Birkin Brook - Source to Mobberley Brook Water Body
Poor ecological status
Get Birkin Brook - Source to Mobberley Brook data
Attributes
- Water Body IDGB112069061340
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRSJ7652183294
- Catchment area4253.3 ha
- Length25.76 km
- Catchment area42.533 km2
- Surveillance Water BodyYes
Classifications
| Classification Item | 2019 | 2022 |
|---|---|---|
| Ecological | Poor | Poor |
| Biological quality elements | Poor | Poor |
| Fish | Moderate | Moderate |
| Invertebrates | Good | Good |
| Macrophytes and Phytobenthos Combined | Poor | Poor |
| Macrophytes Sub Element | Poor | Poor |
| Phytobenthos Sub Element | Moderate | Moderate |
| Physico-chemical quality elements | Moderate | Moderate |
| Acid Neutralising Capacity | High | High |
| Ammonia (Phys-Chem) | High | Good |
| Biochemical Oxygen Demand (BOD) | High | |
| Dissolved oxygen | High | High |
| Phosphate | Moderate | Poor |
| 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 |
| Chlorothalonil | High | High |
| Chromium (VI) | High | High |
| Copper | High | High |
| Iron | High | High |
| Manganese | High | High |
| Pendimethalin | 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 | Fail | |
| Benzo(g-h-i)perylene | Fail | |
| Benzo(k)fluoranthene | Fail | |
| Cadmium and Its Compounds | 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 | Fail | |
| Nonylphenol | Good | |
| Pentachlorobenzene | Good | |
| Perfluorooctane sulphonate (PFOS) | Good | |
| Polybrominated diphenyl ethers (PBDE) | Fail | |
| Quinoxyfen | Good | |
| Tributyltin Compounds | Good | |
| Priority substances | Good | Does not require assessment |
| 1,2-dichloroethane | Good | |
| Aclonifen | Good | |
| Alachlor | Good | |
| Benzene | Good | |
| Bifenox | Good | |
| Cybutryne | Good | |
| Cypermethrin (Priority) | Good | |
| Dichloromethane | Good | |
| Dichlorvos (Priority) | Good | |
| Fluoranthene | Good | |
| Lead and Its Compounds | Good | |
| Nickel and Its Compounds | Good | |
| Terbutryn | Good | |
| Trichloromethane | Good | |
| Other Pollutants | Good | Does not require assessment |
| Carbon Tetrachloride | Good | |
| DDT Total | Good | |
| para - para DDT | Good |
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 | Point source | Misconnections | Domestic General Public | Phosphate | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Benzo(b)fluoranthene | Details |
| RNAG | Diffuse source | Riparian/in-river activities (inc bankside erosion) | Agriculture and rural land management | Phosphate | Details |
| RFD | Method Change (RFD Only) | Not applicable | No sector responsible | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Riparian/in-river activities (inc bankside erosion) | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Fish | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | 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 | Macrophytes and Phytobenthos Combined | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Benzo(k)fluoranthene | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Benzo(g-h-i)perylene | 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 | 0 | 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 | 0 | 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 |
| Fish | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Invertebrates | Good | 2015 | |
| Macrophytes and Phytobenthos Combined | 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 | |
| Dissolved oxygen | Good | 2015 | |
| Phosphate | Good | 2027 - Low confidence | 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 | |
| Zinc | 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 | |
| Benzo(b)fluoranthene | Good | 2033 | Technically infeasible: No known technical solution is available |
| Benzo(g-h-i)perylene | Good | 2033 | Technically infeasible: No known technical solution is available |
| Benzo(k)fluoranthene | Good | 2033 | Technically infeasible: No known technical solution is available |
| Cadmium and Its Compounds | 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 | 2040 | Natural conditions: Chemical status recovery time |
| Nonylphenol | Good | 2015 | |
| Pentachlorobenzene | Good | 2015 | |
| Perfluorooctane sulphonate (PFOS) | Good | 2015 | |
| Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
| Quinoxyfen | Good | 2015 | |
| Tributyltin Compounds | Good | 2015 | |
| Priority substances | Good | 2015 | |
| 1,2-dichloroethane | Good | 2015 | |
| Aclonifen | Good | 2015 | |
| Alachlor | Good | 2015 | |
| Benzene | Good | 2015 | |
| Bifenox | Good | 2015 | |
| Cybutryne | Good | 2015 | |
| Cypermethrin (Priority) | Good | 2015 | |
| Dichloromethane | Good | 2015 | |
| Dichlorvos (Priority) | Good | 2015 | |
| Fluoranthene | Good | 2015 | |
| Lead and Its Compounds | Good | 2015 | |
| Nickel and Its Compounds | Good | 2015 | |
| Terbutryn | Good | 2015 | |
| Trichloromethane | Good | 2015 | |
| Other Pollutants | Good | 2015 | |
| Carbon Tetrachloride | Good | 2015 | |
| DDT Total | Good | 2015 | |
| para - para DDT | Good | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| Midland Meres & Mosses - Phase 1 | UK11043 | 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.