Lanivet Stream Water Body Moderate ecological status
Attributes Water Body ID GB108049000030 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR SX0360864634 Catchment area 1239.379 ha Length 6.314 km Catchment area 12.394 km2 Surveillance Water Body No Classifications Classification Item 2019 2022 Ecological Moderate Moderate Biological quality elements Moderate Moderate Fish Good Good Invertebrates High High Macrophytes and Phytobenthos Combined Moderate Moderate Phytobenthos Sub Element Moderate Moderate Physico-chemical quality elements Good High Acid Neutralising Capacity High High Ammonia (Phys-Chem) Good High Dissolved oxygen High High Phosphate High High Temperature High High pH High High Hydromorphological Supporting Elements Supports good Supports good Hydrological Regime High High Morphology Supports good Supports good Specific pollutants Moderate Moderate Copper High High Iron High High Manganese High High Zinc Moderate Moderate 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 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 Copper 2 2013 Moderate Uncertain 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 measures delivered to address reason, awaiting recovery Not applicable No sector responsible Mercury and Its Compounds Details RNAG Suspect data Not applicable No sector responsible Macrophytes and Phytobenthos Combined Details RNAG Diffuse source Abandoned mine Mining and quarrying Zinc Details RNAG Point source Abandoned mine Mining and quarrying Zinc 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 2 Navigation 0 0 0 0 0 0 0 Urban and transport 0 0 0 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 0 0 0 0 0 0 0 Total 0 0 0 0 0 0 2
Objectives Classification Item Status Year Reasons Ecological Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Biological quality elements Good 2015 Fish Good 2015 Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2015 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 Supports good 2015 Hydrological Regime Supports good 2015 Supporting elements (Surface Water) Not assessed 2015 Specific pollutants High 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Copper High 2015 Iron High 2015 Manganese High 2015 Zinc High 2027 - Low confidence Disproportionately expensive: Disproportionate burdens 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 PA Name Id Directive More information Breney Common And Goss & Tregoss Moors UK0030098 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 DUNMERE STREAM PRIOR TO CAMEL 82521405 2009 RIVER CAMEL D/S SCARLETTS WELL STW 82528026 2009 RIVER CAMEL AT POLBROCK 82528005 2009 CAMEL/LANIVET STREAM/GOLDEN BANK/ 21991 2014, 2012, 2010, 2013, 2011, 2009 2019 2022, 2019 RIVER CAMEL D/S BODMIN (NANSTALLON) STW 82528024 2009 LANIVET STREAM AT NANSTALLON BRIDGE 82520904 2014 2014, 2016, 2019, 2015 2019, 2022 10062 10062 2014 2015, 2014, 2016 RIVER CAMEL AT DUNMERE BRIDGE 82528047 2009 RIVER CAMEL AT GROGLEY 82528011 2009