Wyoming State Water Plan, Wyoming Water Development Office
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Green River Basin Water Plan
Technical Memoranda

SUBJECT: Green River Basin Plan
Irrigation Diversion Operation and Description

PREPARED BY: Pat Tyrrell, Jennifer Russell, States West Water Resources


Water Division IV

District 5


Alford Ditch, LaBarge Creek

Diversion Description: Diversion consists of a single 4' x 4' slide gate mounted on a bridge structure. The narrowing of the creek created by the bridge assists in the diversion of water into the ditch.1

Diversion Location:
Source: LaBarge Creek, Trib. Green River
Section, Township, Range: Lot 54, 26, 113

Conveyance Description: Open Channel Canal, approximately 2 miles in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
05-13-1886 Terr. Irrigation 1,030.00 14.70 14.70
04-28-1899 413E Irrigation 117.00 1.67 16.37

Storage Rights: None.

Estimated Canal Losses: Typical (10%).1

Irrigation Practices: Lands are flood irrigated.1

Crop Types / Consumptive Use: Lands are native grass hay and pasture.1

Return Flows: Return flows are delivered to LaBarge Creek near Phillips and Reel Ditch.2

Other Operational Information: The canal is typically turned on the first of May and off in mid-July.1

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Interview, May 5, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Alford Ditch, LaBarge Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980









1981 12.55 771.67 15.85 943.14 2.71 166.63



1982









1983









1984









1985









1986 6.59 405.20 30.70 1,826.78 14.03 862.67 2.57 158.02 0.01 0.60
1987 8.58 527.56 5.78 343.93





1988









1989









1990 15.75 968.43 7.86 467.70 3.07 188.77



1991 10.03 616.72 22.81 1,357.29 13.99 860.21 3.07 188.77 7.65 455.21
1992 14.21 873.74 9.32 554.58 5.84 359.09 2.64 162.33 0.17 10.12
1993 10.76 661.56 18.97 1,128.90 8.03 493.51 0.09 5.61 3.11 185.30
1994

11.11 660.81 3.73 229.27



1995



16.97 1,043.44 1.60 98.38

1996 1.47 90.39 29.39 1,748.83 24.88 1,529.81 0.00 0.00

1997 1.75 107.60 17.60 1,0427.27 16.06 987.49 2.24 137.73

1998



17.01 1,045.90




Averages: 9.08 558.10 16.94 1,007.92 11.48 706.07 1.74 107.26 2.74 162.81
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:
1980: 5/14, 7 cfs; 5/30, 10 cfs; 6/13, 40 cfs.

1981: 4/17, 5 cfs; 5/11, 10 cfs; 6/12, 23 cfs; 7/21, 3 cfs; 8/10, off; 10/2, 5 cfs.

1986: 4/17, off; 5/6, 2 cfs (est); 5/19, 1 cfs (est); 6/2, 28.0 cfs; 6/18, 35 cfs (est); 7/14, 15 cfs (est); 7/31, 5 cfs (est); 9/3, off.

1987: 4/27, 10 cfs (est); 5/25, 8 cfs (est); 6/23, 5 cfs (est); 7/14, 4 cfs (est).

1989: 7/21, 8/21, off.

1990: (all est): 4/17, 12.0, 5/16, 18.0 cfs; 6/14, 7.5 cfs; 8/8, off.

1991: 5/6, 9.5 cfs (est); 5/21, 10.6 cfs; 6/10, 25 cfs (est); 7/9, 20.2 cfs; 8/5, off; 9/25, 12.5 cfs (est).

1992: 4/23, 12.0 cfs (est); 5/7, 16.0 cfs (est); 5/27, 12.8 cfs; 6/16, 9.0 cfs (est); 7/15, 6.0 cfs (est); 9/11, off.

1993: 5/11, 15.0 cfs (est); 5/25, 16.0 cfs (est); 6/21, 21.0 cfs (est); 7/12, 11.0 cfs (est); 7/30, 8/17, 8/26, off; 9/30, 5.5 cfs (est).

1994: 5/23, 12.0 cfs (est); 6/3, 12.0 cfs (est); 6/20, 11.5 cfs (est); 7/29, off; 8/30, off.

1995: 4/27, 5/12, 5/28, off; 6/26, 23 cfs; 7/7, 22 cfs; 7/25, 13.3 cfs; 8/11, 0.5 cfs (est); 9/12, off.

