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Doug Hamm - 6821 152nd Avenue NW - Mave some problems with the <br />grade, Mr. Cook states that it will be going from a 3:1 to a <br />4:1. This may eliminate erosion but create more leachate because <br />you will be getting more absorption. Can't see where Waste <br />Management is giving the community a lot; you are giving us an <br />80,000,000 gallon septic tank full of leachate. How are you going <br />to control runoff and Spring flooding? If Waste Management has <br />been the majority user and possessor, why aren't they required <br />to put in shields, leachate system and drainage system, regardless <br />of the conditional use permit being granted. <br /> <br />Mr. Cook - Changing the slope from 3:1 to 4:1, the slope (in the <br />equation for water balance for a landfill site) is not one of the <br />major concerns for infiltration; it is the type of vegetation and <br />soil that you have on that slope. If you are going down to a <br />2% or 5% slope, then infiltration would be significantly increased. <br />In my presentation, I did not mean to imply that there are <br />80,000,000 gallons of leachate contained in that site right now. <br />The area that would be covered by the infiltration barrier <br />associated with the environmental improvements would prevent <br />80,000,000 gallons of leachate from being generated. <br /> <br />Mr. Doug Hamm - What about the leachate contained in the original <br />site? Will you pump all of it out and haul it away? <br /> <br />Mr. Cook - Leachate collected in the system would be removed on <br />a daily basis from that site. Leachate that is already in the <br />old landfill site is more than likely infiltrating the ground <br />water and there is nothing that can be done at this time. The <br />only thing that can be done is to construct an infiltration <br />barrier to stop the generation of leachate. <br /> <br />Mr. Doug Hamm - Waste Management is saying they will stop the <br />generation of 'new' leachate. <br /> <br />Mr. Cook - That is correct. <br /> <br />Mr. Doug Hamm - Why isn't Waste Management proposing adding <br />barriers on the East and West? <br /> <br />Mr. Cook - At this time, we feel these environmental improvements <br />proposed are the most reasonable to construct and would provide <br />the most benefit for what is being proposed. They will prevent <br />contamination from the proposed site from entering the ground <br />water and they will facilitate the reduction of generation of <br />leachate in the old site. <br /> <br />Nadene King - 6604 153rd Lane - If the existing landfill is <br />already leaching out, what does Waste Management have to offer <br />us by putting up the Northern expansion area? <br /> <br />Mr. Cook - In the existing site, if an infiltration barrier was <br />placed over the Northern area, it would reduce the amount of <br />leachate generated by approximately 80,000,000 gallons over a <br />twenty year period. <br /> <br />Council/P & Z <br />Public Hearing <br />Page 11 of 23 <br /> <br /> <br />