Item 4N Item 4N
Page 1 of 2
M E M O R A N D U M
(April 2, 2019)
To: Shana Yelverton, City Manager
From: Rob Cohen, Director of Public Works
Subject: Ordinance No. 895-D, 1st Reading, Adopt the 2019 Water
Conservation Plan.
Action
Requested: Ordinance No. 895-D, 1st Reading, Adopt the 2019 Water
Conservation Plan.
Background
Information: Beginning in 2009, under Title 30, Chapter 288 of the Texas
Administrative Code, cities must develop and adopt a Water
Conservation Plan for municipal water suppliers and submit it to the
Texas Water Development Board (TWDB) by May 1st. This plan
must be updated and resubmitted on a five-year cycle. The
previous plan was updated in April 2014. The next update of this
plan is due on May 1st, 2019.
The law further requires wholesale providers, like the City of Fort
Worth, to share the restrictions imposed by their plan with their
wholesale customers. As customers of the City of Fort Worth, the
City of Southlake’s plan must meet or exceed the City of Fort
Worth’s restrictions. This requirement is also listed in the City’s
wholesale water contract with the City of Fort Worth under Section
2.5.
In the 2019 Water Conservation Plan, the City will continue the
permanent, year-round, twice per week landscape irrigation
schedule. Irrigation systems are not to be operated between the
hours of 10 a.m. and 6 p.m. These requirements shall remain in
effect as imposed by the City of Fort Worth plan and as
recommended by Tarrant Regional Water District (TRWD).
New to the 2019 Water Conservation Plan , under 7.2 ‘Municipal
Best Management Practices’, is item 7.2.8 ‘Continue to Utilize
Smart Meters’. The focus has shifted to utilizing Beacon smart
meters to help identify customer leaks and water waste. The City
completed the process of converting all water meters to smart
meters in 2016.
Item 4N
Page 2 of 2
Upon adoption of this plan, the following twice per week landscape
irrigation schedule will continue for all customers of the City.
Watering Schedule
MONDAY No Outdoor Watering
TUESDAY & FRIDAY Non-Residential (Commercial, HOA, Parks, etc.)
WEDNESDAY & SATURDAY Residential address ending (0,2,4,6,8)
THURSDAY & SUNDAY Residential address ending (1,3,5,7,9)
Financial
Considerations: None
Strategic Link: This item links to the City’s Strategy Map relative to the strategic
focus areas of Performance Management & Service Delivery. It
specifically relates to the City’s Corporate Objective, B4: Provide
High Quality Services through Sustainable Business Practices.
Citizen Input/
Board Review: Citizen input will be received during the public hearing on April 16,
2019.
Legal Review: The City attorney has reviewed the ordinance.
Alternatives: The City Council may approve or deny the ordinance.
Supporting
Documents: Attachment A: City of Southlake 2019 Water Conservation Plan
Ordinance 895-D (included as Appendix A)
Staff
Recommendation: Ordinance No. 895-D, 1st Reading, Adopt the 2019 Water
Conservation Plan.
Staff Contact: Rob Cohen, Director of Public Works
1400 Main St.
Southlake, Texas 76092
PWS #2200075
Water Conservation Plan
for Retail Water Customers
April 2019
TABLE OF CONTENTS
1.0 INTRODUCTION AND OBJECTIVE ............................................................................................................ 4
2.0 TEXAS COMMISSION ON ENVIRONMENTAL QUALITY RULES ................................................................. 5
2.1 TCEQ RULES GOVERNING CONSERVATION PLANS ............................................................................. 5
2.2 GUIDANCE AND METHODOLOGY FOR REPORTING ON WATER CONSERVATION AND WATER USE .. 6
3.0 DESCRIPTION OF SERVICE AREA AND UTILITY PROFILE .......................................................................... 7
4.0 SPECIFICATION OF WATER CONSERVATION GOALS ............................................................................. 10
4.1 ANALYSIS OF BEST MANAGEMENT PRACTICES ................................................................................. 10
5.0 METERING, WATER USE RECORDS, CONTROL OF UNACCOUNTED ...................................................... 12
WATER, AND LEAK DETETECTION AND REPAIR .......................................................................................... 12
5.1 PRACTICES TO MEASURE AND ACCOUNT FOR THE AMOUNT OF WATER DIVERTED FROM THE CITY
OF FORT WORTH ..................................................................................................................................... 12
5.2 MONITORING AND RECORD MANAGEMENT PROGRAM FOR DETERMINING DELIVERIES, SALES,
AND LOSSES ............................................................................................................................................ 12
5.3 LEAK DETECTION, REPAIR AND WATER LOSS ACCOUNTING ............................................................ 12
6.0 OTHER REQUIRED CONSERVATION MEASURES .................................................................................... 13
