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open access

100-NR-2 Apatite Treatability Test: High-Concentration Calcium-Citrate-Phosphate Solution Injection for In Situ Strontium-90 Immobilization

Description: Following an evaluation of potential strontium-90 (90Sr) treatment technologies and their applicability under 100-NR-2 hydrogeologic conditions, the U.S. Department of Energy (DOE), Fluor Hanford, Inc. (now CH2M Hill Plateau Remediation Company [CHPRC]), Pacific Northwest National Laboratory, and the Washington State Department of Ecology agreed that the long-term strategy for groundwater remediation at the 100-N Area should include apatite as the primary treatment technology. This agreement wa… more
Date: September 1, 2010
Creator: Vermeul, Vincent R.; Fritz, Brad G.; Fruchter, Jonathan S.; Szecsody, James E. & Williams, Mark D.
open access

200-BP-1 Prototype Hanford Barrier -- 15 Years of Performance Monitoring

Description: Monitoring is an essential component of engineered barrier system design and operation. A composite capacitive cover, including a capillary break and an evapotranspiration (ET) barrier at the Hanford Site, is generating data that can be used to help resolve these issues. The prototype Hanford barrier was constructed over the 216-B-57 Crib in 1994 to evaluate surface-barrier constructability, construction costs, and physical and hydrologic performance at the field scale. The barrier has been rou… more
Date: September 30, 2011
Creator: Ward, Anderson L.; Draper, Kathryn E.; Link, Steven O. & Clayton, Ray E.
open access

200-DV-1OU Sediment and Pore Water Analysis and Report for Samples at Borehole C8096

Description: This is an analytical data report for sediment samples received at 200-DV-1 OU. On August 30, 2011 sediment samples were received from 200-DV-1 OU Borehole C8096 for geochemical studies. The analyses for this project were performed at the 331 building located in the 300 Area of the Hanford Site. The analyses were performed according to Pacific Northwest National Laboratory (PNNL) approved procedures and/or nationally recognized test procedures. The data sets include the sample identification nu… more
Date: October 1, 2011
Creator: Lindberg, Michael J.
open access

A 200 MHz 35 MW Multiple Beam Klystron for Accelerator Applications Final Report

Description: Calabazas Creek Research, Inc. (CCR) performed initial development of a compact and reliable 35 MW, multiple beam klystron (MBK) at 200 MHz with a pulse length of 0.125 ms and a 30 Hz repetition rate. The device was targeted for acceleration and ionization cooling of a muon collider, but there are several other potential applications in this frequency range. The klystron uses multiple beams propagating in individual beam tunnels to reduce space charge and allow reduction in the accelerating vol… more
Date: November 28, 2011
Creator: Ives, R. Lawrence; Read, Michael; Ferguson, Patrick & Marsden, David
open access

241-AW Tank Farm Construction Extent of Condition Review for Tank Integrity

Description: This report provides the results of an extent of condition construction history review for the 241-AW tank farm. The construction history of the 241-AW tank farm has been reviewed to identify issues similar to those experienced during tank AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank AY-102 as the comparison benchmark. In the 241-AW tank farm, the fourth double-shell tank farm constructed,… more
Date: November 19, 2013
Creator: Barnes, Travis J.; Gunter, Jason R. & Reeploeg, Gretchen E.
open access

241-AY-101 Tank Construction Extent of Condition Review for Tank Integrity

Description: This report provides the results of an extent of condition construction history review for tank 241-AY-101. The construction history of tank 241-AY-101 has been reviewed to identify issues similar to those experienced during tank AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank AY-102 as the comparison benchmark. In tank 241-AY-101, the second double-shell tank constructed, similar issues as t… more
Date: August 26, 2013
Creator: Barnes, Travis J. & Gunter, Jason R.
open access

