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[[File:OGS-Protocol-Webpage-Image.jpg|thumb|300px|In lab testing of a Stormceptor<sup>(R)</sup> OGS device, here seen testing discharge rates and sediment effluent loads at St. Anthony Falls Laboratory in Minneapolis, Minnesota. (Saddoris, et al. 2010)<ref>Saddoris, D.A., McIntire, K.D., Mohseni, O., and J.S. Gulliver, 2010. Hydrodynamic Separator Sediment Retention Testing – Final Report. Minnesota Department of Transportation, St. Paul, MN.</ref>]]
[[File:OGS-Protocol-Webpage-Image.jpg|thumb|300px|In lab testing of a Stormceptor<sup>(R)</sup> OGS device, here seen testing discharge rates and sediment effluent loads at St. Anthony Falls Laboratory in Minneapolis, Minnesota. (Saddoris, et al. 2010)<ref>Saddoris, D.A., McIntire, K.D., Mohseni, O., and J.S. Gulliver, 2010. Hydrodynamic Separator Sediment Retention Testing – Final Report. Minnesota Department of Transportation, St. Paul, MN.</ref>]]
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[[File:OGS min Max.png|900px|thumb|left|Average, minimum and maximum sediment removal efficiencies for ISO 14034 verified OGS at seven surface loading rates (n = 10).]]
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[[File:OGS min Max.png|900px]]
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The graph above shows the average, minimum and maximum sediment removal efficiencies for ISO 14034 verified OGS at seven surface loading rates (n = 10).
==Scaling==
==Scaling==