|
L
<br /> 1..
<br /> FALL CREEK
<br /> REPORT OF WASTE DISCHARGE F.NGINF.FRTNG.TNT'.
<br /> Maximum Storage(SW ma.,and SPm,,). The wetland will be 4-feet deep. The lower two feet will
<br /> contain the soil back-fill and wetland gravel substrate(porosity assumed to be 0.33), and the
<br /> upper two feet will provide for freeboard in the basin. The normal storage capacity of the
<br /> �- wetland will be approximately 48,390 gallons. The two feet of freeboard will add an additional
<br /> `, 178,120 gallons for a maximum storage capability of 226,510 gallons.
<br /> The storm water detention area will be a total of 3 feet deep. The lower foot will be the normal
<br /> %W overflow storage, and there will be two feet of freeboard. The normal storage capacity of the
<br /> tea. storm water detention area will be 30,120 gallons. It will have a freeboard volume of 71,410
<br /> gallons for a maximum storage capability of 101,530 gallons. Total maximum storage for both
<br /> the wetland and the storm water detention area is 328,040 gallons.
<br /> '�kw Initial Conditions. The wetland was assumed to be at normal operating condition with the gravel
<br /> substrate pore spaces full of water, but no water in the free board volume on the first of January
<br /> ` each year. It was also assumed that there was no water in the storm water detention area.
<br /> Average and 100-year annual return rainfall years were modeled to assess the capacity of the
<br /> `, proposed wetland/land disposal system to manage wastewater and storm water discharged from
<br /> the winery utilizing calculated wastewater flow data. (Separate calculations were performed for
<br /> projected wastewater flows based on the 10-year expansion plan, and these calculations will be
<br /> presented in Section 5.)
<br /> Water Balance Calculation for Average Annual Rainfall
<br /> The estimated flow rates for the current expansion is approximately 0.2 million gallons of
<br /> process water generated per year. Table 4.2 presents the results of the water balance calculations
<br /> `, based on this process water estimate, and the storm water flow in an average rainfall year(0.5
<br /> million gallons). The water balance calculations show that during average rainfall years no all of
<br /> the wastewater and storm water will be detained in the wetland system and discharged to the land
<br /> disposal area, and there will be not overflow to the storm water detention area.
<br /> `•
<br /> `.r Table 4.2. Water Balance Calculations for the System in an
<br /> Average Rainfall Year(18.1 inches/year)
<br /> `. Wetland Grass Stormwater Detention Area
<br /> Process water Flow Storm-water Direct Wetland ET Welland Wetland Direct Grass Excess Direct
<br /> `r Month (gap runoff(gal) Rainfall (gal) Storage Outflow Rainfall Grass ET InfiItrotion Water Rainfall ET Infiltration Storage Overflow
<br /> Pt(gal) St(gal) RWt(gal) EWt(gal) SWt(gal) OWt(gal) RGt(gal) EGt(gal) IGt(Bal) OGt(gal) RPt(Sal) Elk(gal) IN(gal) SPt(gal) opt
<br /> l Initial Condition. - - - - 48,387 - -
<br /> �I January 2,055 106,963 22,857 5,535 48,387 126,340 60,959 14,762 488,809 - 10,496 3,093 84,161 -
<br /> February 6,962 103,967 22,217 8,721 48,387 124,425 59,252 23,259 488,809 - 10,202 5,412 84,161 -
<br /> March 7,707 79,566 17,003 16,949 48,387 87,328 45,346 45,203 488,809 - 7,807 10,824 84,161 -
<br /> April 7,459 33,848 7,233 25,909 48,387 22,631 19,290 69,098 488,809 - 3,321 16,898 84,161 -
<br /> May 5,138 17,154 3,666 35,898 38,447 - 9,776 95,738 488,809 1,683 24,740 84,161
<br /> June 4,973 2,797 598 42,471 4,343 - 1,594 113,267 488,809 - 274 24,961 84,161 -
<br /> July lhw5,138 994 213 43,032 - 567 114,762 488,809 98 31,809 84,161
<br /> un - -
<br /> Aug30,830 236 50 37,661 - - 135 100,440 488,909 - 23 27,281 84,161 -
<br /> ` Septembc 49,725 6,762 1,445 28,231 29,701 - 3,854 75,291 488,809 - 664 20,433 84,161 -
<br /> �Sr Octob<•r 43,675 26,402 5,642 17,742 48,387 39,291 15,047 47,317 488,809 - 2,591 12,370 84,161 -
<br /> November 19,890 60,063 12,835 9,064 48,387 83,724 34,231 24,174 488,809 - 5,894 5,412 84,161 - -
<br /> Decembe 20,553 78,100 16,690 4,638 1 48,387 1 110,7041 44,510 12,369 488,809 - 7,664 1 2,982 1 84,161 -
<br /> Total 204,105 516,853 110,449 275,852 594,442 294,560 735,680 5,865,702 - 50,716 186,215 1,009,935 -
<br /> %W
<br /> %W
<br /> war JESSIE'S GROVE WINERY 16 FEBRUARY 2004
<br /> %1W
<br />
|