Wyoming State Water Plan, Wyoming Water Development Office
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Powder/Tongue River Basin Water Plan
Technical Memoranda

SUBJECT: Appendix A
Irrigation Diversion Operation and Description
LITTLE GOOSE CREEK

PREPARED BY: HKM Engineering Inc.

DATE: March 2002


LITTLE GOOSE CREEK

BURN CLEUCH DITCH DIVERSION
COLORADO COLONY DITCH DIVERSION
GERDEL DITCH DIVERSION
LAST CHANCE DITCH DIVERSION
PERALTA DITCH DIVERSION & MOUNTAIN SUPPLY (PERALTA) DIVERSION DITCH


LITTLE GOOSE CREEK DRAINAGE
INTRODUCTION

BACKGROUND

Little Goose Creek flows out of the east slope of the Bighorn Mountains, sandwiched between Piney Creek drainage and the East Fork of Big Goose Creek to the north. In Sheridan, it joins Big Goose Creek, which runs north to join the Tongue east of Ranchester. Little Goose Creek transfers much Big Goose Creek stored water in via transbasin diversion ditches like the Peralta, Cross Creek, and Park Diversion ditches though it has some storage in Willits and Fordyce Tepee No. 1 reservoirs.

CHARACTERISTICS

State Engineer.s Office water commissioners estimate the instream losses in Little Goose Creek to be a maximum of 10 percent by its confluence with Big Goose Creek.

Available reservoir water in Little Goose Creek drainage helps to mitigate water shortages.

In addition, irrigators today tend toward more conservation of the water they can use, which often materializes as new sprinkler irrigation. This has the effect of reducing return flows to the creek. Partially as a result, Little Goose Creek typically goes into regulation every year.

In years of ample water, water commissioners/hydrographers divert 15-20 cfs into Little Goose Creek drainage from the Big Goose Creek drainage via the Peralta and Park Diversion ditches to enhance Little Goose flows.

USAGE

Little Goose Creek.s diversions are used primarily for agricultural irrigation but also supply stock and industrial demands.

Regulation

Water commissioners estimate that regulation is imposed on Little Goose drainage diversions with the following timing:

Wet Year Average Year Dry Year
End of July Mid-July End of June

Though these times provide the general timing of the imposition of regulation, water commissioners begin regulation when Little Goose Creek.s stream flow drops below 60 cfs at the mouth of the canyon.

Agriculture

Growers in Little Goose Creek drainage tend to plant acreage in the following pattern:

The grains (usually barley or oats) are used to rejuvenate the soil after approximately five years of alfalfa/grass growth. Corn is used as a silage crop.

Irrigation Practices

Type of irrigation Percentage of irrigated land
Ditch-flood 65
Gated Pipe 15
Sprinkler 20
Note: Much of the flow cited in the following memoranda will depend in large part upon storage water imported from the Big Goose Creek drainage.

The typical irrigation season runs from April 15-May 1 (depending on whether the spring runoff is delayed by colder weather) to early/mid October (depending on when the first snows fall and the ground freezes). Post-season irrigation is not typically practiced because reservoirs that would provide that water are shut off on the first of October.

Double appropriation

Irrigation water rights with priority dates of March 1, 1945 or earlier are entitled to an additional 1cfs per 70 acres under Wyoming.s surplus water statutes. Whenever the supply in a stream exceeds the amount required to satisfy all existing appropriations established prior to March 1, 1985, the stream is said to be in an excess flow condition and water right holders with priorities between March 2, 1945 and March 1, 1985 may use an additional 1 cfs for each 70 acres irrigated.

On Little Goose Creek, this practice is limited primarily by the condition of ditches. Many of the ditches are not capable of carrying all of the water an irrigator could use.

% of appropriation % of ditches in drainage capable of flow
200 20
150 60
100-150 90
0-100 90

Permitted Uses

Permits granted for water appropriation are granted for specific uses. The following pages contain tables of permits and their associated uses. The following table provides a key to those uses:

Code Use
Chem Chemical
Com Commercial
Cul Culinary
D Domestic
Drl Drilling
Eng Steam Engines
Fire Fire Protection
Fish Fish Propogation
F.C. Flood Control
I Irrigation
Ind Industrial
I.F. Instream Flow
Mech Mechanical
Mfg Manufacturing
Mil Milling
Min Mining
Misc Miscellaneous
Mun Municipal
Oil Oil Refining or Production
P.C. Pollution Control
Power Power Development
R.R. Railroad
Rec Recreational
Ref Refining
Res. Supply Supply Facility for a Reservoir
S Stock
T Transportation

WATER RIGHTS

Two water rights summary tables are provided for each diversion serving irrigation referenced here. The first, included in the body of the diversion synopsis, refers to the rights on record with the State Engineer.s Office and is derived from that office.s Tabulation of Adjudicated Surface Water Rights of the State of Wyoming, Water Division Number Two (Oct. 1999).

Because this rights summary is pulled directly from the SEO Tab, the rights cited follow the SEO.s priority order:

Hierarchy Format of right Example
1 Day, Month, Year 05-15-1884
2 Month and Year 05-00-1884
3 Specified Season and Year Spring 1884
4 Year Only 1884
5 Before Year Before 1884

Board orders or court orders may also establish a specific priority.

Irrigated Lands Water Rights Database

The second table, which follows the diversion synopsis, is taken from the irrigated lands water rights database developed for the basin plan. It can be used as a reference with the following caveats: It only lists water rights associated with the irrigated lands polygons mapped by HKM. The table does not include nonirrigation rights devoted to reservoir supply, municipal, fish propagation, etc. The rights on this table are associated only with those irrigated lands identified through the course of this study, both actively irrigated and currently idle.

Column Heading Key
PerNo Permit Number "Terr" denotes a territorial right.
PerSfx Permit Suffix D = direct flow
E = enlargement
R = reservoir
Facility Name Parantheses denote the former means of conveyance for the water right.
Unit Flow or volume CFS = cubic feet per second
AF = acre-feet
GPM = gallons per minute
SupTyp Supply Type OS = original supply
SS = supplement supply, for lands having an original supply from another source.
Sec = secondary supply, for water stored in a reservoir
Status Status of adjudication Adj = adjudicated
Una = unadjudicated
Source Source water Parantheses denote the permit number of the related storage right.

