DAQ-2025-002517

DEPARTMENT OF THE ARMY
TOOELE ARMY DEPOT/HEADQUARTERS
1 TOOELE ARMY DEPOT, BUILDING 1
TOOELE, UT 84074-5003
May 19, 2025
SUBJECT: Tooele Army Depot North Area (TEAD-N) Emission Status Report: 1
October 2024 to 30 March 2025 For a de minimis Exemption for Soil
Remediation Soil Vapor Extraction System Operations Former Landfill Source
Area SWMU-58; Tooele Army Depot, Utah NOI: N11594-0052
Mr. Bryce Bird
Utah Department of Environmental Quality
Division of Air Quality
195 North 1950 West
Salt Lake City, UT 84114-4820
Dear Mr. Bird:
This letter is to report soil vapor extraction (SVE) emissions at the Former Tooele Army
Depot (TEAD) Landfill Source Area (Figure 1) to the Utah Department of Environmental
Quality (UDEQ) Division of Air Quality (DAQ). DAQ has requested emission status
reports be submitted monthly for the first three months of operation, quarterly for the
remainder of the first year, and semi-annually for the remainder of SVE operations. This
is the nineteenth semi-annual report submitted for the Landfill Source Area.
A total of four SVE systems (SVE-006, SVE-009, SVE-012, and SVE-023) are installed
at the Landfill Source Area (Figure 2). Three of the SVE systems (SVE-006, SVE-009,
and SVE-012) began operation on 1 April 2013 and the fourth SVE system (SVE-023)
began operation on 14 April 2016. No contract was in place to operate the systems from
1 April 2020 through 11 May 2021. Two of the systems (SVE-006 and SVE-009) were
permanently shut down on 21 November 2022. SVE-012 and SVE-023 have operated
approximately eight months of each year since operations began with the exception
described above. Past operating periods were:
x 1 April 2013 to 8 August 2013
x 8 October 2013 to 9 December 2013
x 7 April 2014 to 26 November 2014
x 1 April 2015 to 19 November 2015
x 5 April 2016 to 30 November 2016
x 4 April 2017 to 27 November 2017
REVIEWED
Initials: DDR Date: 20/May/2025
Compliance Status: SVE Report
File#: 11594 (B1)
SUBJECT: Tooele Army Depot North Area (TEAD-N) Emission Status Report: 1
October 2024 to 30 March 2025 For a de minimis Exemption for Soil
Remediation Soil Vapor Extraction System Operations Former Landfill Source
Area SWMU-58; Tooele Army Depot, Utah NOI: N11594-0052

2

x 10 May 2018 to 26 November 2018
x 8 April 2019 to 25 November 2019
x 31 August 2021 to 22 November 2021
x 19 April 2022 to 21 November 2022 (SVE-012 was started on 12 May 2022)
x 10 April 2023 to 22 November 2023 (Only SVE-012 and SVE-023 in operation)
x 30 April 2024 to 20 November 2024 (Only SVE-012 and SVE-023 in operation)

During this reporting period, soil gas was extracted at a total combined average rate of
approximately 885 standard cubic feet per minute (scfm) or an average rate of
approximately 440 scfm by each SVE system. Each SVE system extracts vapors from
three Vapor Extraction Wells. The DAQ was previously notified that granular activated
carbon would no longer be used to treat emissions from the systems once de minimis
levels could confidently be met without treatment. Therefore, for the 2024 operational
period, the extracted soil gas by each of the two Former TEAD Landfill Source Area
SVE systems was discharged directly to the atmosphere via an unrestricted vent stack.

Extracted vapor samples from each SVE system are collected in 1-liter Summa
canisters on a monthly basis. The samples are shipped under chain of custody to
Eurofins (formerly Air Toxics) of Folsom, California for analysis of Volatile Organic
Compounds (VOCs) via United States Environmental Protection Agency (USEPA)
method TO-15.

During this reporting period, effluent samples were collected on 31 October and 19
November 2025. Emission rates for the current reporting period were calculated using
the analytical results, the average flow rates, and the actual operating time (Table 1 and
Table 2). Table 3 shows the total combined VOC emissions from the Landfill Source
Area SVE systems for the entire 2024 operational period is 350.8 lbs. As illustrated in
Table 3, the total emissions of VOCs did not exceed 5 tons during the 2024 operating
season, and the maximum mass emission rate for any one HAP did not exceed the
emission threshold value (ETV) applicable as listed in Utah Administrative Code
(U.A.C.) R307-410-5(1)(c)(i)(C). Laboratory reports are available upon request.

