Tory Brook Water Body

Moderate ecological status

Attributes

  • Water Body IDGB108047003640
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRSX5760761146
  • Surveillance Water BodyNo
  • Catchment area25.687 km2
  • Catchment area2568.747 ha
  • Length16.088 km

Classifications

Classification Item20192022
EcologicalModerateModerate
Biological quality elementsModerateModerate
FishModerateModerate
InvertebratesGoodGood
Physico-chemical quality elementsHighHigh
pHHighHigh
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeSupports goodSupports good
Supporting elements (Surface Water)ModerateModerate
Mitigation Measures AssessmentModerate or lessModerate or less
Specific pollutantsHighHigh
CopperHighHigh
IronHighHigh
ManganeseHighHigh
TriclosanHighHigh
ZincHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Benzo(a)pyreneGood
Benzo(b)fluorantheneGood
Benzo(g-h-i)peryleneFail
Benzo(k)fluorantheneGood
Cadmium and Its CompoundsGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsFail
NonylphenolGood
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGoodDoes not require assessment
Cypermethrin (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
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
Zinc22014ModerateCertain there is not a problem
Phosphate22014ModerateCertain 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
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationBenzo(g-h-i)peryleneDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGPhysical modificationBarriers - ecological discontinuityIndustryFishDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGPoint sourceQuarryMining and quarryingFishDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Urban and transportMitigation Measures AssessmentDetails
RNAGDiffuse sourceAbandoned mineMining and quarryingFishDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGPoint sourceQuarryMining and quarryingFishDetails
RNAGPoint sourceQuarryMining and quarryingFishDetails
RNAGDiffuse sourceAbandoned mineMining and quarryingFishDetails
RNAGNaturalBarriers - ecological discontinuityNo sector responsibleFishDetails
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
Industry1000000
Mining and quarrying0030002
Navigation0000000
Urban and transport1000000
Water Industry0000000
Local & central government1000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total4030002

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027Disproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
FishGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
InvertebratesGood2015
Physico-chemical quality elementsGood2015
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2015
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Good2027Disproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027Disproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
CopperHigh2015
IronHigh2015
ManganeseHigh2015
TriclosanHigh2015
ZincHigh2015
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
Benzo(b)fluorantheneGood2015
Benzo(g-h-i)peryleneGood2033Technically infeasible: No known technical solution is available
Benzo(k)fluorantheneGood2015
Cadmium and Its CompoundsGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
NonylphenolGood2015
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
Priority substancesGood2015
Cypermethrin (Priority)Good2015
FluorantheneGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
Other PollutantsDoes not require assessment2015

Protected areas

No data to show

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
PLYM/TORY BROOK/MAIN TORY BROOK/NEWNHAM PARK/ 131862014, 2010, 20092016, 2014, 2019, 20152019
PLYM/TORY BROOK/MAIN TORY BROOK/PORTWORTHY/ 131852010, 2009
10758 107582009, 20142016, 2019, 2014, 20152019
PLYM/TORY BROOK/HOOKSBURY STREAM/HOOKSBURY STREAM UPSTREAM OLD LEAT/ 390682013, 2012
TORY BROOK AT PORTWORTHY BRIDGE 811118652013, 2009, 20122015, 2016
PLYM/TORY BROOK/MAIN TORY BROOK/PLYMPTON PLAYING FIELDS/ 73162013, 2011, 2014, 2012, 2010, 20092013, 2016, 2014, 2019, 20152019
WOTTER BROOK D/S LEE MOOR CP 38/6 811122202010, 2013, 2011, 2009, 201220192019
LONG BROOK U/S MARSH MILLS STW 8111033520142014, 2015, 2016
TORY BROOK AT MARSH MILLS BRIDGE 811118082012, 2010, 2013, 2011, 2014, 20092016, 2015, 2014, 2019, 20132019
10769 1076920142016, 2019, 2014, 20152019
PLYM/TORY BROOK/SMALLHANGER BROOK/FURZEACRE BRIDGE/ 225852013, 2012
PLYM/TORY BROOK/HOOKSBURY STREAM/HOOKSBURY STREAM DOWNSTREAM OLD LEAT/ 390672013, 2012
PLYM/TORY BROOK/SMALLHANGER BROOK/LITTLE DRAKELANDS/ 384662013, 2012

Upstream water bodies

    Downstream water bodies