1 of 41 field analytical methods presenter: sebastian tindall dqo training course day 3 module 22...
TRANSCRIPT
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Field Analytical Methods
Presenter: Sebastian Tindall
DQO Training CourseDay 3
Module 22
(15 minutes)(15 minute 2nd Afternoon Break)
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Surface & Subsurface Imaging using DPT Rigs, Sensor Technology and Onsite Analysis Tools
Direct Sensing Technology
A fundamentally better approach for mapping the surface & subsurface
For Brownfields, Property Transfers, NPL sites
Copyright and Patents Pending: Columbia Technologies, 2002
2002 Columbia Technologies
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The Problem• Heterogeneity is the norm• Most investigations are not defensible
– Too few samples– Samples are not representative
• Sampling error supercedes/exceeds lab error• Most clean-up efforts fail
A much larger number of data points are required to reduce uncertainty.
2002 Columbia Technologies
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Managing Uncertainty
• Managing Uncertainty Approach– Systematic Planning– Real Time Measurements– Dynamic Work Plans
• The 7-Step Data Quality Objective Process
2002 Columbia Technologies
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SmartData SolutionsTM
A comprehensive approach integrating recent advances in:
• Sensor technology
• Rapid computational analysis
• Interactive 3D web-casts
2002 Columbia Technologies
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SmartData SolutionsTM
We can now quickly and reliably:
• Provide comprehensive images of the subsurface.
• Manage uncertainty and assess risk.
• Avoid downstream failures and costs.
• Monitor remediation performance.
• Obtain more cost-effective closure.
2002 Columbia Technologies
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SmartData SolutionsTM
SmartData - A continuous stream of chemical and physical data, available in a geo-referenced, digital
and user-friendly format.
Use it for the 3D imaging of subsurface• sources, • pathways, • soil types • remediation effectiveness
Integration with other site data, such as: • Constituent-specific data from discrete/composite samples• Physical features from surface and subsurface
2002 Columbia Technologies
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Advantages of SmartData?
• Large amounts of geo-referenced, digital data that can be rapidly reviewed, processed, posted and displayed for real time analysis and decision making.
• Data that is easily correlated and cross-checked with other data.
2002 Columbia Technologies
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Types of SmartData• The MIP/EC Probe for Fuels and Solvents
– Membrane Interface Probe/Electrical Conductivity– MIP/CPT
• LIF/UVIF – SCAPS/ROST/FFD for Fuels– Laser Induced or UV Fluorescence +/- MIP– LIF/CPT
• Range of Emerging Tools
2002 Columbia Technologies
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Membrane Interface and Conductivity Probe
• For detecting LNAPL, DNAPL,dissolved phase and gas phase VOCs.
• For locating sources and plumes in vadose and saturated zones, in sands and clays.
• For locating hydrologic and geologic units.• For assessing risk of mass transport. • For monitoring treatment effectiveness
2002 Columbia Technologies
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3D Image of Solvent Spill Produced from MIP Profiles
2002 Columbia Technologies
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MIP Downhole Probe
• Heated probe • Semi-permeable
membrane• Contaminant vapors
partition into a carrier gas
• Transported to FID, PID, & ECD detectors at the surface
• Results are displayed in real-time on a lap-top computer.
2002 Columbia Technologies
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Direct Sensing MIP/EC
2002 Columbia Technologies
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Multiple Platforms
• Direct push rigs• CPT units• Drill rigs• Waterborne• All-terrain track• Indoor – limited
access
2002 Columbia Technologies
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Cycle Time = MonthsCycle Time = Months
Historical Process
CoreCore Lab Lab DataDataGapsGapsMapMap ReportsReportsSampleSample ShipShip
SubcontractorsSubcontractors E/C FirmsE/C Firms RegulatorsRegulators
2002 Columbia Technologies
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The Data Problem
• Where are you going to sample?
• How many samples are you going to take?
• Can you get a representative sample?
2002 Columbia Technologies
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SmartData SolutionsTM
SensorSensorss
Advanced Advanced AnalyticsAnalytics
InternetInternetDeliveryDelivery
Cycle Time = Cycle Time = HoursHours
2002 Columbia Technologies
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Smart Sensors
• Continuous profile of subsurface = NO VERTICAL DATA GAPS
• High data density• FAST = Real time information • Combines chemical and geological information• Reproducible in all soil and groundwater
matrices
2002 Columbia Technologies
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Deployable Sensor Systems
Dakota TechnologiesChlorinated Solvents
DNAPL Source Areas
Haloprobe
MultiplePOL hydrocarbons
Chlorinated solvents
Methane
All phases – 200 ppb
Membrane Interface Probe
Dakota TechnologiesCoal tars, creosotes, crudeTarGOST
Vertek supplier
Dakota Technologies
POL Hydrocarbons
No chlorinateds
No dissolved phase
100 PPM
Fuel Fluorescence Detector (FFD)
Hyperlogger
SCAPS (Army, Navy)
ROST (Fugro Geosciences)
Dakota Technologies
POL Hydrocarbons
No chlorinateds
No dissolved phase
10 PPM
Laser Induced Fluorescence (LIF)
ProviderTargetSensors
2002 Columbia Technologies
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Multiple Detector Response
Conductivity
FID Detector
PID Detector
ECD Detector
Speed
Temperature
2002 Columbia Technologies
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MIP – GC/MS Correlation
Base of Monitoring Well Above Contaminant
Strong Correlation to GW Sampling and On-Site
Analysis
2002 Columbia Technologies
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Making Data Smart
SmartDataBase
(Patent Pending)
Smart Database• QA/QC Error trapping• Data normalization• Site and contaminant comparison• Formatting and visualization
• Customer Web Interface• Web Cast• Report Deliverables
2002 Columbia Technologies
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Multiple 3D Site Views
Comparison of Comparison of GW Samples to GW Samples to
Continuous Sensor ProfileContinuous Sensor Profile
3D Video of Plume 3D Video of Plume vs. GW Wellsvs. GW Wells
2002 Columbia Technologies
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SmartData SolutionsTM Investigation Strategy
• Use MIP/EC to obtain detailed logs of site.• Generate comprehensive 3-D image. • Then select “more fully representative”
discrete samples for analysis.• Make decisions, focus monitoring/treatment
and close sites, based on the “whole picture”.
