Sett Water Body

Moderate ecological status

Attributes

  • Water Body IDGB112069060970
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRSK0067488021
  • Catchment area47.143 km2
  • Surveillance Water BodyNo
  • Length16.876 km
  • Catchment area4714.311 ha

Classifications

Classification Item2019
EcologicalModerate
Biological quality elementsModerate
InvertebratesGood
Macrophytes and Phytobenthos CombinedModerate
Phytobenthos Sub ElementModerate
Physico-chemical quality elementsModerate
Ammonia (Phys-Chem)High
Dissolved oxygenHigh
PhosphateModerate
TemperatureHigh
pHHigh
Hydromorphological Supporting ElementsSupports good
Hydrological RegimeDoes not support good
Specific pollutantsHigh
ChlorothalonilHigh
CopperHigh
PendimethalinHigh
ChemicalFail
Priority hazardous substancesFail
Benzo(a)pyreneGood
Cadmium and Its CompoundsGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
HexachlorocyclohexaneGood
Mercury and Its CompoundsFail
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Priority substancesGood
AclonifenGood
AlachlorGood
BifenoxGood
CybutryneGood
Cypermethrin (Priority)Good
Dichlorvos (Priority)Good
FluorantheneGood
PentachlorophenolGood
TerbutrynGood
Other PollutantsDoes not require assessment

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

Investigations into classification status

Classification ElementCycleYearStatusOutcome
Phosphate22016GoodQuite certain there is a problem
Phosphate22015HighVery certain there is 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
RFDHigh to Good deterioration, no action required (RFD only)Not applicableNo sector responsibleInvertebratesDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGSuspect dataNot applicableNo sector responsibleHydrological RegimeDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryMacrophytes and Phytobenthos CombinedDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RFDMonitoring Site Changed (RFD only)Not applicableNo sector responsiblePhosphateDetails

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 Industry0200000
Local & central government0000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total0200000

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Physico-chemical quality elementsGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2015
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2021Disproportionately expensive: Disproportionate burdens
Supporting elements (Surface Water)Not assessed2015
Specific pollutantsHigh2015
ChlorothalonilHigh2015
CopperHigh2015
PendimethalinHigh2015
ChemicalGood2063Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time
Benzo(a)pyreneGood2015
Cadmium and Its CompoundsGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
HexachlorocyclohexaneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
QuinoxyfenGood2015
Priority substancesGood2015
AclonifenGood2015
AlachlorGood2015
BifenoxGood2015
CybutryneGood2015
Cypermethrin (Priority)Good2015
Dichlorvos (Priority)Good2015
FluorantheneGood2015
PentachlorophenolGood2015
TerbutrynGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
South Pennine MoorsUK0030280Special Area of ConservationNatural England
Peak District Moors (South Pennine Moors Phase 1)UK9007021Special Protection AreaNatural 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
161362 16136220192019
67789 677892014, 2010, 20092015, 2016, 2014
MERSEY/RIVER GOYT/RIVER SETT/GYSE02/ 258502010, 2009
MERSEY/RIVER GOYT/RIVER SETT/GYSE05/ 64362009
MERSEY/RIVER GOYT/RIVER SETT/SE01A/ 72662014, 2012, 2010, 2013, 2009, 2011
RIVER SETT U/S BROOKHOUSE BROOK 880018972009
RIVER SETT ABOVE CONFLUENCE WITH GOYT 880018982011, 2014, 2012, 2013, 2010, 20092014, 2015, 2013, 2016, 20192019
MERSEY/RIVER GOYT/RIVER SETT/SE01/ 64322014, 2012, 2010, 2013, 2009, 2011
67853 678532010, 2009
67808 678082015, 2013, 2016, 20192019
MERSEY/RIVER GOYT/RIVER KINDER/GYKI01/ 258452014, 2012, 2010, 2013, 2009, 2011
MERSEY/RIVER GOYT/RIVER SETT/GYSE03/ 258512010, 2009
RIVER SETT ABOVE HAYFIELD VILLAGE 880018922011, 2012, 2010, 20092015, 2016
ROWARTH BROOK PTC RIVER SETT 8800188920092015, 2016
MERSEY/RIVER GOYT/RIVER SETT/RIVER SETT/GYSE03/ 293642010, 2009
67397 673972014, 2010, 20092015, 2016, 2014, 20192019

Upstream water bodies

    Downstream water bodies