6.1 PUBLIC EDUCATION AND INFORMATION ......................................................................................... 13
6.2 WATER RATE STRUCTURE ................................................................................................................. 14
6.3 IMPLEMENTATION AND ENFORCEMENT .......................................................................................... 14
6.4 COORDINATION WITH REGIONAL WATER PLANNING GROUPS ....................................................... 15
7.0 ADDITIONAL CONSERVATION EFFORTS ................................................................................................ 16
7.1 LANDSCAPE WATER MANAGEMENT................................................................................................. 16
7.2 MUNICIPAL BEST MANAGEMENT PRACTICES ................................................................................... 18
7.3 CONSERVATION PROGRAMS FOR RESIDENTIAL, INDUSTRIAL, COMMERCIAL, AND INSTITUTIONAL
ACCOUNTS .............................................................................................................................................. 20
8.0 ADOPTION OF WATER CONSERVATION PLAN; PERIODIC REVIEW AND UPDATE OF PLAN .................. .21
LIST OF TABLES
TABLE 3-1: 2019 STORAGE CAPACITIES ........................................................................................................ 8
TABLE 3-2: 2019 PUMPING CAPACITIES........................................................................................................ 9
TABLE 4-1: GPCD GOALS (2014) .................................................................................................................. 10
TABLE 4-2: WATER CONSERVATION BEST MANAGEMENT PRACTICES ...................................................... 11
TABLE 5-1: METER SIZE DISTRIBUTION ....................................................................................................... 13
TABLE 5-2: WATER LOSS GOALS (2014) ...................................................................................................... 14
TABLE 7-1: TWICE PER WEEK WATERING SCHEDULE ................................................................................. 17
LIST OF FIGURES
FIGURE 3-1: SOUTHLAKE’S WATER SERVICE AREA ....................................................................................... 7
FIGURE 3-2: TARRANT REGIONAL WATER DISTRICT SUPPLY SOURCES ........................................................ 8
APPENDICES
APPENDIX A ORDINANCE 895-D ADOPTING THIS WATER CONSERVATION PLAN
APPENDIX B CITY OF SOUTHLAKE UTILITY PROFILE BASED ON TCEQ FORMAT
APPENDIX C CITY OF SOUTHLAKE WATER CONSERVATION MASTER PLAN, AN ELEMENT OF THE
SOUTHLAKE 2030 COMPREHENSIVE PLAN
APPENDIX D LETTER TO TEXAS WATER DEVELOPMENT BOARD
APPENDIX E CITY OF SOUTHLAKE NON-PROMOTIONAL WATER RATE STRUCTURE
1.0 INTRODUCTION AND OBJECTIVE
Water supply has always been a key issue in the development of Texas. In recent years, the increasing
population and economic development of North Central Texas have led to growing demands for water
supplies. At the same time, local and less expensive sources of water supply are largely already
developed.
Additional supplies to meet future demands will be expensive and difficult to secure. Severe drought
conditions in past years have highlighted the importance of the efficient use of our existing supplies to
make them last as long as possible. Extending current supplies will delay the need for new supplies,
minimize the environmental impacts associated with developing new supplies, and delay the high cost
of additional water supply development.
Recognizing the need for efficient use of existing water supplies, the Texas Commission on
Environmental Quality (TCEQ) and Texas Water Development Board (TWDB) have developed guidelines
and requirements governing the development of water conservation plans. The City of Southlake has
developed this water conservation plan in accordance with TCEQ and TWDB guidelines and
requirements. To develop a regional approach, the City of Southlake consulted with Tarrant Regional
Water District (TRWD) and City of Fort Worth on their respective Water Conservation and Drought
Contingency Plans, since Southlake is a customer of both of these entities. This Water Conservation Plan
replaces the previous plan dated April 2014.
In addition, the City of Southlake developed this water conservation plan with guidance from the City of
Southlake Water Conservation Master Plan (Master Plan), an element of the Southlake 2030
Comprehensive Plan, a copy of which is provided in Appendix C. The Master Plan was adopted by
Southlake City Council on April 16, 2013 after careful consideration from the public, council members,
and staff, and is scheduled to be updated soon. This water conservation plan includes goals identified in
the Master Plan.
