Stour (Lamarsh - R. Brett) Water Body

Moderate ecological status

Attributes

  • Water Body IDGB105036040942
  • Water Body TypeRiver
  • Hydromorphological designationheavily modified
  • NGRTL9603333217
  • Catchment area90.219 km2
  • Surveillance Water BodyNo
  • Length20.186 km
  • Catchment area9021.881 ha

Classifications

Classification Item2019
EcologicalModerate
Biological quality elementsGood
FishHigh
InvertebratesGood
Physico-chemical quality elementsModerate
Acid Neutralising CapacityHigh
Ammonia (Phys-Chem)High
Dissolved oxygenModerate
PhosphateModerate
TemperatureModerate
pHHigh
Supporting elements (Surface Water)Moderate
Mitigation Measures AssessmentModerate or less
Specific pollutantsHigh
ArsenicHigh
CopperHigh
IronHigh
ManganeseHigh
PendimethalinHigh
ZincHigh
ChemicalFail
Priority hazardous substancesFail
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 substancesGood
1,2-dichloroethaneGood
AclonifenGood
AlachlorGood
AtrazineGood
BifenoxGood
ChlorpyrifosGood
CybutryneGood
Cypermethrin (Priority)Good
Dichlorvos (Priority)Good
FluorantheneGood
Lead and Its CompoundsGood
Nickel and Its CompoundsGood
PentachlorophenolGood
SimazineGood
TerbutrynGood
TrichloromethaneGood
Other PollutantsGood
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
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationPerfluorooctane sulphonate (PFOS)Details
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGDiffuse sourcePoor nutrient managementAgriculture and rural land managementPhosphateDetails
RNAGDiffuse sourcePoor Livestock ManagementAgriculture and rural land managementPhosphateDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Local and Central GovernmentMitigation Measures AssessmentDetails
RNAGPoint sourceSewage discharge (continuous)Water IndustryPhosphateDetails
RNAGPhysical modificationOther (not in list, must add details in comments)RecreationMitigation Measures AssessmentDetails
RNAGPhysical modificationOther (not in list, must add details in comments)Agriculture and rural land managementMitigation Measures AssessmentDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsibleMercury and Its CompoundsDetails

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 transport0000000
Water Industry0100000
Local & central government1000000
Domestic general public0000000
Recreation1000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total3100010

Objectives

Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens;
Technically infeasible: Practical technical constraints prevent implementation of the measure by an earlier deadline
Biological quality elementsGood2015
FishGood2015
InvertebratesGood2015
Physico-chemical quality elementsGood2027Technically infeasible: Practical technical constraints prevent implementation of the measure by an earlier deadline
Acid Neutralising CapacityGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
PhosphateGood2027Technically infeasible: Practical technical constraints prevent implementation of the measure by an earlier deadline
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
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
Benzo (b) and (k) fluorantheneGood2015
Benzo (ghi) perelyene and indeno (123-cd) pyreneGood2015
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
ChlorpyrifosGood2015
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
Lower Stour NVZS424Nitrates Directive
River Stour / Stour BrookUKENRI74a_&_UKENRI74bUrban Waste Water Treatment Directive
Stour (Lamarsh - R. Brett)UKGB105036040942Drinking Water Protected Area
Stour & Abberton (SWSGZ1025)SWSGZ1025Safeguard Zone
Stour & Abberton (SWSGZ1024)SWSGZ1024Safeguard Zone
River StourUKENRI74aUrban Waste Water Treatment 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
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/WICK FARM/ 6962013, 2011, 2012, 2010
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/BURES BRIDGE A/ 7042013, 2011, 2014, 2012, 2010
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/BOXTED MILL/ 6952013, 2011, 2014, 2012, 20102015, 2013, 2016, 2014, 20192019
DITCH D/S GREAT HORKESLEY ST03552016, 2015
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/WISSINGTON/ 7012013, 2011, 2014, 2012, 20102015, 2013, 2016, 2014, 20192019
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/GARNONS FARM/ 7002013, 2011, 2012, 2010
54718 547182010, 2011, 20092015, 2013, 2016, 2019, 20142019
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/BURES MILL/ 7032013, 2011, 2014, 2012, 20102015, 2013, 2016, 2014, 20192019
R.STOUR LANGHAM INTAKE ST032013, 2011, 2009, 2010, 2012, 20142016, 2013, 2015, 2014, 20192019
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/TENDRING HALL/ 6972013, 2011, 2014, 2012, 20102015, 2013, 2016, 2014, 20192019
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/WORMINGFORD MILL/ 7022013, 2011, 2014, 2012, 20102015, 2013, 2016, 2014, 20192019
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/LANGHAM INTAKE/ 6942010
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/ANCHOR BRIDGE/ 6982013, 2011, 2014, 2012, 2010
R.STOUR BURES BR. ST052011, 2012, 2010, 20092016, 2015
54724 547242010, 2009
STOUR CATCHMENT/RIVER STOUR MIDDLE (IOH LOWER) SUB CATCHMENT/RIVER STOUR MIDDLE/WISTON MILL/ 6992013, 2011, 2014, 2012, 20102015, 2013, 2016, 2014, 20192019

Upstream water bodies

Downstream water bodies