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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 (10YR 5/3) to dark grayish brown (10YR 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 Vegetation <br />Scientific Name Common Name R g. 5 Indicator Status* <br />Allium s p. onion FACU <br />Convoluvus arvensis field bindweed NI <br />Echinochloa crus alli barnyard grass FACW <br />Helianthus annuus sunflower FACU <br />Tri olium ratense 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 />67