Chelt - source to M5 Water Body

Moderate ecological status

Attributes

  • Water Body IDGB109054032820
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRSO9492222111
  • Catchment area27.092 km2
  • Surveillance Water BodyNo
  • Length13.578 km
  • Catchment area2709.18 ha

Classifications

Classification Item2019
EcologicalModerate
Biological quality elementsGood
FishHigh
InvertebratesGood
Macrophytes and Phytobenthos CombinedGood
Macrophytes Sub ElementModerate
Phytobenthos Sub ElementGood
Physico-chemical quality elementsGood
Ammonia (Phys-Chem)High
Dissolved oxygenHigh
PhosphateGood
TemperatureGood
pHHigh
Hydromorphological Supporting ElementsSupports good
Hydrological RegimeSupports good
Supporting elements (Surface Water)Moderate
Mitigation Measures AssessmentModerate or less
Specific pollutantsHigh
PermethrinHigh
ChemicalFail
Priority hazardous substancesFail
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 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

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)Urban and transportMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RFDHigh to Good deterioration, no action required (RFD only)Not applicableNo sector responsiblePhosphateDetails
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 transport1000000
Water Industry0000000
Local & central government1000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total2000000

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Biological quality elementsGood2015
FishGood2015
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2015
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
PermethrinHigh2015
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
Cypermethrin (Priority)Good2015
FluorantheneGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
River Chelt NVZS580Nitrates 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
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/WAITROSE/ 564632015, 2016, 20192019
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/U/S DOWDESWELL RESERVOIR, D/S CULVERT/ 106072009
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/PRIOR'S NORTON, 20M D/S FOOT BRIDGE/ 303132013, 2011, 2014, 2012, 2010, 2009
52939 529392009, 20142015, 2016, 2014
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/SANDFORD PARK (D/S KEYNSHAM ROAD BRIDGE)/ 1040920092015, 2016, 20192019
53408 534082010, 2009, 20142015, 2016, 2014
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/NORTON MILL/ 71032009
RIVER CHELT PRINCESS ELIZABETH WAY 044656402011, 2014, 2012, 2013, 2010, 20092014, 2015, 2013, 2016, 20192019
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/BEHIND FIRE STATION (D/S OLD BATH RD)/ 104082009
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/NORTON COURT FARM/ 540232015, 2016, 20192019
RIVER CHELT - WITHY BRIDGE 044653802011, 2014, 2012, 2013, 2010, 2009
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/U/S BATH ROAD CULVERT/ 104102009
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/BODDINGTON BRIDGE/ 65712009
50591 505912009
52020 520202012, 2010, 2009, 2013, 2014, 20112015, 2016, 2013, 2014
RIVER CHELT BODDINGTON 044652202011, 2014, 2012, 2013, 2010, 20092014, 2015, 2013, 2016
CHELT RIVER SPRING BRIDGE 044680202009
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/U/S DOWDESWELL RESERVOIR/ 65202009
47049 470492011, 2014, 2012, 20102016, 2013, 2015, 2014
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/UCKINGTON/ 511842014
RIVER CHELT ARLE AVENUE 044657802011, 2012, 2010, 2009
RIVER SEVERN/SEVERN - DOWNSTREAM CONFL AVON/SEVERN - DOWNSTREAM CONF AVON (TRIBUTARIES)/RIVER CHELT/COX'S MEADOW/ 65682009

Upstream water bodies

    Downstream water bodies