Bollin Dean Mersey Upper Operational Catchment

About

This operational catchment runs from the edge of the Peak District National Park to the Manchester Ship Canal. It is largely rural area, which includes towns such as Macclesfield, Bollington, Knutsford and Wilmslow, as well as Manchester Airport.

The River Bollin upstream of Wilmslow, natural river processes at work

Classifications data for Bollin Dean Mersey Upper Operational Catchment

Number of water bodies

The number of water bodies in the river basin district. It shows whether these are natural, artificial (such as canals and reservoirs) or have been modified ('heavily modified') for particular uses.

Water body categoriesNaturalArtificialHeavily modifiedTotal
River, canals and surface water transfers1001121
Lake101112
Coastal0000
Estuarine0000
Groundwater0000
Total1102233

Ecological status for surface waters

Table summarises the current ecological status of surface water bodies. Water bodies are classified as being at high, good, moderate, poor or bad ecological status or potential.

Ecological status or potentialBadPoorModerateGoodHighTotal
Number of water bodies27240033
Number of water body elements10215342178304

Chemical status for surface waters

Table summarises the current chemical status of water bodies. These are classified as being at good or fail.

Chemical statusFailGoodTotal
Number of water bodies33033
Number of water body elements103433536

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

Quantitative status for groundwater

Table summarises the quantitative status of groundwater water bodies. These are classified as being at good or poor.

Quantitative statusPoorGoodTotal
Number of water bodies000
Number of water body elements000

Chemical status for groundwater

Table summarises the chemical status of groundwater water bodies. These are classified as being at good or poor.

Chemical statusPoorGoodTotal
Number of water bodies000
Number of water body elements000

Challenges data for Bollin Dean Mersey Upper Operational Catchment

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 issueChanges to the natural flow and level of waterInvasive non-native speciesPhysical modificationsPollution from abandoned minesPollution from rural areasPollution from towns, cities and transportPollution from waste water
Agriculture and rural land management00002500
Domestic general public0000001
Industry0000010
Local & central government0080000
Mining and quarrying0000000
Navigation0020000
No sector responsible0200000
Other0010000
Recreation0010000
Sector under investigation0030000
Urban and transport00900100
Waste treatment and disposal0000000
Water Industry10500024
Total12290251125

Objectives data for Bollin Dean Mersey Upper Operational Catchment

Ecological status or potential objectives for surface water bodies

Table summarises the ecological status and ecological potential objectives set for water bodies in the river basin management plan. Each water body is only counted once in this table. Each water body objective consists of a target status and a date when it was, or is expected to be, met.

StatusBadPoorModerateGoodHighTotal
By 2015004004
By 2021000101
By 202701522028
Total01923033

28 of the "by 2027" objectives are low confidence

Chemical status objectives for surface water bodies

Including those with less stringent objectives and extended deadlines

StatusFailGoodTotal
By 206303333
Total03333

0 of the "by 2027" objectives are low confidence

Quantitative status objectives for groundwater

Including those with less stringent objectives and extended deadlines

StatusPoor
GoodTotal
Total000

0 of the "by 2027" objectives are low confidence

Chemical status objectives for groundwater

Including those with less stringent objectives and extended deadlines

StatusPoor
GoodTotal
Total000