HomeMy WebLinkAbout20240131MorningView - PER & Facility Plan JRL 01-30-24 - Final.pdf.pdfPreliminary Engineering Report
&
Facility Plan
Morning View Water Company
Jefferson County, Idaho
PREPARED BY:
ASPEN ENGINEERING, INC.
JANUARY 30, 2024
RECEIVED
Wednesday, January 31, 2024 2:57PM
IDAHO PUBLIC
UTILITIES COMMISSION
Morning View Water Company Aspen Eng Job Number 2023.034
PER & Facility Page 2
Contents
Contents .......................................................................................................................................... 2
CHAPTER 1 Summary ................................................................................................................... 4
Introduction ........................................................................................................................... 4
Water Requirements .............................................................................................................. 4
Supply .................................................................................................................................... 4
Storage ................................................................................................................................... 4
Distribution ............................................................................................................................ 5
Water Quality and Regulations ............................................................................................. 5
Capital Improvement Program .............................................................................................. 5
Recommendations/Conclusions ............................................................................................ 5
CHAPTER 2 Introduction............................................................................................................... 6
History ................................................................................................................................... 7
Current Assets ....................................................................................................................... 7
DEQ Loan .................................................................................................................... 8
Operations/Administration .................................................................................................... 8
Rates ...................................................................................................................................... 8
CHAPTER 3 Existing System ........................................................................................................ 9
Supply .................................................................................................................................... 9
Treatment ............................................................................................................................ 10
Pressure Zone ...................................................................................................................... 10
Standby Power ..................................................................................................................... 11
Storage ................................................................................................................................. 11
Security ................................................................................................................................ 11
Telemetry System ................................................................................................................ 11
Distribution System ............................................................................................................. 12
Sewage System .......................................................................................................... 12
Water Losses .............................................................................................................. 12
CHAPTER 4 Water Requirements ............................................................................................... 14
Definition of Terms ............................................................................................................. 14
Demand ...................................................................................................................... 14
Consumption .............................................................................................................. 14
Peaking Factors .......................................................................................................... 15
Water Production ....................................................................................................... 15
Per Connection Demand ............................................................................................ 15
“Unaccounted-For” Water ......................................................................................... 15
Demand Projections ............................................................................................................ 16
Population Projections ............................................................................................... 16
Future Water Demands .............................................................................................. 16
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CHAPTER 5 Water Supply and Storage ...................................................................................... 17
Water Rights ........................................................................................................................ 17
Water Supply and Storage Requirements ............................................................................ 17
Water Supply Criteria ................................................................................................ 17
CHAPTER 6 Distribution ............................................................................................................. 20
Regulations .......................................................................................................................... 20
Peak Hour Demand Under Normal Operating Conditions .................................................. 20
Maximum Day Demand Under Normal Operating Conditions .......................................... 21
Current System Evaluation .................................................................................................. 21
Well Design ......................................................................................................................... 21
CHAPTER 7 Water Quality and Regulations ............................................................................... 22
Potential Contamination ...................................................................................................... 22
Potential Flooding ............................................................................................................... 23
Groundwater Analysis ......................................................................................................... 24
Ground Water Levels ................................................................................................. 24
Soil Conditions .......................................................................................................... 24
CHAPTER 8 Capital Improvement Program ............................................................................... 25
Cost Estimating ................................................................................................................... 25
Drill Water Supply Well ..................................................................................................... 25
Backup Power Generator .................................................................................................... 25
Schedule .............................................................................................................................. 26
Appendix A: Maps ...........................................................................................................................
Appendix B: Water Rights ...............................................................................................................
Appendix C: Well Logs ...................................................................................................................
Appendix D: Water Production Data ...............................................................................................
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CHAPTER 1 Summary
Introduction
The Morning View Water Company (MVWC), a subsidiary of Falls Water Co. Inc., has contracted
with Aspen Engineering to complete a Preliminary Engineering Report and a Facility Plan for the
Morning View water system. This document serves as both reports. This report serves as the basis
of design for modifications.
The findings of this study are summarized below:
Water Requirements
The population serviced by MVWC is approximately 400 people via approximately 138 active
individual connections. Morning View Water Company's historical average daily demand (ADD)
for the years 2021 through 2023 was 125,948 gallons. This water system’s main well is located at
3990 E 178 N, Rigby, ID.
Supply
MVWC currently utilizes groundwater as its sole source of water. The groundwater is mainly
supplied by one well. There are two other older wells that produce a very limited amount of water.
Both old wells are located on a single lot and are separated by 100 feet. Aspen Engineering is
proposing that both older wells, known as Wells 1 & 2 within the report, be replaced. All the wells
lie within the Company’s platted service area. Total pumping capacity of the active production
well is estimated at 940 gpm or 1,353,600 gallons per day, which is about 11 times the system
ADD.
The current firm capacity (largest well out of service) of the Company’s production wells is 200
gpm or 288,000 gallons per day. Current firm capacity does not meet PHD or MDD (Peak Hourly
Demand or Maximum Daily Demand) flow requirements, and a backup well is needed
immediately, in the event of a well failure.
Storage
There is no current storage at the Morning View Water system.
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Distribution
The distribution system is composed of both 4 inch and 6-inch main lines. These mains are
exclusively class 200 PVC. Any future expansions should continue to incorporate similar
materials throughout the distribution system. The water system does not have fire hydrants, and
the distribution mains are adequate to supply domestic flows.
Water Quality and Regulations
All of Morning View’s water is supplied by groundwater wells. The water quality is good, and
compliance with both State and Federal regulations for contaminants is currently being maintained.
Currently, there is no water treatment provided at the MVWC facilities.
Capital Improvement Program
A new backup well with adequate capacity to meet the firm ADD demand must be planned and
completed as soon as possible. The estimated cost to complete the new well and pump is $235,000.