Schematic for Little Goose stream and diversions:


KEY DIVERSIONS

Diversion: BURN CLEUCH DITCH DIVERSION
Date 29 Aug. 2000
Note: The Burn Cleuch Ditch has returned no flows to Big Goose Creek in recent years, primarily due to construction around Sheridan.
Burn Cleuch Ditch Headgate
Diversion Description: Headgate consists of a single 5.9 x 5.6-foot rectangular wooden gate in concrete slides operated with a Waterman-type screw, mounted in a concrete headwall.
Diversion Location: The Burn Cleuch Ditch diversion is located on the main stem of Little Goose Creek between the confluences of Little Goose with McCormick and Big Goose Creek in Sheridan.

Headgate:
Lat. Long.
N 44° 43' 40.6'' W 106° 56' 37.7''

Flume:
Lat. Long.
N 44° 43' 43.8'' W 106° 56' 43.7''
Conveyance Description: Open channel canal, approximately 5 mi. long.
Direct Flow Water Rights: The summary of direct flow rights follows:

Permit Priority Date Permitted Use Acres Flow (cfs) Cumulative (cfs)
Terr 10-29-1881 D, I, S 31 0.48 0.48
Terr 10-29-1881 D, I, S 48 0.69 1.17
Terr 10-29-1881 D, I, S 105 1.50 2.67
Terr 10-29-1881 D, I, S 139 2.02 4.69
Terr 10-29-1881 D, I, S 609 8.70 13.39
6731E 8-12-77 I 37.41 0.53 13.92
Associated Storage Rights: None
Irrigation Practices: See Little Goose summary.
Return Flows: Estimated percentage of total diversion developing into return flows:

Destination Wet yr. Mid yr. Dry yr.
Big Goose Creek 0 0 0
Losses: 15 percent by the end of the ditch
References: Bill Knapp, water commissioner, State Engineer.s Office, interview, 29 Aug. 2000

Irrigated Lands Water Rights Database
PerNo PerSfx Facility Name Priority Acres Amount Unit SupTyp Status Source
Terr D Burn Cleuch (5 pump points) Oct. 29, 1881 932.8 13.39 CFS OS Adj Little Goose Creek
6731 E Whitney Enlargement Burn Cleuch Aug. 12, 1977 37.41 0.53 CFS OS Adj Little Goose Creek

Name
Source
District
Data
Burn Cleuch Ditch Diversion
Little Goose Creek
4
Total monthly flow in AF
Water Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
1970












1971












1972












1973












1974





0.00 0.00 433.82 647.84 643.02 0.00 1724.68
1975












1976












1977












1978












1979












1980












1981





0.00 541.00 278.00 543.00 393.00 291.00 2046.00
1982





0.00 227.83 519.15 456.92 592.87 96.78 1893.55
1983





0.00 102.66 447.73 537.58 544.17 260.25 1892.39
1984





0.00 101.31 578.60 745.77 828.39 307.62 2561.69
1985





0.00 535.53 522.09 817.10 567.22 164.34 2606.28
1986





0.00 491.58 736.73 460.48 610.99 164.60 2464.38
1987












1988





0.00 267.20 639.81 582.85 96.65 0.00 1586.51
1989





0.00 190.65 551.70 562.02 556.11 252.79 2113.27
1990





0.00


561.05 0.00
1991





0.00 0.00 305.43 571.46 509.02 146.80 1532.71
1992





0.00


557.81 331.87
1993





0.00 100.87 308.02 409.27 425.42 290.40 1533.98
1994





0.00 279.09 531.78 516.46 527.91 305.53 2160.77
1995





0.00 10.18 373.75 370.89 285.70 234.61 1275.13
1996





0.65 235.46 673.18 564.08 635.43 569.40 2678.20
1997





0.00 176.28 269.17 406.59 373.54 108.79 1334.37
1998





0.00 482.82 479.32 615.46 481.43 144.28 2203.31
1999





0.00 0.00 248.36 563.84 539.53 269.75 1621.48
Mean





0.03 220.14 464.51 551.27 512.07 207.31 1954.63
Max





0.65 541.00 736.73 817.10 828.39 569.40 2678.20
Min





0.00 0.00 248.36 370.89 96.65 0.00 1275.13
Notes:
1. Monthly data is from spot measurements in the Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980
2. Zero flow is assumed prior to the first and after the last measurement
3. Monthly data for 1981 is derived from published AF values in the Hydrographer's Annual Reports.

Name
Source
District
Data
Burn Cleuch Ditch Diversion
Little Goose Creek
4
First & Last Dates, Max. Days
Water Year First Date of Measurement Last Date of Measurement Maximum Days Missing
1970


1971


1972


1973


1974 12-Jun 31-Aug 0
1975


1976


1977


1978


1979


1980


1981 01-May 30-Sep 0
1982 15-May 05-Sep 13
1983 28-May 20-Sep 17
1984 24-May 11-Sep 24
1985 07-May 09-Sep 20
1986 16-May 08-Sep 35
1987


1988 18-May 06-Aug 18
1989 23-May 14-Sep 7
1990 15-May 30-Aug 57
1991 06-Jun 12-Sep 9
1992 06-May 30-Sep 69
1993 11-May 28-Sep 23
1994 18-May 20-Sep 7
1995 31-May 15-Sep 16
1996 29-Apr 24-Sep 30
1997 15-May 11-Sep 27
1998 08-May 08-Sep 25
1999 18-Jun 17-Sep 25
Avg 19-May 12-Sep 22
Earliest 29-Apr 06-Aug 0
Latest 18-Jun 30-Sep 69

Notes: 1. Data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980.


KEY DIVERSIONS

Diversion: COLORADO COLONY DITCH DIVERSION
Date 29 Aug. 2000
Colorado Colony Headgate
Note: The Colorado Colony Ditch will entirely divert Little Goose Creek in normal years. More senior rights downstream are normally able to satisfy their appropriations with return flows to Little Goose Creek. In dry years, conservation and sprinkler usage reduce the return flows, requiring water commissioners to allow flow past the Colorado Colony headgate.
Diversion Description: Headgate consists of four, 2.8 x 2-foot rectangular steel gates in steel slides operated with Waterman-type screws, mounted in a concrete-and- rock headwall. The headgate is adjacent to a similarly constructed bypass gate used to control head on the main gates. All gates appear to be in good condition.
Diversion Location: The Colorado Colony Ditch diversion is located on the main stem of Little Goose Creek.

