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Energy Fuels Coal, Inc. Southfield Mine - 2004 Annual Hydrology Report Apri[ 5, 2005 <br />TABLE 9 <br />STREAM FLOW MEASUREMENTS (cfs) <br />Quarter-Year Monitoring <br />Date Newlin <br />Creek <br />(Upper) <br />NC-2 Newlin <br />Creek <br />(Lower) <br />NC-1 Magpie <br />Creek <br />(Upper) <br />MC-1 Magpie <br />Creek <br />(Lower) <br />MC-2 Oak <br />Creek <br />(Upper) <br />OC-2 Oak <br />Creek <br />(Lower) <br />OC-1 Second <br />Alkali <br />Creek <br />SA-1 <br />1st - 1999 1/19/99 No flow No flow No flow No flow 0.56 0.54 No flow <br />2nd - 1999 4/8-5/5/99 10.5 9.5 16.0 20.0 1 .1 1 .2 0.45 <br />3rd - 1999 8/2/99 No flow No flow No flow No flow 4.5 4.2 No flow <br />4th - 1999 12/29/99 No flow No flow No flow No flow 1 .6 1.6 No flow <br />1st - 2000 03/29/00 No flow No flow No flow No flow i.6 1.6 No flow <br />2ntl - 2000 05/02/00 2,4 1 .6 No flow No flow 1.7 1.6 No flow <br />3rd - 2000 - - - No flow No flow No flow No flow No flow No flow No flow <br />4th - 2000 - - - No flow No flow No flow No flow No flow No flow No flow <br />1st - 2001 - - - No flow No flow No flow No flow No flow No flow No flow <br />2nd - 2001 05/22/01 No flow No flow No flow No flow 4.7 4.3 No flow <br />3rd - 2001 - - - No flow No flow No flow No flow No flow No flow No flow <br />4th - 2001 - - - No flow No flow No flow No flow No flow No flow No flow <br />1st - 2002 - - - No flow No flow No flow No flow No flow No flow No flow <br />2ntl - 2002 - - - No flow No flow No flow No flow No flow No flow No flow <br />3rd - 2002 - - - No flow No flow No flow No flow No flow No flow No flow <br />4th - 2002 - - - No flow No flow No flow No flow No flow No flow No flow <br />1st - 2003 - - - No flow No flow No flow No flow No flow No flow No flow <br />2n° - 2003 - - - No flow No flow No flow No flow No flow No flow No flow <br />3rd - 2003 - - - No flow No flow No flow No flow No flow No flow No flow <br />4th - 2003 - - - No flow No flow No flow No flow No flow No flow No flow <br />2n° - 2004 04/13/04 7.8 7.8 Minimal Minimal 0.03 0.03 No flow <br />4th - 2004 12!7/04 No flow No flow No flow No flow No flow No flow No flow <br />Notes: <br />1. Zero data values =parameter was analyzed (or but not detected. <br />2. Blank data felds = no data. <br />' Monitodn station moved accordin to Technical Revision No. 29 <br />Historic field and laboratory water quality data for surface water monitoring stations on Oak, Creek <br />aze summarized in Tables 12 and 13, Water Quality Data, Oak Creek. The 2004 water quality data <br />was reviewed graphically and statistically. Generally the surface water quality in 2004 is fairly <br />consistent with historic monitoring results. The 2004 results were compared to the historic average <br />for that location. The most significant differences are listed below. Note that occasional high <br />values can bias the average making comparisons difficult without a high level of statistical analysis. <br />2004 Monitoring <br />• Oak Creek Up Stream - No parameters were significantly different than the historical <br />average values; <br />• Oak Creek Down Stream - No parameters were significantly higher than the historical <br />average values. There were many pazameters, mostly metals, with 2004 results much lower <br />6417/2004 annualhydryt.doc NWCC INC. Page 25 <br />