Leven from Tame to River Tees Water Body
Moderate ecological status
Get Leven from Tame to River Tees data
Attributes
- Water Body IDGB103025071880
- Water Body TypeRiver
- Hydromorphological designationheavily modified
- NGRNZ4917308821
- Catchment area5235.52 ha
- Length38.125 km
- Catchment area52.355 km2
- Surveillance Water BodyNo
Classifications
| Classification Item | 2019 | 2022 |
|---|---|---|
| Ecological | Moderate | Moderate |
| Biological quality elements | Poor | Poor |
| Fish | Poor | Poor |
| Invertebrates | High | High |
| Macrophytes and Phytobenthos Combined | Moderate | Moderate |
| Macrophytes Sub Element | Moderate | Moderate |
| Phytobenthos Sub Element | Moderate | Moderate |
| Physico-chemical quality elements | Moderate | Moderate |
| Ammonia (Phys-Chem) | High | High |
| Dissolved oxygen | High | High |
| Phosphate | Poor | Moderate |
| Temperature | High | High |
| pH | High | High |
| Hydromorphological Supporting Elements | Supports good | Supports good |
| Hydrological Regime | Supports good | Supports good |
| Supporting elements (Surface Water) | Moderate | Moderate |
| Mitigation Measures Assessment | Moderate or less | Moderate or less |
| 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) | Good | |
| Polybrominated diphenyl ethers (PBDE) | Fail | |
| Priority substances | Fail | Does not require assessment |
| Cypermethrin (Priority) | Fail | |
| 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 | Physical modification | Other (not in list, must add details in comments) | Local and Central Government | Mitigation Measures Assessment | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Cypermethrin (Priority) | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Diffuse source | Track/rural road | Agriculture and rural land management | Fish | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RNAG | Diffuse source | Riparian/in-river activities (inc bankside erosion) | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Fish | Details |
| RNAG | Diffuse source | Septic Tanks | Domestic General Public | Phosphate | Details |
| RNAG | Diffuse source | Septic Tanks | Domestic General Public | Fish | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Physical modification | Other (not in list, must add details in comments) | Urban and transport | Mitigation Measures Assessment | Details |
| RNAG | Diffuse source | Riparian/in-river activities (inc bankside erosion) | Agriculture and rural land management | Fish | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Fish | Details |
| RNAG | Physical modification | Barriers - ecological discontinuity | Navigation | Fish | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Fish | Details |
| RNAG | Physical modification | Barriers - ecological discontinuity | Local and Central Government | Fish | Details |
| RNAG | Physical modification | Barriers - ecological discontinuity | Other | Fish | Details |
| RNAG | Diffuse source | Forestry | Agriculture and rural land management | Fish | 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 | 0 | 0 | 8 | 0 |
| Industry | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mining and quarrying | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Navigation | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Urban and transport | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Water Industry | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| Local & central government | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Domestic general public | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| Recreation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Waste treatment and disposal | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Other | 1 | 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 | 5 | 2 | 2 | 0 | 0 | 8 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Biological quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Fish | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Invertebrates | Good | 2015 | |
| Macrophytes and Phytobenthos Combined | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Physico-chemical quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Ammonia (Phys-Chem) | Good | 2015 | |
| Dissolved oxygen | Good | 2015 | |
| Phosphate | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Temperature | Good | 2015 | |
| pH | Good | 2015 | |
| Hydromorphological Supporting Elements | Supports good | 2015 | |
| Hydrological Regime | Supports good | 2015 | |
| Supporting elements (Surface Water) | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Mitigation Measures Assessment | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Specific pollutants | Not assessed | 2015 | |
| Chemical | Good | 2063 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Chemical status recovery time |
| Priority hazardous substances | Good | 2063 | Natural conditions: Chemical status recovery time |
| 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 | 2015 | |
| Polybrominated diphenyl ethers (PBDE) | Good | 2063 | Natural conditions: Chemical status recovery time |
| Priority substances | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Cypermethrin (Priority) | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Fluoranthene | Good | 2015 | |
| Other Pollutants | Does not require assessment | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| North York Moors | UK0030228 | Special Area of Conservation | Natural England |
| North York Moors | UK9006161 | Special Protection Area | Natural England |
Monitoring sites which have been used to classify this water body
Shows which sites were used for classification for which years within each cycle.