Leith Water Body

Moderate ecological status

Attributes

  • Water Body IDGB102076070900
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRNY6079425830
  • Catchment area6012.62 ha
  • Length25.819 km
  • Catchment area60.126 km2
  • Natural England Revised WB Protected Area targetshttp://publications.naturalengland.org.uk/publication/5713963425726464
  • Surveillance Water BodyNo

Classifications

Classification Item20192022
EcologicalGoodModerate
Biological quality elementsGoodModerate
FishHighModerate
InvertebratesGoodHigh
Macrophytes and Phytobenthos CombinedGoodModerate
Macrophytes Sub ElementGoodModerate
Physico-chemical quality elementsGoodGood
Acid Neutralising CapacityHigh
Ammonia (Phys-Chem)HighHigh
Dissolved oxygenHighHigh
PhosphateGoodGood
TemperatureHighHigh
pHHighHigh
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeHighHigh
MorphologySupports goodSupports good
Specific pollutantsHighHigh
CopperHighHigh
IronHighHigh
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)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGoodDoes not require assessment
Cypermethrin (Priority)Good
FluorantheneGood
Other PollutantsDoes not require assessmentDoes not require assessment

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

Investigations into classification status

Classification ElementCycleYearStatusOutcome
Copper22014Moderate

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
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
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
EcologicalGood2015
Biological quality elementsGood2015
FishGood2015
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2015
Physico-chemical quality elementsGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenHigh2015
PhosphateGood2015
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsHigh2015
Hydrological RegimeHigh2015
Supporting elements (Surface Water)Not assessed2015
Specific pollutantsHigh2015
CopperHigh2015
IronHigh2015
ChemicalGood2063Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time
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)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
Priority substancesGood2015
Cypermethrin (Priority)Good2015
FluorantheneGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
River EdenUK0012643Special Area of ConservationNatural England
Asby ComplexUK0014778Special Area of ConservationNatural England
Kirby ThoreG53Nitrates Directive
CumwhintonSWSGZ3007Safeguard Zone

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
RIVER EDEN/RIVER EDEN, UPSTREAM EAMONT CONFLUENCE/RIVER LYVENNET/RIVER LEITH/1065.00 RIVER LEITH, CLIBURN, LYVENNET/ 52472011, 2009, 2012, 2010, 20132013
LYVENNET - BRIGHAM BANK RSN15192022
203015 2030152022
RIVER EDEN/RIVER EDEN, UPSTREAM EAMONT CONFLUENCE/RIVER LYVENNET/RIVER LEITH/1065.50 GUNNERKELD SIKE, US LEITH CONFLUENCE/ 271182011, 2009, 2012, 2010, 2013
RIVER EDEN/RIVER EDEN, UPSTREAM EAMONT CONFLUENCE/RIVER LYVENNET/RIVER LEITH/1065.10 DS WEIR AT CLIBURN, RIVER LEITH/ 620832016, 2019, 20152019
67942 679422014, 20092016, 2014, 2015
R. LEITH - SHERIFF PARK WOOD RSN00952022
RIVER EDEN/RIVER EDEN, UPSTREAM EAMONT CONFLUENCE/RIVER LYVENNET/RIVER LEITH/1063.00 RIVER LEITH, GREAT STRICKLAND, LYVENNET/ 52442011, 2009, 2012, 2010, 201320132022
63619 636192010, 2011, 2014, 20092016, 2014, 2015
NOONHOWE SYKE AT NY553254 880061982009
RIVER LEITH @ CLIBURN D/S WEIR 880212612009, 2011, 2014, 2012, 20102016, 2014, 20152022
RIVER LEITH U/S RIVER LYVENNET CLIBURN 880062022011, 2009, 2014, 2013, 2012, 20102015, 2016, 2019, 2014, 20132022, 2019
201920 2019202022
145967 14596720142016, 2015, 2014
RIVER LEITH AT RAILWAY SIDINGS 880062142009, 2014, 2012, 20132019, 2016, 2014, 2015, 20132022, 2019

Upstream water bodies

Downstream water bodies