Analysis of Colorado-Big Thompson Project Operation With Respect to East Slope Diversions and Non-Charge Deliveries

• Description: For the River Colorado Water Conservancy District
• State: CO
• Basin: South Platte
• Basin: Colorado Mainstem
• Water Division: 1
• Date: 10/1/2000
• Author: Helton & Williamsen, P.C.
• Title: Analysis of Colorado-Big Thompson Project Operation with Respect to East Slope Diversions and Non-charge Deliveries
• Water Supply Pro - Doc Type: Report/Study

TABLE 2
ALVA B. ADAMS TUNNEL AT EAST PORTAL
UNITS OF 1000 AC -FT
Water Year
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Total
1947
-
24.2
33.3
13.6
-
-
-
-
-
-
19.7
33.2
0.5
3.4
1.3
0.0
4.7
1948
0.8
0.6
0.6
0.4
0.4
0.2
0.0
0.0
3.4
2.2
0.7
0.0
9.3
1949
0.6
1.0
0.3
0.2
0.4
2.3
8.2
0.7
0.9
1.9
1.1
0.0
17.6
1950
0.0
0.0
0.0
0.0
0.0
0.0
4.9
11.9
7.9
1.2
0.4
0.1
26.4
1951
0.4
1.3
1.2
0.6
1.7
12.6
16.2
6.9
9.6
2.7
3.0
4.1
60.3
1952
5.9
4.9
9.5
7.4
1.1
1.0
0.9
8.4
3.2
14.6
3.1
3.3
63.3
1953
8.3
21.8
21.0
15.8
8.2
3.7
5.9
16.7
30.5
25.2
19.6
15.9
192.6
1954
19.3
22.8
14.9
17.7
27.3
26.6
31.4
32.8
33.2
34.0
26.2
24.7
310.9
1955
25.9
25.5
27.9
25.8
25.3
18.0
16.6
6.6
22.3
21.2
16.7
19.1
251.0
1956
17.7
19.8
18.2
25.1
27.8
23.2
11.4
5.5
13.5
12.0
17.6
20.8
212.4
1957
23.1
22.7
27.1
28.1
28.5
22.7
6.7
0.2
0.5
5.3
9.7
22.3
196.7
1958
19.5
18.2
25.2
14.0
26.2
13.5
1.9
2.5
11.2
24.5
29.4
30.6
216.7
1959
30.7
33.0
28.2
21.1
23.3
22.5
16.0
0.0
17.8
28.6
21.2
24.0
266.4
1960
24.9
27.5
30.2
22.4
19.3
12.0
13.9
2.4
13.7
26.2
27.1
26.0
245.6
1961
25.4
24.3
23.5
22.6
25.4
16.0
14.5
0.0
9.4
13.2
8.4
9.8
192.5
1962
12.7
17.0
20.7
19.8
15.7
9.6
13.4
14.1
29.1
18.6
24.2
11.0
205.9
1963
28.6
32.4
28.8
26.1
28.7
24.1
27.0
19.4
27.5
17.3
14.4
25.2
299.5
1964
28.2
30.8
30.8
28.6
31.1
23.0
25.3
17.2
21.0
31.3
26.0
22.6
315.9
1965
25.6
27.7
25.6
23.2
28.4
12.3
19.7
2.9
1.5
9.7
11.9
13.1
201.6
1966
17.9
22.2
24.6
19.5
18.2
10.2
18.8
17.5
27.3
23.4
22.5
30.1
252.2
1967
27.6
31.2
26.8
27.9
33.3
20.6
22.4
1.1
4.6
27.2
14.7
17.6
255.0
1968
14.4
22.1
26.7
22.0
21.4
13.8
11.7
1.7
17.3
14.9
15.0
18.2
199.2
1969
15.2
18.3
21.9
20.8
13.6
9.6
3.1
0.9
10.2
26.0
12.8
18.4
170.8
1970
16.6
19.9
20.3
23.7
26.0
19.3
18.8
0.0
10.4
18.1
13.2
15.3
201.6
1971
17.7
14.7
12.6
15.0
18.6
12.8
10.9
3.0
33.2
25.7
11.4
20.5
196.1
1972
18.1
23.9
29.2
27.0
29.3
13.1
9.8
12.4
17.7
20.9
13.0
20.1
234.6
1973
20.8
27.6
24.3
24.0
16.0
19.5
15.2
7.9
31.4
17.1
6.9
7.9
218.6
1974
11.8
18.4
25.2
18.0
18.9
12.2
22.6
17.2
29.6
26.4
24.9
26.4
249.6
1975
17.5
24.6
28.1
23.4
22.7
15.6
25.8
4.4
6.7
23.6
20.6
22.3
235.3
1976
24.0
29.9
30.9
21.5
23.1
11.8
12.2
9.7
24.0
20.0
26.8
29.8
263.7
1977
