Douglas - Lower Water Body

Moderate ecological status

Attributes

  • Water Body IDGB112070064820
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRSD4863211345
  • Catchment area74.714 km2
  • Surveillance Water BodyYes
  • Length24.555 km
  • Catchment area7471.418 ha

Classifications

Classification Item20192022
EcologicalModerate
Biological quality elementsModerate
FishModerate
InvertebratesModerate
Macrophytes and Phytobenthos CombinedGood
Phytobenthos Sub ElementGood
Physico-chemical quality elementsModerate
Acid Neutralising CapacityHigh
Ammonia (Phys-Chem)Good
Dissolved oxygenHigh
PhosphateBad
TemperatureHigh
pHHigh
Hydromorphological Supporting ElementsSupports good
Hydrological RegimeSupports good
Supporting elements (Surface Water)Moderate
Mitigation Measures AssessmentModerate or less
Specific pollutantsHigh
ArsenicHigh
ChlorothalonilHigh
CopperHigh
DimethoateHigh
IronHigh
LinuronHigh
ManganeseHigh
PendimethalinHigh
PermethrinHigh
TriclosanHigh
ZincHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Benzo(a)pyreneGood
Benzo(b)fluorantheneGood
Benzo(g-h-i)peryleneFail
Benzo(k)fluorantheneGood
Cadmium and Its CompoundsGood
Di(2-ethylhexyl)phthalate (Priority hazardous)Good
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
HexachlorocyclohexaneGood
Mercury and Its CompoundsFail
NonylphenolGood
Perfluorooctane sulphonate (PFOS)Fail
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Tributyltin CompoundsGood
Priority substancesFailDoes not require assessment
1,2-dichloroethaneGood
AclonifenGood
AlachlorGood
BifenoxGood
Cypermethrin (Priority)Fail
Dichlorvos (Priority)Good
DiuronGood
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
PentachlorophenolGood
TerbutrynGood
TrichlorobenzenesGood
TrichloromethaneGood
Other PollutantsGoodDoes not require assessment
Aldrin, Dieldrin, Endrin & IsodrinGood
Carbon TetrachlorideGood
DDT TotalGood
TetrachloroethyleneGood
TrichloroethyleneGood
para - para DDTGood

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 TypeSWMIActivityCategoryClassification ElementMore information
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationBenzo(g-h-i)peryleneDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementInvertebratesDetails
RNAGPoint sourceMisconnectionsDomestic General PublicInvertebratesDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGPoint sourceSewage discharge (continuous)Water IndustryInvertebratesDetails
RNAGPoint sourcePrivate Sewage TreatmentUrban and transportInvertebratesDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGPoint sourceSewage discharge (continuous)Domestic General PublicPhosphateDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGPoint sourceSewage discharge (intermittent)Water IndustryPhosphateDetails

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 management0000020
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport0000000
Water Industry0300000
Local & central government1000000
Domestic general public0110000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total1410020

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
FishGood2015
InvertebratesGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Macrophytes and Phytobenthos CombinedGood2015
Physico-chemical quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
ArsenicHigh2015
ChlorothalonilHigh2015
CopperHigh2015
DimethoateHigh2015
IronHigh2015
LinuronHigh2015
ManganeseHigh2015
PendimethalinHigh2015
PermethrinHigh2015
TriclosanHigh2015
ZincHigh2015
ChemicalGood2063Disproportionately expensive: Disproportionate burdens;
Natural conditions: Chemical status recovery time;
Technically infeasible: No known technical solution is available
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time;
Technically infeasible: No known technical solution is available
Benzo (b) and (k) fluorantheneGood2015
Benzo (ghi) perelyene and indeno (123-cd) pyreneGood2015
Benzo(a)pyreneGood2015
Benzo(b)fluorantheneGood2015
Benzo(g-h-i)peryleneGood2033Technically infeasible: No known technical solution is available
Benzo(k)fluorantheneGood2015
Cadmium and Its CompoundsGood2015
Di(2-ethylhexyl)phthalate (Priority hazardous)Good2015
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
HexachlorocyclohexaneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
NonylphenolGood2015
Perfluorooctane sulphonate (PFOS)Good2039Technically infeasible: No known technical solution is available
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
QuinoxyfenGood2015
Tributyltin CompoundsGood2015
Priority substancesGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
1,2-dichloroethaneGood2015
AclonifenGood2015
AlachlorGood2015
BifenoxGood2015
Cypermethrin (Priority)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Dichlorvos (Priority)Good2015
DiuronGood2015
FluorantheneGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
PentachlorophenolGood2015
TerbutrynGood2015
TrichlorobenzenesGood2015
TrichloromethaneGood2015
Other PollutantsGood2015
Aldrin, Dieldrin, Endrin & IsodrinGood2015
Carbon TetrachlorideGood2015
DDT TotalGood2015
TetrachloroethyleneGood2015
TrichloroethyleneGood2015
para - para DDTGood2015

Protected areas

PA NameIdDirectiveMore information
River Douglas NVZS644Nitrates Directive
Leeds to Liverpool CanalUKENRI5Urban Waste Water Treatment Directive
RuffordG119Nitrates 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 SiteCycle 1Cycle 2Cycle 3
CALICO BROOK PTC ROAD 880031362009, 2011, 2013, 2014, 2012, 2010
67296 672962014, 2010, 20092016, 2019, 2014, 20152019
RIVER RIBBLE/RIVER DOUGLAS/POOLSTOCK BROOK/PTC DOUGLAS/ 39972011, 2012, 201020192019
67907 679072009
RIVER DOUGLAS AT TARLETON BRIDGE 8800318520142019, 2016, 2014, 20152019
RIVER DOUGLAS AT THREE BRIDGES PARBOLD 880031372009, 2011, 2014, 2012, 2010, 20132019, 2016, 2014, 2015, 20132019
RIVER DOUGLAS AT MARTLAND BRIDGE 880031312009, 2011, 2013, 2014, 2012, 2010
TARLETON RUNNER U/S MERE BROW STW 880105112009
RIVER DOUGLAS AT WANES BLADES BRIDGE 880031472011, 2009, 2013, 2010, 2012, 20142019, 2016, 2015, 2014, 20132019
RIVER RIBBLE/RIVER DOUGLAS/APPLEY BRIDGE/ 40942011, 2014, 20132019, 2014, 2015, 2013, 20162019
69717 697172010
RIVER DOUGLAS @ BECCONSALL LANE 880226872014
RIVER DOUGLAS U/S RUFFORD BRIDGE 880226862014, 2012, 20132015, 2016
68096 680962009
RUFFORD SLUICE AT WIGGINS LANE 880032152009
69695 696952009, 2014, 2012, 2010, 20132016, 2019, 2015, 2014, 20132019

Downstream water bodies