Isle of Wight Management Catchment
About
Every year one million holiday-makers are attracted to the Isle Of Wights dramatic coastline and chalk downs. These visitors, the resident population as well as intense agriculture and horticulture are putting pressure on the islands water quality and quantity. Even though all homes have been metered since the late 1980s and average consumption is low, over a quarter of the islands consumption needs to be piped from Hampshire. Most water is abstracted from the aquifers of the central ridge and southern downs, and the greensand of the south east. Water quality problems inland, in estuaries and along the coast are caused by large numbers of domestic septic tanks, pressure on the sewage system from rural and urban areas, and fertilizer and pesticide run-off from farmland. Over 65% of the catchment is farmed and more than half of this is designated as an Area of Outstanding Natural Beauty. The Medina, Eastern Yar and smaller rivers on the island flow north into the Solent across this intensively managed chalk, greensand and clay except for the unusual chine gullies on the south west coast. Most of the rivers have been dredged and straightened for land drainage, railway lines, growing towns, or flood defence, and some have become silted-up with sandy soils washed from fields in the catchment and unstable river banks.
Classifications data for Isle of Wight Management 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 categories | Natural | Artificial | Heavily modified | Total |
---|---|---|---|---|
River, canals and surface water transfers | 2 | 0 | 8 | 10 |
Lake | 0 | 0 | 0 | 0 |
Coastal | 0 | 0 | 0 | 0 |
Estuarine | 0 | 0 | 0 | 0 |
Groundwater | 0 | 0 | 0 | 0 |
Total | 2 | 0 | 8 | 10 |
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 potential | Bad | Poor | Moderate | Good | High | Total |
---|---|---|---|---|---|---|
Number of water bodies | 0 | 1 | 9 | 0 | 0 | 10 |
Number of water body elements | 0 | 4 | 11 | 13 | 49 | 77 |
Chemical status for surface waters
Table summarises the current chemical status of water bodies. These are classified as being at good or fail.
Chemical status | Fail | Good | Total |
---|---|---|---|
Number of water bodies | 10 | 0 | 10 |
Number of water body elements | 12 | 98 | 110 |
Quantitative status for groundwater
Table summarises the quantitative status of groundwater water bodies. These are classified as being at good or poor.
Quantitative status | Poor | Good | Total |
---|---|---|---|
Number of water bodies | 0 | 0 | 0 |
Number of water body elements | 0 | 0 | 0 |
Chemical status for groundwater
Table summarises the chemical status of groundwater water bodies. These are classified as being at good or poor.
Chemical status | Poor | Good | Total |
---|---|---|---|
Number of water bodies | 0 | 0 | 0 |
Number of water body elements | 0 | 0 | 0 |
Challenges data for Isle of Wight Management 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 issue | Changes to the natural flow and level of water | Invasive non-native species | Physical modifications | Pollution from abandoned mines | Pollution from rural areas | Pollution from towns, cities and transport | Pollution from waste water |
---|---|---|---|---|---|---|---|
Agriculture and rural land management | 0 | 0 | 0 | 0 | 3 | 0 | 0 |
Domestic general public | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Industry | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Local & central government | 0 | 0 | 6 | 0 | 0 | 0 | 0 |
Mining and quarrying | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Navigation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
No sector responsible | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Other | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Recreation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Sector under investigation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Urban and transport | 0 | 0 | 4 | 0 | 0 | 3 | 0 |
Waste treatment and disposal | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Water Industry | 1 | 0 | 0 | 0 | 0 | 0 | 8 |
Total | 1 | 1 | 11 | 0 | 3 | 3 | 8 |
Objectives data for Isle of Wight Management 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.
Status | Bad | Poor | Moderate | Good | High | Total |
---|---|---|---|---|---|---|
By 2027 | 0 | 0 | 0 | 10 | 0 | 10 |
Total | 0 | 0 | 0 | 10 | 0 | 10 |
Chemical status objectives for surface water bodies
Including those with less stringent objectives and extended deadlines
Status | Fail | Good | Total |
---|---|---|---|
By 2063 | 0 | 10 | 10 |
Total | 0 | 10 | 10 |
Quantitative status objectives for groundwater
Including those with less stringent objectives and extended deadlines
Status | Poor | Good | Total |
---|---|---|---|
Total | 0 | 0 | 0 |
Chemical status objectives for groundwater
Including those with less stringent objectives and extended deadlines
Status | Poor | Good | Total |
---|---|---|---|
Total | 0 | 0 | 0 |
Summary Statistics data for Isle of Wight Management Catchment
Ecological status and potential
Summary statistic | Rivers, Canals and SWTs | Lakes | Estuaries | Coastal | Surface Waters Combined |
---|---|---|---|---|---|
% of water bodies at good or better ecological status/potential | 0% | 0% | |||
% of biological elements, phys-chem elements and specific pollutants at good or better status | 79% | 79% | |||
% of water bodies with an objective of good ecological status/potential or better | 100% | 100% | |||
% of biological elements, phys-chem elements and Specific Pollutants with an objective of good status or better | 99% | 99% |
Chemical
Summary statistic | Rivers, Canals and SWTs | Lakes | Estuaries | Coastal | Surface Waters Combined |
---|---|---|---|---|---|
% of water bodies at good chemical status | 0% | 0% | |||
% of chemical elements at good status | 89% | 89% | |||
% of water bodies at good chemical status without uPBT | 100% | 100% | |||
% of chemical elements at good status without uPBT | 100% | 100% | |||
% of water bodies with an objective of good chemical status | 100% | 100% | |||
% of chemical elements with an objective of good | 100% | 100% | |||
% of water bodies with an objective of good chemical status without uPBT | 100% | 100% | |||
% of chemical elements with an objective of good without uPBTs | 100% | 100% |