Colne (d/s Doe's Corner) Water Body

Moderate ecological status

Attributes

  • Water Body IDGB105037041330
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRTL8931128412
  • Catchment area106.84 km2
  • Surveillance Water BodyYes
  • Length31.846 km
  • Catchment area10683.972 ha

Classifications

Classification Item20192022
EcologicalModerateModerate
Biological quality elementsModerateModerate
FishGoodGood
InvertebratesGoodGood
Macrophytes and Phytobenthos CombinedModerateModerate
Macrophytes Sub ElementModerateModerate
Phytobenthos Sub ElementModerateModerate
Physico-chemical quality elementsModerateModerate
Acid Neutralising CapacityHighHigh
Ammonia (Phys-Chem)HighHigh
Biochemical Oxygen Demand (BOD)High
Dissolved oxygenHighGood
PhosphatePoorPoor
TemperatureHighHigh
pHHighHigh
Supporting elements (Surface Water)ModerateModerate
Mitigation Measures AssessmentModerate or lessModerate or less
Specific pollutantsHighHigh
ArsenicHighHigh
ChlorothalonilHighHigh
CopperHighHigh
IronHighHigh
ManganeseHighHigh
PendimethalinHighHigh
ZincHighHigh
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
AnthraceneGood
Benzo(a)pyreneGood
Cadmium and Its CompoundsGood
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
HexachlorobenzeneGood
HexachlorobutadieneGood
HexachlorocyclohexaneGood
Mercury and Its CompoundsFail
Perfluorooctane sulphonate (PFOS)Fail
Polybrominated diphenyl ethers (PBDE)Fail
QuinoxyfenGood
Trifluralin (Priority hazardous)Good
Priority substancesGoodDoes not require assessment
1,2-dichloroethaneGood
AclonifenGood
AlachlorGood
AtrazineGood
BifenoxGood
CybutryneGood
Cypermethrin (Priority)Good
Dichlorvos (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
PentachlorophenolGood
SimazineGood
TerbutrynGood
TrichloromethaneGood
Other PollutantsGoodDoes not require assessment
Aldrin, Dieldrin, Endrin & IsodrinGood
Carbon TetrachlorideGood
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
RNAGPhysical modificationOther (not in list, must add details in comments)Urban and transportMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Water IndustryMitigation Measures AssessmentDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryMacrophytes and Phytobenthos CombinedDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Agriculture and rural land managementMitigation Measures AssessmentDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGDiffuse sourceTransport DrainageUrban and transportPhosphateDetails

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 management1000010
Industry0000000
Mining and quarrying0000000
Navigation0000000
Urban and transport1010000
Water Industry1200000
Local & central government1000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total4210010

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens;
Technically infeasible: No known technical solution is available
Biological quality elementsGood2027Disproportionately expensive: Disproportionate burdens;
Technically infeasible: No known technical solution is available
FishGood2015
InvertebratesGood2015
Macrophytes and Phytobenthos CombinedGood2027Disproportionately expensive: Disproportionate burdens;
Technically infeasible: No known technical solution is available
Physico-chemical quality elementsGood2027Technically infeasible: No known technical solution is available
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2027Technically infeasible: No known technical solution is available
TemperatureGood2015
pHGood2015
Hydromorphological Supporting ElementsNot assessed2015
Supporting elements (Surface Water)Good2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Mitigation Measures AssessmentGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Specific pollutantsHigh2015
ArsenicHigh2015
ChlorothalonilHigh2015
CopperHigh2015
IronHigh2015
ManganeseHigh2015
PendimethalinHigh2015
ZincHigh2015
ChemicalGood2063Natural 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
AnthraceneGood2015
Benzo (b) and (k) fluorantheneGood2015
Benzo(a)pyreneGood2015
Cadmium and Its CompoundsGood2015
Dioxins and dioxin-like compoundsGood2015
EndosulfanGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
HexachlorobenzeneGood2015
HexachlorobutadieneGood2015
HexachlorocyclohexaneGood2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
Perfluorooctane sulphonate (PFOS)Good2039Technically infeasible: No known technical solution is available
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
QuinoxyfenGood2015
Trifluralin (Priority hazardous)Good2015
Priority substancesGood2015
1,2-dichloroethaneGood2015
AclonifenGood2015
AlachlorGood2015
AtrazineGood2015
BifenoxGood2015
CybutryneGood2015
Cypermethrin (Priority)Good2015
Dichlorvos (Priority)Good2015
FluorantheneGood2015
Lead and Its CompoundsGood2015
Nickel and Its CompoundsGood2015
PentachlorophenolGood2015
SimazineGood2015
TerbutrynGood2015
TrichloromethaneGood2015
Other PollutantsGood2015
Aldrin, Dieldrin, Endrin & IsodrinGood2015
Carbon TetrachlorideGood2015
TrichloroethyleneGood2015
para - para DDTGood2015

