Erie_WCPlan_50%PR

• Water Efficiency Grant Type: Water Conservation Planning Grant
• Applicant: Town of Erie
• Project Name: Town of Erie Water Conservation Plan
• Title: 50% Progress Report
• Date: 4/9/2007
• County: Weld
• Water Efficiency - Doc Type: Interim Reports

T bl 2 1 2007 W t S t P fl

a e - a er .ys em ro Ie
SERVICE CHARACTERISTICS Number
Estimated service population See Section 2.1.2
Estimated service area 15 square miles
Miles of mains 153
Number of treatment plants One
Number of wastewater treatment plants One with another being constructed
Number of separate water systems None
Emergency connections with City of Lafayette & Left Hand
Interconnection with other systems Water District
Percent
ANNUAL WATER SUPPLy1,2 Water Rights Yield metered
Potable Surface Water 5,852 AFY 1 000/0
Non-potable Ditch Water 1 , 170 AFY 1 000/0
Total annual water supply 7,022 AFY 1 000/0
Percent
SERVICE CONNECTIONS Connections metered
Residential 90 1 000/0
Irrigation 117 1 000/0
Total connections 5,621 1 000/0
Prepared a
PLANNING plan Completion Date Filed with state
In process of
Participant in completing final
Northern Integrated Supply Plan (NISP) regional plan phase EIS document
In process of
Participant in completing final
Windy Gap Firming Project regional plan phase EIS document
Potable Water Master Plan Yes March 2007 No
Non-potable Water Master Plan In process Spring 2007 No
Drought or emergency plan No No No
Water Conservation Plan This Document June 2007 Will be filed
"'This does not include reuse of reclaimed water. Section 2.6 provides more information.'~
2 Average-year water right yields. See Table 2-2.

2.2 Sources of Water

Erie's water supply portfolio consists of a variety of surface water supplies. This
includes reservoir, ditch, CBT, and Windy Gap water rights with a total average year
yield of 7,022 AFY. Table 2-2 shows Erie's current water supply portfolio. These
supplies provide an adequate amount of water to meet current needs. However,
additional water rights will be needed to meet future demands.

Table 2-2 Erie's Existing Water Rights, November 2006

Average Dry Year
No. of Annual Average Annual Dry Year
Shares or Yield Annual Yield Annual
Water Right Name Units Owned (AF/share) Yield (AF) (AF/share) Yield (AF)
Transbasin Sources
CST - Variable Quota 6,503 0.7 4,552 1 6,503
CST - Fixed Quota 190 0.7 133 0.6 114
Subtotal CST 6,693 n/a 4,685 n/a 6,617
Windy Gap Project 14 50 700 0 0
Subtotal 6,707 n/a 6,085 n/a 6,617
Reservoir Storage
Erie Reservoir 239 1.0 239 0.3 72
Prince Reservoir 80 1.0 80 0.3 24
Thomas Reservoir 148 1.0 148 0 0

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