2010-02-01_REPORT - M1983194 (2)

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Well Pad Site 3A4H: The ground cover data in Table 6-9 is summarized by class of vegetation and cover type from data presented by plant species or cover type in Table A3. The production data presented in Table 6-10 is summarized from the annual above-ground vegetation biomass production for each plant species as shown in Table A3. The species composition data presented in Table 6-11 is summarized by class of vegetation from the percent composition of each plant species encountered as determined by each species contribution to total biomass production as shown in Table A3. The following tables compare the data collected in 2009 for well pad site 3A-4H to data collected from previous years as well as data collected in 2009 from nearby native rangelands. Table 6-9 - Ground Cover (%) for Reclaimed Well Pad 3A4H, July 2009 Change 2009 Native Similarity w/ 2009 2007 2008 2009 2008 to 2009 Rangeland Native Rangeland Perennial Grass 19.4 20.7 21.0 +1.4% 26.05 -19.3% Perennial Forbs 8.4 17.6 10.7 -39.2% 6.55 +38.7% Annual Grasses 0.4 0.0 0.5 +100% 1.00 -50.0% Weedy Forbs 1.7 0.2 0.4 +50.0% 0.25 +37.5% Shrubs 22.8 16.8 17.5 +5.7% 19.70 -11.1 % Moss/Lichens 0.0 0.0 0.0 0% 9.55 -100% Vegetative Litter 4.1 8.2 14.1 +41.8% 13.95 +1.0% Bare Ground 36.2 31.1 33.3 +6.6% 22.95 +31.0% Rock 7.0 5.4 2.5 -53.7% 0.00 +100% Total 100 100 100 ------- 100 --------- Table 6-10 - Biomass Production (lbs/ac) for Well Pad 3A411, July 2009 Change 2 2009 Native Similarity w/ 2009 2007 2008 2009 008 to 2009 Rangeland Native Rangeland Pere mal 55.0 45.3 Grass 194.00 5 5 +36.8 % 325.18 -24.5% nial Pe 51 3 r Fobs 66.80 . 3 97.41 -35.6% 106.01 -8.1% Annual Grass 4.40 0.00 8.64 +100.0% 15.53 -44.3% Weedy Forbs 17.40 0.85 5.43 +84.3% 6.52 -27.7% Shrubs 106.50 812.7 320.9 +6 7% 153 71 -21 3% . . . Total 389.10 420.0 4 77.7 +12.1% 606.95 -21 2% 6 . 2009 Annual Report 19 of 33