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首页> 外文会议>AWRA symposium on conjunctive use of water resources: Aquifer storage and recovery >WELLHEAD TREATMENT AS AN ALTERNATIVE TO STANDARD REMEDIATION METHODS FOR REGIONAL GROUNDWATER CONTAMINATION PROBLEMS
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WELLHEAD TREATMENT AS AN ALTERNATIVE TO STANDARD REMEDIATION METHODS FOR REGIONAL GROUNDWATER CONTAMINATION PROBLEMS

机译：井口治疗是区域地下水污染问题的标准修复方法的替代方法

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Thousands of instances of groundwater contamination have been documented in California. Where groundwater has been designated as having a "beneficial use" by a California Regional Water Quality Control Board (RWQCB), groundwater remediation at the point of contamination is usually required. State Board Resolution No. 92-49, the "Policies and Procedures for Investigation and Clean-Up and Abatement of Discharges" under Section 13304 of the California Water Code, authorized the RWQCB to require complete cleanup and restoration of affected water to background conditions, and Section 13307 required the State Water Resources Control Board to identify and utilize the most cost-effective methods for cleanup or abatement of the effects of contamination. In October 1996, the State Board adopted Resolution No. 96-79 which amended Resolution No. 92-49, to incorporate the "containment zone policy", in part because it was apparent that many groundwater remediation systems installed at sources of contamination were likely to operate for decades without the technical assurance of restoring groundwater to background conditions. Given the widespread occurrence of groundwater contamination in California, treatment of extracted groundwater at the point of use (wellhead treatment) may be more cost effective than aquifer restoration at source areas. While some degree of plume monitoring, containment, or "hot spot" mass removal may be required at many sites, a shift in emphasis from source area aquifer restoration to wellhead treatment and water reuse may be justified for many areas where groundwater degradation is widespread and/or multiple sources with commingling plumes are present. Additionally, treating water at the point of use is consistent with a risk-based approach to environmental restoration, where limited resources are used to solve actual problems.
机译：成千上万的地下水污染的情况下，已被证明在加利福尼亚州。在地下水已被指定为具有“有益用途”由加州区域水质管理委员会（RWQCB），在污染点地下水修复通常需要。国家局号决议92-49，加州水法典第13304下的“政策和程序调查和放电的清理和减排”，授权RWQCB要求完成清理和受影响的水恢复的背景条件下，和第13307要求该国水资源控制委员会，以确定和利用的污染的影响清理或减排最具成本效益的方法。 1996年10月，国家局通过的决议第96-79其修改后的决议第92-49，以纳入“遏制区域策略”，部分原因是因为很显然，安装在污染源的许多地下水修复系统有可能几十年没有恢复地下水的背景条件下的技术保障工作。鉴于在使用（井口处理）的点在加利福尼亚地下水污染，处理提取的地下水普遍发生可以比含水层恢复在源极区更具成本效益。虽然可以在许多网站需要某种程度的羽监控，遏制或“热点”大规模搬迁，从源头地区含水层恢复到井口处理及中水回用重点的转移可能是合理的许多领域地下水退化现象十分普遍，与搀和羽状/或多个源存在。此外，在使用点水处理是一个基于风险的方法对环境的恢复，在有限的资源用于解决实际问题相一致。

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