|                                                                                                                                                                                                                                                     | spacer                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | United States Environmental Protection AgencyPassive Diffusion Bag Samplers for Volatile Organic Compounds in Ground Water Sponsored by: Interstate Technology and Regulatory CouncilOriginal Time/Date of Presentation: 
				  March 26, 2002, 2:00 PM - 4:00 PM, EST (19:00-21:00 GMT)Presentation Overview: 
				  Passive diffusion bag (PDB) samplers are a simple and inexpensive way to sample ground water monitoring wells for a variety of volatile organic compounds.  A typical PDB sampler consists of low-density polyethylene lay-flat tubing that is filled with distilled, deionized water and heat sealed at both ends.  The bags are suspended in the monitoring well at the target horizon by a weighted line and allowed to equilibrate with the surrounding water (typically 2-weeks).  The PDB samplers are retrieved from the well after the equilibration period and the enclosed water is immediately transferred to appropriate sample containers for analysis [40 ml VOC vials].  Field-tests show good correlation between samples obtained with PDB samplers and samples obtained using traditional methods (i.e. purge 3-5 casing volumes and sample with a bailer). Currently, the samplers are recommended only for long-term ground water monitoring of VOCs at well-characterized sites.  The number of sites where they can be appropriately deployed is large and the associated cost savings are significant.
The ITRC internet training for this technology will discuss the technical and regulatory considerations associated with deployment of diffusion samplers, and summarize major points of the recently issued USGS document “Users Guide For Polyethylene-Based Passive Diffusion Bag Samplers To Obtain Volatile Organic Compound Concentrations In Wells,” which was developed in cooperation with the ITRC Diffusion Sampler Work Group.Presenters: 
				  Instructors:
				  George H. Nicholas, NJ Dept. of Environmental Protection
					 (George.Nicholas@dep.state.nj.us)
					 
				  Don A. Vroblesky, US Geological Survey
 (vroblesk@usgs.gov)Moderators:
					 
					 Mary Yelken, ITRC Training Program Support (myelken@earthlink.net)Press the "Go to Training" button to view the
					 seminar. Please be at this location at the beginning of the conference
					 call.Download Seminar For Future Reference 
				  The seminar is available for download in
					 three different formats, including Microsoft PowerPoint, full color Adobe
					 Acrobat, and black and white Adobe Acrobat. All formats include the
					 instructor's notes.After the seminar is complete, please
					 view:Links to Additional
							 Resources | Passive Diffusion Bag Samplers for Volatile Organic Compounds in Ground Water Sponsored by: Interstate Technology and Regulatory Council | Original Time/Date of Presentation: | March 26, 2002, 2:00 PM - 4:00 PM, EST (19:00-21:00 GMT) | Presentation Overview: | Passive diffusion bag (PDB) samplers are a simple and inexpensive way to sample ground water monitoring wells for a variety of volatile organic compounds.  A typical PDB sampler consists of low-density polyethylene lay-flat tubing that is filled with distilled, deionized water and heat sealed at both ends.  The bags are suspended in the monitoring well at the target horizon by a weighted line and allowed to equilibrate with the surrounding water (typically 2-weeks).  The PDB samplers are retrieved from the well after the equilibration period and the enclosed water is immediately transferred to appropriate sample containers for analysis [40 ml VOC vials].  Field-tests show good correlation between samples obtained with PDB samplers and samples obtained using traditional methods (i.e. purge 3-5 casing volumes and sample with a bailer). Currently, the samplers are recommended only for long-term ground water monitoring of VOCs at well-characterized sites.  The number of sites where they can be appropriately deployed is large and the associated cost savings are significant.
The ITRC internet training for this technology will discuss the technical and regulatory considerations associated with deployment of diffusion samplers, and summarize major points of the recently issued USGS document “Users Guide For Polyethylene-Based Passive Diffusion Bag Samplers To Obtain Volatile Organic Compound Concentrations In Wells,” which was developed in cooperation with the ITRC Diffusion Sampler Work Group. | Presenters: | Instructors:
				  George H. Nicholas, NJ Dept. of Environmental Protection
					 (George.Nicholas@dep.state.nj.us)
					 