1996: 5/9, 5/16, 5/24, off; 6/7, 20 cfs (est); 6/12, 25 cfs (est); 6/28, 43.3 cfs; 7/10, 40 cfs (est); 7/30, 8/16, off.

1997: 4/17, off; 5/21, 0.5 cfs; 6/24, 24 cfs; 7/18, 15 cfs (est); 7/24, 15 cfs; 8/14, 1 cfs (est).

1998: 4/30, off; 6/12, 40 cfs (est); 7/10, 20 cfs (est); 7/24, 17 cfs (est); 7/31, off; 8/31, 0.5 cfs (est).

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.


Anderson and Howard Ditch, LaBarge Creek

Diversion Description: Diversion consists of two 5' wide slide gates.1

Diversion Location:
Source: LaBarge Creek, Trib. Green River
Section, Township, Range: 4, 26, 114

Conveyance Description: Open Channel Canal, approximately 15 miles in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
05-01-1879 Terr. Irrigation 100.00 1.32 1.32 POD/MOC change from a portion of Miller, Baker, and Burdick Ditch
06-01-1880 Terr. Irrigation 250.00 3.56 4.88 POD/MOC change from a portion of Miller No. 1 Ditch
03-15-1894 669 Irrigation 927.35 13.23 18.11 Supplementary Supply for 60.0 acres with Original supply from Muddy Creek
10-04-1898 370E Irrigation 160.00 2.28 20.39
10-04-1898 371E Irrigation 160.00 2.28 22.67
09-21-1899 464E Irrigation 360.00 5.14 27.81
09-04-1900 583E Irrigation 175.00 2.49 30.30
04-01-1901 643E Irrigation 40.00 0.57 30.87 POD/MOC change from a portion of Baker, Miller & Burdick Ditch
09-02-1901 772E Irrigation 40.00 0.57 31.44 POD/MOC change from a portion of Bushnell Ditch
10-06-1952 5655E Irrigation 741.06 10.58 42.02
04-22-1970 6369E Irrigation 210.00 3.00 45.02

Storage Rights: None.

Estimated Canal Losses: Greater than typical (up to 60%) losses are experienced in the first few miles of the ditch. Losses then gradually reduce to typical (10%)1

Irrigation Practices: Approximately 10 acres are irrigated by a sprinkler line; remaining lands are flood irrigated.1

Crop Types / Consumptive Use: Approximately 10 acres are alfalfa hay; remaining lands are native grass hay and pasture.1

Return Flows: Approximately 50% of return flows are delivered to Muddy Creek above Fontenelle Reservoir, and 50% are delivered to LaBarge Creek near Alford Ditch.2

Other Operational Information: The canal is typically turned on the first of May and off in mid-July.1

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Interview, May 5, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Anderson and Howard Ditch, LaBarge Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980









1981 4.84 297.60 7.51 446.88 7.91 486.37 8.00 491.90 8.00 476.03
1982









1983









1984









1985









1986 44.02 2,706.68 87.85 5,227.44 30.70 1,887.67



1987 21.32 1,310.84 21.09 1,254.92





1988









1989





7.66 470.91

1990

27.14 1,615.14 20.91 1,285.65



1991 10.44 641.93 44.46 2,645.55 38.80 2,385.72 14.14 869.43 3.39 201.72
1992 42.36 2,604.61 42.88 2,551.54 18.38 1,130.14 12.42 763.68 3.49 207.67
1993





8.03 493.75

1994 46.37 2,851.01 34.94 2,079.31





1995 37.42 2,300.87 77.67 4,621.69 73.34 4,509.50 40.47 2,488.40 13.75 818.18
1996 37.56 2,309.47 113.90 6,777.52 77.62 4,772.67 48.15 2,960.63 10.91 649.19
1997



62.72 3,856.50



1998










Averages: 30.54 1,877.88 50.83 3,024.44 41.30 2,539.28 19.84 1,219.81 7.91 470.56
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:
1981: 5/11, 7 cfs; 7/21, 8 cfs; 8/10, 8 cfs; 10/2, 8 cfs.

1986: 4/17, off; 5/6, off; 6/2, 109.0 cfs; 6/13, 95 cfs (est); 7/14, 36.9 cfs; 7/31, off.

1987: 4/27, 4 cfs (est); 5/25, 30 cfs (est); 6/23, 28 cfs (est).

1989: 7/21, 20.0 cfs (est); 8/21, 8.0 cfs (est).