The City of Southlake recognizes that in order to achieve its goals of maximizing water conservation and
efficiency, it is necessary to develop and implement a water conservation plan that goes beyond basic
compliance with TCEQ guidelines and requirements. This plan reflects the City of Southlake’s
commitment to enhanced water conservation and efficiency strategies. The objectives of this Water
Conservation Plan are as follows:
• To reduce water consumption from the levels that would prevail without conservation efforts;
• To reduce the loss and waste of water;
• To improve efficiency in the use of water;
• Encourage efficient outdoor water use;
• And, to extend the life of current water supplies by reducing the rate of growth in demand.
The City’s plan will achieve significant conservation savings to help extend the life of existing supplies
without burdening the customer with unnecessary additional costs.
2.0 TEXAS COMMISSION ON ENVIRONMENTAL QUALITY RULES
2.1 TCEQ RULES GOVERNING CONSERVATION PLANS
The TCEQ rules governing development of water conservation plans for public water suppliers are
contained in Title 30, Part 1, Chapter 288, Subchapter A, Rule 288.2 o f the Texas Administrative Code.
For the purpose of these rules, a water conservation plan is defined as “A strategy or combination of
strategies for reducing the volume of water withdrawn from a water supply source, for reducing the loss
or waste of water, for maintaining or improving the efficiency in the use of water, for increasing the
recycling and reuse of water, and for preventing the pollution of water.” The elements in the TCEQ
water conservation rules covered in this conservation plan are listed below.
2.1.1 MINIMUM CONSERVATION PLAN REQUIREMENTS
The minimum requirements in the Texas Administrative Code for Water Conservation Plans for Public
Water Suppliers are covered in this report as follows:
• 288.2(a)(1)(A) – Utility Profiles – Section 3.0 and Appendix B
• 288.2(a)(1)(B) – Record Management System – Section 5.2
• 288.2(a)(1)(C) – Specific, Quantified Goals – Section 4.0
• 288.2(a)(1)(D) – Accurate Metering – Section 5.2
• 288.2(a)(1)(E) – Universal Metering – Section 5.2
• 288.2(a)(1)(F) – Determination and Control of Water Loss – Section 5.2 and 5.3
• 288.2(a)(1)(G) – Public Education and Information Program – Section 6.1
• 288.2(a)(1)(H) – Non-Promotional Water Rate Structure – Section 6.2
• 288.2(a)(1)(J) – Means of Implementation and Enforcement – Section 6.3
• 288.2(a)(1)(K) – Coordination with Regional Water Planning Group – Section 6.4 and Appendix D
• 288.2(c) – Review and Update of Plan – Section 8.0
2.1.2 CONSERVATION ADDITIONAL REQUIREMENTS (POPULATION OVER 5,000)
The Texas Administrative Code includes additional requirements for water conservation plans for
drinking water supplies serving a population over 5,000:
• 288.2(a)(2)(A) – Leak Detection, Repair, and Water Loss Accounting – Section 5.3
• 288.2(a)(2)(B) – Wholesale Water Supply Contract Conservation Measures – Fort Worth
Wholesale Water Contract
2.1.3 ADDITIONAL CONSERVATION STRATEGIES
The Texas Administrative Code lists additional conservation strategies, which may be adopted by
suppliers but are not required. Additional strategies adopted by the City of Southlake include the
following:
• 288.2(a)(3)(A) – Conservation Oriented Water Rates – Section 6.2 and 7.2.1
• 288.2(a)(3)(B) – Ordinances, Plumbing Codes or Rules on Water-Conserving Fixtures – Section
7.1.3 and 7.2.6
• 288.2(a)(3)(D) – Reuse and/or Recycling of Wastewater and/or Greywater – Section 7.3.4
• 288.2(a)(3)(F) – Considerations for Landscape Water Management Regulations – Section 7.1
2.2 GUIDANCE AND METHODOLOGY FOR REPORTING ON WATER
CONSERVATION AND WATER USE
In addition to TCEQ rules regarding water conservation, this plan also incorporates elements of the
Best Management Practices for Municipal Water Users document and the Guidance and Methodology
for Reporting on Water Conservation and Water Use developed by TWDB and TCEQ, in consultation with
the Water Conservation Advisory Council. These documents were developed in response to a charge
by the 82nd Texas Legislature to develop water use and calculation methodology and guidance for
preparation of water use reports and water conservation plans in accordance with TCEQ rules. The City
of Southlake has considered elements of these documents in preparation of this plan.
3.0 DESCRIPTION OF SERVICE AREA AND UTILITY PROFILE
The City of Southlake provides retail water and sewer service to approximately 29,440 residents (2018
population estimate). Figure 3-1 shows Southlake’s water service area.
