Filby Broad Water Body
Poor ecological status
Get Filby Broad data
Attributes
- Water Body IDGB30547012
- Water Body TypeLake
- Hydromorphological designationheavily modified
- NGRTG4555113446
- Surface area40.061 ha
- Surface area0.401 km2
- Natural England Revised WB Protected Area targetshttp://goo.gl/S7mVYC
- Mean depth2.5 m
- Altitude0 m
- Surveillance Water BodyNo
- Catchment area3495.25 ha
Classifications
Classification Item | 2019 | 2022 |
---|---|---|
Ecological | Poor | Poor |
Biological quality elements | Poor | Poor |
Macrophytes and Phytobenthos Combined | Poor | Poor |
Macrophytes Sub Element | Poor | Poor |
Phytoplankton | Moderate | Moderate |
Physico-chemical quality elements | Moderate | Good |
Ammonia (Phys-Chem) | High | High |
Salinity | High | High |
Total Nitrogen | Moderate | Good |
Total Phosphorus | Good | Good |
Supporting elements (Surface Water) | Moderate | Moderate |
Expert Judgement | Moderate | Moderate |
Mitigation Measures Assessment | Moderate or less | Moderate or less |
Chemical | Fail | Does not require assessment |
Priority hazardous substances | Fail | Does not require assessment |
Benzo(a)pyrene | Good | |
Dioxins and dioxin-like compounds | Good | |
Heptachlor and cis-Heptachlor epoxide | Good | |
Hexabromocyclododecane (HBCDD) | Good | |
Hexachlorobenzene | Good | |
Hexachlorobutadiene | Good | |
Mercury and Its Compounds | Good | |
Perfluorooctane sulphonate (PFOS) | Good | |
Polybrominated diphenyl ethers (PBDE) | Fail | |
Priority substances | Good | Does not require assessment |
Fluoranthene | Good | |
Other Pollutants | Does not require assessment | Does not require assessment |
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 | Physical modification | Other (not in list, must add details in comments) | Sector under investigation | Mitigation Measures Assessment | Details |
RNAG | Physical modification | Other (not in list, must add details in comments) | Sector under investigation | Mitigation Measures Assessment | Details |
RNAG | Point source | Private Sewage Treatment | Domestic General Public | Total Phosphorus | Details |
RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Total Phosphorus | Details |
RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phytoplankton | Details |
RNAG | Point source | Private Sewage Treatment | Domestic General Public | Phytoplankton | Details |
RNAG | Diffuse source | Other (not in list, must add details in comments) | Agriculture and rural land management | Total Nitrogen | Details |
RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phytoplankton | Details |
RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Private Sewage Treatment | Domestic General Public | Macrophytes and Phytobenthos Combined | Details |
RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Total Phosphorus | 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 | 4 | 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 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 2 | 0 | 0 | 0 | 0 | 4 | 0 |
Objectives
Classification Item | Status | Year | Reasons |
---|---|---|---|
Ecological | Poor | 2015 | Disproportionately expensive: Disproportionate burdens; Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use |
Biological quality elements | Poor | 2015 | Disproportionately expensive: Disproportionate burdens; Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use |
Macrophytes and Phytobenthos Combined | Poor | 2015 | Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use |
Phytoplankton | Good | 2027 | Disproportionately expensive: Disproportionate burdens |
Physico-chemical quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Ammonia (Phys-Chem) | Good | 2015 | |
Salinity | Good | 2015 | |
Total Nitrogen | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Total Phosphorus | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Hydromorphological Supporting Elements | Not assessed | 2015 | |
Supporting elements (Surface Water) | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Expert Judgement | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Mitigation Measures Assessment | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Specific pollutants | Not assessed | 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 | |
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 | 2015 | |
Perfluorooctane sulphonate (PFOS) | Good | 2015 | |
Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
Priority substances | Good | 2015 | |
Fluoranthene | Good | 2015 | |
Other Pollutants | Does not require assessment | 2015 |
Protected areas
PA Name | Id | Directive | More information |
---|---|---|---|
The Broads | UK0013577 | Special Area of Conservation | Natural England |
Broadland | UK9009253 | Special Protection Area | Natural England |
Broadland | UK11010 | Ramsar Site | Natural England |
Trinity Broads | EL150 | Nitrates Directive | |
Norwich Crag and Gravels | G79 | 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.