Cam and Ely Ouse Chalk Water Body
Poor overall status
Get Cam and Ely Ouse Chalk data
Attributes
- Water Body IDGB40501G400500
- Water Body TypeGroundwater Body
- Hydromorphological designationnot applicable
- NGRTL5183229017
- Groundwater area299577.401 ha
- Surface area2995.774 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 |
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 Type | SWMI | Activity | Category | Classification Element | More information |
|---|---|---|---|---|---|
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | General Chemical Test | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Trend Assessment | Details |
| RNAG | Diffuse source | Transport Drainage | Industry | General Chemical Test | 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 | General Chemical Test | Details |
| RNAG | Flow | Groundwater abstraction | Industry | Quantitative Water Balance | Details |
| RNAG | Diffuse source | Transport Drainage | Industry | Chemical Drinking Water Protected Area | Details |
| RNAG | Flow | Groundwater abstraction | Water Industry | Quantitative Water Balance | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Chemical Drinking Water Protected Area | Details |
| RNAG | Flow | Groundwater abstraction | Industry | Quantitative Dependent Surface Water Body Status | Details |
| RNAG | Flow | Groundwater abstraction | Water Industry | Quantitative Dependent Surface Water Body Status | Details |
| RNAG | Flow | Groundwater abstraction | Other | Quantitative GWDTEs test | Details |
| RNAG | Point source | Sewage discharge (continuous) | Domestic General Public | General Chemical Test | Details |
| RNAG | Diffuse source | Other (not in list, must add details in comments) | Other | Trend Assessment | Details |
| RNAG | Flow | Groundwater abstraction | Agriculture and rural land management | Quantitative Water Balance | Details |
| RNAG | Flow | Groundwater abstraction | Agriculture and rural land management | Quantitative Dependent Surface Water Body Status | 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 | 1 | 0 | 3 | 0 |
| Industry | 0 | 0 | 2 | 1 | 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 | 1 | 0 | 1 | 0 | 0 | 0 |
| Local & central government | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Domestic general public | 0 | 1 | 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 | 2 | 2 | 3 | 0 | 3 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Overall Water Body | Poor | 2015 | Disproportionately expensive: Disproportionate burdens; Disproportionately expensive: Unfavourable balance of costs and benefits |
| 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 | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Quantitative Saline Intrusion | Good | 2015 | |
| Quantitative Water Balance | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
| Chemical (GW) | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Chemical Status element | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Chemical Dependent Surface Water Body Status | Good | 2015 | |
| Chemical Drinking Water Protected Area | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
| Chemical GWDTEs test | Good | 2015 | |
| Chemical Saline Intrusion | Good | 2015 | |
| General Chemical Test | Poor | 2015 | Disproportionately expensive: Unfavourable balance of costs and benefits |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| Great Ouse NVZ | S391 | Nitrates Directive | |
| River Waveney NVZ | S396 | Nitrates Directive | |
| Ely Ouse and Cut-off channel NVZ | S390 | Nitrates Directive | |
| Sandlings and Chelmsford | G78 | Nitrates Directive | |
| River Blackwater NVZ | S434 | Nitrates Directive | |
| Stansted Mountfitchet | G152 | Nitrates Directive | |
| Fowlmere | GWSGZ0005 | Safeguard Zone | |
| River Gipping NVZ | S416 | Nitrates Directive | |
| Norfolk Valley Fens | UK0012892 | Special Area of Conservation | Natural England |
| LEE NVZ | S443 | Nitrates Directive | |
| Anglian Chalk | G71 | Nitrates Directive | |
| Breckland | UK0019865 | Special Area of Conservation | Natural England |
| Yare NVZ | S400 | Nitrates Directive | |
| Sandringham Sands South | G150 | Nitrates Directive | |
| Wendling Beck NVZ | S398 | Nitrates Directive | |
| River Chelmer NVZ | S428 | Nitrates Directive | |
| Lower Stour NVZ | S424 | Nitrates Directive | |
| Buntingford Chalk | G141 | Nitrates Directive | |
| Relief Channel/Polver drain NVZ | S834 | Nitrates Directive | |
| North Pickenham | GWSGZ0010 | Safeguard Zone | |
| Fulbourn | GWSGZ0006 | Safeguard Zone | |
| Babraham | GWSGZ0001 | Safeguard Zone | |
| Waveney & Little Ouse Valley Fens | UK0012882 | Special Area of Conservation | Natural England |
| Fenland | UK0014782 | Special Area of Conservation | Natural England |
| Risby | GWSGZ0011 | Safeguard Zone | |
| Redgrave & South Lopham Fens | UK11056 | Ramsar Site | Natural England |
| Chippenham Fen | UK11014 | Ramsar Site | Natural England |
| Linton | GWSGZ0007 | Safeguard Zone | |
| Bretenham | GWSGZ0002 | Safeguard Zone | |
| Tas NVZ | S395 | Nitrates Directive | |
| Cam and Ely Ouse Chalk | UKGB40501G400500 | Drinking Water Protected Area | |
| Melbourn | GWSGZ0008 | Safeguard Zone | |
| Clavering | G720 | Nitrates Directive | |
| Euston | GWSGZ0003 | Safeguard Zone | |
| Morden Grange | GWSGZ0009 | Safeguard Zone | |
| Fleam Dyke | GWSGZ0004 | 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.