F I G U R E 3 - 1: CITY OF S O U T H L A K E W A T E R S E R V I C E A R E A
WATER SERVICE AREA BOUNDARIES
The City purchases treated water from the City of Fort Worth through the Tarrant Regional Water
District (TRWD). This water is from five major sources, as seen in Figure 3-2:
F I G U R E 3 - 2: T A R R A N T R E G I O N A L W A T E R D I S T R I C T S U P P L Y S O U R C E S
1. The West Fork of Trinity River via Lake Bridgeport, Eagle Mountain Lake and Lake Worth;
2. Clear Fork of the Trinity River via Lake Benbrook; (A pipeline connects Lake Benbrook to the Rolling Hills Water
Treatment Plant to supplement supply to that plant. A pump station on the Clear Fork of the Trinity River also
supplies the Holly Water Treatment Plant.)
3. Cedar Creek Reservoir, located approximately 75 miles southeast of Fort Worth; and
4. Richland-Chambers Reservoir, located approximately 75 miles southeast of Fort Worth.
The City has two pressure planes with its service area. Storage capacities and pumping capacities for
delivering water are show below in Tables 3-1 and 3-2.
T A B L E 3 - 1 : 2019 S T O R A G E C A P A C I T I E S
Water Storage
Ground Elevated
High Pressure Plane
15 MG 4.5 MG
Low Pressure Plane 1.5 MG
T A B L E 3 - 2 : 2019 P U M P I N G C A P A C I T I E S
Rated
CapaCity
*Operating
CapaCity
**Pump Station Total
Operating Firm CapaCity
GPM GPM MGD
Pearson Pump Station – High Pressure Plane
Pump 1 2250 2360
6.8 Pump 2 2250 2360
Pump 3 2250 2360
Pearson Pump Station – Low Pressure Plane
Pump 1 3474 4600
19.9 Pump 2 3474 4600
Pump 3 3474 4600
Pump 4 3474 4600
T.W. King Pump Station – Low Pressure Plane
Pump 1 3474 4600
13.2 Pump 2 3474 4600
Pump 3 3474 4600
Total Pumping CapaCity 39.2
*Operating CapaCity: Pumping CapaCity operating against system pressure
**T otal Operating Firm Cap aCity: Pumping capaCity with largest pump out of service while
operating against system pressure
4.0 SPECIFICATION OF WATER CONSERVATION GOALS
TCEQ rules require the adoption of specific water conservation goals for a water conservation plan. The
goals for this water conservation plan include the following:
• Maintain the 5-year moving average total per capita water use below specified amount in Table
4-1.
• Maintain the level of water loss in the system below the specified amount in Table 5-2.
• Maintain a program of universal metering and meter replacement and repair as discussed in
Section 5.2.
• Increase efficient water usage and decrease waste in lawn irrigation by enforcement of
landscape water management regulations as described in Section 7.1.
• Raise public awareness of water conservation and encourage responsible public behavior by a
public education and information program as discussed in Section 6.1.
In the previous (2014) plan, total per capita use goals were 327 GPCD by 2020 and 311 GPCD by 2025.
As of 2018, Southlake’s five year average per capita use was 302 GPCD. In the last year alone, Southlake’s
GPCD was 277. This illustrates achieved conservation savings significantly ahead of the previous 2020
and 2025 goals. As Southlake continues to decrease its GPCD, the 2025 and 2030 goals have been
revised to reflect more accurate goals based on current water use trends. Southlake will use the
suggested 1% reduction in GPCD, per the City of Fort Worth Water Conservation Plan (Section
4.0). The current specific goals are outlined in Table 4-1. These goals were developed assuming a five
year average per capita, and therefore some dry years will see higher per capita usage than these five
year average goals. A series of dry years may lead to an average exceeding the goal.
T A B L E 4 - 1 : G P C D G O A L S (2019)
Description Five-Year Average as of 2018 2025 2030
Total GPCD 302 281 268
Residential GPCD 219 204 194
a. Total GPCD = (Total Gallons in System ÷ Permanent Population) ÷ 365
b. Residential GPCD = (Gallons Used for Residential Use ÷ Residential
Population) ÷ 365
4.1 LIST OF BEST MANAGEMENT PRACTICES
During each update of the Water Conservation Plan the City of Southlake has evaluated the Best
Management Practices (BMPs) outlined in the Best Management Practices for Municipal Water Users
document. In addition, the City of Southlake has evaluated BMPs through the adoption of the Water
Conservation Master Plan, as previously discussed in Section 1.0 of this plan.
For a complete list of the BMPs, refer to Table 4-2 on the following page. Table 4-2 is the implementation
schedule of the BMPs for the practices the City has implemented and the proposed implementation date
for additional strategies. Since the City is projected to reach its buildout population by 2030, the City
plans to conduct all BMPs in this plan before that point.
