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April 10, 2021
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Event Details

To register for this event, click the Register Now button at the bottom of this page

General Information
Event Name: Monthly Engineering Forum Virtual Training
Topic: Groundwater Remediation at the Hanford Site
Hosted By: U.S. EPA
Office of Superfund Remediation and Technology Innovation
Event Description:

The Engineering Forum (EF), established in the late 1980s, is a group of engineers and scientists that supports the Superfund and RCRA programs in each of the ten EPA Regional Offices. As one of the EPA Technical Support Project’s (TSP) three technical forums, the EF is a medium for exchanging technical information regarding innovative site cleanup and characterization technologies. Monthly technical talks focus on site-specific engineering problems encountered, alternatives and solutions, and lessons learned. After each presentation, information regarding upcoming events and training are discussed and time for an Open Mic discussion is provided. If you are a Superfund, Resource Conservation and Recovery Act (RCRA), Brownfields, state or federal environmental professional who is interested in solving technical issues, register for any technical talks listed below that interest you and join the discussion!

Presentations are specifically designed for EPA staff including RPMs, OSCs, Corrective Action Managers, Superfund and Technology Liaisons, Chemists, Biologists, Physical Scientists, and Engineers from within EPA regions, program offices, laboratory system, and headquarters personnel as well as environmental professionals from state agencies, the U.S. Army Corps of Engineers, U.S. Dept. of Energy, and other federal agencies of all experience levels. THIS TRAINING IS NOT OPEN TO ACADEMIA, CONTRACTORS, CONSULTANTS OR OTHER PRIVATE ENTITIES.

We will try to meet any special accommodations necessary for our participants as possible if given a minumum of two weeks notice. You will be prompted to indicate if you need any special accommocations upon registering for these events.

*This training is offered free of charge to all registrants who are confirmed to attend. One CLP will be issued for each session attended when you register and log on with the registration link provided to enable your attendance to be confirmed.*
 

Additional Information:

Emerald Laija from the Federal Facilities Restoration and Reuse Office will discuss groundwater remediation at the central portion of the Hanford Site located in south-eastern Washington state. The presentation will provide a brief overview of the remedies for two groundwater operable units (OUs), the 200 West pump-and-treat (P&T) facility, and an optimization study being conducted for these remedies.

The 200 West P&T facility and associated well network is one of the key components of the final remedy selected for the 200-ZP-1 OU (2009) and the 200-UP-1 OU interim remedial action (2012). The selected remedy for both the 200-ZP-1 and 200-UP-1 OUs is a combination of P&T, monitored natural attenuation (MNA), flow-path control, and institutional controls (ICs). The 200-ZP-1 OU COCs include carbon tetrachloride, total chromium, hexavalent chromium (Cr(VI)), nitrate, trichloroethene (TCE), iodine-129, technetium-99, and tritium. The 200-UP-1 OU also has uranium. The 200-ZP-1 OU includes several groundwater contaminant plumes collectively covering an area of approximately 18 km2 (7 mi2). The major waste streams that contributed to groundwater contamination were associated with plutonium-finishing operations. The sediment thickness in the area above the water table ranges from 40 to 75 m (132 to 246 ft).

The 200 West P&T facility was originally designed with a capacity to treat 2,500 gallons per minute (gpm) of extracted groundwater using two treatment trains - one for radionuclides and the other for biological treatment. Biological treatment included use of fluidized bed reactors (FBRs), membrane bioreactors (MBRs), and air strippers. An optimization study is being conducted during the operations and maintenance (O&M) phase to suspend biological treatment using the FBRs and MBRs while adding an additional air stripper to increase the 200 West P&T capacity to approximately 14,200 L/min (3,750 gal/min).

__________________________

Times listed are Eastern.

Registration Status: Registration Open
Event Begins: May 05, 2021 at 12:30 PM
Event Ends: May 05, 2021 at 2:00 PM
For questions about this event, please contact: Deborah Cox
E-mail: cox.deborah@epa.gov
Location
This event will be held at: Internet Based
Live Online Class, Internet Based

You will receive the link to connect to this training in the registration receipt email you will receive immediately upon registering for this training.

   
   
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