Editing River Test (section)

===Water quality===
The Environment Agency measure 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 [[invertebrate]]s, [[angiosperm]]s and fish. Chemical status, which compares the concentrations of various chemicals against known safe concentrations, is rated good or fail.<ref>{{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}}  [[File:UKOpenGovernmentLicence.svg|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.</ref>

Water quality of the River Test in 2019:
{| class="wikitable"
|-
! Section !! Ecological<br />Status !! Chemical<br />Status !! Overall<br />Status !! Length !! Catchment !! Channel
|-
| {{waterqual_title |desc=Test (Upper) |asset= GB107042022710}} 
| {{waterqual_good}} 
| {{waterqual_fail}} 
| {{waterqual_mod}} 
| {{convert| 14.803 |km|mi|abbr=on}}
| {{convert| 177.062 |km2|sqmi|abbr=on}}
| 
|-
| {{waterqual_title |desc= Test – Bourne Rivulet to conf Dever |asset= GB107042022700}} 
| {{waterqual_good}} 
| {{waterqual_fail}} 
| {{waterqual_mod}} 
| {{convert| 8.286 |km|mi|abbr=on}}
| {{convert| 32.01 |km2|sqmi|abbr=on}}
| 
|-
| {{waterqual_title |desc= Test – conf Dever to conf Anton |asset= GB107042022750}} 
| {{waterqual_good}} 
| {{waterqual_fail}} 
| {{waterqual_mod}} 
| {{convert| 3.869 |km|mi|abbr=on}}
| {{convert| 13.295 |km2|sqmi|abbr=on}}
| 
|-
| {{waterqual_title |desc= Test – conf Anton to conf Dun |asset= GB107042022670}} 
| {{waterqual_good}} 
| {{waterqual_fail}} 
| {{waterqual_mod}} 
| {{convert| 28.075 |km|mi|abbr=on}}
| {{convert| 56.88 |km2|sqmi|abbr=on}}
| 
|-
| {{waterqual_title |desc= Test – conf Dun to Tadburn Lake |asset= GB107042016460}} 
| {{waterqual_mod}} 
| {{waterqual_fail}} 
| {{waterqual_mod}} 
| {{convert| 8.439 |km|mi|abbr=on}}
| {{convert| 19.045 |km2|sqmi|abbr=on}}
| heavily modified
|-
| {{waterqual_title |desc= Test (Lower) |asset= GB107042016840}} 
| {{waterqual_good}} 
| {{waterqual_fail}} 
| {{waterqual_mod}} 
| {{convert| 8.579 |km|mi|abbr=on}}
| {{convert| 3.91 |km2|sqmi|abbr=on}}
| 
|}