Bristol Triassic Water Body

Good overall status

Attributes

  • Water Body IDGB40902G804800
  • Water Body TypeGroundwater Body
  • Hydromorphological designationnot applicable
  • NGRST4743869605
  • Groundwater area69430.454 ha
  • Surface area694.305 km2
  • Surveillance Water BodyNo

Classifications

Classification Item2019
Overall Water BodyGood
QuantitativeGood
Quantitative Status elementGood
Quantitative Dependent Surface Water Body StatusGood
Quantitative GWDTEs testGood
Quantitative Saline IntrusionGood
Quantitative Water BalanceGood
Chemical (GW)Good
Chemical Status elementGood
Chemical Dependent Surface Water Body StatusGood
Chemical Drinking Water Protected AreaGood
Chemical GWDTEs testGood
Chemical Saline IntrusionGood
General Chemical TestGood
Supporting elements (Groundwater)
Prevent and Limit ObjectiveActive
Trend AssessmentNo trend

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
RNAGDiffuse sourceOther (not in list, must add details in comments)Agriculture and rural land managementTrend AssessmentDetails

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 Industry0000000
Local & central government0000000
Domestic general public0000000
Recreation0000000
Waste treatment and disposal0000000
Other0000000
No sector responsible0000000
Sector under investigation0000000
Total0000000

Objectives

Classification ItemStatusYearReasons
Overall Water BodyGood2021Disproportionately expensive: Disproportionate burdens
QuantitativeGood2015
Quantitative Status elementGood2015
Quantitative Dependent Surface Water Body StatusGood2015
Quantitative GWDTEs testGood2015
Quantitative Saline IntrusionGood2015
Quantitative Water BalanceGood2015
Chemical (GW)Good2021Disproportionately expensive: Disproportionate burdens
Chemical Status elementGood2021Disproportionately expensive: Disproportionate burdens
Chemical Dependent Surface Water Body StatusGood2015
Chemical Drinking Water Protected AreaGood2021Disproportionately expensive: Disproportionate burdens
Chemical GWDTEs testGood2015
Chemical Saline IntrusionGood2015
General Chemical TestGood2015

Protected areas

PA NameIdDirectiveMore information
Severn EstuaryUK9015022Special Protection AreaNatural England
Severn EstuaryUK11081Ramsar SiteNatural England
Severn EstuaryUK0013030Special Area of ConservationNatural England
Chew Valley lake Eutrophic lake NVZEL109Nitrates Directive
Chew Valley LakeUK9010041Special Protection AreaNatural England
R Chew - source to conf Winford Bk NVZS557Nitrates Directive
Wellow Bk - conf Lyde Bk to conf Cam Bk NVZS566Nitrates Directive
Bristol TriassicUKGB40902G804800Drinking Water Protected Area
Blagdon Lake Eutrophic lake NVZEL112Nitrates Directive
Newton Bk - source to conf R Avon (Brist) NVZS558Nitrates Directive
Feltham BrookS570Nitrates 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

Upstream water bodies

    Downstream water bodies