T A B L E 4 - 2: W A T E R C O N S E R V A T I O N B E S T M A N A G E M E N T P R A C T I C E S
I M P L E M E N T A T I O N S C H E D U L E
BMP
Description Currently
Implemented
Implemented
before 2020
Implemented
before 2025
Implemented
before 2030
5.3 System Water Audit and
Water Loss
6.1.1 Youth Education Review Program
6.1.2 Residential Consumer
Education
6.1.3 Licensed Trade Educational
Outreach
6.1.4
Property
Management Outreach
6.1.5 Partnerships with Water
Conserving Agencies
6.1.6 Landscape Guide Review Guide
6.2 Water Rate Structure Review Rates Review Rates Review Rates
6.3 Implementation and
Enforcement Procedures
Review
Enforcement
6.4 Coordination with Regional
Groups
7.1.2 Twice Per Week Watering
Schedule
7.1.2 Prohibition on Wasting
Water
7.1.3 Irrigation Permitting and
Inspection
Review
Program
7.2.1 Water Conservation Pricing
7.2.2 Water Conservation
Coordinator
Evaluate need for
full-time
coordinator
7.2.3 Meter Replacement
7.2.4 Weather Information for
Lawn Irrigation
7.2.5 Identify Water
Wells for Impact on
Municipal System
7.2.6 Plumbing Codes Review Codes
7.2.7 Municipal Water
Conservation Policy
7.2.8 Smart Meter Technology
7.3.1
Residential Landscape
Irrigation Incentives
Review
Program
7.3.2 Commercial Landscape
Irrigation Incentives
7.3.3 Water Consumption Impact
Analysis
Review
Program
7.3.4 Rainwater
Harvesting/Graywater
5.0 METERING, WATER USE RECORDS, CONTROL OF UNACCOUNTED
WATER, AND LEAK DETECTION AND REPAIR
One of the key elements in water conservation is careful tracking of w ater use and control of losses.
Programs for universal metering, meter testing, meter repair, and periodic meter replacement have
been developed using American Water Works Association (AWWA) standards and are important
elements in the City of Southlake’s program to control losses.
5.1 PRACTICES TO MEASURE AND ACCOUNT FOR THE AMOUNT OF WATER
DIVERTED FROM THE CITY OF FORT WORTH
Water delivered from the City of Fort Worth is metered both where it leaves the City of Fort Worth and
six (6) miles away where it enters the City of Southlake. This allows better leak detection in the
delivery lines.
5.2 MONITORING AND RECORD MANAGEMENT PROGRAM FOR DETERMINING
DELIVERIES, SALES, AND LOSSES
The City has an effective record management system in place. As required by TAC Title 30, Part 1,
Chapter 288, Subchapter A, Rule 288.2 (a)(2)(B), Southlake’s record management system allows for the
separation of water sales and uses into residential, commercial, municipal, and industrial categories.
This information is included in the TCEQ-required Water Conservation Implementation report, as
described in Section 6.3.
5.2.1 METERING ALL NEW CONNECTIONS AND RETROFIT OF EXISTING CONNECTIONS
The City meters all connections in the distribution system. Meters range in size from 3/4” to 8”. The
meter size distribution is included in Table 5-1 below. All meters meet AWWA accuracy standards when
installed.
T A B L E 5 - 1 : M E T E R S I Z E D I S T R I B U T I O N
Meter Size Total
3/4” 1,022
1” 9,303
2” 543
3” 49
4” 37
6” 7
8” 1
5.3 LEAK DETECTION, REPAIR AND WATER LOSS ACCOUNTING
The system water audit is used annually to monitor the total level of non-revenue water. There are
many variables which influence the revenue and non-revenue components of the City’s water system
including meter inaccuracy, data discrepancies, unauthorized consumption, reported breaks and leaks
and unreported losses. This BMP corresponds to WC-10 of the Master Plan.
The City of Southlake uses gallons per connection per day as its preferred water loss metric as it is less
variable than other metrics to climatic conditions. The five-year average water loss (gallons per
connection per day) was 20.8 GPCD or an average of 6.77% (as described in Section E of the Utility Profile
(Appendix B).
The City will continue to track water losses throughout the system by analyzing and updating the targets
and goals of this section annually in conjunction with the water audit. Because the City of Southlake
continues to measure a low water loss volume and percentage, the City will commit to maintaining the
current water loss volume and percentage as a moving average through 2030, as shown in Table 5-2.
