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'~ p„~E~~~~.,,F United States Department of the Interior or 'r "~' n BUREAU OF RECLAMATION + ~ Upper Colorado Region _ ' Western Colorado Area Office _ 'q M~FCn Y'e 2764 Compass Drive, Suim 106 635E 2"' Avenue, Sui[e 300 Grand Jwc[ion CO 61506-8785 Durango CO 61301-5475 J~~ ~~~A V G® TRAVEL REPORT ~~~~~ Z 3 2005 WCG-KOzga & BMajor PRJ-15.00 ~ 2 ~ ~ Division of Minerals and Geology To: Ed Warner, Resources Division Manager From: Bob Major, Northern Facilities Maintenance Group Kathleen Ozga, Lands and Recreation Group Chief Subject: Mine Settling Pond Discharges into the Fire Mountain Canal, Paonia Project, Colorado Travel Period and Location: March 8, 2005, at Bowie #2 Mine, Bowie, CO Purpose: Review the status of Bowie's Discharge from its Settling Ponds. Reclamation has requested changes to the location of its settling pond discharges so as to prevent storm water discharge, directly or indirectly, into the Fire Mountain Canal (Canal), Paonia Project. Attendees: Dixie Luke, Paul Schmucker, and Merritt Denison (Fire Mountain Canal & Reservoir Co.) (FMCRC) Tom Alvey (North Fork Water Conservancy District) Bill Bear, Brad Hanson, and Jim Stover (Bowie Mine) Bob Major and Kathleen Ozga (Reclamation) Summary: Attendees visited each of the discharge ponds located above the Fire Mountain Canal (Canal), and Bowie #2 Mine (Bowie) personnel and consultant provided the following information, This was the fourth documented trip report (previous trips were conducted on Apri121, October 5, and October 26, 2004). Each pond is built to contain a 10-year frequency 24-hour duration precipitation event (1.8 inches) flood, but can control and pass using the emergency spillways, a 25-year 24-hour duration precipitation event (2.1 inches) flood. This is with the assumption that the level of water in the ponds has been lowered to designated levels that allows containment of the 10-year flood. Each pond is designed to have a controlled discharge spillway (gated discharge pipe or pump) and an emergency spillway. Sediment in the ponds is to be removed as needed to be able to contain the 10-year flood.