Wid (Shenfield STW - Ingatestone Hall) Water Body
Moderate ecological status
Get Wid (Shenfield STW - Ingatestone Hall) data
Attributes
- Water Body IDGB105037028670
- Water Body TypeRiver
- Hydromorphological designationheavily modified
- NGRTQ6633297269
- Catchment area18.538 km2
- Surveillance Water BodyNo
- Length4.719 km
- Catchment area1853.85 ha
Classifications
| Classification Item | 2019 | 2022 |
|---|---|---|
| Ecological | Moderate | Moderate |
| Biological quality elements | Moderate | Moderate |
| Fish | High | High |
| Invertebrates | Moderate | Moderate |
| Macrophytes and Phytobenthos Combined | High | High |
| Phytobenthos Sub Element | High | High |
| Physico-chemical quality elements | Moderate | Moderate |
| Ammonia (Phys-Chem) | Good | Good |
| Dissolved oxygen | Bad | Bad |
| Phosphate | Poor | Poor |
| Temperature | High | High |
| pH | High | High |
| Hydromorphological Supporting Elements | Supports good | Supports good |
| Hydrological Regime | Supports good | Supports good |
| Supporting elements (Surface Water) | Good | Good |
| Mitigation Measures Assessment | Good | Good |
| Specific pollutants | High | High |
| Triclosan | High | High |
| Chemical | Fail | Does not require assessment |
| Priority hazardous substances | Fail | Does not require assessment |
| Benzo(a)pyrene | Good | |
| Dioxins and dioxin-like compounds | Good | |
| Heptachlor and cis-Heptachlor epoxide | Good | |
| Hexabromocyclododecane (HBCDD) | Good | |
| Hexachlorobenzene | Good | |
| Hexachlorobutadiene | Good | |
| Mercury and Its Compounds | Fail | |
| Perfluorooctane sulphonate (PFOS) | Fail | |
| Polybrominated diphenyl ethers (PBDE) | Fail | |
| Tributyltin Compounds | Good | |
| Priority substances | Good | Does not require assessment |
| Cypermethrin (Priority) | Good | |
| Fluoranthene | Good | |
| Other Pollutants | Does not require assessment | Does not require assessment |
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 | Phosphate | Details |
| RNAG | Physical modification | Land drainage | Agriculture and rural land management | Dissolved oxygen | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Invertebrates | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Dissolved oxygen | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Invertebrates | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
| RNAG | Invasive non-native species | North american signal crayfish | No sector responsible | Invertebrates | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Perfluorooctane sulphonate (PFOS) | Details |
| RNAG | Physical modification | Land drainage | Agriculture and rural land management | Fish | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RNAG | Physical modification | Land drainage - operational management | Agriculture and rural land management | Invertebrates | Details |
| RNAG | Diffuse source | Transport Drainage | Urban and transport | Phosphate | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Poor Livestock Management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Point source | Sewage discharge (intermittent) | Water Industry | Phosphate | 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 | 2 | 0 | 0 | 0 | 0 | 3 | 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 | 1 | 0 | 0 | 0 | 0 |
| Water Industry | 0 | 3 | 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 | 1 | 0 | 0 |
| Sector under investigation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 2 | 3 | 1 | 0 | 1 | 3 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use; Technically infeasible: No known technical solution is available |
| Biological quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use |
| Fish | Good | 2021 | Disproportionately expensive: Disproportionate burdens |
| Invertebrates | Moderate | 2015 | Good status prevented by A/HMWB designated use: Action to get biological element to good would have significant adverse impact on use |
| Macrophytes and Phytobenthos Combined | Good | 2015 | |
| Physico-chemical quality elements | Moderate | 2015 | Disproportionately expensive: Disproportionate burdens; Technically infeasible: No known technical solution is available |
| Ammonia (Phys-Chem) | Good | 2015 | |
| Dissolved oxygen | Moderate | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Phosphate | Poor | 2015 | Technically infeasible: No known technical solution is available |
| Temperature | Good | 2015 | |
| pH | Good | 2015 | |
| Hydromorphological Supporting Elements | Supports good | 2015 | |
| Hydrological Regime | Supports good | 2015 | |
| Supporting elements (Surface Water) | Good | 2015 | |
| Mitigation Measures Assessment | Good | 2015 | |
| Specific pollutants | High | 2015 | |
| Triclosan | High | 2015 | |
| Chemical | Good | 2063 | Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
| Priority hazardous substances | Good | 2063 | Natural conditions: Chemical status recovery time; Technically infeasible: No known technical solution is available |
| Benzo(a)pyrene | Good | 2015 | |
| Dioxins and dioxin-like compounds | Good | 2015 | |
| Heptachlor and cis-Heptachlor epoxide | Good | 2015 | |
| Hexabromocyclododecane (HBCDD) | Good | 2015 | |
| Hexachlorobenzene | Good | 2015 | |
| Hexachlorobutadiene | Good | 2015 | |
| Mercury and Its Compounds | Good | 2040 | Natural conditions: Chemical status recovery time |
| Perfluorooctane sulphonate (PFOS) | Good | 2039 | Technically infeasible: No known technical solution is available |
| Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
| Tributyltin Compounds | Good | 2015 | |
| Priority substances | Good | 2015 | |
| Cypermethrin (Priority) | Good | 2015 | |
| Fluoranthene | Good | 2015 | |
| Other Pollutants | Does not require assessment | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| River Wid, Can and Chelmer | UKENRI72_&_UKENRI72b | Urban Waste Water Treatment Directive | |
| River Chelmer NVZ | S428 | Nitrates Directive | |
| River Chelmer | UKENRI72_&_UKENRI84b | Urban Waste Water Treatment Directive |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.