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Home My WebLink About20190752 Ver 2_Photograph log for PCN for flumes_20200226 Chemours Water Flow Monitoring Upstream view of Seep A North (facing north). Flow goes under the ground surface both upstream and downstream from this point. The flume would be positioned here. Seep A North showing variable flow above ground (foreground) and below ground (background in headcut) (facing north). Chemours Water Flow Monitoring Seep A Mid facing downstream toward Seep A North confluence (facing east). The flume would position in the foreground at this location. Seep A Mid has a very shallow but continuous flow (facing east). Chemours Water Flow Monitoring Seep A South facing downstream showing the shallow flow and sandy substrate (facing north). This will be the flume location. Seep A South facing upstream showing the sandy substrate. Chemours Water Flow Monitoring Approximately 50 yards upstream from the Seep A South flume location, bald cypress (Taxodium distichum) knees are present below the ordinary high water mark (OHWM) in the stream. Downstream view of the confluence of Seep A South (right) and Seep A Mid with the Cape Fear River in the background (facing east). Chemours Water Flow Monitoring Seep B North facing upstream has a well-developed channel at this flume location (facing north). Seep B North channel facing downstream (facing south). Notice that some wetland plants, primarily lizard’s tail (Saururus cernuus), are above the OHWM growing in seep water from the adjacent uplands that emerge through the upper portion of the stream bank above the OHWM. The flume will be positioned upstream from the seep in the defined channel. Chemours Water Flow Monitoring Seep B West facing upstream has a well-defined steep-sided channel emerging from the adjacent uplands/hillslopes west of the Cape Fear River floodplain (facing west). Seep B West facing downstream at the flume location (facing east). In the background of the photograph, the stream enters the Cape Fear River floodplain. Chemours Water Flow Monitoring Seep B South facing upstream toward a headcut in the channel (facing southwest). The channel is ephemeral above the headcut. Seep B South at the flume location facing downstream and showing the continual flow from groundwater (facing north). Chemours Water Flow Monitoring Seep B South facing downstream from the top of the headcut (facing north). The flume location is approximately 30 feet north of the headcut. Seep B South facing upstream from the top of the headcut (facing north). Notice that the channel is strictly ephemeral from this point south. Chemours Water Flow Monitoring Seep C facing upstream showing a well-defined channel that is suitable for the flume location (facing north). Seep C stream channel facing downstream (facing southeast). Notice that seep water is emerging from the adjacent hillside (right) and wetland plants are dominant, including bald cypress and lizard’s tail. The flume location is approximately 30 feet upstream from the wetlands. Chemours Water Flow Monitoring Typical upland soil near Seep C that was well-drained. This soil sample was taken approximately 20 feet up slope from the wetland soil shown below. Typical wetland soil found in the seeps near the Cape Fear River floodplain. Long-term groundwater interaction is the primary reducing condition, but infrequent backwater flooding from the Cape Fear River also contributes to the area hydrology and reducing soil conditions. Chemours Water Flow Monitoring Cultural Resources Summary Cultural Resources Assessment for Flume Locations along the Cape Fear Floodplain, Chemours Fayetteville Works, Bladen County, North Carolina No cultural resources investigations have been conducted along the Cape Fear floodplain east of the Chemours Fayetteville Works and no archaeological sites have been recorded. Limited archaeological investigations have been conducted in Bladen and southern Cumberland Counties. Prehistoric archaeological sites recorded in the general vicinity include small lithic and ceramic scatters associated with Archaic and Early, Middle, and Late Woodland period occupations located on several different types of landforms including along the bluff edges of the Cape Fear River, near drainage divides, and upland areas which may or may not be associated with Carolina Bays. Most of these sites represent limited occupations with little research potential to be considered eligible for listing on the National Register of Historic Places (NRHP). To date, no prehistoric archaeological sites have been identified on the floodplain or bluff slopes along the Cape Fear River. Archaeological site probability is expected to be low as this area has undergone extensive flooding and erosional episodes and any archaeological sites are expected to be heavily disturbed. The probability for intact prehistoric archaeological sites with research potential to address NRHP eligibility criteria is considered low. Historic archaeological sites recorded in the general vicinity include late 19th and early 20th century historic debris scatters (architectural and domestic debris). These sites represent dispersed scatters with little research potential to be considered eligible for listing on the NRHP. During the site visit in February 2019, several types of historic features were observed on the floodplain of the Cape Fear River and bluff slopes: short segments of rusted and partially downed fence lines, an old road bed, irrigation ditches, and several isolated glass bottles. Based on the archival research and archaeological observation, no historic buildings or structures were located on the floodplain; however, this area was used by local landowners as evidenced by the presence of the old road, the ditches, and the fencelines. The probability for intact historic archaeological sites with research potential to address NRHP eligibility criteria is considered low. The proposed locations of the flumes on the Cape Fear floodplain occur at the base of the bluff slope and cross cut the incised drainages. The flumes will be installed within the drainages and will not impact the drainage banks or adjacent floodplain areas. No archaeological sites are expected to occur within the drainages where the flumes will be located. Chemours Water Flow Monitoring U.S. Fish and Wildlife Service Coordination