Additionally, it is recommended that backup power generation be provided for the new well to
prevent depressurization events during power outages. We recommend using a VFD pump
controller on the new well. Leaks in the mainline contribute to significant pumping losses and
should be found and repaired.
Recommendations/Conclusions
Providing and maintaining adequate water supply in the event of a failure in well #3 and
minimizing leaks are the main concern for the MVWC water system. System operating pressures
are currently maintained at about 58 psi. Immediate construction of a backup well is recommended
to ensure adequate water production for the current and future demands.
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CHAPTER 2 Introduction
The Morning View Water Company (MVWC), a subsidiary of Falls Water Company, is a privately
held public drinking water system that is currently regulated by the Idaho Public Utilities
Commission. The system services approximately 138 single family residences in an
unincorporated area of Jefferson County Idaho, near the city of Rigby. The intended purpose of
this report is to provide an assessment of the existing water system and provide recommendations
to maintain and improve the facilities.
The following topics are contained in the report:
• Existing System (Chapter 3)
• Water Requirements (Chapter 4)
• Water Supply and Storage (Chapter 5)
• Distribution (Chapter 6)
• Water Quality and Regulations (Chapter 7)
• Capital Improvement Plan (Chapter 8)
The following acronyms are contained in the report:
• MVWC – Mountain View Water Company
• VFD – Variable Frequency Drives
• ADD – Average Daily Demand
• MDD – Maximum Daily Demand
• MMD – Maximum Month Demand
• PHD – Peak Hour Demand
• EPA – Environmental Protection Agency
• SDWA – Safe Drinking Water Act
• DEQ - Department of Environmental Quality
• IPUC – Idaho Public Utilities Commission
• gpm – Gallons per minute
• gpd – Gallons per day
• mgd – million gallons per day
• cfs – cubic feet per second
• gph – gallons per hour
• cf – cubic foot
• PF MDD – Peaking factor of Maximum Daily Demand
• PF PHD – Peaking factor of Peak Hour Demand
• gpdpc – gallons per day per connection
• USGS – United States Geological Survey
• IDWR – Idaho Department of Water Resources
• psi – Pounds per square inch
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• fps – feet per second
• AACE – American Association of Cost Engineers
• KW - kilowatt
The report covers the current configuration of the water system as well as a projection of three
years from now when the system will likely be finished - i.e. all lots sold and occupied. As a
reference for development time frame, in 2002 the system serviced approximately 65 connections.
As of 2023 there are about 138 connections and only 3 more connections are expected to be added
in the coming years.
History
Since Falls Water acquired MVWC’s water system in 2021, water quality has exceeded all
applicable state and federal requirements. MVWC’s water system registered number with Idaho
DEQ is: ID7260063.
Current Assets
Current assets of MVWC include three deep wells, a 30' x 32' wood frame pump house, a second
13’x20’ wellhouse, and 2.5 miles of distribution lines. Pump house #1 encloses a 40-gallon air
compressor, meters, valves, and piping. The following table presents the various components and
their anticipated useful life and replacement data.
Morning View Water Company - Capital Replacement
Item
Date Installed
Anticipated Life
Cycle
Replacement
Date
Replacement
Cost
30 well pump
February 2021
15 years
2036
$6,000
10 well pump
July 2007
15 years
2022
$4,000
60 well pump August 2014 15 years 2029 $15,000
Motor
Controllers
2002
10 years
2012
$5,000 Ea
Well House #1
1998
40 years
2038
$50,000
Flushing
Hydrants
2007
20 years
2027
$500 Ea
Well House #2 2014 40 years 2054 $40,000
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VFD-ABB
Brand AC 550
2014 20 years 2030 $12,000
VFD-ABB
Brand AC 6500
2014 20 years 2030 $12,000
DEQ Loan
Before it was acquired by Falls Water, MVWC applied for a state-revolving fund loan through the
Idaho DEQ to construct a new well. This well is labeled as well #3 in this report. It was drilled in
August 2014. When MVWC was acquired by Falls Water in 2021, they continued the loan
payment to Idaho DEQ. The original loan started on February 7, 2017, and was $462,969.38. It is
to be paid back at an interest rate of 1.25% semiannually with payments of $9,277.77. Falls Water
has taken responsibility for the loan.
Operations/Administration
Falls Water maintains an office located at 2180 N Deborah Dr, Idaho Falls, ID 83401. The office
handles billings, customer service, complaints, notifications to its customers and correspondence
with DEQ and the Idaho Public Utilities Commission (IPUC).
Operations plans include a daily check of the well house with written record keeping of water
pressure, pressure tank air levels, flow rate and flow totalization.
Rates
As shown in the table below, customers pay a flat rate according to the size of the lot being
serviced. One acre lots are charged $65.50/month, one-half acre lot fees are $60.00/month and
quarter acre lots fees are $50.00/month. The first 11,000 gallons used in the first-tier block are
included in the monthly minimum charge. The second-tier usage charge is $0.64 per 1,000 gallons
for the next 22,000 gallons used. For usage above 33,000 gallons, the third-tier rate is $1.439 per
1,000 gallons.
Meter Size
New
Approved
Monthly
Minimum
Charge
First
Tier
Block
Rate
Gallons
in First
Tier
Block
Second
Tier
Block
Rate
Gallons
in
Second
Tier
Block
(Next)
Third
Tier
Block
Rate
Gallons
in Third
Tier
Block
(Over)
MV .25 Acre – ¾” & 1” $50.00 $0.00 11,000 $0.640 22,000 $1.439 33,000
MV .50 Acre – ¾” & 1” $60.00 $0.00 11,000 $0.640 22,000 $1.439 33,000
MV 1.0 Acre – ¾” & 1” $65.50 $0.00 11,000 $0.640 22,000 $1.439 33,000
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CHAPTER 3 Existing System
The existing MVWC water system includes three wells and approximately 11,000 feet of six-inch
diameter class 200 PVC water main. 2,300 feet of four-inch diameter, class 200 PVC is also
included on the system. A map of the system and its features is shown in Appendix A:
Maps.
