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Ecological and chemical classification for surface waters |

Ecological status or potential Chemical status
Number of water bodies

Chemical and quantitative classification for groundwater |

Quantitative status Chemical status
Number of water bodies

Summary of objectives (ecological status or potential and chemical status) for surface water bodies (number of water bodies)

Summary of quantitative and chemical status objectives for groundwater (number of water bodies) including those with less stringent objectives and extended deadlines (blue shaded cells)

Reasons for not achieving good status and reasons for deterioration in this

The table below shows the number of reasons for not achieving good status (RNAGS) and reasons for deterioration (RFD), split by sector.

Issues preventing waters reaching good status

Issues preventing waters reaching good status and the sectors identified as contributing to them are shown in a table in the new summary page.

View Table

Numbers of measures split by sector

This table shows the number of confident measures in the catchment.

{"type":"Operational Catchment","management-catchment-label":"Cam and Ely Ouse","river-basin-district-label":"Anglian","management-catchment":"ManagementCatchment/3009","river-basin-district":"RiverBasinDistrict/5","label":"Lark","description":"The River Lark rises as a chalk stream to the south of Bury St Edmunds and flows North west through Mildenhall to the South Level. Its tributaries include the River Linnet, Culford Stream; Cavenham Stream; Tuddenham Stream and the River Kennet. The area is mainly rural, with many small villages and the market towns of Bury St Edmunds and Mildenhall. Land use is diverse with tree belts and woodlands. In the Lark valley the dryness of the soils has limited their land-use and historically there were extensive heaths, Cavenham Heath is the largest survivor and is now a nature reserve.","rbd-hyperlink":"https://www.gov.uk/government/collections/river-basin-management-plans-2015","photoAltText":"River Lark at Bury St Edmunds","id":"3249","wbagg":{"header":["Water body categories","Natural","Artificial","Heavily modified","Total"],"aggregations":[{"Water body categories":"River, canals and surface water transfers ","Natural":3,"Artificial":0,"Heavily modified":9,"Total":12},{"Water body categories":"Lake","Natural":0,"Artificial":0,"Heavily modified":0,"Total":0},{"Water body categories":"Coastal","Natural":0,"Artificial":0,"Heavily modified":0,"Total":0},{"Water body categories":"Estuarine","Natural":0,"Artificial":0,"Heavily modified":0,"Total":0},{"Water body categories":"Groundwater","Natural":0,"Artificial":0,"Heavily modified":0,"Total":0},{"Water body categories":"Total","Natural":3,"Artificial":0,"Heavily modified":9,"Total":12}]},"classificationstatus":{"surfaceWrapper":{"chemical":{"header":[{"color":"#FF0000","type":"Fail"},{"color":"#00CC00","type":"Good"}],"status":{"2016 Cycle 2":{"Good":12,"Fail":0},"2019 Cycle 2":{"Good":0,"Fail":12},"2015 Cycle 2":{"Good":12,"Fail":0}}},"ecological":{"header":[{"color":"#FF0000","type":"Bad"},{"color":"#FFA500","type":"Poor"},{"color":"#FFFF00","type":"Moderate"},{"color":"#00CC00","type":"Good"},{"color":"#0000FF","type":"High"}],"status":{"2016 Cycle 2":{"High":0,"Bad":1,"Poor":1,"Moderate":9,"Good":1},"2019 Cycle 2":{"High":0,"Bad":2,"Poor":2,"Moderate":7,"Good":1},"2015 Cycle 2":{"High":0,"Bad":1,"Poor":2,"Moderate":8,"Good":1}}},"total":{"header":[{"color":"total","type":"#ffffff"}],"status":{"2016 Cycle 2":{"total":12},"2019 Cycle 2":{"total":12},"2015 Cycle 2":{"total":12}}}},"yearandcycles":["2019 Cycle 2","2016 Cycle 2","2015 Cycle 2"]},"measureRnagagg":{"measureRNAGdata":{"data":[{"sector":"Agriculture and rural land management","rfd":0,"rnag":33,"total":33,"measureCount":0},{"sector":"Domestic General Public","rfd":0,"rnag":0,"total":0,"measureCount":0},{"sector":"Industry","rfd":0,"rnag":4,"total":4,"measureCount":0},{"sector":"Local and Central Government","rfd":0,"rnag":8,"total":8,"measureCount":0},{"sector":"Mining and quarrying","rfd":0,"rnag":1,"total":1,"measureCount":0},{"sector":"Navigation","rfd":0,"rnag":0,"total":0,"measureCount":0},{"sector":"No sector responsible","rfd":0,"rnag":15,"total":15,"measureCount":0},{"sector":"Other","rfd":0,"rnag":3,"total":3,"measureCount":0},{"sector":"Recreation","rfd":0,"rnag":1,"total":1,"measureCount":0},{"sector":"Sector under investigation","rfd":0,"rnag":2,"total":2,"measureCount":0},{"sector":"Urban and transport","rfd":0,"rnag":5,"total":5,"measureCount":0},{"sector":"Waste treatment and disposal","rfd":0,"rnag":0,"total":0,"measureCount":0},{"sector":"Water Industry","rfd":0,"rnag":24,"total":24,"measureCount":1}]},"measureHeader":{"Sector":"sector","Number of measures":"measureCount"},"rnagHeader":{"Sector":"sector","RFD":"rfd","RNAG":"rnag","Grand Total":"total"},"measureFooter":["Grand Total","1"],"rnagFooter":["Grand Total","0","96","96"]},"objectivestatus":{"surfaceWrapper":{"tables":{"Chemical status":{"tablename":"Chemical status","header":[{"color":"#FF0000","type":"Fail"},{"color":"#00CC00","type":"Good"},{"color":"#ffffff","type":"Total"}],"status":{"Beyond 2027":{"Total":0,"Good":0,"Fail":0},"By 2021":{"Total":0,"Good":0,"Fail":0},"Total":{"Total":12,"Good":12,"Fail":0},"By 2015":{"Total":12,"Good":12,"Fail":0},"By 2027":{"Total":0,"Good":0,"Fail":0}}},"Ecological status or potential":{"tablename":"Ecological status or potential","header":[{"color":"#FF0000","type":"Bad"},{"color":"#FFA500","type":"Poor"},{"color":"#FFFF00","type":"Moderate"},{"color":"#00CC00","type":"Good"},{"color":"#0000FF","type":"High"},{"color":"#ffffff","type":"Total"}],"status":{"Beyond 2027":{"High":0,"Bad":0,"Poor":0,"Moderate":0,"Total":0,"Good":0},"By 2021":{"High":0,"Bad":0,"Poor":0,"Moderate":0,"Total":0,"Good":0},"Total":{"High":0,"Bad":1,"Poor":0,"Moderate":5,"Total":12,"Good":6},"By 2015":{"High":0,"Bad":1,"Poor":0,"Moderate":4,"Total":6,"Good":1},"By 2027":{"High":0,"Bad":0,"Poor":0,"Moderate":1,"Total":6,"Good":5}}}},"byyears":[]},"byyears":["By 2015","By 2021","By 2027","Beyond 2027","Total"]},"legend":[{"type":"Operational Catchment","color":"#333366"}]}