Client Testimonial: Washington Superfund Site

“Due to a combination of subsurface conditions and the limitations of pump and treat technology, our Washington Superfund client needed an in situ remedy to address recalcitrant Cr(VI) and TCE contamination in groundwater. Concentrations of Cr(VI) and TCE in the hot spot area were approximately 200 ppb and 8 ppb respectively. EA evaluated a number of products capable of addressing these commingled contaminants, and chose Adventus Group’s EHC-M because it supports both chemical and biological reduction processes, resulting in greater longevity over other products due to the ZVI component. EHC-M was applied using direct push injection at depths of 80 to 90 feet below the surface and, within 3 months of the application, Cr(VI) and TCE concentrations were below detection limits.”

—Eric Marhofer, Project Manager, EA Engineering, Science, and Technology, Inc.

EHC-M^® is specially formulated metal remediation compound for in situ immobilization of soluble metals via enhanced precipitation and adsorption. The controlled-release feature of the carbon provides for extended longevity and greatly assists in maintaining very low redox conditions through simultaneous microbial consumption of the carbon and electron acceptors. Arsenic, for example, is precipitated through the production of iron arsenic sulphide minerals that are practically insoluble in groundwater.

• EHC-M^® Comparative Analysis by Shaw Environmental
• EHC-M^® Mechanisms
• EHC-M^® for Arsenic
• EHC-M^® Case Study
• EHC-M^® Baseline Sampling

Please complete this form.
Note that default values are shown for some parameters. Please change any values for which you have an estimate.

*Mandatory items

Prefix
First Name *
Last Name *
Title
Company
Address
City
State/Province
Zip Code/Postal Code
Country
E-Mail *
Telephone
Fax
Site Details
Street Address
City
State/Province
ZIP Code/Postal Code
Country
Site Description: Historical Use Buildings: Source of Contamination Current Remediation Activities Etc.
Note: Please Attach - Site maps, containing water table data, contaminant data, and any other maps available.
Unit type for values *	------Please Select------ Metric Imperial
Site Geology
Description of top geologic unit General Thickness (?)
Description of 2nd geologic unit General Thickness (?)
Description of 3rd geologic unit General Thickness (?)
Description of 4th geologic unit General Thickness (?)
Contaminated Aquifer Characteristics for more than one unit, attach characteristics
Hydraulic Gradient (?/?)
Hydraulic Conductivity (?/day)
Soil Dry Bulk Density (lbs/ft3)
Total Porosity (between 0 and 1)
Effective Porosity (between 0 and 1)
Linear Groundwater Velocity (?/?)
Which geologic unit is it?
Note: Please Attach - All lithologic logs and construction logs of monitoring wells in plume area if available.
Geochemistry
List available geochemical data in below table:
Geochemical Parameter Typical Minimum Maximum Redox Potential (mV) pH Total Organic Carbon (mg/L) Dissolved Oxygen (mg/L) Total Manganese (mg/L) Dissolved Manganese (mg/L) Nitrate (mg/L) Nitrite (mg/L) Total Iron (mg/L) Dissolved Iron (mg/L) Sulfate (mg/L) Sulfide (mg/L)
Aim of Remediation
In the sections below, please select the type of remediation requested and provide data for that section.
Source Zone
Is source zone remediation requested?	------Please Select------ Yes No
Width of Source Zone (?)
Length of Source Zone (?)
Depth to Top of Source Zone (?)
Thickness of Source Zone (?)
Depth to Water Table (?)
Depth to Bedrock if applicable (?)
Is there pure phase product on site? If so, which constituents?	No
List primary constituents of concern with concentrations measured in source zone in below table:
Constituent of Concern Maximum Conc. (μg/L) Average Conc. (μg/L) Remedial Target (μg/L)
Total Plume Clean-up
Is total plume clean-up requested?	------Please Select------ Yes No
Width of Plume (?)
Length of Plume (?)
Depth to Top of Plume (?)
Thickness of Plume (?)
Depth to Water Table (?)
Constituent of Concern Maximum Conc. (μg/L) Average Conc. (μg/L) Remedial Target (μg/L)
Plume Containment / Permeable Reactive Barrier (PRB)
Is a PRB requested?	------Please Select------ Yes No
PRB Length (?)
Depth to Top of Plume (?)
Thickness of Plume (?)
Depth to Water Table (?)
Constituent of Concern Maximum Conc. (μg/L) Average Conc. (μg/L) Remedial Target (μg/L)
Other
How did you hear about us?	------Please Select------ Referral Internet Search Advertisement Trade Show/Conference Other
Please specify if possible
Is there a particular Adventus professional this is intended for?
Upload compressed file containing attachments (10 MB Max File Size)
Image Verification Please enter the text from the left image.  [ Refresh Image ] Demo Version - Characters are case sensitive.