WSP01847

• File Number: 8449.900
• Description: Bear Creek
• State: CO
• Basin: South Platte
• Date: 4/1/1979
• Author: Evergreen Sanit.
• Title: Water Resources Study, Evergreen Water System
• Water Supply Pro - Doc Type: Publication

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and 7.84 cfs has been abandoned. The Denver Board of Water Commissioners

~wns the remaining 19.67 cfs. Neither the use nor point of diversion

of the remainder, 19.67 cfs, has been changed. It is impossible to

determine what may be done with this right in the future, but a reasonable

assumption is that the right will eventually be transferred to municipal

use. In the event of this, undoubtedly the rate of diversion will

be reduced with the transfer. Reasonably, the amount will be reduced

to something in proportion to historic use on the land irrigated by

the Simonton Ditch. A review of the 1952 through 1962 diversion

records by the ditch indicated an average of 635 acres was irrigated.

200 acres was dried up in the Evergreen transfer and 155 acres dried

by the State of Colorado transfer, leaving 280 acres. Average consumptive

use of irrigation for the Simonton Ditch was calculated to be 1.64 feet

per year. Based on review of the diversion records, the irrigation

efficiency is estimated to be 42%. Applying this efficiency and the

calculated consumptive use to the remaining 280 acres, it was assumed

that the Denver Water Board may expect to be able to divert at least

4.50 cfs under their Simonton water right. Utilizing this rate, the

Evergreen share of the No.2 right is 47%.

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The most senior..,ater right in District 9 is the McBroom Ditch "

right for 11.58 cfs. 10.6 cfs of this right is owned by the City

of Englewood. This right has never been changed from its original

use and point of diversion and has historically been util ized to meet

Englewood's increased demands during the irrigation season. For

purposes of this study, it is assumed that this right wi 11 be used

for lawn and golf course irrigation and therefore will be exercised

for 10.6 cfs during the irrigation season only.

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There are various opinions that when, and if, the McBroom Ditch was

transferred or changed to strictly municipal uses, the decreed amount would

be reduced significantly. No legal opinion was obtained concerning

this change, therefore, it would be speculation to assume this will

happen. However, some have suggested it may be reduced to 6.0 cfs.

For comparison in this study, both the 10.6 cfs and 6.0 cfs figures

were used in the calculation without expressing an opinion one way

or the other as to what the Ci ty of Englev!ood or the Water Court wi 11

do.

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