Field-Based Analysis of Chlorinated Volatile Organic Halocarbons Field-Based Analysis of Chlorinated Volatile Organic Halocarbons AQR Color-Tec ® AQR Color-Tec ®

What is AQR Color-Tec ® ? u Field test kit for chlorinated solvents u Detects total chlorinated halocarbons (CVOHs) in soil and water samples to less than 3 µg/L or µg/kg u Provides qualitative data and estimated concentrations u Results in 3 minutes per sample u Over 20,000 samples analyzed u Initially developed in 1997 u Tested and verified at EPA, DOD, DOE and state chlorinated solvent site investigations u Commercial production began 2007 u Field test kit for chlorinated solvents u Detects total chlorinated halocarbons (CVOHs) in soil and water samples to less than 3 µg/L or µg/kg u Provides qualitative data and estimated concentrations u Results in 3 minutes per sample u Over 20,000 samples analyzed u Initially developed in 1997 u Tested and verified at EPA, DOD, DOE and state chlorinated solvent site investigations u Commercial production began 2007

Statistical Comparison of Split-Sample CG/MS Results to AQR Color-Tec ® Zero Values Only (non-detections) (typical chlorinated solvent site data set N = 42) Statistical Comparison of Split-Sample CG/MS Results to AQR Color-Tec ® Zero Values Only (non-detections) (typical chlorinated solvent site data set N = 42) Parameter Concentration (µg/L) Mean Range 0 to 2.55 Standard Deviation % UCL of the mean th Percentile Value th Percentile Value Parameter Concentration (µg/L) Mean Range 0 to 2.55 Standard Deviation % UCL of the mean th Percentile Value th Percentile Value AQR Color-Tec ® Method Detection Limits AQR Color-Tec ® detects all CVOHs to less than 3 µg/L AQR Color-Tec ® detects all CVOHs to less than 3 µg/L

AQR Color-Tec ® results consistently indicate a relative correlation to split sample laboratory GC/MS (EPA 8260B) comparison data. This graph shows the relative correlation by plotting AQR Color-Tec readings with the split sample GC/MS concentrations of total CVOHs detected in 61 groundwater samples from a chlorinated solvent site. AQR Color-Tec ® results consistently indicate a relative correlation to split sample laboratory GC/MS (EPA 8260B) comparison data. This graph shows the relative correlation by plotting AQR Color-Tec readings with the split sample GC/MS concentrations of total CVOHs detected in 61 groundwater samples from a chlorinated solvent site. AQR Color-Tec ® Comparison to GC/MS data

Pre-filtered ambient air is purged through the sample, stripping the volatile compounds into the headspace Hand-Operated Vacuum Pump (100cc) Pump Handle Colorimetric Tube Tygon Tubing Pump Stand Carbon Filter Purge Needle (long) Headspace (~30%) Water Sample 40 ml VOA Vial Ambient air enters through carbon filter Air Flow Air Bubbles AQR Color-Tec ® Open-Loop Stripping Analysis Procedure

Purged volatile compounds pass through the headspace, needle, and tubing into the colorimetric tube where they react and cause a distinct color change Hand-Operated Vacuum Pump (100cc) Pump Handle Colorimetric Tube Tygon Tubing Pump Stand Carbon Filter Purge Needle (long) Headspace (~30%) Water Sample Ambient air enters through carbon filter Air Bubbles Air Flow 40 ml VOA Vial AQR Color-Tec ® Open-Loop Stripping Analysis Procedure

Analyze liquid or solid samples Headspace Water Sample Added Water (de-ionized) Added Water (de-ionized) Headspace Soil Sample Water Set-up Soil Set-up AQR Color-Tec ® Sampling Media Samples and tubes are heated before Analysis

AQR Color-Tec ® Conversion Table u Converts AQR Color-Tec ® tube readings to µg/L or µg/kg u Based on comparison of Color-Tec data to GC/MS data using over 5000 water samples collected from 152 chlorinated solvent sites. u A “Median” estimated value for each Color-Tec reading was obtained using statistical comparison of Color-Tec data and GC/MS (EPA Method 8260B) data. u The “Range” value reflects the potential deviation from the Median value based on the Color-Tec and EPA Method 8260B comparison results. u Converts AQR Color-Tec ® tube readings to µg/L or µg/kg u Based on comparison of Color-Tec data to GC/MS data using over 5000 water samples collected from 152 chlorinated solvent sites. u A “Median” estimated value for each Color-Tec reading was obtained using statistical comparison of Color-Tec data and GC/MS (EPA Method 8260B) data. u The “Range” value reflects the potential deviation from the Median value based on the Color-Tec and EPA Method 8260B comparison results.

