River Itchen Chalk Water Body

Poor overall status

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Attributes

Water Body IDGB40701G505000
Water Body TypeGroundwater Body
Hydromorphological designationnot applicable
NGRSU5931233002
Groundwater area45340.541 ha
Surface area453.405 km2
Surveillance Water BodyNo

Classifications

Classification Item	2019
Overall Water Body	Poor
Quantitative	Poor
Quantitative Status element	Poor
Quantitative Dependent Surface Water Body Status	Poor
Quantitative GWDTEs test	Good
Quantitative Saline Intrusion	Good
Quantitative Water Balance	Good
Chemical (GW)	Poor
Chemical Status element	Poor
Chemical Dependent Surface Water Body Status	Good
Chemical Drinking Water Protected Area	Poor
Chemical GWDTEs test	Good
Chemical Saline Intrusion	Good
General Chemical Test	Poor
Supporting elements (Groundwater)
Prevent and Limit Objective	Active
Trend Assessment	Upward trend

Why do all water bodies have a chemical status of fail?

Investigations into classification status

Classification Element	Cycle	Year	Status	Outcome
Trend Assessment	2	2015	Upward trend
General Chemical Test	2	2015	Poor

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 Type	SWMI	Activity	Category	Classification Element	More information
RNAG	Flow	Groundwater abstraction	Water Industry	Quantitative Dependent Surface Water Body Status	Details
RNAG	Diffuse source	Poor nutrient management	Agriculture and rural land management	Chemical Drinking Water Protected Area	Details
RNAG	Diffuse source	Poor nutrient management	Agriculture and rural land management	General Chemical Test	Details
RNAG	Diffuse source	Poor nutrient management	Agriculture and rural land management	Trend Assessment	Details

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 issue	Physical modifications	Pollution from waste water	Pollution from towns, cities and transport	Changes to the natural flow and level of water	Invasive non-native species	Pollution from rural areas	Pollution from abandoned mines
Agriculture and rural land management	0	0	0	0	0	2	0
Industry	0	0	0	0	0	0	0
Mining and quarrying	0	0	0	0	0	0	0
Navigation	0	0	0	0	0	0	0
Urban and transport	0	0	0	0	0	0	0
Water Industry	0	0	0	0	0	0	0
Local & central government	0	0	0	0	0	0	0
Domestic general public	0	0	0	0	0	0	0
Recreation	0	0	0	0	0	0	0
Waste treatment and disposal	0	0	0	0	0	0	0
Other	0	0	0	0	0	0	0
No sector responsible	0	0	0	0	0	0	0
Sector under investigation	0	0	0	0	0	0	0
Total	0	0	0	0	0	2	0

Objectives

Classification Item	Status	Year	Reasons
Overall Water Body	Good	2060	Disproportionately expensive: Disproportionate burdens; Natural conditions: Groundwater status recovery time
Quantitative	Good	2027 - Low confidence	Disproportionately expensive: Disproportionate burdens
Quantitative Status element	Good	2027 - Low confidence	Disproportionately expensive: Disproportionate burdens
Quantitative Dependent Surface Water Body Status	Good	2027 - Low confidence	Disproportionately expensive: Disproportionate burdens
Quantitative GWDTEs test	Good	2015
Quantitative Saline Intrusion	Good	2015
Quantitative Water Balance	Good	2021	Disproportionately expensive: Disproportionate burdens
Chemical (GW)	Good	2060	Natural conditions: Groundwater status recovery time
Chemical Status element	Good	2060	Natural conditions: Groundwater status recovery time
Chemical Dependent Surface Water Body Status	Good	2015
Chemical Drinking Water Protected Area	Good	2060	Natural conditions: Groundwater status recovery time
Chemical GWDTEs test	Good	2015
Chemical Saline Intrusion	Good	2015
General Chemical Test	Good	2060	Natural conditions: Groundwater status recovery time

Protected areas

PA Name	Id	Directive	More information
Hamble Estuary Eutrophic NVZ (TraC)	ET3	Nitrates Directive
North Wey (Alton to Tilford) NVZ	S678	Nitrates Directive
Kingsclere and Greywell	G145	Nitrates Directive
Hampshire Chalk	G143	Nitrates Directive
R. Meon NVZ	S527	Nitrates Directive
Upper Hamble NVZ	S810	Nitrates Directive
River Itchen Chalk	UKGB40701G505000	Drinking Water Protected Area
Nun's Walk Stream NVZ	S812	Nitrates Directive
Bow Lake NVZ	S811	Nitrates Directive
River Itchen	UK0012599	Special Area of Conservation	Natural England
TWYFORD	GWSGZ0153	Safeguard Zone
Winchester	GWSGZ0304	Safeguard Zone
Itchen Groundwater	GWSGZ0148	Safeguard 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.

River Itchen Chalk Water Body

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Related links

Attributes

Classifications

Investigations into classification status

Reasons for not achieving good (RNAG) and reasons for deterioration (RFD)

Reasons for not achieving good status by business sector

Objectives

Protected areas

Monitoring sites which have been used to classify this water body

Upstream water bodies

Downstream water bodies

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River Itchen Chalk Water Body

Get River Itchen Chalk data

Related links

Attributes

Classifications

Investigations into classification status

Reasons for not achieving good (RNAG) and reasons for deterioration (RFD)

Reasons for not achieving good status by business sector

Objectives

Protected areas

Monitoring sites which have been used to classify this water body

Upstream water bodies

Downstream water bodies