Roch (Source to Spodden) Water Body Moderate ecological status
Get Roch (Source to Spodden) data Attributes Water Body ID GB112069064720 Water Body Type River Hydromorphological designation heavily modified NGR SD9526216842 Catchment area 54.452 km2 Surveillance Water Body No Catchment area 5445.245 ha Length 25.742 km Classifications Classification Item 2019 2022 Ecological Moderate Biological quality elements Moderate Fish Moderate Invertebrates Good Macrophytes and Phytobenthos Combined Moderate Phytobenthos Sub Element Moderate Physico-chemical quality elements High Acid Neutralising Capacity High Ammonia (Phys-Chem) High Biochemical Oxygen Demand (BOD) High Dissolved oxygen High Phosphate High Temperature High pH High Supporting elements (Surface Water) Moderate Mitigation Measures Assessment Moderate or less Specific pollutants High Arsenic High Copper High Iron High Manganese High Zinc 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 Fail Does not require assessment Cypermethrin (Priority) Fail 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 Zinc 2 2016 High Quite certain there is a problem Nickel and Its Compounds 2 2015 Good Quite certain there is a problem Iron 2 2016 High Quite certain there is a problem Iron 2 2016 High 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 measures delivered to address reason, awaiting recovery Not applicable No sector responsible Polybrominated diphenyl ethers (PBDE) Details RNAG Point source Active mine Mining and quarrying Cadmium and Its Compounds Details RNAG Point source Abandoned mine Mining and quarrying Nickel and Its Compounds Details RNAG Point source Abandoned mine Mining and quarrying Zinc Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Mercury and Its Compounds Details RNAG Point source Abandoned mine Mining and quarrying Iron Details RNAG Physical modification Other (not in list, must add details in comments) Urban and transport Mitigation Measures Assessment Details RNAG Unknown (pending investigation) Unknown (pending investigation) Sector under investigation Macrophytes and Phytobenthos Combined Details RNAG Physical modification Other (not in list, must add details in comments) Local and Central Government Mitigation Measures Assessment Details RNAG Suspect data Not applicable No sector responsible Fish Details RNAG Physical modification Other (not in list, must add details in comments) Water Industry Mitigation Measures Assessment 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 1 0 0 0 0 0 0 Water Industry 1 0 0 0 0 0 0 Local & central government 1 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 3 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 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Fish Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Physico-chemical quality elements Good 2015 Acid Neutralising Capacity Good 2015 Ammonia (Phys-Chem) Good 2015 Dissolved oxygen Good 2015 Phosphate Good 2015 Temperature Good 2015 pH Good 2015 Hydromorphological Supporting Elements Not assessed 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 2021 Disproportionately expensive: Disproportionate burdens Arsenic High 2015 Copper High 2015 Iron High 2021 Disproportionately expensive: Disproportionate burdens Manganese High 2015 Zinc High 2015 Chemical Good 2063 Disproportionately expensive: Disproportionate burdens; 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 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Cypermethrin (Priority) Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens 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 South Pennine Moors Phase 2 UK9007022 Special Protection Area Natural England South Pennine Moors UK0030280 Special Area of Conservation Natural England Rochdale Canal UK0030266 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 MERSEY/ROCH/RORO10/ 38188 2013, 2014, 2012 2013, 2016, 2014, 2015 STANNEY BROOK ABOVE RIVER ROCH 88002181 2016, 2015 67579 67579 2014 2016, 2015, 2014, 2013 RIVER ROCH @ SMITHY BRIDGE 88002165 2010, 2013, 2011, 2009, 2014, 2012 2016, 2013, 2019, 2015, 2014 2019 MERSEY/ROCH/RORO05/ 7033 2010, 2009 LYDGATE BROOK U/S OCHRE 88002147 2010, 2013, 2011, 2009, 2014, 2012 2019 2019 MERSEY/ROCH/LYDGATE BROOK/ROLY05/ 7037 2010, 2009 MERSEY/ROCH/ROCHDALE CANAL/LOWER DURN (GARAGE)/ 40488 2013 MERSEY/ROCH/EALEES BROOK/ROEA05/ 7044 2010, 2013, 2014, 2009, 2012 2013, 2016, 2014, 2015 HEY BROOK ABOVE RIVER ROCH 88002184 2013, 2014 2013, 2016, 2014, 2015 MERSEY/ROCH/ROCHDALE CANAL/UPPER DURN (SCRAPYARD)/ 40487 2013 RIVER ROCH PTC STANNEY BK 88002167 2016, 2015 ASH BROOK AT SMALLBRIDGE 88002169 2010, 2013, 2011, 2009, 2014, 2012 2013, 2016, 2014, 2015 RIVER ROCH AT TIMBERCLIFFE 88002240 2013, 2009 CASTLE BROOK PTC LYDGATE BROOK 88002146 2010, 2013, 2011, 2009, 2014, 2012 67751 67751 2009, 2011, 2014, 2010 2016, 2014, 2015 LYDGATE BROOK UPSTREAM OF RIVER ROCH 88002148 2009, 2014 2016, 2019, 2014, 2015 2019 EALEES BROOK ABOVE RIVER ROCH 88002161 2010, 2013, 2011, 2009, 2014, 2012 69538 69538 2019 2019