Holme Dub Water Body Moderate ecological status
Attributes Water Body ID GB102075073490 Water Body Type River Hydromorphological designation heavily modified NGR NY1824145275 Surveillance Water Body No Catchment area 23.727 km2 Length 15.151 km Catchment area 2372.68 ha Classifications Classification Item 2019 Ecological Moderate Biological quality elements Bad Fish Bad Invertebrates Poor Macrophytes and Phytobenthos Combined Good Phytobenthos Sub Element Good Physico-chemical quality elements Moderate Acid Neutralising Capacity High Ammonia (Phys-Chem) Moderate Dissolved oxygen Good Phosphate Poor Temperature High pH High Hydromorphological Supporting Elements Supports good Hydrological Regime High Supporting elements (Surface Water) Moderate Mitigation Measures Assessment Moderate or less Specific pollutants Moderate Copper High Iron High Manganese Moderate Zinc High Chemical Fail Priority hazardous substances Fail 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 Cypermethrin (Priority) Good Fluoranthene Good Lead and Its Compounds Good Nickel and Its Compounds 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 Invertebrates 2 2014 Moderate Very certain there is a problem Dissolved oxygen 2 2016 Bad 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 Physical modification Other (not in list, must add details in comments) Sector under investigation Mitigation Measures Assessment Details 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 Point source Private Sewage Treatment Urban and transport Phosphate Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Ammonia (Phys-Chem) Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Phosphate Details RFD Diffuse source Poor nutrient management Agriculture and rural land management Dissolved oxygen Details RNAG Point source Private Sewage Treatment Urban and transport Invertebrates Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Invertebrates Details RNAG Suspect data Not applicable No sector responsible Manganese 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 3 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 2 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 1 0 0 0 0 0 0 Total 1 0 2 0 0 3 0
Objectives Classification Item Status Year Reasons Ecological Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Biological quality elements Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Fish Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Invertebrates Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Macrophytes and Phytobenthos Combined Good 2015 Physico-chemical quality elements Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Acid Neutralising Capacity Good 2015 Ammonia (Phys-Chem) Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Dissolved oxygen Good 2015 Phosphate Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens 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 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Copper High 2015 Iron High 2015 Manganese High 2027 - Low confidence Disproportionately expensive: Disproportionate burdens 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 Cypermethrin (Priority) 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 No data to show
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 65230 65230 2014 2015, 2014, 2016, 2019 2019 SANDRAW BECK AT SCALES BROMFIELD 88005845 2014, 2012, 2013, 2009 2014, 2015, 2016, 2019, 2013 2019 RIVER WAVER/HOLME DUB/1345.00 LANGRIGG BECK (HOLME DUB), LANGRIGG BRIDGE/ 63124 2019 2019 65233 65233 2009