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Post-Winter Ozone SeasonPublic Meeting
June 26, 2019
Boulder Community Center
Boulder, WY
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0.020
0.030
0.040
0.050
0.060
0.070
0.080
0.090
0.100
0.110
0.120
8-H
ou
r O
zon
e D
esig
n V
alu
e (
pp
m)
3-Year Design Value Periods
8-Hour Ozone Design Value Comparisons
Upper Green River Basin-Boulder,WY Uintah Basin-Ouray, UT Los Angeles-South Coast Air Basin, CA Ozone NAAQS
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0
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14
16
18
20
22
24
Nu
mb
er o
f H
ou
rsNumber of 8-hr Ozone Averages for AQI Health Effect Levels
Boulder March 2019
Very Unhealthy
Unhealthy
Unhealthy for Sensitive Groups
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Wintertime Ozone
Two of the few places
that experience
wintertime ozone
Wyoming’s Upper
Green River Basin
Utah’s Uinta Basin
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UGRB Progress
Concerned citizens
Environmental groups
Industrial operators
Local government
County government
State government
Federal government
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What do we know aboutozone and health?
EPA’s Integrated Science
Assessment (ISA)
● Assessment of the current
scientific studies and
knowledge about the effects of
ozone on public health
● Scientific basis for the
establishment of the most
current national air quality
standards for ozone
● New ISA coming out in 2020
https://www.epa.gov/isa/integrated-science-assessment-isa-ozone-and-related-photochemical-oxidants 7
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What do we know aboutozone and health?
https://www.epa.gov/ground-level-ozone-pollution/health-effects-ozone-pollution
https://www.cdc.gov/air/ozone.html
8
● Causal relationship between short-term ozone
exposure and respiratory health effects
● People most likely to experience health effects caused
by ozone include:○ Children
○ Older adults
○ People with asthma, emphysema, or other lung diseases
○ People who exercise or work outside
● Health effects can include:○ Cough, shortness of breath, wheezing, throat irritation
○ Asthma symptoms and increased need for asthma medication
○ Healthcare visits for respiratory symptoms
● Varying levels of evidence for effects on other organ
systems and effects of long-term exposure
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8-hour Average
Ozone (ppb) Category EPA-Recommended Actions
0-54 Good None
55-70 Moderate There may be a small number of people who are unusually sensitive to this level of
ozone. Those people should consider reducing prolonged or heavy outdoor exertion.
71-85 Unhealthy for
sensitive groups
People with lung disease (such as asthma or emphysema), children, older adults, and
people who are active outdoors should reduce prolonged or heavy outdoor exertion.
86-105 Unhealthy People with lung disease (such as asthma or emphysema), children, older adults, and
people who are active outdoors should avoid prolonged or heavy outdoor exertion.
Everyone else should reduce prolonged or heavy outdoor exertion.
106-200 Very Unhealthy People with lung disease (such as asthma or emphysema), children, older adults, and
people who are active outdoors should avoid all outdoor exertion.
Everyone else should reduce outdoor exertion.
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Ozone and Occupational Health
http://wyomingworkforce.org/_docs/news/whatsnew/2018-11-14-occupational-ozone.pdf 10
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Winter Ozone SeasonInter-Agency Approach
DEQ, DEQ-AQD, Department of Health,
Governor’s Office, Legislature
1,145+ staff hours DEQ-AQD January – March
Primary Point of Contact
AQD Ozone Team [email protected]
Video segments
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Emissions OffsetThrough Permitting
-7000.0
-6000.0
-5000.0
-4000.0
-3000.0
-2000.0
-1000.0
0.0
Ton
s o
f Em
issi
on
s O
ffse
t/R
ed
uce
d
Tons of VOCs and NOx Emissions Offset/Reduced Through Permitting
