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r.. <br /> ti. <br /> %W <br /> REPORT OF WASTE DISCHARGE FALLCREEK <br /> INC. <br /> '1.. <br /> ti- 4. WASTEWATER SYSTEM IMPROVEMENTS <br /> This section describes both the existing wastewater disposal system and the proposed wastewater <br /> improvements that the Winery will implement under their proposed expansion plan. Then a <br /> `► water balance and surface loading rate analysis are performed for the proposed system. <br /> 4.1 Existing System <br /> Prior to 2002, the Winery estimates that they crushed approximately 100 tons of grapes annually. <br /> Using the same peak wastewater generation methods described in 3.1.1, FCE estimates that <br /> approximately 425 gallons per day were produced during crush. Water during this time was <br /> ` collected in the existing floor drains and flowed to a pump basin. After entering the pump basin <br /> the water was piped to the oak grove where it was stored in a 1,000-gallon gondola. Once the <br /> gondola was filled, it was pulled behind a truck to the vineyards where the wastewater was <br /> applied to the fields. <br /> During the winter months, storm water collected in the winery drains was directed toward the <br /> ltbw onsite storm water detention area. The only losses from this area are infiltration or evaporation. <br /> I%, Although storm water runoff under the expansion plan will only increase a little, peak <br /> wastewater generation is expected to increase approximately fourfold. The rest of Section 4 <br /> �" describes the proposed wastewater system improvements under the proposed expansion plans. <br /> 4.2 Proposed Wastewater System Improvements <br /> The proposed wastewater system improvements include: <br /> #4.. <br /> `, 1. Installing a hyperbolic screen to remove gross solids from the wastewater. <br /> 2. A 5,000 gallon septic tank to settle out fine solids and to provide for anaerobic <br /> decomposition of wastes. <br /> 3. A subsurface flow wetland to provide for biological treatment of soluble organic matter <br /> ♦. and removal of the biological oxygen demand and suspended solids concentration in the <br /> wastewater, and reduction of the fixed dissolved solids, such as potassium in the <br /> wastewater. <br /> 4. A 0.6 acre land disposal system will be set up to provided for the final disposal of treated <br /> %W effluent. <br /> `, 5. The existing storm water detention area will be modified to provide additional storage <br /> capacity during winter months. <br /> %W Figure 4.1 shows a schematic of this proposed system. This section discusses each of these <br /> elements. <br /> `. <br /> r.. <br /> JESSIE'S GROVE WINERY 12 FEBRUARY 2004 <br />