《水经注·卷十六》
郑渠旧道又往东流经戳薛山南面、池阳县旧城北面，又往东穿过清水，又往东流经北原下，有浊水注入。从浊水入口处起，上流现在已经无水了。
郑渠故渎又东径嶻薛山南，池阳县故城北，又东绝清水。又东径北原下，浊水注焉，自浊水以上，今无水。
The old Zheng Qu then flows east through the south face of Chuo Xue Shan and the north face of the old city of Chi Yang County. It then flows east through Qing Shui and then east past Bei Yuan Xia, where Zhuo Shui flows in. From the inlet of Zhuo Shui, the upper reaches are now waterless.