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QUALITY ASSURED PACKING INC. <br /> ADDENDUM TO REPORT OF WASTE DISCHARGE <br /> Eu: t VLO <br /> MAY 1990 MAY 2 2 199.9 <br /> s-WRONMENTAL HEALTH <br /> INTRODUCTION PERMIT/SERVICES <br /> The purpose of this report is to provide additional details concerning <br /> proposed changes to wastewater treatment and disposal operations at Quality <br /> Assured Packing, Inc. The differences in proposed operation from the January <br /> 1990, "Report of Waste Discharge" involve the possible use of the storage pond <br /> for wintertime treatment and changes to pretreatment flow routing. Other <br /> details provided in this Addendum are for the purpose of clarifying previously <br /> described operations and impacts. Applicable county filing forms have also <br /> been attached as requested. <br /> WASTEWATER GENERATION <br /> According to QAP management, most of the expected increase in summertime <br /> wastewater flows will be from changes in plant flow routing to minimize labor <br /> and energy costs. Production is expected to increase less than 50% from last <br /> year's level over the next five years. <br /> Wastewater generation is expected to not exceed the flow rates given in the <br /> "Report of Waste Discharge" for the next five years except for June, when flow <br /> may reach 1,000,000 gpd. For the month of June, apricot processing will only <br /> be performed when market conditions are profitable. A reduced level of tomato <br /> processing may be performed in June in lieu of apricots. In either case, flow <br /> will not exceed 1,000,000 gpd on an average month basis. Daily peak flows <br /> towards the end of June could reach projected summertime levels. As was shown <br /> in the "Report of Waste Discharge", the land application facilities are <br /> adequate to handle 1 .5 Mgal/d in June. November through May flows are <br /> discussed in a later section. <br /> In the preliminary review of the original Report of Waste Discharge, questions <br /> were raised regarding the use of chlorine at the plant for disinfection and <br /> the resultant possibility of THM generation. QAP has been using hypochlorite <br /> solution to maintain a free chlorine level of 0. 1 ppm in their supply water. <br /> Chlorine has also been used for dump flume water disinfection. QAP plans to <br /> switch to chlorine dioxide for all their disinfection needs beginning this <br /> season, thereby eliminating the possibility of THM generation. <br /> CHANGES IN AVAILABLE WASTEWATER APPLICATION FIELDS <br /> Fields I and G as identified in Figure 1 of the Report of Waste Discharge will <br /> not be available for the 1990 canning season. This will leave 392 acres <br /> available for the 1990 season, still well in excess of the 246 acres <br /> recommended in the "Report of Waste Discharge" . <br /> 1 <br /> RP102-0 <br />