The "Technical Standard for Groundwater Monitoring Engineering" is now approved as a national standard, numbered GB/T51040-2023, and will be implemented from May 1, 2024. The original national standard "Technical Specifications for Groundwater Monitoring Engineering" (GB/T51040-2014) was abolished at the same time. This standard is made public on the website of the Ministry of Housing and Urban-Rural Development (www.mohurd.gov.cn), and is published and distributed by the China Planning Publishing House Co., Ltd. organized by the Standards and Quota Research Institute of the Ministry of Housing and Urban-Rural Development. Ministry of Housing and Urban-Rural Development September 25, 2023