Blackwater (Wendling Beck) Water Body Poor ecological status
Get Blackwater (Wendling Beck) data Attributes Water Body ID GB105034051050 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR TF9671619356 Catchment area 31.612 km2 Surveillance Water Body Yes Catchment area 3161.23 ha Length 10.191 km Classifications Classification Item 2019 2022 Ecological Poor Poor Biological quality elements Poor Poor Fish Moderate Moderate Invertebrates Moderate Moderate Macrophytes and Phytobenthos Combined Poor Poor Macrophytes Sub Element Poor Poor Physico-chemical quality elements Good Good Acid Neutralising Capacity High High Ammonia (Phys-Chem) High High Biochemical Oxygen Demand (BOD) High Dissolved oxygen High High Phosphate Good Good Temperature High High pH High High Hydromorphological Supporting Elements Supports good Supports good Hydrological Regime Supports good Supports good Morphology Supports good Supports good Specific pollutants High High Chlorothalonil High High Chromium (VI) High High Copper High High Iron High High Manganese High High Pendimethalin High High Zinc High High Chemical Fail Does not require assessment Priority hazardous substances Fail Does not require assessment Benzo(a)pyrene Good Benzo(b)fluoranthene Good Benzo(g-h-i)perylene Good Benzo(k)fluoranthene Good Cadmium and Its Compounds Good Dioxins and dioxin-like compounds Good Heptachlor and cis-Heptachlor epoxide Good Hexabromocyclododecane (HBCDD) Good Hexachlorobenzene Good Hexachlorobutadiene Good Hexachlorocyclohexane Good Mercury and Its Compounds Good Nonylphenol Good Pentachlorobenzene Good Perfluorooctane sulphonate (PFOS) Good Polybrominated diphenyl ethers (PBDE) Fail Quinoxyfen Good Tributyltin Compounds Good Priority substances Good Does not require assessment 1,2-dichloroethane Good Aclonifen Good Alachlor Good Benzene Good Bifenox Good Cybutryne Good Cypermethrin (Priority) Good Dichloromethane Good Dichlorvos (Priority) Good Fluoranthene Good Lead and Its Compounds Good Nickel and Its Compounds Good Terbutryn Good Trichloromethane Good Other Pollutants Good Does not require assessment Carbon Tetrachloride Good DDT Total Good para - para DDT Good
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 Quite 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 measures delivered to address reason, awaiting recovery Not applicable No sector responsible Polybrominated diphenyl ethers (PBDE) Details RNAG Invasive non-native species North american signal crayfish No sector responsible Invertebrates Details RNAG Suspect data Not applicable No sector responsible Fish Details RNAG Physical modification Land use - arable Agriculture and rural land management Macrophytes and Phytobenthos Combined 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 1 0 0 0 0 0 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 0 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 1 0 0 0 1 0 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 Fish Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Invertebrates Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Macrophytes and Phytobenthos Combined Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Physico-chemical quality elements Good 2015 Acid Neutralising Capacity Good 2015 Ammonia (Phys-Chem) Good 2015 Dissolved oxygen Good 2015 Phosphate Good 2015 Temperature Good 2015 pH Good 2015 Hydromorphological Supporting Elements Supports good 2015 Hydrological Regime Supports good 2015 Supporting elements (Surface Water) Not assessed 2015 Specific pollutants High 2015 Chlorothalonil High 2015 Chromium (VI) High 2015 Copper High 2015 Iron High 2015 Manganese High 2015 Pendimethalin High 2015 Zinc High 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 Benzo(b)fluoranthene Good 2015 Benzo(g-h-i)perylene Good 2015 Benzo(k)fluoranthene Good 2015 Cadmium and Its Compounds 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 Hexachlorocyclohexane Good 2015 Mercury and Its Compounds Good 2015 Nonylphenol Good 2015 Pentachlorobenzene Good 2015 Perfluorooctane sulphonate (PFOS) Good 2015 Polybrominated diphenyl ethers (PBDE) Good 2063 Natural conditions: Chemical status recovery time Quinoxyfen Good 2015 Tributyltin Compounds Good 2015 Priority substances Good 2015 1,2-dichloroethane Good 2015 Aclonifen Good 2015 Alachlor Good 2015 Benzene Good 2015 Bifenox Good 2015 Cybutryne Good 2015 Cypermethrin (Priority) Good 2015 Dichloromethane Good 2015 Dichlorvos (Priority) Good 2015 Fluoranthene Good 2015 Lead and Its Compounds Good 2015 Nickel and Its Compounds Good 2015 Terbutryn Good 2015 Trichloromethane Good 2015 Other Pollutants Good 2015 Carbon Tetrachloride Good 2015 DDT Total Good 2015 para - para DDT Good 2015
Protected areas PA Name Id Directive More information Anglian Chalk G71 Nitrates Directive River Wensum UKENRI73 Urban Waste Water Treatment Directive Blackwater (Wendling Beck) NVZ S822 Nitrates 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 Site Cycle 1 Cycle 2 Cycle 3 WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/BILNEY WATERCOURSE/EAST BILNEY , BILNEY COMMON/ 21203 2011, 2012, 2010, 2009 WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/BILNEY WATERCOURSE/EAST BILNEY , FOLLY LANE FORD/ 21202 2011, 2012, 2010, 2009 WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/BILNEY WATERCOURSE/EAST BILNEY , WHIN COVERT/ 21201 2011, 2012, 2010, 2009 54957 54957 2011, 2009, 2010, 2013, 2014, 2012 2016, 2014, 2015, 2013 WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/BILNEY WATERCOURSE/BEETLEY , BEETLEY COMMON/ 21206 2013, 2011, 2014, 2012, 2010, 2009 2013, 2016, 2014, 2019, 2015 2019 155170 155170 2013, 2011 WENSUM CATCHMENT/WENSUM/WENSUM TRIBS AND HWS/BILNEY WATERCOURSE/STANFIELD , STANFIELD COMMON/ 21204 2011, 2012, 2010, 2009 BLACK WATER D/S SPONG BRIDGE WEN111 2011, 2014, 2010, 2009, 2012, 2013 2019, 2014, 2016, 2015, 2013 2019, 2022 54947 54947 2009 155165 155165 2013, 2011 149970 149970 2010, 2009, 2013, 2011, 2014 2015, 2014, 2016, 2013