Headgate:
Lat. Long.
N 44° 37' 41.8'' W 107° 1' 44.7''

Flume:
Lat. Long.
N 44° 36' 16.1'' W 107° 2' 20.5''
Conveyance Description: Open channel canal, approximately 15 mi. long.
Direct Flow Water Rights: The summary of direct flow rights follows:

Permit Priority Date Permitted Use Acres Flow (cfs) Cumulative (cfs)
Terr 07-04-1883 I 5869 83.86 83.86
305E 01-14-1898 I 35 0.50 84.36
382E 07-01-1883 I 35 0.50 84.86
3145E 03-08-1915 D, I, S 815.1 11.64 96.50
Note: Colorado Colony Ditch also carries 5.35 cfs of #7 Upper Goose Creek Ditch water.
Associated Storage Rights: Big Horn Reservoir is attached to lands below Colorado Colony. Irrigators on the Colorado Colony Ditch also use Park Reservoir and Cross Creek Reservoir water.
Irrigation Practices: See Little Goose summary.
Return Flows: Estimated percentage of total diversion developing into return flows:

Destination Wet yr. Mid yr. Dry yr.
Big Goose 40 30 20
Losses: Approximately 25 percent by the end of the ditch
References: Bill Knapp, water commissioner, State Engineer.s Office, interview, 29 Aug. 2000

Irrigated Lands Water Rights Database
PerNo PerSfx Facility Name Priority Acres Amount Unit SupTyp Status Source
Terr D Upper Goose Creek (Red Hill Extension, Colorado Colony) Nov. 15, 1881 375 5.35 CFS OS Adj Little Goose Creek
Terr D Colorado Colony July 4, 1883 5868.74 83.86 CFS OS Adj Little Goose Creek
Terr D Big Goose & Beaver (Peralta, Colorado Colony) Aug. 29, 1885 6430 92.01 CFS OS Adj East Fork Big Goose Creek
Terr D Peralta (Colorado Colony, Red Hill, Big Goose & Beaver) Nov. 1, 1885 3971.5 56.7 CFS OS Adj Cross Creek
305 E Enl. Colorado Colony Jan. 14, 1898 35 0.5 CFS OS Adj Little Goose Creek
445 E Enl. Colorado Colony June 15, 1898 6317.8 0
SS Adj Cross Creek
4186 E Enl. Colorado Colony July 10, 1908 5317.24 0
Sec Adj Cross Creek (1352R)
3145 E Enl. Colorado Colony March 8, 1915 815.1 11.64 CFS OS Adj Little Goose Creek
3145 E Enl. Colorado Colony March 8, 1915 728 0
SS Adj Little Goose Creek
4298 E Enl. Peralta (Colorado Colony) Nov. 7, 1921 2049 0
SS Adj Little Goose Creek
5335 E Third Enl. Red Hill (Colorado Colony) Dec. 22, 1942 237 3.36 CFS OS Adj Little Goose Creek
5978 E Enl. Peralta (Colorado Colony) April 14, 1952 844.9 0
SS Adj Cross Creek
5978 E Enl. Peralta (Colorado Colony) April 14, 1952 456.8 6.52 CFS OS Adj Cross Creek
5979 E Enl. Peralta (Colorado Colony) April 14, 1952 693.2 0
SS Adj Little Goose Creek
5979 E Enl. Peralta (Colorado Colony) April 14, 1952 25.72 0.37 CFS OS Adj Little Goose Creek

Name
Source
District
Data
Colorado Colony Ditch Diversion
Little Goose Creek
4
Total monthly flow in AF
Water Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
1970












1971 0.00



0.00 0.00 726.94 3811.04 3657.32 4174.21 1479.27 13848.78
1972 0.00



0.00 0.00 1350.74 5536.66 3415.34 3532.36 2602.91 16438.01
1973 161.85



0.00 0.00 861.62 5345.85 3423.07 4159.53 1653.22 15605.14
1974 0.00



0.00 0.00 1993.39 5591.60 4083.77 3893.95 1884.89 17447.60
1975 0.00



0.00 0.00 37.79 2343.37 3784.86 3992.53 2812.56 12971.11
1976 0.00



0.00 615.87 2535.67 5070.74 4124.03 3807.87 2487.27 18641.45
1977 0.00



0.00 0.00 3295.93 3625.39 2567.80 3055.73 1543.34 14088.19
1978 0.00



0.00 0.00 0.00 0.00 3583.93 2696.53 2448.20 8728.66
1979












1980 0.00



0.00 586.00 3896.00 3244.00 2906.00 2081.00 1226.00 13939.00
1981 0.00



274.00 843.00 2883.00 2112.00 2312.00 1454.00 1572.00 11450.00
1982 0.00



0.00 0.00 2590.00 2620.00 3530.00 3900.00 2380.00 15020.00
1983 0.00



0.00 0.00 580.00 4500.00 4050.00 2970.00 1700.00 13800.00
1984 0.00



0.00 0.00 0.00 2517.84 3796.58 3183.56 1838.23 11336.21
1985 0.00



0.00 0.00 3005.08 3420.78 2989.07 1697.70 822.00 11934.63
1986 0.00



0.00 17.93 3184.59 4084.40 3351.50 3256.33 1295.17 15189.92
1987 0.00



0.00 0.00 4351.00 2954.00 2510.00 2573.00 1810.00 14198.00
1988 0.00



0.00 0.00 2050.00 4090.00 3274.00 1970.00 1005.00 12389.00
1989 0.00



0.00 696.50 3685.80 3236.20 2767.60 2891.70 1626.60 14904.40
1990 0.00



0.00 0.00 865.50 3195.30 3567.60 3064.70 2589.20 13282.30
1991 0.00



0.00 0.00 964.70 2924.80 3157.80 2710.60 1414.60 11172.50
1992 0.00



0.00 785.50 3525.90 2739.70 2373.30 3330.90 2744.20 15499.50
1993 0.00



0.00 0.00 1608.20 2864.60 2821.90 3353.80 3169.50 13818.00
1994 0.00



0.00 0.00 2053.90 3284.30 2908.70 2431.40 1126.50 11804.80
1995 0.00



0.00 96.10 389.90 2149.00 2576.70 3788.50 2554.40 11554.60
1996 0.00



0.00 0.00 781.40 3574.50 3331.50 3309.60 2268.50 13265.50
1997 0.00



0.00 0.00 1013.80 3438.00 3296.20 3005.40 3250.60 14004.00
1998 0.00



0.00 0.00 3540.30 4019.90 3669.50 3444.10 2478.80 17152.60
1999 0.00



0.00 102.00 393.00 2455.00 3443.00 3322.00 1776.00 11491.00
Mean 5.78



9.79 133.68 1863.01 3383.89 3259.75 3108.96 1984.25 13749.10
Max 161.85



274.00 843.00 4351.00 5591.60 4124.03 4174.21 3250.60 18641.45
Min 0.00



0.00 0.00 0.00 0.00 2312.00 1454.00 822.00 8728.66
Notes:
1. Monthly data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980
2. Zero flow is assumed prior to the first and after the last measurement

