S2C2 Inc. utilizes EQuIS, RockWorks and ArcGIS implementing the Triad approach

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Courtesy of EarthSoft, Inc

When implementing the Triad Approach, S2C2 Inc. (S2C2) relies upon EarthSoft’s EQuIS,ESRI’s ArcGIS and Rockware’s RockWorks software toptimize the management andvisualization of large data sets. The USEPA’s Triad Approach incorporates the following threecomponents: systematic planning, real-time measurements and dynamic work strategies. Theprimary goal of this approach is tstreamline site characterization, provide more accurateconceptual models of contaminant distribution tpermit more accurate and effective remedyselection. Successful implementation of Triad and other similar streamlined site characterizationmethodologies should consider the following:
  • Contaminated sites are viewed as heterogeneous.
  • For systematic planning, the Conceptual Site Model (CSM) provides thefoundation for decision making. It includes identifying project decisionsand end points, structuring an interactive project life cycle and clearlyarticulating project decision statements.
  • Real-time measurements are utilized and include: field screening,geophysical techniques, direct-sensing technologies, on-site analyticalmethods and/or rapid turn-around of conventional analytical methods thatcan be used in conjunction with each other tprovide collaborative datasets.
  • Accurate Conceptual Site Models (CSM) are the basis for real-time, onsitedecisions and require continuous adaptation as more information isobtained in the field.
  • Dynamic Work Strategies typically utilizing adaptive sampling procedures allow for realtimedecisions based on data generated in the field. These strategies require a focusedapproach employing logic and clearly articulated decision rules tcontinuously updatethe CSM.
  • Adapt field communications and data management strategies are necessary tefficientlyorganize, display and present large and complex data sets.

S2C2 works closely with consultants tidentify project-specific objectives as well as tselectand combine different data collection methods in order tprovide real-time measurementtechnologies that are appropriate for the site. Hard taccess terrain, geographically diverselocations and time-cost pressures require experience, quick decisions, innovation, and the righttools. These tasks require better tools tplan activities, collect data, establish acceptable quality controls and improve data analysis and presentation, and include, but are not limited to, the following:

  • Direct-Push Sampling Platforms – Includes both track-mounted and truck-mountedrigs with auger capabilities which allow for rapid and precise environmental (e.g. soil,groundwater, soil vapor) sampling.
  • Direct-Sensing Technologies – Technologies that include:
  1. Fuel Fluorescent Detector (FFD) combined with Cone PenetrometerTechnology (CPT) tdetect aromatic hydrocarbons and simultaneouslygenerate a read-out of the lithology. Continuous, real-time data readoutsallow for rapid delineation of LNAPLs in the subsurface.
  2. Membrane Interface Probes (MIP) simultaneously defines lithology and totalVOCs.
  3. Conductivity Probes – provide accurate and detailed lithologic information ina cost effective manner.
  • On-Site Analytical Capabilities – Provides onsite analysis of compound specificcontaminant suites including: VOCs, SVOCs, PCBs, Pesticides, TPH, and metals.
  • Database management and data visualization using EQuIS, Rockworks and ArcGIS.
  • Field personnel experienced with technologies, equipment, and the Triad Approach toassist with the successful implementation of a streamlined site characterization program.

Managing and visualizing large data sets that are typically associated with Triad programs is aperfect match with EQuIS since it requires well-organized data combined with a powerfulretrieval system, which are key EQuIS features. S2C2 uses EQuIS as the backbone of its dataprocessing engine for management and visualization of data sets as well as for developing andcontinuously updating CSMs that are delivered to stakeholders in ArcGIS, a commonGeographical Information System (GIS). All types of field data (i.e., direct-sensing data, GPSdata, analytical laboratory data, etc.) are directly exported in electronic data deliverables (EDDs)and uploaded into the EQuIS database where the data can be delivered to a number of third partysoftware packages including: Rockware’s LogPlot and RockWorks and ESRI’s ArcGIS and 3DAnalyst.

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