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
5/28	505.89	65.7	↓	1.05	→	0
5/27	505.94	65.9	↓	1.05	↓	0
5/26	505.99	66.1	↓	1.09	↑	0
5/25	506.04	66.3	→	1.08	↑	0
5/24	506.04	66.3	↑	1.00	→	2
5/23	506.01	66.2	↑	1.00	→	0
5/22	505.87	65.6	↑	1.00	↓	19
5/21	505.66	64.7	↓	1.45	↓	39
5/20	505.88	65.7	↓	2.48	↓	0
5/19	506.42	68.0	↓	3.28	↓	0
5/18	507.01	70.5	↓	3.41	↓	0
5/17	507.61	73.2	↓	3.59	→	0
5/16	508.22	75.9	↓	3.59	↑	0
5/15	508.79	78.5	↓	3.46	↑	0
5/14	509.33	81.0	↓	3.40	↓	3
5/13	509.85	83.4	↓	3.55	↓	3
5/12	510.40	86.0	↓	3.83	↑	0
5/11	510.99	88.9	↓	3.83	↑	0
5/10	511.52	91.5	↓	3.58	↓	0
5/9	512.00	93.9	↓	3.69	↑	3
5/8	512.45	96.1	↓	3.26	↑	10
5/7	512.80	97.9	↓	2.20	↑	0
5/6	512.94	98.6	↓	1.48	↓	0
5/5	513.04	99.1	↓	1.49	→	0
5/4	513.12	99.5	↓	1.49	↓	3
5/3	513.19	99.9	↓	1.54	↓	1
5/2	513.21	100.0	↑	1.55	↑	10
5/1	513.18	99.8	↓	1.06	↓	23
4/30	513.19	99.9	↓	1.07	↑	0
4/29	513.20	100.0	→	1.05	↓	1
4/28	513.20	100.0	→	1.10	↓	0
4/27	513.20	100.0	→	1.34	↑	10
4/26	513.21	100.0	→	1.00	↓	0
4/25	513.20	100.0	→	1.19	↓	0
4/24	513.21	100.0	→	1.44	↑	0
4/23	513.21	100.0	→	1.29	↑	1
4/22	513.20	100.0	→	1.20	↓	0
4/21	513.19	100.0	→	1.30	↓	0
4/20	513.20	100.0	→	1.64	↓	0
4/19	513.21	100.0	→	2.01	↓	0
4/18	513.21	100.0	→	2.07	↑	0
4/17	513.20	100.0	→	2.05	↓	0
4/16	513.21	100.0	→	2.52	↓	0
4/15	513.21	100.0	→	2.60	↓	2
4/14	513.21	100.0	→	2.77	↑	0
4/13	513.21	100.0	↓	2.52	↓	0
4/12	513.22	100.1	→	3.03	↓	0
4/11	513.23	100.1	→	3.96	↓	3
4/10	513.23	100.1	↑	4.01	↑	4
4/9	513.20	100.0	↑	2.65	↑	0	満水位
4/8	513.09	99.4	↑	2.21	↑	0
4/7	512.79	97.9	↑	1.94	↓	0
4/6	512.24	95.1	↑	2.05	↑	0
4/5	511.67	92.2	↑	2.20	→	1
4/4	511.14	89.6	↑	2.20	→	8
4/3	510.77	87.8	↑	2.20	↓	0
4/2	510.07	84.5	↑	2.21	↓	21
4/1	509.22	80.5	↑	2.24	↓	6
3/31	508.36	76.5	↑	2.26	↓	4
3/30	507.75	73.8	↑	2.28	↓	0
3/29	507.35	72.0	↑	2.31	→	0
3/28	507.05	70.7	↑	2.31	↑	0
3/27	506.67	69.0	↑	1.91	↑	0
3/26	506.18	66.9	↑	1.35	↓	9
3/25	505.90	65.7	↑	1.36	→	0
3/24	505.69	64.9	↑	1.36	→	0
3/23	505.49	64.0	↑	1.36	↑	0
3/22	505.40	63.6	↑	1.35	→	0
3/21	505.32	63.3	↑	1.35	→	0
3/20	505.14	62.6	↑	1.35	→	2
3/19	504.92	61.6	↑	1.35	→	1
3/18	504.85	61.4	↓	1.35	→	0
3/17	504.89	61.5	↓	1.35	→	0
3/16	504.95	61.8	↓	1.35	→	0
3/15	505.01	62.0	↓	1.35	→	0
3/14	505.07	62.3	↓	1.35	→	0
3/13	505.12	62.5	↓	1.35	→	0	0cm
3/12	505.17	62.7	↓	1.35	→	0	1cm