2002 Columbia Technologies
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SmartData SolutionsTM Site Assessment Benefits
• Fewer but better sample and monitoring well locations.
• Stop endless investigations!
• Prevent/limit the big problem sites.
2002 Columbia Technologies
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3D Image - Plan View
2002 Columbia Technologies
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Minimum MIP-PID Response
Note the plume appears unbounded at these locations
2002 Columbia Technologies
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Same Site - plume based on limited lab results
DPT Sample Results Color indicates BTEX concentration in ug/L
BTEX plume based on DPT results – less resolution
2002 Columbia Technologies
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SmartData SolutionsTM Risk Assessment
• Calculate contaminant mass per hydrogeologic unit
• Determine mass available for migration
• Determine risk from available mass
• Assess monitoring options vs remedial options per hydrogeologic unit
2002 Columbia Technologies
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SmartData SolutionsTM Risk Assessment Benefits
• Provide adequate basis for RBCA.
• Reduce Regulator’s uncertainty.
• Increase confidence in fate and transport modeling with more data density.
2002 Columbia Technologies
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SmartData SolutionsTM Remediation Strategy
• Use detailed MIP and EC data to assess risk and, if needed, to focus treatment.
• Clearly differentiate available mass.• Target units with available mass.• Monitor treatment effectiveness with
second MIP survey.
2002 Columbia Technologies
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Available Mass Assessment
0 5 10 15 20 25 30 35 40
-30
-25
-20
-15
-10
-5
Distance in Feet (10x)
Dep
th in
Fee
t
M IP Location 5 M IP Location 3M IP Location 2 M IP Location 7
1E+006
3E+006
5E+006
8E+006
PID (uV)
C olum bia Technologiesw w w.colum biadata.com
1-888-344-2704
BTEX Transect, A to BIn C enterline D irection of G roundw ater F low
0
2
9
16
23
Soil Conductivity (mS/M)
Direction of G roundwater F low
M IP Location 14
2002 Columbia Technologies
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Feasibility Assessment Benefits
• Understand location of chemicals relative to geology.
• Understand pathways and treatment potential.
• Treat only if rational.
• Focus each treatment.
2002 Columbia Technologies
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Natural Degradation of Petroleum
S oil C onductiv ityin m S /m
E stim ated D istance in x10 Feet
Depth
in
Feet
P ID R esponsein uV
M IP -09M IP -10M IP -07M IP -01M IP -02
0 2 4 6 8 10 12 14 16 18 20
-12
-10
-8
-6
-4
-2
0
0
10
20
30
40
A A'
Finer G ra inedPartic les
C ourser G ra inedPartic les
G roundw ater
3E+006
5E+006
3E+006
5E+006
FID R esponsein uV
2002 Columbia Technologies
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Benefits from using SmartData SolutionsTM
• More complete source characterization than traditional phased approach.
• Better source and plume delineation in relationship to stratigraphy = more realistic, effective, and targeted remediation.
• Net Result:– More realistic planning– Quicker assessments and cleanups– Lower overall project cost
2002 Columbia Technologies
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How does SmartData SolutionsTM lower costs?
• Reduces time on site and need for revisits.
• Reduces need/# of lab samples.
• Reduces need/# of monitoring wells.
• Expedites reporting.
• Provides better documentation for Monitored Natural Attenuation, Technical Impracticability or RCRA based closures.
2002 Columbia Technologies
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Summary• SmartData SolutionsTM Lowers Costs and
Increases Success in:– Source area and plume characterization– Migration pathway delineation– Remediation effectiveness– Performance monitoring– Verification sampling
With higher resolution data, presented as a comprehensive 3D image of the subsurface,
while the teams are still in the field.
2002 Columbia Technologies
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Case Studies
http://www.columbiadata.com/coltech/aol_gmail.cfm?id=31
2002 Columbia Technologies
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J. Edward “Ned” Tillman, Columbia Technologies
1450 So Rolling RdBaltimore, MD 21227
410-536-9911410-536-0222 (Fax)
[email protected]://www.columbiadata.com
For further information:
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Field Analytical Methods
Web Sites:
http://fate.clu-in.org/
http://www.frtr.gov/site/
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End of Module 22
Thank you
Questions?
We will now take our second 15 minute afternoon break.
Please be back in 15 minutes.