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<br />assumed that the cooling tower is operated 100 days per year for 11 hours per day, Based
<br />on a 2.5 gpm water usage per 100 ton capacity, water use for cooling is estimated at
<br />1.073.0001!:allons per year, Water use for cooling is assumed to be the same before and
<br />after remodeling, Cooling tower water use is not metered,
<br />
<br />Cooling tower water use includes water lost through evaporation, drift, and normal
<br />blowdown operations, Of these water uses, only blowdown goes into the sewer system,
<br />However, sewer charges are being assessed on the entire amount. By metering and
<br />monitoring cooling tower water uses, sewer charges could be reduced, The State should
<br />contact Denver Wastewater to discuss doing a "Water Loss Study" for cooling tower usage,
<br />
<br />Kitchen Use - A cafeteria is located in the State Services Building that serves breakfast and
<br />lunch five days per week. The cafeteria is also newly remodeled and has a total seating
<br />capacity of approximately 200 people, It has just recently started operation, Estimated
<br />water use for the cafeteria is projected to be 104.000 l!allons per year, assuming 200 meals
<br />per day with a total water use of 2 gallons per meal, This includes meal preparation,
<br />dishwashing, cleaning and sanitation, Ice makers in the new cafeteria are air-cooled,
<br />
<br />Prior to the renovation of the building, a smaller cafeteria was located in the basement of
<br />the facility, An estimated 50 meals per day were served in the old cafeteria, Based on the
<br />same water use assumptions, kitchen water use prior to remodeling is estimated at 26.000
<br />l!allons per year,
<br />
<br />Washinl! & Sanitation - Washing and sanitation water use includes general janitorial clean-
<br />up, This clean-up normally occurs during the evening on normal working days, or
<br />approximately 260 days per year, Assuming 20 gallons per floor, with eight floors, annual
<br />water use for this pUl]Jose is approximately 46.000 l!allons.
<br />
<br />Landscape Irrigation - Water is used for landscape irrigation on this site, Prior to
<br />remodeling, the tree lawn areas adjacent to this building and also in front of the State
<br />Parking Garage received its water through this meter. In 1992, the parking lot west of the
<br />building was landscaped with shrub beds. This landscaping is also fed through this meter.
<br />Lawn areas adjacent to the building and in front of the State Parking Garage cover
<br />approximately 3200 square feet of area, Based on supplemental irrigation requirements for
<br />Kentucky Bluegrass of 18 gallons per square foot, irrigation usage was estimated at 57,000
<br />gallons per year, There is 1000 square feet of shrub area adjacent to the building, Based
<br />on 4 gallons per square foot of supplemental water, another 4,000 gallons per year was
<br />applied to these shrub areas, Annual irrigation water use to lawn areas and shrub areas
<br />adjacent to the building is estimated at 61.000 l!allons, Portions of the irrigation system
<br />adjacent to the building were updated along with the building renovation, This represents
<br />annual landscape irrigation usage prior to remodeling,
<br />
<br />.' ".
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<br />4,
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