06/04/2018-CC-Agenda Packet-Work SessionSANGER
*TEXAS
AGENDA
CITY COUNCIL
WORK SESSION
MONDAY, JUNE 4, 2018
6:00 PM
502 ELM STREET
SANGER, TEXAS
1. Call Meeting to Order.
2. Presentation by Perkins Engineering Consultants, Inc. on the Updated Water and
Wastewater Capital Improvement Plan.
3. Presentation by Tatum Whitewood on a Proposed Event Pavilion Located at Porter
Sports Complex.
4. Overview of Items on Regular Agenda.
ADJOURN
I, the undersigned authority, do hereby certify that this Notice of Meeting was posted
on the bulletin board, at the City Hall of the City of Sanger, Texas, a place convenient
and readily accessible to the general public at all times, and said notice was posted on
the following date and time: M at 5 ' 00 _e.M. and
shall remain posted until meeting ig adjourned.
deriana Staton, Deputy
City of Sanger, Texas
S,4,V .
reta ry '
s •.
eXAS
This facility is wheelchair accessible and accessible parking'P-L are available. Requests for
accommodations or interpretive services must be made 48 hours prior to this meeting. Please contact the
City Secretary's office at (940) 458-7930 for further information.
BANGER
T E X A S
COUNCIL AGENDA ITEM
AGENDA TYPE ❑ Regular ❑ Special ❑ Consent Reviewed by Finance
N Workshop ❑ Executive ❑ Public Reviewed by Legal
Hearin
❑ Yes
® Not Applicable
❑ Yes
N Not Applicable
COUNCIL MEETING DATE: SUBMITTED BY:
June 4, 2018 Alina Ciocan, Director of Economic & Community
Development
City Manager Reviewed/Approval Initials Date 03- 30
ACTION REQUESTED: ❑ORDINANCE ❑ RESOLUTION ❑ APPROVAL
❑ CHANGE ORDER ❑ AGREEMENT ❑ APPROVAL OF BID ❑ AWARD OF CONTRACT
❑ CONSENSUS ❑ REAPPOINTMENTS
AGENDA CAPTION
Presentation by Perkins Engineering Consultants, Inc. on the Updated Water and Wastewater Capital
Improvement Plan.
FINANCIAL SUMMARY
NN/A ❑GRANT FUNDS ❑OPERATING EXPENSE ❑REVENUE ❑CI P ❑BUDGETED
❑NON -BUDGETED
6
FISCAL YEAR:
PRIOR
YEAR
CURRENT
YEAR
FUTURE
YEARS
TOTALS
Proposed Expenditure Amount
Encumbered Amount
BALANCE
FUND(S) TO BE USED: General ❑$ Utility ❑ $ Special ❑ $
BACKGROUND/SUMMARY OF ITEM
Last fall, the City Council approved a contract amendment with Perkins Engineering to update the Water and
Wastewater Capital Improvement Plan prepared in 2010.
STAFF OPTIONS & RECOMMENDATION
List of Supporting Documents/Exhibits Attached:
Prior Action/Review by Council, Boards, Commissions or
Other Agencies: N/A
WATER AND WASTEWATER CAPITAL
IMPROVEMENTS PLAN
City of Sanger
December 2017
Prepared by:
0 PERKINS
ENGINEERING
CONSULTANTS, INC.
TBPE Firm No. 8699
Prepared for:
SANGER
*TEXAS
12/5/17
City of Sanger
Water and Wastewater Capital Improvements Plan
Page i
Table of Contents
Tableof Contents.................................................................................................................................. i
Section
1.0 - PROJECT DETAILS AND DESCRIPTION.....................................................................
2
1.1
INTRODUCTION...................................................................................................................
2
1.2
SERVICE AREAS..................................................................................................................
2
1.3
GROWTH RATE PROJECTIONS.........................................................................................
2
1.4
TCEQ REQUIREMENTS.......................................................................................................
3
Section
2.0 - WATER SUPPLY SYSTEM.............................................................................................
4
2.1
EXISTING SUPPLY INFORMATION.....................................................................................
4
2.2
EXISTING TOTAL STORAGE INFORMATION....................................................................
5
2.3
EXISTING ELEVATED STORAGE TANK INFORMATION...................................................
7
2.4
EXISTING PUMPING INFORMATION..................................................................................
7
2.5
RECOMMENDATIONS FOR THE WATER SUPPLY IMPROVEMENTS .............................
8
2.5.1 2023 WATER SUPPLY IMPROVEMENTS..............................................................
9
2.5.2 2030 WATER SUPPLY IMPROVEMENTS..............................................................
9
2.5.3 SUMMARY................................................................................................................9
Section
3.0 - WATER DISTRIBUTION SYSTEM...............................................................................
10
3.1
EXISTING WATER DISTRIBUTION SYSTEM....................................................................
10
3.2
ANALYSIS OF EXISTING SYSTEM....................................................................................
10
3.3
PROPOSED DISTRIBUTION SYSTEM IMPROVEMENTS ANALYSIS .............................
11
3.3.1 FUTURE DEMAND ANALYSIS..............................................................
12
3.4
2023 PROPOSED DISTRIBUTION SYSTEM IMPROVEMENTS .......................................
12
3.5
2030 WATER DISTRIBUTION SYSTEM IMPROVEMENTS ..............................................
13
3.6
SUMMARY...........................................................................................................................13
Section
4.0 - SANITARY SEWER COLLECTION SYSTEM..............................................................
14
4.1
EXISTING COLLECTION SYSTEM....................................................................................
14
4.2
ANALYSIS OF EXISTING COLLECTION SYSTEM...........................................................
