the conceptual site model
DESCRIPTION
The Conceptual Site Model. Kyle Newman VDEQ. What Is It?. A description of hypothesized relationships between sources, the environment, and receptors. What has happened What is happening What will happen. Example Conceptual Site Model. Figure of Conceptual Site Model. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/1.jpg)
The Conceptual Site Model
Kyle NewmanVDEQ
![Page 2: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/2.jpg)
What Is It?A description of hypothesized
relationships between sources, the environment, and receptors
•What has happened• What is happening• What will happen
![Page 3: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/3.jpg)
Example Conceptual Site Model
![Page 4: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/4.jpg)
Figure of Conceptual Site Model
![Page 5: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/5.jpg)
Vapor Intrusion Conceptual Model
IRTC, 2007
![Page 6: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/6.jpg)
![Page 7: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/7.jpg)
Why Create a Formal CSM?• Helps plan site investigations• Provides context for site• Helps evaluate efficacy of
investigation• Allows reviewers to evaluate
the “same” site
![Page 8: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/8.jpg)
CSM and Project Planning• Should be created before site investigation
(“Problem Formulation”)• Identification of data gaps- Phase I and UST needs vs. VRP SCR and Risk Assessment needs• Complete CSM will help determine type,
location, and number of samples required• Account for VRP Risk Assessment assumptions
![Page 9: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/9.jpg)
What Makes a “Good” CSM?
• Site history full documented• Locations and types of potential releases
identified• Fate and transport of environmental
contaminants examined• All Potential current and future receptors
identified• Iterative- CSM changes as data are collected
![Page 10: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/10.jpg)
Presentation
• Useful as separate section in SCR• Provide as a narrative• Figures helpful
![Page 11: The Conceptual Site Model](https://reader034.vdocument.in/reader034/viewer/2022051116/568156f5550346895dc49ba5/html5/thumbnails/11.jpg)
Questions?