WI0800219_Permit (Completion)_20241002 (4)

Final TECHNICAL MEMORANDUM C 24n-
Solid Waste Management Unit 350
Downgradient Former AST Plume Biosparging Treatability Study
Marine Corps Base Camp Lejeune, North Carolina
PREPARED FOR: Bryan Beck/NAVFAC Mid-Atlantic
Charity Delaney/MCB Camp Lejeune
Beth Hartzell/North Carolina Department of Environmental Quality \\\\CARO y�ya
Thomas Richard/MCB Camp Lejeune `��.``�,.•••••.�/ ds�
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PREPARED BY: CH21VI HILL, Inc. (CH2M) 0•p�?�'"�D ,r• • s
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Charlotte, NC
NC Engineering License#F-0699 gr�,iN�
DATE: March 2017
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CONTRACT: Comprehensive Long-term Environmental Action—Navy (CLEAN)
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Contract N62470-11-8012 Contract Task Order (CTO) WE2A
Introduction
This Technical Memorandum presents a summary of the second phase of the Naphthalene Biosparging
Treatability Study, referred to as the Treatability Study, conducted between June 2015 and June 2016 at Resource
Conservation and Recovery Act (RCRA) Solid Waste Management Unit (SWMU) 350, Marine Corps Base (MCB)
Camp Lejeune, North Carolina (Figure 1).
Overview
SWMU 350 is a former aboveground storage tank (AST) facility, which consisted of Tanks STT-61 through STT-66,
and is located approximately 400 feet east of Iwo Jima Boulevard, a former entrance to the Tarawa Terrace
housing development of MCB Camp Lejeune, and 100 feet south of North Carolina State Highway 24 (Figure 1).
The site previously accommodated six 30,000-ga lion-capacity ASTs that were used to store liquid propane from
1942 to 1984 and waste oil from 1984 to 1993.The ASTs were removed in 1993 and the associated subsurface
fuel lines were removed in 2005. While elevated concentrations of various volatile organic compounds (VOCs) and
semivolatile organic compounds have been detected in groundwater in the vicinity of the former ASTs and fuel
lines since site investigations began in 1991, more recent data have shown a well-defined naphthalene plume in
the 30-foot zone of the surficial aquifer referred to as the former AST plume.
Following completion of a RCRA Facility Investigation (RFI), biosparging was identified as a remedial alternative for
consideration in the removal of naphthalene from the former AST plume. Since site-specific data would improve
evaluating the effectiveness of biosparging in the Corrective Measures Study (CMS), this Treatability Study was
proposed and implemented in a phased approach within the former AST plume area (Figure 2). In 2013, the first
phase of the biosparging treatability study was conducted in the surficial aquifer zone in the former AST plume
source area and included installation of six biosparging wells, five new groundwater monitoring wells, one soil
vapor extraction (SVE) well, and five soil gas sampling points. Based on the success of the first phase (CH2M,
2015), a second phase was conducted in the deeper, downgradient southern portion of the plume.
Objectives
The objectives of the Downgradient Former AST Plume Treatability Study were as follows:
• Evaluate the feasibility and effectiveness of biosparging in a deeper and more diffuse naphthalene
groundwater plume with observed lithological heterogeneity (deeper silty sand and clay lenses) located in the
southern portion of SWMU 350.
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SOLID WASTE MANAGEMENT UNIT 350 DOWNGRADIENT FORMER AST PLUME BIOSPARGING TREATABILITY STUDY
MARINE CORPS BASE CAMP LEJEUNE,NORTH CAROLINA
• Evaluate whether biosparging with increased well spacing (from 30 to 80 feet) and deeper biosparging
screened intervals (from 40 to 45 feet) will result in treatment of the naphthalene groundwater plume.
• Assess VOC concentrations in soil gas to evaluate the vapor intrusion pathway near Building TT84 during
biosparging activities.
Treatability Study Implementation
In accordance with the Naphthalene Biosparging Treatability Study Work Plan Addendum, SWMU 350(referred to
as the Work Plan) (CH2M, 2015),the Treatability Study and associated field activities were conducted between
June 2015 and June 2016. A chronology of the primary activities conducted for the Treatability Study is presented
in Table 1 and details are provided in the following subsections.
TABLE 1
Treatability Study Chronology
Date Event
Notice of Intent
May 6,2015 Submittal of Notification of Intent to Construct or Operate Injection Wells to the North
Carolina Department of Environment and Quality(NCDEQ)
June 2,2015 Utility locating
June 9-June 18,2015 Construction and Startup
June 9-12,2015 Biosparge wells and soil gas probes installation
June 12-14, 2015 Biosparging System installation
June 15-18, 2015 Biosparging System Startup
Performance Monitoring
July 15,2015 1-Month sampling
August 21,2015 Biosparging system turned off
August 25, 2015 2-Month sampling
November 2 to 6,2015 5-Month sampling
May 31 to June 3,2016 12-Month sampling
North Carolina Department of Environmental Quality Notification of Intent to
Construct
On May 7, 2015, MCB Camp Lejeune submitted a Notification of Intent to Construct or Operate Injection Wells to
NCDEQ(formerly known as North Carolina Department of Environment and Natural Resources) in accordance
with 15A North Carolina Administrative Code 02C.0217, Permitting by Rule. The Notification detailed the need for
installation and operation of air injection wells at SWMU 350 for the purpose of evaluating enhanced in situ
biodegradation of naphthalene in groundwater in the surficial aquifer.
Utility Locating
Utility locating,that consisted of marking subsurface utilities and obstructions within 20 feet in each direction of
any proposed subsurface work to be conducted during installation, was completed on June 2, 2015.This included
the area near the proposed biosparging wells and soil gas monitoring points, and along the proposed air
conveyance line (Figure 2).A third-party professional utility locating subcontractor identified subsurface
structures that could be affected by drilling or trenching activities. In addition, the North Carolina One Call Center
was called to mark out utilities.
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Construction and Startup
Biosparging Well Installation
The expanded biosparging system for the Treatability Study included four biosparging wells within the former AST
plume in the southern portion of SWMU 350, and one biosparging well within the former AST plume in the
northern portion of SWMU 350 (Figure 2).The biosparging wells in the southern portion were installed 80 feet
apart (over twice the distance between biosparging wells for the 2013 Naphthalene Biosparging Treatability Study
[CH2M, 2013]). Since biosparging creates a cone of air that emanates from the biosparging well screen and fans
out laterally as the air travels upwards to the ground surface, the biosparging wells were installed at 45 feet below
ground surface (bgs).This depth was selected to evaluate if deeper biosparge wells would provide a larger lateral
zone of influence to compensate for the increased distance between biosparging wells. Biosparging well locations
and depths were selected to target the area encompassing the more diffuse downgradient portion of the former
AST plume (Figure 2).
The five biosparging wells were installed to 45 feet bgs using roto-sonic drilling methods.The biosparging wells
were constructed of 2-inch inner diameter Schedule 40 polyvinyl chloride (PVC) casing and a 2-foot section 0.006-
inch machine slotted Schedule 40 PVC screen,with a bottom cap. The relatively small slot size was intended to
promote more uniform distribution of air across the biosparging well screen.The screen was connected to new,
threaded,flush-jointed PVC casing. A 30/70 silica sand filter pack was added to 6 inches above the screen,then a
2-feet thick bentonite seal was placed, and then the boring was grouted to the surface.Table 2 summarizes well
construction details. Well construction diagrams of the five installed biosparging wells are provided in
Attachment 1.
The biosparging wells were completed slightly below grade and connected to the conveyance piping from the
equipment compound.
Soil Gas Monitoring Point Installation
Four permanent soil gas monitoring points (SWMU350-SG06 through SWMU350-SG09) were installed using
direct-push technology(Figure 2).The basic implant system consisted of a probe rod, an anchor point, and an
implant screen with various connections to attach to the anchor point and the sample Teflon tubing. Prior to
setting the 6-inch long screens,the depth to water in the area at the time of sampling was gauged in nearby wells
to ensure that the bottoms of the soil gas monitoring points were placed between 1 and 2 feet above the water
table. Since the depth to water in the Treatability Study area is typically between 8 and 10 feet bgs,the soil gas
monitoring point screened intervals were installed approximately 5.5 to 6 feet bgs.The tops of the screens were
placed at least 5 feet bgs, in accordance with the United States Environmental Protection Agency's (USEPA's)
vapor intrusion guidance (2015).
The implant was installed after the borehole was advanced to the desired depth by placing the anchor point and
tubing into the boring.A Swagelock plug was affixed to the end of the tubing above ground so that soil gas does not
escape from the implant into ambient air or vice versa.The soil gas monitoring points were completed slightly below
ground surface with a 6-inch steel, manhole type protective cover.A filter pack of glass beads was added to 6 inches
above the screen and then the boring was grouted to the surface with a bentonite mixture.
The implant was allowed to equilibrate for 24 hours after installation before collecting a soil gas sample. A helium
leak check was performed at each new soil gas monitoring point to make sure that the probes were installed
correctly, and all checks passed.Table 2 summarizes soil gas monitoring point construction details.
Biosparging System Installation
The existing rotary screw air compressor used during the 2013 Naphthalene Biosparging Treatability Study(CH2M,
2013) (50 horsepower, 460 volt/3 phase/60 hertz), capable of producing 75 standard cubic feet per minute (scfm)
at 110 pounds per square inch (psi), was used to supply compressed air to the biosparging wells.The in-line
pressure regulator was set to approximately 50 psi, with a maximum of 60 psi. A total of approximately 500 feet
of conveyance piping (1-inch-diameter air hose)was extended from the air compressor enclosure to each well
within the treatment area (Figure 2). Conveyance lines were directly buried, with the exception of the conveyance
lines that run through an above ground conduit across the Piedmont Natural Gas pipeline right-of-way.
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SOLID WASTE MANAGEMENT UNIT 350 DOWNGRADIENT FORMER AST PLUME BIOSPARGING TREATABILITY STUDY
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Biosparging wells were constructed so that flow rates could be adjusted independently. Pressure gauges,flow
meters, and ball valves were installed above ground.Air compressor supporting equipment, including valves,
hoses, pressure regulators,flow meters, and fittings, is referenced in the Piping and Instrumentation Diagram