The current service area for the MVWC includes 109 acres located in the Morning View Acres
Divisions 1, 2, 3, and 4. Division No. 1 of Country Grove Estates Mobile Home Subdivision is
also included in the system. There are currently 138 connections to single family residences.
Residences include site constructed homes (stick built), mobile trailer homes, and manufactured
homes on permanent foundations.
Lot sizes range from one quarter of an acre to just over one acre in area. The smaller lots are
typically occupied by either mobile trailer houses or manufactured homes. Stick built single family
residences generally occupy the larger lots.
Future growth within the existing service area boundary will include water service connections to
3 lots in the stick-built divisions. This will make a total of 141 individual connections to the system.
It is estimated that the system will be fully developed within the next three years.
Supply
Well 1 – Prior to drilling Well #3, this well was the main production well for the MVWC water
system. Well #1 is a 12-inch diameter well and is approximately 120' deep. The well is located on
“well lot #1” at the northwest corner of Division No. 3. The well lot comprises 1.64 acres. The
well log shows it was completed in July 1996 and is cased to a depth of 118 feet. This well has
not been pump tested and the actual well capacity is unknown. Currently a 30-horsepower
submersible pump is installed in the well. This well is currently used only as a backup well as it
discharges too much sand and is not deep enough into the earth to be a functioning production
well. Aspen Engineering recommends that this well be abandoned, after construction of the
replacement well.
Well 2 - The old backup well is a six-inch diameter well that is 120 feet deep. According to the
well log, this well has a surface seal 18 feet deep and was constructed in June 1986. No pump test
data is available and a 10 horsepower submersible pump services the well. This well does not
produce enough water to be a significant resource and is only used as an emergency source.
Well 3 - The main well for the MVWC water system is a 12-inch diameter well approximately
176' deep. The well is located on “well lot” at the southwest corner of Block No. 3. The second
well lot comprises 0.354 acres. The well log for this well shows it was completed in August 2014
and is cased to a depth of 154 feet. This well has been pump tested and the actual well capacity is
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940 gpm. Currently a 60-horsepower submersible pump is installed in the well.
Wells 1 and 2 feed into a single pump house via separate pitless adapters and buried six-inch
diameter pipes. Wells 1 and 2 are both equipped with ABB VFD pump controllers.
Well 3 and well house 2 are located on the south-west well lot of morning view acres #4. Well 3
is equipped with an ABB brand VFD pump controller. The well house is 13’x20’, has a 6” pipe
system, and contains a backup generator.
Water quantities are monitored using a totalizer/flow meter located in each pump house. The
meters read the instantaneous flow through the meter as well as providing the total quantity passing
the meter (totalizer). Wells 1 and 2 were run through a single meter, Well 3 has its own meter,
and after abandoning Wells 1 and 2, Well 4 will use that meter. After this upgrade each operating
well will have its own meter. The water quality of well #3 currently meets drinking water
regulations. Chapter 7 includes dialog of compliance with drinking water regulations.
Treatment
Well 3 doesn’t require any treatment. For wells 1 and 2 the only treatment currently in operation
is to separate sand from the well production water. The sand separator consists of a centrifugal
type separator with raw water being fed into the unit, centrifugal action then separates the heavier
sand particles which fall to the bottom of the unit and treated water is returned to the top of the
unit and put into the distribution system. The unit operates manually, and the only maintenance
required is to purge the solids from the bottom chamber of the unit on a periodic basis. A
determination of how often this is required can be made by flushing the solids into a bucket and
then measuring the amount of sand produced per unit of water. It is likely the unit will operate at
peak efficiency with only weekly or bi-weekly purging. No other treatment or treatment
equipment is provided or necessary.
For emergency circumstances manual dosing of the individual wells would be required to treat a
bacteriological outbreak, should one occur. The water company may want to purchase an
emergency chlorination system to provide emergency disinfection capabilities.
Pressure Zone
The entire system is served by a single pressure zone. System pressures throughout the
development are established by the VFD setting at each of the pump house buildings. The pressure
settings have been adjusted to operate near 58 psi. This pressure is measured at the pump building
and customer pressures at the point of use will vary due to friction losses and the variation in
demand especially during peak demand hours. The pressure settings at the pump building can be
adjusted to provide a two-pound differential.
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Based on the information obtained from pressure monitoring, the system consistently operates
above the minimum pressure of 40 psi.
The current system includes variable frequency drives (VFD) that are installed in the pump house
for each of the submersible well pumps. Each VFD can be set to maintain 60 psi and so long as
the pumps can keep up with demand, operating pressures currently remain constant within plus or
minus 3-4 psi.
Standby Power
Currently there is standby power or emergency power generation equipment at the MVWC system
for the main well #3 in use. The proposed backup well should also have standby power in the event
of an area wide power failure.
It was estimated by MVWC personnel that power outages account for system shutdown 3-4 times
per year. Typically, outages occur during strong weather events such as high winds or heavy
thunder showers.
Storage
There are currently two Xtrol 350 bladder tanks in well house #1. However, these two tanks are
required for proper operation of the VFDs, do not provide a significant amount of storage, and are
not available as storage for customer needs. There are no plans for water storage at MVWC.
Security
Both existing well houses have fences with barbwire, lighting, and water system alarms. They are
maintained and no issues have been reported. As there have been no issues, there are no
improvements suggested for the security of this system.