If you have any questions regarding this request, please contact Tyson Erickson at
[phone].

SUBJECT: Tooele Army Depot North Area (TEAD-N) Emission Status Report: 1
October 2024 to 30 March 2025 For a de minimis Exemption for Soil
Remediation Soil Vapor Extraction System Operations Former Landfill Source
Area SWMU-58; Tooele Army Depot, Utah NOI: N11594-0052

3

Sincerely,

Lonnie Brown
Environmental Division Chief

Enclosure

Figures
1 Figure 1 Location of TEAD-N Source Areas
2 Figure 2 Location of Soil Vapor Extraction Systems

Tables
1 SVE-012 Effluent Concentrations and Atmospheric Mass Loading
2 SVE-023 Effluent Concentrations and Atmospheric Mass Loading
3 Total Mass Loading for SVE-012 and SVE-023 Systems Combined in
2024

BROWN.LONNIE.D
ANIELS.140243232
9
Digitally signed by
BROWN.LONNIE.DANIELS.1402
432329Date: 2025.05.19 13:05:07 -06'00'
D
D
D
D
Building 679
Building 620
Building 615
C-Avenue Outfall
FIGURE 1LOCATION OF TEAD-N SOURCE AREAS EMISSIONS STATUS REPORT OCTOBER 2024 - MARCH 2025 TOOELE ARMY DEPOT-NORTH, UTAH
Figure1_DAQ_Source Areas 10/26/2018 5:09:34 PM
0 400 800Feet
1 inch equals 800 feet
TEAD BoundarySanitary Landfill Source Area
Legend
Sanitary Landfill
Too
e
l
e

