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3.2.4 pH <br />PH levels ranged from 6.88 up to 8.27 in the December 2006 through October 2008 sampling events. This range is <br />considered normal for groundwater. It is recommended that the CDPHE limits of 6.5 to 8.5 be used to evaluate pH conditions <br />at the site. <br />nH <br /> Wells (CRMW) <br /> Site/Group <br /> <br /> 01 02 04 05 06 07 09 16 40 41 42 A VG <br /> <br />Oct-05 ---- ---- --__ <br /> <br />Nov-05 <br />7.11 <br />7.17 <br />7.13 <br />7.13 <br />6.83 <br />7.20 <br />7.49 <br />7.24 <br />7.05 _ <br />710 <br />7.38 <br />7.17 <br />Dec-05 7.05 7.13 7.14 ---- 6.99 7.54 ---- ---- 7.08 7.06 ---- 7.14 <br />Apr-06 7.09 7.14 7.30 ---- 7.41 7.41 ---- ---- 7.16 7.12 ---- 7.23 <br />Jul-06 7.01 7.08 7.29 ---- 7.24 7.35 ---- ---- 6.93 7.10 ---- 7.14 <br />Oct-06 ---- 7.18 6.91 6.90 6.83 7.02 7.21 7.23 6.91 6.97 7.19 7.04 <br />Dec-06 7.28 7.30 7.10 ---- ---- ---- 7.36 7.33 ---- ---- ---- 7.27 <br />Apr-07 6.98 6.97 7.21 ---- 7.10 ---- 7.12 7.26 ---- 7.08 ---- 7.10 <br />Jul-07 ---- ---- 7.63 ---- 7.55 ---- 7.38 ---- ---- ---- ---- 7.52 <br />Oct-07 ---- ---- --__ <br />---- <br />---- <br />---- <br />Jan-08 7.02 7.10 7.15 ---- 7.44 ---- 7.52 7.43 ---- 7.07 ---- 7.25 <br />Apr-08 7.29 --- 7.01 ---- 7.62 ---- 7.26 7.55 ---- 6.93 ---- 7.28 <br />Jul-08' 8.00 ---- 6.90 ---- 7.99 ---- 7.85 8.16 ---- 8.27 ---- 7.86 <br />Oct-08 7.47 ---- 6.99 7.28 7.32 ---- 7.39 7.45 7.19 7.25 ---- 7.29 <br />Average 7.2 7.1 7.1 7.1 7.3 7.3 7.4 7.5 7.1 7.2 7 <br />3 7 <br />24 <br />Stnd . . <br />Dev. 0.3 0.1 0.2 0.2 0.4 0.2 0.2 0.3 0.1 0.4 0.1 0.28 <br />2007 <br />Baseline ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- <br /> <br />*TL... ---- <br />.- ---- <br />•" ""'•'? ?„ •„? "1.- •1.0 vuoc, lfu V uc IV ncn dI1Cr (IlC Sdifiunfig uvenr. <br />Annual 2008 Sampling Report -Lupton Lakes -11- December 2008