14
4.3
2023 COLLECTION SYSTEM IMPROVEMENTS...............................................................
15
4.4
2030 COLLECTION SYSTEM IMPROVEMENTS...............................................................
15
4.5
SUMMARY...........................................................................................................................16
Section
5.0 - IMPACT FEE ANALYSIS..............................................................................................
16
5.1
GENERAL............................................................................................................................16
5.2
ANALYSIS METHOLOGY AND SUMMARY.......................................................................
17
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 2
Section 1.0 - PROJECT DETAILS AND DESCRIPTION
1.1 INTRODUCTION
Perkins Engineering Consultants, Inc. (PECI) was retained by the City of Sanger to assist with
updating the Master Plan for the City's water and sanitary sewer systems. The scope includes
reviewing the water and wastewater system improvements from 2010 to present, preparing
new water and wastewater system maps for the existing systems and proposed
improvements, developing a recommended impact fee structure for City consideration, and
modeling and performing a hydraulic analysis of the existing water system. PECI will assess
major elements within the water distribution system to establish compliance with TCEQ
minimum standards. This report will discuss the existing systems and minimum required
capacity, recommended improvements, and cost estimates for the improvements. PECI
utilized information for this report from the following sources: 1) the "Technical
Memorandum for Water Supply Improvements for the City of Sanger, October 2014"
prepared for the City of Sanger by LNV Engineers; 2) the "Water and Wastewater Master Plan,
August 2010" prepared for the City of Sanger by KSA Engineers; 3) Texas Water Development
Board (TWDB); 4) City -provided well, pump, tank, customer/user, population and growth
data; and, 5) Texas Commission on Environmental Quality (TCEQ).
1.2 SERVICE AREAS
The City of Sanger provides water distribution and sanitary sewer collection services to
approximately 2,830 connections which represents approximately 7,800 residents and
numerous commercial, industrial, and institutional customers within the Sanger city limits.
There are approximately 62.3 miles of potable water piping and approximately 35.4 miles of
sewer collection piping in the system. The existing water distribution system is shown in
Exhibit 01 and the existing sewer collection system is shown in Exhibit 04. Each system is
described in the following sections.
1.3 GROWTH RATE PROJECTIONS
The growth rates used in the "Water and Wastewater Master Plan, August 2010" prepared
for the City of Sanger by KSA Engineers was estimated using the North Central Texas Council
of Governments (NCTCOG) 2009 population estimate for the City of Sanger, which at the time
estimated 6,950 persons, with a growth rate of 3.73%. In the "Technical Memorandum for
Water Supply Improvements for the City of Sanger, October 2014" prepared for the City of
Sanger by LNV Engineers, a growth rate of 5% was obtained from the growth experienced by
the City over a five (5) year period. For the purposes of this report, a growth rate of 4% will be
used. The 4% growth rate was obtained from calculating the average growth experienced by
the City from 2011 to 2016, and comparing that growth rate to that projected in the NCTCOG
population estimate for the City of Sanger. The projected number of future connections are
summarized in Table No. 1— Projected Residential and Total Connections. The additional
demands were added in areas where population growth is expected to occur, or in areas
where the City anticipates an extension of services.
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 3
Table No. 1 - Projected Residential and Total Connections
Growth Rate * = 4% annual rate
Ratio of Population to Residential Connections = 2.76
Year
Projected
Population
Projected
Residential
Connections
New
Residential
Connections
per Period
New Non -
Residential
Connections
per Period
Projected
Total
Connections
2017
7,800
2,826
82
4
2,830
2018
8,112
2,939
113
4
2,943
2019
8,436
3,057
118
4
31061
2020
8,774
3,179
122
4
31183
2021
9,125
3,306
127
5
3,311
2022
9,490
3,438
132
5
3,443
2023
9,869
3,576
138
5
31581
2024
10,264
3,719
143
5
3,724
2025
10,675
3,868
149
5
3,873
2026
11,102
4,022
155
6
4,028
2027
11,546
4,183
161
6
4,189
2028
12,008
4,351
167
6
41357
2029
12,488
4,525
174
6
4,531
2030
12,988
4,706
181
7
4,712
1.4 TCEQ REQUIREMENTS
Under the current Texas Commission on Environmental Quality (TCEQ) regulations (amended
December 10, 2009) under Chapter 30 of the Texas Administrative Code (TAC) section
290.45.D., a system with more than 250 connections must meet the following requirements:
• The water supply capacity shall have a total capacity of 0.6 gallons per minute (GPM)
per connection
A total storage capacity of 200 gallons per connection
Two or more pumps that have a total capacity of 2.0 gallons per minute (GPM) per
connection or that have a total capacity of at least 1,000 gallons per minute (GPM)
and the ability to meet peak hourly demands with the largest pump out of service,
whichever is less, at each pump station or pressure plane. For systems which provide
an elevated storage capacity of 200 gallons per connection, two service pumps with a
minimum combined capacity of 0.6 gallons per minute (GPM) per connection, with
the largest pump out of service, are required at each pump station or pressure plane.
If only wells and elevated storage are provided, service pumps are not required;
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 4
• An elevated storage capacity of 100 gallons per connection or a pressure tank capacity
of 20 gallons per connection. If pressure tanks are used, a maximum capacity of
30,000 gallons is sufficient for up to 2,500 connections. An elevated storage capacity
of 100 gallons per connection is required for systems with more than 2,500
connections.
• Emergency power is requiredfor systems that do not provide100 gallons of elevated
storage per connection or an emergency interconnection with another public water
system that has emergency powerand is able to supply at least 0.35 gallons per minute
(GPM) for each connection in the combined system.
• An operating pressure of 35 psi must be maintainedfor each connection inthe
system undera peak demand condition of 1.5gallons per minute (GPM) per
connection.
• A minimum operating pressure of 20 psi is required during fire flow conditions.
