Data points, corresponding to the bathymetric contours of Lago La Plata, Puerto Rico, March-April 2015

The U.S. Geological Survey conducted a sedimentation survey of Lago La Plata, Toa Alta, Puerto Rico, during March and April 2015 to provide up-to-date information about the relation of pool elevation and storage volume in the reservoir. The survey was conducted in cooperation with the Puerto Rico Aqueduct and Sewer Authority. A total of 264 navigation lines were surveyed, using a depth sounding device coupled to a global positioning system. The results of the survey were used to prepare a bathymetric map showing the reservoir bottom referenced with respect to the spillway elevation.

美国地质调查局（U.S. Geological Survey）于2015年3月至4月对波多黎各托阿阿尔塔的拉普拉塔湖（Lago La Plata）开展淤积勘测，旨在为该水库的池面高程与库容的对应关系提供最新参考数据。本次勘测由波多黎各自来水与下水道管理局（Puerto Rico Aqueduct and Sewer Authority）协作完成。本次勘测共完成264条测量航线的外业作业，采用集成全球定位系统（global positioning system）的测深设备开展工作。勘测结果被用于编制以溢洪道高程为基准的水库水下地形测量图（bathymetric map）。