瓦渣田遗址位于皇华岛中部偏东南，西部紧邻大湾衙署区，2022年考古发掘揭露。衙署区围墙为该遗址重要发现，由护坡、墙体、垫土三部分组成。衙署区围墙的发现，进一步明确了大湾遗址的分布情况、四至范围，为皇华城咸淳府衙署的布局结构提供了新的线索。此外，瓦渣田片区还清理出了明代水池、墓葬，清代灰坑、道路及民国时期道路等遗迹。
Wa Ja Da Field site is located in the southeast of the central part of Huang Hua Island, close to the west of the Da Wan Ya Ya District. unearthed by archaeological excavations in 2022. The wall of Ya Shan District is an important discovery of the site. which is composed of slope protection, wall and soil cushion. The discovery of the wall in the Ya Men district further clarified the distribution and range of the Da Wan site. and provided new clues for the layout and structure of the Ya Men of the Xian Chun Prefecture of Huang Hua City. in addition, the Wa Ja Da Field area has also cleared out the Ming Dynasty pools, tombs, Qing Dynasty ash pits, roads and roads in the Republic of China.
