Lark - Fynn (d/s confluence) Water Body Moderate ecological status
Get Lark - Fynn (d/s confluence) data Attributes Water Body ID GB105035040300 Water Body Type River Hydromorphological designation heavily modified NGR TM2468847819 Catchment area 8.733 km2 Surveillance Water Body No Length 2.024 km Catchment area 873.275 ha Classifications Classification Item 2019 Ecological Moderate Biological quality elements Moderate Fish Moderate Invertebrates Good Macrophytes and Phytobenthos Combined High Macrophytes Sub Element Moderate Phytobenthos Sub Element High Physico-chemical quality elements Moderate Ammonia (Phys-Chem) High Dissolved oxygen Good Phosphate Moderate Temperature High pH High Hydromorphological Supporting Elements Supports good Hydrological Regime Supports good Supporting elements (Surface Water) Moderate Mitigation Measures Assessment Moderate or less 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 Cypermethrin (Priority) Good Fluoranthene Good Other Pollutants Does not require assessment
Why do all water bodies have a chemical status of fail?
Investigations into classification status No data to show
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 Point source Sewage discharge (continuous) Water Industry Phosphate Details RNAG Other pressures Saline or other intrusion Other Fish 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 Diffuse source Transport Drainage Urban and transport Phosphate Details RNAG Physical modification Other (not in list, must add details in comments) Local and Central Government Mitigation Measures Assessment Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Phosphate Details RNAG Diffuse source Poor Livestock Management Agriculture and rural land management 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 1 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 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 1 1 0 0 0 1 0
Objectives Classification Item Status Year Reasons Ecological Moderate 2015 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 2015 Physico-chemical quality elements Moderate 2015 Disproportionately expensive: Disproportionate burdens Ammonia (Phys-Chem) Good 2015 Dissolved oxygen Good 2015 Phosphate Moderate 2021 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 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 Cypermethrin (Priority) Good 2015 Fluoranthene Good 2015 Other Pollutants Does not require assessment 2015
Protected areas PA Name Id Directive More information Sandlings and Chelmsford G78 Nitrates Directive Deben Estuary UK9009261 Special Protection Area Natural England Deben Estuary UK11017 Ramsar Site Natural England Lark/Fynn NVZ S407 Nitrates 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 R.FYNN MARTLESHAM BRIDGE FYN070 2009, 2014, 2012, 2013 2014, 2015, 2013, 2016 160495 160495 2014 2016, 2015, 2014 DEBEN CATCHMENT/FYNN & LARK SUB CATCHMENT/RIVER FYNN/MARTLESHAM BRIDGE/ 615 2011, 2014, 2012, 2010, 2009, 2013 2014, 2015, 2013, 2016, 2019 2019 54850 54850 2009, 2014 2015, 2016, 2014 DEBEN CATCHMENT/FYNN & LARK SUB CATCHMENT/RIVER FYNN/SPECIAL SURVEY MB/ 31817 2009