DDW-2024-012183

BOULDER MOUNTAIN GUEST RANCH
ENGINEERING EVALUATION REPORT

September 19, 2024

Project #: 2405-044

09-19-2024
Boulder Mountain Guest Ranch Jones & DeMille Engineering
Project #: 2405-044 Engineering Evaluation Report Page i

TABLE OF CONTENTS
1. Introduction .......................................................................................................................... 1
2. Location ................................................................................................................................. 1
3. References ............................................................................................................................. 1
4. Analysis/Design Criteria ......................................................................................................... 1
5. Demands ............................................................................................................................... 2
6. Hydraulic Model .................................................................................................................... 4
7. Existing System ...................................................................................................................... 4
7.1. Water Rights ............................................................................................................................... 4
7.2. Source ......................................................................................................................................... 5
7.3. Storage ........................................................................................................................................ 7
7.4. Distribution System .................................................................................................................... 8
8. Recommended Improvements ............................................................................................... 8
8.1. Improvements For The System To Be Compliant ....................................................................... 8
8.1.1. Water RIghts .......................................................................................................................... 9
8.1.2. Source .................................................................................................................................... 9
8.1.3. Storage................................................................................................................................... 9
8.1.4. Distribution System ............................................................................................................... 9
8.2. Additional Recommended System Improvements ................................................................... 10
9. Conclusion ........................................................................................................................... 10
Appendix A. Hydraulic Model Overview Maps ................................................................................ A-1
Appendix B. Cost Estimate.............................................................................................................. B-1

Boulder Mountain Guest Ranch Jones & DeMille Engineering
Project #: 2405-044 Engineering Evaluation Report Page ii

FIGURES
Figure 7-1. Upper Spring Collection Boxes .................................................................................................... 5
Figure 7-2. Lower Spring North Collection Box ............................................................................................. 6
Figure 7-3. Lower Spring East Collection Box ................................................................................................ 7

TABLES
Table 4-1. Design Criteria .............................................................................................................................. 2
Table 4-2. System Demands .......................................................................................................................... 3
Table 7-1. Water Rights Summary ................................................................................................................ 5
Table 7-2. Existing Storage ............................................................................................................................ 8

Jones & DeMille Engineering
Page 1 Project #: 2405-044

1. INTRODUCTION
Boulder Mountain Guest Ranch (BMGR) is in the process of becoming a Public Water System (PWS).
Jones & DeMille Engineering (JDE) has been contracted to analyze the existing system and make
recommendations for the system to become compliant with State regulations. This report will analyze
existing sources, water rights, storage, and distribution infrastructure for the system. A statement of
compliance, contingent upon required system improvements, will be issued as part of the report. A
corrective action plan has been issued and this report is required to be submitted to the Division of
Drinking Water (DDW) by October 9th, 2024.
2. LOCATION
BMGR is a resort located along Hells Backbone Road approximately 8 miles west of Boulder, Utah, in the
central region of Garfield County. The resort is situated at the mouth of a valley that overlooks
Sweetwater Creek and the resort accommodates hundreds of guests each year. The BMGR is comprised
of a guest lodge, cabins, yurts, camping areas, and event venues. A map of the existing system can be
found in Appendix A.
3. REFERENCES
• Utah Administrative Codes (UAC):
o Rule R309-510 – Facility Design and Operations: Minimum Sizing Requirements
o Rule R309-511 – Hydraulic Modeling Requirements
o Rule R309-105 – Administration: General Responsibility of Public Water Systems
o Rule R309-540 – Facility Design and Operation: Pump Stations
• InfoWater (Version 2025.1) Hydraulic Model
4. ANALYSIS/DESIGN CRITERIA
The existing BMGR water system consists of two spring collection areas, two 500-gallon storage tanks
(not buried), a booster pump, and 2-inch PVC water pipe. The system was analyzed based on the UAC
sections references above. Typically, culinary systems are evaluated based on Equivalent Residential
Connections (ERCs). However, the BMGR system is a transient non-community system that operates
seasonally with no residential connections. Because of this, an ERC was replaced with an Equivalent
Hotel Unit (EHU), which was considered the base unit for the system. This will provide a more accurate
representation of the BMGR system where there are varying connection types (hotel unit, bathhouse,
restaurant, etc.) with specific water usage given in tables in Section R309-510 of the UAC.
The BMGR system does not use culinary water for outdoor or irrigation use, so only indoor use has been
considered. The BMGR does not anticipate any future growth or developments occurring within the
system, so only the existing system and existing demands were analyzed. The BMGR system does not
provide fire flow or have any fire hydrants, so fire scenarios were not analyzed as part of this report. A
summary of applicable design criteria can be found in Table 4-1.
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Table 4-1. Design Criteria
Water System Element Indoor Use Pressure(1)
Water Right(2) 150 GPD (0.14 ac-ft) per EHU
(total diversion limit) None
Water Right(2) 150 GPD per EHU
(peak flow/peak day demand) None
Water Source 150 GPD per EHU
(peak day demand) None
Water Source 150 GPD per EHU
(average day demand) None
Water Storage 75 Gallons per EHU None
Distribution 10.8*N0.64
(Peak instantaneous)
30 psi for peak instantaneous
demands, 40 psi during peak
day demand
(1) Minimum pressure at all points in the distribution system
(2) Per State of Utah Water Rights requirements