1990: (all est): 5/16, 30.0 cfs; 6/14, 28.0 cfs; 8/8, 16.0.

1991: 5/21, 23.5 cfs (est); 6/10, 45.0 cfs (est); 7/9, 48.6 cfs; 8/5, 18.0 cfs (est); 9/25, off.

1992: 5/7, 56.0 cfs (est); 5/27, 50.4 cfs; 6/16, 46.0 cfs (est); 7/15, 15.5 cfs (est); 9/11, 10.0 cfs (est).

1993: 5/25, 35.0 cfs (est); 7/12, 36.0 cfs (est); 7/30, 35.0 cfs (est); 8/17, 8/26, off.

1994: 5/11, 41.7 cfs (arrive), 70.7 cfs (depart); 5/23, 70 cfs; 6/3, 60 cfs (est); 6/20, 49 cfs (est).

1995: 5/12, 50 cfs (est); 6/26, 86 cfs (est); 7/7, 86.1 cfs; 8/16, 35.5 cfs; 9/12, 38 cfs (est).

1996: 5/9, 26 cfs; 5/24, 54.1 cfs; 6/12, 131.8 cfs; 6/17, 124.6 cfs; 7/10, 84.5 cfs; 7/30, 61 cfs; 8/16, 46 cfs; 9/9, 39.9 cfs.

1997: 4/17, off; 6/24, 79.8 cfs; 7/24, 56.2 cfs; 8/14, 52.2 cfs.

1998: 4/30, off; 7/10, 70.2 cfs; 7/24, 45.6 cfs; 7/31, 46.5 cfs; 9/18, 29.6 cfs.

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.


LaBarge Number 2 Ditch, LaBarge Creek

Diversion Description: Diversion consists of a single 36" slide gate mounted on a piece of CMP.1

Diversion Location:
Source: LaBarge Creek, Trib. Green River
Section, Township, Range: 19, 26, 112

Conveyance Description: Open Channel Canal, approximately 2 miles in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
07-06-1889 Terr. Irrigation 119.00 1.70 1.70 POD/MOC change from a portion of Phillips & Reel Ditch
08-01-1889 Terr. Irrigation 292.00 4.17 5.87
05-01-1891 Terr. Irrigation 480.00 6.85 12.72
07-01-1969 6341E Irrigation 196.00 2.80 15.52

Storage Rights: None.

Estimated Canal Losses: Typical (10%)1

Irrigation Practices: Lands are flood irrigated.1

Crop Types / Consumptive Use: Lands are native grass hay and pasture.1

Return Flows: Return flows are delivered to LaBarge Creek at Green River.2

Other Operational Information: The canal is typically turned on the first of May and off in mid-July.1

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Interview, May 5, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

LaBarge Number 2 Ditch, LaBarge Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980









1981









1982









1983









1984









1985









1986

24.00 1,428.10 4.78 293.91 4.12 253.33

1987 27.85 1,712.43 16.40 975.87





1988









1989





3.84 236.10

1990

25.83 1,536.99 11.74 721.86



1991

9.22 548.63 8.34 512.81 1.50 92.23 3.67 218.38
1992 12.26 753.84 13.55 806.28 6.50 399.67 2.64 162.33

1993





2.58 158.64 1.60 95.21
1994



3.97 244.11 2.55 156.79

1995



35.19 2,163.75 26.11 1,605.44

1996 34.54 2,123.78 38.61 2,297.45 8.02 493.13



1997 12.82 788.27 28.90 1,719.67 29.27 1,799.74 14.52 892.80

1998 26.81 1,648.48 45.99 2,736.60 12.96 796.88 25.21 1,550.10


Averages: 22.86 1,405.36 25.31 1,506.20 13.42 825.10 9.23 567.53 2.64 156.79
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:
1986: 5/26, 42 cfs (est); 7/14, off; 7/31, 8 cfs (est); 9/3, 10 cfs (est).

1987: 4/27, 25 cfs (est); 5/25, 30 cfs (est); 6/23, 12 cfs (est); 7/14, off.

1989: 7/21, 9.0 cfs (est); 8/21, 4.5 cfs (est).

1990: 5/16, 25.0 cfs (est); 6/14, 28.7 cfs; 8/8, off.

1991: 5/21, 4.5 cfs (est); 6/10, 8.5 cfs (est); 7/9, 12.4 cfs; 8/5, off; 9/25, 6.0 cfs (est).

