xcelenergy.com

SITE ID:	CBTC
NAME:	WGI (CHALK BLUFFS TO CHEY)
MONTH:	AUGUST 2010

DAY	HIGH HV(BTU/CF)	SPEC GRAVITY	WOBBE	CARBON DIOXIDE	OXYGEN	NITROGEN	METHANE	ETHANE	PROPANE	I-BUTANE	N-BUTANE	I-PENTANE	N-PENTANE	HEXANES PLUS	TOTAL
8/1/2010	1032.3	0.59	1343.9	1.144	0	0.506	94.86	2.775	0.479	0.08	0.085	0.025	0.019	0.027	100
8/2/2010	1022.2	0.5878	1333.3	1.268	0	0.717	95.244	2.185	0.375	0.068	0.075	0.023	0.018	0.027	100
8/3/2010	1022.4	0.5857	1335.9	1.173	0	0.652	95.47	2.195	0.325	0.06	0.066	0.02	0.016	0.023	100
8/4/2010	1015.4	0.5792	1334.2	1.035	0	0.671	96.328	1.677	0.188	0.033	0.036	0.011	0.008	0.013	100
8/5/2010	1006.2	0.5806	1320.5	1.302	0	0.949	96.136	1.4	0.151	0.023	0.023	0.006	0.004	0.006	100
8/6/2010	1018.6	0.5829	1334.2	1.145	0	0.662	95.957	1.771	0.291	0.056	0.062	0.019	0.015	0.022	100
8/7/2010	1013.9	0.5842	1326.5	1.305	0	0.818	95.781	1.665	0.273	0.051	0.057	0.017	0.013	0.02	100
8/8/2010	1019.6	0.5865	1331.4	1.264	0	0.752	95.448	1.986	0.357	0.063	0.069	0.021	0.016	0.024	100
8/9/2010	1019.6	0.5865	1331.4	1.264	0	0.752	95.448	1.986	0.357	0.063	0.069	0.021	0.016	0.024	100
8/10/2010	1025.1	0.5859	1339.2	1.13	0	0.567	95.597	2.092	0.377	0.075	0.084	0.026	0.021	0.031	100
8/11/2010	1010.8	0.5823	1324.6	1.294	0	0.839	95.978	1.57	0.206	0.037	0.041	0.012	0.009	0.014	100
8/12/2010	1016	0.5848	1328.6	1.28	0	0.788	95.655	1.832	0.282	0.053	0.058	0.018	0.014	0.02	100
8/13/2010	1025.6	0.5872	1338.4	1.148	0	0.636	95.322	2.262	0.408	0.073	0.08	0.024	0.019	0.028	100
8/14/2010	1025	0.5865	1338.4	1.109	0	0.665	95.324	2.32	0.394	0.064	0.068	0.019	0.015	0.022	100
8/15/2010	1018.8	0.5827	1334.6	1.119	0	0.667	95.906	1.887	0.267	0.051	0.054	0.017	0.013	0.019	100
8/16/2010	1018.9	0.5855	1331.6	1.225	0	0.761	95.504	2.041	0.297	0.055	0.061	0.019	0.015	0.022	100
8/17/2010	1001.4	0.584	1310.4	1.571	0	1.154	95.713	1.316	0.17	0.027	0.029	0.007	0.005	0.008	100
8/18/2010	1003.1	0.5846	1311.9	1.556	0	1.12	95.653	1.388	0.192	0.031	0.034	0.009	0.006	0.011	100
8/19/2010	1015.6	0.581	1332.4	1.125	0	0.689	96.059	1.821	0.207	0.034	0.036	0.01	0.007	0.012	100
8/20/2010	1006.5	0.581	1320.5	1.33	0	0.928	96.18	1.288	0.181	0.031	0.035	0.009	0.007	0.011	100
8/21/2010	1009.8	0.5844	1320.9	1.396	0	0.941	95.764	1.495	0.26	0.048	0.053	0.015	0.011	0.017	100
8/22/2010	1013.9	0.5865	1323.9	1.35	0	0.964	95.268	1.978	0.328	0.041	0.042	0.01	0.007	0.012	100
8/23/2010	1013.7	0.5867	1323.4	1.34	0	1.011	95.258	1.905	0.359	0.053	0.051	0.009	0.006	0.008	100
8/24/2010	998.6	0.584	1306.7	1.618	0	1.244	95.725	1.177	0.165	0.026	0.029	0.006	0.004	0.006	100
8/25/2010	998.7	0.5826	1308.4	1.56	0	1.2	96.001	0.979	0.174	0.03	0.032	0.009	0.006	0.009	100
8/26/2010	1003.7	0.5812	1316.6	1.387	0	1.023	96.091	1.285	0.146	0.025	0.026	0.006	0.004	0.007	100

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