ELCO WCPlan2007

• Project Type: Water Conservation Plan
• Contract/PO #: OE PDA 07-60
• Applicant: East Larimer County Water District
• Project Name: East Larimer County Water District Water Conservation Plan
• Title: East Larimer County Water District Water Conservation Plan
• Date: 6/1/2007
• County: Larimer
• Water Conservation - Doc Type: Complete Plan

LIST OF FIGURES

Figure 3.1 - ELCO Water District Service Area ..........................................6
Figure 3.2 - Service Areas of Special Districts Receiving Water from SCFP ...7
Figure 3.3 - Metered Water Sales by Customer Category in 2006 . . . . . . . . . . . . ... . . . . . 10
Figure 3.4 - Pipe Diameter, Length and Material within ELCO Transmission
& Distribution System . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 3.5 - Price 0 f C - B T Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 3.6 - C- B T Quota Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 3.7 - Ownership Classification of C- BT Units .. .. .. .. .. .. .. .. .. .. .. . .... ..14
Figure 3.8 - Unaccounted Water Use in ELCO Water District (1992 - 2007) ..18
Figure 3.9 - Monthly Charges for ELCO Customers with %" Meters

( 1991 - 2007) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 3.10 - Sample Chart Included on Monthly Bills ofELCO Customers Showing

Water Use History . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Figure 3.11 - Residential Customers Subject to Conservation Charge in 2006
an d Am 0 un t Ass e sse d ............... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 3.12 - Non-Residential Customers Subject to Conservation Charge in 2006
an d Am 0 un t Ass e sse d ....................................... . . . . . . . . . . . . . . . . . 23
Figure 3.13 - Annual Water Sales by Customer Category (1993 - 2006) ......... ..24
Figure 3.14 - Annual Allotment for New ELCO Residential Customers with
Different Size Lots ....................................................... .27
Figure 4.1 - Comparison of Monthly Plant Production and Metered Water Use of
ELCO

Customers in 2006 . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Figure 4.2 - Monthly Water Use by Customer Category in 2006 .................... .31
Figure 4.3 - Total Monthly Water Use by Non-Residential Irrigation-Only Customer

Accounts in 2006 ..................................................... ....32

Figure 4.4 - Total Monthly Water Use by Non-Residential Customer

Accounts in 2006 ..................................................... ....32

Figure 4.5 - Customers Using the Greatest Amount of Water in 2006 ........ ...35
Figure 4.6 - Average Annual Water Use per Mobile Home Pad (2003 - 2006) ..36
Figure 4.7 - Projected Water Use by Customer Category .. .. .. .. .... .. .. .. .. .. .. .. .. .38
Figure 5.1 - SCFP Treatment Capacity and Projected District Demands ........ ...41
Figure 5.2 - ELCO Water Transmission Line Capacity ............................ .42
Figure 5.3 - ELCO Water District Water Raw Water Storage Capacity .......... .45
Figure 9.1 - Comparison of Demand Forecast with and without Conservation ..70

Clear Water Solutions, Inc.
East Larimer County Water District

2007 Water Conservation Plan

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