A
r
m
y

Dep
o
t

B
o
u
n
d
a
r
y
VEW23
VEW12
VEW09
VEW06
VEW23D
VEW23M
VEW12D
VEW12M
VEW09DVEW09M
VEW06MVEW06D SVE-006
SVE-009
SVE-023
SVE-012
FIGURE 2SOIL VAPOR EXTRACTION SYSTEM LOCATIONS EMISSIONS STATUS REPORT OCTOBER 2024 - MARCH 2025 TOOELE ARMY DEPOT-NORTH, UTAH
Figure2_DAQ_SVE_Locations 10/26/2018 1:43:33 PM
0 75 150Feet1 inch equals 150 feet
Vapor Extraction WellTEAD Boundary
Legend
(ppbv) (ppmv)(µg/m3)
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 16 0.016 87 448 31 98% 0.0034 0.11 3.7
6/25/2024 SLDFEF2131 16 0.016 87 467 25 100% 0.0037 0.09 3.8
7/30/2024 SLDFEF2133 16 0.016 87 455 35 99% 0.0035 0.12 3.9
8/26/2024 SLDFEF2135 14 0.014 76 459 27 100% 0.0031 0.08 4
9/24/2024 SLDFEF2137 15 0.015 82 464 29 100% 0.0034 0.10 4.1
10/31/2024 SLDFEF2139 13 J 0.013 71 440 37 100% 0.0028 0.10 4.2
11/19/2024 SLDFEF2141 12 0.012 66 380 19 100% 0.0023 0.04 4.2
Mass Loading to Atmosphere in 2024 0.7
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 4.7 J 0.0047 26 448 31 98% 0.001 0.03 2.1
6/25/2024 SLDFEF2131 7.1 J 0.0071 39 467 25 100% 0.0016 0.04 2.2
7/30/2024 SLDFEF2133 7.5 J 0.0075 41 455 35 99% 0.0017 0.06 2.2
8/26/2024 SLDFEF2135 5.8 J 0.0058 32 459 27 100% 0.0013 0.04 2.3
9/24/2024 SLDFEF2137 6.5 J 0.0065 35 464 29 100% 0.0015 0.04 2.3
10/31/2024 SLDFEF2139 5.8 J 0.0058 32 440 37 100% 0.0013 0.05 2.4
11/19/2024 SLDFEF2141 6.3 J 0.0063 34 380 19 100% 0.0012 0.02 2.4
Mass Loading to Atmosphere in 2024 0.3
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 20 0.02 110 448 31 98% 0.0043 0.13 14
6/25/2024 SLDFEF2131 20 0.02 110 467 25 100% 0.0046 0.12 14
7/30/2024 SLDFEF2133 22 0.022 120 455 35 99% 0.0049 0.17 14
8/26/2024 SLDFEF2135 19 0.019 100 459 27 100% 0.0041 0.11 14
9/24/2024 SLDFEF2137 24 0.024 130 464 29 100% 0.0054 0.16 15
10/31/2024 SLDFEF2139 22 0.022 120 440 37 100% 0.0047 0.17 15
11/19/2024 SLDFEF2141 21 0.021 110 380 19 100% 0.0038 0.07 15
Mass Loading to Atmosphere in 2024 1.0
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 7.7 0.0077 42 448 31 98% 0.0017 0.05 0.74
6/25/2024 SLDFEF2131 2.7 0.0027 15 467 25 100% 0.00063 0.02 0.75
7/30/2024 SLDFEF2133 1.7 0.0017 9.3 455 35 99% 0.00038 0.01 0.77
8/26/2024 SLDFEF2135 - - - 459 27 100% - - 0.77
9/24/2024 SLDFEF2137 - - - 464 29 100% - - 0.77
10/31/2024 SLDFEF2139 2.1 J 0.0021 11 440 37 100% 0.00044 0.02 0.78
11/19/2024 SLDFEF2141 - - - 380 19 100% - - 0.78
Mass Loading to Atmosphere in 2024 0.10
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 13 0.013 71 448 31 98% 0.0028 0.09 1.2
6/25/2024 SLDFEF2131 14 0.014 76 467 25 100% 0.0032 0.08 1.3
7/30/2024 SLDFEF2133 17 0.017 93 455 35 99% 0.0038 0.13 1.4
8/26/2024 SLDFEF2135 13 0.013 71 459 27 100% 0.0029 0.08 1.5
9/24/2024 SLDFEF2137 17 0.017 93 464 29 100% 0.0039 0.11 1.6
10/31/2024 SLDFEF2139 15 0.015 82 440 37 100% 0.0032 0.12 1.7
11/19/2024 SLDFEF2141 15 0.015 82 380 19 100% 0.0028 0.05 1.8
Mass Loading to Atmosphere in 2024 0.7
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 14 0.014 76 448 31 98% 0.003 0.09 3.3
6/25/2024 SLDFEF2131 16 0.016 87 467 25 100% 0.0037 0.09 3.4
7/30/2024 SLDFEF2133 16 0.016 87 455 35 99% 0.0035 0.12 3.5
8/26/2024 SLDFEF2135 12 J 0.012 66 459 27 100% 0.0027 0.07 3.6
9/24/2024 SLDFEF2137 13 0.013 71 464 29 100% 0.003 0.09 3.7
