Lower River Plym Water Body
Good ecological status
Get Lower River Plym data
Attributes
- Water Body IDGB108047004040
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRSX5201160645
- Surveillance Water BodyYes
- Length9.008 km
- Catchment area26.767 km2
- Catchment area2676.71 ha
Classifications
| Classification Item | 2013 | 2014 | 2015 | 2016 | 2019 |
|---|---|---|---|---|---|
| Ecological | Good | Good | Good | Good | Good |
| Biological quality elements | Good | Good | Good | Good | Good |
| Fish | Good | Good | Good | Good | Good |
| Invertebrates | High | High | Good | Good | High |
| Macrophytes and Phytobenthos Combined | Good | Good | Good | Good | Good |
| Physico-chemical quality elements | High | High | High | High | High |
| Acid Neutralising Capacity | High | High | High | High | |
| Ammonia (Phys-Chem) | High | High | High | High | High |
| Biochemical Oxygen Demand (BOD) | High | High | High | High | |
| Dissolved oxygen | High | High | High | High | High |
| Phosphate | High | High | High | High | High |
| Temperature | High | High | High | High | High |
| pH | High | High | High | High | High |
| Hydromorphological Supporting Elements | Supports good | Supports good | Supports good | Supports good | Supports good |
| Hydrological Regime | Does not support good | Does not support good | Does not support good | Does not support good | Does not support good |
| Morphology | Supports good | Supports good | Supports good | Supports good | Supports good |
| Specific pollutants | High | High | High | High | High |
| Arsenic | High | High | High | High | High |
| Chlorothalonil | High | ||||
| Copper | High | High | High | High | High |
| Iron | High | High | High | ||
| Manganese | High | High | High | High | High |
| Triclosan | High | High | |||
| Zinc | High | High | High | High | High |
| Chemical | Good | Good | Good | Good | Fail |
| Priority hazardous substances | Good | Good | Good | Good | Fail |
| Benzo (b) and (k) fluoranthene | Good | Good | Good | Good | |
| Benzo (ghi) perelyene and indeno (123-cd) pyrene | Good | Good | Good | Good | |
| Benzo(a)pyrene | Good | Good | Good | ||
| Cadmium and Its Compounds | Good | Good | Good | Good | Good |
| Di(2-ethylhexyl)phthalate (Priority hazardous) | Good | Good | |||
| Dioxins and dioxin-like compounds | Good | ||||
| Heptachlor and cis-Heptachlor epoxide | Good | ||||
| Hexabromocyclododecane (HBCDD) | Good | ||||
| Hexachlorobenzene | Good | ||||
| Hexachlorobutadiene | Good | ||||
| Hexachlorocyclohexane | Good | ||||
| Mercury and Its Compounds | Good | Good | Fail | ||
| Nonylphenol | Good | Good | |||
| Perfluorooctane sulphonate (PFOS) | Good | ||||
| Polybrominated diphenyl ethers (PBDE) | Fail | ||||
| Quinoxyfen | Good | ||||
| Tributyltin Compounds | Good | Good | |||
| Priority substances | Good | Good | Good | Good | Good |
| Aclonifen | Good | ||||
| Alachlor | Good | ||||
| Bifenox | Good | ||||
| Cybutryne | Good | ||||
| Cypermethrin (Priority hazardous) | Good | ||||
| Dichlorvos (Priority) | Good | ||||
| Fluoranthene | Good | Good | Good | Good | Good |
| Lead and Its Compounds | Good | Good | Good | Good | Good |
| Nickel and Its Compounds | Good | Good | Good | Good | Good |
| Terbutryn | Good | ||||
| Other Pollutants | Good | Good | Good | Good | Good |
| Aldrin, Dieldrin, Endrin & Isodrin | Good | Good | Good | Good | Good |
| para - para DDT | Good | Good | Good | Good | Good |
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 | Measures delivered to address Reason, awaiting classification | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Measures delivered to address Reason, awaiting classification | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RNAG | Flow | Regulating Reservoir Flow Regime | Water Industry | Hydrological Regime | 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 | 0 | 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 | 0 | 0 | 0 | 0 | 0 |
| Water Industry | 0 | 0 | 0 | 1 | 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 | 0 | 0 | 0 |
| Sector under investigation | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Good | 2015 | |
| Biological quality elements | Good | 2015 | |
| Fish | Good | 2015 | |
| Invertebrates | Good | 2015 | |
| Macrophytes and Phytobenthos Combined | Good | 2015 | |
| Physico-chemical quality elements | Good | 2015 | |
| Acid Neutralising Capacity | Good | 2015 | |
| Ammonia (Phys-Chem) | Good | 2015 | |
| Dissolved oxygen | Good | 2015 | |
| Phosphate | Good | 2015 | |
| Temperature | Good | 2015 | |
| pH | Good | 2015 | |
| Hydromorphological Supporting Elements | Supports good | 2015 | |
| Hydrological Regime | Supports good | 2027 | Disproportionately expensive: Disproportionate burdens |
| Supporting elements (Surface Water) | Not assessed | 2015 | |
| Specific pollutants | High | 2015 | |
| Arsenic | High | 2015 | |
| Copper | High | 2015 | |
| Iron | High | 2015 | |
| Manganese | High | 2015 | |
| Zinc | High | 2015 | |
| Chemical | Good | 2015 | |
| Priority hazardous substances | Good | 2015 | |
| Benzo (b) and (k) fluoranthene | Good | 2015 | |
| Benzo (ghi) perelyene and indeno (123-cd) pyrene | Good | 2015 | |
| Benzo(a)pyrene | Good | 2015 | |
| Cadmium and Its Compounds | Good | 2015 | |
| Mercury and Its Compounds | Good | 2015 | |
| Priority substances | Good | 2015 | |
| Fluoranthene | Good | 2015 | |
| Lead and Its Compounds | Good | 2015 | |
| Nickel and Its Compounds | Good | 2015 | |
| Other Pollutants | Good | 2015 | |
| Aldrin, Dieldrin, Endrin & Isodrin | Good | 2015 | |
| para - para DDT | Good | 2015 |
Protected areas
No data to show