Name
Source
District
Data
Colorado Colony Ditch Diversion
Little Goose Creek
4
First & Last Dates, Max. Days
Water Year First Date of Measurement Last Date of Measurement Maximum Days Missing
1970


1971 21-May 30-Sep 0
1972 11-May 02-Oct 0
1973 22-May 27-Sep 0
1974 08-May 30-Sep 0
1975 27-May 30-Sep 0
1976 09-Apr 30-Sep 0
1977 01-May 30-Sep 1
1978 01-Jul 30-Sep 0
1979


1980 22-Apr 30-Sep 0
1981 16-Mar 30-Sep 0
1982 01-May 30-Sep 0
1983 23-May 30-Sep 0
1984 04-Jun 30-Sep 0
1985 01-May 30-Sep 0
1986 29-Apr 20-Sep 0
1987 01-May 30-Sep 0
1988 03-May 30-Sep 0
1989 20-Apr 30-Sep 0
1990 23-May 30-Sep 0
1991 03-May 30-Sep 0
1992 15-Apr 30-Sep 0
1993 01-May 30-Sep 0
1994 12-May 30-Sep 0
1995 26-Apr 30-Sep 0
1996 11-May 30-Sep 0
1997 16-May 30-Sep 0
1998 05-May 30-Sep 0
1999 12-Apr 30-Sep 0
Avg 05-May 29-Sep 0
Earliest 16-Mar 20-Sep 0
Latest 01-Jul 02-Oct 1

Notes: 1. Data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980.


KEY DIVERSIONS

Diversion: GERDEL DITCH DIVERSION
Date 29 Aug. 2000
Gerdel Ditch Headgate
Note: The Gerdel Ditch entirely diverts Little Goose Creek at its headgate. Return flows typically put 12-14 cfs back into Little Goose Creek downstream of lands served by the Gerdel Ditch.
Diversion Description: Headgate consists of a single, 3.8 x 3-foot rectangular steel gate in steel slides operated with Waterman-type screw, mounted in a tilting concrete headwall.
Diversion Location: The Gerdel Ditch diversion is located on the main stem of Little Goose Creek between the confluences of Little Goose with Kruse and Jackson creeks.

Headgate:
Lat. Long.
N 44° 41' 30.0'' W 106° 58' 59.0''

Flume:
Lat. Long.
N 44° 41' 30.5'' W 106° 58' 55.5''
Conveyance Description: Open channel canal, approximately 5 mi. long.
Direct Flow Water Rights: The summary of direct flow rights follows:

Permit Priority Date Permitted Use Acres Flow (cfs) Cumulative (cfs)
Terr 04-15-1880 Misc
1.30 1.30
Terr 04-15-1880 I 1 0.02 1.32
Terr 04-15-1880 I 100 1.43 2.75
Terr 04-15-1880 I 125 1.79 4.54
Terr 04-15-1880 I 130 1.86 6.40
Terr 04-15-1880 I 140 2.00 8.40
Terr 04-15-1880 I 140 2.00 10.40
4108E 06-09-20 I 52.8 0.75 11.15
Associated Storage Rights: None
Irrigation Practices: See Little Goose summary.
Return Flows: Estimated percentage of total diversion developing into return flows:

Destination Wet yr. Mid yr. Dry yr.
Burn-Cleuch Ditch 40 40 40
Losses: 15 percent by the end of the ditch
References: Bill Knapp, water commissioner, State Engineer.s Office, interview, 29 Aug. 2000

Irrigated Lands Water Rights Database
PerNo PerSfx Facility Name Priority Acres Amount Unit SupTyp Status Source
Terr D Gerdel (Waldheim Pump System, Argento Pump) April 15, 1880 636 9.1 CFS OS Adj Little Goose Creek
4108 E Enl Gerdel June 9, 1920 52.8 0.75 CFS OS Adj Little Goose Creek

Name
Source
District
Data
Gerdel Ditch Diversion
Little Goose Creek
4
Total monthly flow in AF
Water Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
1970












1971












1972












1973












1974





0.00 0.00 215.05 436.38 410.90 0.00 1062.33
1975












1976












1977












1978












1979












1980












1981





0.00 631.72 856.00 436.00 433.00 431.00 2787.72
1982





0.00 384.83 768.87 475.60 682.88 468.30 2780.48
1983





0.00 44.11 836.65 753.43 511.55 99.31 2245.05
1984





0.00 0.00 324.57 609.72 586.71 155.08 1676.08
1985





0.00 602.74 463.87 544.37 540.99 109.07 2261.04
1986





0.00


634.42 115.27
1987





0.00 345.13 398.33 293.63 446.43 195.19 1687.71
1988





179.54 351.33 633.69 692.80 111.45 0.00 1968.81
1989





0.00 137.34 474.34 553.17 586.62 221.93 1973.40
1990





0.00


433.09 253.82
1991





0.00 0.00 250.23 649.96 632.21 422.00 1954.40
1992





0.00


621.99 485.39
1993





0.00 277.92 527.37 395.10 546.95 291.03 2038.37
1994





0.00 556.79 627.32 635.05 649.11 435.42 2903.69
1995





0.00 0.00 460.99 625.27 675.92 319.00 2081.18
1996





0.53 276.57 552.98 652.54 595.48 433.03 2511.13
1997





0.00 359.92 642.69 629.72 572.25 172.06 2376.64
1998





0.00 365.80 622.51 680.78 616.90 148.00 2433.99
1999





0.00 0.00 283.53 662.72 622.47 306.84 1875.56
Mean





9.00 255.48 525.82 572.13 545.57 253.09 2153.98
Max





179.54 631.72 856.00 753.43 682.88 485.39 2903.69
Min





0.00 0.00 215.05 293.63 111.45 0.00 1062.33
Notes:
1. Monthly data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980
2. Zero flow is assumed prior to the first and after the last measurement
3. Monthly data for Jun-Sep 1981 is derived from published AF values in the Hydrographers Annual Reports.

