Laserfiche WebLink
that additional volume is reached. <br /> <br />Don Otter replied that adding 635 acre feet would take about 2-4 years at <br />current volume rates; that time period could be shorter or longer depending <br />on volume rates; when that volume is reached the landfill will close. Mr. <br />Otter noted that the landfill will continue to settle and it would have <br />been below the height restrictions if the airport had ever developed. Mr. <br />Otter also noted that the final layers to the landfill will have less <br />differential waste settling. <br /> <br />John Heinen - Inquired if all waste will have to be incinerated by 1990. <br /> <br />Don Otter stated that State law says there will be no mixed municipal waste <br />landfills by 1990 but he doesn't believe that target date will be met. He <br />also does not believe the County will be looking at mixing ash with an <br />existing solid waste landfill. <br /> <br />John Heinen - Noted that there is already water contamination due to <br />decomposition of trash at the landfill; the vertical expansion will allow <br />another 2.5 years worth of moisture to wash the contamination down into the <br />water system. Inquired if the incoming trash will be screened to be sure <br />it is normal household waste. <br /> <br />Mr. Otter stated that hazardous household waste did not create the <br />contamination at the landfill, it was commercial waste accepted at the site <br />in it's early years. In regards to leachate, that process will be going on <br />that much longer during vertical expansion but at the same time the <br />groundwater recovery system will be in and recovering that water for as <br />long as it takes to clean it up. <br /> <br />Joe Galindo - 15645 Traprock Street NW. - Stated that he knows a person <br />that would bring semi-loads of chemicals into the landfill in the early <br />1970's and it would be accepted and covered; why aren't those barrels dug <br />up? <br /> <br />Mr. Otter stated that evidence of those chemicals have been found in the <br />groundwater; Waste Management has ceased to accept those chemicals since it <br />took over the site in the late 1970's; he wished the barrels were extracted <br />because now it is costing $14,000,000 to clean up the contamination. <br /> <br />Joe Galindo - Noted that those chemicals are heavier than water and will <br />continue to go down; can all that contamination be pumped out of the <br />groundwater? <br /> <br />Mr. Otter stated that Waste Managment has made a commitment and signed a <br />consent order to clean up the site; the chemicals buried on the site were <br />not defined as hazardous waste until the late 1970's. Not all of the <br />contamination can be pumped out of the groundwater but Waste Management is <br />designing a final cap to not allow any more infiltration. <br /> <br />Judy Kyker- 14157 Cobalt Circle N.W. - Stated that contamination will <br />permeate 10-20 feet per year. The additional time for the vertical <br />expansion will permit contamination to go down pretty low and that acquifer <br />furnishes water for everyone. Pumping all of the contaminated groundwater <br />Planning & Zoning Public Hearing/August 2, 1988 <br /> <br />Page 3 of 7 <br /> <br /> <br />