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PROCESS WASTEWATER DESIGN FLOWS <br /> SUMMIT ENGINEERING, INC. SUTTER HOME PROJECT NO 2001015 <br /> Consulting Civil Engineers Design Criteria BY: AM <br /> Phase 1 -50,000 TONS CHK: GD <br /> HARVEST DESIGN FLOWS <br /> Monthly Undiverted <br /> Percentage of Precipitation Monthly Flow <br /> Month Peak Flow" Monthly PW Flow Contributionb to Ponds <br /> (%) (Mgal) (Mgal) (Mgal) <br /> Auaust 26.4% 2,638 0.007 2.645 -- <br /> September 33.4% 3.330 0.071 3.401 <br /> October 40.2% 4.007 0.212 4.219 <br /> Total 100% 9.975 0.290 10.265 <br /> NON HARVEST DESIGN FLOWS <br /> Monthly Undiverted <br /> Percentage of Precipitation Monthly Flow <br /> Month Off Peak Flow' Monthly PW Flow Contribution to Ponds <br /> (Mgal) (Mgal) (Mgal) <br /> November 26.5% 2.967 0.133 3.100 <br /> December 22.7% 2.547 0.205 2.751 <br /> January 5.4% 0.607 0.233 0.840 <br /> February 8.5% 0.956 0.193 1.149 <br /> March 10.4% 1.169 0.184 1.352 <br /> April 7.7% 0.860 0.083 0.943 <br /> May 7.6% 0.847 0.042 0.889 <br /> June 4.6% 0.518 0.009 0.528 <br /> July 6.5% 0.729 0.001 0.730 <br /> Total 100% 11.200 1.083 12.283 <br /> a Monthly percentage of flow based on average of 1998 -2000 PW flow data for another Sutter Home Facility <br /> b Based on 100 year rainfall event and appropriate square footage adjusted by operating hours only. <br /> Page 1 of 7 <br />