Little Ryburgh Tributary Water Body

Moderate ecological status

Attributes

  • Water Body IDGB105034055860
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRTF9533728680
  • Catchment area18.123 km2
  • Catchment area1812.319 ha
  • Surveillance Water BodyNo
  • Length4.749 km

Classifications

Classification Item2019
EcologicalModerate
Biological quality elementsGood
FishGood
InvertebratesHigh
Physico-chemical quality elementsGood
Ammonia (Phys-Chem)High
Dissolved oxygenHigh
PhosphateGood
TemperatureHigh
pHHigh
Hydromorphological Supporting ElementsSupports good
Hydrological RegimeHigh
Supporting elements (Surface Water)Moderate
Mitigation Measures AssessmentModerate or less
Specific pollutantsHigh
IronHigh
ChemicalFail
Priority hazardous substancesFail
Benzo(a)pyreneGood
Benzo(b)fluorantheneGood
Benzo(g-h-i)peryleneGood
Benzo(k)fluorantheneGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsGood
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGood
Cypermethrin (Priority)Good
FluorantheneGood
Other PollutantsDoes not require assessment

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

Investigations into classification status

Classification ElementCycleYearStatusOutcome
Hydrological Regime22016Does Not Support Good

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 responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGPhysical modificationOther (not in list, must add details in comments)Agriculture and rural land managementMitigation Measures AssessmentDetails

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 management1000000
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
Total1000000

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Biological quality elementsGood2015
FishGood2015
InvertebratesGood2015
Physico-chemical quality elementsGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2015
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
IronHigh2015
ChemicalGood2063Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time
Benzo(a)pyreneGood2015
Benzo(b)fluorantheneGood2015
Benzo(g-h-i)peryleneGood2015
Benzo(k)fluorantheneGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
Mercury and Its CompoundsGood2015
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
Anglian ChalkG71Nitrates Directive
River WensumUK0012647Special Area of ConservationNatural 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
WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/STIBBARD WATERCOURSE/LITTLE RYBURGH COMMON/ 212122009, 2010, 2013, 2011, 2014, 20122019, 2015, 20162019
R.WENSUM SWANTON MORLEY BRIDGE WEN1802009, 2010, 2011
WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/STIBBARD WATERCOURSE/STIBBARD , THE VALE/ 212112009, 2010, 2011, 2012
WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/STIBBARD WATERCOURSE/KETTLESTONE , D/S MERRYWEATHER HOUSE/ 212082009, 2010, 2013, 2011, 2012
COSTESSEY PITS INTAKE WEN235AA2009, 2010
R.WENSUM GREAT WITCHINGHAM BRIDGE WEN2002009, 2010, 2011
R.WENSUM TAVERHAM BRIDGE WEN2352009, 2010, 2011
OLD RAIL BR.ALDERFORD WEN2232009, 2010, 2011
R.WENSUM GREAT RYBURGH BRIDGE WEN0702013, 2009, 2012, 2014, 2010, 20112016
R.WENSUM SCULTHORPE MILL WEN0402013, 2009, 2012, 2014, 2010, 2011
BLACKWATER DRN.GT.WITCHNGHAM(R.WENSUM) WEN2102009, 2010
54953 549532015, 2016
WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/STIBBARD WATERCOURSE/STIBBARD , THE VALE NORTHEAST/ 212102009, 2010, 2013, 2011, 2012
KETTLESTONE STR. LANGER BR. (R.WENSUM) WEN06020142016, 2019, 2014, 20152019

Upstream water bodies

    Downstream water bodies