Wroxall Stream Water Body Poor ecological status
Attributes Water Body ID GB107101006210 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR SZ5500681946 Catchment area 1703.7 ha Length 7.723 km Catchment area 17.037 km2 Surveillance Water Body No Classifications Classification Item 2019 Ecological Poor Biological quality elements Poor Invertebrates Good Macrophytes and Phytobenthos Combined Poor Macrophytes Sub Element Poor Phytobenthos Sub Element Good Physico-chemical quality elements Moderate Ammonia (Phys-Chem) High Dissolved oxygen High Phosphate Poor Temperature High pH High Hydromorphological Supporting Elements Supports good Hydrological Regime Does not support good Morphology Supports good Chemical Fail Priority hazardous substances Fail Benzo(a)pyrene Good Dioxins and dioxin-like compounds Good Heptachlor and cis-Heptachlor epoxide Good Hexabromocyclododecane (HBCDD) Good Hexachlorobenzene Good Hexachlorobutadiene Good Mercury and Its Compounds Good Perfluorooctane sulphonate (PFOS) Good Polybrominated diphenyl ethers (PBDE) Fail Priority substances Good Cypermethrin (Priority) Good Fluoranthene Good Other Pollutants Does not require assessment
Why do all water bodies have a chemical status of fail?
Investigations into classification status Classification Element Cycle Year Status Outcome Macrophytes and Phytobenthos Combined 2 2015 Poor Very certain there is a problem Hydrological Regime 2 2015 Does Not Support Good Uncertain there is a problem Phosphate 2 2015 Poor Very 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 Type SWMI Activity Category Classification Element More information RNAG Point source Private Sewage Treatment Domestic General Public Macrophytes and Phytobenthos Combined Details RNAG Diffuse source Transport Drainage Urban and transport Macrophytes and Phytobenthos Combined Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Macrophytes and Phytobenthos Combined Details RNAG Point source Sewage discharge (continuous) Water Industry Macrophytes and Phytobenthos Combined Details RNAG Invasive non-native species Other riparian plants No sector responsible Macrophytes and Phytobenthos Combined Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Polybrominated diphenyl ethers (PBDE) Details RNAG Flow No further action (Flow is below the EFI but NOT causing an ecological failure) No sector responsible Hydrological Regime Details RNAG Flow Groundwater abstraction Water Industry Hydrological Regime Details RNAG Diffuse source Poor soil management Agriculture and rural land management Phosphate Details RNAG Diffuse source Poor soil management Agriculture and rural land management Phosphate Details RNAG Point source Sewage discharge (continuous) Water Industry Phosphate Details RNAG Point source Misconnections Domestic General Public Phosphate Details RNAG Point source Sewage discharge (intermittent) Water Industry Phosphate Details RNAG Point source Sewage discharge (continuous) Water Industry Phosphate Details
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 issue Physical modifications Pollution from waste water Pollution from towns, cities and transport Changes to the natural flow and level of water Invasive non-native species Pollution from rural areas Pollution from abandoned mines Agriculture and rural land management 0 0 0 0 0 1 0 Industry 0 0 0 0 0 0 0 Mining and quarrying 0 0 0 0 0 0 0 Navigation 0 0 0 0 0 0 0 Urban and transport 0 0 0 0 0 0 0 Water Industry 0 4 0 0 0 0 0 Local & central government 0 0 0 0 0 0 0 Domestic general public 0 0 0 0 0 0 0 Recreation 0 0 0 0 0 0 0 Waste treatment and disposal 0 0 0 0 0 0 0 Other 0 0 0 0 0 0 0 No sector responsible 0 0 0 0 1 0 0 Sector under investigation 0 0 0 0 0 0 0 Total 0 4 0 0 1 1 0
Objectives Classification Item Status Year Reasons Ecological Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Biological quality elements Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Physico-chemical quality elements Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Ammonia (Phys-Chem) Good 2015 Dissolved oxygen Good 2015 Phosphate Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Temperature Good 2015 pH Good 2015 Hydromorphological Supporting Elements Supports good 2015 Hydrological Regime Does not support good 2015 Disproportionately expensive: Unfavourable balance of costs and benefits Supporting elements (Surface Water) Not assessed 2015 Specific pollutants Not assessed 2015 Chemical Good 2063 Natural conditions: Chemical status recovery time Priority hazardous substances Good 2063 Natural conditions: Chemical status recovery time Benzo(a)pyrene Good 2015 Dioxins and dioxin-like compounds Good 2015 Heptachlor and cis-Heptachlor epoxide Good 2015 Hexabromocyclododecane (HBCDD) Good 2015 Hexachlorobenzene Good 2015 Hexachlorobutadiene Good 2015 Mercury and Its Compounds Good 2015 Perfluorooctane sulphonate (PFOS) Good 2015 Polybrominated diphenyl ethers (PBDE) Good 2063 Natural conditions: Chemical status recovery time Priority substances Good 2015 Cypermethrin (Priority) Good 2015 Fluoranthene Good 2015 Other Pollutants Does not require assessment 2015
Protected areas PA Name Id Directive More information Newtown harbour, Mediina Estuary and Eastern Yar Eutrophic NVZ (TraC) ET7 Nitrates Directive Eastern Yar (Lower) SWSGZ4318 Safeguard Zone Wroxall Stream NVZ S531 Nitrates Directive Isle Of Wight Downs UK0016254 Special Area of Conservation Natural England
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 Site Cycle 1 Cycle 2 Cycle 3 WROXALL STREAM BATHING BOURNE Y0004421 2014, 2009 2015, 2014, 2016, 2019 2019 WROXALL STREAM UPSTREAM OF STW Y0004424 2014, 2009 2015, 2014, 2016, 2019 2019 42804 42804 2010, 2011, 2014, 2009 2015, 2016, 2014 42805 42805 2010, 2011, 2014, 2009 2015, 2016, 2014, 2013