(Figure 3).
Biosparging System Startup
The system was started on June 15, 2015, and the start-up process of gradually increasing the air flow to the
target flow rate continued through June 18, 2015. During the startup period, dissolved oxygen (DO) and
groundwater level monitoring was performed as explained below.
Initially, air was injected into each vertical biosparging well at rates of approximately 3 to 5 scfm for 24 hours.The
purpose of this initial period of low-flow injection is to monitor aquifer response, particularly with regard to water
table displacement, which is related to capillary resistance of the formation. Groundwater elevations were
checked in three groundwater monitoring wells (SWMU350-MW16, SWMU350-MW47-18, and SWMU350-MW47-
30) using an In Situ Troll 9500 for the first 2 to 3 days to assess whether water level stabilization has occurred.
After the initial 24 hours of operation at 3 to 5 scfm,flow rates were gradually increased, up to a maximum of
15 scfm.
Operations and Maintenance
System parameters including regulator pressure, air compressor flow rate,total system flow rate and pressure,
and individual biosparging well flow rates and pressures were recorded weekly to monitor the operation of the
biosparging system and are included in Attachment 2.
Performance Monitoring
Eight existing monitoring wells (Table 2)were used for performance monitoring during the Treatability Study.
Groundwater sampling and gauging was conducted during a baseline event (November 2013), prior to the startup
of the biosparging system,followed by four post-startup sampling events (1, 2, 5, and 12 months after startup).
The system was turned off on August 21, 2015, before the 2-month sampling event was conducted.The 5-month
and 12-month events were conducted 3 and 10 months, respectively, after the system had been shut down to
evaluate for potential rebound.The water quality parameters measured during the monitoring events except the
12- month sampling event which was conducted using passive diffusion bags (PDBs) are summarized in Table 3.
The groundwater elevations measured during these monitoring events are summarized in Table 4. Soil gas
samples were collected during the baseline, 1-month, and 2-month post-startup events.
Groundwater Sampling
Four rounds of groundwater sampling were conducted to assess performance, after 1 month of operation, after
2 months of operation, and after 5 and 12 months when the system had been shut down for 3 and 10 months.
The November 2013 groundwater monitoring results were used as a baseline.
To conduct the groundwater sampling, the monitoring wells listed in Table 2 were opened and allowed to
equilibrate before being gauged. Once wells adequately equilibrated, the monitoring wells were gauged for depth
to groundwater and depth to bottom.
Following gauging,the monitoring wells were sampled. Groundwater quality parameters, listed below,were
collected in the field during sampling and samples were sent to an analytical laboratory to be analyzed for
naphthalene by USEPA Method 826013.
Field-analyzed natural attenuation indication parameters and groundwater quality parameters (Table 3):
• Temperature
• Specific conductivity
• DO
• pH
• Oxidation-reduction potential (ORP)
• Turbidity
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SOLID WASTE MANAGEMENT UNIT 350 DOWNGRADIENT FORMER AST PLUME BIOSPARGING TREATABILITY STUDY
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Groundwater Sampling Results
The groundwater data from post-startup samples were compared to baseline conditions to evaluate performance
of the Treatability Study. During the baseline sampling event, naphthalene was detected above the North Carolina
Groundwater Quality Standards (NCGWQS) in groundwater samples collected from SWMU350-MW06,
SWMU350-MW16, and SWMU350-MW47-30 (Table 5) and plume maps are shown on Figure 5. Naphthalene was
not detected at concentrations exceeding NCGWQS in groundwater samples collected after 1-month operation of
biosparging. Naphthalene concentration trends are included on Figure 4.
During the 1-month and 2-month monitoring events, naphthalene was only detected in samples collected from
monitoring well SWMU350-MW47-30, screened in the 30-foot zone, at estimated concentrations of 2.4 J
micrograms per liter(µg/L) and 2.6 J µg/L respectively.These concentrations are below the NCGWQS of 6 µg/L for
naphthalene. Naphthalene was not detected above method detection limits in samples collected from the 15-foot
zone aquifer wells.
To evaluate for potential naphthalene rebound groundwater samples were collected during the 5-month and 12-
month monitoring period after system startup (3-months and 10 months after the system shut down).
Naphthalene concentrations in the groundwater samples collected in the treatment area were not detected
above the method detection limits.
Zone of Influence Monitoring
Water levels and field parameters, including DO, ORP, and pH, were monitored continuously with In Situ Troll
9500 water quality instruments with data logging capability during the startup of the biosparging system to
evaluate the zone of influence. On June 15, 2015,the data loggers were deployed in wells SWMU350-MW16,
SWMU350-MW47-18, and SWMU350-MW47-30 prior to the startup of the biosparging system to establish
baseline conditions. Data logging was discontinued on June 17, 2015,following approximately 2 days of data
collection.The DO and water table displacement data are shown in Attachment 3. Due to the introduction of air
bubbles directly into the well casing of SWMU350-MW16, water pressure measurements were distorted and do
not represent actual feet of water level change.The initial continuous DO measurements along with periodic
water quality parameter data collected during performance monitoring were used to assess the zone of influence
for biosparging which overall indicated that oxygen was successfully introduced to the target area. Specific
observations of zone of influence include:
• DO levels were observed to increase within 3 hours of system startup (Attachment 3) in SWMU350-MW16
located approximately 20 feet from SWMU350-IW59-45 (Figure 4).
• DO levels were observed to increase within 7 hours of system startup in SWMU350-MW47-18 and within 24
hours of system startup in SWMU350-MW47-30 (Attachment 3) which are located approximately 40 feet
from SWMU350-IW61-45 (Figure 4).
• In the 15-foot surficial aquifer zone groundwater, the highest detected DO concentration during performance
monitoring was 6.94 milligrams per liter(mg/L) in SWMU350-MW49-18 (roughly 100 feet side gradient from
SWMU350-IW59-45).
• In the 30-foot zone,the highest detected DO concentration during performance monitoring was 10.30 mg/L in
SWMU350-MW06 (roughly 20 feet from SWMU350-IW63-45).
Site-wide data collected during the 5-month post-startup monitoring event (3 months after system had been
turned off) showed elevated DO concentrations persisted for all of the wells monitored during this study except
SWMU350-MW47-18, SWMU350-MW48-18, and SWMU350-MW48-30 when compared against the 2011 RCRA
Facility Investigation data (CH2M, 2012). These lines of evidence suggest a zone of influence of up to 100 feet can
be assumed for estimates in the Corrective Measures Study evaluation.
Soil Gas Sampling
Soil gas samples were collected from three of the four soil gas monitoring points prior to startup and from two of
the four soil gas monitoring points at the 1-and 2-month post-startup monitoring events (Figure 2,Table 2).The
samples were analyzed for benzene and naphthalene by USEPA Method TO-15. Samples were unable to be
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SOLID WASTE MANAGEMENT UNIT 350 DOWNGRADIENT FORMER AST PLUME BIOSPARGING TREATABILITY STUDY
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collected from SWMU350-SG08 during all three of the events, along with SWMU350-SG09 during the 1-month
and 2-month event due to water being present in the soil gas monitoring point tubing, indicating the water table
had risen above the probe depth.
Soil Gas Sampling Results
Naphthalene was not detected in soil gas samples above the method reporting limit and benzene was not
detected above the North Carolina Division of Waste Management Residential Vapor Intrusion Screening Level for
Sub Slab and Exterior Soil Gas (October 2016). No exceedances were detected in soil gas during the baseline, 1-
month, or 2-month post-startup event. A summary of the naphthalene soil gas sampling results is shown in Table
6.
Conclusions
Based on an analysis of data collected during the Treatability Study, a summary of the objectives and corresponding
conclusions are included below in Table 7.
TABLE 7
Objectives and Conclusions Summary Table
Objectives Conclusions
Evaluate the feasibility and effectiveness of biosparging in a Biosparging is feasible and effective since naphthalene
deeper and more diffuse naphthalene groundwater plume concentrations in groundwater samples collected from
with observed lithological heterogeneity(deeper silty sand performance monitoring wells were observed to decrease
and clay lenses) located in the southern portion of SWMU to below NCGWQS from the baseline event to the 2-month
350. post-startup event.After shutting down the system for 3
months, naphthalene concentrations were below method
reporting limits and no rebound was observed throughout
the study.
Evaluate whether biosparging with increased well spacing Both increased well spacing(up to 80 feet)and deeper
(from 30 to 80 feet)and deeper biosparging screened biosparging screened intervals were shown to be effective
intervals(from 40 to 45 feet)will result in treatment of the at treating naphthalene within the target treatment area.
naphthalene groundwater plume.
Assess VOC concentrations in soil gas to evaluate the vapor Naphthalene was not detected in soil gas samples
intrusion pathway near Building TT84 during biosparging collected near Building TT84 and therefore the vapor
activities. intrusion pathway was determined to be incomplete.
Recommendations
Based on the analytical results and conclusions discussed above the following is recommended:
• Conduct two more groundwater sampling events representative of the seasonal changes to confirm the
concentration levels remain below the NCGWQS.
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MARINE CORPS BASE CAMP LEJEUNE,NORTH CAROLINA
References
CH2M HILL, Inc. (CH2M). 2012. RCRA Facility Investigation Report, SWMU 350. Marine Corps Base Camp Lejeune,
Jacksonville, North Carolina. May.
CH2M. 2013. Naphthalene Biosparging Treatability Study Work Plan. Marine Corps Installations East—Marine
Corps Base Camp Lejeune,Jacksonville, North Carolina. April.
CH2M. 2015. Naphthalene Biosparging Treatability Study Solid Waste Management Unit 350. Marine Corps
Installations East—Marine Corps Base Camp Lejeune, North Carolina. May.
CH2M. 2015. Naphthalene Biosparging Treatability Study Work Plan Addendum. Marine Corps Installations East—
Marine Corps Base Camp Lejeune,Jacksonville, North Carolina. May.
United States Environmental Protection Agency (USEPA). 2015. OSWER Guidance for Assessing and Mitigating the
Vapor Intrusion Pathway from Subsurface Vapor Sources to Indoor Air.June.
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Tables

