I recommend the novel My Small Reservoir in the Mountains as a novel where the main character has a reservoir. This novel was about a man who resigned and returned to his hometown to contract a reservoir and live a life he yearned for. Although the protagonist's name is Xia Ming, which is different from the description of the problem, this novel may meet your needs.
The water source of Cetian Reservoir mainly came from the middle and upper section of Sanggan River basin. Sanggan River originates from Miaoergou of Guancen Mountain in Ningwu, passes through Ningwu and Yangfangkou, and receives Qili River at Taipingyao Reservoir in Shuocheng District. Then it is called Sanggan River after Nayuanzi River near Qinghe Temple, 1 km downstream of Mayi in Shuocheng District. The Sanggan River avoided the northeast from the southwest and flowed through the entire Datong Basin before finally entering the area of the Cetian Reservoir. Therefore, the water source of Cetian Reservoir came from the Sanggan River basin.
Since I don't have the actual text of 'the reservoir short story', it's hard to say exactly what it's about. However, it could be a story that uses the reservoir as a backdrop for a human drama. It might be about a group of friends who go to the reservoir for a picnic and end up having an argument that reveals deeper issues in their relationships. Or it could be a story about the history of the reservoir, how it was built, and the impact it had on the local community.
I don't know who wrote 'the reservoir short story' as there could be many stories with this name. It could be an unknown local writer or someone just starting out.