2020-10-27_PERMIT FILE - C1981035 ‎(22)‎

• Permit No: C1981035
• IBM Index Class Name: Permit File
• Doc Date: 10/27/2020
• Section_Exhibit Name: KII Appendix 16 Dunn Ranch LBA Technical Resources Report
• Media Type: D
• Archive: No

2nd highest daily average PM,,concentration 8th highest daily average PM,.,concentration
2025 High Oil and Gas Scenario 2025 High Oil and Gas Scenario
2025 future year minus 2011 base year 2025 future year minus 2011 base year
- -
- 120 7
100 - a
1e
so ft
Lg-
60
40
9t" 2
20
10
5
4 0.5 0.1
-0.5 -0.1
- - - 20 - �- -2
-
t' - -- - 0 - _ .5
-60 i -
- -80 . 1 -10
._ -100 j -15
-I
-120
Fi9lm' Fi9fm'
O max(98,58)=121.7 µglm' O max(151,189)= 18.7 µfilm'
median= 0.2 µfilm' O min(147,180)_-12.8 µglm' median= -0.3 µfilm' O min(151,215)_-14.9 µg,'m'
Sth highest 1 hour daily max M02 concentration 4th High 8 Hour Avg Daily Max Ozone
2025 High Oil and Gas Scenario 2025 High Oil and Gas Scenario
2025 future year minus 2011 base year 2025 future year minus 2011 base year
- _ �+ 6
60
0 7
L 50
I 40
5
i 30
� 4
20
i -30 4
40 -6
50 7
-60 _g
ppb pp')
median= -0.9 ppb O max(67,141)= 64.1 ppb median= -2.2 ppb O max(61,102)m 5.2 ppb
O min(36,206)=-36.7 ppb (] minfl41,169)= -8.3 ppb
Figure 2.2-8 Cumulative Changes(future minus base) High Oil and Gas Scenario(Environ 2017)
2.2.6.2 Greenhouse Gases and Climate Change
Climate change is fundamentally a cumulative issue with global scope, and all GHGs contribute
incrementally to climate change, regardless of the emission's location, duration, or source type. The
multitude of interwoven natural systems and feedback mechanisms that contribute to climate variability
overthe entirety of the Earth makes analysis of this issue exceptionally complex.Climate scientists provide
for analysis by modeling changes to these systems in response to a range of global emissions scenarios
known as Representative Concentration Pathways (RCPs). RCPs are not fully integrated scenarios of
climate feedback, policy, emissions limits, thresholds, or socioeconomic projections, but rather a
Dunn Ranch Area LBA and Mining Plan Modification 37
Technical Resources Report