本幻灯片概述了一项研究:定义术语“连续系统”（CS）- 水系统从另一个系统购买水， 早期监管不具体，以及 第二阶段DBP规则下的具体规定；CS的DBP控制策略- 基于历史数据描述CS和WS中的DBP 调查和抽样调查，为CS制定保留研究方案， 了解储存设施运行的影响， 评估助推器消毒；然后，回答以下问题: WS和CS如何在一级设定水质目标 购买地点；水时代的最佳管理实践是什么 在CS中；和 WSs协助CSs的可行选项是什么 为了遵守DBP规则？项目方法包括: 历史考察； 抽样调查； 发展hold学习方法； 消毒策略的实验室规模评估； 储存设施的评估；据AwwaRF报道。会议摘要 公用事业调查包括: 大部分联系的公用事业公司都参与了这项工作 调查 公用设施调查提供了有关消毒的宝贵信息 WSs和CSs的实践； 水源水TOC或溴化物（DBP）较高 （a）非职业- Cl₂/Cl₂系统；和 练习Cl₂/Cl₂和/或 Cl₂/NH₂Cl，而大部分CSs使用Cl_2M/NH₂Cl。 DBPs前体概述包括: 对于满足80%MCLs（64微克/升）的水溶性悬浮液和悬浮液 TTHMs需要成品水TOC？3.0 mg/L； 对于满足80%MCLs（48微克/升）的水溶性悬浮液和悬浮液 HAA5要求成品水TOC为4.0 mg/L。分配汇总包括: 对于WSs和CSs，分布中占主导地位的DBP是 TTHMs； 对于Cl₂/NH₂Cl系统，TTHMs的优势更大 到Cl₂/Cl₂系统； TTHMs和HAA5增长（即从成品到分布式） 水）对于Cl₂/Cl₂系统类似，但对于 Cl₂/NH₂Cl系统； HAA5在配电系统中略有下降；和 在这项调查中，我们没有发现任何显著的相关性 DBPs随水龄而变化。包括表格、数字。

This slide presentation outlines a study to: define the term "Consecutive Systems" (CS) - water system purchasing water from another system, earlier regulation non-specific, and specific under Stage 2 DBP Rule; DBP control strategies for CS - characterize DBPs in CS and WS based on historical surveys and sampling survey, develop a hold study protocol for CS, understand impact of storage facility operation, evaluate booster disinfection; and, answer the following questions: how does a WS and CS set water quality goals at the point of purchase; what is the best management practice for water age in CS; and, what are the feasible options for WSs to assist CSs for complying with DBP Rule? The project approach included: historical survey; sampling survey; development of hold study approach; bench-scale evaluation of disinfection strategies; evaluation of storage facilities; and, AwwaRF Reports. Summary of the utility survey included: large portion of the contacted utilities participated on this survey; utility survey provided valuable information on disinfection practices for both WSs and CSs; WS with source water of higher TOC or bromide (DBP precursors) practiced non-Cl₂/Cl₂ system; and, equal number of WS either practiced Cl₂/Cl₂ and/or Cl₂/NH₂Cl, whereas larger portion of CSs practiced Cl_2M/NH₂Cl. Summary of DBPs precursors included: for both WSs and CSs meeting the 80% MCLs (64 µg/L) of TTHMs will require finished water TOC ¿¿¿¿¿¿¿ 3.0 mg/L; for both WSs and CSs meeting the 80% MCLs (48 µg/L) of HAA5 will require finished water TOC ¿¿¿¿¿¿¿ 4.0 mg/L. Summary at distributions included: for both WSs and CSs dominant DBP in distribution is TTHMs; the dominance of TTHMs is greater for Cl₂/NH₂Cl system to Cl₂/Cl₂ system; TTHMs and HAA5 growth (i.e., of finished to distributed water) is similar for Cl₂/Cl₂ system but reduces for Cl₂/NH₂Cl system; HAA5 slightly decreases in distribution system; and, no significant relationship were found on this survey for DBPs with water age. Includes tables, figures.