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ADRi RONAL INFORMATIONREQUIREMENTS <br /> TRI VALLEY GROH'ERS PLANT NO. 4 <br /> SAN JOAQUIN COUNTY <br /> Please provide the following information: <br /> 1. A summary of the regional groundwater quality related to the constituents in the <br /> wastewater, especially nitrate and dissolved solids was provided in the 21 August 2000 <br /> submittal. However, because no information on the screened/perforated intervals of the <br /> wells was included, the data is of limited use. Please submit information on the <br /> screened/perforated intervals of the wells for which data is available. <br /> 2. Describe any water treatment used to improve the quality of the supply process water or <br /> finished products (i.e. ion exchange or reverse osmosis) and the disposal of water <br /> treatment byproducts such as brines. The 21 August 2000 response to this question <br /> addressed the wastewater treatment rather than the water supply. <br /> 3. The 21 August 2000 submittal did not use the 100 year return total annual rainfall <br /> distributed monthly in accordance with normal rainfall patterns. Please resubmit the <br /> monthly water balance demonstrating whether there is adequate disposal capacity for the <br /> 100-year return period total annual precipitation, including consideration of at least: <br /> a. Local evaporation data <br /> b. Local precipitation data <br /> c. Projected future wastewater loading rates <br /> d. Projected long-term percolation rates <br /> e. Projected irrigation usage rates <br />