Environmental Water Quality Information

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Reservoir Monitoring

Trophic state indices of reservoirs around Taiwan

Legend: No testing data; Oligotrophic; Mesotrophic; Eutrophic

Statistics Time : Latest Issue

The monitoring frequency of reservoirs is

once every quarter

Rankings of eutrophic reservoirs

26 reservoirs around Taiwan are monitored, 20 of which are important sources of domestic water supply, including Hsin-Shan, Fei-Tsui, Shih-Men, Pao-Shan, Yung-Ho-Shan, Ming-Te, Li-Yu-Tan, Te-Chi, Wu-She, Jih-Yueh-Tan, Lan-Tan, Jen-Yi-Tan, Pai-Ho, Tseng-Wen, Wu-Shan-Tou, Nan-Hua, Ching-Mien, Cheng-Ching-Hu, Feng-Shan, and Mu-Tan Reservoirs. The other six reservoirs, including Hsi-Shih, Pao-Shan II, Ta-Pu, Tou-She, Hushan, and A-Kung-Tien Reservoirs, have smaller storage areas and mainly provide water for industrial or agricultural purposes. Thus, they are considered secondary reservoirs.

1 Feng-Shan Reservoir: 75

2 Li-Yu-Tan Reservoir: 70

3 Ming-Te Reservoir: 62

Statistics Time : Latest Issue

Hsin-Shan Reservoir - Water pollution information

Station:

Legend: No testing data; Oligotrophic; Mesotrophic; Eutrophic

Water monitoring station information

Water Classification

Category A water bodies may be used for Class 1 public water, swimming and as Category B, C, D, and E water bodies.
Category B water bodies may be used for Class 2 public water, Class 1 aquaculture water and as Category C, D, and E water bodies.
Category C water bodies may be used for Class 3 public water, Class 2 aquaculture water, Class 1 industrial water and as Category D and E water bodies.
Category D water bodies may be used for irrigation water, Class 2 industrial water, and environmental conservation.
Category E water bodies may be used for environmental conservation.

Latitude and longitude

25°7'50"，121°42'35.6"

Recent monitoring sample photos