3/11	505.19	62.8	↑	1.35	→	0	3cm
3/10	505.18	62.7	↑	1.35	↓	3	3cm
3/9	505.15	62.6	→	1.43	↓	0	0cm
3/8	505.11	62.6	↑	1.55	→	2	4cm
3/7	505.01	62.0	↑	1.55	→	1	8cm
3/6	504.92	61.6	↑	1.55	→	0	12cm
3/5	504.88	61.5	↑	1.55	→	3	15cm
3/4	504.76	61.0	↑	1.55	→	7	20cm
3/3	504.61	60.4	↑	1.55	↑	6	15cm
3/2	504.37	59.4	↑	1.42	↑	0	18cm
3/1	503.94	57.7	↑	1.35	→	0	22cm
2/28	503.22	54.8	↑	1.35	→	3	26cm
2/27	502.55	52.3	↑	1.35	→	0	31cm
2/26	502.08	50.5	↑	1.35	→	0	33cm
2/25	501.62	48.8	↑	1.35	→	9	39cm
2/24	501.42	48.1	↑	1.35	→	0	43cm
2/23	501.26	47.5	↑	1.35	→	0	46cm
2/22	501.15	47.1	↓	1.35	→	0	49cm
2/21	501.23	47.4	↓	1.35	↑	0	53cm
2/20	501.30	47.6	↑	0.80	↑	0	57cm
2/19	501.16	47.1	↑	0.34	→	0	67cm
2/18	500.97	46.5	↑	0.34	→	7	54cm
2/17	500.78	45.8	↑	0.34	→	0	56cm
2/16	500.53	44.9	↑	0.34	→	0	60cm
2/15	500.30	44.1	↑	0.34	→	0	64cm
2/14	500.17	43.7	↑	0.34	→	0	68cm
2/13	500.07	43.4	↑	0.34	↓	0	73cm
2/12	499.99	43.1	↓	0.73	↓	1	76cm
2/11	500.10	43.5	↓	1.35	→	2	81cm
2/10	500.27	44.0	↓	1.35	→	0	86cm
2/9	500.43	44.6	↓	1.35	→	5	93cm
2/8	500.58	45.1	↓	1.35	→	4	82cm
2/7	500.73	45.6	↓	1.35	→	0	83cm
2/6	500.88	46.2	↓	1.35	→	1	84cm
2/5	501.02	46.7	↓	1.35	→	0	97cm
2/4	501.18	47.2	↓	1.35	→	0	102cm
2/3	501.34	47.8	↓	1.35	→	1	108cm
2/2	501.48	48.3	↓	1.35	→	8	108cm
2/1	501.62	48.8	↓	1.35	→	8	102cm
1/31	501.75	49.3	↓	1.35	→	9	95cm
1/30	501.87	49.7	↓	1.35	→	10	88cm
1/29	502.00	50.2	↓	1.35	→	2	74cm
1/28	502.13	50.7	↓	1.35	→	1	73cm
1/27	502.25	51.1	↓	1.35	→	3	75cm
1/26	502.37	51.6	↓	1.35	→	1	78cm
1/25	502.47	52.0	↓	1.35	→	6	76cm
1/24	502.56	52.3	↓	1.35	→	3	74cm
1/23	502.65	52.6	↓	1.35	→	2	75cm
1/22	502.71	52.9	↓	1.35	→	14	70cm
1/21	502.76	53.1	↓	1.35	→	5	59cm
1/20	502.79	53.2	→	1.35	→	5	38cm
1/19	502.81	53.2	→	1.35	→	1	38cm
1/18	502.80	53.2	↑	1.35	→	0	40cm
1/17	502.73	52.9	↑	1.35	→	3	43cm
1/16	502.56	52.3	↑	1.35	→	12	46cm
1/15	502.45	51.9	↓	1.35	→	16	66cm
1/14	502.57	52.3	↓	1.35	→	5	65cm
1/13	502.67	52.7	↓	1.35	→	3	68cm
1/12	502.78	53.1	↓	1.35	→	12	75cm
1/11	502.86	53.4	↓	1.35	→	17	47cm
1/10	502.96	53.8	↓	1.35	→	0	55cm
1/9	503.07	54.2	↓	1.35	→	2	63cm
1/8	503.15	54.6	↓	1.35	→	13	34cm
1/7	503.24	54.9	↓	1.35	→	0	38cm
1/6	503.33	55.3	↓	1.35	→	8	38cm
1/5	503.39	55.5	↓	1.35	→	4	31cm
1/4	503.45	55.7	↓	1.35	→	3	42cm
1/3	503.48	55.8	↓	1.35	→	13	29cm
1/2	503.51	56.0	→	1.35	→	0	28cm
R8/1/1	503.52	56.0	↑	1.35	→	3	31cm