Telemetry System
Telemetry at the MVWC water system is a Missions Communications 123 system. The three wells
are operated by electronic pressure transducers located in the pump houses. There are no required
or recommended system controls improvements at the time of this report.
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Distribution System
Water distribution for the Morning View system includes approximately 11,000 feet of six-inch
pipe and 2,300 feet of 4" pipe. All the pipe consists of class 200 polyvinyl chloride (PVC). A map
of the existing water distribution system, including pipe sizes, is presented in Appendix A:
Maps. Flushing hydrants at the three dead end locations have been installed. There are no fire
hydrants on the system.
Service connections are exclusively one inch and are typically polyethylene. There are seventeen
control valves within the distribution system, four of which are four-inch valves controlling flow
to the two four-inch diameter loops - one at the east end of the system and the other from the two
cul-de-sacs on 3950 East. The maximum number of residents on one continuous, isolatable loop
is at 178 North where there are 32 trailers on one loop. Generally, there are adequate valves to
isolate ten to twelve homes without interrupting the water service to others. Each home is metered,
and the water usage is recorded for each home, clients are then billed accordingly.
Periodic flushing of the dead-ends should be completed. A written plan identifying when each
location is/was flushed and the results of the flushing (i.e. water conditions, turbidity, etc.) should
be included in the operations. Dead end mains should be flushed at least twice per year.
Cross-connection contamination of the distribution system is controlled using backflow prevention
devices, generally consisting of a Pressure Vacuum Breaker (PVB) assembly or other approved
back-flow prevention device. Check devices are required to be inspected and tested after the initial
installation with written verification given to either the owner/operator or the office manager.
Periodic testing of the valves is not currently part of the operation plan and should be implemented.
The cost of testing each device should be charged to the homeowner. Records showing the location
of the device, along with the test date and results should be kept on a master plan at the office.
The proposed cross connection control plan has been submitted to DEQ.
Sewage System
Regarding the sewer system, all homes within MVWC are on private septic systems with
individual drain fields located on each lot. Interference with the water system has not been
experienced and no contamination issues have been reported. Connection to the City of Rigby
sewer collection system could be explored if water quality problems are encountered.
Water Losses
Recently there has been a leak that is being investigated by Falls Water, the parent company of
MVWC, as the water losses have been about 60% during non-irrigation season and about 20%
losses during irrigation season. Due to these significant losses, we recommend using and/or
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obtaining sonar tracking equipment to help with leak detection and repair. The equipment is
portable and could be used at each of the company’s water systems.
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CHAPTER 4 Water Requirements
This chapter summarizes the current water system demands and projects future water use for 3 and
20-year planning horizons. This includes a description of historical water use and forecasting
estimates developed to project future water use.
Definition of Terms
Demand
Demand refers to the total system demand, which is that quantity of water obtained from the water
supply source during a given time period required to meet the needs of domestic use, lawn
irrigation, system losses, and miscellaneous applications. Demands are normally discussed and
quantified in terms of flow rates, such as gallons per minute (gpm) or gallons per day (gpd). Flow
rates can be described in any terms involving a given volume of water delivered during a specific
time. Flow rates pertinent for the analysis and design of water systems are as follows:
Average Day Demand (ADD): the total volume of water delivered to the system in a year, divided
by 365 days.
Maximum Month Demand (MMD): the average rate of water delivered to the system during the
month of greatest demand during the year.
Maximum Day Demand (MDD): the rate of water delivered to the system during the day of highest
demand during the year.
Peak Hour Demand (PHD): the rate of water delivered to the system during the hour of highest
demand during the year.
These demands are typically presented in units of mgd. The following conversion factors may be
used to express rate of demand in other terms:
1 mgd = 694 gpm = 1.55 cubic feet per second (cfs)
1 gpm = 60 gallons per hour (gph) = 1,440 gpd
1 cfs = 450 gpm = 0.648 mgd
Volumetric conversions are:
1 cubic foot (cf) = 7.481 gallons (gal)
1 gallon = 0.134 cubic feet (cf)
The concept of per capita demand provides a convenient method of comparing water use by
different water systems or areas served by the system. The per capita demand is obtained by
dividing the total system demand by the total population served. Differences in climate, type of
development, and water use trends influence the per capita demand for different water systems.
Consumption
Consumption refers to the actual volume of water used by customers measured at their connections
to the water distribution system. Consumption is typical1y measured in gallons.
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Peaking Factors
The relationships between the ADD and other demand parameters, such as the MDD, MMD, and
PHD, are expressed as peaking factors. Typical peaking factors include the ratios of MDD to ADD,
MMD to ADD, and PHD to ADD.
Water Production
Available historical water production data is presented in Appendix D:
Water Production Data. The available historical data inc1udes limited readings for both Well 1, 2,
and 3 during the period.
TABLE 4-1 Average Day Demand - ADD for Morning View Water Company
Year
ADD (gallons)
2021
129,926
2022
130,462
2023 (year to date)
117,458
Based on historical averages from Table 4-1, a MDD (PF MDD) peaking factor of 3.0 will be used
in this study. A value of 5.0 will be used as the PHD peaking factor (PF PHD).
Per Connection Demand
The population serviced by MVWC is approximately 400 people via approximately 138 active
individual connections. Morning View Water Company's historical average daily demand (ADD)
for the years 2022 through 2023 was 124,000 gallons.
Morning View’s customer base is exclusively residential. Given the rather insignificant demand
currently exerted by other uses, future water demand is estimated in this report solely on the
residential growth projected for the area.
“Unaccounted-For” Water
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“Unaccounted-for” water is the difference between the volume of water produced and the volume
of water sold to customers. Unaccounted-for-water in a metered community is typically the result
of system leakage or unmetered customers.
