Derwent - conf Cocker to tidal Water Body

Moderate ecological status

Attributes

  • Water Body IDGB112075070520
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRNY0118229079
  • Length20.059 km
  • Surveillance Water BodyYes
  • Catchment area36.632 km2
  • Natural England Revised WB Protected Area targetshttp://publications.naturalengland.org.uk/publication/4808084962672640
  • Catchment area3663.231 ha

Classifications

Classification Item20192022
EcologicalGoodModerate
Biological quality elementsGoodGood
FishHighHigh
InvertebratesGoodHigh
Macrophytes and Phytobenthos CombinedGoodGood
Macrophytes Sub ElementGoodHigh
Phytobenthos Sub ElementGoodGood
Physico-chemical quality elementsGoodModerate
Acid Neutralising CapacityHighHigh
Ammonia (Phys-Chem)HighHigh
Dissolved oxygenHighHigh
PhosphateHighHigh
TemperatureGoodGood
pHHighModerate
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeSupports goodSupports good
Specific pollutantsHighHigh
2,4-dichlorophenoxyacetic acidHighHigh
ArsenicHighHigh
ChlorothalonilHighHigh
CopperHighHigh
IronHighHigh
ManganeseHighHigh
PendimethalinHighHigh
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
HexachlorocyclohexaneGood
Mercury and Its CompoundsFail
NonylphenolGood
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Priority substancesGoodDoes not require assessment
1,2-dichloroethaneGood
AclonifenGood
AlachlorGood
BenzeneGood
BifenoxGood
CybutryneGood
Cypermethrin (Priority)Good
DichloromethaneGood
Dichlorvos (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
TerbutrynGood
TrichloromethaneGood
Other PollutantsGoodDoes not require assessment
Aldrin, Dieldrin, Endrin & IsodrinGood
para - para DDTGood

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
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails

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 ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Not assessed2015
Specific pollutantsHigh2015
2,4-dichlorophenoxyacetic acidHigh2015
ArsenicHigh2015
ChlorothalonilHigh2015
CopperHigh2015
IronHigh2015
ManganeseHigh2015
PendimethalinHigh2015
ZincHigh2015
ChemicalGood2063Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time
Benzo (b) and (k) fluorantheneGood2015
Benzo (ghi) perelyene and indeno (123-cd) pyreneGood2015
Benzo(a)pyreneGood2015
Cadmium and Its CompoundsGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
HexachlorocyclohexaneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
NonylphenolGood2015
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
QuinoxyfenGood2015
Priority substancesGood2015
1,2-dichloroethaneGood2015
AclonifenGood2015
AlachlorGood2015
BenzeneGood2015
BifenoxGood2015
CybutryneGood2015
Cypermethrin (Priority)Good2015
DichloromethaneGood2015
Dichlorvos (Priority)Good2015
FluorantheneGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
TerbutrynGood2015
TrichloromethaneGood2015
Other PollutantsGood2015
Aldrin, Dieldrin, Endrin & IsodrinGood2015
para - para DDTGood2015

Protected areas

PA NameIdDirectiveMore information
River Derwent & Bassenthwaite LakeUK0030032Special Area of ConservationNatural 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
67219 672192013, 20112016, 2015, 2013
RIVER DERWENT AT WORKINGTON 880057402009, 2010, 2011, 2013, 2012, 20142016, 2019, 2015, 2013, 20142019, 2022
R. DERWENT AT GREAT CLIFTON RSN06672022
201912 2019122022
155726 1557262011
65200 652002009
RIVER DERWENT/1762.00 CLOFFOCKS BECK/ 198312009
RIVER DERWENT/1538.80 RIVER DERWENT DS CAMERTON CHURCH/ 528432016, 2019, 20152019
RIVER DERWENT U/S BRIGHAM STW 880056882010, 2013, 2011, 2009, 2012, 20142016, 2013, 2019, 2015, 20142019, 2022
DERWENT TRIB AT A66 8800573120092016, 2015
64118 641182012, 2009, 2014, 2010, 2013, 20112016, 2015, 2014, 2013, 20192019, 2022
RIVER DERWENT/1761.00 CLOFFOCKS BECK/ 198302009
RIVER DERWENT AT COCKERMOUTH 880056772010, 2013, 2011, 2009, 2012, 20142013, 2019, 2016, 2014, 20152019, 2022

Downstream water bodies