Ouse from River Nidd to Stillingfleet Beck Water Body

Moderate ecological status

Attributes

  • Water Body IDGB104027069593
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRSE5261157615
  • Surveillance Water BodyYes
  • Length41.36 km
  • Catchment area83.121 km2
  • Catchment area8312.069 ha

Classifications

Classification Item2019
EcologicalModerate
Biological quality elementsGood
InvertebratesHigh
Macrophytes and Phytobenthos CombinedGood
Macrophytes Sub ElementPoor
Phytobenthos Sub ElementGood
Physico-chemical quality elementsModerate
Acid Neutralising CapacityHigh
Ammonia (Phys-Chem)High
Dissolved oxygenHigh
PhosphateModerate
TemperatureHigh
pHHigh
Hydromorphological Supporting ElementsSupports good
Hydrological RegimeSupports good
Supporting elements (Surface Water)Moderate
Mitigation Measures AssessmentModerate or less
Specific pollutantsHigh
2,4-dichlorophenoxyacetic acidHigh
ArsenicHigh
CarbendazimHigh
ChlorothalonilHigh
Chromium (VI)High
CopperHigh
DiazinonHigh
DimethoateHigh
GlyphosateHigh
IronHigh
LinuronHigh
ManganeseHigh
MecopropHigh
PendimethalinHigh
PermethrinHigh
ZincHigh
ChemicalFail
Priority hazardous substancesFail
Benzo(a)pyreneGood
Benzo(b)fluorantheneGood
Benzo(g-h-i)peryleneGood
Benzo(k)fluorantheneGood
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
PentachlorobenzeneGood
Perfluorooctane sulphonate (PFOS)Fail
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Tributyltin CompoundsGood
Trifluralin (Priority hazardous)Good
Priority substancesGood
1,2-dichloroethaneGood
AclonifenGood
AlachlorGood
AtrazineGood
BenzeneGood
BifenoxGood
ChlorfenvinphosGood
ChlorpyrifosGood
CybutryneGood
Cypermethrin (Priority)Good
DichloromethaneGood
Dichlorvos (Priority)Good
DiuronGood
FluorantheneGood
IsoproturonGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
PentachlorophenolGood
SimazineGood
TerbutrynGood
TrichlorobenzenesGood
TrichloromethaneGood
Other PollutantsGood
Aldrin, Dieldrin, Endrin & IsodrinGood
Carbon TetrachlorideGood
DDT TotalGood
TetrachloroethyleneGood
TrichloroethyleneGood
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
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
RFDUnknown (pending investigation)Unknown (pending investigation)Sector under investigationMercury and Its CompoundsDetails
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
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 transport1000000
Water Industry0100000
Local & central government1000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total2100000

Objectives

Classification ItemStatusYearReasons
EcologicalModerate2015Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits;
Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use
Biological quality elementsGood2015
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2015
Physico-chemical quality elementsModerate2015Disproportionately expensive: Unfavourable balance of costs and benefits
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateModerate2015Disproportionately expensive: Unfavourable balance of costs and benefits
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
2,4-dichlorophenoxyacetic acidHigh2015
ArsenicHigh2015
CarbendazimHigh2015
ChlorothalonilHigh2015
Chromium (VI)High2015
CopperHigh2015
DiazinonHigh2015
DimethoateHigh2015
GlyphosateHigh2015
IronHigh2015
LinuronHigh2015
ManganeseHigh2015
MecopropHigh2015
PendimethalinHigh2015
PermethrinHigh2015
ZincHigh2015
ChemicalGood2063Natural conditions: Chemical status recovery time;
Technically infeasible: No known technical solution is available
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time;
Technically infeasible: No known technical solution is available
Benzo (b) and (k) fluorantheneGood2015
Benzo (ghi) perelyene and indeno (123-cd) pyreneGood2015
Benzo(a)pyreneGood2015
Benzo(b)fluorantheneGood2015
Benzo(g-h-i)peryleneGood2015
Benzo(k)fluorantheneGood2015
Cadmium and Its CompoundsGood2015
Dioxins and dioxin-like compoundsGood2015
EndosulfanGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
HexachlorocyclohexaneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
NonylphenolGood2015
PentachlorobenzeneGood2015
Perfluorooctane sulphonate (PFOS)Good2039Technically infeasible: No known technical solution is available
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
QuinoxyfenGood2015
Tributyltin CompoundsGood2015
Trifluralin (Priority hazardous)Good2015
Priority substancesGood2015
1,2-dichloroethaneGood2015
AclonifenGood2015
AlachlorGood2015
AtrazineGood2015
BenzeneGood2015
BifenoxGood2015
ChlorfenvinphosGood2015
ChlorpyrifosGood2015
CybutryneGood2015
Cypermethrin (Priority)Good2015
DichloromethaneGood2015
Dichlorvos (Priority)Good2015
DiuronGood2015
FluorantheneGood2015
IsoproturonGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
PentachlorophenolGood2015
SimazineGood2015
TerbutrynGood2015
TrichlorobenzenesGood2015
TrichloromethaneGood2015
Other PollutantsGood2015
Aldrin, Dieldrin, Endrin & IsodrinGood2015
Carbon TetrachlorideGood2015
DDT TotalGood2015
TetrachloroethyleneGood2015
TrichloroethyleneGood2015
para - para DDTGood2015

Protected areas

PA NameIdDirectiveMore information
Vale of YorkG103Nitrates Directive
Ouse from Naburn to Sillingfleet NVZS289Nitrates Directive
Acomb Landing & Moor MonktonSWSGZ6007Safeguard Zone
Ouse from River Nidd to Stillingfleet BeckUKGB104027069593Drinking Water Protected Area

Monitoring sites which have been used to classify this water body