WSP11585

• File Number: 8445
• Description: Union Park
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 10/1/1989
• Author: WRC Engineering
• Title: Engineering Report fo the Union Park Project Water Rights
• Water Supply Pro - Doc Type: Report/Study

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B. Arapahoe County's Dependence on Ground Water Supply
I n recent years the dependence on ground water supply sources has
increased in Arapahoe County. A number of providers in the southea5t
corridor of the Denver Metropolitan area rely exclusively on ground water
50urce5 for thei r water supply requi rements.

Recently WRC Engineering, Inc. completed an assessment of the current and
projected ground water uses in the urbani zed area of Arapahoe County
which is presented in Table / II-I. The subject asse5sment covered the
area wi thi n Arapahoe County west of Gun Cl ub Road, and is 1 imi ted to
water provider5 that have been and are projected to rely exclusively on
the ground water sources for their water supplies.

Eighteen different water providers in the study area were identified ana
contacted for the purpose of obtaining information on their current and
projected (year 2010) ground water supply use. Nine of these providers
were identified as those who have and are projected in year 2010 to use
ground water as an exclusive source of their water 5upply. A listing of
these nine providers is presented in Table / II-I. The decreed amount of
ground water, current use of ground water, and projected year 2010 ground
water use is presented for each provider. It is projected that these
providers will continue to rely on ground water sources unless these
sources are replaced with renewable water supplies in the future.

Currently Arapahoe county owns 31% of the interest in the proposed
Arapahoe County Union Park Project. The project safe annual yield is

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