Deben (Brandeston Bridge - Melton) Water Body
Moderate ecological status
Get Deben (Brandeston Bridge - Melton) data
Attributes
- Water Body IDGB105035046310
- Water Body TypeRiver
- Hydromorphological designationheavily modified
- NGRTM2957156815
- Catchment area58.503 km2
- Surveillance Water BodyNo
- Length24.884 km
- Catchment area5850.25 ha
Classifications
Classification Item | 2019 | 2022 |
---|---|---|
Ecological | Moderate | Moderate |
Biological quality elements | Good | Good |
Invertebrates | Good | Good |
Macrophytes and Phytobenthos Combined | Good | Good |
Macrophytes Sub Element | Good | Good |
Physico-chemical quality elements | Moderate | Moderate |
Acid Neutralising Capacity | High | High |
Ammonia (Phys-Chem) | High | High |
Biochemical Oxygen Demand (BOD) | High | |
Dissolved oxygen | Bad | Bad |
Phosphate | Moderate | Moderate |
Temperature | High | High |
pH | High | High |
Hydromorphological Supporting Elements | Supports good | Supports good |
Hydrological Regime | Does not support good | Does not support good |
Supporting elements (Surface Water) | Moderate | Moderate |
Mitigation Measures Assessment | Moderate or less | Moderate or less |
Specific pollutants | High | High |
Copper | High | High |
Dimethoate | High | High |
Iron | High | High |
Mecoprop | High | High |
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 | Fail | |
Perfluorooctane sulphonate (PFOS) | Fail | |
Polybrominated diphenyl ethers (PBDE) | Fail | |
Priority substances | Good | Does not require assessment |
Cypermethrin (Priority) | Good | |
Fluoranthene | Good | |
Other Pollutants | Does not require assessment | 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) | Local and Central Government | Mitigation Measures Assessment | Details |
RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phosphate | Details |
RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phosphate | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
RNAG | Diffuse source | Riparian/in-river activities (inc bankside erosion) | Agriculture and rural land management | Phosphate | Details |
RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Perfluorooctane sulphonate (PFOS) | Details |
RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | 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 | 1 | 0 | 0 | 0 | 0 | 0 |
Local & central government | 1 | 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 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
Objectives
Classification Item | Status | Year | Reasons |
---|---|---|---|
Ecological | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens; Technically infeasible: Practical technical constraints prevent implementation of the measure by an earlier deadline |
Biological quality elements | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Invertebrates | Good | 2015 | |
Macrophytes and Phytobenthos Combined | Not assessed | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Physico-chemical quality elements | Good | 2027 | Technically infeasible: Practical technical constraints prevent implementation of the measure by an earlier deadline |
Acid Neutralising Capacity | Good | 2015 | |
Ammonia (Phys-Chem) | Good | 2015 | |
Dissolved oxygen | Good | 2015 | |
Phosphate | Good | 2027 | Technically infeasible: Practical technical constraints prevent implementation of the measure by an earlier deadline |
Temperature | Good | 2015 | |
pH | Good | 2015 | |
Hydromorphological Supporting Elements | Supports good | 2015 | |
Hydrological Regime | Supports good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Supporting elements (Surface Water) | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Mitigation Measures Assessment | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Specific pollutants | High | 2015 | |
Copper | High | 2015 | |
Dimethoate | High | 2015 | |
Iron | High | 2015 | |
Mecoprop | High | 2015 | |
Chemical | Good | 2063 | Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
Priority hazardous substances | Good | 2063 | Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
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 | 2040 | Natural conditions: Chemical status recovery time |
Perfluorooctane sulphonate (PFOS) | Good | 2039 | Technically infeasible: No known technical solution is available |
Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
Priority substances | Good | 2015 | |
Cypermethrin (Priority) | Good | 2015 | |
Fluoranthene | Good | 2015 | |
Other Pollutants | Does not require assessment | 2015 |
Protected areas
PA Name | Id | Directive | More information |
---|---|---|---|
Sandlings and Chelmsford | G78 | Nitrates Directive | |
Deben Estuary | UK9009261 | Special Protection Area | Natural England |
Deben Estuary | UK11017 | Ramsar Site | Natural England |
Deben NVZ | S419 | 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.