(Hosted elsewhere, but maintained by us.)


The Tratnyek Group Community on Zenodo is where we archive digital documents that deserve to be assigned a DOI. They are all open access, but please use the citation recommended on the download page. Most of documents that we deposit there are ancillary supporting information that go with our primary publications. Note that many of our primary publications also have official supporting information that can be found at the corresponding publisher websites.


The Tratnyek/Johnson Channel on YouTube is where we share video content derived from our work. Some of the videos we have uploaded, but most (e.g., webinars) are hosted by their respective sponsors, and we have linked them as playlists. Please ask permission if you want to re-use this material in anyway.


(Older online resources, now archived.)

Center for Groundwater Research (CGR)

The Oregon Graduate Institute's Center for Groundwater Research had a website at from 1995 to 2019. The site hosted a variety of resources derived from the research of Profs. Rick Johnson, Paul Tratnyek, and Jim Pankow. Several of these resources (IronRefs and IscoKin) are still accessible, as described below. Pankow's translation of Schwille's DNAPLs book also was moved to Zenodo (DOI: 10.5281/zenodo.3282856), where it should be available open-access indefinitely.

The main CGR project that does not currently have an online record is Rick Johnson's Large Experimental Aquifer Program (LEAP). It had a remarkable history that we will document here eventually.


IronRefs was a searchable online database of bibliographic data for publications on the use of zerovalent metals (ZVMs)—especially zerovalent iron (ZVI)—for remediation or treatment of contaminated environmental materials. When the CGR server was retired, we made the contents of the database available on Zenodo, where it now has this DOI: 10.5281/zenodo.3736665. More background on IronRefs can be found there.

IscoKin Database

IscoKin was a database of second-order rate constants for aqueous phase reaction of organic contaminants with the major oxidants involved in groundwater remediation by In Situ Chemical Oxidation (ISCO)—including permanganate, hydroxyl radical (from activated peroxide), and sulfate radical (from activated persulfate)—plus other comparable oxidants of environmental interest. When the CGR server was retired, we made the contents of the database available on Zenodo, where it now has this DOI: 10.5281/zenodo.3596102. More background on IscoKin can be found there.

Google Group

From 2009 to 2017, we used a Google Discussion Group as a way to distribute announcements of new publications to alumni of the research group, colleagues involved in collaboration with the group, and professionals interested in our work. You can still browse the old posts there, but the list is no longer active. We now use LinkedIn for occasional announcements directed mainly to the practitioner community.

Local Documents

(Public downloads from this site.)
  • PDF of Tratnyek, Paul G., 1996, Putting corrosion to use: Remediation of contaminated groundwater with zero-valent metals. Chemistry & Industry, 1 July (13), 499-503. (No DOI or online version is available from the publisher).