T A B L E 5 - 2 : W A T E R L O S S G O A L S ( 2 0 1 4 )
Description Units 5 yr avg 2025 2030
Water Loss GPCD GPCD 25 25 25
Water Loss Percentage % 7 7 7
6.0 OTHER REQUIRED CONSERVATION MEASURES
6.1 PUBLIC EDUCATI ON AND INFORMATION
Developing a strategy for providing water conservation information to the general public is an effective
means of both promoting specific water conservation programs and practices and educating the public
about the importance of using water efficiently. Programs will be tailored to the community and the
audience it is being delivered to. In Southlake, a focus on the residential water customer should be one
of the target audiences due to residential nature of the community. Developing an outreach program to
residents, business owners, property managers, HOAs and others whose decisions may influence water
use at a residential or commercial property will also help to raise awareness about water conserving
techniques and technologies and encourage the decision makers to choose best practices. The City has
identified the following Public Education BMPs to be implemented during this 5-year plan.
6.1.1 SCHOOL/YOUTH EDUCATIONAL PROGRAM
The City will work with Tarrant Regional Water District to develop a program focused on educating the
City’s youth in partnership with local school districts, private schools and other youth oriented
organizations. Programs should focus on awareness about water use and how to adopt water
conserving habits. This BMP corresponds to WC-1 of the Master Plan.
6.1.2 RESIDENTIAL CONSUMER EDUCATIONAL PROGRAM
The City will develop a program for targeting residential consumers through various means such as
websites, media, direct mailings, personal contact, etc. These programs will focus on residential water
use, especially landscape water use, and how residents can take action to reduce water use. This may
also include participating in the Learn and Grow Program developed by Tarrant Regional Water
District, which provides presentations, workshops, and events geared towards water conservation
outreach. This BMP corresponds to WC-2 of the Master Plan.
6.1.3 LICENSED IRRIGATORS AND CONSTRUCTION TRADE EDUCATIONAL OUTREACH
PROGRAMS
The Water Efficient Recognized Green Professional Program (Green Pros) was developed in 2016 with
the Texas A&M AgriLife Extension Service in Tarrant County and Tarrant Regional Water District. Topics
include water conservation, low impact design, turfgrass, irrigation, and low-water-use plants. The target
audience of the program is green industry professionals such as landscapers, designers, and irrigators.
The City of Southlake will support the Green Pros program by promoting the program in our community.
This BMP corresponds to WC-3 of the Master Plan.
6.1.4 BUSINESS AND PROPERTY OWNER/MANAGER RELATIONS PROGRAM
Often property owners and managers can make influential decisions about water use at commercial and
institutional properties. The City will develop a relationship with property owners and managers, provide
educational opportunities and assist property owners and managers in making decisions to reduce
water use. This BMP corresponds to WC-4 of the Master Plan.
6.1.5 CONTINUE TO SEEK PARTNERSHIPS WITH AGENCIES TO PROMOTE WATER
CONSERVATION
The City will continue to seek and take advantage of partnerships with local entities such as City of
Fort Worth, Tarrant Regional Water District, and the Water Efficiency Network of North Texas (WENNT)
to promote water conservation on a regional scale. This may include symposiums, recurring
meetings, events and workshops, conference calls, among other methods. This BMP corresponds to
WC-5 of the Master Plan.
6.1.6 CONTINUE TO PROMOTE A LANDSCAPE GUIDE FOR THE GENERAL PUBLIC AND
LANDSCAPE PROFESSIONALS
The City will work with landscaping professionals and regional entities to update the guidance that
has been developed for the general public and landscape professionals. This guide will focus on
landscaping that promotes water conserving techniques. This BMP corresponds to WC-6 of the Master
Plan.
6.2 WATER RATE STRUCTURE
The City of Southlake has a conservation-oriented water rate structure in place. The City’s current rate
structure consists of either a residential, commercial, or special rates category . Usage charges are
assessed according to customer class and meter size. An increasing block rate structure is in place for
all classes to encourage water conservation. The City analyzes each customer class and sets rates in
proportion to those classes which place the most demands upon the water system. The rates shown
in Appendix E were effective as of October 1, 2018 and are subject to change as the City continues to
refine its rate structures to improve the impact on water conservation and manage the cost of
service most effectively.
6.3 IMPLEMENTATION AND ENFORCEMENT
The City of Southlake completes the Water Conservation Implementation Report as required by the
Texas Water Development by the 1st of May each year. The report includes various water conservation
strategies that have been implemented, including the date of implementation. Additionally, the report
includes progress made on the five and ten year per capita water use goals from this Plan. If the goals
are not being met, Southlake must document the reason why the City has not met its goals.
