Arun (U/S Pallingham) Water Body
Moderate ecological status
Get Arun (U/S Pallingham) data
Attributes
- Water Body IDGB107041017950
- Water Body TypeRiver
- Hydromorphological designationnot designated artificial or heavily modified
- NGRTQ0410622155
- Catchment area8741.93 ha
- Length34.037 km
- Catchment area87.419 km2
- Surveillance Water BodyYes
Classifications
| Classification Item | 2019 |
|---|---|
| Ecological | Moderate |
| Biological quality elements | Moderate |
| Fish | Moderate |
| Invertebrates | High |
| Macrophytes and Phytobenthos Combined | Moderate |
| Macrophytes Sub Element | Moderate |
| Phytobenthos Sub Element | Moderate |
| Physico-chemical quality elements | Moderate |
| Acid Neutralising Capacity | High |
| Ammonia (Phys-Chem) | High |
| Dissolved oxygen | Good |
| Phosphate | Poor |
| Temperature | High |
| pH | High |
| Hydromorphological Supporting Elements | Supports good |
| Hydrological Regime | Supports good |
| Morphology | Supports good |
| Specific pollutants | High |
| Arsenic | High |
| Chlorothalonil | High |
| Chromium (VI) | High |
| Copper | High |
| Iron | High |
| Manganese | High |
| Pendimethalin | High |
| Triclosan | High |
| Zinc | High |
| Chemical | Fail |
| Priority hazardous substances | Fail |
| Benzo(a)pyrene | Good |
| Benzo(b)fluoranthene | Good |
| Benzo(g-h-i)perylene | Good |
| Benzo(k)fluoranthene | Good |
| Cadmium and Its Compounds | Good |
| Di(2-ethylhexyl)phthalate (Priority hazardous) | 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 | Fail |
| Nonylphenol | Good |
| Pentachlorobenzene | Good |
| Perfluorooctane sulphonate (PFOS) | Fail |
| Polybrominated diphenyl ethers (PBDE) | Fail |
| Quinoxyfen | Good |
| Tributyltin Compounds | Good |
| Priority substances | Good |
| 1,2-dichloroethane | Good |
| Aclonifen | Good |
| Alachlor | Good |
| Atrazine | Good |
| Benzene | Good |
| Bifenox | Good |
| Cybutryne | Good |
| Cypermethrin (Priority) | Good |
| Dichloromethane | Good |
| Dichlorvos (Priority) | Good |
| Fluoranthene | Good |
| Lead and Its Compounds | Good |
| Nickel and Its Compounds | Good |
| Simazine | Good |
| Terbutryn | Good |
| Trichloromethane | Good |
| Other Pollutants | Good |
| Aldrin, Dieldrin, Endrin & Isodrin | Good |
| Carbon Tetrachloride | Good |
| DDT Total | Good |
| para - para DDT | Good |
Investigations into classification status
| Classification Element | Cycle | Year | Status | Outcome |
|---|---|---|---|---|
| Fish | 2 | 2015 | Moderate | Very certain there is a problem |
| Macrophytes and Phytobenthos Combined | 2 | 2013 | Moderate | Quite certain there is a problem |
| Invertebrates | 2 | 2013 | Moderate | Quite certain there is a problem |
| Triclosan | 2 | 2014 | Moderate | Quite certain there is a problem |
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 | Diffuse source | Poor nutrient management | Agriculture and rural land management | Macrophytes and Phytobenthos Combined | Details |
| RNAG | Diffuse source | Poor nutrient management | Agriculture and rural land management | Fish | Details |
| RNAG | Unknown (pending investigation) | Unknown (pending investigation) | Sector under investigation | Perfluorooctane sulphonate (PFOS) | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Fish | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Polybrominated diphenyl ethers (PBDE) | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Phosphate | Details |
| RNAG | Diffuse source | Poor soil management | Agriculture and rural land management | Phosphate | Details |
