Black Water Water Body Good ecological status
Attributes Water Body ID GB107042016710 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR SU2526104942 Surveillance Water Body No Catchment area 20.742 km2 Length 8.307 km Catchment area 2074.16 ha Classifications Classification Item 2019 2022 Ecological Good Good Biological quality elements High High Invertebrates High High Macrophytes and Phytobenthos Combined High High Phytobenthos Sub Element High High Physico-chemical quality elements Good High Acid Neutralising Capacity High Ammonia (Phys-Chem) High High Biochemical Oxygen Demand (BOD) High Dissolved oxygen Good High Phosphate High High Temperature High High pH High High Hydromorphological Supporting Elements Supports good Supports good Hydrological Regime High High Morphology Supports good Supports good Chemical Fail Does not require assessment Priority hazardous substances Fail Does not require assessment 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 Fail Perfluorooctane sulphonate (PFOS) Good Polybrominated diphenyl ethers (PBDE) Fail Priority substances Good Does not require assessment Cypermethrin (Priority) Good Fluoranthene 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 No data to show
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 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 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 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 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 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 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 NEW FOREST/LYMINGTON/RHINEFIELD LIFE SITE/ 28823 2009 NEW FOREST/LYMINGTON/WOOLSFIELD HILL/ 10398 2009, 2012, 2010, 2011 NEW FOREST/LYMINGTON/FLETCHERS WATER/ 10526 2009, 2014, 2012, 2010, 2013, 2011 NEW FOREST/LYMINGTON/BLACKENSFORD LAWN/ 10394 2009, 2012, 2010, 2013, 2011 NEW FOREST/LYMINGTON/U/S BLACKENSFORD / BRATLEY CONFLUENCE/ 28700 2009, 2014, 2012, 2010, 2013, 2011 160878 160878 2014 2014, 2015, 2016, 2019 2022, 2019 NEW FOREST/LYMINGTON/BRATLEY WATER, ANDERWOOD/ 10524 2009, 2010 U/S WEAK RHINEFIELD BRIDGE,R.BLACKWATER G0006583 2014 2016, 2014, 2015 2022 NEW FOREST/LYMINGTON/HART HILL/ 10435 2009, 2012, 2010, 2011 NEW FOREST/LYMINGTON/DS BLACKWATER BRIDGE/ 10397 2009, 2012, 2010, 2011 NEW FOREST/LYMINGTON/DOG KENNEL BRIDGE/ 10523 2009, 2012, 2010, 2011 NEW FOREST/LYMINGTON/DAMES SLOUGH ENCLOSURE/ 10393 2009, 2012, 2010, 2011 NEW FOREST/LYMINGTON/D/S BLACKENSFORD / BRATLEY CONFLUENCE/ 34290 2012, 2010, 2013, 2011 NEW FOREST/LYMINGTON/RHINEFIELD/ 10527 2009, 2012, 2010, 2011 NEW FOREST/LYMINGTON/BURLEY LODGE/ 10448 2009, 2012, 2010, 2011