本幻灯片演示概述了俄勒冈州比弗顿的一个案例研究，该案例研究使用示踪研究来评估用于准备初始分配系统的水力模型 评估（IDSE）。该项目的目标是确定最佳的IDSE合规性选项 评估现有的水力模型，以便在准备中使用 由IDSE决定 走哪条路:a 标准监测计划或 系统特定研究。第一步涉及水力模型验证，第二步是模拟示踪剂研究模型。示踪剂研究结论包括: 比弗顿系统运营包括 根据报告的预期需求，系统运行每天都会发生变化 致JWC， 系统中的许多PRV（超过50）使用有限的流量数据建立模型 校准具有挑战性， ASR操作增加了系统操作的复杂性，模型中统一需求的假设不适合IDSE； 示踪剂研究表明，该模型能很好地预测氟的迁移 除了镇东北部的两个地点； 示踪剂研究证实，5mg罐内混合不良；和 使用标准监控计划方法执行IDSE。进一步的主题包括:准备IDSE计划；确定IDSE采样点；候选IDSE监控位置；然后，选择IDSE监控站点。包括表格、数字。

This slide presentation outlines a case study in Beaverton, Oregon, on using a tracer study to evaluate a hydraulic model for use in preparing Initial Distribution System Evaluation (IDSE). The project objective was to identify the best IDSE compliance option, to evaluate an existing hydraulic model for use in preparation of IDSE, and to decide which route to take: a standard monitoring plan or a system specific study. Step 1 involved a hydraulic model verification, Step 2 was to simulate a tracer study model. Tracer study conclusions included: Beaverton system operations included a system operations change on a daily basis based on expected demand reported to JWC, many PRVs (over 50) in the system with limited flow data makes model calibration challenging, ASR operation adds layer of complexity to system operation, and assumption of uniform demand in model not adequate for IDSE; tracer study showed model predicts fluoride transport fairly well with the exception of two locations in the northeast part of town; tracer study confirmed poor mixing in 5 MG tank; and, use the Standard Monitoring Plan approach to perform IDSE. Further topics covered include: preparing an IDSE plan; identify IDSE sampling sites; candidate IDSE monitoring locations; and, select IDSE monitoring sites. Includes tables, figures.