1992: 4/23, off; 5/7, 12.0 cfs (est); 6/16, 15.0 cfs (est); 7/15, 6.0 cfs (est); 9/11, off.

1993: 5/11, 6.0 cfs (est); 7/30, off; 8/17, 3.0 cfs (est); 8/26, 4.0 cfs (est); 9/30, off.

1994 (all est): 6/20, 6.0 cfs; 7/29, 3.0 cfs; 8/30, 2.5 cfs.

1995: 7/5, 45 cfs; 8/18, 30 cfs (est); 8/28, 20 cfs (est).

1996: 5/3, 30 cfs (est); 5/23, 40.6 cfs; 6/24, 40 cfs (est); 7/15, off; 8/12, 12 cfs (est).

1997 (all est): 4.17, 1.5 cfs; 4/30, 4 cfs; 6/27, 35 cfs; 7/31, 25 cfs; 8/19, 25 cfs.

1998: 4/28, 4.8 cfs; 6/5, 50 cfs (est); 6/24, 45.8 cfs; 7/21, off; 8/19, 30 cfs (est); 9/10, 35 cfs (est).

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.


Red Gap Ditch, LaBarge Creek

Diversion Description: Diversion consists of a single 24" slide gate mounted on a piece of CMP.1

Diversion Location:
Source: LaBarge Creek, Trib. Green River
Section, Township, Range: Lot 54, 26, 113

Conveyance Description: Open Channel Canal, approximately 1 mile in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
05-31-1900 2629 Irrigation 345.00 4.92 4.92 Permitted Name: Gap Ditch
05-13-1920 15761 Irrigation 178.00 2.54 7.46

Storage Rights: None.

Estimated Canal Losses: Typical (10%)1

Irrigation Practices: Lands are flood irrigated.1

Crop Types / Consumptive Use: Lands are native grass hay and pasture.1

Return Flows: Return flows are delivered to LaBarge Creek near Phillips and Reel Ditch.2

Other Operational Information: The canal is typically turned on the first of May and off in mid-July.1

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Interview, May 5, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Red Gap Ditch, LaBarge Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980









1981









1982









1983









1984









1985









1986 10.85 667.14 24.55 1,460.83 4.91 301.90 0.00 0.00

1987 7.34 451.32 7.90 470.08





1988









1989









1990 14.80 910.02 11.69 695.60 7.27 447.01



1991 6.86 421.80 14.19 844.36 10.24 629.63



1992 10.63 653.61 6.66 396.30 0.76 46.73



1993 6.13 376.92 13.13 781.29 5.26 323.42 0.00 0.00 0.00 0.00
1994

6.58 391.54 1.95 119.90 0.00 0.00

1995 4.16 255.79 22.29 1,326.35 21.55 1,325.06 2.19 134.66

1996 1.89 116.21 17.99 1,070.48 28.68 1,763.46 5.61 344.95

1997 1.85 113.75 19.14 1,138.91 22.38 1,376.09



1998 13.43 825.78 32.28 1,920.79 32.63 2,006.34 16.39 1,007.78


Averages: 7.79 479.23 16.04 954.23 13.56 833.96 4.03 247.90 0.00 0.00
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:
1986: 4/17, 2 cfs (est); 5/6, 2 cfs (est); 5/19, 13.6 cfs; 6/2, 21.6 cfs; 6/18, 30 cfs (est); 7/14, 3 cfs (est); 7/31, 9/3, off.

1987 (all est): 4/27, 6 cfs; 5/25, 8 cfs; 6/23, 8 cfs; 7/14, 6 cfs.

1989: 7/21, 8/21, off.

1990 (all est): 4/17, 11.0 cfs; 5/16, 16.0 cfs; 6/14, 12.0 cfs; 8/8, 4.0 cfs.

1991: 5/6, 6.0 cfs (est); 5/21, 8.0 cfs (est); 6/10, 14.5 cfs; 7/9, 15.0 cfs (est); 8/5, 9/25, off.

1992: 4/23, 8.0 cfs (est); 5/7, 12.0 cfs (est); 5/27, 10.0 cfs (est); 6/16, 7.0 cfs (est); 7/15, 9/11, off.

1993: 5/11, 6.5 cfs (est); 5/25, 10.0 cfs (est); 6/21, 15.0 cfs (est); 7/12, 7.0 cfs (est); 7/30, 8/17, 8/26, 9/30, off.

1994 (all est): 5/23, 10.5 cfs; 6/3, 8.5 cfs; 6/20, 6.0 cfs; 7/29, 8/30, off.

