Marbury Brook Water Body

Moderate ecological status

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

Attributes

  • Water Body IDGB112068055260
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRSJ5343147823
  • Surveillance Water BodyNo
  • Length14.255 km
  • Catchment area48.022 km2
  • Catchment area4802.158 ha

Classifications

Classification Item20132014201520162019
EcologicalModerateModerateModerateModerateModerate
Biological quality elementsModerateModerateModerateModerateModerate
FishGoodGoodGood
InvertebratesModerateModerateModerateModerate
Macrophytes and Phytobenthos CombinedModerateModerateModerateModerateModerate
Physico-chemical quality elementsGoodModerateModerateModerateModerate
Ammonia (Phys-Chem)GoodGoodGoodGoodHigh
Biochemical Oxygen Demand (BOD)HighGoodGoodHigh
Dissolved oxygenGoodHighHighHighGood
PhosphateModerateModerateModerateModerate
TemperatureHighHighHighHighHigh
pHHighHighHighHighHigh
Hydromorphological Supporting ElementsSupports goodSupports goodSupports goodSupports goodSupports good
Hydrological RegimeSupports goodSupports goodSupports goodSupports goodSupports good
MorphologySupports goodSupports goodSupports goodSupports goodSupports good
Specific pollutantsHighHigh
CopperHighHigh
TriclosanHighHigh
ZincHighHigh
ChemicalGoodGoodGoodGoodFail
Priority hazardous substancesGoodGoodDoes not require assessmentDoes not require assessmentFail
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
NonylphenolGoodGood
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Tributyltin CompoundsGoodGood
Priority substancesGoodGoodDoes not require assessmentDoes not require assessmentGood
Cypermethrin (Priority hazardous)Good
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
RNAGPoint sourcePrivate Sewage TreatmentUrban and transportInvertebratesDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementInvertebratesDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGPoint sourceFarm/site infrastructureAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGPoint sourceFarm/site infrastructureAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails

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 management00000170
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport0000000
Water Industry0000000
Local & central government0000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total00000170

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027Disproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027Disproportionately expensive: Disproportionate burdens
FishGood2015
Macrophytes and Phytobenthos CombinedGood2027Disproportionately expensive: Disproportionate burdens
Physico-chemical quality elementsGood2027Disproportionately expensive: Disproportionate burdens
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2027Disproportionately expensive: Disproportionate burdens
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Not assessed2015
Specific pollutantsNot assessed2015
ChemicalGood2015
Priority hazardous substancesDoes not require assessment2015
Priority substancesDoes not require assessment2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveTypeMore information
River Weaver (Dane to Frodsham) NVZ S636S636Nitrates Directive
Marbury G175G175Nitrates Directive
Bar Mere Eutrophic lake NVZ EL140EL140Nitrates Directive

Upstream water bodies