Teville Stream Water Body

Bad ecological status

Attributes

  • Water Body IDGB107041011940
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRTQ1657603718
  • Catchment area4646.269 ha
  • Length2.431 km
  • Catchment area46.463 km2
  • Surveillance Water BodyNo

Classifications

Classification Item2019
EcologicalBad
Biological quality elementsBad
FishBad
InvertebratesBad
Physico-chemical quality elementsModerate
Acid Neutralising CapacityHigh
Ammonia (Phys-Chem)Moderate
Dissolved oxygenBad
PhosphateModerate
TemperatureHigh
pHHigh
Hydromorphological Supporting ElementsSupports good
Hydrological RegimeDoes not support good
Supporting elements (Surface Water)Moderate
Mitigation Measures AssessmentModerate or less
Specific pollutantsHigh
CopperHigh
IronHigh
ManganeseHigh
ZincHigh
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
Mercury and Its CompoundsFail
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGood
Cypermethrin (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
Other PollutantsDoes not require assessment

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

Investigations into classification status

Classification ElementCycleYearStatusOutcome
pH22014ModerateQuite certain there is a problem
Ammonia (Phys-Chem)22015ModerateQuite certain there is a problem
Zinc22015HighUncertain there is a problem
Dissolved oxygen22014BadQuite 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
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RFDPoint sourceMisconnectionsIndustryPhosphateDetails
RFDPoint sourceMisconnectionsDomestic General PublicPhosphateDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Urban and transportMitigation Measures AssessmentDetails
RFDDiffuse sourceUrbanisation - urban developmentUrban and transportPhosphateDetails
RFDPhysical modificationUrbanisation - urban developmentUrban and transportInvertebratesDetails
RNAGPhysical modificationUrbanisation - urban developmentUrban and transportFishDetails
RNAGDiffuse sourceTransport DrainageUrban and transportDissolved oxygenDetails
RNAGDiffuse sourceTransport DrainageUrban and transportAmmonia (Phys-Chem)Details
RNAGPhysical modificationUrbanisation - transportUrban and transportFishDetails
RNAGPhysical modificationUrbanisation - urban developmentUrban and transportHydrological RegimeDetails
RNAGPhysical modificationBarriers - ecological discontinuityUrban and transportFishDetails
RNAGFlowGroundwater abstractionWater IndustryHydrological RegimeDetails
RNAGPoint sourceTrade/Industry dischargeIndustryFishDetails
RNAGPhysical modificationUrbanisation - urban developmentLocal and Central GovernmentHydrological RegimeDetails
RNAGInvasive non-native speciesOther plantsNo sector responsibleFishDetails
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 transport4020000
Water Industry0000000
Local & central government1000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000100
Sector under investigation0000000
Total5020100

Objectives

Classification ItemStatusYearReasons
EcologicalBad2015Disproportionately expensive: Disproportionate burdens;
Technically infeasible: No known technical solution is available
Biological quality elementsBad2015Technically infeasible: No known technical solution is available
FishBad2021Technically infeasible: No known technical solution is available
InvertebratesGood2015
Physico-chemical quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2027Disproportionately expensive: Disproportionate burdens
Dissolved oxygenGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
PhosphateGood2015
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeDoes not support good2015Technically infeasible: No known technical solution is available
Supporting elements (Surface Water)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
CopperHigh2015
IronHigh2015
ManganeseHigh2015
ZincHigh2015
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
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
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
Sussex ChalkG56Nitrates 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
BROOKLANDS PARK STREAM F00030282016, 2019, 20152019
ADUR/ADUR TRIBUTARIES/TEVILLE STREAM/WILLOWBROOK ROAD/ 365312013, 2011, 2014, 20122013, 2016, 2019, 2014, 20152019
EAST WORTHING ALLOTMENTS F001745620142014
145271 14527120142016, 2019, 2014, 20152019
ADUR/ADUR TRIBUTARIES/TEVILLE STREAM/ 283702009

Upstream water bodies

    Downstream water bodies