TABLE 2
Well Construction and Performance Monitoring Summary
SWMU 350 Naphthalene Biosparging Treatability Study
MCB CAMP LEJEUNE
North Carolina 1-Month,2-Month,5-Months and 12 Months Post Start-up Events
Construction Summary Groundwater Soil Gas
Surficial Screen Screen
Treatability Total Depth Naphthalene Alkalinity/Ferrous Iron Benzene/Naphthalene
Study Well ID Aquifer (ft bgs) Length Interval
Zones (ft) (ft bgs) (USEPA TO-15)
(82606) (HACH Field Kits) `
New SWMU350-IW59-45 30-foot 45 2 43-45
Biosparging SWMU350-IW60-45 30-foot 45 2 43-45
Wells SWMU350-IW61-45 30-foot 45 2 43-45
SWMU350-IW62-45 30-foot 45 2 43-45 -- --
SWMU350-IW63-45 30-foot 45 2 43-45 - --
Existing SWMU350-MW06 15-foot 18 10 8-18 X X
Groundwater SWMU350-MW16 30-foot 30 10 20-30 X X
Monitoring SWMU350-MW47-18 15-foot 18 10 8-18 X X
Wells SWMU350-MW47-30 30-foot 30 10 20-30 X X
SWMU350-MW48-18 15-foot 18 10 8-18 X X
SWMU350-MW48-30 30-foot 30 5 25-30 X X
SWMU350-MW49-18 15-foot 18 10 8-18 X X
SWMU350-MW49-30 30-foot 30 5 25-30 X X
Baseline,1-Month Post Start-up,2-Month and 5 Months Post Start-up
New Soil Gas SWMU350-SG06 Vadose 6 6-inches 5.5-6 X
Monitoring SWMU350-SG07 Vadose 6 6-inches 5.5-6 X
Points SWMU350-SG08 Vadose 6 6-inches 5.5-6 X
SWMU350-SG09 I Vadose 6 6-inches 5.5-6 - X
QA/QCd X X
Count by Event: 12 7 5
Notes:
--Not applicable
'Aquifer zone for surficial groundwater monitoring wells unless otherwise specified,or for vadose zone(above water table)for soil gas monitoring points.
b Soil gas monitoring point implant includes an AT87 series,6-inch-long,stainless steel,wire mesh screen with top and bottom threaded fittings
Soil gas samples for USEPA TO-15 and PID readings collected for each event.
dQA/QC for groundwater sampling conducted for VOCs only:for groundwater,QA/QC included one trip blank per cooler,one equipment blank,one duplicate sample,and one matrix
spike/matrix spike duplicate sample;for soil gas,QA/QC samples included duplicate samples.
ft-feet
ft bgs-feet below ground surface
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TABLE 3
Summary of Groundwater Quality Parameters
SWMU 350 Naphthalene Biosparging Treatability Study
MCB Camp Lejeune,North Carolina
Well ID Date Temperature Conductivity DO pH ORP Turbidity
(°C) (MS/cm) (mg/L) (SU) (mV) (NTU)
7/15/2015 20.71 0.10 9.75 4.23 278.30 10.2
SWMU350-MW06 8/24/2015 21.26 0.07 10.30 4.15 163.80 2.73
11/4/2015 21.08 0.07 0.73 4.66 282.20 9.62
7/15/2015 19.84 0.06 8.77 4.16 258.80 9.94
SWMU350-MW16 8/25/2015 21.71 0.05 8.70 4.08 302.40 5.36
11/5/2015 19.50 0.06 2.30 3.50 280.30 3.39
SWMU350-MW47-18* 7/15/2015 24.94 0.16 1.10 4.00 332.70 5.78
8/25/2015 25.27 0.14 0.35 3.81 354.40 16.2
7/15/2015 21.19 0.11 2.00 4.18 342.70 696
SWMU350-MW47-30 8/25/2015 22.10 0.10 2.17 3.69 303.30 527
11/4/2015 21.30 0.15 2.69 4.00 285.10 15.5
SWMU350-MW48-18* 7/15/2015 23.78 0.11 0.64 4.34 350.60 8.98
8/24/2015 24.91 0.09 0.95 4.27 180.60 3.85
SWMU350-MW48-30* 7/15/2015 25.96 0.13 0.52 4.95 193.10 9.88
8/24/2015 23.30 0.10 0.11 4.98 -2.50 19.3
SWMU350-MW49-18* 7/15/2015 22.83 0.06 6.43 4.31 238.50 163
8/25/2015 27.39 0.06 6.94 4.24 300.70 259
7/15/2015 21.79 0.08 3.80 4.15 206.40 8.05
SWMU350-MW49-30 8/25/2015 25.55 0.08 6.85 4.06 303.00 14
11/5/2015 21.52 0.05 4.90 4.36 310.90 9.13
Notes:
* November 2015 data were not available for some wells because samples were collected using passive diffusion bags(PDB)technique
°C-degrees Celcius ORP-oxidation reduction potential
mS/cm-milliSiemens per centimeter mV- millivolts
DO-dissolved oxygen NTU-nephelometric turbidity unit
mg/L-milligram per liter SU-standard unit
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TABLE 4
Summary of Groundwater Elevations
SWMU 350 Naphthalene Biosparging Treatability Study
MCB CAMP LEJEUNE, North Carolina
Well ID
Total Depth Screened Interval Ground Surface Elevation Top of Casing Elevation Surface Completion Type Date Depth to Water Depth to Water Groundwater Elevation
(ft bgs) (ft bgs) (ft amsl) (ft amsl) (ft btoc) (ft bgs) (ft amsl)
11/6/2013 11.50 9.87 18.06
7/15/2015 9.95 8.32 19.61
SWMU350-MW06 15 8-18 27.93 29.56 Stick Up 8/24/2015 8.53 6.90 21.03
11/4/2015 NM N M NM
11/6/2013 9.80 8.21 17.63
SWMU350-MW16 30 20-30 25.84 27.43 Stick Up 7/15/2015 8.62 7.03 18.81
8/24/2015 7.05 5.46 20.38
11/4/2015 5.71 4.12 21.72
11/6/2013 10.10 10.29 17.67
SWMU350-MW47-18 18 8- 18 27.96 27.77 Flush 7/15/2015 7.83 8.02 19.94
8/24/2015 7.55 7.74 20.22
11/4/2015 5.97 6.16 21.80
11/6/2013 10.51 10.75 17.27
SWMU350-MW47-30 30 20-30 28.02 27.78 Flush 7/15/2015 9.80 10.04 17.98
8/25/2015 7.80 8.04 19.98
11/4/2015 6.60 6.84 21.18
11/6/2013 N M NM NM
SWMU350-MW48-18 18 8-18 25.98 25.66 Flush 7/15/2015 5.75 6.07 19.91
8/24/2015 9.09 9.41 16.57
11/4/2015 3.14 3.46 22.52
11/6/2013 N M NM NM
SWMU350-MW48-30 30 25-30 25.85 25.59 Flush 7/15/2015 6.70 6.96 18.89
8/24/2015 5.44 5.70 20.15
11/4/2015 4.20 4.46 21.39
11/6/2013 8.89 5.94 17.60
SWMU350-MW49-18 18 8- 18 23.54 26.49 Stick Up 7/15/2015 10.89 7.94 15.60
8/25/2015 6.71 3.76 19.78
11/4/2015 4.77 1.82 21.72
11/6/2013 8.94 5.91 17.54
SWMU350-MW49-30 30 25-30 23.45 26.48 Stick Up 7/15/2015 7.70 4.67 18.78
8/25/2015 6.10 3.07 20.38
11/4/2015 4.82 1.79 21.66
Notes:
ft bgs-feet below ground surface
ft amsl-feet above mean sea level
ft btoc-feet below top of casing
NM-Not Measured
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TABLE 5
Groundwater Analytical Results-Naphthalene
SWMU 350 Naphthalene Biosparging Treatability Study
MCB Camp Lejeune,North Carolina
Surficial Aquifer Five-Month 12-Month
Sampling Event Baseline One-Month Two-Month (3 month post shut- (10 month post shut-
Zone down) down)
Sample Date November 2013 July 2015 August 2015 November 2015 May/June 2016
NCGWQS for Naphthalene(µg/L) 6
Naphthalene(µg/I)
Station Location
SWMU350-MW06 15-foot 74 0.5 U 0.5 U 0.5 U 0.5 U
SWMU350-MW16 30-foot 59 0.5 U 0.5 U 0.5 U 0.5 U
SWMU350-MW47-18 15-foot 1 U 0.5 U 0.5 U 0.5 U 0.5 U
SWMU350-MW47-30 30-foot 7.8 2.4 J 2.6 J 0.5 U 0.5 U
SWMU350-MW48-18 15-foot NA 0.5 U 0.5 U 0.5 U 0.5 U
SWMU350-MW48-30 30-foot NA 0.5 U 0.5 U 0.5 U 0.5 U
SWMU350-MW49-18 15-foot 1 U 0.5 U 0.5 U 0.5 U 0.5 U
SWMU350-MW49-30 I 30-foot 0.59 J 0.5 U 0.5 U 0.5 U 0.5 U
Notes:
NCGWQS-North Carolina Groundwater Quality Standards
Shading indicates exceedance of NCGWQS
NA-Not analyzed
J-Analyte present,value may or may not be accurate or precise
U-The compound was analyzed for,but not detected
µg/I-Micrograms per liter
Page 1 of 1
12

