Powdermill Reservoir Water Body Moderate ecological status
Get Powdermill Reservoir data Attributes Water Body ID GB30745011 Water Body Type Lake Hydromorphological designation heavily modified NGR TQ8001319709 Altitude 25 m Mean depth 4.1 m Surveillance Water Body No Surface area 0.237 km2 Surface area 23.655 ha Catchment area 510.75 ha Classifications Classification Item 2019 Ecological Moderate Biological quality elements Moderate Phytoplankton Moderate Physico-chemical quality elements Good Salinity High Total Nitrogen Good Total Phosphorus High Supporting elements (Surface Water) Moderate Expert Judgement Moderate Mitigation Measures Assessment Good Chemical Fail Priority hazardous substances Fail 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 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 Hydrological Regime 2 2014 Does Not Support Good
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 RNAG Diffuse source Poor nutrient management Agriculture and rural land management Phytoplankton Details RNAG Point source Sewage discharge (continuous) Water Industry Phytoplankton Details RNAG Diffuse source Poor Livestock Management Agriculture and rural land management Phytoplankton 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 2 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 1 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 1 0 0 0 2 0
Objectives Classification Item Status Year Reasons Ecological Good 2015 Biological quality elements Good 2015 Phytoplankton Good 2015 Physico-chemical quality elements 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 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Mitigation Measures Assessment Good 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 Fluoranthene Good 2015 Other Pollutants Does not require assessment 2015
Protected areas PA Name Id Directive More information Brede between Battle and Winchelsea S502 Nitrates Directive River Brede & Powdermill Reservoir SWSGZ4002 Safeguard Zone Powdermill Reservoir UKGB30745011 Drinking Water Protected Area
Monitoring sites which have been used to classify this water body Shows which sites were used for classification for which years within
each cycle.