Laserfiche WebLink
EXECUTIVE SUMMARY <br />A jurisdictional wetland delineation was conducted August 19, 2003 by Savage and <br />Savage within the boundaries of the Tucson site. The site was evaluated for the three <br />jurisdictional wetland criteria.; hydrophytic vegetation, hydric soils, and a hydrologic <br />regime indicative of inundation or saturation. Potential jurisdictional wetlands and waters <br />of the United States were identified and mapped within the site. Waters of the United <br />States (other than wetlands) were identified within the South Platte River. All of the <br />potential wetlands located on the site aze non-jurisdictional. Non jurisdictional potential <br />wetlands include a sideslope seep located along portions of the west boundazy of the site, <br />two depressions also located near the west boundary of the site, and a discontinuous Swale <br />ending at the earthen levee at the east boundary of the site. All of the previously <br />mentioned potential wetlands aze not surface connected to a tributary system and aze <br />therefore non jurisdictional according to the SWANCC decision of January 9, 2001. <br />Waters of the United States were not measured, as they aze not slated for disturbance. <br />INTRODUCTION <br />Savage and Savage was contracted by Aggregate Industries to delineate the Tucson site <br />thought to contain waters of the United States and potential wetlands. The Tucson site <br />consists of four pazcels comprising approximately 316 acres contained within the El/z and <br />SW'/a of Section 1 ar_d the NW'/s of Section l2, Township 1 South, Range 67 West of the <br />S+;ch P.:me Meridian, Adams County, Colorado. Thee parcels are situated rorth of <br />Colorado State Highway 7 and bisected by Tucson Street, the remaining parcel is located <br />south of Colorado State Highway 7. Generall;, the site is located between the South <br />Platte River to the east and the Brighton Ditch to the west. Currently, the site has several <br />ongoing land uses including agriculture (cattle feed, corn, and fallow- fields), a feedlot, <br />residential, and oil/gas production. Adjacent land uses include residential, agriculture, and <br />existing sand and gravel extraction operations. (Figure i, General Location Map) <br />The purpose of this delineation was to identify.and map potential wetlands and Waters of <br />the Unified States within the area of interest in advance of final planning for mineral <br />extraction and development of this area. Savage and Savage conducted fieldwork August <br />19, 2003. (Figure 2, Wetland Map) <br />SITE CHARACTERISTICS <br />Topography and Geomarphic Featares <br />The most significant topographic feature within and adjacent to the site is the South Platte <br />River, winch is located along the east boundary of the project site. The Tucson prcject <br />site is located on the primary alluvial terrace cf the South Platte River and slopes gently <br />Tucson Project Jurisdictional Welland Delineation and Detenninaticn Page t <br />