241-AY-102 Leak Detection Pit Drain Line Inspection Report

Description: This document provides a description of the design components, operational approach, and results from the Tank AY-102 leak detection pit drain piping visual inspection. To perform this inspection a custom robotic crawler with a deployment device was designed, built, and operated by IHI Southwest Technologies, Inc. for WRPS to inspect the 6-inch leak detection pit drain line.
Date: January 20, 2014
Creator: Boomer, Kayle D.; Engeman, Jason K.; Gunter, Jason R.; Joslyn, Cameron C.; Vazquez, Brandon J.; Venetz, Theodore J. et al.
open access

241-AZ Farm Annulus Extent of Condition Baseline Inspection

Description: This report provides the results of the comprehensive annulus visual inspection for tanks 241- AZ-101 and 241-AZ-102 performed in fiscal year 2013. The inspection established a baseline covering about 95 percent of the annulus floor for comparison with future inspections. Any changes in the condition are also included in this document.
Date: May 15, 2013
Creator: Engeman, Jason K.; Girardot, Crystal L. & Vazquez, Brandon J.
open access

241-AZ Tank Farm Construction Extent of Condition Review for Tank Integrity

Description: This report provides the results of an extent of condition construction history review for tanks 241-AZ-101 and 241-AZ-102. The construction history of the 241-AZ tank farm has been reviewed to identify issues similar to those experienced during tank AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank AY-102 as the comparison benchmark. In the 241-AZ tank farm, the second DST farm constructed, bo… more
Date: July 30, 2013
Creator: Barnes, Travis J.; Boomer, Kayle D.; Gunter, Jason R. & Venetz, Theodore J.
open access

241-SY Tank Farm Construction Extent of Condition Review for Tank Integrity

Description: This report provides the results of an extent of condition construction history review for tanks 241-SY-101, 241-SY-102, and 241-SY-103. The construction history of the 241-SY tank farm has been reviewed to identify issues similar to those experienced during tank 241-AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank 241-AY-102 as the comparison benchmark. In the 241-SY tank farm, the third DST … more
Date: July 25, 2013
Creator: Barnes, Travis J.; Boomer, Kayle D.; Gunter, Jason R. & Venetz, Theodore J.
open access

300 Area D4 Project Fiscal Year 2009 Building Completion Report

Description: This report summarizes the deactivation, decontamination, decommissioning, and demolition activities of seven facilities in the 300 Area of the Hanford Site in fiscal year 2009. The D4 of these facilities included characterization; engineering; removal of hazardous and radiologically contaminated materials; equipment removal; utility disconnection; deactivation, decontamination, demolition of the structure; and stabilization or removal of slabs and foundations. This report also summarizes the n… more
Date: January 27, 2010
Creator: Skwarek, B. J.
open access

317/319 Phytoremediation site monitoring report - 2009 growing season : final report.

Description: In 1999, Argonne National Laboratory (Argonne) designed and installed a series of engineered plantings consisting of a vegetative cover system and approximately 800 hybrid poplars and willows rooting at various predetermined depths. The plants were installed using various methods including Applied Natural Science's TreeWell{reg_sign} system. The goal of the installation was to protect downgradient surface and groundwater by intercepting the contaminated groundwater with the tree roots, removing… more
Date: February 10, 2010
Creator: Negri, C .N.; Benda, P. L.; Gopalakrishnan, G. & Systems, Energy
open access

324 Building Baseline Radiological Characterization

Description: This report documents the analysis of radiological data collected as part of the characterization study performed in 1998. The study was performed to create a baseline of the radiological conditions in the 324 Building.
Date: June 24, 2010
Creator: R.J. Reeder, J.C. Cooper
open access

L-325 Sagebrush Habitat Mitigation Project: Final Compensation Area Monitoring Report

