Epsom North Downs Chalk Water Body

Poor overall status

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Attributes

  • Water Body IDGB40601G602200
  • Water Body TypeGroundwater Body
  • Hydromorphological designationnot applicable
  • NGRTQ3352152738
  • Surface area223.868 km2
  • Surveillance Water BodyNo
  • Groundwater area22386.755 ha

Classifications

Classification Item2019
Overall Water BodyPoor
QuantitativePoor
Quantitative Status elementPoor
Quantitative Dependent Surface Water Body StatusGood
Quantitative GWDTEs testGood
Quantitative Saline IntrusionGood
Quantitative Water BalancePoor
Chemical (GW)Poor
Chemical Status elementPoor
Chemical Dependent Surface Water Body StatusGood
Chemical Drinking Water Protected AreaPoor
Chemical GWDTEs testGood
Chemical Saline IntrusionGood
General Chemical TestGood
Supporting elements (Groundwater)
Prevent and Limit ObjectiveActive
Trend AssessmentUpward trend

Why do all water bodies have a chemical status of fail?

Investigations into classification status

Classification ElementCycleYearStatusOutcome
Quantitative Water Balance22015PoorCertain there is not a problem

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
RNAGPoint sourceLeaking utility sewersWater IndustryChemical Drinking Water Protected AreaDetails
RNAGPoint sourceContaminated landIndustryChemical Drinking Water Protected AreaDetails
RFDDiffuse sourcePoor nutrient managementAgriculture and rural land managementChemical Drinking Water Protected AreaDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementChemical Drinking Water Protected AreaDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementChemical Drinking Water Protected AreaDetails
RNAGPoint sourceContaminated landIndustryTrend AssessmentDetails
RNAGPoint sourceLeaking utility sewersWater IndustryTrend AssessmentDetails
RNAGPoint sourceFarm/site infrastructureAgriculture and rural land managementTrend AssessmentDetails
RNAGNaturalNatural conditions - otherNo sector responsibleQuantitative Water BalanceDetails
RFDPoint sourceLeaking utility sewersWater IndustryChemical Drinking Water Protected AreaDetails
RFDPoint sourceContaminated landIndustryChemical Drinking Water Protected AreaDetails
RFDDiffuse sourcePoor soil managementAgriculture and rural land managementChemical Drinking Water Protected AreaDetails

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 management0000020
Industry0010000
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
Total0010020

Objectives

Classification ItemStatusYearReasons
Overall Water BodyPoor2015Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
QuantitativePoor2015Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
Quantitative Status elementPoor2015Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
Quantitative Dependent Surface Water Body StatusGood2021Disproportionately expensive: Disproportionate burdens
Quantitative GWDTEs testGood2015
Quantitative Saline IntrusionGood2015
Quantitative Water BalancePoor2015Disproportionately expensive: Unfavourable balance of costs and benefits
Chemical (GW)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Chemical Status elementGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Chemical Dependent Surface Water Body StatusGood2015
Chemical Drinking Water Protected AreaGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Chemical GWDTEs testGood2015
Chemical Saline IntrusionGood2015
General Chemical TestGood2015

Protected areas

PA NameIdDirectiveMore information
GodstoneG157Nitrates Directive
Gibbs Brook NVZS500Nitrates Directive
Upper Eden NVZS499Nitrates Directive
Mole Gap To Reigate EscarpmentUK0012804Special Area of ConservationNatural England
WesterhamG723Nitrates Directive
SECOMBE CENTREGWSGZ0176Safeguard Zone
OAKSGWSGZ0175Safeguard Zone
Beverley Brook (Motspur Park to Thames) and Pyl Brook at West Barnes NVZS455Nitrates Directive
NOSUCHGWSGZ0174Safeguard Zone
SUTTON/SUTTON COURT RDGWSGZ0179Safeguard Zone
Wandle (Croydon to Wandsworth) and the R. Gravney NVZS464Nitrates Directive
Epsom North Downs ChalkUKGB40601G602200Drinking Water Protected Area
CHEAMGWSGZ0165Safeguard Zone
Hogsmill NVZS450Nitrates Directive

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

Upstream water bodies

    Downstream water bodies