Archaeological investigations on Failaka Island, conducted by the Kuwait–Georgian Archeological Mission, have recorded a variety of sites dating from different time periods, from the Bronze Age to the late Islamic/modern period. The largest proportion of recorded sites consist of late Islamic seasonal settlement structures found in the north-eastern part of the island. It is possible that they were connected to fishing and associated activities such as stock-farming and agriculture, which is confirmed by the results of palynological analysis. These sites are divided into two chronological phases: one from the seventeenth to eighteenth century and the second from the nineteenth to the first half of the twentieth century. In 2018, excavations at the water collection systems within these settlements began. The results gathered so far indicate that there were two kinds of well structures. The first are interpreted as shallow filtration well pits; the second are deep wells used for collecting water from deep underground. Both systems were used to collect rainwater, which was then filtered and stored. Marine and freshwater forms of algae were found in the basal sediments of the pits, which offers evidence for the accumulation and filtration of water.

中文翻译：

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法拉卡岛晚期伊斯兰集水系统：2018-2019 年科威特-格鲁吉亚考古任务的初步结果

科威特-格鲁吉亚考古团对法拉卡岛进行的考古调查记录了不同时期的各种遗址，从青铜时代到伊斯兰晚期/现代时期。最大比例的记录地点包括在该岛东北部发现的晚期伊斯兰季节性定居点结构。它们可能与渔业和相关活动（如畜牧业和农业）有关，孢粉学分析结果证实了这一点。这些遗址按时间顺序分为两个阶段：一个是十七世纪到十八世纪，第二个是十九世纪到二十世纪上半叶。2018 年，开始对这些定居点内的集水系统进行挖掘。迄今为止收集的结果表明存在两种井结构。第一个被解释为浅层过滤井坑；第二种是用于从地下深处收集水的深井。这两个系统都用于收集雨水，然后过滤和储存。在坑的基底沉积物中发现了海洋和淡水形式的藻类，这为水的积累和过滤提供了证据。