Bisterne Stream Water Body
Moderate ecological status
Get Bisterne Stream data
Attributes
- Water Body IDGB108043011012
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRSU1566701542
- Catchment area17.839 km2
- Surveillance Water BodyNo
- Length6.322 km
- Catchment area1783.888 ha
Classifications
Classification Item | 2019 |
---|---|
Ecological | Moderate |
Biological quality elements | Moderate |
Invertebrates | Moderate |
Physico-chemical quality elements | Moderate |
Ammonia (Phys-Chem) | High |
Dissolved oxygen | Moderate |
Phosphate | Moderate |
Temperature | High |
pH | High |
Hydromorphological Supporting Elements | Supports good |
Hydrological Regime | High |
Specific pollutants | High |
Copper | High |
Zinc | High |
Chemical | Fail |
Priority hazardous substances | Fail |
Benzo(a)pyrene | 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
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 | Suspect data | Not applicable | No sector responsible | Phosphate | Details |
RNAG | Natural | Drought | No sector responsible | Dissolved oxygen | Details |
RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
RNAG | Flow | Low Flow (not drought) | No sector responsible | Invertebrates | Details |
RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | 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 | 0 | 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 | 0 | 0 |
Objectives
Classification Item | Status | Year | Reasons |
---|---|---|---|
Ecological | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Disproportionately expensive: Unfavourable balance of costs and benefits |
Biological quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Invertebrates | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Disproportionately expensive: Unfavourable balance of costs and benefits |
Ammonia (Phys-Chem) | Good | 2015 | |
Dissolved oxygen | Moderate | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
Phosphate | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
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 | |
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 | |
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 |
---|---|---|---|
River Avon | UK0013016 | Special Area of Conservation | Natural England |
Avon Valley | UK9011091 | Special Protection Area | Natural England |
Avon Valley | UK11005 | Ramsar Site | Natural England |
The New Forest | UK0012557 | Special Area of Conservation | Natural England |
New Forest | UK11047 | Ramsar Site | Natural England |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.