Description: This document provides a review and status of activities conducted in support of the Fluor Daniel Hanford Company (Fluor), now Mission Support Alliance (MSA), Mitigation Action Plan (MAP) for Project L-325, Electrical Utility Upgrades (2007). Three plantings have been installed on a 4.5-hectare mitigation area to date. This review provides a description and chronology of events, monitoring results, and mitigative actions through fiscal year (FY) 2012. Also provided is a review of the monitoring… more
Date: September 26, 2013
Creator: Durham, Robin E. & Becker, James M.
open access

A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report

Description: This program developed a 200 kW CW, 350 MHz, multiple beam inductive output tube (MBIOT) for driving accelerator cavities. The MBIOT operates at 30 kV with a gain of 23 dB. The estimated efficiency is 70%. The device uses seven electron beams, each transmitting 1.4 A of current. The tube is approximately six feet long and weighs approximately 400 lbs. The prototype device will be evaluated as a potential RF source for the Advanced Photon Source at Argonne National Laboratory (ANL). Because of i… more
Date: November 28, 2012
Creator: Ives, R. Lawrece; Collins, George; Read, David Marsden Michael; Eisen, Edward & Takuchi Kamura, Philipp Borchard
open access

401(k) Plans and Retirement Savings: Issues for Congress

Description: From Summary: "This report describes seven major policy issues with respect to defined contribution plans include: 1. access to employer-sponsored retirement plans; 2. participation in employer-sponsored plans; 3. contribution rates; 4. investment choices; 5. fee disclosure; 6. leakage from retirement savings; converting retirement savings into income."
Date: January 7, 2011
Creator: Topoleski, John J.
open access

401(K) Plans: Certain Investment Options and Practices That May Restrict Withdrawals Not Widely Understood

Description: A letter report issued by the Government Accountability Office with an abstract that begins "401(k) plan sponsors are responsible for offering an array of appropriate investment options, and participants are responsible for directing their investments among those options. While participants expect to be able to switch investment options or withdraw money from their accounts, during the recent economic downturn, some 401(k) plan sponsors and participants found that they were restricted from doin… more
Date: March 10, 2011
Creator: United States. Government Accountability Office.
open access

401(K) Plans: Improved Regulation Could Better Protect Participants from Conflicts of Interest

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Recent volatility in financial markets highlights the need for prudent investment decisions if 401(k) plans are to provide an adequate source of retirement income. While plan sponsors and participants may receive help in assessing their investment choices, concerns have been raised about the impartiality of the advice provided. GAO was asked to describe circumstances where service providers may have con… more
Date: January 28, 2011
Creator: United States. Government Accountability Office.
open access

401(k) Plans: Increased Educational Outreach and Broader Oversight May Help Reduce Plan Fees

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Plan sponsors and participants paid a range of fees for services, though smaller plans typically paid higher fees as a percentage of plan assets. For example, the average amount sponsors of small plans reported paying for recordkeeping and administrative services was 1.33 percent of assets annually, compared with 0.15 percent paid by sponsors of large plans. Larger plans were more likely to pass recordk… more
Date: April 24, 2012
Creator: United States. Government Accountability Office.
open access

401(K) Plans: Labor and IRS Could Improve the Rollover Process for Participants

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The current rollover process favors distributions to individual retirement accounts (IRA). Waiting periods to roll into a new employer plan, complex verification procedures to ensure savings are tax-qualified, wide divergences in plans' paperwork, and inefficient practices for processing rollovers make IRA rollovers an easier and faster choice, especially given that IRA providers often offer assistance … more
Date: March 7, 2013
Creator: United States. Government Accountability Office.
open access

401(k) Plans: Other Countries' Experiences Offer Lessons in Policies and Oversight of Spend-down Options

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The six countries GAO reviewed can offer U.S. regulators lessons on how to expand access to a mix of spend-down options for 401(k) participants that meet various retirement needs. Five of the six countries generally ensure that participants can choose among three main plan options: a lump sum payment, a programmed withdrawal of participants' savings, or an annuity. In the last several decades, all the c… more
Date: November 20, 2013
Creator: United States. Government Accountability Office.
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