Section 2.0 - WATER SUPPLY SYSTEM
2.1 EXISTING SUPPLY INFORMATION
The City's water service area is located within the city limits and includes the Wal-Mart
Distribution Center and several subdivisions, with the Wal-Mart distribution Center being the
largest single consumer of potable water with a consumption rate of approximately 100,000
gallons per day (GDP). The City currently owns and operates seven (7) deep water wells
drawing from the Antlers formation (within the Trinity Aquifer), and has an interconnection
with the Upper Trinity Regional Water District (UTRWD). The Upper Trinity Regional Water
District (UTRWD) interconnection supplies 350 gallons per minute (GPM). The City's contract
with UTRWD provides the City with up to 0.5 million gallons per day (MGD). Well No. 8 and
Well No. 9 are the newest additions to the City's supply, each with a capacity of 725 gallons
per minute (GPM), increasing the 2014 well capacity from 1,520 gallons per minute to 2,970
gallons per minute. Table No. 2 — Supply Capacity shows the production of each well and the
total rated water supply capacity of 2,970 gallons per minute (GPM) which includes the supply
connection to Upper Texoma Regional Water District (UTRWD). The total actual well capacity
of the supply system is 2,620 gallons per minute (GPM), which does not include the UTRWD
interconnect.
Per TCEQ, a minimum of 0.6 gallons per minute (GPM) of water supply per connection is
required. The City has reported that it currently has 2,830 connections, equating to
approximately 1,698 gallons per minute (GPM) of minimum required capacity. This value is
significantly less than the current available supply of 2,970 gallons per minute (GPM), hence,
the City is meeting TCEQ minimum requirements for water supply to its customers.
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 5
Table No. 2 - Supply Capacity
ITEM
UNITS
CAPACITY
Well No. 2
GPM
80
Well No. 3
GPM
0
Well No. 5
GPM
250
Well No. 6
GPM
265
Well No. 7
GPM
575
Well No. 8
GPM
725
Well No. 9
GPM
725
UTRWD interconnect
GPM
350
Total Well Capacity
GPM
2,970
Table No. 3 - Minimum Total Supply Capacities shows the minimum water supply
requirements (per TCEQ) if the City continues to grow at a rate of 4% per year. This 4%
growth rate is based on NCTCOG growth estimates for the City of Sanger and actual growth
experienced by the City from 2011 to 2016, as previously shown in Table 1. The City's actual
water supply capacity is expected to be sufficient through the year 2030.
Table No. 3 - Minimum Total Supply Capacities
Connections*
Year
TCEQ Required
Supply (gp►n)
Existing Supply
(gp►r)
Supply Surplus
(gpm)
2,830
2017
1,698
2,970
1,272
2,943
2018
1,766
2,970
1,204
3,061
2019
1,837
2,970
1,133
3,183
2020
1,910
2,970
1,060
3,311
2021
1,986
2,970
984
3,443
2022
2,066
2,970
904
3,581
2023
2,149
2,970
821
3,724
2024
2,234
2,970
736
3,873
2025
2,324
2,970
646
4,028
2026
2,417
2,970
553
4,189
2027
2,513
2,970
457
4,357
2028
2,614
2,970
356
4,531
2029
2,719
2,970
251
4,712
2030
2,827
2,970
143
2.2 EXISTING TOTAL STORAGE INFORMATION
The City currently has five (5) ground storage tanks totaling 1.2 million gallons and three (3)
elevated tanks totaling 1.2 million gallons. Table No. 4-Total Storage Capacity shows the
combined total storage capacity to be 2.4 million gallons.
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 6
Table No. 4-Total Storage Capacity
ITEM
UNITS
CURRENT CAPACITY
Ground Storage Utility Rd
gal
100,000
Ground Storage Yard No. 1
gal
100,000
Ground Storage Yard No. 2
gal
200,000
Ground Storage Aker St.
gal
300,000
Ground Storage Cowling Rd.
gal
500,000
Total Ground Storage Capacity
gal
1,200,000
Elevated Storage Walmart
gal
500,000
Elevated Storage McReynolds Rd.
gal
200,000
Elevated Tank Acker St.
gal
500,000
Total Elevated Storage Capacity
gal
1,200,000
Total Storage Capacity
gal
2,400,000
Table No. 5 - Minimum Total Storage Capacity shows the storage deficit, if any, over time as
the City grows at a 4% annual growth rate assuming 200 gallons per connection.
Table
No. 5 - Minimum Total Storage Capacity
Connections
Year
TCEQ Required
Storage (gal)
Storage Available
(gal)
Storage Surplus
(gal)
2,830
2017
566,000
2,400,000
1,834,000
2,943
2018
588,640
2,400,000
1,811,360
3,061
2019
612,186
2,400,000
1,787,814
3,183
2020
636,673
2,400,000
1,763,327
3,311
2021
662,140
2,400,000
1,737,860
3,443
2022
688,626
2,400,000
1,711,374
3,581
2023
716,171
2,400,000
1,683,829
3,724
2024
744,817
2,400,000
1,655,183
3,873
2025
774,610
2,400,000
1,625,390
4,028
2026
805,594
2,400,000
1,594,406
4,189
2027
837,818
2,400,000
1,562,182
4,357
2028
871,331
2,400,000
1,528,669
4,531
2029
906,184
2,400,000
1,493,816
4,712
2030
942,432
2,400,000
1,457,568
Through the year 2030, the City has sufficient storage capacity and can meet TCEQ regulations
on minimum required storage capacity.
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 7
2.3 EXISTING ELEVATED STORAGE TANK INFORMATION
As shown in Table No. 4, the City has 1.2 million gallons of elevated storage, serving
approximately 2,830 connections. Table No. 6 - Minimum Elevated Storage Capacity shows
when the City can expect to fall below the minimum requirement of 200 gallons per
connection as growth occurs at the estimated 4% growth rate. It is not expected that the City
will reach this point by the year 2030. However, as the City approaches this point, planning for
additional storage and/or high service pumping may be required to continue meeting the
requirements set forth by the TCEQ.
