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JD -6 Mine Environmental Protection Plan <br />Recent precipitation records are available from a private meteorological monitoring network located <br />approximately three miles from the JD -6 Mine on the proposed Pinon Ridge Mill site. Thirty five months <br />of precipitation data was obtained from this source, starting in May 2008 and ending March 2011 (Table <br />11). <br />Table 10. Monthly Climate Summary at Uravan, Colorado <br />November 17, 1960 - January 31, 2012 <br />Source. Western Regional Climate Center (WRCC), data download for station 058560 (Uravan, Colorado), May 8, 2012 <br />Table 11. Monthly Precipitation (in) Summary at the Proposed Pinon Ridge Mill Site May <br />2008 - March 2011 <br />Source. Meteorology Air Quality and Climatology Report (CDPHE website). <br />Table 12. Monthly Climate Summary at Montrose, Colorado <br />1895 - 2012 <br />22 <br />Source: Western Regional Climate Center (WRCC), data download for station 055722 (Montrose, Colorado) May 8, 2012 <br />3 The Pinon Ridge Mill site precipitation dataset is a compilation of automated precipitation gauge measurements supplemented <br />with manually- recorded precipitation gauge measurements (Kleinfelder, 2009). The automated precipitation gauge was out of <br />calibration during the period of May 1, 2008 through October 19, 2008. Manually- recorded precipitation measurements were <br />used in place of the automated measurements during this time period (Kleinfelder, 2009). <br />4148A.120927 <br />Whetstone Associates • <br />Jan <br />Feb <br />Mar <br />Apr <br />May <br />Jun <br />Jul <br />Aug <br />Sep <br />Oct <br />Nov <br />Dec <br />Annual <br />Average Max. <br />Temperature (F) <br />42.7 <br />49.8 <br />58.8 <br />67.5 <br />78.4 <br />89.4 <br />95.6 <br />92.4 <br />83.8 <br />71.4 <br />55.2 <br />43.3 <br />69.0 <br />Average Min. <br />Temperature (F) <br />15.4 <br />22.3 <br />29.2 <br />35.6 <br />44.5 <br />52.4 <br />59.6 <br />58.3 <br />48.5 <br />37.0 <br />26.6 <br />17.9 <br />37.3 <br />Average <br />Temperature (F) <br />29.1 <br />36.1 <br />44.0 <br />51.6 <br />61.5 <br />70.9 <br />77.6 <br />75.3 <br />66.1 <br />54.2 <br />40.9 <br />30.6 <br />53.2 <br />Average Total <br />Precipitation (in.) <br />0.86 <br />0.77 <br />1.02 <br />1.00 <br />0.94 <br />0.49 <br />1.18 <br />1.36 <br />1.47 <br />1.47 <br />1.01 <br />0.99 <br />12.58 <br />Average Total <br />SnowFall (in.) <br />3.8 <br />1.3 <br />0.5 <br />0.2 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0.2 <br />0.8 <br />4.2 <br />11.1 <br />Average Snow Depth <br />(in.) <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />0 <br />1 <br />0 <br />JD -6 Mine Environmental Protection Plan <br />Recent precipitation records are available from a private meteorological monitoring network located <br />approximately three miles from the JD -6 Mine on the proposed Pinon Ridge Mill site. Thirty five months <br />of precipitation data was obtained from this source, starting in May 2008 and ending March 2011 (Table <br />11). <br />Table 10. Monthly Climate Summary at Uravan, Colorado <br />November 17, 1960 - January 31, 2012 <br />Source. Western Regional Climate Center (WRCC), data download for station 058560 (Uravan, Colorado), May 8, 2012 <br />Table 11. Monthly Precipitation (in) Summary at the Proposed Pinon Ridge Mill Site May <br />2008 - March 2011 <br />Source. Meteorology Air Quality and Climatology Report (CDPHE website). <br />Table 12. Monthly Climate Summary at Montrose, Colorado <br />1895 - 2012 <br />22 <br />Source: Western Regional Climate Center (WRCC), data download for station 055722 (Montrose, Colorado) May 8, 2012 <br />3 The Pinon Ridge Mill site precipitation dataset is a compilation of automated precipitation gauge measurements supplemented <br />with manually- recorded precipitation gauge measurements (Kleinfelder, 2009). The automated precipitation gauge was out of <br />calibration during the period of May 1, 2008 through October 19, 2008. Manually- recorded precipitation measurements were <br />used in place of the automated measurements during this time period (Kleinfelder, 2009). <br />4148A.120927 <br />Whetstone Associates • <br />Jan <br />Feb <br />March <br />Apr <br />May <br />Jun <br />Jul <br />Aug <br />Sep <br />Oct <br />Nov Dec <br />2008 <br />- -- <br />- -- <br />- -- <br />- -- <br />0.61 <br />0.45 <br />0.2 <br />0.84 <br />1.08 <br />1.16 <br />1.19 <br />2.62 <br />2009 <br />0.46 <br />0.32 <br />0.61 <br />0.47 <br />1.91 <br />1.88 <br />0.93 <br />0.05 <br />0.55 <br />0.67 <br />0.54 <br />1.18 <br />2010 <br />1.13 <br />1.19 <br />1.89 <br />0.61 <br />0.4 <br />0.34 <br />3.11 <br />2.83 <br />0.78 <br />1.56 <br />0.76 <br />1.13 <br />2011 <br />0.12 <br />0.24 <br />0.46 <br />- -- <br />- -- <br />- -- <br />- -- <br />- -- <br />- -- <br />- -- <br />- -- <br />- -- <br />JD -6 Mine Environmental Protection Plan <br />Recent precipitation records are available from a private meteorological monitoring network located <br />approximately three miles from the JD -6 Mine on the proposed Pinon Ridge Mill site. Thirty five months <br />of precipitation data was obtained from this source, starting in May 2008 and ending March 2011 (Table <br />11). <br />Table 10. Monthly Climate Summary at Uravan, Colorado <br />November 17, 1960 - January 31, 2012 <br />Source. Western Regional Climate Center (WRCC), data download for station 058560 (Uravan, Colorado), May 8, 2012 <br />Table 11. Monthly Precipitation (in) Summary at the Proposed Pinon Ridge Mill Site May <br />2008 - March 2011 <br />Source. Meteorology Air Quality and Climatology Report (CDPHE website). <br />Table 12. Monthly Climate Summary at Montrose, Colorado <br />1895 - 2012 <br />22 <br />Source: Western Regional Climate Center (WRCC), data download for station 055722 (Montrose, Colorado) May 8, 2012 <br />3 The Pinon Ridge Mill site precipitation dataset is a compilation of automated precipitation gauge measurements supplemented <br />with manually- recorded precipitation gauge measurements (Kleinfelder, 2009). The automated precipitation gauge was out of <br />calibration during the period of May 1, 2008 through October 19, 2008. Manually- recorded precipitation measurements were <br />used in place of the automated measurements during this time period (Kleinfelder, 2009). <br />4148A.120927 <br />Whetstone Associates • <br />Jan <br />Feb <br />Mar <br />Apr <br />May <br />Jun <br />Jul <br />Aug <br />Sep <br />Oct <br />Nov <br />Dec <br />Annual <br />Average Max. <br />Temperature (F) <br />37.9 <br />43.9 <br />53.0 <br />62.4 <br />72.3 <br />83.2 <br />88.6 <br />85.7 <br />78 <br />65.6 <br />50.4 <br />39.2 <br />63.4 <br />Average Min. <br />Temperature (F) <br />13.6 <br />19.7 <br />26.6 <br />33.9 <br />42.1 <br />49.8 <br />55.7 <br />54 <br />45.7 <br />35.0 <br />24.0 <br />15.3 <br />34.6 <br />Average <br />Temperature (F) <br />25.7 <br />31.8 <br />39.8 <br />48.2 <br />57.2 <br />66.5 <br />72.1 <br />69.8 <br />61.8 <br />50.3 <br />37.2 <br />27.3 <br />49.0 <br />JD -6 Mine Environmental Protection Plan <br />Recent precipitation records are available from a private meteorological monitoring network located <br />approximately three miles from the JD -6 Mine on the proposed Pinon Ridge Mill site. Thirty five months <br />of precipitation data was obtained from this source, starting in May 2008 and ending March 2011 (Table <br />11). <br />Table 10. Monthly Climate Summary at Uravan, Colorado <br />November 17, 1960 - January 31, 2012 <br />Source. Western Regional Climate Center (WRCC), data download for station 058560 (Uravan, Colorado), May 8, 2012 <br />Table 11. Monthly Precipitation (in) Summary at the Proposed Pinon Ridge Mill Site May <br />2008 - March 2011 <br />Source. Meteorology Air Quality and Climatology Report (CDPHE website). <br />Table 12. Monthly Climate Summary at Montrose, Colorado <br />1895 - 2012 <br />22 <br />Source: Western Regional Climate Center (WRCC), data download for station 055722 (Montrose, Colorado) May 8, 2012 <br />3 The Pinon Ridge Mill site precipitation dataset is a compilation of automated precipitation gauge measurements supplemented <br />with manually- recorded precipitation gauge measurements (Kleinfelder, 2009). The automated precipitation gauge was out of <br />calibration during the period of May 1, 2008 through October 19, 2008. Manually- recorded precipitation measurements were <br />used in place of the automated measurements during this time period (Kleinfelder, 2009). <br />4148A.120927 <br />Whetstone Associates • <br />