Valley Brook (Source to Englesea Brook) Water Body
Poor ecological status
Get Valley Brook (Source to Englesea Brook) data
Attributes
- Water Body IDGB112068074630
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRSJ7969754290
- Catchment area2516.13 ha
- Length22.676 km
- Catchment area25.161 km2
- Surveillance Water BodyNo
Classifications
Classification Item | 2019 |
---|---|
Ecological | Poor |
Biological quality elements | Poor |
Invertebrates | Poor |
Macrophytes and Phytobenthos Combined | Moderate |
Macrophytes Sub Element | Moderate |
Physico-chemical quality elements | Moderate |
Acid Neutralising Capacity | High |
Ammonia (Phys-Chem) | Moderate |
Biochemical Oxygen Demand (BOD) | High |
Dissolved oxygen | Good |
Phosphate | Good |
Temperature | High |
pH | High |
Hydromorphological Supporting Elements | Supports good |
Hydrological Regime | Does not support good |
Morphology | Supports good |
Specific pollutants | High |
Chromium (VI) | High |
Copper | High |
Iron | High |
Zinc | High |
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) | Good |
Polybrominated diphenyl ethers (PBDE) | Fail |
Priority substances | Good |
Cypermethrin (Priority) | Good |
Fluoranthene | Good |
Lead and Its Compounds | Good |
Nickel and Its Compounds | Good |
Other Pollutants | Does not require assessment |
Investigations into classification status
Classification Element | Cycle | Year | Status | Outcome |
---|---|---|---|---|
Dissolved oxygen | 2 | 2016 | High | Quite certain there is a problem |
Hydrological Regime | 2 | 2016 | Supports Good | Uncertain there is a problem |
Ammonia (Phys-Chem) | 2 | 2014 | Moderate | Quite certain there is a problem |
Dissolved oxygen | 2 | 2014 | Moderate | Quite certain there is a problem |
Copper | 2 | 2015 | Moderate | Certain there is not a problem |
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 | Urbanisation - urban development | Urban and transport | Invertebrates | Details |
RFD | Suspect data | Not applicable | No sector responsible | Macrophytes and Phytobenthos Combined | 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 |
RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phosphate | Details |
RNAG | Diffuse source | Urbanisation - urban development | Urban and transport | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
RNAG | Point source | Farm/site infrastructure | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RFD | High to Good deterioration, no action required (RFD only) | Not applicable | No sector responsible | Dissolved oxygen | Details |
RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phosphate | Details |
RFD | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Dissolved oxygen | Details |
RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RFD | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Ammonia (Phys-Chem) | Details |
RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Ammonia (Phys-Chem) | Details |
RFD | Point source | Sewage discharge (continuous) | Water Industry | Macrophytes and Phytobenthos Combined | Details |
RNAG | Flow | Unknown (pending investigation) | Sector under investigation | Hydrological Regime | Details |
RNAG | Point source | Sewage discharge (continuous) | Water Industry | Macrophytes and Phytobenthos Combined | Details |
RNAG | Diffuse source | Urbanisation - urban development | Urban and transport | Phosphate | Details |
RNAG | Point source | Farm/site infrastructure | Agriculture and rural land management | Phosphate | Details |
RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | 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 | 0 | 0 | 0 | 0 | 0 | 4 | 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 | 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 | 0 | 2 | 1 | 0 | 0 | 4 | 0 |
Objectives
Classification Item | Status | Year | Reasons |
---|---|---|---|
Ecological | Moderate | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
Biological quality elements | Moderate | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
Invertebrates | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
Macrophytes and Phytobenthos Combined | Moderate | 2027 - Low confidence | 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 |
Acid Neutralising Capacity | Good | 2015 | |
Ammonia (Phys-Chem) | Good | 2015 | |
Dissolved oxygen | Good | 2027 | Disproportionately expensive: Disproportionate burdens |
Phosphate | Moderate | 2027 - Low confidence | 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 | 2021 | Disproportionately expensive: Disproportionate burdens |
Chromium (VI) | High | 2015 | |
Copper | High | 2021 | Disproportionately expensive: Disproportionate burdens |
Iron | High | 2015 | |
Zinc | High | 2015 | |
Chemical | Good | 2063 | Natural conditions: Chemical status recovery time |
Priority hazardous substances | Good | 2063 | Natural conditions: Chemical status recovery time |
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 | 2015 | |
Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
Priority substances | Good | 2015 | |
Cypermethrin (Priority) | Good | 2015 | |
Fluoranthene | Good | 2015 | |
Lead and Its Compounds | Good | 2015 | |
Nickel and Its Compounds | Good | 2015 | |
Other Pollutants | Does not require assessment | 2015 |
Protected areas
PA Name | Id | Directive | More information |
---|---|---|---|
River Weaver (Dane to Frodsham) NVZ | S636 | Nitrates Directive | |
Midland Meres & Mosses Phase 2 | UK11080 | Ramsar Site | Natural England |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.