月 日 ダム水位
(EL m)
有効
貯水率
(%) 
  放流量
(m3/s) 
  日雨量
(mm/日)
 備考
9/21 487.34 9.3 0.43 1  
9/20 487.33 9.3 0.52 0  
9/19 487.35 9.3 0.55 0  
9/18 487.30 9.2 0.49 5  
9/17 487.28 9.2 0.49 2  
9/16 487.27 9.1 0.49 0  
9/15 487.25 9.1 0.44 1  
9/14 487.19 9.0 0.44 2  
9/13 487.14 8.9 0.46 1  
9/12 487.05 8.7 0.47 13  
9/11 487.04 8.7 0.74 0  
9/10 487.14 8.9 0.88 0  
9/9 486.91 8.4 0.67 15  
9/8 486.90 8.4 0.67 5  
9/7 486.94 8.5 0.69 0 総貯水量18.0%
9/6 486.59 7.8 0.59 43  
9/5 486.48 7.6 0.67 4  
9/4 486.56 7.8 0.78 6  
9/3 486.71 8.0 0.78 0  
9/2 486.86 8.3 0.78 0  
9/1 487.01 8.6 0.78 0  
8/31 487.15 8.9 0.79 0  
8/30 487.29 9.2 0.79 0  
8/29 487.39 9.4 0.94 28  
8/28 487.67 9.9 1.39 0  
8/27 488.23 11.1 1.80 0  
8/26 488.84 12.4 1.80 0  
8/25 489.43 13.6 1.80 0  
8/24 490.01 14.9 1.80 0  
8/23 490.57 16.2 1.80 0
8/22 491.10 17.4 1.80 0  
8/21 491.63 18.7 1.88 0  
8/20 492.18 20.0 2.00 0  
8/19 492.68 21.3 2.00 0  
8/18 493.03 22.1 2.00 19  
8/17 493.56 23.5 2.08 1  
8/16 494.15 25.0 2.32 0  
8/15 494.81 26.8 2.54 3  
8/14 495.49 28.8 2.59 0  
8/13 496.14 30.7 2.60 0  
8/12 496.77 32.6 2.60 0  
8/11 497.40 34.6 2.60 0  
8/10 498.01 36.5 2.60 0  
8/9 498.60 38.5 2.66 0  
8/8 499.22 40.5 2.79 0  
8/7 499.83 42.5 2.63 0  
8/6 500.35 44.3 2.50 0  
8/5 500.76 45.7 2.50 1  
8/4 501.23 47.4 2.34 0  
8/3 501.67 49.0 2.33 0  
8/2 502.13 50.7 2.50 13  
8/1 502.60 52.4 2.50 1  
7/31 503.09 54.3 2.70 0  
7/30 503.64 56.5 2.99 0  
7/29  504.20 58.7 2.99 0  
7/28 504.74 60.9 2.75 1  
7/27 505.19 62.8 2.50 0  
7/26 505.63 64.6 2.75 0  
7/25 506.10 66.6 2.26 0 放流制限解除
7/24 506.27 67.3 1.22 1  
7/23 506.36 67.7 1.10 0  
7/22 506.43 68.0 1.10 0  
7/21 506.49 68.3 1.14 3  
7/20 506.54 68.5 1.03 1  
7/19 506.50 68.3 0.87 15  
7/18 506.49 68.3 1.02 0  
7/17 506.53 68.6 1.20 0  
7/16 506.56 68.6 1.20 0  
7/15 506.54 68.5 1.20 4  
7/14 506.46 68.1 1.05 23  
7/13 506.32 67.5 0.87 4  
7/12 506.32 67.5 0.98 1  
7/11 506.35 67.7 1.14 2  
7/10 506.33 67.6 1.16 17  
7/9 506.26 67.3 1.10 13  
7/8 506.31 67.5 1.10 1  
7/7 506.35 67.7 0.93 0  
7/6 506.34 67.6 0.89 1  
7/5 506.32 67.6 0.99 0  
7/4 506.31 67.5 0.99 0  
7/3 506.25 66.9 0.94 0  
7/2 506.17 66.5 1.00 0  
7/1 506.02 66.2 1.00 4  
6/30 505.81 65.4 1.00 16  
6/29 505.61 64.5 0.86 0  
6/28 505.19 62.8 0.95 51  
6/27 505.20 62.8 1.20 3  
6/26 505.30 63.2 1.24 0  
6/25 505.42 63.7 1.30 0 放流制限期間
6/24 505.53 64.2 1.30 0  
6/23 505.60 64.5 1.41 7  
6/22 505.72 65.0 1.50 7  
6/21 505.85 65.5 1.33 0  
6/20 505.90 65.7 1.06 0  
6/19 505.90 65.7 1.17 0  
6/18 505.93 65.9 1.40 0  
6/17 505.92 65.8 1.40 0  
6/16 505.66 64.7 1.12 35  
6/15 505.48 64.0 1.10 9  
6/14 505.55 64.3 1.11 1  
6/13 505.64 64.6 1.20 4  
6/12 505.73 65.0 1.28 0  
6/11 505.84 65.5 1.40 6  
6/10 505.97 66.0 1.40 0  
6/9 506.04 66.3 1.19 18  
6/8 506.05 66.4 1.14 1  
6/7 506.13 66.7 1.24 0  
6/6 506.21 67.1 1.30 0  
6/5 506.27 67.3 1.30 0  
6/4 506.29 67.4 1.30 0  
6/3 506.22 67.1 1.30 0  
6/2 505.93 65.9 1.38 47  
6/1 505.98 66.1 1.54 0  
5/31 506.18 66.9 1.60 0  
5/30 506.37 67.7 1.64 0  
5/29 506.52 68.4 1.82 23  
5/28 506.77 69.5 2.00 0  
5/27 507.06 70.7 2.00 0  
5/26 507.33 71.9 1.74 0  
5/25 507.54 72.8 1.64 0  
5/24 507.74 73.7 1.73 1  
5/23 507.95 74.9 1.79 7  
5/22 508.17 75.7 1.90 1  
5/21 508.43 76.8 2.00 0  
5/20 508.70 78.1 2.28 0 普通期切替 
5/19 509.06 79.7 2.80 8  
5/18 509.46 81.6 2.80 0  
5/17 509.86 83.5 2.80 0  
5/16 510.25 85.3 2.79 0  
5/15 510.61 87.0 3.14 12  
5/14 511.09 89.4 3.59 0  
5/13 511.60 91.9 3.60 2  
5/12 512.07 94.2 2.66 0  
5/11 512.29 95.3 1.39 0  
5/10 512.31 95.4 1.08 0  
5/9 512.34 95.6 1.50 0  
5/8 512.46 96.2 2.08 9  
5/7 512.62 97.0 2.20 18  
5/6 512.85 98.2 2.20 0  
5/5 513.06 99.2 1.64 0  
5/4 513.13 99.6 1.25 0  
5/3 513.19 99.9 1.14 0 放流開始 
5/2 513.21 100.0 1.20 0  
5/1 513.20 100.0 1.08 2