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4W
<br /> Wastewater Treatment System aaw
<br /> FALL CREEK
<br /> Engineering Report" ENGINEERING,INC.
<br /> Table 3.4. Water Balance Calculations for the System
<br /> in an High Rainfall Year (35.8 inches/year)
<br /> i WvI.d Grass I Slo—wer Deletion Area
<br /> P—m Saner sw—ler D-0 Wetland ET Worland Wetland D-1 Grass E— Dime
<br /> Moth Oow(gal) tnoff(gal) Rmnfall (gal) Sloragc Own— R—fall Grass ET Inlihrauon Water P-
<br /> VAW ET Inf lOauon Sloragc OceAlow
<br /> Pl(gal) Sl( p RWl(al) EWl( I) S Wl(all OWl(al) RGI(gal) EG,(gal) IGl(gal) OGt(gal) RPl(gal) EN(gal) IPI(gal) SPi(gal) Opt
<br /> Jam— 2055 213.851 33.834 5.309 69,618 439105 60,938 7.381 244.304 258.558 37,305 3,498 149.620 140.746
<br /> Febmary 6,962 181794 41.255 8.365 69.618 221645 57.354 11,630 244.404 22.965 35,111 9.621 149.620 39.580
<br /> March 7.707 154.509 31,670 16.257 69.618 177,629 44,028 22.601 244.404 - 26,953 19,242 149.620 - -
<br /> April 7,459 65,367 13.845 24.852 69,618 f,1,820 19.248 34.549 244.404 - 11.783 30,042 149,620 -
<br /> May 5,13835,529 7,283 34.433 69.618 13.517 10.124 47,869 244,404 - 6,198 43.983 149,620
<br /> Jarc 4,973 5.413 1,147 40.737 40,413 - 1.594 56,633 244.404 - 976 44,375 139.620 -
<br /> lulu 5,138 1,989 408 41.275 6,673 - 567 57,381 244.404 - 347 56,549 149.620 -
<br /> AOgon 30,830 494 101 36,124 1.973 - 141 50,220 244,404 - 86 48,499 149,620 -
<br /> Seplembe 39,725 14,538 3,079 27,079 42.237 4.281 37,646 244,404 - 2,621 36,325 149,620 - -
<br /> Ocwbe 43.675 64041 13.127 17,018 69,618 76.443 18.249 23,658 244,404 - 11,172 21,991 149,620 - -
<br /> Novembe 19,89() 111.223 23,558 8,694 69,618 145.977 32.750 12,087 244,404 - 20,049 9.621 149,6211 - -
<br /> Decembe 20,357 149,810 30,707 4 449 69.618 196.622 32.689 6.185 244,4(14 26,131 5.301 149,620
<br /> Tolyl 204.105 996,559 210.017 264.593 1,337058 291.962 167,810 2.932.851 281.52.1 178,734 331048 1.795.440 -
<br /> 3.4. Organic Loading Rates
<br /> `' FCE determined the expected monthly organic loading rates at Jessie's Grove Winery according
<br /> to the following equation:
<br /> L = 3.785*(CpQp +CsQj*(1—e.5epfrc)
<br /> —
<br /> 1,000,000*d*A
<br /> `' where L = BOD loading rate (kg BOD/ha-day),
<br /> `r Cp= concentration of BODS in the process water (assumed to be 5000 mg/L after
<br /> \r screening for coarse solids),
<br /> %W Qp= process water monthly flow rate,
<br /> Cs = concentration of BODS in stormwater (assumed to be 60 mg/L),
<br /> %W Qs = monthly flow rate of stormwater,
<br /> %W esepcic= septic tank's BOD removal efficiency (assumed to be 20%),
<br /> `, d=number of days per month, and
<br /> A = area of the wetland in hectares (0.0891 ha).
<br /> Table 3.5 presents the results of the calculations for the organic loading rates for the proposed
<br /> wetland treatment system under the current expansion plans. It also shows the hydraulic
<br /> detention time of both the septic tank and the wetland.
<br /> JESSIE'S GROVE WINERY MAY 2002
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