Idaho DEQ Source Water Time of Travel Zones

Source Water Assessments in Idaho A source water assessment (SWA) summarizes the likelihood of individual drinking water sources becoming contaminated (usually a short-term "contamination event") and serves as a foundation for public water systems to prepare source water (drinking water) protection plans and implement protection measures. Each source water assessment report: Defines the zone of contribution, which is that portion of the watershed or subsurface area contributing water to the well, spring, or surface water intake (source water area delineation) Identifies the significant potential sources of drinking water contamination in those areas (potential contaminant source inventory) Determines the likelihood that the water supply will become contaminated (susceptibility analysis) Source water assessments are the cornerstone for source water protection. Local communities can use the information gathered through the assessment process to create a broader source water protection program to address current problems and prevent future threats to the quality of their drinking water supplies. The information acquired from assessments also assists DEQ in overseeing public water systems. Source Water Assessment Database Access source water assessment information for Idaho public water systems using the Source Water Assessment Database. The database provides information on the assessed sources (well, spring, or surface water intake), including a potential contaminant inventory, susceptibility (to contamination) summary, maps (both a static and dynamic map) of the source water delineation, and a summary report. You can search the database by county, public water system number, water system name, and/or type of source. Idaho DEQ Source Water Home Source Water Assessment Database Source Water Assessment ArcGIS Server Map Application爱达荷州水源评估（Source Water Assessment，SWA）会总结单个饮用水水源受污染（通常为短期‘污染事件’）的可能性，同时作为公共供水系统制定水源（饮用水）保护规划并落实保护措施的基础。 每份水源评估报告需完成以下工作： 1. 划定贡献区域（zone of contribution），即向水井、泉眼或地表水取水口供水的流域或地下区域（水源区域划定）； 2. 识别上述区域内饮用水污染的重大潜在来源（潜在污染源清单）； 3. 评估供水系统受污染的可能性（敏感性分析）。 水源评估是水源保护的基石。地方社区可借助评估过程中获取的信息，制定更全面的水源保护方案，以解决当下存在的问题，并防范饮用水供水质量面临的未来威胁。 通过评估获取的信息也可帮助环境质量部（DEQ）监管公共供水系统。 水源评估数据库 可通过水源评估数据库（Source Water Assessment Database）查询爱达荷州公共供水系统的水源评估信息。该数据库提供已评估水源（水井、泉眼或地表水取水口）的相关信息，包括潜在污染源清单、污染敏感性摘要、水源划定地图（含静态地图与动态地图）以及评估报告摘要。用户可按县、公共供水系统编号、供水系统名称和/或水源类型进行数据库检索。 爱达荷州环境质量部（DEQ）水源主页 水源评估数据库 水源评估ArcGIS Server地图应用程序