5. DEMANDS
The source demand for indoor use of BMGR components was sized according to the UAC referenced in
Section 3. There is no available flow data for the existing connections, so each connection was given a
demand based on Table 510-1 or Table 510-2 in UAC Section R309-510. Each connection was also given
a peak occupancy based on the BMGR website. The assigned demand was multiplied by the maximum
occupancy (if applicable), and then divided by the peak day demand of 150 gpd to determine the EHU
value. The storage volume per unit was also calculated for each component based on the average day
demand (ADD), which is half of the PDD. Typically, the peak instantaneous demand is calculated by using
Equation 1 below (per UAC Section R309-510-9) and dividing the total flow by the total number of EHUs.

𝑇𝑜𝑟𝑎𝑙 𝐸𝑙𝑜𝑤 (𝑒𝑜𝑙)=10.8 ∗𝑁𝑟𝑙𝑎𝑒𝑟 𝑜𝑒 𝐸𝐻𝑇𝑟0.64 (1)

This equates to a flow of approximately 2.86 gpm per EHU. Based on this calculation, the PID system
demand is approximately 114.48 gpm. This value was verified by taking the number of plumbing fixtures
in each unit and multiplying them by the associated peak demand per the 2018 International Plumbing
Code (IPC) Table 604.4. This method provided a PID demand of approximately 107.5 gpm (2.69
gpm/EHU). This value will be used as the PID demand for this report. The total system demands and
storage requirements are summarized below in Table 5-1.
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Table 5-1. System Demands
Unit UAC Classification Peak
Occupancy
Source Demand for
Indoor Use (gal/day)
Storage
Volume
(gallons)
PID EHU
(150 gpd)
ERC
(800 gpd)
Main Lodge &
Restaurant
Restaurant
(per customer served) 200 2,000 1,000 8.20 13.33 2.50
Laundry Launderette 2 washers 1,160 580 8.00 7.73 1.45
Cabin 1 Seasonal/Non-Residential Use
Modern Recreation Camp 6 360 180 8.50 2.40 0.45
Cabin 2 Seasonal/Non-Residential Use
Modern Recreation Camp 8 480 240 8.50 3.20 0.60
Cabin 3 Seasonal/Non-Residential Use
Modern Recreation Camp 11 660 330 8.50 4.40 0.83
Two Room Suite Hotel, Motel, and Resort (per unit) 4 150 75 6.30 1.00 0.19
Lodge Room 4 Hotel, Motel, and Resort (per unit) 2 150 75 6.30 1.00 0.19
Lodge Room 5 Hotel, Motel, and Resort (per unit) 2 150 75 6.30 1.00 0.19
Lodge Room 7 Hotel, Motel, and Resort (per unit) 3 150 75 6.30 1.00 0.19
Lodge Room 8 Hotel, Motel, and Resort (per unit) 2 150 75 6.30 1.00 0.19
Yurt #1
Seasonal/Non-Residential Use
Semi-Developed Camp with flush
toilets
3 60 30 6.30 0.40 0.08
Yurt #2
Seasonal/Non-Residential Use
Semi-Developed Camp with flush
toilets
3 60 30 6.30 0.40 0.08
Yurt #3
Seasonal/Non-Residential Use
Semi-Developed Camp with flush
toilets
3 60 30 6.30 0.40 0.08
Yurt #4
Seasonal/Non-Residential Use
Semi-Developed Camp with flush
toilets
7 140 70 4.10 0.93 0.18
Siloon Studio Hotel, Motel, and Resort (per unit) 2 150 75 6.30 1.00 0.19
Shower House Bathhouses 12 120 60 5.00 0.80 0.15
Total 6,000 3,000 107.50 40.00 7.50
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6. HYDRAULIC MODEL
A hydraulic model of the existing BMGR water system was created to analyze the existing system to
determine if minimum flows and pressures could be met. Existing deficiencies were identified and
recommended improvements were made to bring the system within compliance with State regulations.
The model was created using InfoWater Pro version 2025.1, an extension in ArcGIS. There are not any
construction records or drawings showing the existing system layout, so pipes and junctions were
created where the BMGR owner thought was accurate. The spring and booster station were added at
their respective locations. Junctions were added near multiple connections and demands were allocated
based on the EHU value described in Table 5-1. A global demand multiplier of 0.104 was then used to
