Tidebrook Water Body Poor ecological status
Attributes Water Body ID GB107040013620 Water Body Type River Hydromorphological designation not designated artificial or heavily modified NGR TQ6392128993 Catchment area 2537.78 ha Length 6.991 km Catchment area 25.378 km2 Surveillance Water Body No Classifications Classification Item 2019 Ecological Poor Biological quality elements Poor Invertebrates High Macrophytes and Phytobenthos Combined Poor Macrophytes Sub Element Poor Physico-chemical quality elements Moderate Acid Neutralising Capacity High Ammonia (Phys-Chem) High Dissolved oxygen Good Phosphate Moderate Temperature High pH High Hydromorphological Supporting Elements Supports good Hydrological Regime Does not support good Morphology Supports good Specific pollutants High Copper High Iron High Zinc High Chemical Fail Priority hazardous substances Fail 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 Cypermethrin (Priority) Good Fluoranthene Good Lead and Its Compounds Good Nickel and Its Compounds 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 Macrophytes and Phytobenthos Combined 3 2019 Poor Certain there is not a problem Macrophytes and Phytobenthos Combined 2 2019 Poor Certain there is not 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 Private Sewage Treatment Domestic General Public Phosphate Details RNAG Diffuse source Poor nutrient management Agriculture and rural land management Phosphate Details RNAG Point source Sewage discharge (continuous) Water Industry Phosphate Details RFD High to Good deterioration, no action required (RFD only) Not applicable No sector responsible Dissolved oxygen Details RNAG Natural Drought No sector responsible Hydrological Regime Details RNAG Suspect data Not applicable No sector responsible Macrophytes and Phytobenthos Combined Details RNAG measures delivered to address reason, awaiting recovery Not applicable No sector responsible Mercury and Its Compounds 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 0 0 0 0 0 0 0 Domestic general public 0 0 1 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 1 1 0 0 1 0
Objectives Classification Item Status Year Reasons Ecological Good 2021 Disproportionately expensive: Disproportionate burdens Biological quality elements Good 2021 Disproportionately expensive: Disproportionate burdens Invertebrates Good 2015 Macrophytes and Phytobenthos Combined Good 2021 Disproportionately expensive: Disproportionate burdens Physico-chemical quality elements Good 2021 Disproportionately expensive: Disproportionate burdens Acid Neutralising Capacity Good 2015 Ammonia (Phys-Chem) Good 2015 Dissolved oxygen Good 2015 Phosphate Good 2021 Disproportionately expensive: Disproportionate burdens Temperature Good 2015 pH Good 2015 Hydromorphological Supporting Elements Supports good 2015 Hydrological Regime Does not support good 2015 Disproportionately expensive: Unfavourable balance of costs and benefits Supporting elements (Surface Water) Not assessed 2015 Specific pollutants High 2015 Copper High 2015 Iron High 2015 Zinc 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 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 Rother between Witherenden Hill and Etchingham NVZ S504 Nitrates Directive Tidebrook NVZ S507 Nitrates Directive Lower Rother from Robertsbridge to Scots Float and Darwell Reservoir SWSGZ4221 Safeguard Zone Rother from Coggins Mill Stream to Etchingham SWSGZ4009 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 TIDE BROOK U/S CONFLUENCE WITH R ROTHER E0001779 2014, 2013 2016, 2019, 2015, 2014, 2013 2019 41982 41982 2009, 2011, 2014, 2013, 2012, 2010 2016, 2015, 2014, 2013 D/S WASHWELL LANE STW E0001784 2009, 2012