PROJ00294

• Contract/PO #: C153035
• Contractor Name: Carbondale, Town of
• Contract Type: Loan
• Water District: 0
• County: Garfield
• Bill Number: SB 75-468
• Loan Projects - Doc Type: Feasibility Study

VI-10

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TABLE VI-I
REQUIRED DURATION FOR FIRE FLOW

Requi red Fire Flow (gpm) Requi red Durat ion (hours)
10,000 and greater 10
9,500 9
9,000 9
8,500 8
8,000 8
7,500 7
7,000 7
6,500 6
6,000 6
5,500 5
5,000 5
4,500 4
4,000 4
3,500 3
3,000 3
2,500 and less 2

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Based on Table VI-!, the required duration is three hours, which in turn

results in a fire flow storag~ volume of 540,000 gallons. Normally, this

fi re flow volume is in addition to the maximum average daily demand

(cur~!ntly about 1,200,000 gpd), which should be supplied directly to

the system with a specified numbfr of units out of service, if future

building construction manages to keep fire flow demands reasonable.

Future developments will revise the above somewhat in terms of required

fire flows, average daily demand, storage, and water supply rates. Storage

capacity and supply rates will have to be carefully balanced to provide

proper protection at reasonable cost. It is anticipated that an additional

pressure zone will be required above the existing system for future devel-

opment. It is important to note that thi s zone wi 11 have to meet the same

requi rements as the existing system, and if structures and development

require 3,000 gpm fire demands, a 540,000 gallon increment of storage would

be available in the upper zone.

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