - source to conf R Leadon data
Attributes
- Water Body IDGB109054039590
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRSO6827935300
- Catchment area46.721 km2
- Catchment area4672.071 ha
- Length20.38 km
- Surveillance Water BodyNo
Classifications
| Classification Item | 2019 |
|---|---|
| Ecological | Poor |
| Biological quality elements | Poor |
| Invertebrates | Good |
| Macrophytes and Phytobenthos Combined | Poor |
| Macrophytes Sub Element | Poor |
| Physico-chemical quality elements | Moderate |
| Acid Neutralising Capacity | High |
| Ammonia (Phys-Chem) | High |
| Dissolved oxygen | Moderate |
| Phosphate | Poor |
| Temperature | High |
| pH | High |
| Hydromorphological Supporting Elements | Supports good |
| Hydrological Regime | High |
| Morphology | Supports good |
| Specific pollutants | High |
| Copper | High |
| Iron | High |
| Manganese | High |
| Zinc | High |
| Chemical | Fail |
| Priority hazardous substances | Fail |
| Benzo(a)pyrene | Good |
| Benzo(b)fluoranthene | Good |
| Benzo(g-h-i)perylene | Good |
| Benzo(k)fluoranthene | Good |
| Cadmium and Its Compounds | Good |
| Dioxins and dioxin-like compounds | Good |
| Heptachlor and cis-Heptachlor epoxide | Good |
| Hexabromocyclododecane (HBCDD) | Good |
| Hexachlorobenzene | Good |
| Hexachlorobutadiene | Good |
| Mercury and Its Compounds | Fail |
| Perfluorooctane sulphonate (PFOS) | Good |
| Polybrominated diphenyl ethers (PBDE) | Fail |
| Priority substances | Good |
| Cypermethrin (Priority) | Good |
| Fluoranthene | Good |
| Lead and Its Compounds | Good |
| Nickel and Its Compounds | Good |
| Other Pollutants | Does not require assessment |
Investigations into classification status
| Classification Element | Cycle | Year | Status | Outcome |
|---|---|---|---|---|
| Dissolved oxygen | 2 | 2016 | Moderate |
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 Livestock Management | Agriculture and rural land management | Dissolved oxygen | Details |
| RFD | Flow | Surface water abstraction | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | Point source | Trade/Industry discharge | Industry | Dissolved oxygen | Details |
| RNAG | Point source | Trade/Industry discharge | Industry | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Point source | Sewage discharge (continuous) | Industry | Macrophytes and Phytobenthos Combined | Details |
| RFD | Point source | Sewage discharge (continuous) | Water Industry | Dissolved oxygen | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RFD | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
| RFD | Point source | Private Sewage Treatment | Domestic General Public | Dissolved oxygen | Details |
| RNAG | Flow | Surface water abstraction | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | Point source | Private Sewage Treatment | Domestic General Public | Dissolved oxygen | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phosphate | Details |
| RFD | Point source | Trade/Industry discharge | Industry | Dissolved oxygen | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Point source | Trade/Industry discharge | Industry | Phosphate | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
| RFD | Diffuse source | Poor nutrient management | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Dissolved oxygen | Details |
| RFD | Diffuse source | Poor nutrient management | Agriculture and rural land management | Dissolved oxygen | 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 | 6 | 0 |
| Industry | 0 | 1 | 3 | 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 | 2 | 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 | 3 | 4 | 0 | 0 | 6 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Biological quality elements | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Invertebrates | Good | 2015 | |
| Macrophytes and Phytobenthos Combined | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Acid Neutralising Capacity | Good | 2015 | |
| Ammonia (Phys-Chem) | Good | 2015 | |
| Dissolved oxygen | Good | 2015 | |
| Phosphate | Moderate | 2027 - Low confidence | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Temperature | Good | 2015 | |
| pH | Good | 2015 | |
| Hydromorphological Supporting Elements | Supports good | 2015 | |
| Hydrological Regime | Supports good | 2015 | |
| Supporting elements (Surface Water) | Not assessed | 2015 | |
| Specific pollutants | High | 2015 | |
| Copper | High | 2015 | |
| Iron | High | 2015 | |
| Manganese | High | 2015 | |
| Zinc | High | 2015 | |
| Chemical | Good | 2063 | Natural conditions: Chemical status recovery time |
| Priority hazardous substances | Good | 2063 | Natural conditions: Chemical status recovery time |
| Benzo(a)pyrene | Good | 2015 | |
| Benzo(b)fluoranthene | Good | 2015 | |
| Benzo(g-h-i)perylene | Good | 2015 | |
| Benzo(k)fluoranthene | Good | 2015 | |
| Cadmium and Its Compounds | Good | 2015 | |
| Dioxins and dioxin-like compounds | Good | 2015 | |
| Heptachlor and cis-Heptachlor epoxide | Good | 2015 | |
| Hexabromocyclododecane (HBCDD) | Good | 2015 | |
| Hexachlorobenzene | Good | 2015 | |
| Hexachlorobutadiene | Good | 2015 | |
| Mercury and Its Compounds | Good | 2040 | Natural conditions: Chemical status recovery time |
| Perfluorooctane sulphonate (PFOS) | Good | 2015 | |
| Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
| Priority substances | Good | 2015 | |
| Cypermethrin (Priority) | Good | 2015 | |
| Fluoranthene | Good | 2015 | |
| Lead and Its Compounds | Good | 2015 | |
| Nickel and Its Compounds | Good | 2015 | |
| Other Pollutants | Does not require assessment | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| R Leadon - Glynch Bk to conf R Severn (W Channel) NVZ | S578 | Nitrates Directive |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.