6.4 COORDINATION WITH REGIONAL WATER PLANNING GROUPS
The City has been working with Fort Worth and Tarrant Regional Water District, who in turn have been
working with the local Regional Water Planning Group (Region C), to help develop the water
conservation plan documents. Copies of the Water Conservation Plan will be sent to the Chairs of the
Region C Water Planning Group, The City of Fort Worth, and the Tarrant Regional Water District.
7.0 ADDITIONAL CONSERVATION EFFORTS
7.1 LANDSCAPE WATER MANAGEMENT
7.1.1 PREVIOUSLY ADOPTED PROHIBITIONS AND ENFORCEMENT MEASURES
The City has adopted ordinances that prohibit a number of water wasting activities. Prohibitions include:
• Watering between the hours of 10 am and 6 pm, when wind and solar evaporation is greatest;
• Watering during a rain event or a freeze event; commercial properties and new irrigation
systems are required to install a rain/freeze sensor on automatic sprinkler systems and owners
of existing residential systems are encouraged to install a rain/freeze sensor;
• Causing water waste through such activities as irrigating directly onto paved surfaces or
operating a system with broken equipment.
7.1.2 CONTINUE LAWN AND LANDSCAPE IRRIGATION RESTRICTIONS
The following lawn and landscape irrigation restrictions were adopted per ordinance 895-C in 2014 and
will remain in effect.
(a) Except for hand watering, drip irrigation and the use of soaker hoses, a person may only irrigate,
water, or cause or permit the irrigation or watering of any lawn or landscape located on
premises owned, leased, or managed by that person (i) on a day designated as an outdoor water
use day for the property’s address as shown below; and (ii) between the hours of 12 midnight to
10 a.m. and 6 p.m. to 12 midnight.
(1) Residential addresses ending in an even number (0, 2, 4, 6 or 8) may water on
Wednesdays or Saturdays.
(2) Residential addresses ending in an odd number (1, 3, 5, 7 or 9) may w ater on
Thursdays and Sundays.
(3) All non-residential locations (apartment complexes, businesses, industries, parks,
medians, etc.) may water on Tuesdays and Fridays.
T A B L E 7 - 1 : T W I C E P E R W E E K W A T E R I N G S C H E D U L E
Landscape Irrigation Schedule
Residential addresses ending (0,2,4,6,8) Wednesday & Saturday
Residential addresses ending (1,3,5,7,9) Thursday & Sunday
Non-residential (commercial, HOA, parks, etc.) Tuesday & Friday
(b) Except for hand watering, drip irrigation and the use of soaker hoses, a person commits an
offense if that person irrigates, waters, or causes or permits the irrigation or watering of any
lawn or landscape located on premises owned, leased, or managed by that person on a day that
is not designated as an outdoor water use for that property address as shown in subsection (a)
above.
(c) A person commits an offense if he knowingly or recklessly irrigates, waters, or causes or permits
the irrigation or watering of a lawn or landscape located on premises owned, leased or managed
by the person in a manner that causes:
(1) a substantial amount of water to fall upon impervious areas instead of a lawn or
landscape, such that a constant stream of water overflows from the lawn or landscape
onto a street or other drainage area; or
(2) an irrigation system or other lawn or landscape watering device to operate during any
form of precipitation.
(d) A person commits an offense if, on premises owned, leased, or managed by that person, a
person operates a lawn or landscape irrigation system or device that:
(1) has any broken or missing sprinkler heads; or
(2) has not been properly maintained in a manner that prevents the waste of water.
(e) Affirmative Defenses
(1) It shall be an affirmative defense to prosecution of an offense in (a) that at the time
such person irrigates, waters, or causes or permits the irrigation or watering of any lawn
or landscape, such activity was for the purpose of:
i. establishing hydromulch, grass sod, or grass seed;
ii. dust control of a sports field; or
iii. for the maintenance, repair, or testing of an irrigation system.
(2) Such activity described in Subsection (d)(1) may be an affirmative defense to
prosecution only if the activity occurred for a period of thirty consecutive days or less.
After the thirtieth consecutive day of such activity, a person who irrigates, waters, or
causes or permits the irrigation or watering of any lawn or landscape in violation of this
section shall be subject to administrative fees and criminal penalties.
(f) It shall be an exception to prosecution of an offense in this section, if a person who irr igates,
waters, or causes or permits the irrigation or watering does so by use of an alternative water
source such as a well, reclaimed or reused water, or water from the Trinity River if that person
has:
(1) Registered such alternative water source with the City;
(2) Provided sufficient proof to the director that the alternative water source is from a well,
reclaimed or reused water or from the Trinity River and has allowed inspection by the
director if deemed necessary; and
(3) Complied with the City's Backflow and Cross-connection Control Program and City Code
Sections 12.5-525 through 12.5-599.
