WSPC02454

• File Number: 8283.200
• Description: Colorado River Basin-Colorado River Computer Models-Colorado River Decision Support System
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 12/1/1995
• Title: San Juan River Basin Modeling-San Juan Special Water Right Operations
• Water Supply Pro - Doc Type: Report/Study

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Jacket Canyon. These return flows, are re-diverted by other irrigation structures, having their own
decreed water rights in Water District 32. For the CROSS WRPM, the irrigation return flows from
the MVIC system were apportioned to the different SUb-drainage basins using topographic contour
maps and the general location of the MVIC laterals and irrigated lands, as shown in the Definite
Plan Report (DPR) for the Dolores Project. The location of the return flows was determined in
relation to other structures included in the WRPM.

City of Cortez

Historically, the physical facilities of the MVIC system (Main Canal No.1) were used for
the carriage of Dolores River water decreed for municipal purposes by the City of Cortez. The
City's water rights are listed in the following table. After the construction of McPhee Reservoir,
these diversions are carried through the Dolores Tunnel and are recorded by the Division Engineer
under WOlD 320680. These water rights are all senior to the rights of the MVIC.

NAME

ADJUDICATION
DATE

APPROPRIATION
DATE

ADMINISTRA nON
NUMBER

PIIIO.NT

Main Canal No. 1
Main Canal No. 1
Main Canal No. 1
Main Canal No. 1

02,01-1892
02-01-1892
02-01-1892
02-01,1892

05-31-1879
04-15,1880
05-31,1882
05-31,1883

10743.00000
11063.00000
11839.00000
12204,00000

1.1 cfs
1.1 cfs
1.0 cfs
1.0 cfs

The Montezuma Water ComDanv

The MVIC system was also historically used for the transbasin delivery of municipal water
for the Montezuma Water Company, the company that provide domestic water service to the rural
areas of the Montezuma Valley Dutside of the City of Cortez. The Montezuma Water Company
holds a number of senior direct flow water rights on the Dolores River, as shown below. After
completion of the Dolores Project, these diversions are made through the Dolores Tunnel and are
recorded by the Division Engineer under WOlD 710627 for diversions from the Dolores River and
under WOlD 322001 as the receiving structure in Water District 32.

NAME ADJUDICATION APPROPRIATION ADMINISTRATION PIIIO.NT
DATE DATE NUMBER
Dolor Wat Div Hdgt 02-01-1892 05-01-1881 11444.00000 0.50 cfs
Dolor Wat Div Hdgt 02,01,1892 05,10,1881 11453.00000 0.50 cfs
Dolor Wat Div Hdgt 03-22-1963 11-25,1885 30667.13113 10.00 cfs
Dolor Wat Div Hdgt 12-31-1973 07-11,1973 45117.00000 1 .00 cfs

The 10 cfs water right shown above was transferred from the Main Canal No.1, owned by the
MVIC. As part of this transfer, the Montezuma Water Company was also guaranteed a delivery
of additional storage water from the MVIC's Groundhog Reservoir. With completion of the Dolores
Project, this storage agreement was superseded by an agreement for storage in McPhee Reservoir.

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