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I I I I I I I I I I l I I I I I I I,Ir. Ramon Burton July 12, ]985 Page 2 Waste Inventory PACE Laboratories, Inc. with the assistance of Waltek, Inc. personnel conducted an inventory of all waste generated at Waltek, Inc. This inventory identified a total of 2 hazardous wastes and 4 non-hazardous wastestreams. The hazardous wastestreams identified at Waltek, Inc. uere: 1 } Sodium hydroxide sludge 2) Freon waste 2) Hydroflouric acid/Nitric acid waste. The non-hazardous wastestreams included grinding residue, wheelobrator residue, shell waste, and oil waste. · Sodium Hydroxide Sludge - Currently there are 21 55 gallon drums, l0 35 gallon drums and l0 l0 gallon drums of sodium hydroxide sludge stored on-site at Waltek, Inc. All drums are open head and appear to be full. The amount of water in ti~ese drums varies from being rock hard to slightly moist. Attached to this letter is our report of laboratory analysis of the sodium hydroxide sludge. Representative samples of the sludge were collected by PACE Laboratories, Inc. from a randomly selected number of the drums. The analysis shows that the only hazardous property exibited by the sodium hydroxide sludge is its pH of 13. This high pH classifies sodium hydroxide sludge as being corrosive. We have completed a Rollins Environmental Permit Application form for disposal of the sodium hydroxide sludge at a permitted hazardous waste landfill. This form needs to be reviewed by Waltek, Inc. and if acceptable signed and forwarded to: Mr. Gene Jameson Waste Research and Reclamation Company Route 7 Eau Claire, WI ~ased upon our preliminary discussions with Rollins Environmental it appears tliat the sodium hydroxide s}udge would have to be repackaged in 55 gallon drums or 85 gallon over packs prior to off site shipment. liowever, there are two other potential options for disposal of this waste ulrich are; on s~te neutralization and discharge to either the drain field ,~f tl~e sanitary sewer system; or identifing another ~ndus~ry that can use ~.~e w~s~e as a product in a .~;as~e exchange. [he feasibility of on-s~te neutralization of the sodium t~ydroxide sludge ~ou]d ~lave to be weighed against its cost verses off-site transportation to a disposal facility and the ability to discharge the resulting neutralized ~aste~./ater stream to either your drain field or to the An~ka Sanitary Sewer System. Ti~is option should only be considered if the :/aste excl~ange concept cannot i~e realized. We would recommend that a pilot study be performed on the soOium hydroxide sludge to determine the ,]~}st for neutralizing and ti~e feasiblity for discharging the treated ;.,-te,.,/qter into ~i~- ......... drain fi,~l,'l r~ .~o,~/m Sanitar,/~ ..... qe:~r c,~y~,t_m,:l...