ORNLERASE - EPA REGIONAL REMOVAL MANAGEMENT LEVELS FALL 2024 THQ=1.0

The Regional Removal Management Levels (RMLs) website provides essential tools for On-Scene Coordinators (OSCs) and site managers to assess the potential need for removal actions at contaminated sites. RMLs are chemical-specific concentrations applicable to contaminants in tap water, air, and soil, calculated using methodologies similar to those in the EPA's remedial program. However, RMLs focus on risk levels and exposure scenarios specific to identifying areas, contaminants, and conditions where removal authority may be appropriate. Unlike Regional Screening Levels (RSLs), Preliminary Remediation Goals (PRGs), or cleanup standards mandated under Applicable or Relevant and Appropriate Requirements (ARARs) of CERCLA, RMLs are not intended to serve as cleanup levels. Instead, they help guide decisions on short-term removal actions based on site-specific threats. Final cleanup values must be tailored to address the unique risks at each site. Under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), two types of response actions are authorized: remedial and removal. While remedial actions aim for long-term, significant risk reduction, removal actions focus on short-term stabilization or cleanup to address imminent and substantial threats to human health or the environment. By integrating removal and remedial approaches, the EPA ensures efficient and effective management of environmental contamination, leveraging related triggers for initiating action and pursuing shared goals for site cleanup. The RMLs are a key component of this integrated strategy, facilitating timely responses to urgent environmental risks.区域清除管理水平（Regional Removal Management Levels，RMLs）网站为现场协调员（On-Scene Coordinators，OSCs）与场地管理人员提供了不可或缺的工具，用于评估污染场地开展清除行动的潜在必要性。RMLs是针对自来水、空气与土壤中污染物的化学特异性浓度标准，其计算方法与美国环境保护署（Environmental Protection Agency，EPA）修复项目所采用的方法类似。不过，RMLs的核心聚焦于风险水平与暴露场景，用于明确适宜行使清除权限的区域、污染物类型及相关条件。 与区域筛选水平（Regional Screening Levels，RSLs）、初步修复目标（Preliminary Remediation Goals，PRGs）或《综合环境响应、赔偿和责任法》（Comprehensive Environmental Response, Compensation, and Liability Act，CERCLA）规定的适用相关及适当要求（Applicable or Relevant and Appropriate Requirements，ARARs）下的清理标准不同，RMLs并非旨在作为清理基准。相反，它们可辅助基于场地特异性威胁开展短期清除行动的决策制定。最终清理值需针对每个场地的独特风险进行定制化调整。 根据《综合环境响应、赔偿和责任法》（CERCLA），获批的响应行动分为两类：修复行动与清除行动。修复行动旨在实现长期、显著的风险降低，而清除行动则聚焦于短期稳定或清理工作，以应对对人类健康或环境构成的紧迫且重大威胁。 通过整合清除与修复措施，美国环境保护署可实现对环境污染的高效且有效管理，借助行动启动的相关触发条件，推进场地清理的共同目标。RMLs是这一整合策略的关键组成部分，有助于对紧迫环境风险做出及时响应。