Fleet Brook Water Body
Moderate ecological status
Get Fleet Brook data
Attributes
- Water Body IDGB106039017120
- Water Body TypeRiver
- Hydromorphological designationheavily modified
- NGRSU8150453896
- Catchment area3308.53 ha
- Length16.14 km
- Catchment area33.085 km2
- Surveillance Water BodyNo
Classifications
| Classification Item | 2019 | 2022 |
|---|---|---|
| Ecological | Moderate | Moderate |
| Biological quality elements | Poor | Poor |
| Fish | Poor | Poor |
| Invertebrates | Moderate | Moderate |
| Macrophytes and Phytobenthos Combined | ||
| Macrophytes Sub Element | Good | Good |
| Physico-chemical quality elements | Moderate | Moderate |
| Ammonia (Phys-Chem) | High | Good |
| Dissolved oxygen | Poor | Bad |
| Phosphate | Moderate | Moderate |
| Temperature | High | High |
| pH | High | High |
| Hydromorphological Supporting Elements | Supports good | Supports good |
| Hydrological Regime | Supports good | Supports good |
| Supporting elements (Surface Water) | Good | Good |
| Mitigation Measures Assessment | Good | Good |
| Specific pollutants | High | High |
| Copper | High | High |
| Iron | High | High |
| Triclosan | High | High |
| Chemical | Fail | Does not require assessment |
| Priority hazardous substances | Fail | Does not require assessment |
| Benzo(a)pyrene | 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 | |
| Mercury and Its Compounds | Good | |
| Nonylphenol | Good | |
| Perfluorooctane sulphonate (PFOS) | Good | |
| Polybrominated diphenyl ethers (PBDE) | Fail | |
| Tributyltin Compounds | Good | |
| Priority substances | Good | Does not require assessment |
| Cypermethrin (Priority) | Good | |
| Fluoranthene | Good | |
| Nickel and Its Compounds | 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 | Impoundment - u/s elevated water level | Other | Fish | Details |
| RNAG | Point source | Sewage discharge (intermittent) | Water Industry | Phosphate | Details |
| RNAG | Physical modification | Barriers - ecological discontinuity | Other | Fish | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Fish | Details |
| RNAG | Diffuse source | Transport Drainage | Urban and transport | Dissolved oxygen | Details |
| RNAG | Diffuse source | Transport Drainage | Urban and transport | Fish | Details |
| RNAG | Point source | Incidents | Domestic General Public | Dissolved oxygen | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
| RNAG | Point source | Landfill leaching | Mining and quarrying | Dissolved oxygen | Details |
| RNAG | Physical modification | Land drainage | Agriculture and rural land management | Invertebrates | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Invertebrates | Details |
| RNAG | Diffuse source | Transport Drainage | Urban and transport | Invertebrates | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Invertebrates | Details |
| RNAG | Diffuse source | Transport Drainage | Urban and transport | Phosphate | 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 | 0 | 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 | 2 | 0 | 0 | 0 | 0 |
| Water Industry | 0 | 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 | 2 | 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 | 3 | 2 | 2 | 0 | 0 | 0 | 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 | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Fish | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Invertebrates | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Macrophytes and Phytobenthos Combined | Not assessed | 2015 | Disproportionately expensive: Disproportionate burdens |
| Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
| Ammonia (Phys-Chem) | Good | 2015 | |
| Dissolved oxygen | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Phosphate | Moderate | 2015 | Technically infeasible: No known technical solution is available |
| Temperature | Good | 2015 | |
| pH | Good | 2015 | |
| Hydromorphological Supporting Elements | Supports good | 2015 | |
| Hydrological Regime | Supports good | 2015 | |
| Supporting elements (Surface Water) | Good | 2015 | |
| Mitigation Measures Assessment | Good | 2015 | |
| Specific pollutants | High | 2015 | |
| Copper | High | 2015 | |
| Iron | High | 2015 | |
| Triclosan | High | 2015 | |
| Chemical | Good | 2063 | Natural conditions: Chemical status recovery time |
| Priority hazardous substances | Good | 2063 | Natural conditions: Chemical status recovery time |
| Benzo (b) and (k) fluoranthene | Good | 2015 | |
| Benzo (ghi) perelyene and indeno (123-cd) pyrene | Good | 2015 | |
| Benzo(a)pyrene | 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 | |
| Mercury and Its Compounds | Good | 2015 | |
| Nonylphenol | Good | 2015 | |
| Perfluorooctane sulphonate (PFOS) | Good | 2015 | |
| Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
| Tributyltin Compounds | Good | 2015 | |
| Priority substances | Good | 2015 | |
| Cypermethrin (Priority) | Good | 2015 | |
| Fluoranthene | Good | 2015 | |
| Nickel and Its Compounds | 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 | |
| Hart (Elvetham to Hartley Wintney) NVZ | S447 | Nitrates Directive | |
| Wey | SWSGZ4015 | Safeguard Zone |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.