North Low from Source to Berrington Burn Water Body

Moderate ecological status


  • Water Body IDGB103021073260
  • Water Body TypeRiver
  • Hydromorphological designationnot designated artificial or heavily modified
  • NGRNU0187244757
  • Catchment area34.236 km2
  • Surveillance Water BodyNo
  • Length15.378 km
  • Catchment area3423.589 ha


Classification Item20192022
Biological quality elementsModerateModerate
Macrophytes and Phytobenthos CombinedModerateModerate
Macrophytes Sub ElementModerateModerate
Phytobenthos Sub ElementGoodGood
Physico-chemical quality elementsHighHigh
Ammonia (Phys-Chem)HighHigh
Dissolved oxygenHighHigh
Hydromorphological Supporting ElementsSupports goodSupports good
Hydrological RegimeDoes not support goodSupports good
MorphologySupports goodSupports good
ChemicalFailDoes not require assessment
Priority hazardous substancesFailDoes not require assessment
Dioxins and dioxin-like compoundsGood
Heptachlor and cis-Heptachlor epoxideGood
Hexabromocyclododecane (HBCDD)Good
Mercury and Its CompoundsFail
Perfluorooctane sulphonate (PFOS)Good
Polybrominated diphenyl ethers (PBDE)Fail
Priority substancesGoodDoes not require assessment
Cypermethrin (Priority)Good
Other PollutantsDoes not require assessmentDoes not require assessment

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 modificationLand drainage - operational managementAgriculture and rural land managementMacrophytes and Phytobenthos CombinedDetails
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationMacrophytes and Phytobenthos CombinedDetails
RNAGmeasures delivered to address reason, awaiting recoveryNot applicableNo sector responsiblePolybrominated diphenyl ethers (PBDE)Details
RNAGUnknown (pending investigation)Unknown (pending investigation)Sector under investigationHydrological RegimeDetails
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 management0000000
Mining and quarrying0000000
Urban and transport0000000
Water Industry0000000
Local & central government0000000
Domestic general public0000000
Waste treatment and disposal0000000
No sector responsible0000000
Sector under investigation0000000


Classification ItemStatusYearReasons
EcologicalGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Biological quality elementsGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Macrophytes and Phytobenthos CombinedGood2027 - Low confidenceDisproportionately expensive: Disproportionate burdens
Physico-chemical quality elementsGood2015
Ammonia (Phys-Chem)Good2015
Dissolved oxygenGood2015
Hydromorphological Supporting ElementsSupports good2015
Hydrological RegimeSupports good2015
Supporting elements (Surface Water)Not assessed2015
Specific pollutantsNot assessed2015
ChemicalGood2063Natural conditions: Chemical status recovery time
Priority hazardous substancesGood2063Natural conditions: Chemical status recovery time
Dioxins and dioxin-like compoundsGood2015
Heptachlor and cis-Heptachlor epoxideGood2015
Hexabromocyclododecane (HBCDD)Good2015
Mercury and Its CompoundsGood2040Natural conditions: Chemical status recovery time
Perfluorooctane sulphonate (PFOS)Good2015
Polybrominated diphenyl ethers (PBDE)Good2063Natural conditions: Chemical status recovery time
Priority substancesGood2015
Cypermethrin (Priority)Good2015
Other PollutantsDoes not require assessment2015

Protected areas

PA NameIdDirectiveMore information
Holy IslandUKSW1Shellfish Water Directive
Berwick FellG97Nitrates 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
ALLERDENE BURN AT NABHILL RD BR, B6525 4100018920092016, 2015, 20192022, 2019
DEAN BURN AT ANCROFT 4100034820092016, 2015, 20192022, 2019
1639 16392014, 20092014, 2016, 2015
159359 15935920142019, 2015, 2014, 20162019

Upstream water bodies