Demand Projections
Population Projections
Land uses surrounding the MVWC system are generally residential, single-family homes. The
area immediately south of the platted subdivision has been platted and developed as single-family
homes with individual wells. Immediately north is developed land and a public elementary school
that has been connected to city water lines. To the east, the ground has been subdivided into
residential lots, but infrastructure and homes have not been constructed. MVWC is focused on
servicing current customers and the 3 potential connections located within the current service area.
To the west of the trailer home area is some undeveloped land. If it is developed, MVWC would
be interested in supplying their services to the new homes. The possible expansion of the service
area to the east or west would require drilling of a new well. Under the current system layout, it
has been estimated that a maximum additional three stick-built homes may be added to the system
as the remainder of the lots are sold and built on in Divisions one through three of Morning View
Acres. This will increase the total number of connections to 141 for the entire system. No other
growth has been estimated.
Future Water Demands
Currently, the MVWC system accommodates about 400 people via 138 connections. Ultimately
it is conceived that the state average of 2.9 people per connection will be served via the same 138
connections plus 3 more lots in the stick-built homes making a total of 141 connections and 409
people. It is anticipated that the 3 additional lots will be built out by the end of the year in 2026 -
three years from now. Producing the following results which are expected to stay the same over
the coming years:
Current Estimated
ADD = 124,000 gpd
MDD = 399,200 gpd
PHD = 496,000 gpd
While these projected water demands provide a basis for planning purposes and are used in other
portions of this report, they must be considered estimates. If growth from outside development is
allowed, then significant increases from the predicted annual rates will occur and demands will be
much higher than predicted. Unit demand patterns may also change, and these patterns would
influence water needs for the community. Therefore, the projected demands should be compared
each year to actual demands. The timing for recommended improvements can then be adjusted as
needed.
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CHAPTER 5 Water Supply and Storage
Topics covered in this chapter include water rights, and anticipated water supply and storage needs.
Water Rights
Table 5-1 contains water rights information for the MVWC. Refer to Appendix B:
Water Right for a copy of the current water rights information. A water right permit is the
authorization necessary from the Idaho Department of Water Resources (IDWR) to begin
construction of withdrawal facilities and begin using water. A license is only issued once water
has been used and documentation of use is submitted and approved by IDWR. A water rights
permit does not guarantee water for the appropriator. A decreed right is a water right that has been
adjudicated by the court. Under the prior-appropriation doctrine, the water right authorizes
diversions of water only to the extent that water is available.
TABLE 5-1
Morning View Water Company - Water Rights
Source
Pumping
Rate (gpm)
Priority Date
Right No.
Stage
Water Right
cfs (gpm)
Groundwater
600
10/10/1995
25-7593
License
0.79 (355)
Groundwater 250 09/04/2007 25-14199 License 0.83 (373)
Groundwater 150 07/06/2009 25-14236 License 0.25 (112)
Water Supply and Storage Requirements
Currently there is no storage provided in the MVWC system. Wells #1 and #2 are no longer
functioning, and well #3 is providing flow to the community. A new backup well is needed.
Water Supply Criteria
The following is a list of key criteria outlined in the Idaho Rules for Public Drinking Water
Systems used to determine the timing and development of new water supply wells, storage, and
emergency power generation capability for the MVWC water system.
• The water system must have a sufficient number of water supply wells with backup power
to satisfy ADD or emergency storage equal to one days ADD.
• The water system must have enough firm pumping capacity to satisfy MDD.
• Firm pumping capacity combined with additional storage must be sufficient to supply Peak
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Hour Demand.
• Total system capacity including supply and storage must be sufficient to meet MDD while
maintaining a 40-psi residual throughout the system.
In this report, firm pumping capacity is defined as the production capacity of the water supply
wells in the system with the largest well out of service.
This chapter explores these criteria using the water demand projections listed above, to determine
the capital improvements needed for the water system during the 3-year and 20-year plan horizons.
Criterion 1: Firm Well Production Capacity Required to Satisfy MDD
The first criterion involving MDD during the 20-year planning period is used to determine well
supply requirements for the Morning View water system.
The current well pumping capacity totals approximately 940 gpm or 1,353,600 gpd. However, if
a malfunction of well #3 occurs which solely produces this water occurs, no water will be
produced. So, a backup well needs to be implemented.
Criterion 1 Summary: Anticipated Firm Capacity Requirements to Satisfy MDD
The Company will need to construct a new backup well immediately with a capacity of nearly 600
gpm like Well #3.
Criterion 2: Emergency Power Required to Satisfy ADD
The second criterion involving ADD is used as a means of determining the emergency power
requirements for the MVWC water system.
A comparison of the available supply capacity of Well 3 (720,000 gpd), which is equipped with
backup power, shows that the MVWC water system currently does not have backup power to
supply ADD requirements now or for the projected 20-year horizon. An option to include backup
power for the new well #4 could be beneficial.
Criterion 2 Summary: Anticipated Emergency Power Requirements
Emergency backup power is necessary to maintain the required minimum 20 psi. Idaho DEQ
requires substantial sampling if a loss of pressure event occurs. Loss of pressure is defined by
DEQ as any pressure less than 20 psi under emergency operations and less than 40 psi under
normal operating conditions.
Criterion 3 Well Capacity and Storage Must Satisfy PHD
The following is a list of assumptions that are used to calculate required well capacity and storage
Morning View Water Company Aspen Eng Job Number 2023.034
PER & Facility Plan Page 19
volume required under these criteria:
• The PHD must be supplied for up to 8 hours.
• Firm well capacity is not less than MDD.
Well 3 has adequate capacity to meet current demand, but a backup well is needed immediately.
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CHAPTER 6 Distribution
This chapter describes the capacity of MVWC's water distribution system. The distribution system
was evaluated under existing and future conditions.
