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I I I I I I I I I i I I I I I I I I l, lr. Ramon Burton July 12, 1985 Page 3 PACE Laboratories, Inc. is currently dealing with several companies in the metal finishing and electro plating industry which are required to install pretreat~ent equipment to treat their wastewater streams prior to discharge in the sanitary sewer system. Several of these firms utilize caustic in their treatment process. We are in the process of contacting these firms to determine if sodium hydroxide slud§e could be used in their treatment processes. To make this waste exchange concept a reality we also need to discuss the MPCA requirements for transportation of the sludge to a local industry and the ability of the industry to receive the sludge as a raw product rather than a hazardous wastestream. Packaging of the sodium hydroxide sludge would be necessary if the sludge was sent off site to a hazardous waste disposal facility and most probably, if the 'sludge was sent to another industry in the waste exchange concept. However, the packa§ing would not be necessary if the sludge were treated on-site by Waltek, Inc. Freon Waste - Our inventory showed a total of 33 55 gallons drums containing freon waste. The majority of these drums were 1/4 to 3/4 full. All drums were closed head 17 E steel drums. Several of these drums would probably require repackaging prior to off-site shipment. Attached to this report is our laboratory analysis of the freon waste. We have also completed a Waste Research and Reclamation Spent Materials Survey form which should be reviewed, signed and forwarded to Mr. Gene Jameson at Waste Research & Reclamation Company along with a copy of our laboratory report. Itydrofluoric Acid/Nitric Acid Waste - It is our understanding that Waltek, Inc. only generates approximately 1 55 gallon drum of this ~astestream annually. Approximatly one drum of the waste is currently on-site. Again, the only hazardous property of this wastestream is its currositivity (see our attached laboratory report). It is recommended that t~is wastestream be neutralized on-site and discharged to either the Anoka Sanitary Sewer System or your drain field. Prior to neutralization .:nd discharge, permission will have to be obtained from'either the City ~f Anoka or the HPCA with respec~ to discharging tills wastewater stream ~o the drain field, or sewer system. Uur report of ~aboratory analysis is attached for the shell waste, .~rinding residue, and wheelabrator residue. Our analyses have shown t~ese three uastestreams to be non-hazardous. As suci~, we have completed and attaci~ed to this report the IqPCA, "Request for Co-Disposal of lion-Hazardous Industrial Waste" forms. These forms should be reviewd by ',-taltek, Inc. and if acceptaole signed. You will also need to obtain the ;i~n.'~ur~ of the sanitary land~ill opera~or ~.~here the waste ~ould be ..;i~.~U,..~ i'~]r disposal. ,JnCe ~:~l~_,,},.-~ ~ignatures i~ave bee~ obt. ained ~i~e