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Cover Alternatives Analysis <br />Alternative 2: Combination of Evapotranspiration for the Side <br />Slopes and a Geosynthetic/Soil Composite for the Top Deck <br />Advantages Disadvantages <br />• Landfill gas venting system may not • Still needs additional review for <br />be necessary. regulatory approval. <br />• Lowest storm water runoff than any • May be vulnerable to significant <br />other option. erosion during vegetation <br />• Infiltration lower than prescribed establishment period. <br />cover. • Intensive and challenging <br />cover/vegetation maintenance. <br />• Potential habitat for wildlife. <br />Grass on the side slopes compared to <br />engineered synthetic grass on the top deck <br />