TABLE 6
Summary of Soil Gas Analytical Results
SWMU 350 Naphthalene Biosparging Treatability Study
MCB CAMP LEJEUNE, North Carolina
Well ID Date Naphthalene Benzene
/m3 /m3
6/5/2015 0.8 U 0.4 U
SWMU350-SG06 7/9/2015 0.8 UJ 0.4 J
9/3/2015 0.8 U 0.4 U
6/5/2015 0.8 U 0.69 J
SWMU350-SG07 7/9/2015 0.8 U 0.4 U
9/3/2015 0.8 U 0.4 U
6/5/2015 NA NA
SWMU350-SG08 7/9/2015 NA NA
9/3/2015 NA NA
6/5/2015 0.8 U 0.69 J
SWMU350-SG09 7/9/2015 NA NA
9/3/2015 NA NA
Notes:
NA- Not analyzed
fag/m3 - micrograms per meter cubed
U - material analyzed for, but not detected
J - estimated value
Bold values indicate detection
Concentrations in soil gas did not exceed the North Carolina Division of Waste Management
Residential Vapor Intrusion Screening Level for Sub Slab and Exterior Soil Gas (October 2016) for
naphthalene of 20.9 lag/m3 or for benzene of 120 lag/m3 during the treatability study.
Page 1 of 1
13

