[[File:Surface loading groups 1 & 2 OGS Update.png|800px]]<br>
[[File:Surface loading groups 1 & 2 OGS Update.png|800px]]<br>
</br>
</br>
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'''''Graph Above''''': Sediment removal efficiencies for ISO 14034 verified OGS. '''Group 1''' units (n=10) are conventional OGS with large openings.<br>
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'''''Graph Above''''': Sediment removal efficiencies for ISO 14034 verified OGS. ''Group 1'' units (n=10) are conventional OGS with large openings.<br>
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'''Group 2''' units (n=2) contain additional components that filter or strain flows. Sediment removal performance results were relatively consistent across<br>
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''Group 2'' units (n=2) contain additional components that filter or strain flows. Sediment removal performance results were relatively consistent across<br>
different MTD designs, with slightly more variation at higher surface loading rates<br>
different MTD designs, with slightly more variation at higher surface loading rates<br>