C153719 Feasibility Study

• Contract/PO #: C153719
• Contractor Name: Johnstown, Town of
• Contract Type: Loan
• Water District: 13
• County: Larimer
• County: Weld
• Bill Number: SB 94-029
• Loan Projects - Doc Type: Feasibility Study

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Population growth of 2.5 % per year is the middle growth projection range that was
used in Johnstown's Master Plan Update, Water System Improvements (RBD 1984).
The growth projection had its genesis in the Town's EPA 201 Facilities Plan Study.
Although the method of determining the 2.5 % per year growth rate was not carried
forward to the RBD study, the projection appears reasonable. The growth rate
between 1980 and 1996 is 1.08% annually. The EPA 201 Facilities Planning Study
growth projection data presented in the RBD report also included a low and a high
projection. The 201 plan low growth rate, prepared originally by the Larimer-Weld
Regional Council of Governments in the 1978 Area Wide Water Quality Management
Plan, was 1.33% annually. The :ZOI plan high growth rate, origiruUly prepared for
the Proposed Northern Colorado Domestic Water Authority in the 1978 System
Feasibility Study, was 5.5% annually.

Comment 3. Since average day or average annual demands, as well as population figures are not

given, it's difficult to assess the Cllrrent rate of water use but it appears to be on the

high side. There is also no indication as to whether the Town is metered. Some

consideration of water conservation may be indicated if, in fact the gallon per capita

per day water demands are as high as they appear to be based on the information at

hand.

Response: Johnstown is metered. Johnstown certainly appreciates the concern for conservation

and will seek to implement appropriate conservation measures as these opportunities

are unveiled. Please keep in mind that the majority of per capita usage occurs in the

summer months when lawns are being irrigated. The genesis of this project,

however, is due to water delivery problems that occur in the winter, water yield loss

that occurs as a result of delivery of water in an open ditch, and water quality

problems that occur as a result of the transport of water through agricultural areas in

an open ditch. Treated water conservation measures will not address these problems.

Comment 4: No information is provided regarding the water rights to be used for the project or the
firm yields for those water rights. Water rights firm yields should be compared with
o:isting and projected water demands in acre-feet ver year for the life of the project.

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