Click on a monitoring station name to view live and historical river data.
Station
Parameter
River
Town
Bishops Stortford, Grange Paddocks Level (Stage)
River Stort
Bishop'S Stortford
Borehamwood Level (Stage)
Borehamwood Brook
Borehamwood
Bragbury Park Level (Stage)
Stevenage Brook
Stevenage
Braughing Level (Stage)
River Quin
Ware
Buntingford Level (Stage)
River Rib
Buntingford
Cheshunt, Rosedale Way Level (Stage)
Rags Brook
Waltham Cross
Cheshunt, Trinity Lane Level (Stage)
Theobalds Brook
Waltham Cross
Cheshunt, Windmill Lane Level (Stage)
Small River Lee
Waltham Cross
Colney Street Level (Stage)
River Ver
St. Albans
Croxley Green Level (Stage)
River Gade
Rickmansworth
Dane End Level (Stage)
River Beane
Ware
Fulling Mill Level (Stage)
River Mimram
Welwyn
Furneux Pelham Level (Stage)
River Ash
Buntingford
Harlow Mill Level (Stage)
River Stort
Harlow
Harpenden Level (Stage)
River Lee
Harpenden
Hemel Hempstead, Bury Mill Level (Stage)
River Gade
Hemel Hempstead
Hemel Hempstead, Old Fishery Lane Level (Stage)
River Bulbourne
Hemel Hempstead
Hemel Hempstead, Two Waters Road Level (Stage)
River Bulbourne
Hemel Hempstead
Hertford, Hartham Park Level (Stage)
River Beane
Hertford
Hitchin Gs Level (Stage)
Hitchin
Hoddesdon, Rye Bridge Flow
River Lee
Hoddesdon
Hoddesdon, Rye Bridge Level (Stage)
River Lee
Hoddesdon
Lilley Bottom Obh Level (Groundwater)
Hitchin
Little Hadham Level (Stage)
River Ash
Ware
London Colney Level (Stage)
River Colne
St. Albans
Mardock Level (Stage)
River Ash
Ware
Markyate Level (Downstream Stage)
River Ver
St. Albans
Markyate Level (Stage)
River Ver
St. Albans
Mimmshall Brook Level (Stage)
Mimmshall Brook
Potters Bar
Moor Lane Level (Stage)
River Colne
Watford
North Mymms Level (Stage)
Mimmshall Brook
Hatfield
Panshanger Level (Stage)
River Mimram
Hertford
Pishiobury Brook Level (Stage)
Pishiobury Brook
Harlow
Radlett Level (Stage)
Radlett Brook
Radlett
Redbourn Level (Downstream Stage)
River Ver
St. Albans
Redbourn Level (Stage)
River Ver
St. Albans
Redbourn Level (Downstream Stage)
River Red
St. Albans
Redbourn Level (Stage)
River Red
St. Albans
Rickmansworth Level (Downstream Stage)
River Chess
Rickmansworth
Rickmansworth Level (Stage)
River Chess
Rickmansworth
River Hill Obh Level (Groundwater)
St. Albans
River Lee At Feildes Weir (Gauged) Level (Stage)
Harlow
Rye Meads Effluent At Rye Meads Level (Stage)
Hoddesdon
Shaftenhoe End Rrb Level (Groundwater)
Royston
Tumbling Bay Weir Level (Stage)
Amwell Loop
Ware
Wadesmill Level (Stage)
River Rib
Ware
Walkern Level (Stage)
River Beane
Stevenage
Waterhall Level (Stage)
River Lee
Hertford
Watford Level (Downstream Stage)
River Colne
Watford
Watford Level (Stage)
River Colne
Watford
Watton At Stone Level (Stage)
River Beane
Hertford
Whitwell Level (Stage)
River Mimram
Hitchin