Roundmoor Ditch and Boveney Ditch Water Body
Poor ecological status
Get Roundmoor Ditch and Boveney Ditch data
Attributes
- Water Body IDGB106039023540
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRSU9293478514
- Catchment area1832.079 ha
- Length8.781 km
- Catchment area18.321 km2
- Surveillance Water BodyNo
Classifications
Classification Item | 2019 | 2022 |
---|---|---|
Ecological | Poor | Poor |
Biological quality elements | Poor | Poor |
Fish | Good | Good |
Invertebrates | Moderate | Moderate |
Macrophytes and Phytobenthos Combined | Poor | Poor |
Macrophytes Sub Element | Poor | Poor |
Physico-chemical quality elements | Moderate | Moderate |
Acid Neutralising Capacity | High | High |
Ammonia (Phys-Chem) | High | Good |
Dissolved oxygen | High | Poor |
Phosphate | Moderate | Poor |
Temperature | High | High |
pH | High | High |
Hydromorphological Supporting Elements | Supports good | Supports good |
Hydrological Regime | Supports good | Supports good |
Specific pollutants | High | High |
Chlorothalonil | High | High |
Chromium (VI) | High | High |
Copper | High | High |
Iron | High | High |
Manganese | High | High |
Pendimethalin | High | High |
Permethrin | High | High |
Triclosan | High | High |
Zinc | High | High |
Chemical | Fail | Does not require assessment |
Priority hazardous substances | Fail | Does not require assessment |
Benzo(a)pyrene | Good | |
Benzo(b)fluoranthene | Good | |
Benzo(g-h-i)perylene | Good | |
Benzo(k)fluoranthene | Good | |
Cadmium and Its Compounds | Good | |
Di(2-ethylhexyl)phthalate (Priority hazardous) | Good | |
Dioxins and dioxin-like compounds | Good | |
Heptachlor and cis-Heptachlor epoxide | Good | |
Hexabromocyclododecane (HBCDD) | Good | |
Hexachlorobenzene | Good | |
Hexachlorobutadiene | Good | |
Hexachlorocyclohexane | Good | |
Mercury and Its Compounds | Good | |
Nonylphenol | Good | |
Perfluorooctane sulphonate (PFOS) | Fail | |
Polybrominated diphenyl ethers (PBDE) | Fail | |
Quinoxyfen | Good | |
Tributyltin Compounds | Good | |
Priority substances | Good | Does not require assessment |
Aclonifen | Good | |
Alachlor | Good | |
Bifenox | Good | |
Cybutryne | Good | |
Cypermethrin (Priority) | Good | |
Dichlorvos (Priority) | Good | |
Fluoranthene | Good | |
Lead and Its Compounds | Good | |
Nickel and Its Compounds | Good | |
Octylphenol | Good | |
Terbutryn | Good | |
Trichloromethane | 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 | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Invertebrates | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Invertebrates | Details |
RNAG | Point source | Sewage discharge (intermittent) | Water Industry | Invertebrates | Details |
RNAG | Physical modification | Land drainage | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Invertebrates | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Macrophytes and Phytobenthos Combined | Details |
RNAG | Physical modification | Urbanisation - urban development | Urban and transport | Invertebrates | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | 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 | 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 | 1 | 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 | 5 | 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 | 5 | 0 | 0 | 0 | 1 | 0 |
Objectives
Classification Item | Status | Year | Reasons |
---|---|---|---|
Ecological | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Ecological recovery time |
Biological quality elements | Good | 2039 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Ecological recovery time |
Fish | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Invertebrates | Good | 2039 | Natural conditions: Ecological recovery time |
Macrophytes and Phytobenthos Combined | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens |
Acid Neutralising Capacity | Good | 2015 | |
Ammonia (Phys-Chem) | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Dissolved oxygen | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Phosphate | Moderate | 2021 | 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 | |
Chlorothalonil | High | 2015 | |
Chromium (VI) | High | 2015 | |
Copper | High | 2015 | |
Iron | High | 2015 | |
Manganese | High | 2015 | |
Pendimethalin | High | 2015 | |
Permethrin | High | 2015 | |
Triclosan | High | 2015 | |
Zinc | High | 2015 | |
Chemical | Good | 2063 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
Priority hazardous substances | Good | 2063 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
Benzo (b) and (k) fluoranthene | Good | 2015 | |
Benzo (ghi) perelyene and indeno (123-cd) pyrene | Good | 2015 | |
Benzo(a)pyrene | Good | 2015 | |
Benzo(b)fluoranthene | Good | 2015 | |
Benzo(g-h-i)perylene | Good | 2015 | |
Benzo(k)fluoranthene | Good | 2015 | |
Cadmium and Its Compounds | Good | 2015 | |
Di(2-ethylhexyl)phthalate (Priority hazardous) | 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 | |
Hexachlorocyclohexane | Good | 2015 | |
Mercury and Its Compounds | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Nonylphenol | Good | 2015 | |
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 |
Quinoxyfen | Good | 2015 | |
Tributyltin Compounds | Good | 2015 | |
Priority substances | Good | 2015 | |
Aclonifen | Good | 2015 | |
Alachlor | Good | 2015 | |
Bifenox | Good | 2015 | |
Cybutryne | Good | 2015 | |
Cypermethrin (Priority) | Good | 2015 | |
Dichlorvos (Priority) | Good | 2015 | |
Fluoranthene | Good | 2015 | |
Lead and Its Compounds | Good | 2015 | |
Nickel and Its Compounds | Good | 2015 | |
Octylphenol | Good | 2015 | |
Terbutryn | Good | 2015 | |
Trichloromethane | Good | 2015 | |
Other Pollutants | Does not require assessment | 2015 |
Protected areas
PA Name | Id | Directive | More information |
---|---|---|---|
Lower Thames (Cookham Egham Teddington) | SWSGZ4016 | Safeguard Zone | |
Roundmoor Ditch and Boveney Ditch NVZ | S466 | 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.