随着恐怖主义行动对我国供水系统的威胁迫在眉睫，伊利县 水资源管理局（ECWA）开始评估加强水质监测的方法 努力。ECWA开始正式确定其水质监测的结构 使用现有功能进行编程。作为这一增强过程的一部分 水质部开始考虑使用水务局的 现有地理信息系统（GIS）用于优化水质监测计划，并增加 对潜在水质问题的认识和响应。 制定了全面的水质监测计划，以监测饮用水情况 为纽约西部50多万人口供水 状态使用非常规测试和监测方法，如 Microtox和TOC筛查成为日常水系统监测工具。细菌的 对水中的含量进行了比正常情况更多的检查，并发现了任何可疑的毒性 结果之后是内部GC/MS库搜索可能的污染物。 随着水质监测计划的实施，伊利县水务局 寻求改进当前采样和测试程序的方法。第一个 第一步是实现GIS系统的当前潜力。样本位置已加载 根据地理信息系统的实际位置。这提供了一种初步的解决方法 评估采样点在系统中的位置，同时能够 获取关键信息，如关闭时水管、阀门或消防栓的尺寸 靠近采样点。每日样本路线现在基于 选择位置以反映整个供水系统的覆盖范围。 当前采样 该计划规定每天采样，包括周末和节假日，并允许 大肠菌群、SPC、TOC和微量毒素分析。如果系统出现问题 配电系统GIS允许对所服务的所有采样点进行地理评估 由两个处理厂处理。它允许用户评估一个场地，以确定是否有水 质量问题是否是特定于站点的，以及它是否会影响分发的其余部分 系统它还提供了一种简单的方式来检测最接近环境的采样点 系统内受影响的区域或场所。 如果出现重大水质问题 GIS系统允许对受影响区域及其基础设施进行地理评估 以及提供快速测定样品位置的方法 在问题现场的给定圆周范围内。在正常采样和监测下 在这种情况下，最有效的路线可以由GIS规划，但如果发生 应急GIS还可用于确定车队中的哪辆采样车辆 通过使用自动车辆定位器（AVL）最接近受影响现场。这 用于快速重新评估样本站点。

With the threat of terrorist action on our nation's water systems looming, the Erie County Water Authority (ECWA) began to evaluate ways of enhancing its water quality surveillance efforts. The ECWA began to formalize the structure of its water quality surveillance program using its existing capabilities. As a part of this enhancement process, its Department of Water Quality began to look toward the use of the Water Authority's existing geographic information system (GIS) to optimize the water quality surveillance program and increase awareness and response to potential water quality issues. A full-scale water quality surveillance program was developed to monitor the drinking water for the population of just over 500,000 people that it serves in Western New York State. The use of non-conventional testing and monitoring methodologies such as Microtox£ and TOC screening became daily water system monitoring tools. Bacterial levels in the water were scrutinized more than normal, and any questionable toxicity results were followed by in-house GC/MS library searches for possible contaminants. With the Water Quality Surveillance Program in place, the Erie County Water Authority looked to develop ways to enhance the current sampling and testing program. The first step was to realize the current potential of the GIS system. Sample locations were loaded onto the GIS, based upon their physical locations. This provided an initial means of evaluating the placement of sampling locations in the system while also being able to access crucial information such as the size of the water lines, valves or hydrants in close proximity to the sampling sites. Daily sample routes are now developed based upon the locations selected to reflect coverage of the entire water system. The current sampling program provides for sampling daily, including weekends and holidays and allows for coliform, SPC, TOC, and Microtox£ analysis. In the event of a problem in the distribution system the GIS permits a geographical evaluation of all sample sites served by both treatment plants. It allows the user to evaluate a site to determine if a water quality problem is site specific or not and whether it will affect the rest of the distribution system. It also provides an easy manner for detecting those sampling sites closest to the effected area or site within the system. In the event of a major water quality problem, the GIS system allows for a geographic evaluation of the affected area and its infrastructure characteristics, as well as providing a means for the rapid determination of sample sites within a given circumference of the problem site. Under normal sampling and monitoring conditions, the most efficient routes can be planned by the GIS, but in the event of an emergency the GIS can also be used to determine which sampling vehicle in the fleet is closest to the affected site through the use of the Automatic Vehicle Locator (AVL). This provides for rapid re-evaluation of the sample site.