PROJ00237

• Contract/PO #: C153400
• Contractor Name: Larkspur, Town of
• Contract Type: Loan
• Water District: 8
• County: Douglas
• Bill Number: SB 79-537
• Loan Projects - Doc Type: Feasibility Study

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Water Demands

Individual wells do not allow tpe compiling of water consumption records.

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In the absence of that historical daca, water demands can only be estimated

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based on experience in other communicies and on observations of apparent usage

in the area.

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Water consumption in the United States averages about 150 gpcd (gallons

per capita per day). Consumption in Colorado towns varies considerably, but

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is usually higher than the national ~verage. A great deal of water usage in

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Colorado is for lawn irrigation duri~g the summer months. The average day

consumption in some Colorado towns (~ithout water meters) approaches 320 gpcd

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due to heavy irrigation demands.

Observations in Larkspur show that there is very little lawn irrigation.

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Most existing grass areas are small ~nd the combination of higher precipitation,

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and frugal use of very limited water supplies undoubtedly contributes to

limiting irrigation demands.

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Water demands have been estimated for the Larkspur area based on the

following assumptions:

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1. The availability of an adequate supply of water through a
community system will encourage the planting and mainten-
ance of more and larger lawns.

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2. Installation of water meters as part of the project will
encourage conservative water use.

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3. The conservative water use habits of the present population
will continue to restrict demands.

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Using these assumptions and experience in other towns, the water demands

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are estimated to be:
Average day
Maximum day
Peak hour

=

150 gpcd
300 gpcd
600 gpcd

=

=

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8