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STATE OF CAI IFORNIA—HEALTH AND WELFARE&CY • GEORGE DEUKMEJIAN, Governor <br /> e 0 <br /> iDEPARTMENT OF HEALTH SERVICES <br /> 714/744 P STREET <br /> SACRAMENTO, CA 95814e <br /> (916) 324-1807 <br /> October 8, 1985 <br /> 0 <br /> Mr. Jim Schuck OCT 15 1985 <br /> Environmental Specialist ENViROMENTAL HEALTH <br /> American Environmental Management Corporation FERMIT/WWICES <br /> 11855 White Rock Road <br /> Rancho Cordova, CA 95670 <br /> Dear Mr. Schuck: <br /> This is in response to your letter of May 24, 1985 which requests <br /> verification that soil and waste materials contaminated with only <br /> crude oil at property in the City of Tracy owned by your client, <br /> Renown Enterprises, can be managed as nonhazardous waste. <br /> Information you submitted to us (Eureka Laboratories, Inc. Report No. <br /> A8524 and supporting documentation; completed Waste Classfication <br /> Form, May 23, 1985) indicates that the soil is contaminated with <br /> crude oil. It is the Department' s policy that soil contaminated with <br /> only crude oil may be managed as nonhazardous waste. <br /> However, the laboratory report shows that N-nitroso-di-n-propylamine <br /> (NDPA) is also present at a concentration of 13.270 mg/kg. NDPA, which <br /> is a common contaminant of the herbicide Trifluralin, has a reported <br /> acute oral LD50 of 480 mg/kg (Registry of Toxic Effects of <br /> Chemical Substances 1981-1982. NIOSH, June 1983) . Based on the <br /> information you submitted, the calculated oral LD of the waste <br /> mixture is greater than 5000 mg/kg (Section 66696?0c)) . Therefore, <br /> because of the low concentration of this contaminant and because the <br /> information you submitted indicates that crude oil is the only other <br /> contaminant, the soil may be managed as a nonhazardous waste. <br /> Since your client Renown Enterprises intends to establish a <br /> residential development on the property, the extent of contamination <br /> should be determined so that all the contaminated soil may be removed <br /> and properly disposed of. Disposal of the contaminated soil remains <br /> subject to the requirements of the Regional Water Quality Control <br /> Board. <br />