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→Planning Considerations
<li>Check dams are required on slopes > 3 %. </li>
<li>Check dams are required on slopes > 3 %. </li>
<li>Slopes > 6% can accommodate a series of stepped [[bioretention cells]], each overflowing with a weir, into the next. </li>
<li>Slopes > 6% can accommodate a series of stepped [[bioretention cells]], each overflowing with a weir, into the next. </li>
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