Teise and Lesser Teise Water Body

Moderate ecological status

Attributes

  • Water Body IDGB106040018260
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRTQ7327045853
  • Surveillance Water BodyNo
  • Length24.398 km
  • Catchment area34.159 km2
  • Catchment area3415.95 ha

Classifications

Classification Item20192022
EcologicalModerateModerate
Biological quality elementsPoorModerate
FishPoorModerate
InvertebratesHighHigh
Physico-chemical quality elementsModerateModerate
Acid Neutralising CapacityHigh
Ammonia (Phys-Chem)HighHigh
Dissolved oxygenHighHigh
PhosphateModerateModerate
TemperatureHighHigh
pHHighHigh
Supporting elements (Surface Water)ModerateModerate
Mitigation Measures AssessmentModerate or lessModerate or less
Specific pollutantsHighHigh
Chromium (VI)HighHigh
CopperHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
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 substancesGoodDoes not require assessment
Cypermethrin (Priority)Good
FluorantheneGood
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
Fish22019PoorVery certain there is a problem
Fish32019PoorVery 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
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor pesticide managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementPhosphateDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGPoint sourcePrivate Sewage TreatmentDomestic General PublicPhosphateDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Water IndustryMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGPhysical modificationBarriers - ecological discontinuityAgriculture and rural land managementFishDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Water IndustryMitigation Measures AssessmentDetails
RNAGPhysical modificationFlood protection - structuresAgriculture and rural land managementFishDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGOther pressuresFish stockingOtherFishDetails

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 management2000040
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport0000000
Water Industry2100000
Local & central government1000000
Domestic general public0010000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total5110040

Objectives

Classification ItemStatusYearReasons
EcologicalModerate2015Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits;
Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use
Biological quality elementsModerate2015Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use
FishModerate2015Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use
InvertebratesGood2015
Physico-chemical quality elementsModerate2015Disproportionately expensive: Unfavourable balance of costs and benefits
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateModerate2021Disproportionately expensive: Unfavourable balance of costs and benefits
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsNot assessed2015
Supporting elements (Surface Water)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
Chromium (VI)High2015
CopperHigh2015
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
Nickel and Its CompoundsGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
River Medway at MaidstoneSWSGZ4007Safeguard Zone
Lesser Teise and Bewl Water ReservoirSWSGZ4223Safeguard Zone
Lesser TeiseUKGB106040018260Drinking Water Protected Area

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
880YD D/S CHERRY STW-*CLOSED* E00006572009
MEDWAY/MEDWAY TRIBUTARIES/TEISE/SHEEPHURST LANE/ 136962013, 2014, 2012, 2010, 20092013, 2016, 2019, 2014, 20152019, 2022
44286 442862011, 2014, 2012, 2009, 20102014, 2015, 20162022
42139 421392011, 2014, 2012, 2009, 20102014, 2015, 2016
DS CHERRY GARDENS-*CLOSED* E00006552009
D/S NORTH ROAD STREAM SMALLBR E00006372012, 2010, 2013, 2011, 2014, 20092016, 2013, 2014, 2015, 20192022, 2019
42646 426462013, 20142013, 2014
LESSER TEISE DS CURTESDEN STRM E000055620092016, 2015, 20192022, 2019
195673 1956732022
440YD D/S NORTH RD SW SMITH LA E00006642009
MEDWAY/MEDWAY TRIBUTARIES/TEISE/SMALL BRIDGE D/S/ 719632022
MEDWAY/MEDWAY TRIBUTARIES/TEISE/CHAINHURST LESSER TEISE/ 442612013, 2014
440YD D/S HORSMONDEN STW E000063120092016, 20192019
MEDWAY/MEDWAY TRIBUTARIES/TEISE/SHARE FARM/ 137092013, 2011, 2014, 2012, 2010, 20092013, 2016, 2019, 2014, 20152019, 2022

Downstream water bodies