that are used to determine this, including biological status, which looks at the quantity and varieties of invertebrates, angiosperms and fish. Chemical status, which compares the concentrations of various chemicals against known safe concentrations, is rated good or fail. Water quality of the River Wey in 2019: Further reading Inland Waterways Association (South-East Region) The River Wey and Godalming Navigation: Weybridge to Godalming Inland Waterways Association 1976 See also Tributaries of the River Thames Canals of the United Kingdom List of rivers of England Perseverance IV, last floating River Wey barge. Mills on the River Wey and its tributaries Notes and references Notes References External links The River Wey Trust River Wey and Godalming Navigations and Dapdune Wharf River Wey Catchment Flood Warnings Rivers of Hampshire Rivers of Surrey River navigations in the United Kingdom Wey