convert from EHUs to gpm for the PDD scenario and a multiplier of 2.63 was used for the PID scenario.
The hydraulic model layout is shown on the Hydraulic Model Overview Map in Appendix A.
7. EXISTING SYSTEM
The existing system is considered a transient non-community water system that operates between
March and December. The system consists of a spring, two 500-gallon storage tanks, a booster pump,
and approximately 2,275 (estimated) feet of 2” pipe. The spring is located 650 ft north-west of the
resort amenities and has two collection areas approximately 75 ft apart. The operator estimates that the
spring produces anywhere from three to six gpm, but there is not any historical flow data available to
determine the capacity of the spring. The springs feed into the tanks, which are next to each other
(located by the lower collection area) and are connected via a 2-inch pipe.
The water then gravity flows down a 2-inch pipe to the main lodge/restaurant and the Siloon. A booster
pump draws water out of the gravity flow pipe and pumps water to the cabins, yurts, and bathhouses.
When in operation, the booster pump significantly reduces pressure on the suction side of the pump,
which has caused loss of water pressure and even water to back feed from the lodge to feed the pump.
There isn’t a backflow preventer downstream of the pump along the gravity line, so when the booster
turns on it can pull water out of the section of line that services the Lodge and Siloon. This has
prevented the Lodge and Siloon from getting water in the past.
7.1. WATER RIGHTS
Currently, BMGR has a total of 4.25 cfs of water rights. These water rights are mainly for stock and
irrigation use but do serve one domestic unit as well. There is not currently a water right associated with
the spring, so a change application is required to be filed as soon as possible to utilize the spring as a
domestic source. According to the assumed demands discussed previously, the BMGR system will need a
minimum of 5.62 ac-ft of water with a diversion flow of 4.167 gpm (0.00928 cfs). The 5.62 ac-ft is based
on the peak day demand of 150 gallons per day per EHU. MBGR has sufficient water rights to meet the
demands of the system, but a change application will need to be filed immediately to update the point
of diversion, area of use, and nature of use. BMGR water rights are summarized below in Table 7-1.

Jones & DeMille Engineering
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Table 7-1. Water Rights Summary
Water
Right # Source Quantity
(cfs)
Quantity
(ac-ft) Nature of Use Link
97-118 Lake Creek 2.882 Irrigation, Stock, Domestic 97-118
97-119 Sweetwater
Creek 1.25 Irrigation, Stock, Domestic 97-119
97-788 Stream 362 Irrigation, Stock, Domestic 97-788
97-1961 Lake Creek 0.118 Irrigation, Stock, Domestic 97-1961
Total 4.25 141.42
7.2. SOURCE
The Sweetwater Spring is the only source of water for the BMGR system and is located approximately
0.25 miles north-west of the main parking area of the resort. It is estimated to have flows ranging
between three and six gpm, but there are not any flow measurement devices on the springs or any
historical flow records to verify.
There are two collection areas approximately 75 feet apart. The upper collection area has two masonry
block collection boxes with rubber mats and blocks sealing the top (see Figure 7-1 below). The smaller
collection box (box on the right in the figure) collects water for a separate system and is not used for the
culinary water system. There are two 2-inch pipes that go back into the hill that collect the water, but it
is unknown how long the collection pipes are. From the collection box, water enters a 2-inch pipe that
flows down to the first storage tank.

