Italian Creek ISF Proposal with Attachments 10-27-21

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9/23/2020 StreamStats Parameter Code Parameter Description Value Unit 124H100Y Maximum 24-hour precipitation that occurs on average 3.02 inches once in 100 years 124H2Y Maximum 24-hour precipitation that occurs on average 1 .42 inches once in 2 years - Equivalent to precipitation intensity index 161-1100Y 6-hour precipitation that is expected to occur on 1 .77 inches average once in 100 years 16H2Y Maximum 6-hour precipitation that occurs on average 0.86 inches once in 2 years LAT_OUT Latitude of Basin Outlet 38.951934 degree,, LC1 1 BARE Percentage of barren from NLCD 2011 class 31 6.5 percent LC1 1 CRPHAY Percentage of cultivated crops and hay, classes 81 and 0 percent 82, from NLCD 2011 LC1 1 DEV Percentage of developed (urban) land from NLCD 2011 0 percent classes 21-24 LC11 FOREST Percentage of forest from NLCD 2011 classes 41-43 59.6 percent LC1 1 GRASS Percent of area covered by grassland/herbaceous using 24.7 percent 2011 NLCD LC111MP Average percentage of impervious area determined 0.8 perceni from NLCD 2011 impervious dataset LC11SHRUB Percent of area covered by shrubland using 2011 NLCD 0.1 perceni LC1 1SNOIC Percent snow and ice from NLCD 2011 class 12 0.4 perceni LC11 WATER Percent of open water, class 11, from NLCD 2011 0.2 perceni LC11 WETLND Percentage of wetlands, classes 90 and 95, from NLCD 8.4 perceni 2011 LFPLENGTH Length of longest flow path 8.6 miles LONG—OUT Longitude of Basin Outlet -106.629434 degree,, MINBELEV Minimum basin elevation 9790 feet OUTLETELEV Elevation of the stream outlet in thousands of feet 9796 feet above NAVD88. PRECIP Mean Annual Precipitation 28.4 inches RCN Runoff-curve number as defined by NRCS 98 dimens (http://policy.nres.usda.gov/OpenNonWebContent.aspx? content=17758.wba) https://streamstats.usgs.gov/ss/ 2/7