Figures
14

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SWMU 350
tF
PAU ^�
O - - Ivy^.. O1�• TT$ - T�
W W *" A;Yr W
ai
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0
m
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, O '� 4
�O� r UNOW
' �F ^ i is ♦ _;,�, _ - _ -
Legend Figure 1
Natural Gas Main Line 0 2013 Naphthalene Biosparging Treatability Study Area Site Location Map
SWMU 350 Naphthalene Biosparging Treatability Study
Drainage Swale C3 2015 Naphthalene Biosparging Treatability Study Area MCB Camp Lejeune
= Highways N North Carolina
SWMU 350 Boundary 0 150 300 600
0 Former AST Locations Feet C142M-
O Installation Boundary 1 inch = 300 feet
15

R1ENBG\00 Pro\Tem S no tek\USNavFacEn Com405450\MCBCam Leeune\Ma Files\SWMU 350\425128 TS TM\2016\Fi ure 2 Na thalene Treatability Study Location Ma .mxd10/24/2016AM038876
I�
O � T
, t _
� � �' SWMU350-MW08
• ' ) ,' SWMU350-IW83=45
_ •. )�%W SWMU350-MW49-18
��� ��'�� �� _r'• SWMU350-MW49-30
• SWMU350-IW59 45 ,�� • �•*
• SWM�Uf350-MW16 SWMU350 MW48-18
fll
� } SWMU 350=M W48-30.
• SWMU350-IW60♦45
ti � � y,• = SWMU350-IW82-45
• • t SWMU350-IW6145 /SWMU350-SG06
SWMU350-MW47-18
SWMU 350-MW47-30
,SWMU350-SG07
,
SWMU350-SG08
r _ SWMU350-SG09
7 Equipment Compound
SWMU 350 Boundary >y l .� TT84
O Installation Boundary
2013 Naphthalene Biosparging r.
Treatability Study Area ;
0 2015 Naphthalene Biosparging 1
Treatability Study Area so
Former AST Plume NCGWQS Exceedances •
(November 2013) !
30ft Zone f -
Note:
Highlighted wells indicate biosparging � 1 r
performance monitoring locations. 116 ,
Legend „ Figure 2
Biosparging Well Location(45 ft bgs) Monitoring Wells Napthalene Treatability Study Location Map
Soil Gas Monitoring Points 15 ft zone SWMU 350 Naphthalene Biosparging
Natural Gas Line 30 ft zone N Treatability Study
New Biosparging Air Conveyance Line 55 ft zone 0 50 100 MCB Camp Lejeune
• New Horizontal Conveyance Boring 75 ft zone M06iiiiiiiii@ Feet North Carolina
O 115ft zone 1 inch = 100 feet
Ima er Source: ©2015 ESRI � �
16

