Little Hallingbury Brook Water Body Poor ecological status
Get Little Hallingbury Brook data Attributes Water Body ID GB106038033250 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR TL5038217057 Catchment area 1109.26 ha Length 3.266 km Catchment area 11.093 km2 Surveillance Water Body No Classifications Classification Item 2019 2022 Ecological Poor Poor Biological quality elements Poor Poor Invertebrates Good Good Macrophytes and Phytobenthos Combined Poor Poor Macrophytes Sub Element Poor Poor Physico-chemical quality elements Moderate Moderate Ammonia (Phys-Chem) High High Dissolved oxygen High Moderate Phosphate Moderate Poor Temperature High High pH High High Hydromorphological Supporting Elements Supports good Supports good Hydrological Regime Supports good Supports good Morphology Supports good Supports good Specific pollutants High High Triclosan High High Chemical Fail Does not require assessment Priority hazardous substances Fail Does not require assessment Benzo(a)pyrene Good Benzo(b)fluoranthene Good Benzo(g-h-i)perylene Good Benzo(k)fluoranthene Good Dioxins and dioxin-like compounds Good Heptachlor and cis-Heptachlor epoxide Good Hexabromocyclododecane (HBCDD) Good Hexachlorobenzene Good Hexachlorobutadiene Good Mercury and Its Compounds Good Perfluorooctane sulphonate (PFOS) Good Polybrominated diphenyl ethers (PBDE) Fail Priority substances Good Does not require assessment Cypermethrin (Priority) Good Fluoranthene 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 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 Diffuse source Other (not in list, must add details in comments) Agriculture and rural land management Macrophytes and Phytobenthos Combined Details RNAG Physical modification Land use - arable Agriculture and rural land management Macrophytes and Phytobenthos Combined Details RNAG Diffuse source Transport Drainage Urban and transport Phosphate Details RNAG Point source Farm/site infrastructure Agriculture and rural land management Macrophytes and Phytobenthos Combined Details RNAG Point source Farm/site infrastructure Agriculture and rural land management Phosphate Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Polybrominated diphenyl ethers (PBDE) Details RNAG Diffuse source Other (not in list, must add details in comments) 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 1 0 0 0 0 2 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 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 1 0 0 0 0 2 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 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) Not assessed 2015 Specific pollutants High 2015 Triclosan High 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 Benzo(b)fluoranthene Good 2015 Benzo(g-h-i)perylene Good 2015 Benzo(k)fluoranthene 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 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 Other Pollutants Does not require assessment 2015
Protected areas PA Name Id Directive More information LEE NVZ S443 Nitrates Directive Lee SWSGZ4006 Safeguard Zone
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 STORT AT SAWBRIDGEWORTH PLER0151 2010, 2009 STORT AT BURNT MILL PLER0144 2010, 2009 LT HALLINGBURY BROOK AT GRINSTEAD LANE PLER0643 2013, 2014, 2012 2013, 2016, 2019, 2015, 2014 2022, 2019 STORT D/S OF RYE MEADS QUARRY PLER0454 2009 STORT AT SPELLBROOK WEIR PLER0152 2010, 2009 STORT AT ROYDON PLER0149 2010, 2009 154089 154089 2012, 2013, 2014, 2011 2015, 2016, 2014 STORT ABOVE ROYDON AT BRIGGENS PLER0257 2010, 2009 160626 160626 2014 2014, 2016, 2019, 2015 2022, 2019