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<br />Enclosure 1. Site Inspection of Red Canyon Quarry in Red Creek <br />near Penrose, Teller County, Colorado, Action No. 199900354 <br />22 May 00 (continued) <br />Site 12. Lower crossing Lowest crossing of Red Creek <br />of Red Creek maintained by Red Canyon Quarry. <br />(0504429e, 4271877n) Creek at crossing is 15-20 ft wide <br />and dry. Paved crossing consists of <br />3 each 36" culverts. Large <br />quantities of sediment deposited <br />upstream of road crossing. Some <br />deposition (est 20-100 ft upstream <br />of crossing) apparently caused by <br />slack water due to elevate? road <br />embankment. Most deposition <br />apparently caused by loss of <br />velocity as stream widens across <br />valley floor upstream of crossing. <br />All fills at site comply with NWP#14 <br />and 26. <br />Site 13. Weiland pond Dry pond on stream, filled with fi <br />(est. 0504326e, 427319n) sediment. Structure reported <br /> breached during May 99 event. Some <br /> efforts to remove sediment using <br /> unknown equipment reported as <br /> unsuccessful. Structure not present <br /> on USGS topographic map dated 1994 <br /> (updated with 1988 aerial <br /> photography. If dam originally <br /> constructed prior to Section 404 <br /> phase-in in 1977 or was otherwise <br /> authorized, repair of dam would be . <br /> authorized by maintenance exemption. <br /> Sediment can be excavated from the <br /> pond provided the material is <br /> removed to an upland site. <br />Site 14. Swanson pond. Dry pond on stream, half filled with <br />(0504326e, 42770812n) sediment. Structure has wide <br /> grassed spillway and remains intact <br /> today. Structure present on USGS <br /> topographic map dated 1994 (updated <br /> with 1988 aerial photography) and is <br /> presumed to be grandfathered. <br /> Sediment can be excavated from the <br /> pond provided the material is <br /> removed to an upland site. <br />**Coordinates reflect the Universal Transverse Mercator (UTM) <br />coordinate system (NAD 27) Most coordinates were derived using a <br />global positioning system with accuracy varying between 5-10 <br />meters. Site 13 coordinat es were estimated by map inspection. <br />Positions were determined adjacent to described feature. <br />