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CENTRAQ.LEY REGIONAL WATER QUALITY #*ROL BOARD <br /> INSPECTION REPORT <br /> 24 March 1985 <br /> DISCHARGER : LIBBEY-OWENS-FORD <br /> LOCATION & COUNTY : Lathrop, San Joaquin County <br /> CONTACT( S ) : Ron Quick, Technical Services Coordinator; <br /> Tom Koralewski , Senior Environmental Engineer <br /> INSPECTION DATE : 3 March 1986 <br /> INSPECTED BY : Jim Eckman <br /> ACCOMPANIED BY : Mr. Quick, Mr. Koralewski <br /> OBSERVATIONS AND COMMENTS <br /> This inspection covered three major areas: the wastewater treatment and <br /> disposal system; the soil and ground water contamination from the January 1985 <br /> autoclave oil leak; and the soil and possible ground water contamination from <br /> the February 1986 autoclave oil storage tank overtopping. I will address these <br /> areas separately. <br /> 1. The process and sanitary wastewater treatment and disposal system appeared <br /> to be functioning properly. The sanitary wastewater package plant (acti- <br /> vated sludge) was providing a clear effluent. The sludge blanket in the <br /> clarifier was within a foot or two of the water surface, but no carryover <br /> was occurring and movement of sludge to the RAS pump was apparent. A <br /> one-ton and a 150-1b chlorine cylinder were connected to the chlorinator <br /> with a vacuum auto-switch valve to assure a continuous chlorine supply. <br /> Another 150-1b cylinder was also available. <br /> The one million gallon concrete-lined storage pond looked clean, with no <br /> sheen or oil apparent. A few water weeds grow around its parameter. The <br /> cooling/ aerator sprayers were working on timers. No odor was present. <br /> The oil/water separator appears to be functioning well by the looks of the <br /> storage pond. <br /> 2. Attempted cleanup of the autoclave oil leak which occurred in January 1985 <br /> is on-going. A 12-foot deep conical pit was dug at the leak site last <br /> spring and any free oil encountered has been pumped out since then and <br /> discharged to the oil/water separator. Ground water was high at the time <br /> of the leak and receded in the spring, sunTner, and fall . Very little oil <br /> was found in the hole or the monitoring wells. <br /> It is apparent that the oil (approximately 7,000 gallons not yet recovered) <br /> is being held in the soil pore spaces. The major February 1986 storm <br /> caused ground water levels to rise. As they rose, free oil began appearing <br /> in the pit and in monitoring wells #10 (adjacent to the southwest corner of <br /> REVIEWED BY: iW <br />