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Lamar Gravel Wetland Delineation Ecological Resource Consultants,Inc. <br /> means that consider the characteristics of the surrounding areas". These definitions are the basis <br /> of this delineation. <br /> The wetland delineation was conducted according to the methodology enumerated in the 1987 <br /> Corps of Engineers Wetlands Delineation Manual (Environmental Laboratory, 1987). Field <br /> delineation methodology included establishing transects and making observation points at <br /> representative locations based on changes in wetland parameters. At each observation point the <br /> dominant vegetation, soils and hydrology were analyzed and documented by completing a Field <br /> Data Sheet. Based on the field observations, a wetland determination was made, the limits of <br /> plant community types delineated, and a wetland/upland boundary field flagged. Each <br /> determination point was identified in the field with pink "WETLAND BOUNDARY" ribbon or <br /> pin flag and was sequentially labeled alpha-numerically(i.e. A1,A2). <br /> Each determination point was recorded and mapped utilizing GPS technology (Trimble Geo-XH <br /> GPS Unit). Post processing differential correction provided mapping accuracy (horizontal) of+/- <br /> 2.0 feet. The enclosed Wetland Delineation Map dated August 31, 2007, represents the wetland <br /> areas identified by ERC within the study area.At the time of this report, digital base mapping was <br /> not available. Property boundaries were approximated based on available information. <br /> 5.0 Wetland Delineation Results <br /> ERC reviewed the Study Area and determined that there were no wetlands/waters of the U.S. <br /> present within the Study Area. The Study Area contains agricultural fields, access roads and a <br /> series of irrigation ditches. The irrigation ditches are manmade features which are periodically <br /> flooded in order to irrigate the adjacent agricultural fields. The majority of the ditches within the <br /> Study Area were dry at the time of inspection, although one was being utilized for agricultural <br /> purposes.Access roads crisscross the Study Area,creating eight distinct agricultural fields. <br /> Common vegetation within uplands throughout the Study Area includes field bindweed, clover, <br /> corn, barnyard grass, white onion and sunflower (Photos 7, 8, 9). These areas are generally <br /> characterized by dry soils and disturbed plant communities. Soils in upland areas ranged from <br /> grayish brown (IOYR 5/3) to dark grayish brown (IOYR 3/2). No surface or near surface <br /> hydrology indicators were observed within 16" of the soil profile. Common vegetation identified <br /> throughout the uplands is listed in Table 1. <br /> Table 1. Identified Upland Ve etation <br /> Scientific Name Common Name R .5 Indicator Status* <br /> Allium s . onion FACU <br /> Convoluvus arvensis field bindweed NI <br /> Echinochloa crus alli barnyard grass FACW <br /> Helianthus annuus sunflower FACU <br /> Tri olium pratense red clover FACU <br /> Zea mays corn NI <br /> UPL=obligate Upland-occurs an estimated 99%in non wetlands <br /> FACU=facultative upland-occurs an estimated 67%-99%in non wetlands <br /> FAC=facultative-equally occurs in non-wetlands as wetlands <br /> 4 <br />