Thorpe Park Lakes Water Body

Poor ecological status

Attributes

  • Water Body IDGB30642753
  • Water Body TypeLake
  • Hydromorphological designationartificial
  • NGRTQ0381268308
  • Altitude13 m
  • Mean depth2.033 m
  • Surveillance Water BodyNo
  • Surface area0.949 km2
  • Surface area94.912 ha
  • Catchment area7171.25 ha

Classifications

Classification Item20192022
EcologicalPoorPoor
Biological quality elementsPoorPoor
Macrophytes and Phytobenthos CombinedPoorPoor
Macrophytes Sub ElementPoorPoor
PhytoplanktonGoodGood
Physico-chemical quality elementsGoodGood
SalinityHighHigh
Total NitrogenGoodGood
Total PhosphorusHighHigh
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeSupports goodSupports good
Supporting elements (Surface Water)ModerateModerate
Expert JudgementGoodGood
Mitigation Measures AssessmentModerate or lessModerate or less
Specific pollutantsHighHigh
CopperHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Benzo(a)pyreneGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsGood
Perfluorooctane sulphonate (PFOS)Fail
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGoodDoes not require assessment
FluorantheneGood
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
RNAGPhysical modificationLand use - arableAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
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
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Macrophytes and Phytobenthos CombinedGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
PhytoplanktonGood2015
Physico-chemical quality elementsGood2015
Dissolved oxygenGood2015
SalinityGood2015
Total NitrogenGood2015
Total PhosphorusGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Good2015
Expert JudgementGood2015
Mitigation Measures AssessmentGood2015
Specific pollutantsHigh2015
CopperHigh2015
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(a)pyreneGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
Mercury and Its CompoundsGood2015
Perfluorooctane sulphonate (PFOS)Good2039Technically infeasible: No known technical solution is available
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
Priority substancesGood2015
FluorantheneGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
South West London WaterbodiesUK9012171Special Protection AreaNatural England
South West London WaterbodiesUK11065Ramsar SiteNatural 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
THORPE PARK LAKE (FLEET LAKE) PGWL01632009, 2014, 2012, 20132016, 2015, 2019, 2014, 20132022, 2019
144451 1444512013, 2014, 2012, 20092016, 2019, 2015, 2014, 20132022, 2019

Upstream water bodies

    Downstream water bodies