Five-year summary and evaluation of operations and performance of the Utica aquifer and North Lake Basin Wetlands restoration project in 2004-2009.

LaFreniere, L. M. (Environmental Science Division)

关键词: AGRICULTURE;    AIR;    AQUIFERS;    COMPLIANCE;    EVALUATION;    IRRIGATION;    LAKES;    MONITORING;    ORGANIC COMPOUNDS;    PERFORMANCE;    SAMPLING;    STORAGE;    WETLANDS;   

DOI  :  10.2172/1026630
RP-ID  :  ANL/EVS/AGEM/TR-11-05
PID  :  OSTI ID: 1026630
Others  :  TRN: US201121%%7

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

This document reviews the performance of the groundwater (and wetlands) restoration program implemented by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) at the former CCC/USDA grain storage facility in Utica, Nebraska, during the first five years (2004-2009) of this initiative. The report summarizes treatment system operational data and regulatory compliance monitoring results for the site during this period, together with the results of the targeted groundwater sampling and analysis for volatile organic compounds (VOCs) conducted in early 2010 (following completion of the fifth year of systems operation), to assess the initial five years of progress of the Utica remediation effort. On the basis of the 2003 groundwater sampling results, a remedial system employing 4 extraction wells (GWEX1-GWEX4), with groundwater treatment by spray irrigation and conventional air stripping, was implemented with the concurrence of the CCC/USDA and the agencies (Table 1.1). The principal components of the system are shown in Figure 1.3 and are briefly described in Section 1.2. Operation of well GWEX4 and the associated air stripper began on October 29, 2004, and routine operation of wells GWEX1-GWEX3 and the spray irrigation treatment units began on November 22, 2004.