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penetrating the surrounding environment. <br />Overlying the liner section is the leachate collection layer. The leachate collection layer consists <br />of either one foot of highly permeable drainage sand or a synthetic drainage material called a <br />geocomposite. The geocomposite is comprised of high density polyethylene channels <br />manufactured to rapidly convey liquids and is considered equal to the transmission capacity of <br />one foot of drainage layer sand. <br />6'" PERFORATE6 HDPE 56R 1' <br />LEACH ATE CLILLECT[G7J PIPE <br />\ <br />\y~ ~CDARSE ACCRGATE <br />-~ <br />1^c" GRANULAR QRAINACE LAYER _ <br />l <br />~ ! GEOTEXT]LE <br /> <br />te <br />~ <br />12' IHTERAEQ[ATE AGCRGA7E <br />__ ~. <br />~ <br />~ r <br />" <br />~ <br />~ ~ <br />pd y <br />1 ~~~ ~ ~ <br />-v, -Y3-. ~ J~ <br />% ~~ ~ ~ i• 6p ml1 H6PE CECMEA$RANE <br />3 <br />~~ E ~~ - ~~ ~•' ' "~`~ ~24° CLAY BARRIER LAYER <br />1 '~^ '-~1f3~~ \ ~~~IU: \ *\ ~~~~. \ Ik \\~~\ 1~7H~cii¢e.o ~.nr <br /> <br />Liner System <br />The final cover section is similarly designed with a layer of buffer material installed over the final <br />waste elevation prior to the placement of a 40 mil. linear low density polyethylene liner material <br />°. that is overlain by either a sand drainage material or a synthetic drainage material, <br />geocomposite. The final layer of the landfill cover section is a layer of soil material that can <br />sustain and promote vegetative growth. <br />z _ --_ _- _-:;_~~~~-TaPSOIL <br />~~ <br />z DUER SDILS <br />d. ~ z <br />N ~~ <br />EDNET <br /> <br />Cover System <br />EXTURED 40 mil <br />LL6PE GEDMEMBRANE <br />BUFFER SOILS <br />The landfill base liner, in conjunction with the final cover liner, completely encapsulates the MSW <br />materials from the surrounding environment. <br />Elk River Landfill SDA - - Section 1-3 <br />Land Use Application ~ ~~~~~~ <br />ELK NYIR LLwpflLi <br />