F F� To SWMU350-IW59-45
P p
Pressure Pressure Gauge Flow Meter Check Valve
Pressure Flow Meter Globe Valve Regulator
Gauge Dwyer Globe Valve Stainless steel, Dwyer model (Brass)
(Brass) liquid filled, UV-B112
0-30 PSI
Rotary Screw tir Compressor
Kaeser BSD-50 R �I' To SWMU350-IW60-45
(50 hp, 83 full load amps) P
460V/3-phase/6OHz,
air-cooled, Pressure Gauge Flow Meter Check Valve
125 PSIG max. pressure Globe Valve Stainless steel, Dwyer model (Brass)
(Brass) liquid filled, UV-B112
0-30 PSI
F� To SWMU350-IW61-45
P
Pressure Gauge Flow Meter Check Valve
Globe Valve Stainless steel, Dwyer model (Brass)
(Brass) liquid filled, UV-B112
0-30 PSI
To SWMU350-IW62-45
P
Pressure Gauge Flow Meter Check Valve
Globe Valve Stainless steel, Dwyer model (Brass)
(Brass) liquid filled, UV-B112
0-30 PSI
To SWMU350-IW63-45
\ P
Pressure Gauge Flow Meter Check Valve
Globe Valve Stainless steel, Dwyer model (Brass)
(Brass) liquid filled, UV-B112
0-30 PSI
Figure 3
Piping and Instrumentation Diagram
SWMU 350 Naphthalene Biosparging
Treatability Study
MCB Camp Lejeune
North Carolina
dam'

R:\USNAVFACENGCOM405450\MCBCAMPLEJEUNE\MAPFILES\SWMU 350\425128 TS TM\2016\FIGURE 4 NAPHTHALENE AND DISSOLVED OXYGEN CONCENTRATIONS11X17.MXD AMITCHUM CH2MHILLENV10/5/20162:21:22PM
MV4WW
1420factfrom r*6345
t , 5
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,
90 I 16 r•t k
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,
10 I z
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1"' tid 'tiA 1b 1D` by 1h by tib tib
Date
—Groundwater Analytical Results-Naphthalene IDO(mg/L) —System Startup --System Shut Down
f SWMU350-MW06
-
�� SWMU350-IW63145 R
MW16-30
20 feet from IW59.45
100 18 - z� _. _
SWMU350-MW4-9 8
I
90 , 16 SWMU350-MW49-30
? 80 I 14
70
• II SWMU350-IW55 WMU353 1 0-MW48-18
12 -
�r i SWMU350-MW48-30
w 60
n I 10 SWMU350-IW60-45
I
z 50 a -
•
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8
40 i SWMU350-IW625
I 6 SWMU3501IW61-45 SWMU350-SG06
30
I
20 I SWM U350-M W 47-18
,
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I SWMU350-SG09
SW M U350-SG 07 -
o � 0 - SWMU350-SG08 1 _
�~� tia ~� ti° ti°' by by by tib ti6
-
Date
—Groundwater Analytical Results-Naphthalene =—DO(mg/L) —System5tartup --System Shut Down
' TT84
MW47-30
- 40 feet from IW61-45
IO 18
9 16
1 I
t
8
14
SWMU350-MW41' 5
12
6 I m
m Equipment Compound 10
SWMU 350 Boundary s ,
O Installation Boundary 4 8
2013 Naphthalene Biosparging `.; ;
6
Treatability Study Area sWMu350-Mw3s-55 a
2015 Naphthalene Biosparging ,
U350- W39-75
� SWM M 4 Treatability Study Area z ,
Former AST Plume NCGWQS Exceedances I 2
- 1
(November 2013) _ I
30ft Zone D I 0
Note: ti3 ti' ti° ti� tia tih tih ,`' tie ti�
Highlighted wells indicate biosparging
Date
performance monitoring locations. —GroundwaterAnalyticalResults-Naphthalene —DO(mg/L) —System Startup --System Shut Down
Legend Figure 4
Biosparging Well Location (45 ft bgs) Monitoring Wells Naphthalene and Dissolved Oxygen Concentration
• Soil Gas Monitoring Points & 15 ft zone N Trend Graphs - 30-foot zone
Biosparging Air Conveyance Line 0 30 ft zone 0 50 100 200 SWMU 350 Naphthalene Biosparging
— Horizontal Conveyance Boring & 55 ft zone Feet Treatability Study
Natural Gas Line • 75 ft zone MCB Camp Lejeune
O 115ft zone 1 inch = 100 feet North Carolina
d'12AW
18

Baseline - 5 Months Post Startup - ,.: . 12 Months Post Startup
t r
�• -.y"�� SWMU350-MWO6 1, 5WMU350-MWO6 5WMU350-MWO6
•� (; SWMU350-IW63d5 + - SWMU350-IW63d5 SWMU350-IW63d5 _
; + k
� �� .<�• _ .. �� ��:t. � ems, _ "�lt. �
SWMU350-MW49.18 � �- � SWMU350-MW49.18 SWMU350-MW49-18
T
7 U - O.S U ,
y� •y SWMU350-MW49-30 - �. � SWMU350-MW49-30 � SWMU350-MW49-30
5 0-M 'I y 4'- MU350-MW16 SWMU30505-MU W48-18 '`1 SWMU350-MWt6 U350-IW59d5 SWMU30505-MW48-
0 SWSWMU350 \MU35 -IW59d SWMU35N 9d SWM
59 18
U
"S'SWMU350-MW48-30 Ih b' SWMU350-MW48.30 5WMU350-MW48.30.
SWMU350-IW60d5 O.SU -� - r'- '2 ';, ,? SWMU350-IW60d5 0.5U T - SWMU350-IW60d5 0.5U
/SWMU350-IW62d5 -� { � 11l SWMU350-IW62d5 - �� /SWMU350-IW62d5 -
/SWMU350-SGO6 �• SWMU350-IW61d5 .SWMU350-SGO6 -.. `r SWMU350-SGO6
SWMU350-IW61 d5 Y SWMU350-IW61 d5
T, \/y
SWMU350-MW47-18 b SWMU350-MW47-18 !l�!:'\ �i. - SWMU350-MW47-1�
r _
SWMU350-MW47-30 = SWMU350-MW47-30= SWMU350-MW47-30
- 7.8 '�- 0.5U
SWMU350-SG07 M SWMU350,-SG0707 �•• � SWMU350-SG07
SWMU350SG08 - - - --- ,� SWMU350-SGOB - _ - - --. ,� SWMU350-SG08•.
SWMU350-SG09 - - - SWMU350-SG09 - SWMU350-SG09 _-.-
fw • - _ - - +"- Y ;' -� _ �r ,�_ _ y� _ ip g - .TT84
�r
ELI 'A t. r
Legend Notes:
® Equipment Compound Former AST Plume NCGWQS Exceedances • Biosparging Well Location(45 ft bgs) Monitoring Wells 1) Highlighted wells indicate biosparging 6) NCGWQS for Naphthalene is 6 ug/L
SWMU 350 Boundary
(November 2013) • Soil Gas Monitoring Points 15 ft zone
performance monitoring locations 7)J-analyte present,value may or may not
�
30ft Zone 2) Concentrations shown in ug/L be accurate or precise North
Installation Boundary +■■Biosparging Air Conveyance Line 30 ft zone
IO rY 3) Baseline event data collected in November 8) UJ-analyte not detected,quantitation limit 0 50 100
Naphthalene Concentrations—November
0 Horizontal Conveyance Boring 2013 Naphthalene Biosparging 2013 y g 0 55 ft zone 2013 may be inaccurate FTTTSiiiiia Feet
Treatability Study Area 60 µg/L 0 75 ft zone 4) 5-Month Post Startup data collected 9) U-analyte analyzed for but not detected
IO 2015 Naphthalene Biosparging November 2015 10)NA-Not Analyzed
Treatability Study Area 6 µg/L —Natural Gas Line 5) 12 month post startup data collected in
May/June,2016
Figure 5
Naphthalene Plume—Surficial
Aquifer(30-foot Zone)
SWMU 350 Naphthalene
Biosparging Treatability Study
MCB Camp Lejeune, North Carolina
C412W-
EN051816115OWDC Fig5_CL_SWMU_350_TS_P1ume_Surflda1Aquifer_30-ft.ai
19

