Sewer Subbasins

This data shows the sewerage subbasins in Pierce County Sewer Service area. A sewerage basin represents the existing and planned areas from which wastewater is collected and sent to specific wastewater treatment plants. Sewerage basins are often confused with watersheds or drainage basins. Because most sewer pipelines are designed for gravity flow, a sewerage basin is primarily defined by the topography of the watershed or drainage basin where it is located. Please read metadata for additional information (https://matterhorn.piercecountywa.gov/GISmetadata/pdbsewr_subbasins_cartographic.html). Any use or data download constitutes acceptance of the Terms of Use (https://matterhorn.piercecountywa.gov/Disclaimer/PierceCountyGISDataTermsofUse.pdf).

本数据集展示了皮尔斯县污水服务区内的污水子流域（sewerage subbasins）。污水流域（sewerage basin）指收集污水并输送至特定污水处理厂的现有及规划区域。污水流域常与水文流域（watersheds）或汇水流域（drainage basins）相混淆。由于多数污水管道采用重力流设计，污水流域的划定主要依据其所在水文/汇水流域的地形地貌。如需获取更多详细信息，请查阅元数据（metadata）：https://matterhorn.piercecountywa.gov/GISmetadata/pdbsewr_subbasins_cartographic.html。任何使用或下载本数据的行为，即视为您已同意本数据使用条款（Terms of Use）：https://matterhorn.piercecountywa.gov/Disclaimer/PierceCountyGISDataTermsofUse.pdf。