Leigh Brook Water Body
Poor ecological status
Get Leigh Brook data
Attributes
- Water Body IDGB106039017550
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRTQ2212345513
- Catchment area1634.85 ha
- Length17.103 km
- Catchment area16.349 km2
- Surveillance Water BodyNo
Classifications
Classification Item | 2019 | 2022 |
---|---|---|
Ecological | Poor | Poor |
Biological quality elements | Poor | Poor |
Fish | Poor | Poor |
Invertebrates | Moderate | Moderate |
Macrophytes and Phytobenthos Combined | Poor | Poor |
Phytobenthos Sub Element | Poor | Poor |
Physico-chemical quality elements | Moderate | Moderate |
Ammonia (Phys-Chem) | High | Good |
Dissolved oxygen | Good | High |
Phosphate | Bad | Bad |
Temperature | High | High |
pH | High | High |
Hydromorphological Supporting Elements | Supports good | Supports good |
Hydrological Regime | Supports good | Supports good |
Morphology | Supports good | Supports good |
Specific pollutants | High | High |
Triclosan | 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 | |
Dioxins and dioxin-like compounds | Good | |
Heptachlor and cis-Heptachlor epoxide | Good | |
Hexabromocyclododecane (HBCDD) | Good | |
Hexachlorobenzene | Good | |
Hexachlorobutadiene | Good | |
Mercury and Its Compounds | Fail | |
Nonylphenol | Good | |
Perfluorooctane sulphonate (PFOS) | Fail | |
Polybrominated diphenyl ethers (PBDE) | Fail | |
Tributyltin Compounds | Good | |
Priority substances | Fail | Does not require assessment |
Cypermethrin (Priority) | Fail | |
Fluoranthene | 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 | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
RNAG | Point source | Private Sewage Treatment | Domestic General Public | Phosphate | Details |
RNAG | Point source | Sewage discharge (intermittent) | Water Industry | Phosphate | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
RFD | Physical modification | Land drainage - operational management | Agriculture and rural land management | Fish | Details |
RFD | Physical modification | Barriers - ecological discontinuity | Other | Fish | Details |
RFD | Point source | Misconnections | Domestic General Public | Phosphate | Details |
RFD | Point source | Sewage discharge (intermittent) | Water Industry | Phosphate | Details |
RFD | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Invertebrates | Details |
RFD | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
RFD | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
RNAG | Physical modification | Barriers - ecological discontinuity | Other | Fish | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
RNAG | Natural | Drought | No sector responsible | Macrophytes and Phytobenthos Combined | Details |
RNAG | Physical modification | Land drainage - operational management | Agriculture and rural land management | Fish | Details |
RNAG | Point source | Sewage discharge (intermittent) | Water Industry | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Private Sewage Treatment | Urban and transport | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Macrophytes and Phytobenthos Combined | Details |
RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Cypermethrin (Priority) | 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 | 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 | 1 | 0 | 0 | 0 | 0 |
Water Industry | 0 | 7 | 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 | 1 | 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 | 7 | 1 | 0 | 0 | 0 | 0 |
Objectives
Classification Item | Status | Year | Reasons |
---|---|---|---|
Ecological | Poor | 2015 | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
Biological quality elements | Poor | 2015 | Technically infeasible: No known technical solution is available |
Fish | Moderate | 2015 | Technically infeasible: No known technical solution is available |
Invertebrates | Moderate | 2015 | Technically infeasible: No known technical solution is available |
Macrophytes and Phytobenthos Combined | Poor | 2015 | Technically infeasible: No known technical solution is available |
Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
Ammonia (Phys-Chem) | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
Dissolved oxygen | Good | 2015 | |
Phosphate | Moderate | 2027 | Disproportionately expensive: Disproportionate burdens; 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) | Not assessed | 2015 | |
Specific pollutants | High | 2015 | |
Triclosan | 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 | Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
Benzo(a)pyrene | Good | 2015 | |
Benzo(b)fluoranthene | Good | 2015 | |
Benzo(g-h-i)perylene | Good | 2015 | |
Benzo(k)fluoranthene | 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 |
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 |
Tributyltin Compounds | Good | 2015 | |
Priority substances | Good | 2039 | Disproportionately expensive: Disproportionate burdens |
Cypermethrin (Priority) | Good | 2039 | Disproportionately expensive: Disproportionate burdens |
Fluoranthene | Good | 2015 | |
Other Pollutants | Does not require assessment | 2015 |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.