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Quality Information

Pipeline: Black Hills Shoshone Pipeline, LLC
Location: Lane No. 9

Gas Gas Pressure Methane Ethane Propane i-Butane n-Butane i-Pentane n-Pentane C6+ Nitrogen CO2 Oxygen H2O H2S Specific
Gravity		 Heating
Value		 Wobbe
Day Temp psig Mole % Mole % Mole % Mole % Mole % Mole % Mole % Mole % Mole % Mole % Mole % (lbs/mmscf) (grains) (Dry) BTU (Dry) Calculation
04/04/2017 45 F 569 92.862 3.197 0.768 0.170 0.125 0.054 0.015 0.023 1.994 0.790 NA NA NA 0.600 1032.09 1332.42
03/03/2017 42 F 582 89.182 6.429 1.061 0.131 0.125 0.034 0.013 0.014 2.350 0.663 NA NA NA 0.618 1057.04 1345.05
02/06/2017 33 F 534 89.442 6.249 0.947 0.110 0.100 0.036 0.012 0.016 2.473 0.616 NA NA NA 0.615 1052.24 1341.66
01/11/2017 37 F 558 92.433 3.939 0.680 0.100 0.094 0.025 0.008 0.009 2.126 0.586 NA NA NA 0.599 1033.14 1335.11
12/02/2016 43 F 573 963445 0.602 0.152 0.025 0.034 0.011 0.009 0.008 1.423 1.292 NA NA NA 0.579 995.96 1308.89
11/07/2016 55 F 574 93.739 2.128 0.592 0.100 0.130 0.03 0.016 0.008 2.604 0.654 NA NA NA 0.592 1013.50 1316.79
10/06/2016 62 F 575 95.103 1.243 0.354 0.061 0.078 0.016 0.009 0.006 1.606 1.524 NA NA NA 0.588 1001.67 1305.95
09/04/2016 72 F 572 95.585 1.046 0.281 0.043 0.061 0.014 0.011 0.009 1.584 1.367 NA NA NA 0.585 1000.17 1308.11
08/04/2016 74 F 571 95.419 1.268 0.380 0.053 0.070 0.012 0.006 0.005 1.295 1.492 NA NA NA 0.587 1005.15 1311.93
07/06/2016 66 F 573 94.378 2.346 0.625 0.101 0.124 0.025 0.014 0.009 1.334 1.046 NA NA NA 0.592 1024.34 1331.10
06/03/2016 58 F 546 94.497 2.223 0.528 0.076 0.082 0.013 0.005 0.004 1.361 1.212 NA NA NA 0.591 1017.63 1323.83
05/09/2016 52 F 575 96.124 0.677 0.199 0.028 0.037 0.007 0.005 0.007 1.303 1.613 NA NA NA 0.582 995.09 1303.92
04/05/2016 76 F 434 86.205 7.168 2.042 0.247 0.311 0.039 0.019 0.003 2.342 1.625 NA NA NA 0.644 1076.83 1341.43
03/03/2016 99 F 467 86.5 7.13 2.009 0.249 0.315 0.041 0.02 0.008 2.194 1.533 NA NA NA 0.643 1076.83 1342.89
02/02/2016 88 F 580 86.463 7.106 2.063 0.259 0.324 0.041 0.023 0.013 2.191 1.518 NA NA NA 0.643 1078.36 1344.80
01/05/2016 79 F 579 87.594 7.038 2.006 0.261 0.316 0.040 0.017 0.005 2.017 0.706 NA NA NA 0.634 1086.30 1364.82
12/02/2015 71 F 529 89.441 5.573 1.563 0.199 0.248 0.029 0.013 0.004 1.791 1.139 NA NA NA 0.623 1062.74 1346.43
11/05/2015 78 F 596 86.829 7.332 2.074 0.244 0.305 0.038 0.023 0.013 2.291 0.853 NA NA NA 0.638 1085.10 1358.50
10/13/2015 59 F 544 87.492 6.857 1.919 0.236 0.297 0.036 0.02 0.009 2.163 0.973 NA NA NA 0.634 1078.49 1354.05
09/15/2015 123 F 504 86.927 7.086 2.002 0.243 0.304 0.037 0.018 0.005 2.246 1.133 NA NA NA 0.638 1079.23 1350.83
08/07/2015 61 F 553 87.395 7.032 1.927 0.229 0.283 0.035 0.021 0.012 2.272 0.795 NA NA NA 0.634 1080.34 1356.80
07/09/2015 88 F 487 86.609 7.193 2.031 0.262 0.325 0.042 0.020 0.007 2.126 1.387 NA NA NA 0.642 1080.290 1348.468
06/04/2015 54 F 552 87.187 7.017 1.909 0.230 0.290 0.038 0.022 0.010 2.263 1.034 NA NA NA 0.636 1077.82 1351.51
05/15/2015 95 F 574 87.525 7.009 1.957 0.239 0.295 0.038 0.023 0.010 2.272 0.633 NA NA NA 0.6328 1082.81 1361.19
04/07/2015 51 F 600 87.711 7.194 2.005 0.244 0.304 0.038 0.022 0.010 2.303 0.170 NA NA NA 0.6300 1089.65 1372.83

Gas samples taken monthly by Black Hills Shoshone Pipeline, LLC, when there is gas flow from the Northwestern Warren receipt point and delivery to the Lane No. 9 - Cody delivery point.

Polychlorinated Biphenyl (PCB) is listed as a contaminant in Section 9.2(c)(v) of Black Hills Shoshone’s FERC Tariff. However, at this time, based on the quality of gas delivered to its pipeline, Black Hills Shoshone does not collect information to quantify the Polychlorinated Biphenyl (PCB) content in natural gas flowing on its system. As a result, Black Hills Shoshone’s posted gas quality information does not include details on PCB content.

Dick McGuire, (307)527-3971

Calculations / Methods:  Real gas, 14.73 psia @ 60°F