Winscar Reservoir Water Body

Bad ecological status

Attributes

  • Water Body IDGB30431876
  • Water Body TypeLake
  • Hydromorphological designationheavily modified
  • NGRSE1485102647
  • Altitude346 m
  • Mean depth17.841 m
  • Surveillance Water BodyNo
  • Surface area0.514 km2
  • Surface area51.394 ha
  • Catchment area824.5 ha

Classifications

Classification Item20192022
EcologicalBadBad
Biological quality elementsBadBad
Macrophytes and Phytobenthos CombinedBadBad
Macrophytes Sub ElementBadBad
PhytoplanktonGoodHigh
Physico-chemical quality elementsModerateModerate
SalinityHighHigh
Total NitrogenGoodGood
Total PhosphorusPoorPoor
Supporting elements (Surface Water)ModerateModerate
Expert JudgementModerateModerate
Mitigation Measures AssessmentModerate or lessModerate or less
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 CompoundsFail
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 modificationOther (not in list, must add details in comments)Water IndustryMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Water IndustryMitigation Measures AssessmentDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
RNAGPhysical modificationReservoir / Impoundment - non flow relatedWater IndustryMacrophytes and Phytobenthos CombinedDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGDiffuse sourceMoorland managementAgriculture and rural land managementTotal PhosphorusDetails
RNAGDiffuse sourceOther (not in list, must add details in comments)Agriculture and rural land managementTotal PhosphorusDetails
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 Industry3000000
Local & central government0000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total3000000

Objectives

Classification ItemStatusYearReasons
EcologicalModerate2027 - Low confidenceDisproportionately 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 elementsModerate2027 - Low confidenceDisproportionately expensive: Disproportionate burdens;
Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use
Macrophytes and Phytobenthos CombinedModerate2027 - Low confidenceDisproportionately expensive: Disproportionate burdens;
Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use
PhytoplanktonGood2015
Physico-chemical quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
SalinityGood2015
Total NitrogenGood2015
Total PhosphorusGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Hydromorphological Supporting ElementsNot assessed2015
Supporting elements (Surface Water)Moderate2015Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
Expert JudgementGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentModerate or less2021Disproportionately expensive: Unfavourable balance of costs and benefits
Specific pollutantsNot assessed2015
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 CompoundsGood2040Natural conditions: Chemical status recovery time
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

No data to show

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
WINSCAR RESERVOIR 493023782009, 20122015, 2019, 20162022, 2019
155323 1553232013, 20142019, 2015, 2014, 2013, 20162019, 2022

Upstream water bodies

    Downstream water bodies