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STATE OF CALIFORNIA GEORGE DEUKMEJIAN,Governor <br /> CA FORN�IARIEGiONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION _m <br /> 3443 ROUTIER ROAD <br /> SACRAMENTO,CA 95827-3098 <br /> 11 January 1990 <br /> JAN 1 f <br /> Ms. Cheryl R. Mitchell , Ph. D. PERPJIIT; : <br /> California Natural Products <br /> P.O. Box 139 <br /> Manteca, CA 95336 <br /> HIGH TOTAL DISSOLVED SOLIDS, CALIFORNIA NATURAL PRODUCTS, 1250 E. LATHROP ROAD, <br /> LATHROP, SAN JOAQUIN COUNTY <br /> We are concerned about the high levels of total dissolved solids (TDS) in your <br /> wastewater and its potential impact on the underlying ground water. We consider <br /> your wastewater a designated waste since its TDS ranges from 2390 to 17,176 <br /> mg/1 , according to our data. Land disposal by irrigation for this type of <br /> wastewater is not acceptable. Therefore, we require you to submit a Report of <br /> Waste Discharge (RWD) and a time schedule for specific actions to comply with <br /> Subchapter 15 regulations, eliminate the discharge to land, or eliminate the high <br /> TDS in your wastewater. <br /> Our June and July 1989 samples, 17,176 mg/l and 2390 mg/l , respectively (see <br /> attachment) , were both analyzed using EPA method 160.1 where only minerals <br /> compose the TDS level ; carbohydrates, proteins, and fats are volatilized. <br /> Your RWD should include a complete waste characterization, representative of your <br /> waste stream. You should also consider recycling your wastewater if possible <br /> and investigate the TDS source, in order to consider eliminating it. The Report <br /> of Waste Discharge (enclosed) with the filing fee, and the time schedule is due <br /> to us by 2 March 1990. <br /> If you havvepny questions, please call Twila Leclerc at (916) 361-5673. <br /> I� Uv'4 <br /> ANTOeK J. VORSTER <br /> Senior Engineer <br /> TLL <br /> Attachments <br /> cc: Mike Huggins, San Joaquin County Public Health Services, Stockton <br />