Attachment 1
Well Completion Diagrams
20

PROJECT NUMBER WELL NUMBER
472752.03.PT.PT IW59-45 SHEET 1 OF 1
CH2MHILL
WELL COMPLETION DIAGRAM
PROJECT:SWMU 350 Naphthalene Biosparging Treatability Study LOCATION:MCIEAST-MCB CAMLEJ
DRILLING CONTRACTOR: Terrasonic NORTHING: EASTING:
DRILLING METHOD AND EQUIPMENT USED:6"Rotosonic
WATER LEVELS: 10 feet bgs START:06/09/15 END:06/09/15 LOGGER:M.Ost
3
3b \ 2 1\ 1-Ground elevation at well NA
2-Top of casing elevation NA
3-Wellhead protection cover type Buried
a)Bollards NA
b)concrete pad dimensions NA
8--- 40'
4-Dia./type of well casing 2"Sch 40 PVC
42'
43' 5-Type/slot size of screen 2"Sch 40 PVC-0.006 slot
7
45' 6-Type screen filter #1 silica pack
4 a)Quantity used 1 bag
7-Type of seal Bentonite 3/8"chips
a)Quantity used 1 bag
5 8-Grout
a)Grout mix used Portland Cement,Bentonite grout
b)Method of placement tremie
c)Vol.of well casing grout 75 gallons
Development method Whale Pump
2' 6
Development time 10 minutes
Estimated purge volume 20 gallons
Comments Biosparging well.Connected to air compressor.Head is buried.
Page 1 of 1
21

PROJECT NUMBER WELL NUMBER
472752.03.PT.PT IW60-45 SHEET 1 OF 1
CH2MHILL
WELL COMPLETION DIAGRAM
PROJECT:SWMU 350 Naphthalene Biosparging Treatability Study LOCATION:MCIEAST-MCB CAMLEJ
DRILLING CONTRACTOR: Terrasonic NORTHING: EASTING:
DRILLING METHOD AND EQUIPMENT USED:6"Rotosonic
WATER LEVELS: 10 feet bgs START:06/10/15 END:06/10/15 LOGGER:M.Ost
3
3b \ 2 1\ 1-Ground elevation at well NA
2-Top of casing elevation NA
3-Wellhead protection cover type Buried
a)Bollards NA
b)concrete pad dimensions NA
8--- 40'
4-Dia./type of well casing 2"Sch 40 PVC
42'
43' 5-Type/slot size of screen 2"Sch 40 PVC-0.006 slot
7
45' 6-Type screen filter #1 silica pack
4 a)Quantity used 2 bags
7-Type of seal Bentonite 3/8"chips
a)Quantity used 1 bag
5 8-Grout
a)Grout mix used Portland Cement,Bentonite grout
b)Method of placement tremie
c)Vol.of well casing grout 75 gallon
Development method Whale Pump
2' 6
Development time 10 minutes
Estimated purge volume 20 gallons
Comments Biosparging well.Connected to air compressor.Head is buried.
Page 1 of 1
22

PROJECT NUMBER WELL NUMBER
472752.03.PT.PT IW61-45 SHEET 1 OF 1
CH2MHILL
WELL COMPLETION DIAGRAM
PROJECT:SWMU 350 Naphthalene Biosparging Treatability Study LOCATION:MCIEAST-MCB CAMLEJ
DRILLING CONTRACTOR: Terrasonic NORTHING: EASTING:
DRILLING METHOD AND EQUIPMENT USED:6"Rotosonic
WATER LEVELS: 10 feet bgs START:06/11/15 END:06/12/15 LOGGER:M.Ost
3
3b \ 2 1\ 1-Ground elevation at well NA
2-Top of casing elevation NA
3-Wellhead protection cover type Buried
a)Bollards NA
b)concrete pad dimensions NA
8--- 40'
4-Dia./type of well casing 2"Sch 40 PVC
42'
43' 5-Type/slot size of screen 2"Sch 40 PVC-0.006 slot
7
45' 6-Type screen filter #1 silica pack
4 a)Quantity used 2 bags
7-Type of seal Bentonite 3/8"chips
a)Quantity used 1 bag
5 8-Grout
a)Grout mix used Portland Cement,Bentonite grout
b)Method of placement tremie
c)Vol.of well casing grout 75 gallons
Development method Whale Pump
2' 6
Development time 10 minutes
Estimated purge volume 20 gallons
Comments Biosparging well.Connected to air compressor.Head is buried.
Page 1 of 1
23

PROJECT NUMBER WELL NUMBER
472752.03.PT.PT IW62-45 SHEET 1 OF 1
CH2MHILL
WELL COMPLETION DIAGRAM
PROJECT:SWMU 350 Naphthalene Biosparging Treatability Study LOCATION:MCIEAST-MCB CAMLEJ
DRILLING CONTRACTOR: Terrasonic NORTHING: EASTING:
DRILLING METHOD AND EQUIPMENT USED:6"Rotosonic
WATER LEVELS: 10 feet bgs START:06/10/15 END:06/11/15 LOGGER:M.Ost
3
3b \ 2 1\ 1-Ground elevation at well NA
2-Top of casing elevation NA
3-Wellhead protection cover type Buried
a)Bollards NA
b)concrete pad dimensions NA
8--- 40'
4-Dia./type of well casing 2"Sch 40 PVC
42'
43' 5-Type/slot size of screen 2"Sch 40 PVC-0.006 slot
7
45' 6-Type screen filter #1 silica pack
4 a)Quantity used 2 bags
7-Type of seal Bentonite 3/8"chips
a)Quantity used 1 bag
5 8-Grout
a)Grout mix used Portland Cement,Bentonite grout
b)Method of placement tremie
c)Vol.of well casing grout 75 gallons
Development method Whale Pump
2' 6
Development time 10 minutes
Estimated purge volume 20 gallons
Comments Biosparging well.Connected to air compressor.Head is buried.
Page 1 of 1
24

