Derwent from Westend to Wye Water Body

Good ecological status

Attributes

  • Water Body IDGB104028057880
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRSK2322375407
  • Surveillance Water BodyNo
  • Length38.062 km
  • Catchment area142.503 km2
  • Catchment area14250.319 ha
  • Catchment Drainage Commentstudies show that in limestone areas the water may travel to more than one catchment

Classifications

Classification Item20192022
EcologicalGoodGood
Biological quality elementsGoodGood
FishGoodGood
InvertebratesHighHigh
Macrophytes and Phytobenthos CombinedGoodGood
Phytobenthos Sub ElementGoodGood
Physico-chemical quality elementsGoodGood
Acid Neutralising CapacityHighHigh
Ammonia (Phys-Chem)HighHigh
Biochemical Oxygen Demand (BOD)High
Dissolved oxygenHighHigh
PhosphateGoodGood
TemperatureHighHigh
pHHighHigh
Supporting elements (Surface Water)GoodGood
Mitigation Measures AssessmentGoodGood
Specific pollutantsHighHigh
ArsenicHighHigh
CopperHighHigh
IronHighHigh
ManganeseHighHigh
ZincHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Benzo(a)pyreneGood
Cadmium and Its CompoundsGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsGood
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGoodDoes not require assessment
Cypermethrin (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
Other PollutantsDoes not require assessmentDoes not require assessment

Why do all water bodies have a chemical status of fail?

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 TypeSWMIActivityCategoryClassification ElementMore information
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)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 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 management0000000
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
Total0000000

Objectives

Classification ItemStatusYearReasons
EcologicalGood2015
Biological quality elementsGood2015
FishGood2015
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2015
Physico-chemical quality elementsGood2015
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2015
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsNot assessed2015
Supporting elements (Surface Water)Good2015
Mitigation Measures AssessmentGood2015
Specific pollutantsHigh2015
ArsenicHigh2015
CopperHigh2015
IronHigh2015
ManganeseHigh2015
ZincHigh2015
ChemicalGood2063Disproportionately expensive: Disproportionate burdens;
Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Disproportionately expensive: Disproportionate burdens;
Natural conditions: Chemical status recovery time
Benzo(a)pyreneGood2015
Cadmium and Its CompoundsGood2021Disproportionately expensive: Disproportionate burdens
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
Mercury and Its CompoundsGood2015
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
Priority substancesGood2015
Cypermethrin (Priority)Good2015
FluorantheneGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
South Pennine MoorsUK0030280Special Area of ConservationNatural England
Peak District DalesUK0019859Special Area of ConservationNatural England
Peak District Moors (South Pennine Moors Phase 1)UK9007021Special Protection AreaNatural 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.

Monitoring SiteCycle 1Cycle 2Cycle 3
TRENT/DERWENT/HATHERSAGE/ 35552009, 2014, 2012, 2010, 2013, 20112019, 2014, 2015, 2013, 20162019, 2022
48389 483892014, 2012, 2013, 2009, 2011
53618 5361820192022, 2019
RIVER DERWENT AT FROGGATT 497093002015, 2016
RIVER DERWENT AT BASLOW DEVONSHIRE BRDGE 497081002009, 2014, 2013, 2010, 2011, 20122015, 2016
46924 469242014, 2012, 2010, 2013, 2009, 201120192022, 2019
RIVER DERWENT AT GRINDLEFORD 497098702009, 2014, 2010, 2013, 2011, 2012
TRENT/DERWENT/YORKSHIRE BRIDGE/ 35542009, 2014, 2012, 2010, 2013, 20112019, 2014, 2015, 2013, 20162019, 2022
TRENT/DERWENT/STOKE BROOK/CALVER/ 289132009, 2012, 2010, 2013, 2011
RIVER DERWENT AT LEADMILL BDG HATHERSAGE 497105002009, 2012, 2014, 2010, 2013, 2011
TRENT/DERWENT/BASLOW/ 35562009, 2010, 2011
STOKE BK AT STONEY MIDDLETON CARVER 523961502009, 2010, 2011
TRENT/DERWENT/STOKE BROOK/CALVER MARSHES/ 289312009, 2010
HURSTCLOUGH BK D/S BAMFORD FILTERS 5271812020192019
RIVER DERWENT AT ROWSLEY 497066902009, 2012, 2014, 2010, 2013, 20112015, 2019, 2014, 2016, 20132019, 2022
51495 514952014, 2012, 2010, 2013, 2009, 20112014, 2015, 2013, 2016, 20192022, 2019
51342 5134220192022, 2019
RIVER DERWENT AT YORKSHIRE BRIDGE 497123802009, 2014, 2010, 2013, 2011, 2012

Downstream water bodies