| RNAG | Point source | Private Sewage Treatment | Other | Phosphate | Details |
| RNAG | measures delivered to address reason, awaiting recovery | Not applicable | No sector responsible | Mercury and Its Compounds | Details |
| RNAG | Point source | Sewage discharge (continuous) | Water Industry | Macrophytes and Phytobenthos Combined | 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 | 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 | 0 | 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 | 1 | 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 | 3 | 1 | 0 | 0 | 3 | 0 |
Objectives
| Classification Item | Status | Year | Reasons |
|---|---|---|---|
| Ecological | Good | 2033 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Ecological recovery time |
| Biological quality elements | Good | 2033 | Disproportionately expensive: Disproportionate burdens; Natural conditions: Ecological recovery time |
| Fish | Good | 2027 | Disproportionately expensive: Disproportionate burdens |
| Invertebrates | Good | 2015 | |
| Macrophytes and Phytobenthos Combined | Good | 2033 | Natural conditions: Ecological recovery time |
| Physico-chemical quality elements | Good | 2027 - Low confidence | Disproportionately expensive: Disproportionate burdens |
| Acid Neutralising Capacity | Good | 2015 | |
| 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) | Not assessed | 2015 | |
| Specific pollutants | High | 2015 | |
| Arsenic | High | 2015 | |
| Chlorothalonil | High | 2015 | |
| Chromium (VI) | High | 2015 | |
| Copper | High | 2015 | |
| Iron | High | 2015 | |
| Manganese | High | 2015 | |
| Pendimethalin | High | 2015 | |
| Triclosan | High | 2015 | |
| Zinc | 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 (b) and (k) fluoranthene | Good | 2015 | |
| Benzo (ghi) perelyene and indeno (123-cd) pyrene | Good | 2015 | |
| Benzo(a)pyrene | Good | 2015 | |
| Benzo(b)fluoranthene | Good | 2015 | |
| Benzo(g-h-i)perylene | Good | 2015 | |
| Benzo(k)fluoranthene | Good | 2015 | |
| Cadmium and Its Compounds | Good | 2015 | |
| Di(2-ethylhexyl)phthalate (Priority hazardous) | 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 | |
| Hexachlorocyclohexane | Good | 2015 | |
| Mercury and Its Compounds | Good | 2040 | Natural conditions: Chemical status recovery time |
| Nonylphenol | Good | 2015 | |
| Pentachlorobenzene | Good | 2015 | |
| 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 |
| Quinoxyfen | Good | 2015 | |
| Tributyltin Compounds | Good | 2015 | |
| Priority substances | Good | 2015 | |
| 1,2-dichloroethane | Good | 2015 | |
| Aclonifen | Good | 2015 | |
| Alachlor | Good | 2015 | |
| Atrazine | Good | 2015 | |
| Benzene | Good | 2015 | |
| Bifenox | Good | 2015 | |
| Cybutryne | Good | 2015 | |
| Cypermethrin (Priority) | Good | 2015 | |
| Dichloromethane | Good | 2015 | |
| Dichlorvos (Priority) | Good | 2015 | |
| Fluoranthene | Good | 2015 | |
| Lead and Its Compounds | Good | 2015 | |
| Nickel and Its Compounds | Good | 2015 | |
| Simazine | Good | 2015 | |
| Terbutryn | Good | 2015 | |
| Trichloromethane | Good | 2015 | |
| Other Pollutants | Good | 2015 | |
| Aldrin, Dieldrin, Endrin & Isodrin | Good | 2015 | |
| Carbon Tetrachloride | Good | 2015 | |
| DDT Total | Good | 2015 | |
| para - para DDT | Good | 2015 |
Protected areas
| PA Name | Id | Directive | More information |
|---|---|---|---|
| Arun | SWSGZ4317 | Safeguard Zone | |
| River Arun (u/s Pallingham) NVZ | S523 | Nitrates Directive | |
| River Arun | UKENRI109 | 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.