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the winter month~, Following the 6 month curing process, the product is ready for end <br />usc. Thc landfill is looking to usc that compost material as final cover on thc landfill and to <br />enhance soils on the site. The compost material will also be made available to thc pt.:,lic for <br />use on gar'~tcns and'lawns. <br />Steve Ko~i'oClge'~o.~eed'-e~t to address areas of concern. The major concern is odor <br />problems which result from poor management of compost sites. Odor problems are caused <br />by the bacteria that grow in a compost pile because it has turned anaerobic from lack of <br />oxygen. The remedy to compost piles turning anaerobic is turning the pile and keeping thc <br />moisture at a proper level. If odor does become a problem, there are other processes that <br />can be utilized to reduce odors. Another concern expressed is groundwater contamination. <br />The material in a compost pile is thc same material found in forests and not associated with <br />groundwater contamination. Some studies have been done on composting projects and <br />they indicate that there have not been significant contamination problems because of <br />composting sites. Steve noted that there arc monitoring wells in the vicinity of the <br />proposed composting site that are capable of detecting any contamination duc to thc <br />composfing facility. <br /> <br />CITIZEN INPUT <br /> <br />Sharon Dahlgren - 6328 143rd Lane N.W. - Inquired as to the proposed composting <br />method. <br /> <br />Steve Kollodge - Replied that the proposed compost method is the Rutger University <br />method, low level technology. <br /> <br />Sharon Dahlgren - Noted that Rutger has no research information regarding composting <br />grass clippings and inquired ff Waste Management is relying solely on Rutger's research. <br /> <br />Steve Kollodge - Replied that because of the high moisture content in grass, it is <br />responsible for a lot of the odor problems at a composting site. To remedy this, it is <br />proposed to place the g-rass clippings on the outer edges of the piles. <br /> <br />Sharon Dahlgren - Inquired as to how often the piles will be turned. <br /> <br />Steve Kollodge - Replied that typically, piles are turned once a month. The piles will be <br />monitored for temperature, oxygen and pH. <br /> <br />Sharon Dahlgren - Stated that she has found in her research that Rutger's manual is in the <br />process of being rewrinen. In order to minimize odors it is being recommended that one <br />part grass be mixed with 3 parts leaves and initially the piles should be turned once a week <br />for two weeks and every 10 days following that. The only way to achieve thorough <br />turning is with a windrow machine. Sharon explained that this method is being used in <br />Morris County, New Jersey, a 40,000 ton compost site, and there have been no complaints <br />about the operation. Sharon stated that without the proper mix of grass and leaves, there <br />will be odor problems no matter what the temperature and moisture levels are. Sharon <br />stated that yard waste is a large percent of municipal waste and people are looking to <br />recycle but them is not enough technology, available to indicate a successful compost project <br />of this size can be developed using a front end loader. <br /> <br />Planning & Zoning Commission Public Hearing/February 6, 1990 <br /> Page. 2 of 7 <br /> <br /> <br />