				  Don A. Vroblesky, US Geological Survey
 (vroblesk@usgs.gov)Moderators:
					 
					 Mary Yelken, ITRC Training Program Support (myelken@earthlink.net) |  | Press the "Go to Training" button to view the
					 seminar. Please be at this location at the beginning of the conference
					 call. | Download Seminar For Future Reference | The seminar is available for download in
					 three different formats, including Microsoft PowerPoint, full color Adobe
					 Acrobat, and black and white Adobe Acrobat. All formats include the
					 instructor's notes. | After the seminar is complete, please
					 view: | Links to Additional
							 Resources | Links to Additional
							 Resources
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------- | -------------------------------------------------------- | ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------- | -------------------------------------- | --------------------------------------
|Passive Diffusion Bag Samplers for Volatile Organic Compounds in Ground Water Sponsored by: Interstate Technology and Regulatory Council                                                                                                            
|Original Time/Date of Presentation:                                                                                                                                                                                                                  | March 26, 2002, 2:00 PM - 4:00 PM, EST (19:00-21:00 GMT)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Presentation Overview:                                                                                                                                                                                                                               | Passive diffusion bag (PDB) samplers are a simple and inexpensive way to sample ground water monitoring wells for a variety of volatile organic compounds.  A typical PDB sampler consists of low-density polyethylene lay-flat tubing that is filled with distilled, deionized water and heat sealed at both ends.  The bags are suspended in the monitoring well at the target horizon by a weighted line and allowed to equilibrate with the surrounding water (typically 2-weeks).  The PDB samplers are retrieved from the well after the equilibration period and the enclosed water is immediately transferred to appropriate sample containers for analysis [40 ml VOC vials].  Field-tests show good correlation between samples obtained with PDB samplers and samples obtained using traditional methods (i.e. purge 3-5 casing volumes and sample with a bailer). Currently, the samplers are recommended only for long-term ground water monitoring of VOCs at well-characterized sites.  The number of sites where they can be appropriately deployed is large and the associated cost savings are significant.
The ITRC internet training for this technology will discuss the technical and regulatory considerations associated with deployment of diffusion samplers, and summarize major points of the recently issued USGS document “Users Guide For Polyethylene-Based Passive Diffusion Bag Samplers To Obtain Volatile Organic Compound Concentrations In Wells,” which was developed in cooperation with the ITRC Diffusion Sampler Work Group.
|Presenters:                                                                                                                                                                                                                                          | Instructors:
				  George H. Nicholas, NJ Dept. of Environmental Protection
					 (George.Nicholas@dep.state.nj.us)
					 
				  Don A. Vroblesky, US Geological Survey
 (vroblesk@usgs.gov)Moderators:
					 
					 Mary Yelken, ITRC Training Program Support (myelken@earthlink.net)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                     | Press the "Go to Training" button to view the
					 seminar. Please be at this location at the beginning of the conference
					 call.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Download Seminar For Future Reference                                                                                                                                                                                                                | The seminar is available for download in
					 three different formats, including Microsoft PowerPoint, full color Adobe
					 Acrobat, and black and white Adobe Acrobat. All formats include the
					 instructor's notes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|After the seminar is complete, please
					 view:                                                                                                                                                                                                  
|Links to Additional
							 Resources                                                                                                                                                                                                               | Links to Additional
							 Resources                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Links to Additional
							 Resources                                                                                                                                                                                                              
|
|
|
|blue bar 
	Produced by the U.S. EPA, Technology Innovation and Field Services DivisionQuestions about our Internet Seminars? | Technical problems?Rehabilitation Act Notice for Reasonable Accommodation, Webinar Recording, and Content Disclaimer
|
|                                                                                                                                                                                                                                                     |