Name
Source
District
Data
Gerdel Ditch Diversion
Little Goose Creek
4
First & Last Dates, Max. Days
Water Year First Date of Measurement Last Date of Measurement Maximum Days Missing
1970


1971


1972


1973


1974 17-Jun 31-Aug 0
1975


1976


1977


1978


1979


1980


1981 01-May 30-Sep 27
1982 18-May 22-Sep 13
1983 28-May 10-Sep 17
1984 12-Jun 11-Sep 21
1985 01-May 09-Sep 32
1986 05-May 08-Sep 54
1987 13-May 14-Sep 32
1988 20-Apr 06-Aug 21
1989 23-May 14-Sep 5
1990 10-May 24-Sep 62
1991 13-Jun 24-Sep 12
1992 05-May 23-Sep 74
1993 11-May 28-Sep 33
1994 09-May 22-Sep 10
1995 31-May 15-Sep 16
1996 29-Apr 24-Sep 41
1997 15-May 11-Sep 27
1998 08-May 08-Sep 25
1999 18-Jun 17-Sep 25
Avg 17-May 14-Sep 27
Earliest 20-Apr 06-Aug 0
Latest 18-Jun 30-Sep 74

Notes: 1. Data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980.


KEY DIVERSIONS

Diversion: LAST CHANCE DITCH DIVERSION
Date 29 Aug. 2000
Diversion Description: Headgate consists of two, 3.6 x 3-foot rectangular steel gates in steel slides operated with Waterman-type screws, mounted in a steel headwall. Both gates look in good condition and control flow through two, three- foot?diameter corrugated metal pipes.
Last Chance Headgate
Diversion Location: The Last Chance Ditch diversion is located on the main stem of Little Goose Creek, and delivers water to the Kruse Creek headwaters.

Headgate:
Lat. Long.
N 44° 35' 46.4'' W 107° 2' 20.8''
Conveyance Description: Open channel canal, approximately 11 mi. long.
Direct Flow Water Rights: The summary of direct flow rights follows:

Permit Priority Date Permitted Use Acres Flow (cfs) Cumulative (cfs)
Terr 03-20-1888 I, S 30 0.43 0.43
Terr 03-20-1888 I, S 50 0.71 1.14
Terr 03-20-1888 I, S 50 0.71 1.85
Terr 03-20-1888 I, S 150 2.14 3.99
Terr 03-20-1888 I, S 400 5.71 9.70
2324E 01-07-1908 I 90 1.28 10.98
5340E 01-22-1943 I 283 4.04 15.02
6698E 09-22-1977 I 62 0.88 15.90
Note: Last Chance Ditch also carries 5.34 cfs of Upper East Side Ditch and 5.71 cfs of Double Cross #1 water.
Associated Storage Rights: S. K. Johnston owns stored water in Park.
Irrigation Practices: See Little Goose summary.
Return Flows: Estimated percentage of total diversion developing into return flows:

Destination Wet yr. Mid yr. Dry yr.
Kruse Creek 20 20 20
Losses: Approximately 25 percent by the end of the ditch. Last Chance Ditch crosses a number of glacial gravel seams, losing much water in conveyance.
References: Bill Knapp, water commissioner, State Engineer.s Office, interview, 29 Aug. 2000

Irrigated Lands Water Rights Database
PerNo PerSfx Facility Name Priority Acres Amount Unit SupTyp Status Source
Terr D Upper East Side (Last Chance) Dec. 1, 1881 634 9.05 CFS OS Adj Little Goose Creek
Terr D Last Chance May 6, 1885 195 2.78 CFS OS Adj Rock Creek
Terr D Last Chance March 20, 1888 680 9.7 CFS OS Adj Little Goose Creek
Terr D Last Chance, 2nd App. April 20, 1888 75 1.07 CFS OS Adj Rock Creek
255 E Enl. Last Chance May 31, 1897 40 0.55 CFS OS Adj Little Rapid Creek
2324 E Enl. Last Chance Jan. 7, 1908 330 4.71 CFS OS Adj Cross Creek and Little Goose Creek
2324 E Enl. Last Chance Jan. 7, 1908 100 0
SS Adj Little Goose Creek
2324 E Enl. Last Chance Jan. 7, 1908 20 0
SS Adj Cross Creek and Little Goose Creek
13962 D Last Chance Dec. 27, 1915 36 0.51 CFS OS Adj Smith Draw
17133 D Last Chance Sep. 4, 1926 44.5 0.66 CFS OS Adj East Pass Creek
5340 E Enl. Last Chance Jan. 22, 1943 120 0
SS Adj Little Goose Creek
5340 E Enl. Last Chance Jan. 22, 1943 283 4.04 CFS OS Adj Little Goose Creek
5572 E Enl. Last Chance through Park Res. Diversion April 26, 1951 465.1 0
SS Adj East Fork Big Goose Creek
5572 E Enl. Last Chance through Park Res. Diversion April 26, 1951 431.3 6.16 CFS OS Adj East Fork Big Goose Creek
6698 E Clow Enlargement Last Chance Sep. 27, 1977 71 0
SS Adj Little Goose Creek
6698 E Clow Enlargement Last Chance Sep. 27, 1977 61.7 0.88 CFS OS Adj Little Goose Creek

Name
Source
District
Data
Last Chance Ditch Diversion
Little Goose Creek
4
Total monthly flow in AF
Water Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
1970