Table No.
6 - Minimum Elevated Storage Capacity
Connections*
Year
TCEQ Required
Storage (gal) **
Storage Available
(gal)
Storage
Surplus(gal)
2,830
2017
566,000
1,200,000
634,000
2,943
2018
588,640
1,200,000
611,360
3,061
2019
612,186
1,200,000
587,814
3,183
2020
636,673
1,200,000
563,327
3,311
2021
662,140
1,200,000
537,860
3,443
2022
688,626
1,200,000
511,374
3,581
2023
716,171
1,200,000
483,829
3,724
2024
744,817
1,200,000
455,183
3,873
2025
774,610
1,200,000
425,390
4,028
2026
805,594
1,200,000
394,406
4,189
2027
837,818
1,200,000
362,182
4,357
2028
871,331
1,200,000
328,669
4,531
2029
906,184
1,200,000
293,816
4,712
2030
942,432
1,200,000
257,568
* 4% growth rate
** 200 gallons per connection of storage
2.4 EXISTING PUMPING INFORMATION
The City currently has five (5) ground storage tanks totaling 1.2 million gallons and three (3)
elevated tanks totaling 1.2 million gallons. Water is pumped into the distribution system via
booster pumps at the various ground storage tank locations shown in Exhibit 01. The City's
elevated storage tanks have three (3) distinct overflow elevations that produce three different
pressure planes within the system when each tank is filled to overflow. As discussed in the
2014 Technical Memorandum, the City currently manages at "tank full" levels in order to keep
the lower elevation tanks from overflowing. The "control tank" for the system is the Acker
Street Tank. The City's well pumps come on automatically via SCADA when the ground storage
tanks fall to the lower set point programmed for each location. The well pumps shut off when
the ground storage tank reaches the upper set point programmed in SCADA. When the
elevated storage tanks fall to their lower set point, the booster pumps are programmed to
come on and pump water out of the ground storage tank to fill the elevated storage tank to
the upper set point, at which time the booster pumps shut off. If water demand is great
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 8
enough this can all be happening simultaneously. Elevated storage tanks are filled by the
booster pumps and then lower storage tanks via gravity. The total pumping capacity of the
City's system is 2,500 gallons per minute (GPM). Table No. 7 - Pump Capacity shows the
maximum connections that can be served by the high service pumping capacity at both 0.6 and
2.0 gallons per minute (GPM) per connection.
Table No. 7 - Pump Capacity
ITEM
UNITS
CAPACITY
CONNECTIONS
(0.6 GPM)
CONNECTIONS
(2.0 GPM)
HSP (2) Cowling Rd.
GPM
700
1,167
350
HSP (1) Yard
GPM
300
500
150
HSP (2) Acker St.
GPM
600
1,000
300
HSP (3) Utility Rd
GPM
900
1,500
450
Total HSP Capacity
GPM
2,500
4,167
1250
Table No. 8 - Minimum Pumping Capacity shows when the City can expect to fall below the
minimum requirement of 0.6 gallons per minute (GPM) per connection as growth occurs at the
estimated 4% growth rate. It is shown that the pumping capacity is adequate until the year
2027, in which planning for additional high service pumping and/or storage will be required to
meet TCEQ minimum requirements.
Table
No. 8 - Minimum Pumping Capacity
Connections*
Year
TCEQ Required
Pumping (gpm **
Pumping Available
(gpm)
Pumping Surplus
(gpm)
2,830
2017
1,698
2,500
802
2,943
2018
1,766
2,500
734
3,061
2019
1,837
2,500
663
3,183
2020
1,910
2,500
590
3,311
2021
1,986
2,500
514
3,443
2022
2,066
2,500
434
3,581
2023
2,149
2,500
351
3,724
2024
2,234
2,500
266
3,873
2025
2,324
2,500
176
4,028
2026
2,417
2,500
83
4,189
2027
2,513
2,500
(13)
4,357
2028
2,614
2,500
(114)
4,531
2029
2,719
2,500
(219)
4,712
2030
2,827
2,500
(327)
* 4% growth rate
** 0.6 gallons per minute per connection
2.5 RECOMMENDATIONS FOR THE WATER SUPPLY IMPROVEMENTS
Based on the 4% growth rate and the current water supply produced by the City, additional
water supply sources are not needed immediately. The City's water supply capacity is
projected to become deficient in the years following 2027, based on the 4% growth rate and
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 9
anticipated increase in connections. The high service pumping capacity is also expected to
become deficient before the year 2030, as shown in Table No. 8. It should be noted that the
existing high service pump capacity at the Yard Pump Station does not meet minimum TCEQ
requirements and needs to be improved as soon as funds are available. The required pumping
capacity was determined by TCEQ regulations, and will require planning for either additional
high service pumping and/or storage capacity by the year 2027. Recommendations and
estimates for the water supply improvements are discussed in the following subsections, and
the water distribution system improvements are discussed in Section 3.0 of this report.
2.5.1 2023 WATER SUPPLY IMPROVEMENTS
The 2023 recommended improvements include those previously recommended in the 2010
Master Plan that have not already been implemented. Exhibit 02 shows the 2023 water system
improvements for both supply and distribution. The proposed water supply improvements for
2023 are as follows:
Upgrade the high -service pumping capacity at the Cowling Road Plant from 700 GPM
to 1,000 GPM.
Replace the single 300 GPM high -service pump at the Yard Plant with two 600 GPM
high -service pumps. Alternatively, the City may add two (2) 700 GPM high service
pumps, and eliminate the need of increasing the Cowling Road Plant to 1,000 GPM.
