WSP08952

• File Number: 8449.870
• Description: SB 996-153 Phase I - Economic Life of the Denver Basin
• State: CO
• Basin: South Platte
• Date: 11/13/1996
• Author: CWCB/SEO
• Title: Economic Life of the Denver Basin Final Report
• Water Supply Pro - Doc Type: Publication

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Table 1

Colorado Water Conservation Board and The State Engineer-s Office
Senate Bill 153 - Economic Life of the Denver Basin Aquifers

HRS Water Consultants, Inc.

November 12, 1996

Phase 2 Scope of Work - No.1

Tasks
1.0 Literature Review. Aquifer Layering Effects on Well Production
1.1 Perform literature search on aquifer layering effects,
review articles and write-up conclusions.

2.0 Radial Flow Correction Analysis
Each of the following subtask will include the following:
. Select aquifer area and cell for analysis
. Create a hydrograph of cell drawdown vs. time.
. Perfonn radial flow correction on cell drawdown values.
. Create hydrograph of corrected pumping water level.

2.1 Denver aquifer well in the northern Metro area.
2.2 Arapahoe aquifer well in the northern Metro area.
2.3 Dawson aquifer well in the southern Metro area.
2.4 Denver aquifer well in the southern Metro area.
2.5 Arapahoe aqUifer well in the southern Metro area.
2.6 Denver aqUifer well south of the Palmer Divide.
2.7 Arapahoe aquifer well south of the Palmer Divide.

3.0 Denver Basin Aquifer Layered Radial Flow Production Analysis.
Each analysis includes:
. Select well location and well for analysis.
. Geophysical log analysis. aquifer layering
. Detennine of the well production rate.
. Evaluate aquifer hydraulic conductivity.
. Detennine annual regional drawdown.
. Layered radial flow model construction. input file setup.
. Layered radial flow model runs.
. Model analysis.

3.1 Arapahoe aquifer well in the northern Metro area.
3.2 Arapahoe aquifer well in the southern Metro area.
3.3 Arapahoe aquifer well south of the Palmer Divide.

Task 4.0 . Economic Analyses
4.1 Denver aquifer well in the northern Metro area.
4.2 Arapahoe aquifer well in the northern Metro area.
4.3 Dawson aquifer well in the southern Metro area.
4.4 Denver aquifer well in the southern Metro area.
4.5 Arapahoe aquifer well in the southern Metro area.
4.6 Denver aquifer well south of the Palmer Divide.
4.7 Arapahoe aquifer well south of the Palmer Divide.

Task 5.0 - Report
5.1 Prepare Phase 2 NO.1 Report.
5.2 Discuss the DBA economic life issue.
5.3 Discuss domestic well production cost and the effects on
pumping of regional water-level declines.