1971 0.00




0.00 181.90 624.26 1109.16 1627.64 617.63 4160.59
1972 0.00




5.20 56.87 1137.20 1230.35 1286.48 903.93 4620.03
1973 21.54




0.00 73.79 942.23 1307.11 1364.23 592.26 4301.16
1974 0.00




0.00 523.04 1449.12 1459.83 1233.32 810.45 5475.76
1975 0.00




0.00 1.98 11.90 865.98 1296.40 743.19 2919.45
1976 0.00




0.00 4.40 1019.03 1337.06 1355.11 677.81 4393.41
1977 0.00




0.00 786.39 1543.73 1252.96 1151.60 678.21 5412.89
1978 0.00




0.00 0.00 85.67 1259.90 1368.00 966.94 3680.51
1979












1980 0.00




0.00 1289.00 1506.00 462.00 303.00 345.00 3905.00
1981 0.00




325.00 489.00 933.00 718.00 683.00 636.00 3784.00
1982 0.00




0.00 141.00 483.00 1100.00 1570.00 430.00 3724.00
1983 0.00




0.00 0.00 1670.00 1520.00 1300.00 1040.00 5530.00
1984 0.00




0.00 0.00 0.00 1546.08 1556.00 1225.17 4327.25
1985 0.00




0.00 792.84 1067.80 1122.50 991.81 533.07 4508.02
1986 0.00




0.00 983.46 786.10 1191.07 827.23 359.85 4147.71
1987 0.00




233.00 1043.00 919.00 992.00 875.00 467.00 4529.00
1988 0.00




0.00 235.00 1288.00 1292.00 548.00 354.00 3717.00
1989 0.00




0.00 373.60 781.30 901.50 1183.10 822.20 4061.70
1990 0.00




0.00 89.80 388.10 1084.60 1111.10 817.00 3490.60
1991 0.00




0.00 0.00 259.60 1080.30 1159.30 530.30 3029.50
1992 0.00




55.30 1035.80 672.10 753.50 876.10 564.10 3956.90
1993 0.00




0.00 0.00 302.00 366.90 897.90 630.70 2197.50
1994 0.00




0.00 250.00 855.30 1118.60 757.10 605.90 3586.90
1995 0.00




0.00 0.00 143.70 819.70 1063.90 703.50 2730.80
1996 0.00




0.00 17.40 680.10 1217.80 1150.40 654.70 3720.40
1997 0.00




0.00 148.30 288.80 642.20 685.50 565.60 2330.40
1998 0.00




0.00 614.20 827.40 1147.60 1148.00 511.40 4248.60
1999 0.00




0.00 0.00 414.00 1000.00 1076.00 555.00 3045.00
Mean 0.77




22.09 326.10 752.80 1067.81 1087.33 655.03 3911.93
Max 21.54




325.00 1289.00 1670.00 1546.08 1627.64 1225.17 5530.00
Min 0.00




0.00 0.00 0.00 366.90 303.00 345.00 2197.50
Notes:
1. Monthly data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980
2. Zero flow is assumed prior to the first and after the last measurement
3. May & June 1971 data contain interpolated data using the WRDS records.

Name
Source
District
Data
Last Chance Ditch Diversion
Little Goose Creek
4
First & Last Dates, Max. Days
Water Year First Date of Measurement Last Date of Measurement Maximum Days Missing
1970


1971 17-May 30-Sep 6
1972 27-Apr 02-Oct 0
1973 24-May 28-Sep 0
1974 10-May 30-Sep 0
1975 27-May 30-Sep 0
1976 31-May 26-Sep 0
1977 10-May 30-Sep 0
1978 27-Jun 30-Sep 0
1979


1980 01-May 30-Sep 0
1981 12-Apr 30-Sep 0
1982 01-May 30-Sep 0
1983 01-Jun 30-Sep 0
1984 03-Jul 30-Sep 0
1985 01-May 30-Sep 0
1986 05-May 30-Sep 0
1987 21-Apr 30-Sep 0
1988 22-May 30-Sep 0
1989 16-May 30-Sep 0
1990 23-May 30-Sep 0
1991 03-Jun 30-Sep 0
1992 28-Apr 30-Sep 0
1993 09-Jun 30-Sep 0
1994 18-May 30-Sep 0
1995 06-Jun 30-Sep 0
1996 21-May 30-Sep 0
1997 15-May 30-Sep 0
1998 05-May 30-Sep 0
1999 09-Jun 30-Sep 0
Avg 18-May 29-Sep 0
Earliest 12-Apr 26-Sep 0
Latest 03-Jul 02-Oct 6

Notes: 1. Data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980.


KEY DIVERSIONS

Diversion: PERALTA DITCH DIVERSIION and
MOUNTAIN SUPPLY (PERALTA) DIVERSION DITCH
Date 29 Aug. 2000
Diversion Description: Headgate consists of two, 3.5 x 3.5-foot square steel gates in steel slides operated with Waterman-type screws, mounted in a concrete-and-rock throat. One of the gates screws is badly bent.
Mountain Supply Ditch Headgate
Diversion Location: The Peralta Ditch diversion is located on the main stem of Little Goose Creek, and represents the first diversion downstream of the canyon mouth.

Mountain Supply Headgate:
Lat. Long.
N 44° 32' 47.7'' W 107° 12' 37.4''
Mountain Supply Flume:
Lat. Long.
N 44° 32' 54.3'' W 107° 12' 38.9''
Peralta (on Little Goose) Headgate:
Lat. Long.
N 44° 35' 47.6'' W 107° 2' 21.1''
Conveyance Description: Open channel canal, approximately 14 mi. long. Approximately 250 feet of the diversion is piped near the headgate. The conveyance crosses a number of gravel seams, increasing the ditch loss.
Direct Flow Water Rights: The summary of direct flow rights follows:

