Douglas - Upper Water Body Good ecological status
Attributes Water Body ID GB112070064850 Water Body Type River Hydromorphological designation heavily modified NGR SD6358612491 Catchment area 46.041 km2 Surveillance Water Body No Length 14.142 km Catchment area 4604.121 ha Classifications Classification Item 2019 2022 Ecological Moderate Good Biological quality elements Moderate Poor Fish Poor Invertebrates Moderate Moderate Macrophytes and Phytobenthos Combined High High Macrophytes Sub Element Moderate Phytobenthos Sub Element High High Physico-chemical quality elements Moderate Good Acid Neutralising Capacity High High Ammonia (Phys-Chem) Moderate High Dissolved oxygen High High Phosphate Poor Good Temperature High High pH High High Supporting elements (Surface Water) Good Good Mitigation Measures Assessment Good Good Specific pollutants 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 Di(2-ethylhexyl)phthalate (Priority hazardous) 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 Nonylphenol Good 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 Does not require assessment 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 Ammonia (Phys-Chem) 2 2016 Moderate Very 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) Water Industry Mitigation Measures Assessment Details RFD Point source Sewage discharge (continuous) Water Industry Ammonia (Phys-Chem) Details RNAG Point source Sewage discharge (continuous) Water Industry Invertebrates Details RNAG Point source Trade/Industry discharge Industry Invertebrates 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 Sewage discharge (intermittent) Water Industry Phosphate 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 1 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 1 0 0 0 0
Objectives Classification Item Status Year Reasons Ecological Good 2027 Disproportionately expensive: Disproportionate burdens Biological quality elements Good 2015 Disproportionately expensive: Disproportionate burdens Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2015 Physico-chemical quality elements Good 2027 Disproportionately expensive: Disproportionate burdens Acid Neutralising Capacity Good 2015 Ammonia (Phys-Chem) Good 2015 Dissolved oxygen Good 2015 Phosphate Good 2027 Disproportionately expensive: Disproportionate burdens Temperature Good 2015 pH Good 2015 Hydromorphological Supporting Elements Not assessed 2015 Supporting elements (Surface Water) Good 2021 Disproportionately expensive: Disproportionate burdens Mitigation Measures Assessment Good 2021 Disproportionately expensive: Disproportionate burdens Specific pollutants 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(a)pyrene Good 2015 Cadmium and Its Compounds Good 2015 Di(2-ethylhexyl)phthalate (Priority hazardous) 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 Nonylphenol Good 2015 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 PA Name Id Directive More information River Douglas NVZ S644 Nitrates Directive River Douglas UKENRI6 Urban Waste Water Treatment Directive
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 65815 65815 2009, 2011, 2014, 2010 2014, 2016, 2015 2022 RIVER RIBBLE/RIVER DOUGLAS/SQUIRREL LANE/ 8125 2011, 2014, 2012, 2010, 2009, 2013 2022 RIVER RIBBLE/RIVER DOUGLAS/GRIMEFORD BRIDGE/ 4080 2011, 2012, 2010, 2009 RIVER DOUGLAS AT SQUIRREL BRIDGE HORWICH 88003079 2014 PEARL BROOK BELOW HORWICH ETW 88003084 2009, 2014, 2013 2015, 2016 RIVER DOUGLAS ABOVE PEARL BROOK 88003080 2010, 2011, 2009, 2014, 2012, 2013 2014, 2019, 2016, 2015, 2013 2022, 2019 RIVER DOUGLAS AT JEPSON'S BRIDGE 88009654 2009, 2014 RIVER RIBBLE/RIVER DOUGLAS/U/S PINCROFT BRIDGE/ 8124 2011, 2014, 2012, 2010, 2009, 2013 RIVER RIBBLE/RIVER DOUGLAS/NEAR RIVINGTON AND BLACKROD SCHOOL/ 38287 2014, 2012, 2013 RIVER DOUGLAS AT GRIMEFORD BRIDGE 88003085 2010, 2013, 2009, 2011, 2014, 2012 2019, 2014, 2016, 2015, 2013 2019 RIVER RIBBLE/RIVER DOUGLAS/SWALLOWS RISE (STAR LANE)/ 8126 2011, 2012, 2010, 2009 RIVER RIBBLE/RIVER DOUGLAS/RIVER YARROW/THE GOIT/SITE 2 D/S BRINSCALL (MOOR ROAD)/ 22632 2012, 2010, 2013 69430 69430 2009, 2010, 2011 2019, 2015, 2013, 2016 2022, 2019 66303 66303 2009, 2011, 2010 68458 68458 2019 2022, 2019 PEARL BROOK U/S HORWICH FINAL 88003106 2010, 2009, 2011, 2014, 2012, 2013 2014, 2019, 2016, 2015, 2013 2019