Bevern Stream Water Body Poor ecological status
Attributes Water Body ID GB107041012570 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR TQ3855215674 Catchment area 3735.21 ha Length 18.302 km Catchment area 37.352 km2 Surveillance Water Body No Classifications Classification Item 2019 2022 Ecological Moderate Poor Biological quality elements Moderate Poor Fish Moderate Moderate Invertebrates High High Macrophytes and Phytobenthos Combined Moderate Poor Macrophytes Sub Element Moderate Poor Phytobenthos Sub Element Moderate Moderate Physico-chemical quality elements Moderate Moderate Acid Neutralising Capacity High High Ammonia (Phys-Chem) High High Dissolved oxygen Good High Phosphate Poor Poor 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 Copper High High Iron High High Manganese High High Triclosan 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 Mercury and Its Compounds Fail Nonylphenol Good Perfluorooctane sulphonate (PFOS) Good Polybrominated diphenyl ethers (PBDE) Fail Priority substances Good Does not require assessment Cypermethrin (Priority) Good Fluoranthene Good Lead and Its Compounds Good Nickel and Its Compounds Good Other Pollutants Does not require assessment 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 Fish 2 2013 Poor Quite certain there is a problem Macrophytes and Phytobenthos Combined 2 2013 Poor Quite certain there is a problem Nickel and Its Compounds 2 2015 Good Uncertain there is a problem Lead and Its Compounds 2 2015 Good Uncertain there is a problem Cadmium and Its Compounds 2 2015 Good Uncertain there is a problem Triclosan 2 2015 High Uncertain 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 Diffuse source Poor nutrient management Agriculture and rural land management Phosphate Details RNAG Point source Sewage discharge (continuous) Water Industry Phosphate Details RFD High to Good deterioration, no action required (RFD only) Not applicable No sector responsible Dissolved oxygen Details RNAG Physical modification Barriers - ecological discontinuity Agriculture and rural land management Fish Details RNAG Natural Natural conditions - other No sector responsible Fish 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 Fish Details RNAG Point source Sewage discharge (continuous) Water Industry Macrophytes and Phytobenthos Combined Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Mercury and Its Compounds Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Polybrominated diphenyl ethers (PBDE) 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 3 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 0 0 0 Sector under investigation 0 0 0 0 0 0 0 Total 1 3 0 0 0 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 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 Acid Neutralising Capacity Good 2015 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 Supports good 2015 Supporting elements (Surface Water) Not assessed 2015 Specific pollutants High 2015 Copper High 2015 Iron High 2015 Manganese High 2015 Triclosan 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 Mercury and Its Compounds Good 2040 Natural conditions: Chemical status recovery time Nonylphenol 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 Lead and Its Compounds Good 2015 Nickel and Its Compounds Good 2015 Other Pollutants Does not require assessment 2015
Protected areas PA Name Id Directive More information River Ouse SWSGZ4008 Safeguard Zone
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 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/EAST CHILTINGTON CHURCH/ 38586 2013, 2012 R BEVERN NORTH BARNES FARM F0002241 2016, 2019 2019, 2022 BEVERN STREAM A275 ROAD BRIDGE F0002238 2010, 2013, 2009, 2011, 2014, 2012 2013, 2016, 2019, 2014, 2015 2019, 2022 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/PLUMPTON GREEN/ 10554 2009 BEVERN STREAM - CLAPPERS BR F0002234 2010, 2013, 2009, 2011, 2014, 2012 2013, 2016, 2015, 2019, 2014 2019, 2022 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/HIGHBRIDGE LANE D/S BRIDGE/ 5440 2010, 2013, 2011, 2009, 2012 2013, 2015 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/BRICK WORKS/ 10536 2009 43021 43021 2009, 2011, 2014, 2010 2016, 2015, 2014, 2013 2022 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/HIGHBRIDGE LANE U/S BRIDGE/ 44541 2013, 2014 2016, 2019, 2015 2022, 2019 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/CLAPPERS WEIR/ 7127 2010, 2011, 2009, 2014, 2012 2016, 2019, 2014, 2015 2022, 2019 OUSE/OUSE TRIBUTARIES/BEVERN STREAM/BEVERN BRIDGE/ 10535 2010, 2013, 2011, 2009, 2012 42039 42039 2009, 2011, 2014, 2010 2016, 2015, 2014