Permit Priority Date Permitted Use Acres Flow (cfs) Cumulative (cfs)
Terr 11-01-1885 I 23.50 0.34 0.34
Terr 11-01-1885 I 30.00 0.43 0.77
Terr 11-01-1885 I 35.00 0.50 1.27
Terr 11-01-1885 I 40.00 0.57 1.84
Terr 11-01-1885 I 50.00 0.71 2.55
Terr 11-01-1885 I 50.00 0.71 3.26
Terr 11-01-1885 I 70.00 1.00 4.26
Terr 11-01-1885 I 70.50 1.00 5.26
Terr 11-01-1885 I 75.00 1.07 6.33
Terr 11-01-1885 I 80.00 1.14 7.47
Terr 11-01-1885 I 105.00 1.51 8.98
Terr 11-01-1885 I 155.00 2.21 11.19
Terr 11-01-1885 I 160.00 2.28 13.47
Terr 11-01-1885 I 160.00 2.28 15.75
Terr 11-01-1885 I 300.00 4.28 20.03
Terr 11-01-1885 I 320.00 4.57 24.60
Terr 11-01-1885 I 320.00 4.57 29.17
Terr 11-01-1885 I 320.00 4.57 33.74
Terr 11-01-1885 I 320.00 4.57 38.31
Terr 11-01-1885 I 360.00 5.14 43.45
Terr 11-01-1885 I 480.00 6.85 50.30
Terr 11-01-1885 I 518.00 7.40 57.70
238E 03-08-1897 I 55.00 0.78 58.48
381E 07-01-1898 D, I 40.00 0.57 59.05
16007 09-15-1920 I 30.42 0.43 59.48
4298E 11-07-1921 D, I, S 0.00 0.02 59.50
4298E 11-07-1921 I 4.00 0.06 59.56
4298E 11-07-1921 I 20.00 0.28 59.84
4298E 11-07-1921 D, I, S 20.00 0.28 60.12
4298E 11-07-1921 D, I, S 45.00 0.66 60.78
4298E 11-07-1921 D, I, S 53.00 0.78 61.56
4298E 11-07-1921 I 120.00 1.71 63.27
4298E 11-07-1921 I 127.00 1.81 65.08
4298E 11-07-1921 D, I, S 435.00 6.23 71.31
4298E 11-07-1921 I 665.00 9.50 80.81
5600E 02-07-1952 I 100.00 1.43 82.24
5978E 04-14-1952 I 5.00 0.07 82.31
5978E 04-14-1952 I 159.00 2.27 84.58
5978E 04-14-1952 I 292.80 4.18 88.76
5979E 04-14-1952 I 25.72 0.37 89.13
Note: This ditch carries water from Cross Creek (a tributary of Big Goose), the East Fork of Big Goose, and Little Goose. It also carries 1.07 cfs of Red Hill Ditch water. .Peralta Mountain Supply. exists as two separate rights in Clear Creek and Big Goose. Of the two, the Clear Creek right is junior and is used first.
Associated Storage Rights: Individual landowners use water stored in Cross Creek, Park, Martin, and Willits reservoirs.
Irrigation Practices: See Little Goose summary.
Return Flows: Estimated percentage of total diversion developing into return flows:

Destination Wet yr. Mid yr. Dry yr.
Little Goose 25 25 25
Losses: 30 percent by the end of the ditch
References: Bill Knapp, water commissioner, State Engineer.s Office, interview, 29 Aug. 2000

Irrigated Lands Water Rights Database
PerNo PerSfx Facility Name Priority Acres Amount Unit SupTyp Status Source
Terr D Red Hill (Peralta) April 30, 1883 75 1.07 CFS OS Adj Little Goose Creek
Terr D Big Goose & Beaver (Peralta, Colorado Colony) Aug. 29, 1885 6430 92.01 CFS OS Adj East Fork Big Goose Creek
Terr D Peralta (Colorado Colony, Red Hill, Big Goose & Beaver) Nov. 1, 1885 3971.5 56.7 CFS OS Adj Cross Creek
Terr D Peralta (Big Goose & Beaver) Nov. 1, 1885 70.5 1 CFS OS Adj East Fork Big Goose Creek
Terr D Peralta (Colorado Colony, Red Hill, Big Goose & Beaver) Nov. 1, 1885 3971.5 56.7 CFS OS Adj Cross Creek
238 E Enl. Peralta March 8, 1897 55 0.78 CFS OS Adj Cross Creek
381 E Enl. Peralta July 1 1898 40 0.57 CFS OS Adj Cross Creek
16007 D Peralta Sep. 15, 1920 30.42 0.43 CFS SS Adj North Prong Hurlburt Creek
4298 E Enl. Peralta (Colorado Colony) Nov. 7, 1921 1489 21.33 CFS OS Adj Little Goose Creek
4298 E Enl. Peralta (Colorado Colony) Nov. 7, 1921 2049 0
SS Adj Little Goose Creek
5601 E Enl. Peralta Feb. 7, 1952 200 0
SS Adj Little Goose Creek
5979 E Enl. Peralta (Colorado Colony) April 14, 1952 25.72 0.37 CFS OS Adj Little Goose Creek
5978 E Enl. Peralta (Colorado Colony) April 14, 1952 456.8 6.52 CFS OS Adj Cross Creek
5979 E Enl. Peralta (Colorado Colony) April 14, 1952 693.2 0
SS Adj Little Goose Creek

Name
Source
District
Data
Mountain Supply (Peralta) Diversion
Cross Creek
4
Total monthly flow in AF
Water Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
1970












1971






0.00 0.00 1806.99 2492.43 627.17 4926.59
1972






0.00 626.50 1243.79 1885.68 1233.52 4989.49
1973






0.00 437.75 1556.17 2073.92 718.61 4786.45
1974






0.00 1099.24 2354.58 2512.46 674.78 6641.06
1975






0.00 294.39 2290.81 2804.43 895.66 6285.29
1976






0.00 1105.90 2362.71 2438.87 1340.83 7248.31
1977






0.00 2109.42 1253.02 2142.35 739.44 6244.23
1978






0.00 0.00 1839.09 1058.38 2651.70 5549.17
1979












1980






0.00 1178.00 2518.00 2043.00 1058.00 6797.00
1981






271.00 1304.00 1229.00 1342.00 1801.00 5947.00
1982






0.00 287.00 1880.00 2670.00 968.00 5805.00
1983






0.00 1410.00 2910.00 2290.00 1080.00 7690.00
1984






0.00 1609.00 2277.00 2095.00 1276.00 7257.00
1985






0.00 1536.16 2066.93 1134.26 0.00 4737.35
1986






0.00 1728.38 1703.87 2413.46 389.66 6235.37
1987






0.00 479.00 672.00 1529.00 584.00 3264.00
1988






0.00 789.00 2702.00 1129.00 428.00 5048.00
1989






0.00 877.20 1885.70 2234.10 833.40 5830.40
1990






0.00 1239.50 1039.00 1884.40 2076.50 6239.40
1991






0.00 1768.60 1575.60 1682.50 0.00 5026.70
1992






198.20 1650.50 1774.30 1836.20 2242.10 7701.30
1993






0.00 1523.70 950.60 2617.10 2132.50 7223.90
1994






0.00 1093.70 2091.40 1765.90 315.50 5266.50
1995






0.00 0.00 804.00 2930.90 1582.10 5317.00
1996






0.00 2245.10 1592.10 2438.70 1380.40 7656.30
1997






0.00 2231.20 1542.70 1790.10 1695.60 7259.60
1998






50.40 1808.60 2047.00 1500.20 1967.50 7373.70
1999






0.00 2178.30 2171.00 2891.90 776.30 8017.50
Mean






18.56 1164.65 1790.69 2058.08 1123.87 6155.84
Max






271.00 2245.10 2910.00 2930.90 2651.70 8017.50
Min






0.00 0.00 672.00 1058.38 0.00 3264.00
Notes:
1. Monthly data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980
2. Zero flow is assumed prior to the first and after the last measurement
3. July 1971 data contains interpolated data using the WRDS records.