Regulations
The Idaho DEQ has regulatory authority over public water systems in Idaho. In general, DEQ's
rules govern the quality of water distributed, but not the manner in which it is distributed. However,
the rules do contain basic construction standards and some of these apply to distribution systems.
Significant rules for the distribution system analysis are summarized as follows:
• Distribution piping and the supply system shall be designed and installed so that the
pressure measured shall not be reduced below 40 pounds per square inch (psi) during
maximum hourly demand conditions.
• Distribution piping and the supply system shall be designed and installed so that the
pressure measured shall not be reduced below 20 pounds per square inch (psi) during
maximum hourly demand conditions (including fire flow).
• Wherever possible, dead ends shall be minimized by looping. Where dead ends are
installed, blow-offs of adequate size shall be provided for flushing.
• Wherever possible, booster pumps shall take suction from reservoirs to avoid the potential
for negative pressures on the suction line, which could result when the pump suction is
directly connected to a distribution main. Pumps that take suction from distribution mains
shall be provided with a low-pressure cutoff switch on the suction side set at no less than
5 psi.
Peak Hour Demand Under Normal Operating Conditions
The PHD condition represents the average demand rate during the highest hour of water use for
the entire year. This is an extreme condition, but one that the system must be able to supply. Since
PHD has been estimated according to projected growth, the actual occurrence in the system may
be higher. It is also true that demands greater than MDD and approaching the peak hour value will
occur several times during a year.
The estimated 2023 PHD for the system is 496,000 gpd. PHD can be provided in the system with
adequate pressures (Adequate means that pressures are maintained above 40 psi). Pressures under
the current PHD can be maintained above 40 psi. As water demand increases under peak
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conditions, pipeline velocity can begin to be a problem; however, no pipes in the system exhibited
velocities significantly greater than 4 fps. In summary, no deficiencies were identified under the
current PHD.
Maximum Day Demand Under Normal Operating Conditions
The MDD condition represents the average demand rate over the highest day of water use during
the entire year. The water system must be designed to equal or exceed the MDD on a firm capacity
basis. When MDD is modeled under normal operating conditions, the distribution system can
provide water at adequate pressures.
The estimated MDD for 2023 is 399,200 gpd. No pipeline velocities greater than 4 fps were
identified and system pressures should remain above 40 psi.
Current System Evaluation
Based on the information given by the operator and observation at the pump building the system
appears to be capable of producing the required flow at adequate pressures. It is recommended to
monitor pressures for any location experiencing low pressure again during the 2023 irrigation
season.
Well Design
Information about well #4 and its design will be included in a future document about the design of
well #4.
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CHAPTER 7 Water Quality and Regulations
This chapter includes relevant water quality regulation information for MVWC’s reference, with
an accompanying description of how pertinent regulations affect the administration and operation
of the system. Surface water regulations are not discussed, as it is not anticipated that Morning
View will be utilizing surface water to meet current or future demands. The nearest surface water
body is an irrigation canal located south of Morning View about 1,170 ft. In addition, there is no
expectation that this improvement will affect the watershed or other water cycle operations.
As discussed in previous chapters, the water system relies solely on groundwater as its source of
water. Generally, the quality of the groundwater is good, meeting current Federal- and State-
established regulatory limits for inorganic chemicals (lOCs), synthetic organic compounds
(SOCs), volatile organic chemical (VOCs), lead and copper, co1iform, arsenic, and fluoride.
We will screen the new well, so the use of a sand separator is not anticipated.
Potential Contamination
As seen in Figure 1 Nitrate Area's and in Figure 2 Nitrate Impacted Wells there are no causes of
concern for contamination currently. Historically there are no causes for concern either. The area
around all wells is fenced in and exceeds requirements by code.
Figure 1 Nitrate Area's
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Figure 2 Nitrate Impacted Wells
It can be seen from Figure 3 Recorded Testing of Contaminants that there have been no reported
issues with contaminants in the last few years. These tables were taken from Idaho DEQ’s
website “Drinking Water Branch”. MVWC’s ID number in the record is: ID7260063. MVWC is
in compliance with all drinking water requirements.
Figure 3 Recorded Testing of Contaminants
Potential Flooding
For all wells the well casing extends 12” above ground elevation supporting IDAPA rules. If
there is a flood of greater magnitude, there would be issues.
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Groundwater Analysis
The purpose of this section is to show that the groundwater and geographically related areas have
been considered.
Ground Water Levels
As seen in Appendix C:
Well Logs, the static water level for the well currently in use (Well #3) is 20 ft below the ground.
As there are no subsurface structures the water elevation was found to be 4840 ft.
Soil Conditions
The soil is an alluvial deposited gravel, it is suitable for building on, and there are no concerns
from Aspen Engineering regarding the soil at MVWC for construction purposes.
CHAPTER 8 Capital Improvement Program
Recommended improvements from previous chapters are shown below and summarized in this
chapter, along with estimates of costs.
Cost Estimating
Cost estimates for proposed improvements presented are Order-of-Magnitude cost estimates. The
American Association of Cost Engineers (AACE) defines Order-of-Magnitude cost estimates as
estimates made without detailed engineering data. These estimates may be developed using cost
curves, scale-up or scale-down factors, or an approximate ratio. AACE defines the accuracy for
this level of estimate as plus 50 percent to minus 30 percent.
The cost estimates presented below have been prepared for guidance in project evaluation and
implementation from the information available at the time of the estimate. The final costs of the
project will depend on actual labor and material costs, competitive market conditions, final project
costs, implementation schedule and other variable factors. As a result, the final project costs will
vary from the estimate presented herein. Because of this, project feasibility and funding needs must
be carefully reviewed prior to making specific financial decisions to help ensure proper project
evaluation and adequate funding.
Drill Water Supply Well
The cost to drill a new well assumes 12-inch diameter open hole production wel1 240 feet deep.