10/31/2024 SLDFEF2139 14 0.014 76 440 37 100% 0.003 0.11 3.8
11/19/2024 SLDFEF2141 13 0.013 71 380 19 100% 0.0024 0.05 3.8
Mass Loading to Atmosphere in 2024 0.6
Chloroform
Benzene
Carbon Tetrachloride
1,1-Dichloroethane
1,1-Dichloroethene
Total Mass
Loading for
Period
(lbs)
Cumulative
Mass Loading1
(lbs)
1,1,1-Trichloroethane
Table 1
SVE-012 System - Effluent Concentrations and Atmospheric Mass Loading
Date Sample
ID
Concentration Average
Flow for
Period
(scfm)
Number of
Days in
Period
Uptime
Percentage for
Period
Mass Loading Rate
for Period
(lbs/day)
1 of 3
(ppbv) (ppmv)(µg/m3)
Total Mass
Loading for
Period
(lbs)
Cumulative
Mass Loading1
(lbs)
Table 1
SVE-012 System - Effluent Concentrations and Atmospheric Mass Loading
Date Sample
ID
Concentration Average
Flow for
Period
(scfm)
Number of
Days in
Period
Uptime
Percentage for
Period
Mass Loading Rate
for Period
(lbs/day)
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 2900 2.9 16000 448 31 98% 0.63 20.00 890
6/25/2024 SLDFEF2131 2600 2.6 14000 467 25 100% 0.59 15.00 900
7/30/2024 SLDFEF2133 2300 2.3 13000 455 35 99% 0.53 19.00 920
8/26/2024 SLDFEF2135 1900 1.9 10000 459 27 100% 0.41 11.00 930
9/24/2024 SLDFEF2137 1500 1.5 8200 464 29 100% 0.34 9.90 940
10/31/2024 SLDFEF2139 1600 1.6 8700 440 37 100% 0.34 13.00 950
11/19/2024 SLDFEF2141 1400 1.4 7600 380 19 100% 0.26 4.90 960
Mass Loading to Atmosphere in 2024 90
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 2.2 0.0022 12 448 31 98% 0.00047 0.02 0.02
6/25/2024 SLDFEF2131 - - - 467 25 100% - - 0.02
7/30/2024 SLDFEF2133 - - - 455 35 99% - - 0.02
8/26/2024 SLDFEF2135 - - - 459 27 100% - - 0.02
9/24/2024 SLDFEF2137 - - - 464 29 100% - - 0.02
10/31/2024 SLDFEF2139 - - - 440 37 100% - - 0.02
11/19/2024 SLDFEF2141 - - - 380 19 100% - - 0.02
Mass Loading to Atmosphere in 2024 0.02
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 12 0.012 66 448 31 98% 0.0026 0.08 0.20
6/25/2024 SLDFEF2131 - - - 467 25 100% - - 0.20
7/30/2024 SLDFEF2133 - - - 455 35 99% - - 0.20
8/26/2024 SLDFEF2135 - - - 459 27 100% - - 0.20
9/24/2024 SLDFEF2137 2.9 J 0.0029 16 464 29 100% 0.00067 0.02 0.22
10/31/2024 SLDFEF2139 - - - 440 37 100% - - 0.22
11/19/2024 SLDFEF2141 - - - 380 19 100% - - 0.22
Mass Loading to Atmosphere in 2024 0.1
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 3.0 0.003 16 448 31 98% 0.00063 0.02 0.05
6/25/2024 SLDFEF2131 - - - 467 25 100% - - 0.05
7/30/2024 SLDFEF2133 - - - 455 35 99% - - 0.05
8/26/2024 SLDFEF2135 - - - 459 27 100% - - 0.05
9/24/2024 SLDFEF2137 - - - 464 29 100% - - 0.05
10/31/2024 SLDFEF2139 - - - 440 37 100% - - 0.05
11/19/2024 SLDFEF2141 - - - 380 19 100% - - 0.05
Mass Loading to Atmosphere in 2024 0.02
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 200 0.2 1100 448 31 98% 0.043 1.30 23
6/25/2024 SLDFEF2131 220 0.22 1200 467 25 100% 0.05 1.30 24
7/30/2024 SLDFEF2133 200 0.2 1100 455 35 99% 0.045 1.60 25
8/26/2024 SLDFEF2135 180 0.18 980 459 27 100% 0.04 1.10 27
9/24/2024 SLDFEF2137 200 0.2 1100 464 29 100% 0.046 1.30 28
10/31/2024 SLDFEF2139 220 0.22 1200 440 37 100% 0.047 1.70 30
11/19/2024 SLDFEF2141 200 0.2 1100 380 19 100% 0.038 0.72 30
Mass Loading to Atmosphere in 2024 9
