肯塔基州特里姆布尔县是一个农业小县，位于路易斯维尔以北约45英里处 沿着俄亥俄河。Trimble县第一水区（TCWD1）服务于该县的大部分地区。 TCWD1成立于1956年，以合同形式运营，直到1996年才雇佣了第一位地区经理和 地区接线员。到2000年，TCWD1通过65英里的系统为大约1300名客户提供服务，提供 从265000加仑的储水量中每分钟约250加仑。 在1996年至1999年期间，地区经理和地区运营商多次发现 没有内部的书面信息来回答基本的管理和运营问题。2000年，一家工程公司通过采购水管线扩建工程了解到TCWD1 设计并随后确定了水资源总体规划和系统清单地图的不足，以适应 小型农村供水设施。这家工程公司是通过政府采购来制定总体规划的 竞争过程基于他们在小型农村公用事业方面的经验和他们在水资源方面的创新 技术 2001年2月，完成了总体规划，详细说明了项目规划区域，并进行了清单编制 绘制了现有设施的地图，完成了全系统的水力模型，并进行了分析和预测 增长趋势、评估的未来产能，以及建议的运营和运营成本节约改进 计划。 项目规划区工作确定了该地区的增长区域和人口趋势 需要有计划。由于其位于肯塔基州路易斯维尔和辛辛那提之间的中心位置， 俄亥俄州特林布尔县作为这两个城市的卧室社区，每年都以3%的速度增长。地图和地图 现有设施的清单使用了美国地质勘探局免费提供的数字地形四边形地图 以互联网为基础收费。在这张地图上贴着最著名的水线位置，一直到1- 直径1英寸。水线用颜色编码，用于直径识别和管道材料（如适用） 注意到了PVC以外的东西。数字地图上还包括所有阀门的位置， 减压器、消防栓、增压站、水箱和水井。数字测绘工作为开发稳态水力模型提供了可用的基础 使用Haestad的WaterCAD模型。系统需求根据位置分配给管道 以及根据账单记录确定的客户使用情况。提供了水力模型分析 以下信息: 系统中的压力是低还是高； 那里有更多的水，那里的水更少； 那里的水更年轻（更新鲜），需要冲洗； 如果延长线会提高系统的容量，则会降低系统的容量；而且，运营变化将立即产生成本节约。 使用已知触发器操作液压模型，在每个增压器上打开和关闭泵 在泵站方面，很容易发现系统配置中的弱点 活动 最后，该模型用于确定增加更多客户以模拟10和20的影响 年度增长预测。

Trimble County, Kentucky is a small rural agricultural county located about 45 miles north of Louisville along the Ohio River. Trimble County Water District No. 1 (TCWD1) serves the majority of the county. TCWD1 was started in 1956, operated by contract until 1996 when it hired its first District Manager and District Operator. By 2000, TCWD1 served about 1300 customers through 65 miles of system, supplying about 250 gallons per minute from 265,000 gallons of water storage. During the period 1996 - 1999, the District Manager and District Operator repeatedly found that there was no in-house, written information to answer the fundamental management and operation questions. An engineering company learned of TCWD1 in 2000 through procurement for water line extension design and subsequently identified the lack of a Water Master Plan and System Inventory Map tailored to the small, rural water utility. The engineering firm was procured for a Master Plan through the competitive process based on their experience with small, rural utilities and their innovations in water technology. In February of 2001, the Master Plan was completed that detailed the project planning-area, inventoried and mapped the existing facilities, completed a system-wide hydraulic model, analyzed and projected growth trends, assessed future capacity, and recommended cost saving improvements for operations and planning. The project planning-area work identified growth areas and population trends within the district that needed to be planned for. Because of its central location between Louisville, Kentucky and Cincinnati, Ohio, Trimble County is experiencing growth of 3% per year as a bedroom community to both cities. The mapping and inventory of the existing facilities utilized the digital USGS topographic quadrangle map available free of charge from the internet as a base. Posted on this map were the best known locations of all water lines down to 1-inch in diameter. Waterlines were color-coded for diameter identification and pipe material if something other than PVC was noted. Also included on the digital map were the locations of all valves, pressure reducers, hydrants, booster stations, water tanks, and wells. The digital mapping efforts served as a usable base for the development of a steady-state hydraulic model using Haestad's WaterCAD model. System demands were allocated to the pipes based on the locations and usage of customers determined from billing records. The hydraulic modeling analyses provided information on: where in the system pressures would be low or high; where more water was available and where less; where water would be younger (fresher) and where a flushing program was needed; where line extensions would enhance or lessen the capacity of the system; and, where operational changes would produce immediate cost savings. Operating the hydraulic model using the known triggers to turn the pumps on and off at each booster station, readily identified weaknesses in the configuration of the system with respect to pump station operation. Finally, the model was used to determine the impact of adding more customers to simulate the 10 and 20 year growth projections.