Blackwater (Test and Itchen) Water Body Good ecological status
Get Blackwater (Test and Itchen) data Attributes Water Body ID GB107042016791 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR SU2635521763 Catchment area 67.526 km2 Surveillance Water Body No Length 39.362 km Catchment area 6752.577 ha Classifications Classification Item 2019 2022 Ecological Good Good Biological quality elements High High Invertebrates High High Macrophytes and Phytobenthos Combined High High Macrophytes Sub Element High High Physico-chemical quality elements Good Good Acid Neutralising Capacity High High Ammonia (Phys-Chem) High High Dissolved oxygen Good Good Phosphate Good Good Temperature High High pH High High Hydromorphological Supporting Elements Supports good Supports good Hydrological Regime High Supports good Specific pollutants High High Arsenic High High Copper High High Iron High High Manganese High High Zinc High High Chemical Fail Does not require assessment Priority hazardous substances Fail Does not require assessment Benzo(a)pyrene 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 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 Good Does not require assessment Aldrin, Dieldrin, Endrin & Isodrin 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 Phosphate 2 2015 Moderate Very certain there is a problem Nickel and Its Compounds 2 2014 Fail 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 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
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 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 0 0 0 Sector under investigation 0 0 0 0 0 0 0 Total 0 0 0 0 0 0 0
Objectives Classification Item Status Year Reasons Ecological Good 2015 Biological quality elements Good 2015 Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2015 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 Arsenic High 2015 Copper High 2015 Iron High 2015 Manganese 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 (b) and (k) fluoranthene Good 2015 Benzo (ghi) perelyene and indeno (123-cd) pyrene Good 2015 Benzo(a)pyrene 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 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 Good 2015 Aldrin, Dieldrin, Endrin & Isodrin Good 2015 para - para DDT Good 2015
Protected areas PA Name Id Directive More information Hamble Estuary Eutrophic NVZ (TraC) ET3 Nitrates Directive The New Forest UK0012557 Special Area of Conservation Natural England New Forest UK11047 Ramsar Site 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 R BLACKWATER NUTSEY G0003989 2015, 2019, 2016, 2014, 2013 2019 RED LODGE TRIB G0004008 2016, 2014, 2019, 2015, 2013 2022, 2019 R BLACKWATER WELLOW G0003994 2016, 2014, 2019, 2013, 2015 2022, 2019 R BLACKWATER OWER G0003992 2022 SHOOTASH TRIBUTARY G0004007 2016, 2014, 2019, 2015, 2013 2022, 2019 43279 43279 2016, 2019, 2014, 2015 2019 153190 153190 2016, 2014, 2013, 2015