Arkansas - Upper Ark WCD Hydrologic Water Balance Study_Application

• Basin Roundtable: Arkansas
• Applicant: Upper Arkansas Water Conservancy District
• Description: Hydrologic Water Balance Study
• Account Source: Statewide
• Board Meeting Date: 9/15/2009
• Contract/PO #: 150460
• WSRA - Doc Type: Grant Application

Water Supply Reserve Account- Grant Application Form
Torm Revised May 2007
TABLE 13: SWSI WATER MANAGEMENT OBJECTIVES
Ob'ective How Addressed
Important cultural values include open space (82% of land in Chaffee County is publicly-held) and
recreation (-800,000 yearly visits to the AHRA) - at least 27% of study area jobs are in the
Protect cultural values tourism and recreation sector; data generated can be used to define required maintenance for
open space sustainability that drives tourism and recreation; water resource planners and land
use mana ers can use data to make decisions re ardin issues such as develo ment densit .
Data will improve regional understanding for water resource managers and land use planners to
provide operational flexibility related to timing of reservoir releases and placement of ground
Provide for operational water wells for new development; for instance, if high elevation snowpack declines as projected
flexibility (10-20%) and drought increases, data can be used to plan for the effect on AHRA annual use
numbers, which decreased 25% during the 2002 drought (see Figure in answer to evaluation
criteria t .
Data generated will help preserve in-state water rights and protect the Colorado-Kansas
Compact; by quantifying amount of ground water available for sustainable use, data will help the
Comply with laws, District provide augmentation water for out-of-priority well use to meet Compact obligations; since
regulations, and water -90% of the water in the Arkansas passes through the Wellsville gage at the southern border of
rights the study area, large down-basin cities Colorado Springs (population -375,000) and Pueblo
(population -105,000) will benefit from data generated about the interchange between grountl
water and surface water in the high mountain headwaters stud area.
k. The water activity promotes water conservation and efficiency.
8
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Wells
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w
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15 ?
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1980 1990 2000 2010 2020 2030
The hydrologic water balance study will promote
water conservation and efficiency by generating
data that water resource managers and land use
planners can use to promote water conservation
and efficiency. For instance, data generated can be
used to deal with projected population growth in the
headwaters region of 72% by 2030, increased
demand for augmentation water, and potential
climate change.
Figure 3 depicts the projected growth in the number
of domestic and household wells in Chaffee County
based on current and projected population (USGS
2005). It is estimated that the population of the
county will grow between 2000 and 2030 from
-16,000 to -28,000 and that the number of
domestic and household wells will more than double
from -3,400 to almost -8,000. Data generated can
be used to promote water conservation and
efficiency because it can be used to adjust water
and land use planning for uncertainties like where
population grows and where wells are drilled.
Upper Arkansas Water Conservancy District (UAWCD) Page 19 of 42