Protected areas

PA NameIdDirectiveMore information
Sandlings and ChelmsfordG78Nitrates Directive
Colne (d/s Doe's Corner)UKGB105037041330Drinking Water Protected Area
Colne NVZS437Nitrates Directive
River ColneUKENRI68Urban Waste Water Treatment Directive
Colne & Ardleigh (SWSGZ1027)SWSGZ1027Safeguard 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
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/ELMS HALL/ 7842012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/SWANSCOMBE FARM/ 7802012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/CASTLE PARK/ 7672012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/CHALKNEY MILL/ 7812014, 2012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/FIDDLERS MILL/ 7762012, 2010, 2013, 2009, 2011
R.COLNE STATION RD BRIDGE C. ENGAINE CL04882011, 2014, 2012, 2009, 2010, 20132014, 2015, 2013, 2016, 20192022, 2019
54641 546412012, 2010, 2009, 2013, 20112019, 2015, 2013, 20162019
146522 1465222011, 2009, 2014, 2010, 20132014, 2013, 2016, 2015, 20192019
54646 546462012, 2009, 2013, 2011, 2014
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/EARLS COLNE MILL/ 7822012, 2010, 2013, 2009, 20112013
R.COLNE EAST MILLS INTAKE CL012011, 2013, 2014, 2010, 2012, 20092014, 2016, 2015, 2019, 20132022, 2019
54636 546362012, 2010, 2009, 2013, 2011, 20142016, 2015, 2013, 2014
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/FORDSTREET/ 7772014, 2012, 2010, 2013, 2009, 2011
54645 546452012, 2010, 2009, 2013, 2011, 20142019, 2015, 2013, 2016, 20142022, 2019
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/NORTH BRIDGE/ 7692014, 2012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE UPPER SUB CATCHMENT/RIVER COLNE UPPER/BOX MILL/ 7882014, 2012, 2010, 2013, 2009, 20112014, 2015, 2013, 2016, 20192022, 2019
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/CRICKET GROUND/ 7682014, 2012, 2010, 2013, 2009, 20112014, 2015, 2013, 2016, 20192022, 2019
COLNE CATCHMENT/RIVER COLNE UPPER SUB CATCHMENT/RIVER COLNE UPPER/HALSTEAD/ 7872012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/EARLS COLNE FGS/ 7832014, 2012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/U/S A12 BRIDGE/ 7722012, 2010, 2013, 2009, 2011
81001 810012012, 2010, 2009, 2013, 2011
R.COLNE LANGLEY MILL CL062011, 2014, 2012, 2009, 2010, 2013
R.COLNE LEXDEN BRIDGE CL01852022
54637 546372010, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/WAKES COLNE VIADUCT/ 7792014, 2012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/D/S NEW BRIDGE/ 7732014, 2012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/PEBMARSH BROOK/OVERSHOT MILL/ 5512009
R.COLNE DOES CORNER CL0720092022
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/COOKS MILL/ 7742014, 2012, 2010, 2013, 2009, 20112014, 2015, 2013, 2016, 20192022, 2019
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/BROOM HOUSE/ 7782014, 2012, 2010, 2013, 2009, 20112014, 2015, 2013, 2016, 20192019
R.COLNE EARLS COLNE RD.BR. CL042011, 2014, 2012, 2009, 2010, 2013
R.COLNE NEWBRIDGE WEST BERGHOLT CL02302011, 2014, 2012, 2009, 2010, 20132014, 2015, 2019, 2013, 20162022, 2019
149947 1499472011, 2009, 2014, 2010, 20132014, 2013, 2016, 2015, 20192019
92411 924112011, 2014, 20132014, 2013, 2016, 2015, 20192019
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/SPRING LANE/ 7712014, 2012, 2010, 2013, 2009, 20112014, 2015, 2013, 2016, 20192022, 2019
COLNE CATCHMENT/RIVER COLNE UPPER SUB CATCHMENT/RIVER COLNE UPPER/BLUE BRIDGE/ 7852014, 2012, 2010, 2013, 2009, 2011
COLNE CATCHMENT/RIVER COLNE LOWER SUB CATCHMENT/RIVER COLNE LOWER/BATHING POOL/ 7702012, 2010, 2013, 2009, 2011

Downstream water bodies