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2019 Municipal Plaza and Center Street Concept Stormwater Reuse <br />06/26/2019 <br />Page: 3 <br />U l.4 11 .. <br />��_�� ®.�.. • '._. _,,�F �, � "s®r��:�a•r.•: ft. r'� m;, ,_���;"1�;�_�o��vtier�,` °I 1.'r. -°I® a <br />5 7.D6 ' <br />." tom. 1 Y • .�.� '... Y, �x•. 1 '. . .. _,; -I 1 <br />7 <br />1 — 1'' r1 1. ' 1 .. , ° — . :JI B ' • 11 ' ' . ' .. U .M 1 <br />Exhibit 1: Excerpt from the Met Council Reuse Water Balance Tool. <br />Footprint Considerations <br />The storage volume could be a single concrete vault or multiple fiberglass underground units. <br />Given the size of individual cisterns, plastic is not available. Fiberglass tanks generally are <br />available up to 50,000 gallons in size. A 50,000-gallon tank has dimensions of approximately 68 <br />feet long with a 12-foot diameter. Three tanks, with space between, could fill a footprint of <br />approximately 5,000 square feet. Concrete vaults can be sized to fit multiple footprint sizes. If a <br />maximum active depth of water in the vault of 8' is assumed, the footprint would be approximately <br />2,500 square feet. <br />9 <br />t 7 <br />� r <br />q — _ iw <br />— <br />Exhibit 2: Example concrete vault storage tank (Storm Trap). <br />L <br />-11"N <br />� off,' ® - �, . •� L•,• <br />F W f&. i R- <br />Exhibit 3: Example underground fiberglass storage tanks (Xerxes). <br />