Re-evaluate population data and historic meter use data for planning purposes
2.5.2 2030 WATER SUPPLY IMPROVEMENTS
The 2030 recommended water supply improvements are shown on Exhibit 03. These
improvements are as follows:
• Construct new well, ground storage tank, and a booster station facility east of town at
the junction of FM 455 and Union Hill Road. If well supply is not available or not
granted through the Groundwater District, the additional supply may be obtained
through the UTRWD.
2.5.3 SUMMARY
As previously mentioned, additional water supply sources are not needed immediately based
on a 4% growth rate. However, the 20230 improvements do recommend an additional well
supply, or increase in the purchased water supply, in the event that one of the existing wells
needs to be taken offline or fails. Additionally, the Yard Pump Station does not meet TCEQ
minimum standard, and by 2027 the City's pump capacity becomes deficient. The addition of
two (2) 600 gallon per minute (GPM) high service pumps will allow sufficient pumping and
meet TCEQ minimum standards. As an alternative option, the City may add two (2) 700 GPM
high service pumps, and eliminate the need of increasing the Cowling Road Plant to 1,000
GPM.
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 10
Section 3.0 - WATER DISTRIBUTION SYSTEM
3.1 EXISTING WATER DISTRIBUTION SYSTEM
The City of Sanger provides water service to its 2,830 (+/-) via 62.3 miles of distribution piping
consisting of approximately .23 miles of 20", 1.4 miles of 16", 8.5 miles of 12", 20.3 miles of
8", 15.6 miles of 6", 0.76 miles of 4" and 15.6 miles of 2". The existing water distribution
system is shown in Exhibit 01.
3.2 ANALYSIS OF EXISTING SYSTEM
As previously stated, the City's service area is located within the City limits, and includes the
Wal-Mart Distribution Center and several subdivisions. However, there are areas within the
City limits that do not currently have service from the City of Sanger. These areas have been
historically served by Bolivar Water Supply. The area with limited distribution lines north of
Belz Road, along 1-35, is shown in Figure 1. As mentioned these areas, west of 1-35 and north
of Lois Road, are serviced by Bolivar Water Supply due to these limitations. The system is also
currently unable to serve the populations shown in Figure 2, that are east of Marion Road and
north of FM455/West Chapman Road or those east of Lake Ridge Estates. Existing populations
shown in Figure 3, west of Metz and north of Belz Road, also do not have distribution lines
providing service. As the City continues to grow and develop these areas, distribution lines
are needed to serve both present and future populations within the City limits.
Figure 1— Mobile Home Park not serviced Figure 2 — Area east of Marion and east of Lake Ridge
by distribution lines Estates not serviced by distribution lines
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 11
Figure 3 — Area west of Metz and North of Belz Road
not serviced by distribution lines
The City of Sanger's water distribution system is currently in compliance with the TCEQ
regulations for supply and capacity with the current number of connections being served. As
the City's population grows, upgrades to pipe lines will be needed to handle higher flow
demands due to population increases. The areas mentioned with limited or no distribution
lines, are the areas in which population growth is expected to occur within the city limits. The
only deficiencies found with the current distribution system is the inability to handle fire flow
demands in certain areas.
3.3 PROPOSED DISTRIBUTION SYSTEM IMPROVEMENTS ANALYSIS
An evaluation of the City of Sanger's existing distribution system's aptitude to meet estimated
future demand was performed using PIPE-FLO®, a fluid flow analysis and design modeling
software tool. PIPE-FLO® uses nodes and pipes drawn using the existing utility maps to define
the water system. Information for the model was developed in conjunction with the
estimated future growth and the increased number of connections provided by the City. Pipes
were assigned designed characteristics which consider type and estimated overall condition,
as described by City staff. Once the model of the existing system was completed, PECI looked
at any inadequate areas of flow as well as future areas of expansion to determine the projects
listed in this report. The computerized PIPE-FLO° model calculates friction losses and
pressures throughout the distribution system from the input of pipe sizes, pipe materials,
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 12
pipe roughness, ground elevations, demands and pump stations operating pressures. The fire
flow analysis was conducted by increasing demands to 1,000 (GPM), progressively,
throughout the distribution system while monitoring each node. If the pressure drops below
20 psi, or the node is incapable of delivering 1,000 (GPM) of flow in addition to the existing
demand, the node fails. The primary cause for deficiencies, demonstrated by node failure, is
undersized pipes in the distribution system. The proposed improvements in 2023 and 2030
effectively address the areas in which fire flow deficiencies were found.
3.3.1 FUTURE DEMAND ANALYSIS
The City of Sanger, as previously stated, is currently in compliance with the TCEQ regulations
on supply and capacity for their current number of connections being served. Once the City
begins adding additional distribution lines, to serve the existing populations not currently
served and future populations due to development, installation of new lines and upgrades to
existing lines are needed to ensure that older, existing pipes do not hinder the system's ability
to handle higher demands during fire flow. The proposed distribution system improvements
are discussed in Sections 3.4 and 3.5 of this report.
3.4 2023 PROPOSED DISTRIBUTION SYSTEM IMPROVEMENTS
The PIPE-FLO® model was used, in addition to direct feedback from the City's staff on areas
that have insufficient sizing and/or maintenance issues that occur regularly, to determine the
distribution improvements needed by 2023 associated with expanding the City's water
distribution system to cover areas of anticipated growth and address fire flow deficiencies.
The improvements for 2023 are as follows, with higher priority items listed first:
• FM455 expansion, all utilities adjacent shall be relocated
• 8" line along Plum St between 10th and 2"1 street (High priority with
planned widening of FM455)
• 8" line along Railroad Ave (From Willow St South to existing 6")
• 12" line along Willow St (From Railroad Ave to Well #6.)
