Bourne Rivulet Water Body Moderate ecological status
Attributes Water Body ID GB107042022720 Water Body Type River Hydromorphological designation heavily modified NGR SU4113851199 Catchment area 131.133 km2 Surveillance Water Body No Length 16.026 km Catchment area 13113.312 ha Classifications Classification Item 2019 Ecological Moderate Biological quality elements High Invertebrates High Physico-chemical quality elements Good Ammonia (Phys-Chem) High Dissolved oxygen High Phosphate Good Temperature High pH High Hydromorphological Supporting Elements Supports good Hydrological Regime Supports good Supporting elements (Surface Water) Moderate Mitigation Measures Assessment Moderate or less Specific pollutants High Zinc High Chemical Fail Priority hazardous substances Fail Benzo(a)pyrene Good Benzo(b)fluoranthene Good Benzo(g-h-i)perylene Good Benzo(k)fluoranthene 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 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 Phosphate 2 2014 Moderate 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 measures delivered to address reason, awaiting recovery Not applicable No sector responsible Mercury and Its Compounds Details RNAG Physical modification Other (not in list, must add details in comments) Urban and transport Mitigation Measures Assessment Details RNAG Physical modification Other (not in list, must add details in comments) Local and Central Government Mitigation Measures Assessment Details RNAG Physical modification Other (not in list, must add details in comments) Recreation Mitigation Measures Assessment 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 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 1 0 0 0 0 0 0 Water Industry 0 0 0 0 0 0 0 Local & central government 1 0 0 0 0 0 0 Domestic general public 0 0 0 0 0 0 0 Recreation 1 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 3 0 0 0 0 0 0
Objectives Classification Item Status Year Reasons Ecological Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Biological quality elements Good 2015 Invertebrates Good 2015 Physico-chemical quality elements 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) Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Mitigation Measures Assessment Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Specific pollutants 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 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 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 Hamble Estuary Eutrophic NVZ (TraC) ET3 Nitrates Directive Hampshire Chalk G143 Nitrates Directive River Test SWSGZ4011 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 TEST/BOURNE RIVULET/100M D/S IRONBRIDGE/ 19510 2012, 2010, 2011, 2009 TEST/BOURNE RIVULET/THE ISLAND/ 13845 2014, 2012, 2010, 2011, 2009 TEST/BOURNE RIVULET/HURSTBOURNE/ 12676 2014, 2012, 2010, 2011, 2009 ST MARYBOURNE VIADUCT CHANNEL G0006488 2016 TEST/BOURNE RIVULET/DS THE PARALLEL/ 19512 2012, 2010, 2011, 2009 TEST AND ITCHEN/TEST/BOURNE RIVULET/DS CHAPMANS FORD FARM/ 12681 2009 TEST/BOURNE RIVULET/VITACRESS EASTERN FORK EFFLUENT CHANNEL/ 13814 2012, 2010, 2011, 2009 TEST/BOURNE RIVULET/VITACRESS WESTERN FORK/ 12678 2012, 2010, 2011, 2009 IRON BRIDGE G0004243 2012, 2011, 2010, 2013, 2009, 2014 2015, 2013, 2019, 2016, 2014 2019 TEST/BOURNE RIVULET/IRON BRIDGE/ 12677 2010, 2009 44146 44146 2012, 2010, 2013, 2009, 2011, 2014 2015, 2013, 2016, 2019, 2014 2019