ROTHER Water Body

Moderate ecological status

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Attributes

Water Body IDGB540704016100
Water Body TypeTransitional Water
Hydromorphological designationheavily modified
NGRTQ9334019638
Surveillance Water BodyNo
Surface area0.401 km2
Surface area40.122 ha

Classifications

Classification Item	2019	2022
Ecological	Moderate	Moderate
Biological quality elements	High	High
Macroalgae	High	High
Opportunistic Macroalgae	High	High
Phytoplankton	High	High
Physico-chemical quality elements	Moderate	Moderate
Dissolved Inorganic Nitrogen	Moderate	Moderate
Dissolved oxygen	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
Specific pollutants	High	High
Arsenic	High	High
Zinc	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)	Good
Polybrominated diphenyl ethers (PBDE)	Fail
Priority substances	Good	Does not require assessment
Benzene	Good
Fluoranthene	Good
Lead and Its Compounds	Good
Nickel and Its Compounds	Good
Other Pollutants	Does not require assessment	Does not require assessment

Why do all water bodies have a chemical status of fail?

Investigations into classification status

Classification Element	Cycle	Year	Status	Outcome
Dissolved Inorganic Nitrogen	2	2013	Moderate	Certain there is not 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	Physical modification	Other (not in list, must add details in comments)	Local and Central Government	Mitigation Measures Assessment	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

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	0	0	0	0
Local & central government	1	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	1	0	0	0	0	0	0

Objectives

Classification Item	Status	Year	Reasons
Ecological	Moderate	2015	Disproportionately expensive: Disproportionate burdens; Disproportionately expensive: Unfavourable balance of costs and benefits
Biological quality elements	Good	2015
Macroalgae	Good	2015
Phytoplankton	Good	2015
Physico-chemical quality elements	Moderate	2015	Disproportionately expensive: Unfavourable balance of costs and benefits
Dissolved Inorganic Nitrogen	Moderate	2015	Disproportionately expensive: Unfavourable balance of costs and benefits
Dissolved oxygen	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	High	2015
Arsenic	High	2015
Zinc	High	2015
Chemical	Good	2063	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	2021	Natural conditions: Chemical status recovery time
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	2015
Benzene	Good	2015
Fluoranthene	Good	2015
Lead and Its Compounds	Good	2015
Nickel and Its Compounds	Good	2015
Other Pollutants	Does not require assessment	2015

Protected areas

PA Name	Id	Directive	More information
Dungeness, Romney Marsh And Rye Bay	UK9012091	Special Protection Area	Natural England
Dungeness, Romney Marsh And Rye Bay	UK11023	Ramsar Site	Natural England
Dungeness	UK0013059	Special Area of Conservation	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.

Monitoring Site	Cycle 1	Cycle 2	Cycle 3
RYE HARBOUR ON R ROTHER E0001532	2012, 2013, 2009, 2010, 2011
RYE ROAD BRIDGE A259 R ROTHER E0001537	2012, 2013, 2009, 2010, 2011
SRM DSD DOWNSTREAM EMZ E0004563	2011, 2013, 2009, 2012, 2010	2016, 2019, 2015	2019

ROTHER Water Body

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Related links

Attributes

Classifications

Investigations into classification status

Reasons for not achieving good (RNAG) and reasons for deterioration (RFD)

Reasons for not achieving good status by business sector

Objectives

Protected areas

Monitoring sites which have been used to classify this water body

Upstream water bodies

Downstream water bodies

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ROTHER Water Body

Get ROTHER data

Related links

Attributes

Classifications

Investigations into classification status

Reasons for not achieving good (RNAG) and reasons for deterioration (RFD)

Reasons for not achieving good status by business sector

Objectives

Protected areas

Monitoring sites which have been used to classify this water body

Upstream water bodies

Downstream water bodies