The estimate includes costs for a pilot hole and final production well, and assumes the Company
owns the well lot. A 30 percent allowance for contingency, engineering, administration, and legal
cost is included in the estimate. The estimated cost to drill a new water supply well is $23,000.
Backup Power Generator
Natural gas or diesel generated power to run the submersible pump and controller at the pump
building will require an 80 to 100 KW generator. Anticipated cost for purchase and installation of
the generator including concrete pad and weather enclosure is $50,000.
Schedule
The anticipated construction schedule will be based on obtaining adequate funding. The time
frame begins when funding is implemented with the following milestones:
• 45-60 days complete design.
• 20-30 days DEQ review of design
• 7-15 days Comment Resolution
• 15-28 days contractor bidding process
• 30-45 days drilling of new well
• 7-10 days well testing (well capacity pumping test)
• 7-10 days set pump/electrical connection
Appendix A:
Maps
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COPYRIGHT 2023
by
ASPEN ENGINEERING, INC.All rights reserved.
Reproduction or translation of
any part of this work without written
permission of ASPEN ENGINEERING isunlawful.
Violators will be prosecuted.
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COPYRIGHT 2023
by
ASPEN ENGINEERING, INC.All rights reserved.
Reproduction or translation of
any part of this work without written
permission of ASPEN ENGINEERING isunlawful.
Violators will be prosecuted.
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Appendix B:
Water Right
Water Right Report : 25-7593( License/Active)
Owner Type Name Address City State Postal Code
Current Owner FALLS WATER CO INC 2180 N DEBORAH DR IDAHO FALLS ID 83401-6223
Original Owner MORNINGVIEW WATER CO INC PO BOX 598 RIGBY ID 83442
Priority Date : 10/10/1995Basis : License
Status : Active
Source Source Qualifier Tributary Tributary Qualifier
GROUND WATER
Source Township Range Section Govt. Lot QQQ QQ Q County Diversion Type
GROUND WATER 04N 39E 30 0 NW NE JEFFERSON
GROUND WATER 04N 39E 30 0 NW NE JEFFERSON
Beneficial Use From To Diversion Rate Volume
IRRIGATION 04/01 10/31 0.46 CFS 92.00 AFA
DOMESTIC 01/01 12/31 0.33 CFS 28.80 AFA
TOTAL 0.79 CFS 120.80 CFS
Place of Use Legal Description : IRRIGATION (JEFFERSON county)
Place of Use Legal Description : DOMESTIC (JEFFERSON county)
Irrigation Totals
Total Acres Acre Limit
23.00
Code Condtions
Water Right Owners
Water Right Status
Water Source
Points Of Diversion (Location)
Water Uses
Places of Use
Printable View Paged View
Township Range Section Lot QQQ QQ Q Acres
04N 39E 30 NE NE 9
04N 39E 30 NW NE 14
Township Range Section Lot QQQ QQ Q Acres
04N 39E 30 NE NE
04N 39E 30 NW NE
Conditions
R05 Use of water under this right will be regulated by a watermaster with responsibility for the distribution of water among appropriators within a
water district. At the time of this approval, this water right is within State Water District No. 120.
X35 Rights 25-14199 and 25-7593 when combined shall not exceed a total diversion rate of 0.83 cfs for in-house non-consumptive purposes and
0.46 cfs and 92 afa for the irrigation of 152 lots.
132 Domestic use is for 48 homes. Irrigation of lawn, garden and landscaping associated with the home is authorized under the irrigation
component of this right.
X60 Place of use is located within Morningview Subdivision.
004 The issuance of this right does not grant any right-of-way or easement across the land of another.
048 The use of water under this right shall not give rise to any claim against the holder of a senior water right based upon the theories of
forfeiture, abandonment, adverse possession, waiver, equitable estoppel, estoppel by laches or customary preference.
R64 This right when combined with all other rights shall provide no more than 0.02 cfs per acre nor more than 4.0 afa per acre at the field
headgate for irrigation of the place of use.
Dates
Licensed Date : 1/31/2012
Decreed Date :
Permit Proof Due Date : 7/1/1994
Permit Proof Made Date : 10/10/1995
Permit Approved Date : 7/15/1991
Permit Moratorium Expiration Date :
Enlargment Use Priority Date :
Enlargement Statute Priority Date :
Application Recevied Date: 5/14/1991
Protest Deadline Date:
Other Information
State or Federal :
Water District Number : 120
Generic Max Rate Per Acre : 0.02
Generic Max Volume Per Acre : 4
Civil Case Number :
Decree Plantiff :
Decree Defendant :
Swan Falls Trust or Nontrust : T
Swan Falls Dismissed :
DLE Act Number :
Cary Act Number :
Mitigation Plan: False
IDAHO DEPARTMENT OF WATER RESOURCES 1/29
Water Right Report : 25-14199( License/Active)
Owner Type Name Address City State Postal Code
Current Owner FALLS WATER CO INC 2180 N DEBORAH DR IDAHO FALLS ID 83401-6223
Original Owner MORNINGVIEW WATER CO INC PO BOX 598 RIGBY ID 83442
Priority Date : 9/4/2007Basis : License
Status : Active
Source Source Qualifier Tributary Tributary Qualifier
GROUND WATER
Source Township Range Section Govt. Lot QQQ QQ Q County Diversion Type
GROUND WATER 04N 39E 30 0 NW NE JEFFERSON
GROUND WATER 04N 39E 30 0 NW NE JEFFERSON
GROUND WATER 04N 39E 30 1 NW NW JEFFERSON
Beneficial Use From To Diversion Rate Volume
DOMESTIC 01/01 12/31 0.83 CFS 156.00 AFA
TOTAL 0.83 CFS 156.00 CFS
Place of Use Legal Description : DOMESTIC (JEFFERSON county)
Code Condtions
X01 Domestic use is for 130 homes.
