WSP07002

• File Number: 8449
• Description: Platte River Studies
• State: CO
• Basin: South Platte
• Date: 2/1/1991
• Author: City of Greeley
• Title: Feasibility Study for Rehabilitation of Hourglass Dam and Reservoir Vol. 1
• Water Supply Pro - Doc Type: Publication

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4.0 WATER

4.1 WATER REQUIREMENTS

The City of Greeley provided treated potable water to more than 69,000 people In 1989. This
includes supplying communities and Industrtes outside of the City.

The water use projections for Greeley's service area are based upon a hlstortcal average
domeslic consumption rale of 240 gallons per capita per day for the service area, and
population projections from the 1986 City of Greeley Planning Department Comprehensive
Growth Study, Population projections from 1990 through 2015 are shown on Figure 4,1. In
1989, however, the City population was 60,216. This Is significantly below the projeCled
population of 65.000 for 1990. The shortfall appears to be largely the result of negligible growth
In 1987 and 1988, These two years are charaClerized by severely depressed conditions, Tt>is
short term event does not justify allering the established long term population projeClion.
Therefore. the 1990-2015 Greeley Planning Department growth projeCllons have nol been
changed. A population of 9.524 that live oUlside of the City was also served in 1989,

The projected 2015 annual water demand is 12,6 million gallons, as shown on Table 4,1, This
includes 8.2 million gallons for the City and 4.4 for users outside of the City, Included are the
major induslrial firms of Hewlett-Packard, Kodak, Montford, the City of Evans and olhers.
Information from the 'Boyd Lake Plants Raw Water Supply and Treatment Study'. James
Montgomery, 1985 was used to project future water demands outside of the City.

Table 4,2 shows projected annual water use from 1985 to 2015. The aClual water usa from
1985 was 7,050 million gallons. It was 8,030 mUlion gallons In 1989, an increase of 245 million
gallons per year. The 1990 project annual water use Is therefore. projected 10 be 8.030 plus
245 equals 8.275 million gallons. This 1990 estimate Is somewhat higher than a prior estimate.
but is more consistent with actual growth. No olher projected use numbers were changed.

The projected waler use for 2015 Is 12.618 mUlion gallons, an increase of 4.343 million gallons
or a 52-percent increase, In 25 years. Average daUy water use will Increase from 22.7 to 34,6
million gallons per day,

4-1