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 18 0.018 98 448 31 98% 0.0039 0.12 0.5
6/25/2024 SLDFEF2131 - - - 467 25 100% - - 0.5
7/30/2024 SLDFEF2133 - - - 455 35 99% - - 0.5
8/26/2024 SLDFEF2135 - - - 459 27 100% - - 0.5
9/24/2024 SLDFEF2137 4.6 J 0.0046 25 464 29 100% 0.001 0.03 0.5
10/31/2024 SLDFEF2139 - - - 440 37 100% - - 0.5
11/19/2024 SLDFEF2141 - - - 380 19 100% - - 0.5
Mass Loading to Atmosphere in 2024 0.2
Toluene
m,p-Xylene
o-Xylene
Tetrachloroethene (PCE)
cis-1,2-Dichloroethene
Ethyl Benzene
2 of 3
(ppbv) (ppmv)(µg/m3)
Total Mass
Loading for
Period
(lbs)
Cumulative
Mass Loading1
(lbs)
Table 1
SVE-012 System - Effluent Concentrations and Atmospheric Mass Loading
Date Sample
ID
Concentration Average
Flow for
Period
(scfm)
Number of
Days in
Period
Uptime
Percentage for
Period
Mass Loading Rate
for Period
(lbs/day)
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 5.6 0.0056 31 448 31 98% 0.0012 0.04 1.5
6/25/2024 SLDFEF2131 - - - 467 25 100% - - 1.5
7/30/2024 SLDFEF2133 - - - 455 35 99% - - 1.5
8/26/2024 SLDFEF2135 4.2 J 0.0042 23 459 27 100% 0.00095 0.03 1.6
9/24/2024 SLDFEF2137 3.1 J 0.0031 17 464 29 100% 0.00071 0.02 1.6
10/31/2024 SLDFEF2139 - - - 440 37 100% - - 1.6
11/19/2024 SLDFEF2141 4.7 J 0.0047 26 380 19 100% 0.00089 0.02 1.6
Mass Loading to Atmosphere in 2024 0.1
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDFEF2129 5300 5.3 29000 448 31 98% 1.1 34.00 600
6/25/2024 SLDFEF2131 5200 5.2 28000 467 25 100% 1.2 30.00 630
7/30/2024 SLDFEF2133 4600 4.6 25000 455 35 99% 1 35.00 670
8/26/2024 SLDFEF2135 3800 3.8 21000 459 27 100% 0.87 23.00 690
9/24/2024 SLDFEF2137 4400 4.4 24000 464 29 100% 1 29.00 720
10/31/2024 SLDFEF2139 4200 4.2 23000 440 37 100% 0.91 34.00 750
11/19/2024 SLDFEF2141 4000 4 22000 380 19 100% 0.75 14.00 770
Mass Loading to Atmosphere in 2024 200
303
NOTES:
1Since 2013/startup.
Only analytes detected at least once are displayed
"-" = analytes not detected above laboratory reporting limit for that specific date
acfm = actual cubic feet per minute
lbs = pounds
m3 = cubic meter
ppbv = part per billion by volume
ppmv = parts per million by volume
SVE = Soil Vapor Extraction
µg = micrograms
An analyte listed in italics is considered a Hazardous Air Pollutant (HAP).
Total Mass Loading to Atmosphere in 2024 (lbs)
trans 1,2-Dichloroethene
Trichloroethene (TCE)
3 of 3
(ppbv) (ppmv)(µg/m3)
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 33 0.033 180 423 31 100%0.0069 0.21 23
6/25/2024 SLDEF2132 33 0.033 180 436 25 100%0.0071 0.18 24
7/30/2024 SLDEF2134 33 0.033 180 494 35 90%0.0072 0.25 24
8/26/2024 SLDEF2136 36 0.036 200 514 27 30%0.0026 0.07 24
9/24/2024 SLDEF2138 31 0.031 170 439 29 100%0.0072 0.21 24
10/31/2024 SLDEF2140 26 0.026 140 397 37 100%0.0056 0.21 24
11/19/2024 SLDEF2142 29 0.029 160 378 19 100% 0.0051 0.097 24
Mass Loading to Atmosphere in 2024 1.0
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 32 0.032 170 423 31 100%0.0066 0.2 5.7
6/25/2024 SLDEF2132 35 0.035 190 436 25 100%0.0072 0.18 5.9
7/30/2024 SLDEF2134 35 0.035 190 494 35 90%0.0076 0.27 6.1
8/26/2024 SLDEF2136 41 0.041 220 514 27 30%0.0029 0.078 6.2
9/24/2024 SLDEF2138 37 0.037 200 439 29 100%0.0084 0.24 6.4
10/31/2024 SLDEF2140 32 0.032 170 397 37 100%0.0067 0.25 6.7
