地下水补给（GWR）系统是一种保持 奥兰治县的地下水盆地是满足该地区未来需求的可靠来源 饮用水需要。奥兰治县水区（OCWD）的联合项目 在奥兰治县环卫区（OCSD），GWR系统是一个雄心勃勃的项目， 建设先进的循环水处理设施的大型项目 （AWTF）处理二次废水以供再利用。该设施将取代老化的设备 第21水厂（WF21）于1976年完工，是首批回收利用的水厂之一 世界上的水处理厂。用微孔膜作预处理 对于反渗透（RO）和反渗透后的紫外线辐射（UV），第1阶段 GWR系统每天将产生7000万加仑（mgd）的高处理水，这些水 将符合所有饮用水标准。处理后的水将被注入管道 地面供应当地海水入侵屏障，并渗透至扩散区域 用于地下水补给的盆地，从而减少南加州对地下水的依赖 进口水。除了提供新的当地水源，该项目还将 消除了向太平洋增加排水口的需要，并将改善环境 奥兰治县地下水流域的水质。 像GWR系统这样庞大而复杂的项目面临着许多重大挑战 设计和施工阶段的实施挑战。 决赛 设计阶段于2001年3月开始，将于2003年年中完成。这个 这项工程的巨大规模需要多个设计，其中包括七个主要建筑 项目设施合同，包括临时预处理微滤（MF）系统、MF和 紫外线预选工艺系统、AWTF、输送管道和屏障 设施保持设计方法和内容一致性的标准，以及严格的 已实施质量控制程序，为A提供基础。 成功的设计。专业设施团队提供制作和记录的框架 指导项目的经批准的技术和管理决策。 广阔的 初步设计期间启动的应急计划目前正在进行中 用于帮助该项目满足严格的公共卫生要求。打击恐怖主义 公众对饮用回收废水的负面看法，有凝聚力的公众宣传 包括公共演讲、印刷品和广播/电视媒体的节目 公告正在引导该地区的选民走向最终的公开选举 在南加州其他类似项目已经完成的情况下，接受该项目 失败。包括表格、数字。

The Groundwater Replenishment (GWR) system is an innovative approach to keeping Orange County's groundwater basin a reliable source for meeting the region's future potable water needs. A joint program of the Orange County Water District (OCWD) and the Orange County Sanitation District (OCSD), the GWR system is an ambitious, large-scale project that will construct an advanced recycled water treatment facility (AWTF) to treat secondary wastewater for reuse. The facility will replace the aging Water Factory 21 (WF21) which, when completed in 1976, was one of the first recycled water treatment plants in the world. Using microporous membranes as pretreatment for reverse osmosis (RO) and ultraviolet radiation (UV) following RO, Phase 1 of the GWR system will produce 70 million gallons per day (mgd) of highly treated water that will meet all drinking water standards. The treated water will be injected into the ground to supply the local seawater intrusion barrier and percolated into spreading basins for groundwater recharge, thus reducing Southern California's dependence on imported water. Besides providing a new, local source of water, the project will also eliminate the need for an additional outfall to the Pacific Ocean, and will improve the water quality of the Orange County groundwater basin. A project as large and sophisticated as the GWR system faces many significant implementation challenges through both the design and construction phases. The final design phase, which began in March 2001, will be completed by mid 2003. The immensity of the work requires multiple designs with over seven major construction contracts for project facilities, including a temporary pretreatment microfiltration (MF) system, MF and UV pre-selected process systems, the AWTF, the conveyance pipelines, and the barrier facilities. Standards to maintain consistency in design approach and content and a strict quality control procedure have been implemented to provide the foundation for a successful design. Specialized facility teams provide the framework to make and record the approved technical and management decisions guiding the project. Extensive contingency planning that was started during the preliminary design is now being applied to help the project meet strict public health requirements. Combating the negative public perception of drinking recycled wastewater, a cohesive public outreach program encompassing public presentations and print and radio/television media announcements is leading the District's constituents towards ultimate public acceptance of this project where other similar projects in Southern California have failed. Includes tables, figures.