* Emissions offset/reduced through May 1, 2019** Does not include emission reductions from the existing source rule
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Emissions Inventory
0
2
4
6
8
10
12
14
16
2011 2014 2015 2016 2017 2018
Ton
s P
er
Day
Year
Non-Road Mobile
Other Sources
Truck Loading
Completions & Workovers
Drill Rigs
Venting & Blowdown
Fugitives
Total Pneumatics
Dehydration Units
Tanks
Heaters
Production Site Engines
Compressor Station Engines
Feb-Mar UGRB Ozone Nonattainment AreaActual NOx Emissions
0
10
20
30
40
50
60
70
80
90
2011 2014 2015 2016 2017 2018
Ton
s p
er
Day
Year
Non-Road Mobile
Other Sources
Truck Loading
Completions & Workovers
Drill Rigs
Venting & Blowdown
Fugitives
Total Pneumatics
Dehydration Units
Tanks
Heaters
Production Site Engines
Compressor Station Engines
Feb-Mar UGRB Ozone Nonattainment AreaActual VOC Emissions
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Winter 2019 Forecasting
0
5
10
15
20
25
Jan
. 01
Jan
. 03
Jan
. 05
Jan
. 07
Jan
. 09
Jan
. 11
Jan
. 13
Jan
. 15
Jan
. 17
Jan
. 19
Jan
. 21
Jan
. 23
Jan
. 25
Jan
. 27
Jan
. 29
Jan
. 31
Feb
. 02
Feb
. 04
Feb
. 06
Feb
. 08
Feb
. 10
Feb
. 12
Feb
. 14
Feb
. 16
Feb
. 18
Feb
. 20
Feb
. 22
Feb
. 24
Feb
. 26
Feb
. 28
Mar
. 02
Mar
. 04
Mar
. 06
Mar
. 08
Mar
. 10
Mar
. 12
Mar
. 14
Mar
. 16
Mar
. 18
Mar
. 20
Mar
. 22
Mar
. 24
Mar
. 26
Mar
. 28
Mar
. 30
Sno
w D
ep
th (
Inch
es)
Boulder Rearing Station Ozone Season Snow Depth
2005 2006 2008 2011 2017 2019 Record
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OzoneContingency Plans
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71
7473
91
72
79
85
100
105
72
20
30
40
50
60
70
80
90
100
110
1201
/1/2
019
1/3
/20
19
1/5
/20
19
1/7
/20
19
1/9
/20
19
1/1
1/2
01
9
1/1
3/2
01
9
1/1
5/2
01
9
1/1
7/2
01
9
1/1
9/2
01
9
1/2
1/2
01
9
1/2
3/2
01
9
1/2
5/2
01
9
1/2
7/2
01
9
1/2
9/2
01
9
1/3
1/2
01
9
2/2
/20
19
2/4
/20
19
2/6
/20
19
2/8
/20
19
2/1
0/2
01
9
2/1
2/2
01
9
2/1
4/2
01
9
2/1
6/2
01
9
2/1
8/2
01
9
2/2
0/2
01
9
2/2
2/2
01
9
2/2
4/2
01
9
2/2
6/2
01
9
2/2
8/2
01
9
3/2
/20
19
3/4
/20
19
3/6
/20
19
3/8
/20
19
3/1
0/2
01
9
3/1
2/2
01
9
3/1
4/2
01
9
3/1
6/2
01
9
3/1
8/2
01
9
3/2
0/2
01
9
3/2
2/2
01
9
3/2
4/2
01
9
3/2
6/2
01
9
3/2
8/2
01
9
3/3
0/2
01
9
Ozo
ne
Co
nce
ntr
ati
on
(p
pb
)Daily Maximum 8-hr Ozone Averages
AQD's UGRB Monitoring Stations
Ozone Action Days Big Piney Boulder Daniel South Juel Spring Pinedale Gaseous 2015 Ozone NAAQS
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Daily Maximum 8-Hour Ozone Averages
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WDEQ Oilfield WasteDisposal Pond Study
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WDEQ 2017 Box Modeling Study
21NMOC = Non-Methane Organic Compounds
March 4, 2017
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Compliance
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Compliance
Company Internal Audits
275+ facilities for 110 tpy reduction in
NOx/VOCs
288 Site Assessments / Inspections completed (Oct. 1, 2018 – May 13, 2019)
83.9% Initial Compliance Rate
7 Sites with NOV issued
Total number of facilities in the UGRB: 3,934
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Identifying Sites for Compliance Inspection
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Pinedale Anticline
Jonah
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Ozone Designations
2008 Ozone NAAQS
(0.075 ppm / 75 ppb)
Marginal Nonattainment
Determination of Attainment
by July 20, 2015
2015 Ozone NAAQS
(0.070 ppm / 70 ppb)
Attainment / Unclassifiable
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Boulder Design Value
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Strategies Moving Forward
AQD Review and Evaluate 2019 Winter Ozone
Season Data
Refine Permitting, Monitoring, Forecasting
Enhance Inspection, Compliance, and Enforcement
actions
Potential opportunities for emission reductions:
DERA, VW, PAPO Board funding
Continue stakeholder dialogue
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