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WASTE DISCHARGE REQUIREN—ATSORDER NO.R5-2003-0178 _3- <br /> MORADA PRODUCE COMPANY <br /> LINDEN PACKING SHED <br /> SAN JOAQUIN COUNTY <br /> 15. The RWD presents a water balance that demonstrates adequate storage and disposal capacity for <br /> the wastewater and stormwater that will be generated on site. Stormwater volumes were <br /> calculated using the 100-year return annual total distributed monthly in accordance with historical <br /> trends. Stormwater runoff amounts were determined with the rational method using a runoff <br /> coefficient of 0.95 for roofed/paved areas. <br /> 16. Wastewater and stormwater generation estimates are presented in the table below: <br /> Asparagus Cherry <br /> Month Wastewater) Wastewater) Stormwaterl'2 Total' <br /> January 0 0 600,629 600,629 <br /> February 128,400 0 566,669 695,069 <br /> March 142,157 0 401,885 544,042 <br /> April 137,571 0 198,454 336,026 <br /> May 0 142,157 155,201 297,358 <br /> June 0 137,571 29,134 166,706 <br /> July 0 0 5,002 5,002 <br /> August 0 0 7,342 7,342 <br /> September 0 0 32,163 32,163 <br /> October 0 0 137,475 137,475 <br /> November 0 0 292,994 292,994 <br /> December 0 0 323,144 323,144 <br /> All units are Gallons per Month. <br /> -' Stormwater calculated using 100-year return annual total distributed in accordance with historical pattern and <br /> the rational runoff method. <br /> 17. The Discharger's treatment of process wastewater consists of screening prior to discharge into the <br /> wastewater pond. Wastewater in the pond will be further treated through biological activity, <br /> settling, and volatilization of organic compounds. <br /> 18. The pond is approximately 150 feet by 145 feet, and is 15 feet deep. The storage capacity of the <br /> pond is approximately 1.46 million gallons. <br /> 19. The September 2002 RWD included an odor control contingency plan for the wastewater storage <br /> pond. If the pond generates odors, or if the dissolved oxygen level is less than 1.0 mg/L, then an <br /> aerator will be added to the pond. <br /> LAND APPLICATION SYSTEM <br /> 20. Wastewater is discharged from the pond to a 160-acre walnut orchard as shown on Attachment B, <br /> which is attached hereto and made part of the Order by reference. <br /> 21. Based on the RWD's water balance, the pond will go dry in September, even using the 100-year <br /> return annual rainfall amount. The pond will likely go dry earlier in the year during normal rainfall <br /> years. Because the wastewater does not provide enough water for irrigation of the orchard, <br />