Checkley Brook - Lower Water Body

Poor ecological status

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

Attributes

  • Water Body IDGB112068055240
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRSJ7071848379
  • Surveillance Water BodyYes
  • Length13.054 km
  • Catchment area28.585 km2
  • Catchment area2858.549 ha

Classifications

Classification Item20132014201520162019
EcologicalModerateModerateModeratePoorPoor
Biological quality elementsModerateModerateModeratePoorPoor
FishGoodGoodPoorPoor
InvertebratesHighHighGoodGoodHigh
Macrophytes and Phytobenthos CombinedModerateModerateModerateModerateModerate
Physico-chemical quality elementsModerateModerateModerateModerateModerate
Ammonia (Phys-Chem)HighHighHighHighHigh
Dissolved oxygenHighHighHighHighHigh
PhosphatePoorPoorModeratePoorPoor
TemperatureHighHighHighHighHigh
pHHighHighHighHighHigh
Hydromorphological Supporting ElementsSupports goodSupports goodSupports goodSupports goodSupports good
Hydrological RegimeSupports goodSupports goodSupports goodSupports goodSupports good
MorphologySupports goodSupports goodSupports goodSupports goodSupports good
Specific pollutantsHighHighHighHighHigh
ChlorothalonilHigh
Chromium (VI)High
CopperHighHighHighHighHigh
IronHigh
ManganeseHigh
PendimethalinHigh
TriclosanHighHigh
ZincHighHighHigh
ChemicalGoodGoodGoodGoodFail
Priority hazardous substancesGoodGoodGoodGoodFail
Benzo(a)pyreneGood
Benzo(b)fluorantheneGood
Benzo(g-h-i)peryleneGood
Benzo(k)fluorantheneGood
Cadmium and Its CompoundsGoodGoodGood
Di(2-ethylhexyl)phthalate (Priority hazardous)GoodGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
HexachlorocyclohexaneGood
Mercury and Its CompoundsFail
NonylphenolGoodGoodGoodGoodGood
PentachlorobenzeneGood
Perfluorooctane sulphonate (PFOS)Fail
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Tributyltin CompoundsGoodGoodGood
Priority substancesGoodGoodGoodGoodGood
1,2-dichloroethaneGoodGoodGood
AclonifenGood
AlachlorGood
BenzeneGoodGoodGood
BifenoxGood
Cybutryne (IrgarolĀ®)Good
Cypermethrin (Priority hazardous)Good
DichloromethaneGoodGoodGood
Dichlorvos (Priority)Good
FluorantheneGood
Lead and Its CompoundsGoodGoodGood
Nickel and Its CompoundsGoodGoodGood
TerbutrynGood
TrichloromethaneGoodGoodGood
Other PollutantsDoes not require assessmentDoes not require assessmentGoodGoodGood
Carbon TetrachlorideGoodGoodGood
DDT TotalGoodGoodGood
para - para DDTGoodGoodGood

Investigations into classification status

No data to show

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

Reason TypeSWMIActivityCategoryClassification ElementMore information
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementPhosphateDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGPoint sourceFarm/site infrastructureAgriculture and rural land managementPhosphateDetails
RFDDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementFishDetails
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
RNAGPoint sourceSewage discharge (continuous)Water IndustryMacrophytes and Phytobenthos CombinedDetails
RNAGDiffuse sourcePoor Livestock 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 management0000090
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport0000000
Water Industry0200000
Local & central government0000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total0200090

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027Disproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027Disproportionately expensive: Disproportionate burdens
FishGood2015
InvertebratesGood2015
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 pollutantsHigh2015
CopperHigh2015
ChemicalGood2015
Priority hazardous substancesGood2015
NonylphenolGood2015
Priority substancesGood2015
1,2-dichloroethaneGood2015
BenzeneGood2015
DichloromethaneGood2015
TrichloromethaneGood2015
Other PollutantsGood2015
Carbon TetrachlorideGood2015
DDT TotalGood2015
para - para DDTGood2015

Protected areas

PA NameIdDirectiveTypeMore information
River Weaver (Dane to Frodsham) NVZ S636S636Nitrates Directive
Wybunbury G176G176Nitrates Directive

Upstream water bodies

Downstream water bodies