Cam and Ely Ouse Management Catchment
About
Within the Cam and Ely Ouse catchment the Great Ouse River drains an area of approximately 3,600 square kilometres extending from Swaffham in the north to Royston and Saffron Walden in the south and from Potton in the west to Attleborough in the east. The Great Ouse, in this catchment, is fed by four main tributaries: The River Cam, which receives water from the River Granta, the South Level Lodes, the River Rhee and Bourn Brook. The River Lark. The Little Ouse and its tributaries which include the Thet and the Sapiston/Black Bourn. The River Wissey. The area is characterised by the East Anglian Chalklands in the south, Brecklands in the north and the South Level fenland to the west of the area. The catchment is predominantly rural and includes high-grade agricultural land. The main urban areas within the Cam and Ely Ouse are Cambridge, Royston, Saffron Walden, Newmarket, Bury St Edmunds, Ely and Swaffham. The area is rapidly developing. The catchment also supports a number of nationally and internationally important water-related sites that are of exceptional value.
Classifications data for Cam and Ely Ouse 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 | 13 | 2 | 54 | 69 |
| Lake | 2 | 1 | 1 | 4 |
| Coastal | 0 | 0 | 0 | 0 |
| Estuarine | 0 | 0 | 0 | 0 |
| Groundwater | 0 | 0 | 0 | 0 |
| Total | 15 | 3 | 55 | 73 |
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 | 3 | 5 | 58 | 7 | 0 | 73 |
| Number of water body elements | 8 | 42 | 73 | 94 | 417 | 634 |
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 | 73 | 0 | 73 |
| Number of water body elements | 111 | 904 | 1015 |
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 Cam and Ely Ouse 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 | 17 | 0 | 46 | 0 | 48 | 0 | 0 |
| Domestic general public | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Industry | 4 | 0 | 2 | 0 | 0 | 11 | 2 |
| Local & central government | 2 | 0 | 33 | 0 | 0 | 0 | 2 |
| Mining and quarrying | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Navigation | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| No sector responsible | 0 | 4 | 0 | 0 | 0 | 0 | 0 |
| Other | 0 | 0 | 5 | 0 | 0 | 0 | 0 |
| Recreation | 0 | 0 | 11 | 0 | 0 | 0 | 0 |
| Sector under investigation | 0 | 0 | 5 | 0 | 0 | 0 | 0 |
| Urban and transport | 0 | 0 | 10 | 0 | 0 | 8 | 0 |
| Waste treatment and disposal | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Water Industry | 17 | 0 | 2 | 0 | 0 | 0 | 60 |
| Total | 40 | 4 | 115 | 0 | 48 | 19 | 64 |
Objectives data for Cam and Ely Ouse 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 2015 | 0 | 0 | 16 | 11 | 0 | 27 |
| By 2021 | 0 | 0 | 1 | 1 | 0 | 2 |
| By 2027 | 0 | 0 | 2 | 41 | 0 | 43 |
| By 2060 | 0 | 0 | 0 | 1 | 0 | 1 |
| Total | 0 | 0 | 19 | 54 | 0 | 73 |
Chemical status objectives for surface water bodies
Including those with less stringent objectives and extended deadlines
| Status | Fail | Good | Total |
|---|---|---|---|
| By 2063 | 0 | 73 | 73 |
| Total | 0 | 73 | 73 |
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 Cam and Ely Ouse 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 | 7% | 50% | 10% | ||
| % of biological elements, phys-chem elements and specific pollutants at good or better status | 77% | 82% | 77% | ||
| % of water bodies with an objective of good ecological status/potential or better | 72% | 100% | 74% | ||
| % of biological elements, phys-chem elements and Specific Pollutants with an objective of good status or better | 93% | 100% | 93% |
Chemical
| Summary statistic | Rivers, Canals and SWTs | Lakes | Estuaries | Coastal | Surface Waters Combined |
|---|---|---|---|---|---|
| % of water bodies at good chemical status | 0% | 0% | 0% | ||
| % of chemical elements at good status | 89% | 88% | 89% | ||
| % of water bodies at good chemical status without uPBT | 96% | 100% | 96% | ||
| % of chemical elements at good status without uPBT | Greater than 99% | 100% | Greater than 99% | ||
| % of water bodies with an objective of good chemical status | 100% | 100% | 100% | ||
| % of chemical elements with an objective of good | 100% | 100% | 100% | ||
| % of water bodies with an objective of good chemical status without uPBT | 100% | 100% | 100% | ||
| % of chemical elements with an objective of good without uPBTs | 100% | 100% | 100% |