07/15/2004 Env Bd Packet - Laserfiche WebLink

Home Search

ID: Basin B Page 3 of 4 - Hydrology Indicators -- Pit Water 9 to FAC Jurisdictional Transect Location Hydric Soil Depth 8 Primary Secondary Neutral Test tt Wetland? 1 2 Yes + >12 Inches NA No + >12 inches NA 9,10 Yes Yes NA No No 1 From USGS Hydrologic Unit Map. See also Minnesota Rules 8420.0540 Subpart 10 gore 2). 2 From NRCS Determination under the Food Security At of 1985 (if applicable). FW- Farmed Wetland; PC -Prior Converted Cropland; NW=Non - Wetland; W- Wetland; M- Not inventoried 3 Daubenmire scale: 6 - 95.100% cover, 5 =75-95% cover, 4 - 50-75% cover, 3 - 25-50% cover, 2 - 5-25% cover, 1- 0.5% cover. 4 OBL - Obligate Wetl and, occurs an estimated 99% in wetlands. FACW - Facultative Wetland, bas an estimated 67-99% probability of occurrence in wetlands; FAC = Facultative, is equally likely to occw in wetlands and non wetlands (34-65% probability); FACU - Facultative Upland has an estimated 1-33% probability of occurrence; and NI - No Indicator, denotes insufficient information available to determine an indicator status. Positive or negative signs indicate a frequency towards higher (+) or lower (.) frequency of occurrence in wetland within a category. B1anks in this column are due to gents level identification only. 5 Soil Survey Staff. Keys to Soil Taxonomy, Sixth Edition. US Department of Agriculture, Natural Resmaces Conservation Service, Washington, D.C. 1994. 6 US Depertrnent of Agriculture, Soil Conservation Service. Hydric Soils of the United Staten, Third Edition. National Technical Committee for Hydric Soils. Lincoln, NE. 1991. 7 US Department of Agriculture, Natural Resources Conservation Service. Field Indicators of Hydric Soils in the United States. G.W Hurt, P.M. Whited., and R.F. Pringle, (ads.). US Department of Agrioulhaa, Natural Resources Conservation Service, Fort Worth, TX 1996. 8 Positive Number indicates depth of i nrdation Negative Number indicates depth to free water. 9 Primary Hydrology Indicators Per 1987 Corps Wetland Delineation Manual: 1= Visual observation of inundation; 2- Visual observation of soil saturation; 3= Watermarks; 4- Drift lines; 5- Sednnerd Deposits; 6= Drainage Patterns in Wetland 10 Secondary Hydrology Indicators Per 1987 Corps Wetland Delineation Manual (two or more are required in absence of a primary indicator): 7- oxidized rhizospheres in upper 12 inches; 8= water- stained leaves; 9= Local Soil Survey hydrology data for hydric soils, 10- FAC Neutral test Note: Local sail survey hydrology data for hydria soils are not a valid secondary indicator of wetland hydrology "...if the site being delineated has been subject to substantial hydrologic alteration ". See Guidelines for Submitting Wetland Delineations to the St Paul District Corps of Engineers and Local Units of Government in the State of Minnesota, USACE Public Notice 96- 01078 -SDE, April 17, 1996, Page 25. Also see Clarification and Interpretation of the 1987 Manual, HQUSACE Memorandum, March 6, 1992, Page MI-14. 11 FAC - Neutral Test per 1987 Cops Wetland Delineation Manual Pat III, Indicators of Hydrophytic Vegetation Copyright Peterson Environmental Consulting, Inc