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SUMMIT ENGINEERING,INC. SUTTER HOME PROJECT N0200 W 15 Consulting Civil Engineers Irrigation&Effluent Application Rates BY: AM Phasc 2-100,000 TONS CHI:: GD Munth Reference ET' Pasture Crop Vineyard Crop Paatm'B ETd Vineyard ETd Precipitation` Irrigation Operating Percolation Assimilative Efllucnt Excess Rate of Coefficient" Coefficient` Demand[ Days per Capacity Capacity' Applied Capacity 13rlluent Monet, Applied, (in) (in) (in) (in) (Mgal) (d) (in) (Mgal) (in) (Mgal) (Mgal) (in) (Mgal) (Ihlaclday) January 1.2 0.80 0.00 (1.99 0.00 6.5 0.0 0.000 6 1.15 2.476 1.2 2.476 2.443 1.14 0.03; 2.44 February 2.0 0.80 0.00 1.57 0.00 5.4 0.0 0.000 5 0.96 2.063 1.0 2.063 2.060 0.96 0,003 3,04 M41-c11 3.4 11.80 0.00 2.73 0.00 5.2 0.0 0,000 12 2.30 4,952 2.3 4.952 2.549 1.19 2.403 1.49 April 5.1 0.90 0.16 4.59 0.82 2.3 2.2 4.833 13 2.50 5.365 4.7 10.198 1.153 0.54 9.1145 0.19 May 6.8 0.90 0.58 6.14 3.96 1.2 5.0 10.656 16 3.07 6.603 8.0 17.258 0.535 0.25 16.723 0.03 June 7.8 11.90 0.71 7.02 5.54 0.3 6.8 14.515 17 3.26 7.015 10.0 21.530 2.500 1.16 19.030 (1.11 July 8.1 0.90 0.64 7.25 5.16 0.0 7.2 15.509 30 5.76 12.380 13.0 27,889 2.934 1.37 24.955 0,22 August 7.1 090 0.45 6.42 3.21 0.1 6.4 13.669 31 5.95 12.792 123 26.462 3.600 1.68 22.862 5.01 September 5.4 0.96 0.26 4.86 1.40 0.6 4.3 9.218 30 5.76 12.380 111.11 21.598 5.900 2.70 15,798 15.91 October 3.7 0.90 0.07 3,35 0.26 1.7 1.6 3.514 16 3.07 6.603 4.7 10.116 7.500 3.49 2.616 59.86 November 1.8 0.80 0.00 1.44 0.110 3.7 0.0 11.000 14 2.69 5.777 2.7 5.777 3.955 1.84 1.822 16.58 December o.9 0.811 0.00 0.74 0.00 5.7 11.11 0.000 5 0.96 2.063 1.0 2.063 2.060 0,96 0.003 12.48 Total 53.4 47.1 20.3 32.7 33.5 71.91 37.44 80.469 70.9 152.38 37.09 17.3 115.29 117.360 Irrigation Area= Vineyard 0.00 acres Pasture 79.1 acres Available Irrigation Arca= Vineyard 0.00 acres Pasture 79.1 acres (a) Reference evapotranspiration rates based on ClMlS referance evapotranspiration map 1999. (b) K,coefficients lbr pasuire from Table 5-1,'Irrigation with Reclaimed Municipal Wastewater-A Guidance Manual"-California State Water Resources Control Board,July 1984(San Joaquin Valley). (c) K,cocfticients for vineyard from Wile 5-12,reference cited above. (d) ET=ET„Y K, A weighted valor is determined on the basis of the available irrigated acreage of vineyard and orchard. (e) Precipitation,100-year rainfall event,based upon rainfall data f rrr Lodi,CA (1) irrigation Demand=ET-Prceipitttirm,inches (g) Operation days per month based on NPRM data for 100 year RP. (h) A percolation rate of 0.125 inches per hour based on Condor Technologies Percolation Test Report dated Sept 1998 was applied fur the number of operating day's assuming a 24(tour day with a 6.4%reduction as a Safety Factor. (i) Assimilative capacity is the sum of irrigation demand and percolation capacity. {j) Avg Monthly flow adjusted by the ratio of Peak Day to Avg Day Peak Month and Avgerage Monthly BOD is also adjusted by 2.0 safety factor. Page 1 of 2 7/21/01