11/19/2024 SLDEF2142 32 0.032 170 378 19 100% 0.0059 0.11 6.8
Mass Loading to Atmosphere in 2024 1.3
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 59 0.059 320 423 31 100%0.012 0.37 39
6/25/2024 SLDEF2132 63 0.063 340 436 25 100%0.013 0.33 39
7/30/2024 SLDEF2134 65 0.065 350 494 35 90%0.014 0.49 40
8/26/2024 SLDEF2136 68 0.068 370 514 27 30%0.005 0.14 40
9/24/2024 SLDEF2138 67 0.067 370 439 29 100%0.015 0.44 40
10/31/2024 SLDEF2140 56 0.056 310 397 37 100%0.012 0.44 41
11/19/2024 SLDEF2142 54 0.054 290 378 19 100% 0.01 0.19 41
Mass Loading to Atmosphere in 2024 2.0
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 5.3 J 0.0053 29 423 31 100%0.0011 0.034 0.7
6/25/2024 SLDEF2132 5.9 J 0.0059 32 436 25 100%0.0012 0.03 0.7
7/30/2024 SLDEF2134 5.5 J 0.0055 30 494 35 90%0.0012 0.042 0.8
8/26/2024 SLDEF2136 4.4 J 0.0044 24 514 27 30%0.00037 0.01 0.8
9/24/2024 SLDEF2138 6.0 J 0.006 33 439 29 100%0.0011 0.032 0.8
10/31/2024 SLDEF2140 4.4 J 0.0044 24 397 37 100%0.001 0.037 0.8
11/19/2024 SLDEF2142 5.5 J 0.0055 30 378 19 100%0.00092 0.017 0.9
Mass Loading to Atmosphere in 2024 0.2
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 2.4 J 0.0024 13 423 31 100%0.0005 0.016 0.2
6/25/2024 SLDEF2132 2.4 J 0.0024 13 436 25 100%0.00051 0.013 0.2
7/30/2024 SLDEF2134 2.1 J 0.0021 11 494 35 90%0.00049 0.017 0.2
8/26/2024 SLDEF2136 2.8 J 0.0028 15 514 27 30%0.00019 0.0051 0.2
9/24/2024 SLDEF2138 3.1 J 0.0031 17 439 29 100%0.00064 0.019 0.2
10/31/2024 SLDEF2140 3.0 J 0.003 16 397 37 100%0.00059 0.022 0.2
11/19/2024 SLDEF2142 3.0 J 0.003 16 378 19 100% 0.00056 0.011 0.2
Mass Loading to Atmosphere in 2024 0.1
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 60 0.06 330 423 31 100%0.012 0.37 15
6/25/2024 SLDEF2132 65 0.065 350 436 25 100%0.013 0.33 15
7/30/2024 SLDEF2134 62 0.062 340 494 35 90%0.014 0.49 16
8/26/2024 SLDEF2136 78 0.078 430 514 27 30%0.0053 0.14 16
9/24/2024 SLDEF2138 57 0.057 310 439 29 100%0.015 0.44 16
10/31/2024 SLDEF2140 60 0.06 330 397 37 100%0.011 0.41 17
11/19/2024 SLDEF2142 59 0.059 320 378 19 100% 0.011 0.21 17
Mass Loading to Atmosphere in 2024 2.0
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 10 J 0.01 55 423 31 100%0.0021 0.065 0.2
6/25/2024 SLDEF2132 - - - 436 25 100%- - 0.2
7/30/2024 SLDEF2134 - - - 494 35 90%- - 0.2
8/26/2024 SLDEF2136 - - - 514 27 30%- - 0.2
9/24/2024 SLDEF2138 - - - 439 29 100%- - 0.2
10/31/2024 SLDEF2140 - - - 397 37 100%- - 0.2
11/19/2024 SLDEF2142 - - - 378 19 100% - - 0.2
Mass Loading to Atmosphere in 2024 0.1
cis-1,2-Dichloroethene
m,p-Xylene
Chloroform
Carbon Tetrachloride
1,1-Dichloroethene
1,1-Dichloroethane
Mass Loading Rate
for Period
(lbs/day)
Total Mass
Loading for
Period
(lbs)
Cumulative Mass
Loading1
(lbs)
1,1,1-Trichloroethane
Table 2
SVE-023 System - Effluent Concentrations and Atmospheric Mass Loading
Date Sample
ID
Concentration Average Flow
for Period
(scfm)
Number of
Days in
Period
Uptime Percentage
for Period
1 of 2
(ppbv) (ppmv)(µg/m3)
Mass Loading Rate
for Period
(lbs/day)
Total Mass
Loading for
Period
(lbs)
Cumulative Mass
Loading1
(lbs)
Table 2
SVE-023 System - Effluent Concentrations and Atmospheric Mass Loading
Date Sample
ID
Concentration Average Flow
for Period
(scfm)
Number of
Days in
Period
Uptime Percentage
for Period