• 6" line along S. Jones St (From Willow St, south)
• 6" line along Simms St (From Willow St, south)
• 6" line along Jennifer (end of existing line to Belz)
• 12" line along 1-35 East Service Road (Utility to Lois)
• 8" line along Belz to Metz then South along Metz to Chapman
• 8" line along Huling (RR to Marion)
• 12" line along Marion (connects to Huling line and creates service loop)
• 12" line along McReynolds (Lake Ridge to Union Hill area)
• 12" line along FM 455 (Marion to Union Hill)
• 8" line along future Union Hill (FM 455 to McReynolds)
• Upgrade Yard Plant (increase pumping capacity to 1200 GPM with the
addition of two (2) 600 GPM pumps)
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 13
Increasing the pumping capacity at the Cowling Road and Yard Plants will facilitate increasing
the water supply from UTRWD and provide adequate pumping capacity at the plants. The
proposed improvements are outlined in Exhibit 07 — Preliminary Opinion of Probable
Construction Cost and shown in Exhibit 02 — 2023 Water Distribution System Improvements
Map.
3.5 2030 WATER DISTRIBUTION SYSTEM IMPROVEMENTS
The PIPE-FLO® model was used to determine the distribution improvements needed by 2030
associated with expanding the City's water distribution system to cover areas of anticipated
growth. The 2030 improvements for expansion are as follows:
• 12" line along FM455 (East of Union Hill)
• 12" along 1-35 West Service Rd (North from 1-35 crossing to View)
• 12" line along McReynolds (East of future Union Hill Road)
• 12" line along FM 2164 (finish loop)
• 8" line along Union Hill (North of FM 455 and along Lake)
• 12" line along FM 1190
• 12" line along Lois (RR to Marion)
• 12" line along Marion (Lois to Huling)
• 12" line along 1-35 East Service Rd. (View to Chisum)
• 8" line along Chisum (1-35 East Service Rd to RR)
• 8" line along RR (Walmart to Chisum)
• 8" line along View to Metz, South on Metz to Belz
• Additional water well for industrial use on Lois, west of 1-35
• Supply Facility at McReynolds and Union Hill (well, tank, pumps)
The supply facility at McReynolds and Union will allow for an additional groundwater well to
increase water supply. This option is recommended in the event that the City continues to
grow to the east faster than the rate shown in this study. The proposed improvements are
outlined in Exhibit 07 — Preliminary Opinion of Probable Construction Cost and shown in
Exhibit 03 — 2030 Water Distribution System Improvements Map.
3.6 SUMMARY
Projected population growth based on NCTCOG and connection estimates show that the City
of Sanger will need additional distribution lines to serve its growing populations. Upgrading of
smaller diameter pipes is essential for handling higher flows during fire flow, and in some
cases, is needed for day-to-day flow demands. The proposed improvements from 2023 to
2030 focus on serving the growing population and addressing piping deficiencies at higher
flow demands.
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 14
Section 4.0 - SANITARY SEWER COLLECTION SYSTEM
4.1 EXISTING COLLECTION SYSTEM
The City of Sanger currently provides sanitary sewer services to most of the customer base
within the Sanger city limits. Previous City collection system maps and newly installed
collection system addition maps were used to measure the 40.2 miles of collection system
piping consisting of approximately 15.8 miles of 6", 14.6 miles of 8", 1.6 miles of 10", 0.95
miles of 12", 2.3 miles of 15", 1.3 miles of 18", 2.1 miles of 21", and 0.4 miles of 27", 0.3 miles
of 4" force main, 0.54 miles of 6" force main, and 0.43 miles of 8" force main. The existing
collection system is shown in Exhibit 04 and the facilities are outlined below:
The City currently has six (6) lift stations of varying sizes and capacities using submersible
pumps. When the last Water and Wastewater Master Plan was updated in 2010, the City had
a modified manhole acting as a "temporary lift station" behind Miguelitos, located at 1412 N.
Stemmons Street. A new 21" sewer line is currently being installed in this location, and the
modified manhole will be removed. According to City staff, all lift stations are in good
condition, except for the South Bottom Lift Station, also referred to as the Cowling Lower Lift
Station. The Cowling Lower Lift Station is already scheduled to be relocated and redesigned.
The City currently owns and operates its own wastewater treatment plant (WWTP) which
consists of four (4) packaged treatment plants that are operated in parallel, an equalization
basin, headworks with step -screen, four (4) sludge drying beds and a water reclamation pond.
The WWTP is currently under construction to upgrade and expand its capabilities. These
improvements will change the permitted capacity from 0.98 million gallons per day (MGD) to
1.6 million gallons per day (MGD). The location of the WWTP and the lift stations are shown in
Exhibit 04.
4.2 ANALYSIS OF EXISTING COLLECTION SYSTEM
Design requirements of a gravity wastewater collection system from the current Texas
Commission on Environmental Quality (TCEQ) regulations under Chapter 30 of the Texas
Administrative Code (TAC) 217 was referred to in order to evaluate the existing sanitary sewer
collection system. The regulations state the following:
An owner must design a wastewater collection system to handle the transport of
the peak dry weather flow from the service area, plus infiltration and inflow.
The flow calculations must include the details of the average dry weather flow, the
dry weather flow peaking hour, and the infiltration and inflow.
Improvements needed for the collection system were based on staff comments and feedback.
Much of this feedback concerned sewer lines that are insufficiently sized for the amount of
growth the City has experienced over the past five years. Additional improvements are
needed for line segments that are experiencing excessive maintenance issues. It should be
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 15
noted that no hydraulic analysis was performed on the existing and proposed collection
system.
4.3 2023 COLLECTION SYSTEM IMPROVEMENTS
The 2023 improvements involve expanding the City's service area. Currently the Cowling
Lower Lift Station is being taken out of service and the influent to the abandoned lift station
will be directed to a new 21" gravity line to proposed lift station and then to the existing
WWTP via a 15" force main. The proposed 2023 improvements are as follows:
• 6" line along Plum St.
