Rockland Broad Water Body
Moderate ecological status
Get Rockland Broad data
Attributes
- Water Body IDGB30536730
- Water Body TypeLake
- Hydromorphological designationheavily modified
- NGRTG3323105165
- Mean depth1 m
- Catchment area1608.75 ha
- Surface area0.26 km2
- Altitude2 m
- Natural England Revised WB Protected Area targetshttp://goo.gl/S7mVYC
- Surveillance Water BodyNo
- Surface area25.955 ha
Classifications
| Classification Item | 2019 |
|---|---|
| Ecological | Moderate |
| Biological quality elements | Good |
| Macrophytes and Phytobenthos Combined | Good |
| Macrophytes Sub Element | Good |
| Phytoplankton | Good |
| Physico-chemical quality elements | Moderate |
| Salinity | High |
| Total Nitrogen | Bad |
| Total Phosphorus | Poor |
| Hydromorphological Supporting Elements | Supports good |
| Hydrological Regime | Supports good |
| Supporting elements (Surface Water) | Moderate |
| Expert Judgement | Moderate |
| Mitigation Measures Assessment | Moderate or less |
| Chemical | Fail |
| Priority hazardous substances | Fail |
| 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 |
| Fluoranthene | 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 | Physical modification | Other (not in list, must add details in comments) | Navigation | Mitigation Measures Assessment | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Physical modification | Other (not in list, must add details in comments) | Recreation | Mitigation Measures Assessment | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Total Phosphorus | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phytoplankton | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Total Phosphorus | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Total Phosphorus | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phytoplankton | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phytoplankton | Details |
| RNAG | Diffuse source | Other (not in list, must add details in comments) | Agriculture and rural land management | Total Nitrogen | 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 | 3 | 0 |
| Industry | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mining and quarrying | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Navigation | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Urban and transport | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Water Industry | 0 | 1 | 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 | 1 | 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 | 2 | 1 | 0 | 0 | 0 | 3 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
| Biological quality elements | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
| Macrophytes and Phytobenthos Combined | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
| Phytoplankton | Good | 2015 | |
| Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
| Salinity | Good | 2015 | |
| Total Nitrogen | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Total Phosphorus | Poor | 2021 | Technically infeasible: No known technical solution is available |
| Hydromorphological Supporting Elements | Supports good | 2015 | |
| Hydrological Regime | Supports good | 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 |
| Norwich Crag and Gravels | G79 | Nitrates Directive | |
| Rockland Broad Eutrophic lake NVZ | EL147 | 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.