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Reservoir Monitoring

Trophic state indices of reservoirs around Taiwan

Legend

No testing data

Oligotrophic

Mesotrophic

Eutrophic

Lienchiang Kinmen Penghu Te-Chi Reservoir : Mesotrophic 48 Nan-Hua Reservoir : Mesotrophic 43 Ching-Mien Reservoir : Eutrophic 57 Wu-Shan-Tou Reservoir : Mesotrophic 48 Pai-Ho Reservoir : Eutrophic 56 Mu-Tan Reservoir : Mesotrophic 49 Tou-She Reservoir : Mesotrophic 46 Jih-Yueh-Tan Reservoir : Oligotrophic 39 Wu-She Reservoir : Eutrophic 55 Yung-Ho-Shan Reservoir : Mesotrophic 48 Feng-Shan Reservoir : Eutrophic 72 Cheng-Ching-Hu Reservoir : Mesotrophic 48 A-Kung-Tien Reservoir : Mesotrophic 49 Li-Yu-Tan Reservoir : Mesotrophic 45 Ming-Te Reservoir : Eutrophic 66 Shih-Men Reservoir : Mesotrophic 49 IIPao-Shan Reservoir : Eutrophic 51 大埔水庫 Hushan reservoir : Oligotrophic 37 翡翠水庫 Hsi-Shih Reservoir : Eutrophic 55 Hsin-Shan Reservoir : Mesotrophic 45 Tseng-Wen Reservoir : Mesotrophic 45 Jen-Yi-Tan Reservoir : Mesotrophic 48 Lan-Tan Reservoir : Eutrophic 51 Pao-Shan Reservoir : Eutrophic 52 Tung-Yung Reservoir : Eutrophic 63 Chiu-Kuei-Shan Reservoir : Eutrophic 61 Houwo : Eutrophic 62 Chu-Shui-Wo Lower Dam : Eutrophic 61 Chu-Shui-Wo Upper Dam : Eutrophic 59 No.1 Chin-Sha Reservoir : Eutrophic 78 Chin-Sha Reservoir : Eutrophic 67 Sheng-Li Reservoir : Eutrophic 70 Pan-Li Reservoir : Eutrophic 61 菱湖 山西 田浦 蓮湖 金湖 太湖 榮湖 金沙 蘭湖 擎天 西湖 Hsiao-Chih Reservoir : Eutrophic 54 七美水庫 Hsi-An Reservoir : Mesotrophic 41 Hsing-Jen Reservoir : Eutrophic 65 Tung-Wei Reservoir : Eutrophic 62 Cheng-Kung Reservoir : Eutrophic 64

Statistics Time : Nov, 2020

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
72
2
Ming-Te Reservoir
66
3
Ching-Mien Reservoir
57

Statistics Time : Nov, 2020

Feng-Shan Reservoir - Water pollution information

Please enter Reservoir station
Legend

No testing data

Oligotrophic

Mesotrophic

Eutrophic

Statistics Time : Nov, 2020

Water monitoring station information

Water Classification

B

  • 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

22°32'27.528",120°23'31.985"

Recent monitoring sample photos

上游周遭環境
下游周遭環境
採樣狀況
水色

Testing information

Statistics Time : Nov, 2020

CTSI
Eutrophic74
SD(m)
0.6
Chl_a(μg/L)
20.8
Total Phosphate(mg/L)
0.499
Sampling Depth(m)
0.5
Atmospheric Temp.(℃)
27.3
Water Temp.(℃)
27.2
pH
7.90
EC(μmho/cm25℃)
559
DO(Electrode)(mg/L)
6.3
DOS(%)
79.2
TB(NTU)
12
SS(mg/L)
16.4
COD(mg/L)
8.2
NH3-N(mg/L)
0.20
TOC(mg/L)
1.70

* ND means the test value is smaller than the method detection limit.

Feng-Shan Reservoir I Station - Carlson trophic state index (CTSI) in the last five years

Feng-Shan Reservoir I Station - Trend chart of Carlson trophic state index (CTSI) in the last five years