Geographic and Operational Site Parameters List (GOSPL) for Hanford Assessments

Abstract

This data package was originally prepared to support a 2004 composite analysis (CA) of low-level waste disposal at the Hanford Site. The Technical Scope and Approach for the 2004 Composite Analysis of Low Level Waste Disposal at the Hanford Site (Kincaid et al. 2004) identified the requirements for that analysis and served as the basis for initial preparation of this data package. Completion of the 2004 CA was later deferred, with the 2004 Annual Status Report for the Composite Analysis of Low-Level Waste Disposal in the Central Plateau at the Hanford Site (DOE 2005) indicating that a comprehensive update to the CA was in preparation and would be submitted in 2006. However, the U.S. Department of Energy (DOE) has recently decided to further defer the CA update and will use the cumulative assessment currently under preparation for the environmental impact statement (EIS) being prepared for tank closure and other site decisions as the updated CA.

Vadose Zone–Attenuated Artificial Recharge for Input to a Ground Water Model

“… 216‐B‐3—a major surface pond complex located east of the 200 East Area (Figure 2) that received large discharges of cooling water and nonroutine process releases that resulted in the discharge of low‐level radioactive and chemically contaminated water over several decades for infiltration to ground water; about 166 million m 3 of water were disposed of in this complex during its operational period between April 1945 and May 1994. Monthly estimates were calculated (Last et al 2006b) to account for evaporation losses from this surface water body and are included in the calculation by reducing the net total recharge. 216‐B‐44—a crib located south of the 200 East Area that received 5600 m 3 of uranium recovery liquid process waste generated in the 200 East Area (Figure 2) that was neutralized and treated to remove cesium and strontium between November 1954 and March 1955. Cribs and trenches are below‐grade structures that were commonly used at Hanford during early operations to dispose of radioactive‐contaminated supernatant fluids from underground storage tanks directly to the vadose zone after a settling period because tank storage space was limited and demands on nuclear materials production were severe. 241‐SX‐108—a 3785‐m 3 capacity single‐shell underground storage tank in the 200 West Area (Figure 2) that received mixed radioactive wastes and fluids during the operational period of the Hanford Site.…”

Inventory Data Package for Hanford Assessments

“…The information needed to determine the inventory includes waste site locations, amounts or rates of discharge or disposal, concentrations of contaminants in waste or total activity in waste deposits, the change in inventory because of natural processes (e.g., decay), and the movement of inventories because of Hanford cleanup and disposal actions. The compilation of some of this information (e.g., location, cleanup schedule) resides in the Geographic and Operational Site Parameters List (GOSPL) workbook and is fully documented in the GOSPL data package (Last et al 2006). …”

A Demonstration of the System Assessment Capability (SAC) Rev. 1 Software for the Hanford Remediation Assessment Project

“…• Inventory data package (Kincaid et al 2006) • Geographic and operational site parameters (Last et al 2006b) • Atmospheric data package (Napier and Ramsdell 2005) • Vadose zone hydrology data package (Last et al 2006a) • Groundwater data package (Thorne et al 2006) • Ecological and human risk data package • Ecological characterization data (Downs et al 2004) • Release model data package (Riley and Lopresti 2006).…”