The Birket including Arrowe Brook and Fender Water Body

Moderate ecological status

Viewing latest data (Updated on 14 September 2021). Switch to draft river basin management plan data

Attributes

  • Water Body IDGB112068060530
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRSJ2638687986
  • Surveillance Water BodyNo
  • Length26.134 km
  • Catchment area78.264 km2
  • Catchment area7826.434 ha

Classifications

Classification Item20132014201520162019
EcologicalModerateModerateModerateModerateModerate
Biological quality elementsPoorPoorPoorPoorPoor
FishPoorPoorPoorPoorPoor
InvertebratesPoorPoorPoorPoorPoor
Physico-chemical quality elementsModerateModerateModerateModerateModerate
Ammonia (Phys-Chem)PoorPoorModerateModerateModerate
Biochemical Oxygen Demand (BOD)ModerateModerateModerateModerate
Dissolved oxygenBadBadBadBadBad
PhosphatePoorPoorPoor
TemperatureHighHighHighHighHigh
pHHighHighHighHighHigh
Hydromorphological Supporting ElementsSupports goodSupports goodSupports goodSupports goodSupports good
Hydrological RegimeSupports goodSupports goodSupports goodSupports goodSupports good
Supporting elements (Surface Water)ModerateModerateModerateModerateModerate
Mitigation Measures AssessmentModerate or lessModerate or lessModerate or lessModerate or lessModerate or less
Specific pollutantsModerateModerateHighHighHigh
CopperHighHigh
TriclosanModerateModerateHighHighHigh
ZincHighHigh
ChemicalFailFailGoodGoodFail
Priority hazardous substancesFailFailDoes not require assessmentGoodFail
Benzo(a)pyreneGood
Cadmium and Its CompoundsGoodGood
Di(2-ethylhexyl)phthalate (Priority hazardous)GoodGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsFail
NonylphenolFailFailGoodGood
Perfluorooctane sulphonate (PFOS)Fail
Polybrominated diphenyl ethers (PBDE)Fail
Tributyltin CompoundsGoodGood
Priority substancesGoodGoodDoes not require assessmentDoes not require assessmentGood
FluorantheneGood
Lead and Its CompoundsGoodGood
Nickel and Its CompoundsGoodGood
Other PollutantsDoes not require assessmentDoes not require assessmentDoes not require assessmentDoes not require assessmentDoes not require assessment

Investigations into classification status

No data to show

Reasons for not achieving good (RNAG) and reasons for deterioration (RFD)

Reason TypeSWMIActivityCategoryClassification ElementMore information
RNAGDiffuse sourceContaminated landUrban and transportDissolved oxygenDetails
RNAGFlowLand drainageAgriculture and rural land managementDissolved oxygenDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Urban and transportMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGDiffuse sourceContaminated landUrban and transportAmmonia (Phys-Chem)Details
RNAGDiffuse sourceUrbanisation - urban developmentUrban and transportDissolved oxygenDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementFishDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementInvertebratesDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementInvertebratesDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementAmmonia (Phys-Chem)Details
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementFishDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementFishDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementFishDetails
RNAGDiffuse sourceUrbanisation - urban developmentUrban and transportFishDetails
RNAGPhysical modificationLand drainage - structuresAgriculture and rural land managementFishDetails
RNAGOther pressuresEcological recovery time - surface watersNo sector responsibleFishDetails
RNAGPhysical modificationPorts and harbours - structuresSector under investigationFishDetails
RNAGPhysical modificationFlood protection - structuresUrban and transportFishDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementAmmonia (Phys-Chem)Details
RNAGDiffuse sourceUrbanisation - urban developmentUrban and transportAmmonia (Phys-Chem)Details
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementBiochemical Oxygen Demand (BOD)Details
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementBiochemical Oxygen Demand (BOD)Details
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementBiochemical Oxygen Demand (BOD)Details
RNAGDiffuse sourceUrbanisation - urban developmentUrban and transportBiochemical Oxygen Demand (BOD)Details
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementDissolved oxygenDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementDissolved oxygenDetails
RNAGDiffuse sourceUrbanisation - urban developmentUrban and transportPhosphateDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementPhosphateDetails
RNAGPhysical modificationFlood protection - structuresSector under investigationInvertebratesDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementInvertebratesDetails
RNAGDiffuse sourceUrbanisation - urban developmentUrban and transportInvertebratesDetails

Reasons for not achieving good status by business sector

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 in water bodies, there may be more than one reason in a single water body.

Significant water management issuePhysical modificationsPollution from waste waterPollution from towns, cities and transportChanges to the natural flow and level of waterInvasive non-native speciesPollution from rural areasPollution from abandoned mines
Agriculture and rural land management1001010
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport2060000
Water Industry0000000
Local & central government1000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation1000000
Total5061010

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027Disproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027Disproportionately expensive: Disproportionate burdens
FishGood2027Disproportionately expensive: Disproportionate burdens
InvertebratesGood2027Disproportionately expensive: Disproportionate burdens
Macrophytes and Phytobenthos CombinedNot assessed2015Disproportionately expensive: Disproportionate burdens
Physico-chemical quality elementsGood2027Disproportionately expensive: Disproportionate burdens
Ammonia (Phys-Chem)Good2027Disproportionately expensive: Disproportionate burdens
Dissolved oxygenGood2027Disproportionately expensive: Disproportionate burdens
PhosphateGood2027Disproportionately expensive: Disproportionate burdens
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Good2027Disproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027Disproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
TriclosanHigh2015
ChemicalGood2015
Priority hazardous substancesDoes not require assessment2015
Priority substancesDoes not require assessment2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveTypeMore information
North Wirral (East)UKSW109Shellfish Water Directive

Upstream water bodies

    Downstream water bodies