POOLE HARBOUR Water Body

Moderate ecological status

Attributes

  • Water Body IDGB520804415800
  • Water Body TypeTransitional Water
  • Hydromorphological designationheavily modified
  • NGRSZ0148888754
  • Surface area3223.95 ha
  • Surface area32.239 km2
  • Surveillance Water BodyYes

Classifications

Classification Item20192022
EcologicalModerateModerate
Biological quality elementsModerateModerate
AngiospermsGoodGood
SaltmarshGoodGood
SeagrassGood
FishGoodGood
InvertebratesGoodGood
Infaunal Quality IndexGoodGood
MacroalgaeModerateModerate
Opportunistic MacroalgaeModerateModerate
PhytoplanktonGoodHigh
Physico-chemical quality elementsModerateModerate
Dissolved Inorganic NitrogenModerateModerate
Dissolved oxygenHighHigh
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeSupports goodSupports good
Supporting elements (Surface Water)ModerateModerate
Mitigation Measures AssessmentModerate or lessModerate or less
Specific pollutantsHighHigh
ArsenicHighHigh
ChlorothalonilHighHigh
Chromium (VI)HighHigh
CopperHighHigh
DiazinonHighHigh
DimethoateHighHigh
IronHighHigh
PendimethalinHighHigh
Un-ionised ammoniaHighHigh
ZincHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Benzo(a)pyreneGood
Benzo(b)fluorantheneGood
Benzo(g-h-i)peryleneGood
Benzo(k)fluorantheneGood
Cadmium and Its CompoundsGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
HexachlorocyclohexaneGood
Mercury and Its CompoundsFail
NonylphenolGood
PentachlorobenzeneGood
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Tributyltin CompoundsGood
Priority substancesGoodDoes not require assessment
AclonifenGood
AlachlorGood
BifenoxGood
CybutryneGood
Dichlorvos (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
OctylphenolGood
TerbutrynGood
TrichloromethaneGood
Other PollutantsDoes not require assessmentDoes 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
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGPhysical modificationOther (not in list, must add details in comments)Sector under investigationMitigation Measures AssessmentDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementMacroalgaeDetails
RNAGDiffuse sourceGroundwaterAgriculture and rural land managementDissolved Inorganic NitrogenDetails

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 management0000020
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 investigation1000000
Total1000020

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
Biological quality elementsGood2027 - Low confidenceDisproportionately expensive: Unfavourable balance of costs and benefits
AngiospermsGood2015
FishGood2015
InvertebratesGood2015
MacroalgaeGood2027 - Low confidenceDisproportionately expensive: Unfavourable balance of costs and benefits
PhytoplanktonGood2015
Physico-chemical quality elementsGood2027Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
Dissolved Inorganic NitrogenGood2027Disproportionately expensive: Disproportionate burdens;
Disproportionately expensive: Unfavourable balance of costs and benefits
Dissolved oxygenGood2015
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
ArsenicHigh2015
ChlorothalonilHigh2015
Chromium (VI)High2015
CopperHigh2015
DiazinonHigh2015
DimethoateHigh2015
IronHigh2015
PendimethalinHigh2015
Un-ionised ammoniaHigh2015
ZincHigh2015
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
Cadmium and Its CompoundsGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
HexachlorocyclohexaneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
NonylphenolGood2015
PentachlorobenzeneGood2015
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
QuinoxyfenGood2015
Tributyltin CompoundsGood2015
Priority substancesGood2015
AclonifenGood2015
AlachlorGood2015
BifenoxGood2015
CybutryneGood2015
Dichlorvos (Priority)Good2015
FluorantheneGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
OctylphenolGood2015
TerbutrynGood2015
TrichloromethaneGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
Poole HarbourET1Nitrates Directive
Poole HarbourUK11054Ramsar SiteNatural England
Dorset HeathsUK0019857Special Area of ConservationNatural England
Dorset Heaths (Purbeck & Wareham) & Studland DunesUK0030038Special Area of ConservationNatural England
Dorset HeathlandsUK11021Ramsar SiteNatural England
Poole Harbour WestUKSW54Shellfish Water Directive
Poole BayUKSW55Shellfish Water Directive
Poole HarbourUK9010111Special Protection AreaNatural England
Poole Harbour and Holes BayUKENCA117Urban Waste Water Treatment Directive
Poole Harbour Rockley SandsUK19450Bathing Water Directive
Poole Harbour SouthUKSW53Shellfish Water Directive
Poole Harbour LakeUK19400Bathing Water Directive
Poole Harbour NorthUKSW52Shellfish Water 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
POOLE HARBOUR TEN (HARBOUR ENTRANCE) 509501062009, 2010, 2011, 2013, 2012
POOLE HARBOUR 1 WAREHAM CHANNEL BUOY 82 509003872011, 2010, 2013, 20122019, 2015, 20162019
POOLE HARBOUR SIX (NEAR BUOY NO 36) 509501252011, 2010, 2013, 20122019, 2015, 20162019
POOLE HARBOUR TWELVE (SOUTH DEEP) 509001492011, 2010, 2013, 20122019, 2015, 20162019
POOLE HARBOUR FOUR (POOLE BRIDGE) 509502172011, 2013, 2012, 2010, 20092019, 2015, 20162019
POOLE HARBOUR THREE (HUTCHINS BUOY 71) 5095024920132019, 2015, 20162019

Downstream water bodies