Addition of unit of measurement inserted and double
-
underlined, as
follows:
particular matter (DPM) generated during construction would be less than significant.
Although the nearest sensitive receptor is located further than the 1,000 -
foot distance
,
Raven conducted a Health Risk Assessment (HRA) to quantify construction -
related
emissions and associated health risks due to DPM exposure during construction. The results of this analysis are presented in
Appendix A
. Even though an HRA was not
required b
ased on adopted thresholds, the HRA demonstrates that health impacts are ERRATA SHEET #1
Raven SR Bioenergy Project
5 ESA
/
D202100382
ERRATA SHEET #1 to the Updated Initial Study MND
March 14, 2023
below significance thresholds, and the
p
roject would result in a less than significant
impact during construction.
Last sentence of f
irst
full
paragraph:
Table reference corr
ected
, as follows:
Emissions from the loader were calculated using CalEEMod and included in the operational emissions, shown in
Table 4.3
-
4 3
.
Reduced TAC emissions due to the
reduction in flaring of landfill gas at the existing
WCCSL
flare were also quanti
fied and
included in this analysis.
4 ,
Last sentence of f
irst
full
paragraph:
Last row
(
“
Exceeds Significance Threshold
”
)
corrected
, as follows:
T
ABLE
4.3 -
6 H
EALTH
R
ISK
I
MPACTS AT THE
M
AXIMUM
E
XPOSED
S
ENSITIVE
R
ECEPTORS
Risk Scenario / Receptor Type
Maximum
Cancer Risk
(per million)
Chronic
Hazard
Index
Acute
Hazard
Index
PM
2.5 concentration
(μg/m
3 )
Construction + Operations
Worker
3.0 0.058
0.22 0.57
Resident
0.70 0.0086
0.0039
0.024
School
0.49 0.011
0.036
0.030
Clinic
0.46 0.0058
0.032
0.016
Landfill Reductions
Worker
-
5.7 -
0.21 -
0.49 -
0.84 Resident
-
1.3 -
0.018
-
0.10 -
0.042
School
-
0.81 -
0.019
-
0.091
-
0.044
Clinic
-
0.79 -
0.011
-
0.077
-
0.026
Project Construction + Operations with Landfill Reductions
Worker
-
2.7 -
0.16 -
0.27 -
0.27 Resident
-
0.57 -
0.009
-
0.064
-
0.018
School
-
0.32 -
0.0084
-
0.055
-
0.014
Clinic
-
0.33 -
0.0056
-
0.045
-
0.010
BAAQMD Threshold of Significance
10.0 1.0
1.0 0.3
Exceeds Significance Threshold?
No
No
No
No
NOTES: Numbers may not appear to sum correctly due to
rounding.
SOURCE: Ramboll (Appendix A
to this document
)
ERRATA SHEET #1
Raven SR Bioenergy Project
6 ESA
/
D202100382
ERRATA SHEET #1 to the Updated Initial Study MND
March 14, 2023
Page
88 ,
Table 4.8
-
3 :
Table s
ource
supplemented,
as follows:
T
ABLE
4.8 -
3 U
NMITIGATED
A
NNUAL
O
PERATIONAL
G
REENHOUSE
G
AS
E
MISSIONS
Source
GHG (
MTCO
2 e
)
Process Operations
Biogas Engines
16,398
Flare
205
Fire Pump Engines
2.5 Auxiliary Operations
Area
<1
Energy
80.5 Mobile
262.6
1909.2
Off
-
road
303.2
Waste
96.7 Water
17. 0
Amortized Construction Emissions
6.2 Amortized Construction Emissions
Landfill Flare
Reductions
(blended gas)
8.63 -
9,019
Total
Project GHG
Emissions
(blended gas)
697.17
9,999
Landfill Flare Reductions (100% LFG)
-
16,398
Total Project GHG Emissions (100% LFG)
2,620
NOTES:
A 30
-
year lifetime was assumed for the
project
, which was used to
amortize construction
emissions.
Landfill flare reductions were estimated based on the landfill gas usage of the Project biogas engines, which can operate using a blended gas consisting of at least 55
percent
landfill gas and up to 100
percent
landfill ga
s
MTCO
2 e = metric tons of carbon dioxide equivalent
Operational emissions
are
revised
in this updated IS/MND
to align with
more detailed
project information from the Project Applicant
.
SOURCE:
Data compiled by Environmental Science Associates
and
Ramboll
.
(
See
Appendix
A to this
document
checklist
.
)
Page
110
,
Second paragraph
:
Text added, as follows:
Operation
The Raven SR system
would
run
up to
24 hours per day,
7 days per week,
although
an
average of
1.5 days per month are planned down times
.
The primary source of noise during
project operation would be mechanical equipment associated with the Steam/CO 2 Reformation system, including heating systems, HVAC equipment.
Also, feedstock would be
physically
deposited in the receiving area
via self
-
unl
oading transfer trucks or other suitable
vehicles.
The hydrogen compressors are industrial pieces that could generat e
noise up to as
much as 85 dBa at 1
.0
meter.
Additionally, trucks used to distribute fuels generated on the site would be maneuvering withi
n the parking lot of the proposed facility.
As detailed in
Section 2.5 (
Technology
)
,
t
he purified, high
-
pressure hydrogen is not proposed to be flared
but
vented if necessary, thereby avoiding
potential noise emissions
that could be created by the
high
-
pre
ssure release
.
_____________________________