Cow Green Reservoir Water Body Moderate ecological status
Get Cow Green Reservoir data Attributes Water Body ID GB30328860 Water Body Type Lake Hydromorphological designation heavily modified NGR NY8060630115 Surveillance Water Body No Altitude 487 m Mean depth 13.113 m Surface area 2.936 km2 Surface area 293.567 ha Catchment area 5809.75 ha Classifications Classification Item 2019 2022 Ecological Moderate Moderate Biological quality elements High High Macrophytes and Phytobenthos Combined Macrophytes Sub Element Moderate Moderate Phytoplankton High High Physico-chemical quality elements Good Good Acid Neutralising Capacity High High Salinity High High Total Nitrogen High High Total Phosphorus Good Good Supporting elements (Surface Water) Moderate Moderate Expert Judgement Good Good Mitigation Measures Assessment Moderate or less Moderate or less Specific pollutants High High Copper 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 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 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 Physical modification Other (not in list, must add details in comments) Water Industry Mitigation Measures Assessment 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) Water Industry Mitigation Measures Assessment 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 2 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 2 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 Macrophytes and Phytobenthos Combined Not assessed 2015 Disproportionately expensive: Disproportionate burdens Phytoplankton Good 2015 Physico-chemical quality elements Good 2015 Acid Neutralising Capacity Good 2015 Dissolved oxygen Good 2015 Salinity Good 2015 Total Nitrogen Good 2015 Total Phosphorus Good 2015 Hydromorphological Supporting Elements Not assessed 2015 Supporting elements (Surface Water) Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Expert Judgement Good 2015 Mitigation Measures Assessment Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Specific pollutants High 2015 Copper 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 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 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 North Pennine Moors UK9006272 Special Protection Area Natural England Moor House-Upper Teesdale UK0014774 Special Area of Conservation 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 COW GREEN RESERVOIR 45100054 2009, 2014, 2012, 2013 2015, 2019, 2016, 2014, 2013 2019, 2022 91805 91805 2013, 2014, 2012 2016, 2015, 2014, 2013, 2019 2019 154816 154816 2016, 2019 2019