Resolution - #93-12-285 Draft - 12/14/1993

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'1 :1 '1 I Mr. Naylor stated that when water comes into the plant it contains a lot of different things; a lot of it dissolves. What is left is a type of "nutrient broth" and that is put through a clarifying tank. Mr. Naylor stated that the amount of sludge used might be similar to what might be generated in Ramsey. Mr. Naylor assured Mr. Hendriksen that this would not be hazardous waste, it would be organic. Ms. Dahlgren inquired about the heavy metals to which Mr. Naylor replied there are probably heavier metals in yard fertilizer. He added that the concentrate of metal is too low to be hazardous. Mr. Naylor stated that the Environmental Protection Agency sets the guidelines for under what conditions one could get sick with regard to these metals, etc. Ms. Dahlgren stated that some guidelines are set but do not meet the standards. She stated ": to Mr. Naylor - "you do not have control". Mr. Naylor stated they do have control We would have contracts with our customers and if they have metals in their materials, we would not take them. He added that prior to a contract, they would ask to see a two-year record. I I I Mr. Hendriksen inquired how IPS would discover things that are not on the list of acceptable materials that might show up such as oils, varnishes, paints, etc. Mr. Naylor stated that he is not really concerned about those types of materials because the types of operations they would be picking up at would be restaurants and grocery stores, not hardware stores, etc. He informed Mr. Hendriksen that if they have an indication that something wrong was collected, they have to monitor each plug for the EPA, what went in, what temperature was achieved and where the material is in the bay and they would be able to tell where it came from. I i I ,I I I I I I Mr. Hendriksen inquired how that process could be done when the materials are mixed up in the beginning. Mr. Naylor stated that it is mixed up but you can keep track with the plug. Mr. Hendriksen stated there's a whole bunch of stuff in the landfill that's not supposed to be there either because it was "thrown in there when no one was watching". He inquired again how the company would be able to discover the unwanted material. Mr. Otter stated that at the collection point, the haulers will be trained to look into the container to check for unwanted materials, when it is brought to the facility, it will be dumped and will again be inspected. When it is loaded into the bay, it will be looked at again. He added that the employees will be trained to look for these things. He added that the customers will most likely want to provide only acceptable materials. Commissioner Stafki suggested that the concerns mentioned tonight appear to be unnecessary because the compost is not going into the ground at the facility, it will be marketed. Mr. Hutchison inquired if the company has identified its source for the activated sludge to which Mr. Naylor replied no. Mr. Otter stated with regard to the landfill property, they have discussed industrial developing and/or selling land to be developed. He also mentioned developing an energy park, of sons. He assured the residents that WM is not proposing another land ~l but that something has to go there because they are paying a lot of taxes. He commented on the landffil cover and stated that the pumpout systems are well under way. Ms. Lemke stated that the wetland in the park area of Hunter's Hill is gone. 7