• 8" line along Plum St.
• 6" line on Bolivar from service road to 5t" St.
• 6" line in alley just south of Bolivar from 5th to 2nd St.
• 8" line from Railroad Ave to Jones, south of E Willow St.
• 27" line (to replace 15" trunk line North of McReynolds)
• 8" line North of Chapman to Belz
• 15" line along creek (Lake Ridge LS to FM 455)
• Proposed lift station off Marion Street with 1000 gpm pumping capacity
• 15" line from FM 455 to proposed lift station off Marion Street.
• New McReynolds Lift Station with 2000 gallons per minute (GPM) pumping capacity
(upgradeable)
• 21" line (North of McReynolds from proposed McReynolds Lift Station)
• 10" force main along McReynolds to Lake Ridge
• Railroad and Rector Lift Station with 1000 gallons per minute (GPM) pumping
capacity
• 15" force main from proposed Railroad and Rector Lift Station to existing WWTP
• 21" line from N. Lois to View Rd.
• 12" line along FM 455 from Railroad to Acker St.
• 15" gravity line from existing 18" at abandon Cowling Rd. Lift Station to proposed lift
station on Railroad at Rector
• 15" gravity line from existing WWTP to the new discharge site
The 27" line that replaces the 15" trunk line north of McReynolds is necessary to
accommodate future residential and commercial growth in the northern part of the City.
The proposed improvements are outlined in Exhibit 07 — Preliminary Opinion of Probable
Construction Cost and shown in Exhibit 05 — 2023 Collection System Improvements Map.
4.4 2030 COLLECTION SYSTEM IMPROVEMENTS
The 2030 improvements extend the City's sewer services out to the full extent of the City's
limits. The 2030 improvements are as follows:
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 16
• 15" gravity line (extend service on West Side of 1-35)
• 18" gravity line from removed Duck Creek LS to existing 18" gravity line that crosses
1-35
• 12" gravity line from 21" sewer off 1-35 and Lois, to west city limits to serve North
Chisum area
• Upgrade 2023 proposed McReynolds Lift Station from 2000 gpm to 3000 gpm.
• 15" gravity line to extend service further into Union Hill towards FM 455
• 21" force main from proposed lift station to existing WWTP
• 36" gravity line from existing WWTP to the new discharge site
• 21" gravity line from Lake Ridge Lift Station to existing WWTP
• Lift station to serve North Chisum area with 1000 gpm pumping capacity
• 6" force main between lift stations in Chisum area, not shown on map
The proposed improvements would reduce O&M costs with the removal of the Duck Creek
Lift Station from service. In place of the Duck Creek Lift Station, the 8" line running along
Keaton would connect to the proposed 18" gravity line that crosses 1-35. Additionally, in place
of the Lake Ridge Lift Station, the 21" line will be used to convey wastewater to the existing
WWTP. The proposed improvements are outlined in Exhibit 07 — Preliminary Opinion of
Probable Construction Cost and shown in Exhibit 06 — 2030 Collection System Improvements
Map.
4.5 SUMMARY
The proposed collection system improvements include planned connections to a future
Regional WWTP, removing or upgrading lift stations, collection system capacity
improvements, repairs/replacement of failing lines and extending sewer services to areas of
proposed development. The improvements currently underway, as part of the previous
Capital Improvements Plan for the year 2020, include the removal of the Cowling Lift Station
and the removal of the lift station behind Miguelitos. Proposed major improvements for the
years 2023 through 2030 include removal of the Duck Creek Lift Station, the Lake Ridge Lift
Station, and the installation of the lift stations off Marion Road and in the North Chisum area.
The collection system will later be expanded to provide services to the large undeveloped
areas to the north and east of the City.
Section 5.0 - IMPACT FEE ANALYSIS
5.1 GENERAL
The impact fee analysis was conducted using the NCTCOG population estimates and growth
rate, as well as the future land use information provided by the City. Chapter 395 of the Local
Government Code was referred to for guidelines on financing capital improvements that are
required to support new development in municipalities, counties and other local
governments. The Local Government Code allows the maximum impact fee to be charged if
revenues from future ad valorem taxes and water and sewer bills are included as credit in the
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 17
analysis. When future revenues are not accounted for during impact fee analysis, the
maximum impact fee can be assessed as 50% of the calculated maximum fee. For the purpose
of this report, future revenues and ad valorem taxes are not accounted for and the impact fee
is assessed as 50% of the calculated maximum fee as shown in Section 5.2. The following
items were accounted for in the impact fee calculation:
• Estimated cost of water supply improvements
• Estimated cost of water system improvements
• Estimated cost of collection system improvements
• NCTCOG population projections
5.2 ANALYSIS METHOLOGY AND SUMMARY
The total cost of each improvement required to provide the needed water and sewer services
to the extents of the City's future development and to address deficiencies within the water
and sewer systems were estimated in Exhibit 07 — Preliminary Opinion of Probable
Construction Cost. The estimated cost for 2023 and 2030 water system improvements are
approximately $13,158,400 and $16,689,600, respectively. The estimated cost for 2023 and
2030 sanitary sewer improvements are approximately $18,737,600 and $12,801,600,
respectively. The total sum of $61,387,200 for both the water and sanitary sewer
improvements through the year 2030 were then divided by the total number of projected
connects, in order to get the impact fee on a per connection cost for all improvements
through the year 2030.
