辽源市位于东辽河上游河谷平原上,是吉林省重要的工业城市。市区为低山丘陵环绕,地表水系发育,第四纪堆积层4～9米,市区环境容量小,自净功能差。市内大部分厂矿无处理“三废”设施,而且随便排放,使市区地表水、地下水污染严重,一些供水井报废。同时污染已影响到市区下游东辽河沿岸地带的其它城镇。一、水质污染现状市区地表水、地下水,由于强烈的人为活动影响,已基本改变了天然条件下的水质 Liaoyuan City is located in the upper reaches of the East Liaohe River Valley Plain, Jilin Province is an important industrial city. The urban area is surrounded by hilly land, and the surface water system develops. The Quaternary sediments are 4 to 9 meters in size. The urban environmental capacity is small and the self-purification function is poor. Most factories and mines in the city do not deal with “three wastes” facilities, and they are discharged at will. As a result, surface water and groundwater in urban areas are seriously polluted and some water supply wells are scrapped. At the same time, pollution has affected other urban areas along the Dongliaohe River downstream of the town. First, the status of water pollution Urban surface water, groundwater, due to strong human activities, has basically changed the water quality under natural conditions