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|-
 
! Rowspan=2|Location
 
! Rowspan=2|Location
! Colspan=2|Runoff reduction
+
! Colspan=2|Runoff reduction, by length of strip
 
|-
 
|-
 
!2 - 5 m
 
!2 - 5 m
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'''NOTE:'''Water quality performance declines when vegetation cover on the filter strip falls below 80 %.
 
'''NOTE:'''Water quality performance declines when vegetation cover on the filter strip falls below 80 %.
[[Category:Water quality]]
+
[[Category:Performance]]

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