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Table S. Review of Performance Standards,expected(E)and observed(0) Performance Standard Community Condition Year 1 Year 2 Year 3 (2015) (2016) (2017) E O E O E O All Invasive plant cover(invasive cattail,purple :520 35.9 :520 520 loosestrife, and reed canary grass)(%) All Total vegetation cover(not including open - 280 280 water)(%) Wet Cover by native grass/sedge species(%) - - >30 Meadow Wet Cover by native forb species (%) - - 220 Meadow Wet Installed species present(%) - - >-33 Meadow Deep Marsh Planted species widely dispersed (#) - - >-6 DISCUSSION Grading has been completed at the Nelson Restoration site, resulting in the successful creation of a 0.5-acre Deep Marsh and a 2.14-acre Wet Meadow. The project was executed as designed, with the exception of slightly modified geometry of the Deep Marsh and the two meandering swales (Figure 3). As designed, the Deep Marsh filled during Spring/Summer 2015 and remained completely inundated into the fall. Simultaneously, the Wet Meadow became saturated and remained so throughout the growing season (with scattered small areas of intermittent inundation). During wetter periods, surface water was observed to be slowly leaving the wetland via the outlet culvert on the west edge. However, during our formal monitoring on September 2, 2015, no surface water was observed leaving the wetland. Initial vegetation establishment and management have also been completed at the site; however, after only one growing season, the wetland is still in its early stages of native plant establishment. Following grading activities in Winter 2014-2015, a modified native seed mix was installed in the thin-spread portion of the Wet Meadow. The original project phasing called for no native seeding until Spring 2015 (after herbicide treatments), but AES felt a partial native seeding could expedite native vegetation establishment while reserving the remainder of native seed for installation at a later date. While native vegetation clearly dominates the wetland with 72.3%cover(Table 4), as expected significant invasive species pressure continues due to invasive species propagules of seeds and tubers in the wetland soil. Invasive plant cover in the Wet Meadow zone (consisting of purple loosestrife and narrow-leaved cattail) has been greatly reduced from 100% prior to construction to 27% in the Wet Meadow sample plot (Table 3a); considering the entire Wet MN Board of Water and Soil Resources Nelson Restoration Site(12-0975)—2015 Monitoring Report 10