PROJECT NUMBER WELL NUMBER
472752.03.PT.PT IW63-45 SHEET 1 OF 1
CH2MHILL
WELL COMPLETION DIAGRAM
PROJECT:SWMU 350 Naphthalene Biosparging Treatability Study LOCATION:MCIEAST-MCB CAMLEJ
DRILLING CONTRACTOR: Terrasonic NORTHING: EASTING:
DRILLING METHOD AND EQUIPMENT USED:6"Rotosonic
WATER LEVELS: 10 feet bgs START:06/12/15 END:06/12/15 LOGGER:M.Ost
3
3b \ 2 1\ 1-Ground elevation at well NA
2-Top of casing elevation NA
3-Wellhead protection cover type Buried
a)Bollards NA
b)concrete pad dimensions NA
8--- 40'
4-Dia./type of well casing 2"Sch 40 PVC
42'
43' 5-Type/slot size of screen 2"Sch 40 PVC-0.006 slot
7
45' 6-Type screen filter #1 silica pack
4 a)Quantity used 2 bags
7-Type of seal Bentonite 3/8"chips
a)Quantity used 1 bag
5 8-Grout
a)Grout mix used Portland Cement,Bentonite grout
b)Method of placement tremie
c)Vol.of well casing grout 75 gallons
Development method Whale Pump
2' 6
Development time 10 minutes
Estimated purge volume 20 gallons
Comments Biosparging well.Connected to air compressor.Head is buried.
Page 1 of 1
25

Attachment 2
Operations and Maintenance Logs
26

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed/RAL
Date/Time On-Site: 6/25/15 1408
Lone Worker Check-In:
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 101 Temperature= 176°F
Regulator Pressure
inside Conex) -- 60
Total System 54.89 --
SWMU350-IW59-45 5.5 21
SW M U 350-I W 60-45 9 15.5
SWMU350-IW61-45 10 18.5
SWMU350-IW62-45 10 18.5
SWMU350-IW63-45 8.5 16.5
Lone Worker Check-Out (Offsite Time): 1430
Signature/Date: 6/25/15
Notes:
*Initial Start-Date = 6/15/15
27

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed/RAL
Date/Time On-Site: 7/16/15 1100
Lone Worker Check-In:
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 103 Temperature= 176°F
Regulator Pressure
inside Conex) -- 52.5
Total System 72.56 --
SW M U350-I W59-45 12 23
SW M U 350-I W 60-45 12 18
SWMU350-IW61-45 12 20
SWMU350-IW62-45 12 19.5
SWMU350-IW63-45 12 18
Lone Worker Check-Out (Offsite Time): 1130
Signature/Date:
Notes:
*Initial Start-Date = 6/15/15
28

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed
Date/Time On-Site: 7/24/2015 1300
Lone Worker Check-In:
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 105 Temperature= 174 °F
Regulator Pressure
inside Conex) -- 55.5
Total System 74.66 --
SW M U350-I W59-45 12 23
SW M U 350-I W 60-45 15 18.5
SWMU350-IW61-45 15 20
SWMU350-IW62-45 15 20
SWMU350-IW63-45 12 18
Lone Worker Check-Out (Offsite Time 7/24/2015
Signature/Date:
Notes:
*Initial Start-Date = 6/15/15
29

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed/RAL
Date/Time On-Site: 7/30/15 1300
Lone Worker Check-In:
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 109 Temperature= 173 °F
Regulator Pressure
inside Conex) -- 50
Total System 72.88
SWMU350-IW59-45 g 19 increased flow to 12 scfm
SW M U 350-I W 60-45 16 15
SWMU350-IW61-45 14 19 increased flow to 15 scfm
SWMU350-IW62-45 14 18.5 increased flow to 15 scfm
SWMU350-IW63-45 11 16.5 increased flow to 12 scfm
Lone Worker Check-Out (Offsite Time):
Signature/Date:
Notes:
*Initial Start-Date = 6/15/15
30

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed
Date/Time On-Site: 8/7/2015
Lone Worker Check-In: 1100
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 60 Temperature= 176 OF
Regulator Pressure
inside Conex) -- 114
Total System 63.49 --
SWMU350-IW59-45 12 20
SW M U 350-I W 60-45 12 15.5
SWMU350-IW61-45 12 19
SWMU350-IW62-45 12 20
SWMU350-IW63-45 12 16
Lone Worker Check-Out (Offsite Time): 1130
Signature/Date:
Notes:
*Initial Start-Date = 6/15/15
31

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed
Date/Time On-Site: 8/10/2015
Lone Worker Check-In: 1300
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 114 Temperature= 177 OF
Regulator Pressure
inside Conex) -- 55
Total System 69.45 --
SWMU350-IW59-45 15 20
SW M U 350-I W 60-45 15 15.5
SWMU350-IW61-45 15 19
SWMU350-IW62-45 15 20
SWMU350-IW63-45 15 17.5
Lone Worker Check-Out (Offsite Time): 1330
Signature/Date:
Notes:
*Initial Start-Date = 6/15/15
32

Biosparging System Information
SWMU 350 Naphthalene Biosparging Treatability Study
Team: David Seed
Date/Time On-Site: 8/14/15
Lone Worker Check-In: 1300
System Status (circle): ON OFF
Oil Level (% Full):
Biosparging System Flow
Information (scfm) Pressure(psig) Comments
Air Compressor Pressure
on mainpanel) -- 104 Temperature= 176 OF
Regulator Pressure
inside Conex) -- 60
Total System 72.47
SWMU350-IW59-45 15 19.5
SW M U 350-I W 60-45 15 14.5
SWMU350-IW61-45 15 18
SWMU350-IW62-45 15 19
SWMU350-IW63-45 16 17.5
Lone Worker Check-Out (Offsite Time): 1330
Signature/Date:
Notes:
*Initial Start-Date = 6/15/15
33

Attachment 3
Data Logging Trend Graphs
34

MW16 (30-foot well)
20 feet from IW59-45
12 100
80
10
60
g
E b
oa
�. c
40 t
pp U
T 6
O 4'
v 20 �
> W
O W
vyi 4 L_
0
2
-20
0 -40
ATTACHMENT 3
DO (mg/L) Date Data Logging Trend Graphs
System Startup SWMU 350 Naphthalene Biosparging Treatability Study
Ch2M'
35

MW47-18
40 feet from IW61-45
12 1.5
10
1
v
cu
J
bb 8 GJ
0.5 t
pill
v V
Cu0
A C
O 6 4�
M
v >
> O
O 0 W
0 v
4
-0.5
2
0 -1
toc
(.0 O\� � ATTACHMENT 3
Date Data Logging Trend Graphs
DO (mg/L) System Startup SWMU 350 Naphthalene Biosparging Treatability Study
Water Level (feet) MCB Camp Lejeune, North Carolina
CA2 U-
36

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40 feet from IW61-45
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ATTACHMENT
Date Data Logging Trend Graphs
DO (mg/L) System Startup SWMU 350 Naphthalene Biosparging Treatability Study
Water Level (feet) MCB Camp Lejeune, North Carolina
CH?4%-
37