1995: 4/27, 5/12, off; 6/26, 29 cfs; 7/7, 29 cfs (est); 7/25, 15.9 cfs; 8/11, 1 cfs (est); 9/12, off.

1996: 5/9, off; 5/16, 3 cfs (est); 6/7, 3 cfs (est); 6/28, 36.5 cfs; 7/10, 30 cfs (est); 7/30, 25 cfs (est); 8/16, 1 cfs (est).

1997: 4/17, off; 5/21, 0.5 cfs (est); 6/24, 25.7 cfs; 7/18, 25 cfs (est); 7/24, 20 cfs (est); 8/14, off.

1998 (all est): 4/30, off; 6/12, 35 cfs; 7/10, 30 cfs; 7/24, 35 cfs; 7/31, 35 cfs; 8/31, off.

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.


Steed Ditch, LaBarge Creek

Diversion Description: Diversion consists of a single 24" slide gate mounted on a piece of CMP.1

Diversion Location:
Source: LaBarge Creek, Trib. Green River
Section, Township, Range: Lot 41, 26, 113

Conveyance Description: Open Channel Canal, approximately 1 mile in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
05-01-1889 Terr. Irrigation 240.00 3.43

08-01-1889 Terr. Irrigation 28.00 0.40
POD/MOC change from a portion of LaBarge No. 2 Ditch
05-18-1898 414E Irrigation 543.38 7.77

07-17-1953 5695E Irrigation 91.75 1.31

07-01-1969 6340E Irrigation 10.75 0.15

Storage Rights: None.

Estimated Canal Losses: Typical (10%)1

Irrigation Practices: Lands are flood irrigated.1

Crop Types / Consumptive Use: Lands are native grass hay and pasture.1

Return Flows: Return flows are delivered to Green River at LaBarge Creek.2

Other Operational Information: The canal is typically turned on the first of May and off in mid-July.1
Sources:
1) Loren Smith, Wyoming State Engineer's Office, Interview, May 5, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Steed Ditch, LaBarge Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980 5.50 338.18







1981









1982









1983









1984









1985









1986









1987









1988









1989





1.77 108.77

1990

8.55 508.76 5.25 322.81



1991

10.60 630.74 9.75 599.50



1992 9.59 589.67 9.09 540.89 3.52 216.44



1993 7.01 431.40



2.02 120.20

1994



1.57 96.25 1.02 62.91

1995



5.49 337.57 14.49 862.21

1996 0.82 50.42 13.71 815.80 5.51 338.80



1997



10.96 673.90 0.14 8.3

1998 0.49 30.13 19.66 1,169.85 22.70 1,395.77 7.01 417.12


Averages: 4.68 287.96 12.32 733.21 8.09 497.63 4.41 263.26

Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:
1980: 5/14, 10 cfs; 5/30, 9 cfs; 6/13, 12 cfs.

1986: 5/2, 36 cfs (est); 7/14, 7/31, 9/3, off.

1989: 7/21, 8.5 cfs (est); 8/21, off.

1990 (all est): 5/16, 14.0 cfs; 6/14, 8.5 cfs; 8/8, 3.0 cfs.

1991: 5/21, 4.0 cfs (est); 6/10, 9.8 cfs; 7/9, 14.5 cfs (est); 8/5, 9/25, off.

1992: 4/23, off; 5/7, 10.0 cfs (est); 6/16, 10.0 cfs (est); 7/15, 3.0 cfs (est); 9/11, off.

1993: 5/11, 6.0 cfs (est); 5/25, 8.5 cfs (est); 7/30, off; 8/17, 3.5 cfs (est); 8/26, 3.5 cfs (est).

1994: 6/20, 4.8 cfs (est); 7/29, off; 8/30, 2.0 cfs (est).

1995 (all est): 5/12, 30 cfs; 7/5, off; 8/18, 20 cfs; 8/28, 15 cfs.

1996: 5/3, 5/23, off; 6/24, 20 cfs (est); 7/15, off; 8/12, 15 cfs (est).

1997 (all est): 4/17, 2 cfs; 4/30, 2 cfs; 6/27, 25 cfs; 7/31, 0.5 cfs; 8/19, off.

1998: 4/28, off; 6/5, 1 cfs (est); 6/24, 35.8 cfs; 7/21, 20 cfs; 8/19, 4 cfs; 9/10, 5 cfs.

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.