带有未覆盖成品水库的公用设施 面临许多水质、安全和监管挑战。 这些公共设施将需要提供 储存或处理应符合长期要求2 强化地表水处理规则（LT2ESWTR） 要求。本文概述了 未发现水库的历史，确定了 讨论了如何改善未覆盖水库的保护 符合LT2ESWTR的选项，介绍 关于合规性的决策方法， 并介绍了案例研究，展示了如何 实施了各种合规替代方案。 有多种覆盖和治疗选择 可能适用于LT2ESWTR合规性， 必须考虑许多评估标准 选择法规遵从性备选方案时。建议这样做 每个实用程序确定、优先排序和 根据具体标准对备选方案进行排名 确保其法规遵从性和项目目标。 典型的评估标准包括法规遵从性， 水质影响、现场美学、操作 和维护要求、脆弱性/公共性 安全、成本、许可要求和设计 生活包括26个参考文献、表格和图表。

Utilities with uncovered finished water reservoirs face many water quality, security, and regulatory challenges. These utilities will need to provide covered storage or treatment to comply with the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) requirements. This article provides an overview of the history of uncovered reservoirs, identifies drivers for improving protection of uncovered reservoirs, discusses options for compliance with the LT2ESWTR, presents an approach to decision-making regarding compliance, and presents case studies that demonstrate how utilities have implemented various compliance alternatives. A variety of cover and treatment options are potentially appropriate for LT2ESWTR compliance, and many evaluation criteria must be considered when selecting a compliance alternative. It is recommended that each utility determine, prioritize, and rank its alternatives based on criteria that are specific to its regulatory compliance and project goals. Typical evaluation criteria include regulatory compliance, water quality effects, site aesthetics, operations and maintenance requirements, vulnerability/ public safety, cost, permitting requirements, and design life. Includes 26 references, tables, figure.