Boldings Brook Water Body Poor ecological status
Attributes Water Body ID GB107041012910 Water Body Type River Hydromorphological designation heavily modified NGR TQ1815832727 Catchment area 32.604 km2 Surveillance Water Body No Length 11.062 km Catchment area 3260.37 ha Classifications Classification Item 2019 Ecological Poor Biological quality elements Poor Fish Moderate Invertebrates Good Macrophytes and Phytobenthos Combined Poor Phytobenthos Sub Element Poor Physico-chemical quality elements Moderate Ammonia (Phys-Chem) High Dissolved oxygen Moderate 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 Classification Element Cycle Year Status Outcome Fish 2 2014 Bad Very certain there is a problem Phosphate 2 2015 Moderate Very certain there is a problem Macrophytes and Phytobenthos Combined 2 2015 Poor 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 RFD Suspect data Not applicable No sector responsible Dissolved oxygen Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Mercury and Its Compounds Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Phosphate Details RNAG Point source Sewage discharge (continuous) Water Industry Phosphate Details RNAG Physical modification Other (not in list, must add details in comments) Urban and transport Mitigation Measures Assessment Details RNAG Point source Sewage discharge (continuous) Water Industry Macrophytes and Phytobenthos Combined 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 0 2 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 1 2 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 2015 Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Physico-chemical quality elements Good 2027 - Low confidence Disproportionately expensive: Disproportionate burdens Ammonia (Phys-Chem) Good 2015 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 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 Arun SWSGZ4317 Safeguard Zone River Arun (u/s Pallingham) NVZ S523 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 ARUN TRIB FARTHINGS BRIDGE F0003252 2009, 2014 2019, 2015, 2016, 2014 2019 42715 42715 2009, 2010, 2014 2015, 2016, 2014 ARUN/ARUN TRIBUTARIES/BOLDINGS BROOK/D/S FARTHING BRIDGE SQ/ 16761 2010, 2009, 2011 ARUN/ARUN TRIBUTARIES/BOLDINGS BROOK/U/S FARTHING BRIDGE/ 48203 2014 2015, 2016, 2019 2019 ARUN/ARUN TRIBUTARIES/BOLDINGS BROOK/REDFORD AVENUE/ 48363 2014 2015, 2016, 2019, 2014 2019