Figure 7-1. Upper Spring Collection Boxes
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The lower collection area has two collection boxes. The first has a pipe that extrudes from a rock face
and is fenced in with masonry blocks (see Figure 7-2 below). This collection box is in a cut out section of
the rock face. The water flows from the box into the second storage tank.

Figure 7-2. Lower Spring North Collection Box

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The second collection box is located approximately 10 feet from the first collection box under the edge
of the rock face (see Figure 7-3 below.) This also flows directly into the lower storage tank. The storage
tanks are connected with 2-inch pipes and a tee (plumbed in parallel). Water does not have to pass
through both tanks to enter the distribution system.

Figure 7-3. Lower Spring East Collection Box

7.3. STORAGE
There are two 500-gallon plastic storage tanks which serve the BMGR water system and provide a total
culinary water total storage capacity of 1,000 gallons. The tanks are located at the lower spring
collection area and are side by side. The upper spring collection water discharges directly into the first
(upper) tank and the lower spring collection area discharges directly into the second (lower) tank. Outlet
piping from both tanks interconnect through a 2-inch pipe that starts the distribution system.
Using the demands calculated in Section 4, the required equalization storage per EHU was determined
to be 75 gallons per Table 510-4 in UAC Section R309-510-8. The existing storage capacity provides for
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Page 8 Project #: 2405-044

approximately 13.33 EHUs and is not adequate to meet current demands. The system does not account
for fire flow or emergency storage. A summary of the existing storage and the sustainable EHUs are
shown in Table 7-2 below.
Table 7-2. Existing Storage
Name Total Volume (gal)
Upper tank 500
Lower tank 500
Total Existing Storage 1,000
Required Equalization
Storage 3,000
Emergency Storage 0
EHU Capacity 13.33
Additional Storage Req’d 2,000
The existing tanks currently have screw on lids, which are not compliant with UAC Section R309-545. A
shoebox style lid with a gasket seal and locking device is required.
7.4. DISTRIBUTION SYSTEM
The existing distribution system is made up of approximately 2,275 feet of 2-inch PVC pipe and a booster
pump. There is a gravity flow pipe that flows from the lower collection area to the lodge/restaurant and
then on to the Siloon. There is a booster pump that pulls from that gravity line and pumps up to the
cabins, yurts, and bathhouses. The suction side of the pump pulls from the gravity line, which has
dropped pressures and even pulled water from the line that services the lodge and Siloon.
The existing system was evaluated in a hydraulic model to ensure minimum flows and pressures could
be met for the PDD and PID scenarios. The model results show the existing system is not able to
maintain the flows and the pressure for either scenario. The areas that are served by the booster station
meet the pressures for the PDD, but the main lodge/restaurant and Siloon are well below the minimum
pressure requirement. The entire system will need to be boosted to meet the minimum pressure
requirements. The exhibit in Appendix A shows the pressure results during the PDD scenario.
8. RECOMMENDED IMPROVEMENTS
There are several proposed improvements that will need to be made to bring the BMGR water system in
compliance with applicable State standards. Additional recommendations will be made to simplify the
operation of the system and put more of the infrastructure in one location. The recommended
improvements are discussed in the following sections.
8.1. IMPROVEMENTS FOR THE SYSTEM TO BE COMPLIANT
All improvements are identified in the map included in Appendix A. An engineer’s estimate of probable
costs for the improvements are included in Appendix B.
Jones & DeMille Engineering
Page 9 Project #: 2405-044

