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<br /> Riechers Spence Associates Job #: 21 02 049.0
<br /> Consulting Civil Engineers Date: 10/23/2002
<br /> EHLERS FAMILY ESTATES WINERY
<br /> WASTEWATER POND WATER BALANCE GAL.
<br /> MONTH BEGINNING WASTE- I EVAPORATION RAINFALL IRRIGATION POND Water level SURFACE
<br /> VOLUME WATER IN OUT IN OUT BALANCE FT AREA s.f.
<br /> September 10,794 27,000 -4,012 2,689 -247,000 10,794 2.00 1,199
<br /> October 10,794 27,000 -3,078 6,050 -19,000 21,766 2.55 1,498
<br /> November 21,766 18,900 -2,282 18,151 0 56,535 4.10 2,460
<br /> December 56,535 13,500 -1,859 18,151 0 86,327 5.55 3,516
<br /> January 86,327 7,200 -2,551 21,512 0 112,488 6.51 4,298
<br /> February 112,488 10,800 -4,769 17,479 0 135,998 7.23 4,929
<br /> March 135,998 10,800 -10,364 18,151 0 154,585 7.77 5,426
<br /> April 154,585 8,100 -11,554 8,739 -272,000 10,794 5.96 3,842
<br /> May 10,794 10,800 -5,124 2,017 -386,000 10,794 2.00 1,199
<br /> June 10,794 12,600 -5,926 672 -54,000 10,794 2.00 1,199
<br /> July 10,794 15,300 -6,362 672 -62,000 10,794 2.00 1,199
<br /> August 10,794 18,000 -5,453 672 -272,000 10,794 2.00 1,199
<br /> YEAR 180,000 -63,334 114,955 -11312,000 JAVG: 4.14 AVG: 2,664
<br /> rona GeomeTry:
<br /> Max. WS from top= 2 ft. V = volume, in cubic feet (1 ft3 = 7.481 gallons)
<br /> Min. WS from top= 8 ft. d = water depth, in feet
<br /> Depth to bottom= 10 ft. pond-bottom dimensions are:
<br /> Length of pond= 118.5 ft. Bottom length = 58.5 ft.
<br /> Width of pond= 65 ft. Bottom width = 5 ft.
<br /> Side slopes= 3 :l inside and outside slopes on pond are 3:1
<br /> TOTAL SYSTEM VOLUME= 254,167 gallons maximum water depth = 8' (10' minus 2' freeboard)
<br /> MIN SYSTEM VOLUME= 10,794 gallons Berm Width= 12 ft.
<br /> MAX USABLE SYSTEM VOLUME= 154,677 gallons Height of Berm= 7 ft.
<br /> Number of geometrically equal Ponds: 1 Outside Berm Slope= 2 :1
<br /> MAX. STORAGE VOLUME REQUIRED = 154,585 gallons ADD. SYSTEM STORAGE = 92 gallons
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