Ridgewood Stream Water Body

Moderate ecological status

Attributes

  • Water Body IDGB107041012630
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRTQ4871818707
  • Surveillance Water BodyNo
  • Catchment area10.867 km2
  • Length8.01 km
  • Catchment area1086.68 ha

Classifications

Classification Item20192022
EcologicalModerateModerate
Biological quality elementsModerateModerate
FishModerateModerate
InvertebratesGoodGood
Macrophytes and Phytobenthos CombinedModerateModerate
Phytobenthos Sub ElementModerateModerate
Physico-chemical quality elementsModerateModerate
Ammonia (Phys-Chem)HighHigh
Biochemical Oxygen Demand (BOD)HighHigh
Dissolved oxygenGoodGood
PhosphateModerateModerate
TemperatureHighHigh
pHHighHigh
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeSupports goodSupports good
MorphologySupports goodSupports good
Specific pollutantsHighHigh
TriclosanHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Benzo(a)pyreneGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
Mercury and Its CompoundsFail
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Tributyltin CompoundsGood
Priority substancesGoodDoes not require assessment
Cypermethrin (Priority)Good
FluorantheneGood
Other PollutantsDoes not require assessmentDoes not require assessment

Why do all water bodies have a chemical status of fail?

Investigations into classification status

Classification ElementCycleYearStatusOutcome
Macrophytes and Phytobenthos Combined22014ModerateQuite certain there is a problem
Ammonia (Phys-Chem)22013ModerateQuite certain there is a problem
Triclosan22015HighUncertain there is a problem
Dissolved oxygen22013BadQuite 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 TypeSWMIActivityCategoryClassification ElementMore information
RNAGPhysical modificationBarriers - ecological discontinuitySector under investigationFishDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RFDMethod Change (RFD Only)Not applicableNo sector responsibleFishDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryMacrophytes and Phytobenthos CombinedDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGDiffuse sourcePoor soil managementAgriculture and rural land managementPhosphateDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryFishDetails

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 issuePhysical modificationsPollution from waste waterPollution from towns, cities and transportChanges to the natural flow and level of waterInvasive non-native speciesPollution from rural areasPollution from abandoned mines
Agriculture and rural land management0000000
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport0000000
Water Industry0300000
Local & central government0000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation1000000
Total1300000

Objectives

Classification ItemStatusYearReasons
EcologicalModerate2015Disproportionately expensive: Disproportionate burdens;
Natural conditions: Ecological recovery time
Biological quality elementsGood2033Natural conditions: Ecological recovery time
FishGood2015
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2033Natural conditions: Ecological recovery time
Physico-chemical quality elementsModerate2015Disproportionately expensive: Disproportionate burdens
Ammonia (Phys-Chem)Good2021Disproportionately expensive: Disproportionate burdens
Dissolved oxygenGood2021Disproportionately expensive: Disproportionate burdens
PhosphateModerate2021Disproportionately expensive: Disproportionate burdens
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Not assessed2015
Specific pollutantsHigh2015
TriclosanHigh2015
ChemicalGood2063Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time
Benzo(a)pyreneGood2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
Tributyltin CompoundsGood2015
Priority substancesGood2015
Cypermethrin (Priority)Good2015
FluorantheneGood2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
River Uck, Ridgewood stream confluence to Ford NVZS521Nitrates Directive
River OuseSWSGZ4008Safeguard 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 SiteCycle 1Cycle 2Cycle 3
RIDGEWOOD STM U/S UCKFIELD STW F00023122010, 2009, 2014, 2013, 2011, 20122016, 2019, 2015, 2014, 20132019, 2022
RIDGEWOOD STREAM A26 ROAD BR F00023042009, 2014, 20132016, 2019, 2015, 2014, 20132019, 2022
D/S UCKFIELD STW F000230020092016, 2015, 20192019
43017 430172009, 2011, 2012, 2010
OUSE/OUSE TRIBUTARIES/RIVER UCK/RIDGEWOOD BRIDGE/ 105562009
161959 1619592014, 2015, 2016
OUSE/OUSE TRIBUTARIES/RIVER UCK/HONEY GREEN CARAVAN PARK/ 4978320142016, 2019, 2014, 20152019

Upstream water bodies

    Downstream water bodies