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r <br />Capacity <br />• Total basin capacity shall be 126 m'/ha (1800 ft'/acre) of contributins drainage <br />azea. One half of this volume shall be in the form of a permanent pool, or wet <br />storage. The second half of this volume shall be in the form of a runoff storage <br />volume, or dry storage (see figure ..25). <br />CREST OF <br />EMERGENCI' SP1LL«'AY <br />PRINCIP:~L OUTLET <br />03 m (!') mirt 1 <br />---------- <br />H=03m(1')mi <br />"DRY" o <br />STORAGE c <br />0 <br />0 <br />EMB~ \'Ki11E \ T <br />°wEr° <br />STORAGE <br />OUTLET PIPE <br />Figure D-4 <br />Typical Sediment Pond <br />(COOT 1995) <br />