Abberton Reservoir Water Body
Poor ecological status
Get Abberton Reservoir data
Attributes
- Water Body IDGB30540418
- Water Body TypeLake
- Hydromorphological designationartificial
- NGRTL9697917544
- Surveillance Water BodyYes
- Surface area474.189 ha
- Altitude16 m
- Mean depth5.249 m
- Surface area4.742 km2
- Catchment area3421.25 ha
Classifications
| Classification Item | 2019 |
|---|---|
| Ecological | Poor |
| Biological quality elements | Poor |
| Chironomids (CPET) | High |
| Phytoplankton | Poor |
| Physico-chemical quality elements | Moderate |
| Acid Neutralising Capacity | High |
| Ammonia (Phys-Chem) | High |
| Salinity | High |
| Total Nitrogen | Poor |
| Total Phosphorus | Moderate |
| Supporting elements (Surface Water) | Good |
| Expert Judgement | Good |
| Mitigation Measures Assessment | Good |
| 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 | Fail |
| Perfluorooctane sulphonate (PFOS) | Fail |
| 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 | Diffuse source | Poor nutrient management | Agriculture and rural land management | Total Phosphorus | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Total Nitrogen | Details |
| RNAG | Diffuse source | Other (not in list, must add details in comments) | Agriculture and rural land management | Total Nitrogen | 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 | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Physical modification | Reservoir / Impoundment - non flow related | Water Industry | Phytoplankton | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RNAG | Diffuse source | Contaminated water body bed sediments | Urban and transport | Total Phosphorus | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | 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 | 2 | 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 | 1 | 0 | 0 | 0 | 0 |
| Water Industry | 1 | 2 | 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 | 1 | 2 | 1 | 0 | 0 | 2 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Biological quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Chironomids (CPET) | Good | 2015 | |
| Phytoplankton | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Physico-chemical quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Acid Neutralising Capacity | Good | 2015 | |
| Ammonia (Phys-Chem) | Good | 2015 | |
| Salinity | Good | 2015 | |
| Total Nitrogen | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Total Phosphorus | Good | 2027 | Disproportionately expensive: Disproportionate burdens |
| Hydromorphological Supporting Elements | Not assessed | 2015 | |
| Supporting elements (Surface Water) | Good | 2015 | |
| Expert Judgement | Good | 2015 | |
| Mitigation Measures Assessment | Good | 2015 | |
| Specific pollutants | High | 2015 | |
| Copper | 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 | |
| Fluoranthene | Good | 2015 | |
| Other Pollutants | Does not require assessment | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| Sandlings and Chelmsford | G78 | Nitrates Directive | |
| Stour & Abberton (SWGSZ1023) | SWSGZ1023 | Safeguard Zone | |
| Stour & Abberton (SWSGZ1200) | SWSGZ1200 | Safeguard Zone | |
| Abberton Reservoir | UKGB30540418 | Drinking Water Protected Area | |
| Abberton Reservoir | UK9009141 | Special Protection Area | Natural England |
| Layer Brook NVZ | S431 | Nitrates Directive | |
| Abberton Reservoir | UK11001 | Ramsar Site | Natural England |
| Abberton Reservoir | UKENLK60 | Urban Waste Water Treatment 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.