Calendar Year 2001 Annual Summary Report for the 100-HR-3 100-KR-4 and 100-NR-2 Operable Unit Pump and Treat Operations
This annual progress and performance evaluation report discusses the groundwater remedial actions in the 100 Areas, including the interim remedial actions at the 100-HR-3, 100-KR-4, and 100-NR-2 Operable Units (OUs). Pump-and-treat systems using an ion-exchange medium for contaminant removal were selected as the 100-HR-3 and 100-KR-4 OU interim remedial actions and as the expedited response action for the 100-NR-2 OU. The systems were designed to achieve the remedial action objectives (RAOs) as well as specific operational and aquifer performance criteria described in the interim remedial action Record of Decision for the 100-HR-3 and 100-KR-4 Operable Units at the Hanford Site Interim Remedial Actions (EPA 1996) and the Interim Remedial Action Record of Decision for the 100-NR-1 and 100-NR-2 Operable Units, Hanford Site, Benton County, Washington (EPA 1999b). In calendar year (CY) 2000, the U.S. Environmental Protection Agency (EPA) initiated a review of remedial actions at the Hanford Site in accordance with Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) requirements. Several key items from the EPA 5-year review were directed specifically toward the 100 Area pump-and-treat operations (100-HR-3, 100-KR-4, and 100-NR-2), as follows: (1) To run more reliably and achieve the required cleanup levels, system enhancements to the 100-HR-3 and 100-KR-4 groundwater pump-and-treat systems must be optimized and completed. (2) The overall operational time of the system must improve. (3) The downtime for individual wells must be dramatically reduced. (4) A much higher percentage of the targeted plume must be captured. (5) Alternative remedial action technologies for the removal, waste reduction, and/or attenuation of strontium-90 from the aquifer sediments in the 100-NR-2 OU and to further reduce the net flux of strontium-90 to the river must be investigated.
- Research Organization:
- Fluor Hanford, Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM) (US)
- DOE Contract Number:
- AC06-96RL13200
- OSTI ID:
- 808269
- Report Number(s):
- DOE/RL-2002-05, Rev.0; DOE/RL-2002-005-0DX; TRN: US200307%%74
- Resource Relation:
- Other Information: PBD: 20 Sep 2002
- Country of Publication:
- United States
- Language:
- English
Similar Records
Annual Summary Report, February to December 1998, for the100-HR-3 and 100-KR-4 Pump-and-Treat Operations and Operable Units
Systematic Method for Evaluating Extraction and Injection Flow Rates for 100-KR-4 and 100-HR-3 Groundwater Operable Unit Pump-and-Treat Interim Actions for Hydraulic Containment