8.1.1. WATER RIGHTS
There are not currently any water rights associated with the Sweetwater Spring. A change application
will be needed to move existing rights to the spring. This will require updating the point of diversion,
nature of use, and area of use. The system will require a minimum volume of 5.62 ac-ft and a minimum
flow rate of 4.167 gpm.
It should be noted that these values were determined using values provided in the UAC and could differ
from actual usage. Actual usage could be higher or lower than the calculated values, which would
change the minimum flow and volume amounts in the change application. These changes (if any) will
need to be addressed during the proof process and may require an amendment to the change
application or filing a new change application altogether.
8.1.2. SOURCE
The Sweetwater Spring currently does not meet the UAC standards. The spring will need to be
redeveloped with the following improvements completed:
• Have either 10 feet of cover or an impermeable liner to prevent surface water from
contaminating the spring. If a liner were to be used, it would need to extend a minimum of 15
feet in each direction from the spring collection area.
• The collection boxes will need to have gasketed, shoebox-style lids.
• The spring collection area will need to be fenced per UAC Section R309-515-7.
• Vegetation with deep roots will need to be removed from the collection area. Recommend
grading site to make mowing of spring site more manageable.
• A diversion channel or berm will need to be constructed to prevent surface water runoff from
entering the spring collection area.
• A permanent flow measuring device will need to be installed, housed, and otherwise protected.
These requirements can be found in the UAC Section R309-515-7.
8.1.3. STORAGE
The existing storage tanks do not provide sufficient storage for the system. An additional 2,000 gallons
will be required to meet the minimum storage requirements. This can be done with additional storage
tanks or replacing the existing tanks with one bigger tank. The hatch on the tanks also needs to be a
minimum of 18” above the maximum flood elevation and have a gasketed, shoebox-style lid.
8.1.4. DISTRIBUTION SYSTEM
The distribution system does not currently meet the minimum pressure requirements. The entire
distribution system will require a booster pump to meet the minimum pressures. The existing booster
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pump will need to be replaced with a booster skid that has a redundant pump plumbed into the system.
This pump can be installed in a vault or a small building.
8.2. ADDITIONAL RECOMMENDED SYSTEM IMPROVEMENTS
It is recommended that BMGR build a new pumphouse for its pump systems and move the storage tanks
as close as possible to the booster pumps to reduce dynamic losses in the suction line. At a minimum,
the tanks need to be moved to a lower elevation to allow the springs to gravity flow into and fill the
tanks completely. If the tanks remain at the spring area, then they will need to be buried so the top of
the tanks are lower in elevation than the spring. This might not be possible as the maximum flood
elevation could be higher than the top of the tanks. Relocating the tanks could prevent this extra work,
provide the same benefit to the system, and moving them away from the river channel would also
remove the maximum flood elevation concern. Constructing a pumphouse will provide protection to the
booster pumps, control panels, and provide easier access for maintenance than an underground vault.
It is estimated that the total cost of all recommended improvements would be approximately $200,000.
A more detailed cost estimate can be found in Appendix B.
9. CONCLUSION
This analysis and report have been prepared in accordance with the applicable State minimum level of
service criteria. The analysis results show that improvements will need to be made to bring the BMGR
system in compliance with UAC and DDW requirements. The recommended improvements are as
follows:
• Change applications will need to be filed for water rights
• Sweetwater Spring will need to be redeveloped and the site improved.
• Properly sized storage tanks will need to be constructed or installed
• Properly sized booster station will need to be installed.
It is also recommended to move the tanks away from the spring collection area and to construct a
pumphouse for the booster station, but these recommendations are not a requirement to become a
PWS.
Jones & DeMille Engineering
Page A-1 Project #: 2405-044