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 3.2 J 0.0032 17 423 31 100%0.00066 0.02 0.03
6/25/2024 SLDEF2132 - - - 436 25 100%- - 0.03
7/30/2024 SLDEF2134 - - - 494 35 90%- - 0.03
8/26/2024 SLDEF2136 - - - 514 27 30%- - 0.03
9/24/2024 SLDEF2138 - - - 439 29 100%- - 0.03
10/31/2024 SLDEF2140 - - - 397 37 100%- - 0.03
11/19/2024 SLDEF2142 - - - 378 19 100% - - 0.03
Mass Loading to Atmosphere in 2024 0.02
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 22 0.022 120 423 31 100%0.0046 0.14 3.3
6/25/2024 SLDEF2132 23 0.023 130 436 25 100%0.0048 0.12 3.5
7/30/2024 SLDEF2134 20 0.02 110 494 35 90%0.0047 0.16 3.6
8/26/2024 SLDEF2136 27 0.027 150 514 27 30%0.0018 0.049 3.7
9/24/2024 SLDEF2138 20 0.02 110 439 29 100%0.0051 0.15 3.8
10/31/2024 SLDEF2140 21 0.021 110 397 37 100%0.004 0.15 4.0
11/19/2024 SLDEF2142 22 0.022 120 378 19 100% 0.004 0.076 4.0
Mass Loading to Atmosphere in 2024 0.8
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 16 0.016 87 423 31 100%0.0033 0.1 0.2
6/25/2024 SLDEF2132 - - - 436 25 100%- - 0.2
7/30/2024 SLDEF2134 - - - 494 35 90%- - 0.2
8/26/2024 SLDEF2136 - - - 514 27 30%- - 0.2
9/24/2024 SLDEF2138 - - - 439 29 100%- - 0.2
10/31/2024 SLDEF2140 - - - 397 37 100%- - 0.2
11/19/2024 SLDEF2142 - - - 378 19 100% - - 0.2
Mass Loading to Atmosphere in 2024 0.1
4/30/2024 - - - - Startup Startup Startup Startup Startup Startup
5/31/2024 SLDEF2130 1100 1.1 6000 423 31 100%0.23 7.1 180
6/25/2024 SLDEF2132 1200 1.2 6600 436 25 100%0.25 6.3 190
7/30/2024 SLDEF2134 1100 1.1 6000 494 35 90%0.25 8.8 200
8/26/2024 SLDEF2136 1200 1.2 6600 514 27 30%0.087 2.3 200
9/24/2024 SLDEF2138 1100 1.1 6000 439 29 100%0.25 7.3 210
10/31/2024 SLDEF2140 1000 1 5500 397 37 100%0.2 7.4 210
11/19/2024 SLDEF2142 1000 1 5500 378 19 100% 0.19 3.6 220
Mass Loading to Atmosphere in 2024 40
48.9
Notes:
1Since 2013/startup.
Only analytes detected at least once are displayed
"-" = analytes not detected above laboratory reporting limit for that specific date
acfm = actual cubic feet per minute
DL = detection limit.
J = Analytical data is estimated between the laboratory DL and LOQ.
lbs = pounds.
LOQ = limit of quantification.
OY = Operating Year
m3 = cubic meter
ppbv = part per billion by volume
ppmv = parts per million by volume
SVE = Soil Vapor Extraction
µg = micrograms
Trichloroethene (TCE)
Total Mass Loading to Atmosphere in 2024 (lbs)
Toluene
o-Xylene
Tetrachloroethene (PCE)
2 of 2
Analyte Total Mass Loading
(lbs)
1,1,1-Trichloroethane 1.7
1,1-Dichloroethane 1.6
1,1-Dichloroethene 3.0
1,2-Dichloroethane 0.0
1,2-Dichloropropane 0.0
Benzene 0.1
Carbon Tetrachloride 1.0
Chloroform 0.8
cis-1,2-Dichloroethene 92
Methylene Chloride 0.0
Ethyl Benzene 0.1
m,p-xylene 0.2
o-Xylene 0.1
tetrachloroethane (PCE) 9.8
Toluene 0.3
trans-1,2-Dichloroethene 0.1
Trichloroethene (TCE) 240
Notes:
Only analytes detected at least once are displayed.
An analyte listed in italics is considered a HAP.
HAP = hazardous air pollutant.
lbs = pounds.
VOC = volatile organic comopund.
Total VOC Mass Loading for SVE-012 and SVE-023 Systems in 2024 (lbs) (not to exceed 5 tons): 350.8
Table 3
Total Mass Loading for SVE-012 and SVE-023 Systems Combined in 2024
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