X35 Rights 25-14199, 25-14236 and 25-7593 when combined shall not exceed a total diversion rate of 0.83 cfs for in-house non-consumptivepurposes for 152 homes, and 0.46 cfs and 92 AFA for the irrigation of 152 lots.
R05 Use of water under this right may be regulated by a watermaster with responsibility for the distribution of water among appropriators withina water district. At the time of this approval, this water right is within State Water District No. 120.
213 Upon specific notification of the Department, the right holder shall install and maintain data loggers to record water usage information at the
authorized point(s) of diversion in accordance with Department specifications.
Water Right Owners
Water Right Status
Water Source
Points Of Diversion (Location)
Water Uses
Places of Use
Printable View Paged View
Township Range Section Lot QQQ QQ Q Acres
04N 39E 30 NE NE
04N 39E 30 NW NE
04N 39E 30 NE NW
04N 39E 30 1 NW NW
Conditions
212 Prior to diversion and use of water under this right, the right holder shall install and maintain acceptable measuring device(s) at the
authorized point(s) of diversion, in accordance with Department specifications.
070 The irrigation occurring under this domestic use shall not exceed 1/2 acre within each platted subdivision lot upon which a home has been
constructed. This right does not provide for irrigation of common areas or for irrigation of lots upon which homes have not been constructed.
071 The domestic use authorized under this right shall not exceed 13,000 gallons per day per home.
Dates
Licensed Date : 6/25/2020
Decreed Date :
Permit Proof Due Date : 11/19/2022
Permit Proof Made Date : 5/8/2020
Permit Approved Date : 1/22/2010
Permit Moratorium Expiration Date :
Enlargment Use Priority Date :
Enlargement Statute Priority Date :
Application Recevied Date: 7/31/2007
Protest Deadline Date: 9/24/2007
Other Information
State or Federal :
Water District Number : 120
Generic Max Rate Per Acre : 0
Generic Max Volume Per Acre : 0
Civil Case Number :
Decree Plantiff :
Decree Defendant :
Swan Falls Trust or Nontrust : T
Swan Falls Dismissed :
DLE Act Number :
Cary Act Number :
Mitigation Plan: False
IDAHO DEPARTMENT OF WATER RESOURCES 1/29
Water Right Report : 25-14236( License/Active)
Owner Type Name Address City State Postal Code
Current Owner FALLS WATER CO INC 2180 N DEBORAH DR IDAHO FALLS ID 83401-6223
Original Owner MORNINGVIEW WATER CO INC PO BOX 598 RIGBY ID 83442
Priority Date : 7/6/2009Basis : License
Status : Active
Source Source Qualifier Tributary Tributary Qualifier
GROUND WATER
Source Township Range Section Govt. Lot QQQ QQ Q County Diversion Type
GROUND WATER 04N 39E 30 0 NW NE JEFFERSON
GROUND WATER 04N 39E 30 0 NW NE JEFFERSON
GROUND WATER 04N 39E 30 1 NW NW JEFFERSON
Beneficial Use From To Diversion Rate Volume
DOMESTIC 01/01 12/31 0.25 CFS 12.00 AFA
TOTAL 0.25 CFS 12.00 CFS
Place of Use Legal Description : DOMESTIC (JEFFERSON county)
Code Condtions
132 Domestic use is for 10 homes.
Water rights 25-14236, 25-14199, and 25-7593 shall not exceed a diversion rate of .83 cfs for in-house non consumptive domestic purposesfor 152 homes, and .46 cfs, and 92 AFA for the irrigation of 152 lots.
R05 Use of water under this right will be regulated by a watermaster with responsibility for the distribution of water among appropriators within awater district. At the time of this approval, this water right is within State Water District No. 120.
213 Upon specific notification of the Department, the right holder shall install and maintain data loggers to record water usage information at the
authorized point(s) of diversion in accordance with Department specifications.
Water Right Owners
Water Right Status
Water Source
Points Of Diversion (Location)
Water Uses
Places of Use
Printable View Paged View
Township Range Section Lot QQQ QQ Q Acres
04N 39E 30 NE NE
04N 39E 30 NW NE
04N 39E 30 NE NW
04N 39E 30 1 NW NW
Conditions
212 Prior to diversion and use of water, the right holder shall install and maintain acceptable measuring device(s) at the authorized point(s) of
diversion, in accordance with Department specifications.
070 The irrigation occurring under this domestic use shall not exceed 1/2 acre within each platted subdivision lot upon which a home has been
constructed. This right does not provide for irrigation of common areas or for irrigation of lots upon which homes have not been constructed.
071 The domestic use authorized under this right shall not exceed 13,000 gallons per day per home.
Dates
Licensed Date : 6/25/2020
Decreed Date :
Permit Proof Due Date : 11/19/2022
Permit Proof Made Date : 5/8/2020
Permit Approved Date : 1/22/2010
Permit Moratorium Expiration Date :
Enlargment Use Priority Date :
Enlargement Statute Priority Date :
Application Recevied Date: 6/1/2009
Protest Deadline Date: 7/6/2009
Other Information
State or Federal :
Water District Number : 120
Generic Max Rate Per Acre : 0
Generic Max Volume Per Acre : 0
Civil Case Number :
Decree Plantiff :
Decree Defendant :
Swan Falls Trust or Nontrust : T
Swan Falls Dismissed :
DLE Act Number :
Cary Act Number :
Mitigation Plan: False
IDAHO DEPARTMENT OF WATER RESOURCES 1/29
Appendix C:
Well Logs
Figure 4 Well #1
Figure 5 Well #2
Figure 6 Well #3
Appendix D:
Water Production Data
Figure 7 2021 Well Log
Figure 8 2022 Well Log
Figure 9 2023 Well Log