48 Color-Tec $25 each 6 Laboratory $100 each Definitive analysis provides high analytical accuracy, but sampling quantity is often limited to control costs, resulting in data gaps, sampling uncertainty, and low overall data quality Laboratory Sampling Only AQR Color-Tec ® with Laboratory sampling Total Cost = $1, $100 each The low per-sample cost of AQR Color-Tec ® allows for more samples, resulting in increased coverage and reduced uncertainty. The AQR Color-Tec ® data is used to focus definitive analysis sampling onto critical areas. Combining AQR Color-Tec ® with laboratory sampling increases overall data quality at a lower cost by providing improved sampling coverage with high analytical accuracy. The low per-sample cost of AQR Color-Tec ® allows for more samples, resulting in increased coverage and reduced uncertainty. The AQR Color-Tec ® data is used to focus definitive analysis sampling onto critical areas. Combining AQR Color-Tec ® with laboratory sampling increases overall data quality at a lower cost by providing improved sampling coverage with high analytical accuracy. Total Cost = $2,400 AQR Color-Tec ® Increases Sampling Coverage

AQR Color-Tec ® Comprehensive Instructions u Detailed Procedures Manual l Kit Set-up l Method principles l Sample Collection l Reading the tubes l QA/QC procedures l Trouble shooting guide l Conversion Table l References l Method Applications u Detailed Procedures Manual l Kit Set-up l Method principles l Sample Collection l Reading the tubes l QA/QC procedures l Trouble shooting guide l Conversion Table l References l Method Applications

EPA Guidance Featuring AQR Color-Tec ® u Site Characterization Technologies for DNAPL Investigations September 2004; EPA 542-R ; in.org/download/char/542r04017.pdf Site Characterization Technologies for DNAPL Investigations September 2004; EPA 542-R ; in.org/download/char/542r04017.pdf u Understanding Procurement for Sampling and Analytical Services under a Triad Approach June 2005, EPA 542-R Understanding Procurement for Sampling and Analytical Services under a Triad Approach June 2005, EPA 542-R u Conducting Contamination Assessments at Drycleaning Sites EPA Technology Innovation Program; State Coalition for Remediation of Drycleaners Conducting Contamination Assessments at Drycleaning Sites EPA Technology Innovation Program; State Coalition for Remediation of Drycleaners u Using Dynamic Field Activities for On-Site Decision Making May 2003; OSWER No EPA/540/R03/002; Chapter 5, Using Dynamic Field Activities for On-Site Decision Making May 2003; OSWER No EPA/540/R03/002; Chapter 5,

State Guidance Featuring AQR Color-Tec ® D H E C u South Carolina Department of Health and Environmental Control; Field Inspection Guidance South Carolina Department of Health and Environmental Control; Field Inspection Guidance u North Carolina Dry-Cleaning Solvent Cleanup Program Guidance for Conducting Drycleaner Facility Prioritization Assessments North Carolina Dry-Cleaning Solvent Cleanup Program Guidance for Conducting Drycleaner Facility Prioritization Assessments u Colorado Department of Public Health and Environment Drycleaner Remediation Guidance Document Colorado Department of Public Health and Environment Drycleaner Remediation Guidance Document

EPA Triad Implementations Case Studies Using AQR Color-Tec ® u Best Practices in Triad Approach to Characterize TCE National Laboratory Environmental Sciences Division Argonne, IL Best Practices in Triad Approach to Characterize TCE National Laboratory Environmental Sciences Division Argonne, IL u Adaptations to Triad as a Basis for Exit Strategy Development Decision Logic Flow Chart 2006 Triad Poster Session; CH2MHill Adaptations to Triad as a Basis for Exit Strategy Development Decision Logic Flow Chart 2006 Triad Poster Session; CH2MHill u Successful Triad Implementations at Federal Sites AQR Color-Tec Method locates source areas at Calloway Drum Recycling Site, Auburndale, Florida Successful Triad Implementations at Federal Sites AQR Color-Tec Method locates source areas at Calloway Drum Recycling Site, Auburndale, Florida u Fast Track to Reducing Conceptual Site Model Uncertainty CH2MHill; Storage Tank Site ST-123 POL Fuel Yard Fast Track to Reducing Conceptual Site Model Uncertainty CH2MHill; Storage Tank Site ST-123 POL Fuel Yard u Using AQR Color-Tec for Source Identification and Delineation Naval Construction Battalion Center Davisville North Kingstown, RI Triad Conference Using AQR Color-Tec for Source Identification and Delineation Naval Construction Battalion Center Davisville North Kingstown, RI Triad Conference

AQR Color-Tec ® Featured On EPA CLU-IN Technology Page EPA CLU-IN web page provides information about treatment and characterization technologies. AQR Color-Tec is featured with other test kits in the technology descriptions and selection tools section EPA CLU-IN web page provides information about treatment and characterization technologies. AQR Color-Tec is featured with other test kits in the technology descriptions and selection tools section

Hardware Kit = $1, Sample Pack = $395 u Cost per sample is $19.95 (Basic QA/QC included) u Provided in 20-sample kits with all required expendables u Hardware kit includes piston pump, pump stand, heating equipment, and carrying case u Professional technical support is included with any purchase u Customized comprehensive training courses are available u Cost per sample is $19.95 (Basic QA/QC included) u Provided in 20-sample kits with all required expendables u Hardware kit includes piston pump, pump stand, heating equipment, and carrying case u Professional technical support is included with any purchase u Customized comprehensive training courses are available AQR Color-Tec ® Equipment and Expendables