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FALL CREEK ENGINEERING,INC. (3) The winery retained Steve Muir to collect a sample of the first saturated zone underlying the proposed location of the constructed wetland. This information is presented in the revised Report of Waste Discharge. (See Page 5 of the revised report.) Please note that FCE does not believe that a groundwater investigation report was not prepared by Steve Muir. Mr. Muir collected the sample and requested that the lab forward the results to FCE. (4) Between the wetland, wetland freeboard, detention area, and detention area freeboard there is approximately 328,040 gallons of storage available for wastewater and stormwater detention. An analysis of runoff from the 100-year 24- hour storm(presented in Section 3.6 of the Engineering Report) found that approximately 108,400 gallons would needed to detain this storm volume. This volume is only 1/3 the total volume available for storage, which indicates that under normal monthly wastewater/stormwater flows the storage available exceeds the probable generation of stormwater. In the unlikely event that there is a stormwater/wastewater overflow from either the wetland or the stormwater detention area, the overflow volume is expected to remain on the property since the Winery facility and corresponding stormwater detention area is in the center of the property and isolated by several hundred feet from neighbors. (5) FCE has contact Shawn Hart with the San Joaquin Public Works Department, Stormwater Management Division. Me. Hart is aware of the project and will review the revised plans concurrent to you review. FCE will contact Mr. Hart at the beginning of March 2004 to review the project and determine if any additional information will be required related to this issue. (6) The land application area for wastewater/stormwater disposal at Jessie's Grove will be a 0.6-acre grassed field(see response 6 below for a discussion of land application size discrepancies). FCE believes that this land application area will generally be sufficient to dispose of the combined volume of wastewater and stormwater at the winery. This belief is supported by the water and salt balance, presented in both the RWD, which shows that infiltration and evaporation on the disposal field is sufficient to handle the applied water without ponding. In the rare instance that the disposal field will not be able to infiltrate the combined discharge for a given month, the stormwater detention area is sufficient to detain the rest. The (7) The actual land disposal area will be 0.6 acres. The water and salt balances, and nutrient loading rates have been revised in the reports to reflect this disposal field size. (8) All water balance calculations performed incorporate the assumption that the storage and overflow from the wetland in any given month will depend on the inflows and outflows for that month, as well as the initial volume of water in the wetland(the storage of the previous month). For example, in May the volume of water in storage would be equal to the volume stored in April plus any stormwater, wastewater, and rainfall inflows and minus evapotranspiration. If this volume is higher than the volume of storage available in the wetland(the pore spaces for the 2