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Po �ofCAL tR0yy4 CALIFORNIA REGI ' WATER QUALITY CONTROL BOAR Cal/EPA <br /> :_::....... CENTRAL V ION <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3098 <br /> Phone(916)255-3000 <br /> FAX(916) 255-3015 Pete Wilson Governor <br /> 5 November 1997 <br /> City of Manteca <br /> Public Works Department <br /> 1001 W. Center St. <br /> Manteca, CA 95337 <br /> Attn: Warren Shannon <br /> BIOSOLIDS PRE-APPLICATION REPORT <br /> We reviewed the biosolids pre-application report you submitted in compliance with Monitoring and <br /> Reporting Program Number 92-052. The proposed plan is acceptable as presented and you may <br /> implement the plan. <br /> Please note your existing permit No. 92-052, under discharge Prohibitions, A.3 states: " Application of <br /> sludge at rates in excess of the nitrogen requirements of the vegetation, or at rates that would cause the <br /> excess nitrogen or metals to leach to ground water, is prohibited". City of Manteca's Waste Discharge <br /> Requirements Order No. 97-115 (WDR's) Effluent Limitation B.2 states the following: "The Discharger <br /> shall maximize disposal of effluent to land at agronomic rates at all times. Therefore, the primary source <br /> for providing nitrogen to the crops in Manteca's fields should come from effluent. Only additional <br /> nitrogen that is needed during the growing season should be made up through biosolids application. <br /> As you are aware, the Board is concerned about the possibility of excess nitrogen getting into the ground <br /> water and making existing conditions even worse in an area where the ground water is already high in <br /> nitrates:It is imperative that you would exercise all considerable caution during the application of the <br /> biosolids to the soil, so that violations of applying excess nitrogen does not occur. <br /> If you have additional questions or concerns please feel free to call me at (916) 255-3028. <br /> V <br /> J ph J. Henao <br /> Project Engineer <br /> M. an Joaquin County Environmental Health, Stockton <br />