C150237 Feasibility Study

• Contract/PO #: CT2015-040
• Contract/PO #: C150237
• Contractor Name: Penrose Water District
• Contract Type: Loan
• County: Fremont
• Bill Number: SB 07-122
• Loan Projects - Doc Type: Feasibility Study

Loan Feasibility Study for
Raw Water Acquisition and Utilization
Page 21
Table 4
Comparison of Water Utilization Projects
(Scale of 1 - 5 with 5 Representing the Highest Achievable Score)
6.3 SELECTED ALTERNATIVE
The District has selected the purchase of 10 /12th ownership in the Pleasant Valley Ditch with
utilization by diversion through ground water wells and pipeline conveyance to an enlarged Brush
Hollow Reservoir as its preferred alternative. To increase flexibility and utilization of the well field
throughout the year, an augmentation plan will be filed in Water Division 2 Water Court. Details of
the selected alternative are as follows.
The peak demand of the project is approximately 2.6 cfs. Seven (7) wells operating at
approximately 175 gallons per minute (gpm) will be installed. The current proposed well field will
be located between the existing Great Blue Heron gravel pit lakes and the Arkansas River to
maximize surface water recharge potential. The wells will likely be less than 50 feet deep, and
around 12- inches in diameter. The wells will be spaced approximately 400 feet apart to reduce well -
to -well interference. Submersible, 40 horsepower motors will be installed in the wells, thereby
minimizing disturbances to the flood plain. The probable cost of drilling and equipping the wells
will be around $410,000. A well siting study, including a drilling and testing program, will be
completed to confirm the optimal location for the well field. The proposed well field design is
shown on Figure 7.
Leonard Rice Engineers, Inc. August 2006 - 1018PEN05
GMS, Inc.
Alternative
Alternative
Alternative
1
2
3
Satisfies District's Base
Demand for Water
1
3
4
Improves Reliability of
the Existing System
1
4
4
Provides Diversity in the
District's System
1
5
5
Minimal Impact on the
Existing System
5
2
4
Owned and Operated
Independently
1
4
3
Minimize Environmental
Impacts
5
2
4
Allows Flexibility for
Future Expansion
1
4
4
Cost Effective
1
2
5
Total Score
16
26
33
6.3 SELECTED ALTERNATIVE
The District has selected the purchase of 10 /12th ownership in the Pleasant Valley Ditch with
utilization by diversion through ground water wells and pipeline conveyance to an enlarged Brush
Hollow Reservoir as its preferred alternative. To increase flexibility and utilization of the well field
throughout the year, an augmentation plan will be filed in Water Division 2 Water Court. Details of
the selected alternative are as follows.
The peak demand of the project is approximately 2.6 cfs. Seven (7) wells operating at
approximately 175 gallons per minute (gpm) will be installed. The current proposed well field will
be located between the existing Great Blue Heron gravel pit lakes and the Arkansas River to
maximize surface water recharge potential. The wells will likely be less than 50 feet deep, and
around 12- inches in diameter. The wells will be spaced approximately 400 feet apart to reduce well -
to -well interference. Submersible, 40 horsepower motors will be installed in the wells, thereby
minimizing disturbances to the flood plain. The probable cost of drilling and equipping the wells
will be around $410,000. A well siting study, including a drilling and testing program, will be
completed to confirm the optimal location for the well field. The proposed well field design is
shown on Figure 7.
Leonard Rice Engineers, Inc. August 2006 - 1018PEN05
GMS, Inc.