31.0
25.8
29.8
25.7
30.8
24.3
17.8
20.4
28.9
15.2
15.0
19.5
284.2
1978
18.4
28.2
28.2
27.9
31.0
19.2
16.0
6.7
12.5
30.1
25.9
25.2
269.3
1979
25.0
29.2
22.5
19.9
22.6
17.3
8.5
0.0
4.6
12.5
10.1
12.6
184.8
1980
12.8
14.8
17.8
20.0
18.3
8.6
4.9
1.9
12.2
19.1
14.5
15.2
160.1
1981
18.1
16.6
24.4
27.1
23.6
16.2
17.0
14.3
28.1
27.8
24.1
24.4
261.7
1982
22.0
29.9
29.9
26.6
29.9
19.2
28.7
3.6
8.8
14.2
11.4
15.5
239.7
1983
11.6
15.2
19.4
20.9
18.6
5.0
1.2
0.1
17.7
26.4
14.0
9.8
159.9
1984
15.1
26.9
11.9
18.5
21.1
5.6
2.5
12.6
31.2
24.9
15.5
15.1
200.9
1985
15.0
18.1
16.2
20.5
26.5
29.3
33.8
31.9
31.9
27.0
20.0
10.9
281.1
1986
17.1
24.5
24.1
22.1
26.3
32.6
32.9
19.8
32.9
18.6
12.6
14.9
278.4
1987
17.1
30.5
25.6
18.4
13.6
31.4
24.4
12.9
24.0
27.5
6.0
10.7
242.1
1988
15.6
18.2
23.6
18.1
26.8
15.6
24.9
22.2
26.3
28.5
27.3
26.0
273.1
1989
23.3
24.7
24.3
19.8
13.2
9.8
19.6
18.9
30.5
33.7
30.7
27.7
276.2
1990
31.9
33.3
32.8
29.9
16.4
4.5
9.9
3.3
10.0
7.0
7.3
15.9
202.2
1991
4.9
28.6
27.5
24.7
14A
20.8
13.7
3.8
13.7
12.3
18.7
7.6
190.7
1992
28.4
26.9
26.9
21.2
14.7
5.8
18.2
15.7
11.5
12.9
8.5
6.9
197.6
1993
22.3
29.0
26.1
21.6
0.3
5.3
21.6
6.1
16.6
28.8
21.7
14.6
214.0
1994
13.6
27.8
25.8
19.1
12.9
2.4
11.7
15.0
32.1
30.2
28.1
25.2
243.9
1995
25.6
28.1
31.0
24.7
24.6
2.3
17.0
0.2
22.0
26.8
11.3
10.3
223.9
1996
12.7
13.6
13.2
12.5
6.3
9.1
32.0
27.2
32.1
22.1
16.2
6.5
203.5
1997
22.9
17.2
21.8
22.1
11.3
15.9
32.5
29.4
29.1
8.8
9.2
8.9
229.1
1998
15.0
27.2
26.6
15.4
1.9
0.8
4.8
16.9
32.1
33.4
20.9
2.4
197.4
Average
18.0
21.9
22.2
19.9
18.9
13.8
15.7
9.9
18.8
19.7
15.6
15.9
207.3
Maximum
31.9
33.3
32.8
29.9
33.3
32.6
33.8
32.8
33.2
34.0
30.7
30.6
315.9
Minimum
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.5
1.2
0.4
0.0
4.7
1955 -199a Data
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Total
Average
Maximum
Minimum
20.1
31.9
4.9
24.2
33.3
13.6
24.7
32.8
11.9
22.1
29.9
12.5
21.0
33.3
0.3
14.9
32.6
0.8
16.6
33.8
1.2
9.8
31.9
0.0
19.7
33.2
0.5
21.3
33.7
5.3
17.2
30.7
6.0
17.7
30.6
2.4
229.4
315.9
159.9
1983 -1998 Data
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Total
Average
Maximum
Minimum
Total
18.3
31.9
4.9
292.1
24.4
33.3
13.6
389.8
23.6
32.8
11.9
376.8 _
20.6
29.9
12.5
329.5
15.6
26.8
0.3
248.9
12.3
32.6
0.8
196.2
18.8
33.8
1.2
300.7
14.8
31.9
0.1
236.0
24.6
32.9
10.0
393.7
23.1
33.7
7.0
368.9
16.8
30.7
6.0
268.0
13.3
27.7
2.4
213.4
225.9
281.1
159.9
3,614.0
Note: The value for October of water year 1998 was obtained from the Colorado Division of Water Resources Streamflow Data
Remaining values were obtained from USGS records.
Hatton d Wlllismsan, P.C. C706 . CBTMONTHOPii.xts, Month Summary, 912521x10