Laserfiche WebLink
March 7006 Hoydex Gulch Loadout -7005Axxual Hydntogy Report ~ Page 1 <br />1.0 INTRODUCTION <br />. The information assembled in this 2005 Annual Hydrology Report (AHR) includes data collected from <br />the hydrologic monitoring sites for the 2005 calendar yeaz at Hayden Gulch Terminal, Int.'s (HGTi) <br />Hayden Gulch Loadout (Loadout) facility, which is permitted by the Colorado Division of Minerals <br />and Geology (CDMG) under Mine and Reclamation Permit No. C-92-081. The AHR has been <br />prepazed and submitted in accordance with Rule 4.05.13(4)(c). <br />Locations of the hydrologic monitoring sites are shown on Figure 1, Monitoring Site Lacatiaxr. <br />Hydrologic monitoring is performed for surface water, groundwater and Colorado Wastewater <br />Dischazge Permit System (CDPS) outfalls. In addition, the sediment impoundments ate inspected <br />quarterly in accordance with Rule 4.05.9(1. Water monitoring requirements for the Loadout aze <br />found in Tab 13 of the existing, valid Mining and Reclamation Pemut (renewal date of May 2002). <br />Two surface water sampling sites, HGSD1 and HGSD3, aze located on Dry Creek upstream and <br />' downstream of the primary disturbance area, respectively. Two groundwater monitor wells, HGDAL3 <br />and HGDAL4, aze completed in the Dry Creek alluvial system - HGDAL3 is located downstream of <br />the primary disturbance azea. Monitor well HGDAL4, which is located upstream of the disturbance <br />area, was installed in November 2005, and sampled once during December 2005. This well was <br />installed to address CDMG concerns regazding background alluvial water quality upstream of the <br />Loadout facility. <br />Surface water and groundwater monitoring at the Loadout occurs on asemi-annually basis, once <br />during spring runoff conditions (April through June) and once during fall low flow conditions <br />(typically during October or November). CPDS monitoring was conducted weekly during the <br />' snowmelt mnoff season (Mazch, April and May) and at a minimum of monthly during the remaining <br />months. <br />In accordance with Section 25-9-101, et seq., C.R.S., the sedimentation ponds at the Loadout facility, <br />which serve as a wastewater handling system, aze operated under the supervision of a certified <br />industrial wastewater system operator. Hydro-Environmental staff includes a testified Level D <br />operator. The Colorado Department of Public Health and Environment (CDPHE) certified that <br />' HGTI was in full compliance with Section 25-9-101, et seq., C.R.S. on June 30, 2004. <br />Hydro-Environmental Solutions, Inc. <br />P.O. Bax 777996 <br />57 10v Stnet, Suifr B <br />Steamboat Springy CO 80477 <br />(970f 871b12S <br />