Name
Source
District
Data
Mountain Supply (Peralta) Diversion Ditch
Cross Creek
4
First & Last Dates, Max. Days
Water Year First Date of Measurement Last Date of Measurement Maximum Days Missing
1970


1971 01-Jul 30-Sep 5
1972 10-Jun 30-Sep 0
1973 25-Jun 18-Sep 0
1974 11-Jun 22-Sep 0
1975 19-Jun 17-Sep 0
1976 07-Jun 28-Sep 0
1977 01-Jun 30-Sep 0
1978 01-Jul 30-Sep 0
1979


1980 13-Jun 30-Sep 0
1981 04-May 30-Sep 0
1982 25-Jun 17-Sep 0
1983 15-Jun 30-Sep 0
1984 05-Jun 30-Sep 0
1985 03-Jun 29-Aug 0
1986 11-Jun 08-Sep 0
1987 10-Jun 30-Sep 0
1988 05-Jun 25-Sep 0
1989 01-Jun 20-Sep 0
1990 20-Jun 30-Sep 0
1991 05-Jun 30-Aug 0
1992 12-May 30-Sep 0
1993 11-Jun 30-Sep 0
1994 06-Jun 30-Sep 0
1995 13-Jul 30-Sep 0
1996 03-Jun 30-Sep 0
1997 05-Jun 30-Sep 0
1998 26-May 30-Sep 0
1999 11-Jun 30-Sep 0
Avg. 09-Jun 24-Sep 0
Earliest 04-May 29-Aug 0
Latest 13-Jul 30-Sep 5

Notes: 1. Data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980.

Name
Source
District
Data
Peralta Ditch Diversion
Little Goose Creek
4
Total monthly flow in AF
Water Year Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
1970












1971





0.00 783.15 1420.36 944.96 792.24 170.70 4111.41
1972





0.00 189.42 1970.97 999.89 962.78 533.04 4656.10
1973





0.00 2.34 1587.29 1203.41 827.50 972.89 4593.43
1974





0.00 529.78 1743.67 992.33 769.39 550.81 4585.98
1975





0.00 0.00 60.85 485.81 1026.45 746.56 2319.67
1976












1977





0.00 966.64 1117.69 742.71 599.29 178.51 3604.84
1978





0.00 0.00 0.00 0.00 220.54 814.61 1035.15
1979












1980





100.00 1601.00 1446.00 358.00 142.00 236.00 3883.00
1981





142.00 573.00 1211.00 444.00 232.00 248.00 2850.00
1982





0.00 229.00 1370.00 1010.00 1040.00 624.00 4273.00
1983





0.00 0.00 1200.00 1020.00 580.00 298.00 3098.00
1984





0.00 0.00 70.69 971.22 493.51 295.20 1830.62
1985





0.00 744.17 1534.50 774.90 429.09 147.85 3630.51
1986





0.00 302.21 1411.86 792.79 569.64 423.62 3500.12
1987





0.00 1297.00 1042.00 559.00 707.00 356.00 3961.00
1988





52.00 496.00 1494.00 681.00 363.00 159.00 3245.00
1989





0.00 0.00 1534.00 708.90 675.00 431.50 3349.40
1990





0.00 0.00 312.00 758.60 663.90 400.20 2134.70
1991





0.00 27.30 653.80 765.40 359.40 152.80 1958.70
1992





36.50 607.00 985.60 905.50 713.90 690.40 3938.90
1993





0.00 375.30 558.40 452.50 759.40 622.30 2767.90
1994





0.00 431.80 758.80 382.00 357.30 324.30 2254.20
1995





0.00 0.00 0.00 433.40 955.80 456.20 1845.40
1996





0.00 87.00 786.30 778.60 566.30 414.20 2632.40
1997





0.00 334.80 284.20 715.30 738.60 596.30 2669.20
1998





0.00 864.20 1034.30 928.00 738.30 1049.40 4614.20
1980





0.00 4.66 577.00 772.00 690.00 357.00 2400.66
Mean





12.24 386.88 969.08 725.19 628.60 453.68 3175.68
Max





142.00 1601.00 1970.97 1203.41 1040.00 1049.40 4656.10
Min





0.00 0.00 0.00 0.00 142.00 147.85 1035.15
Notes:
1. Monthly data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980
2. Zero flow is assumed prior to the first and after the last measurement

Name
Source
District
Data
Peralta Ditch Diversion
Little Goose Creek
4
First & Last Dates, Max. Days
Water Year First Date of Measurement Last Date of Measurement Maximum Days Missing
1970


1971 17-May 30-Sep 0
1972 29-May 02-Oct 0
1973 21-May 27-Sep 0
1974 20-May 30-Sep 0
1975 18-Jun 30-Sep 0
1976


1977 10-May 30-Sep 0
1978 17-Aug 30-Sep 0
1979


1980 22-Apr 30-Sep 0
1981 17-Apr 30-Sep 0
1982 13-May 30-Sep 0
1983 08-Jun 30-Sep 0
1984 23-Jun 30-Sep 0
1985 01-May 30-Sep 0
1986 17-May 30-Sep 0
1987 01-May 30-Sep 0
1988 19-Apr 30-Sep 0
1989 01-Jun 30-Sep 0
1990 18-Jun 30-Sep 0
1991 20-May 30-Sep 0
1992 27-Apr 30-Sep 0
1993 11-May 30-Sep 0
1994 18-May 30-Sep 0
1995 12-Jul 30-Sep 0
1996 21-May 30-Sep 0
1997 05-May 30-Sep 0
1998 05-May 30-Sep 0
1999 28-May 30-Sep 0
Avg 22-May 29-Sep 0
Earliest 17-Apr 27-Sep 0
Latest 17-Aug 02-Oct 0

Notes: 1. Data is from Hydrographer's Annual Reports for years 1980 and later, and from WRDS for years prior to 1980.