• Air Quality Monitoring Results • Diesel Equipment Inventory

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Air Quality Monitoring Results
Diesel Equipment Inventory
Construction Mitigation Plan
Schedule
Recess Alternatives
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
CO, PM 2.5, PM 10, Lead
• Interior and exterior monitoring began
12/2
• Results to date show compliance with all
NAAQS*
*National Ambient Air Quality Standards, developed to protect sensitive populations, e.g.,
children, elderly, asthmatics
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
Black Carbon
• Average levels significantly lower than
benchmarks developed by CA & US EPA
• Short term peaks correlated with
construction activity and wind direction
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
Reduction of PM when going from Tier 1 to Tier 2/3 of approximately 72%.
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
DESCRIPTION
Sumitomo Crane
Grove RT750
2013 Grove TR 880E Crane
2008 Grove 760E Crane
1996 Lorain LRT 230E Crane
2011 Cat 950H Loader
2005 Case 450 Skid Steer
2008 Volvo 460 Skid Steer
1996 Cat 800 KW Generator
2008 Multiquip 56 KW Generator
2008 Multiquip 56 KW Generator
2007 Multiquip 56 KW Generator
2006 Multiquip 56 KW Generator
2004 Komatsu PC-400 Exc
2006 Komatsu PC-78 Exc
2010 Komatsu PC-27 Exc
1999 Tadano TR 500 XL Crane
2004 IR 185 Compressor
2002 IR L-6 light Plant
2007 Wacker RT820 Compactor
TRANSIENT (average)
The Narragansett Bay
Commission
HOURS/
WEEK
120
S/B
100
5
S/B
100
50
S/B
100
100
S/B
S/B
S/B
40
S/B
15
20
24
S/B
10
20
CSO Program Phase II
WEEKS/
6MONS
26
26
8
8
8
8
8
8
8
8
8
8
8
4
4
16
12
4
26
TIER
0
1
4I
3
2
4I
2
3
2
3
3
3
3
2
3
3
2
2
2
3
DISTANCE TO
AQ MONITOR
‘80
100’
80' - 600'
80' - 600'
80' - 600'
80' - 600'
200'
200'
200'
200'
200'
200'
200'
80' - 120'
80' - 120'
80' - 120'
80' - 120'
80' - 120'
80' - 120'
80' - 120'
90’-600’
The Louis Berger
Group, Inc.
• Particulate filters not applicable
• Possible CO scrubber
• Replacement prohibited by cost, delay,
and availability of alternate crane
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Noise Reduction
• Installation of noise barrier curtain
(11/19/13) -2 db
• Installation of insulated attenuator on adit
fan (12/14/13) -12 db
• Reduce operating level of venting fan by
50% by April 2014
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Fugitive Dust Reduction
• Stabilize emissions with water or calcium
chloride
• Prohibit use of blower devices
• Expeditiously remove mud or dirt related
to construction activities along Promenade
Street
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Diesel Emissions Reduction
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Prepare equipment inventory (completed 1/10/14)
Identify feasibility of emission controls (ongoing)
Perform air quality monitoring (ongoing)
Require use of Ultra Low Sulfur Fuel for all transient
vehicles (FTL 1/9/14)
Prohibit staging of vehicles along Promenade (FTL
1/9/14)
Limit idle times to 5 minutes (FTL 1/9/14)
Signage regarding idling times at staging areas
Ensure diesel equipment is properly maintained
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Diesel Emissions Reduction
• Contractor will use pre-cast concrete segments vs castin-place concrete to line tunnel
• Fewer trucks and less total truck time on site
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Approximately
1515’ of 1800’
completed
(84% complete)
• Anticipated
completion of
blasting and
tunneling operations in March 2014
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Contractor will reduce traffic impacts in area by
scheduling Rathbone St. construction during
summer months
• Blasting complete by end of February
• Microtunneling completed by end of March
• Adit completed by end of June
• Crane should be off-site by end of summer
• Sheet-driving for approach channel to tunnel, 3-5
days
• Schedule TBD
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Indoor recess
• Transport to alternate recess location
(NBC to fund transportation)
• Erect contained outdoor structure on
site
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
• Monday, February 10, 2014 Meeting
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.
Jamie Samons
jsamons@narrabay.com
NBC Public Affairs
401.461.8848x377
Joe Pratt
jpratt@louisberger.com
Program Manager
401.415.9454
The Narragansett Bay
Commission
CSO Program Phase II
The Louis Berger
Group, Inc.