Combined Impact Fee =
Total Cost of Water Improvements + Total Cost of Sewer Improvements
Total Number of Projected Connections
Combined Impact Fee =
$13,158,400 + $16,689,600 + $18,737,600 + $12,801,600
2,830 = $21,692
Maximum Combined Impact Fee = 0.50(Impact Fee)
Maximum Combined Impact Fee = 0.50($21,692) _ $10,846 per connection
Distribution Impact Fee =
Total Cost of Water Improvements
Total Number of Projected Connections
$13,158,400 + $16,689,600
2,830
_ $10,547
City of Sanger
Water and Wastewater Capital Improvements Plan
Page 18
Maximum Distribution Impact Fee = 0.50($10,547) _ $5,273 per connection
Sewer Impact Fee =
Total Cost of Sewer Improvements _ $18,737,600 + $12,801,600
Total Number of Projected Connections 2,830 = $11,145
Maximum Sewer Impact Fee = 0.50($11,145) _ $5,572 per connection
The calculated initial combined impact fee is approximately $21,692 per connection and 50%
of this fee is approximately $10,846 per connection, which is the final maximum fee for both
water distribution and sewer improvements in accordance with Chapter 395 of the Local
Government Code. A summary of the overall costs and a breakdown of line item costs can be
found in Exhibit 07 — Preliminary Opinion of Probable Construction Cost.
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EXHIBIT 07
CITY OF SANGER
CAPITAL IMPROVEMENTS MASTER PLAN
OPINION OF PROBABLE CONSTRUCTION COST
2023 WATER SYSTEM IMPROVEMENTS
DESCRIPTION
COST
2023 WATER SYSTEM IMPROVEMENTS
Subtotal
$8,224,000
Mobilization
$411,200
Contractor OH&P
$1,233,600
Engineering
$1,233,600
Contingency
$2,056,000
Grand Total
$13,158,400
2030 WATER SYSTEM IMPROVEMENTS
DESCRIPTION
COST
2030 WATER SYSTEM IMPROVEMENTS
Subtotal
$10,431,000
Mobilization
$521,550
Contractor OH&P
$1,564,650
Engineering
$1,564,650
Contingency
$2,607,750
Grand Total
$16,689,600
2023 SANITARY SEWER IMPROVEMEMNTS
DESCRIPTION
COST
2023 SANITARY SEWER SYSTEM IMPROVEMENTS
Subtotal
$11,711,000
Mobilization
$585,550
Contractor OH&P
$1,756,650
Engineering
$1,756,650
Contingency
$2,927,750
Grand Total
$18,737,600
Perkins Engineering Consultants, Inc.
TBPE Firm No. 8699
Page 1 of 2 5/31/2018
0 PERKINS
ENGINEERING
CONSULTANTS,INC.
CITY OF SANGER
CAPITAL IMPROVEMENTS MASTER PLAN
OPINION OF PROBABLE CONSTRUCTION COST
2023 WATER SYSTEM IMPROVEMENTS
DESCRIPTION COST
2030 SANITARY SEWER IMPROVEMENTS
DESCRIPTION COST
2030 SANITARY SEWER SYSTEM IMPROVEMENTS
Subtotal
$8,001,000
Mobilization
$400,050
Contractor OH&P
$1,200,150
Engineering
$1,200,150
Contingency
$2,000,250
Grand Total
$12,801,600
COMBINED WATER AND SANITARY IMPROVEMENTS
DESCRIPTION
COST
2023 WATER SYSTEM IMPROVEMENTS
$13,158,400
2030 WATER SYSTEM IMPROVEMENTS
$16,689,600
2023 SANITARY SEWER SYSTEM IMPROVEMENTS
$18,737,600
2030 SANITARY SEWER SYSTEM IMPROVEMENTS
$12,801,600
Grand Total of ALL Improvements
$61,387,200
Impact fee =
$21,691.59
50% =
$10,846
Perkins Engineering Consultants, Inc.
TBPE Firm No. 8699
Page 2 of 2 5/31/2018
BANGER
*TEXAS
COUNCIL AGENDA ITEM
AGENDA TYPE ❑ Regular ❑ Special ❑ Consent Reviewed by Finance
❑ Yes
® Not Applicable
® Workshop ❑ Executive ❑ Public Hearing Reviewed by Legal
❑ Yes
® Not Applicable
Council Meeting Date: June 4, 2018 Submitted By: Jim Berman,
Director Parks and Recreation
City Manager Reviewed/Approval Initials -L Date OJ 3 0
ACTION REQUESTED: ❑ORDINANCE ❑ RESOLUTION ❑ APPROVAL
❑ CHANGE ORDER ❑ AGREEMENT ❑ APPROVAL OF BID ❑ AWARD OF CONTRACT
❑ CONSENSUS ❑ REAPPOINTMENTS
AGENDA CAPTION
Presentation by Tatum Whitewood for a proposed events pavilion located at John Porter Sports
Complex.
FINANCIAL SUMMARY
❑N/A ❑GRANT FUNDS []OPERATING EXPENSE ❑REVENUE ❑CI P ❑BUDGETED ❑NON -BUDGETED
FISCAL YEAR:
PRIOR
YEAR
CURRENT
YEAR
FUTURE
YEARS
TOTALS
Proposed Ex enditure Amount
Encumbered Amount
BALANCE
FUND(S) TO BE USED: General ❑$ Utility
❑ $ Special ❑ $
BACKGROUND/SUMMARY OF ITEM
Tatum Whitewood is a Ford Scholar recipient that is interested in completing a community service
project. She presented her project to the Sanger Texas Development Corporation on February 27, 2017
and received their support for the project. She is spearheading this events pavilion project for John
Porter Sports Complex.
STAFF OPTIONS & RECOMMENDATION
List of Supporting Documents/Exhibits Attached:
Prior Action/Review by Council, Boards, Commissions or Other
Power Point Presentation
Agencies:
Rendering of the project
Site Plan for the project
Sanger Texas Development Corporation approved project
April 17, 2018
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