River Till, Wiltshire
{{Short description|River in Wiltshire, England}}
{{About||the Northumberland river|River Till, Northumberland|the Lincolnshire river|River Till, Lincolnshire}}
{{Use British English|date=May 2021}}
{{Use dmy dates|date=May 2021}}
{{Infobox river
| name = River Till
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| image = File:Shrewton, High Street - River Till - geograph.org.uk - 362120.jpg
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| image_caption = River Till at Shrewton
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| subdivision_type1 = Country
| subdivision_name1 = United Kingdom
| subdivision_type2 = Country within the UK
| subdivision_name2 = England
| subdivision_type3 = Counties
| subdivision_name3 = Wiltshire
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| length =14km
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| source1 =
| source1_location = Tilshead
| source1_coordinates= {{coord|51|13|49|N|1|57|21|W|display=inline}}
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| mouth =
| mouth_location = Stapleford, Wiltshire
| mouth_coordinates = {{coord|51|08|09|N|1|54|07|W|display=inline,title}}
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The River Till rises near Tilshead on Salisbury Plain in the English county of Wiltshire. It flows for about {{Convert|14|km|mi|0|abbr=in}} south and south-east, through Orcheston, Maddington, Shrewton, Winterbourne Stoke, Berwick St James and Stapleford, to join the River Wylye.{{cite web|title=Till (Hampshire Avon)|url=https://environment.data.gov.uk/catchment-planning/WaterBody/GB108043022570|access-date=20 May 2021|website=Catchment Data Explorer|publisher=Environment Agency}}
The upper part of the river is a winterbourne, flowing only in winter and early spring.{{Cite web|date=August 2000|title=Notification: River Till SSSI|url=https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/2000431.pdf|access-date=20 May 2021|website=Natural England}} The whole length of the Till has been designated as a Site of Special Scientific Interest, as its vegetation includes water crowfoot which provides habitat for fish and snails.{{Cite web|title=River Till SSSI|url=https://designatedsites.naturalengland.org.uk/SiteDetail.aspx?SiteCode=S2000431&SiteName=River%20Till|access-date=2021-05-20|website=Natural England}}
Although Tilshead village appears to be named from the river, the opposite applies. The village name was first used in the 16th century, and comes from older names based on "Theodwulf's hide" (recorded in Domesday Book as Tidolthide).{{OpenDomesday|SU0347|tilshead|Tilshead}} The river was called the Winterbourne until around the start of the 20th century, when the name River Till began to be used on Ordnance Survey maps.{{cite web|author-last1=Baggs|author-first1=A.P.|year=1995|editor-last=Crowley|editor-first=D.A.|title=Victoria County History: Wiltshire: Vol 15 pp263-275 – Parishes: Tilshead|url=https://www.british-history.ac.uk/vch/wilts/vol15/pp263-275|access-date=20 May 2021|website=British History Online|publisher=University of London|author-first2=Jane|author-last2=Freeman|author-first3=Janet H|author-last3=Stevenson}}
Water quality
The Environment Agency measures the water quality of the river systems in England. Each is given an overall ecological status, which may be one of five levels: high, good, moderate, poor and bad. There are several components 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.{{cite web |url=http://environment.data.gov.uk/catchment-planning/help/glossary |website=Catchment Data Explorer |title=Glossary (see Biological quality element; Chemical status; and Ecological status) |publisher=Environment Agency |date=17 February 2016}} 30px Text was copied from this source, which is available under an [http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Open Government Licence v3.0]. © Crown copyright.
Water quality of the River Till in 2019:
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Section | Ecological Status | Chemical Status | Overall Status | Length | Catchment | Channel |
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{{waterqual_title |desc= Till (Hampshire Avon) |asset= GB108043022570}}
| {{waterqual_good}} | {{waterqual_fail}} | {{waterqual_mod}} | {{convert| 13.993 |km|mi|abbr=on}} | {{convert| 127.785 |km2|sqmi|abbr=on}} | |