Whitton Castle East Lake Water Body

Poor ecological status

Viewing latest data (Updated on 01 February 2022). Switch to draft river basin management plan data

Attributes

  • Water Body IDGB30328862
  • Water Body TypeLake
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRNZ1549431190
  • Surveillance Water BodyNo
  • Altitude83 m
  • Catchment area44760.25 ha
  • Surface area6.427 ha
  • Mean depth4.53 m
  • Surface area0.064 km2

Classifications

Classification Item20132014201520162019
EcologicalModerateModerateModeratePoorPoor
Biological quality elementsModerateModerateModeratePoorPoor
PhytoplanktonModerateModerateModeratePoorPoor
Physico-chemical quality elementsGoodGoodGoodModerateModerate
SalinityHighHighHighHigh
Total PhosphorusGoodGoodGoodModerateModerate
Hydromorphological Supporting ElementsSupports goodSupports goodSupports goodSupports goodSupports good
Hydrological RegimeHighHighHighHighHigh
MorphologySupports goodSupports goodSupports goodSupports goodSupports good
Supporting elements (Surface Water)ModerateModerateModerateModerateModerate
Expert JudgementModerateModerateModerateModerateModerate
ChemicalGoodGoodGoodGoodFail
Priority hazardous substancesDoes not require assessmentDoes not require assessmentDoes not require assessmentDoes not require assessmentFail
Benzo(a)pyreneGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsFail
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesDoes not require assessmentDoes not require assessmentDoes not require assessmentDoes not require assessmentGood
FluorantheneGood
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)

All reasons (RFDs and RNAGs) attributed to the classification elements in this water body.

Reason TypeSWMIActivityCategoryClassification ElementMore information
RFDUnknown (pending investigation)Unknown (pending investigation)Sector under investigationTotal PhosphorusDetails
RFDUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPhytoplanktonDetails
RNAGMeasures delivered to address Reason, awaiting classificationNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGMeasures delivered to address Reason, awaiting classificationNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGInvasive non-native speciesOther (not in list, must add details in comments)No sector responsiblePhytoplanktonDetails

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 responsible0000100
Sector under investigation0000000
Total0000100

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027Technically infeasible: Cause of adverse impact unknown
Biological quality elementsGood2027Technically infeasible: Cause of adverse impact unknown
PhytoplanktonGood2027Technically infeasible: Cause of adverse impact unknown
Physico-chemical quality elementsGood2015
SalinityGood2015
Total PhosphorusGood2015
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

No data to show

Monitoring sites

Upstream water bodies

    Downstream water bodies