WSP00241

• File Number: 8430.500
• Description: Platte River-Platte River-Water User Groups and Conservancy Districts-Denver Water
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 6/1/1957
• Title: Denver Board of Water Comm Reports 1957-Report on Comprehensive Studies of the Denver Raw Water System-Part 1
• Water Supply Pro - Doc Type: Report/Study

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PURPOSE OF RESERVOIRS

sideration the variaus elements outlined above. Many operational
studies were made in connection with the Blue River system in
coordination with the Moffat Tunnel system and the South Platte
system in order to provide background for the exercising of judg-
ment in respect to such major matters as the estimation of the
amount of regulatory and holdover reservoir capacity required,
This involves also consideration of the amount of reserve water
in terms of mean annual requirements that should be in storage
at the time of maximum reservoir drawdown during a period of
deficient water supply. The desirable amount of reserve is re-
lated, in turn, to the vagaries of nature and possible accident to
key raw water facilities,

In connection with the reservoir studies the economics of
increasing the capacity of the existing Gross Reservoir were de-
termined. The storage capacity that should be provided at Dillon
for the regulation of Blue River supplies was studied, with par-
ticular emphasis on the amount of storage that should be created
in its first stage of development. An appraisal was also made of
the reservoir potential which exists at the Two Forks site on the
South Platte and its role in the over-all water supply picture.