APPENDIX A. HYDRAULIC MODEL OVERVIEW MAPS

"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
SweetwaterCreek
Booster Pump
500 Gallon
Storage Tank
500 Gallon
Storage
Tank
Spring
Collection
Area
Spring Collection Area
J12
J14
J16
J18
J20
J22
J24
J26
J28
J30J32
J34
J38
J40
J42
J44
J46
J48
J50
J52
J56
J60
J62
Colorado
Yurt #4
Mongolian
Yurt #3
Mongolian
Yurt #2
Mongolian
Yurt #1
Cabin #3
Cabin #2
Cabin #1
Main
Lodge/Restaurant
Siloon
BathHouse
1
Scale: 1" = 100'
Garfield County,
Utah
Last Edit: 09/05/2024Drawn by: TAS 08-24Project Number: 2405-044
Map Name: H:\JD\Proj\2405-044\GIS\Projects\2405-044_Design\2405-044_Design.aprx - PDD Existing System Overview
Boulder Mountain Guest Ranch Engineering Evaluation Report
Existing System Overview
JH Sweetwater, LLC
Junction
Spring
Storage Tank
"Booster Pump
Creek
Culinary Water Line
High Pressure Zone
Low Pressure Zone
0 50 100
Feet
±
"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
2"
SweetwaterCreek
Booster Pump
500 Gallon
Storage Tank
500 Gallon
Storage
Tank
Spring
Collection
Area
Spring Collection Area
49.39
51.57
54.05
58.22
8.91
57.18
21.28
0.13
1.6
53.11.73
8.58
-0.8
9.95
13.02
21.11
17.97
56.25
49.35
-3.04
53.45
1.19
49.62
Colorado
Yurt #4
Mongolian
Yurt #3
Mongolian
Yurt #2
Mongolian
Yurt #1
Cabin #3
Cabin #2
Cabin #1
Main
Lodge/Restaurant
Siloon
BathHouse
1
Scale: 1" = 100'
Garfield County,
Utah
Last Edit: 09/05/2024Drawn by: TAS 08-24Project Number: 2405-044
Map Name: H:\JD\Proj\2405-044\GIS\Projects\2405-044_Design\2405-044_Design.aprx - PDD Pressure Overview
Boulder Mountain Guest Ranch Engineering Evaluation Report
PDD Pressure Overview
JH Sweetwater, LLC
Junction Pressure
50.1 - 60 psi
30.1 - 50 psi
10.1 - 30 psi
2.1- 10 psi
0.1 - 2 psi
- 4 - 0 psi
Spring
Storage Tank
"Booster Pump
Creek
Culinary Water Line
High Pressure Zone
Low Pressure Zone
0 50 100
Feet
±
Jones & DeMille Engineering
Page B-1 Project #: 2405-044

APPENDIX B. COST ESTIMATE

Boulder Mountain Guest Ranch
Water System Improvements
By: Parker Vercimak
ITEM QUANTITY UNIT UNIT PRICE COST
1-1 Mobilization 1 LUMP 10,000.00$ 10,000.00$
1-2 Exploratory Excavation 10 HOURLY 300.00$ 3,000.00$
1-3 Clearing and Grubbing 1 LUMP 5,000.00$ 5,000.00$
1-4 Final Site Grading 1 LUMP 5,000.00$ 5,000.00$
1-5 Stock Tight Fence 350 L.F. 20.00$ 7,000.00$
1-6 12' Tube Gate 1 EACH 1,000.00$ 1,000.00$
1-7 Seeding 1 LUMP 1,500.00$ 1,500.00$
1-8 Spring Exploration Excavation 20 HOURLY 300.00$ 6,000.00$
1-9 2" Perforated Spring Collection Pipe 50 L.F. 30.00$ 1,500.00$
1-10 Washed Rock 40 C.Y. 150.00$ 6,000.00$
1-11 Filter Fabric 40 S.Y. 35.00$ 1,400.00$
1-12 Screened Native Semi-Impervious Fill 10 C.Y. 75.00$ 800.00$
1-13 24" Clay Cut-Off Wall 30 C.Y. 150.00$ 4,500.00$
1-14 40-mil HDPE Impermeable Liner 560 S.Y. 30.00$ 16,800.00$
1-15 Spring Collection Box 1 EACH 6,000.00$ 6,000.00$
1-16 2,500-gallon Water Storage Tank 2 EACH 3,000.00$ 6,000.00$
1-17 Booster Pump Skid 1 LUMP 20,000.00$ 20,000.00$
1-18 Pumphouse 1 LUMP 25,000.00$ 25,000.00$
1-19 Electrical 1 LUMP 5,000.00$ 5,000.00$
1-20 2" PVC Water Pipe 100 L.F. 30.00$ 3,000.00$
135,000.00$
25,000.00$
160,000.00$
1a. Pre-Construction Engineering Services 1 LUMP 16,000.00$ 16,000.00$
1b. Construction Engineering Services 1 LUMP 24,000.00$ 24,000.00$
200,000.00$
September 18, 2024
PRELIMINARY OPINION OF PROBABLE COST
TOTAL PROBABLE PROJECT COST
SPRING REDEVELOPMENT SUBTOTAL
Construction Contingency (20%)
SUBTOTAL