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USGS IN YOUR STATE

USGS Water Science Centers are located in each state.

South Carolina Water Science Center Publications:
Diffusion Samplers as an Inexpensive Approach to Monitoring VOCs in Ground Water

Visit the USGS Publications Warehouse to find online versions of publications listed below. Use the publication series number in the Warehouse search form.

Diffusion Samplers as an Inexpensive Approach to Monitoring VOCs in Ground Water

Don A. Vroblesky and W. Thomas Hyde

Abstract

Diffusion samplers installed in observation wells were found to be capable of yielding representative water samples for chlorinated volatile organic compounds. The samplers consisted of polyethylene bags containing deionized water and relied on diffusion of chlorinated volatile organic compounds through the polyethylene membrane. The known ability of polyethylene to transmit other volatile compounds, such as benzene and toluene, indicates that the samplers can be used for a variety of volatile organic compounds. In wells at the study area, the volatile organic compound concentrations in water samples obtained using the samplers without prior purging were similar to concentrations in water samples obtained from the respective wells using traditional purging and sampling approaches. The low cost associated with this approach makes it a viable option for monitoring large observation-well networks for volatile organic compounds.

--- Summer 1997 GWMR

Passive Diffusion Bag Samplers

Water-Resources Investigation Report 01-4060: User's Guide, Part 1 (25 Pages) format PDF
Water-Resources Investigation Report 01-4061: User's Guide, Part 2 (102 Pages) format PDF

Vendor Contacts:

• Columbia Analytical Services: On-line at caslab.com
  Phone: 1-800-695-7222

• Eon Products: On-line at eonpro.com
  Phone: 1-800-474-2490

License Contacts:

• PDB samplers employ patented technology (U.S. patent number 5,804,743), the user is required to purchase commercially produced samplers from a licensed manufacturer or purchase a nonexclusive license for sampler construction from the U.S. Geological Survey Technology Enterprise Office at:
  U. S. Geological Survey Technology Transfer Enterprise Office
  Mail Stop 211, National Center
  12201 Sunrise Valley Drive
  Reston, Virginia 20192
  Phone: 703-648-4403
  Fax: 703-648-4408

Internet Training Materials: On-line at Interstate Technology and Regulatory Cooperation

Passive Vapor Diffusion Samplers - (Reports not available at this time)

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