DDW-2025-003211

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Wasatch Peaks Ranch │Ox Bow Bend Well (Well 3)
March 2025

TECHNICAL MEMORANDUM
To: Brent Arns, P.E.
Utah Department of Environmental Quality
From: Will Bowman, P.E.
Kimley-Horn and Associates, Inc.
111 East Broadway, Suite 600, Salt Lake City, UT 84111
[phone]
[e-mail]
Date: March 17, 2025
Subject: Wasatch Peaks Ranch Oxbow Bend Well (Well 3) - Design Memorandum
Water System #15044, Source No. WS004
INTRODUCTION AND PURPOSE
The purpose of this memorandum is to provide an explanation of the accompanying construction
drawings of the Wasatch Peaks Ranch Oxbow Bend Well pumphouse and header water line. The name
“Well 3” has been used in the plans to represent the Oxbow Bend Well, source no. WS004. The
construction documents are being submitted for approval from the Utah Department of Environmental
Quality (UDEQ). The goal for the project is to begin construction summer-2025.
BACKGROUND
The proposed Wasatch Peaks Ranch (WPR) Development is a 15.1 square mile development northeast
of Salt Lake City within Morgan County, Utah. The project will include a private low-density residential
community with private recreational amenities. The project is zoned as a Resort Special District (RSD)
and approved for up to 750 equivalent residential connections (ERC). The residential and commercial
developments and associated infrastructure will be developed in phases beginning in mid-2020. The
project is being completed by WPR Development Company and the associated infrastructure to support
the development includes water and sewer systems in addition to roadways, dry utilities, and drainage
improvements. As noted, this submittal is a portion of the water system that will be further described
below.
WATER SYSTEM
The proposed water system includes a raw water system and distribution system. The raw water system
is generally composed of groundwater wells, well header piping, transmission main, pump stations and
associated storage tanks, and additional raw water piping. The raw water system delivers raw well water
to the development to serve the distribution system and the snowmaking and golf course irrigation
systems. The distribution system will chlorinate the raw well water at PF003 and then deliver potable
water throughout the development. The components of the distribution system are a chlorination system
(TP001), pump stations, water storage tanks, distribution piping, and pressure reducing vaults (PRVs).
The various water system components have been and will be constructed in phases as development
continues.

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Wasatch Peaks Ranch │Ox Bow Bend Well (Well 3)
March 2025

The water system Exchange Application was approved in Fall 2020. The Transmission Main Part 1,
Transmission Main Part 2, Transmission Main Part 3, Well Header, Pump Station 1-3, Tank 1-4, Plat 1
water distribution, and Tank 4 to Plat 1 water distribution line all received operating permissions in
December 2023. Well A and A2 received operating permissions in January 2024. Plat 2A water
distribution plans received plan approval on May 31, 2022. Plat 3A water distribution plans received plan
approval on November 2, 2023. Plat 3C water distribution plans received plan approval on February 18,
2025. This submittal consists of construction drawings for Well 3 well house and the Well 3 Header water
line. The remaining components associated with the water system will be submitted separately to UDEQ.
The entire water distribution system was modeled to meet all UDEQ requirements, and a report was
approved by DDW on March 23, 2021. The intent of the Well 3 construction drawings is to augment the
water supply to the WPR water system. The well 3 header includes approximately 1640 LF of 24-inch DR-
7 HDPE piping that connects to the existing transmission main and connection point for the Well A and
A2. The elevation range of the plans range from approximately 4810 feet to 4835 feet in elevation.
However, the elevation range that the pressure will act on the proposed infrastructure is from
approximately 4810 feet in elevation to 5485 feet in elevation. Air vacuum combination valves are
included at high points to alleviate air from the system. The transmission main was sized based on
guidelines from the Utah Administrative Code Rule 309-550. The goal is to keep velocity in the well
header/transmission main below 3.5 feet per second during buildout conditions. The well
header/transmission main is sized to deliver water and meet the demands for snowmaking, golf course
irrigation, and culinary demands for residential and commercial uses (including indoor and irrigation).
Appendix A includes an overall water system schematic for a visual representation of the different
components of the proposed water system.

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Wasatch Peaks Ranch │Ox Bow Bend Well (Well 3)
March 2025

APPENDIX A – WELL HEADER SIZING CALCULATIONS