PROJ02092

• Contract/PO #: C150180
• Contractor Name: Pinewood Springs Water District
• Contract Type: Loan
• Water District: 4
• County: Larimer
• Loan Projects - Doc Type: Feasibility Study

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Prior Planning: Preliminary Engineering Report of 1977:
Wright-McLaughlin Engineers prepared a Service Plan for Formation of the Pinewood Springs
Water District in 1977 [1]. This Plan recommended boundaries for establishment of the District. A
peak day water demand of 83,000 gallons for an ultimate projected development at that time of331
equivalent single family residences (EaR) was identified. Recommended initial improvements to the
then existing water system included development of a new central well field, strengthening the
distribution system, and construction of Pinewood Springs Reservoir. This Plan was partly
implemented; it provides both useful background information and a good starting point for
preparation of this Planning Document. More complete descriptions of the present situation and
existing facilities are given in the following Sections.

One key part of the Service Plan not implemented was construction of the augmentation reservoir
mentioned above. This reservoir was to have a total storage capacity of twenty acre-feet and be
located on Lot 5 of Filing 11 as shown on Drawing 1, Altemate 0.1. The District has had to augment
its water supply in dry periods by hauling in water. A reservoir as originally envisioned for raw water
storage will address system deficiencies during periods of drought and provide a better and more
reliable supply of raw water.

Scope:
The basic components of a water system master plan include supply, treatment, storage and
distribution. Supply includes legal and physical availability of water supplies and, often, transmission
and storage of raw water. This report will present an engineering analysis of altemates for providing
raw water storage, raw water transmission, treatment, and transmission into the distribution system.
The District has previously analyzed availability, storage, and distribution of treated water, and these
areas are not the focus of this Planning Document.

The District has completed much of the preliminary planning and this report evaluates only those
altemates that resulted from that planning effort.

The District is currently investigating water rights that pertain to the raw water storage altemates that
are evaluated in this Planning Document. Consequently, water rights issues were not included in
the scope for this report.

Some altemates presented in this Planning Document may include construction in the flood plain of
the Little Thompson River. Flood plain mapping is not included in data fumished by the District and
preparation of an engineering analysis of flood potential is beyond the scope of this report. Any