7.1.3 REGULATE INSTALLATION OF IRRIGATION SYSTEMS
The City actively enforces TCEQ rules on irrigation installation, including the requirement that a licensed
irrigator install or make major repairs to an irrigation system. The City accepts and reviews irrigation
plans, per TCEQ rules.
In addition, the City has adopted codes specific to increasing the efficiency of new irrigation systems,
including a requirement that all new spray heads and rotors include pressure regulation. This decreases
over-pressurization at the spray head and reduces water waste.
In the future, the City will review the permitting and inspection processes to make modifications or
improvements. This review will correspond to WC-15 of the Master Plan.
include a focus on an effective process on ensuring a new system is highly efficient. This BMP
7.2 MUNICIPAL BEST MANAGEMENT PRACTICES
7.2.1 CONTINUE TO STUDY WATER CONSERVATION PRICING RATES
Water Conservation Pricing is the use of rate structures that discourage the inefficient use of or the
waste of water. Conservation pricing structures include increasing unit prices with increased
consumption such as inverted block rates, base rates and excess use rates such as water budget rates,
and seasonal rates. While the City has already established a water-conserving pricing structure, the City
will continue to study current the non-promotional water rates to ensure the effectiveness of the rate
structure. This BMP corresponds to WC-7 of the Master Plan.
7.2.2 EMPLOY A WATER CONSERVATION COORDINATOR
A common element in successful conservation programs is a conservation coordinator who is
responsible for implementing and maintaining the conservation program. This person would be
responsible for preparing and implementing the City’s water conservation and drought contingency
plans, prepare and submit the annual conservation status reports, and implement the utility’s
conservation program. The City has identified a water conservation coordinator as important in fully
implementing the elements of this plan. This BMP corresponds to WC-8 of the Master Plan.
7.2.3 METER REPLACEMENT AND TESTING
An efficient metering system raises a customer’s awareness of the true amount of water the customer is
consuming, which can help the customer make changes to his or her habits. The City implemented a
meter exchange program in 2008 that provides for the annual replacement of 10% of the City’s
meters each year. Large meters not included in the annual replacement program are tested and
repaired or replaced annually. The master meters measuring total volume of water delivered to the City
were replaced in 2008, with the addition of a meter in 2012, and are tested annually. This BMP
corresponds to WC-9 of the Master Plan.
7.2.4 UTILIZE WEATHER STATIONS TO PROVIDE OUTDOOR IRRIGATION INFORMATION
Currently, the City utilizes weather stations located at sites with City property, like lift stations, pump
stations, and parks. TRWD has developed an interactive weather station program to install weather
stations throughout its service area to provide consumers with weekly watering advice and other
irrigation efficiency information through the Water is Awesome website.
This service will provide the public advanced information regarding outdoor irrigation needs, thereby
reducing water use. A weekly email that will tell the customer how long (in minutes) an irrigation
system needs to run based on the past seven days of weather. This recommendation provides the actual
amount of supplemental water that is required for a healthy lawn based on research of the Texas A&M
AgriLife Extension Service
and proven technologies. Southlake will promote this program, encourage its retail and wholesale
customers to participate in the program, and make the information available through its website. This
BMP corresponds to WC-11 of the Master Plan.
7.2.5 INVENTORY OF WELL WATER
Many of Southlake’s water customers utilize groundwater as a source. More than 65% of well water
applications have indicated the groundwater is used for irrigation purposes. The relationship between
self-reliant well water users and municipally provided water arises when wells dry up, pumps fail, or for
other reasons property owners choose to utilize municipal water. This potential demand is unaccounted
for and the City has identified the need to maintain an inventory of existing water wells. This BMP
corresponds to WC-12 and WC-13 of the Master Plan.
7.2.6 PERIODICALLY REVIEW WATER CONSERVING ORDINANCES
The City has adopted a number of water conserving policies in building codes, including the 2015
residential code, 2015 plumbing code, and 2015 energy code. As discussed in section 7.1.3 the City has
adopted landscape irrigation code that promotes water conserving features.
Because technology frequently changes, codes should reflect technological advancements and policy
should reflect changes in attitudes. The City will review plumbing codes on a frequency of once every
five years to identify relevant changes that promote further water conservation. This BMP corresponds
to WC-14 of the Master Plan.
7.2.7 DEVELOP A MUNICIPAL WATER CONSERVATION POLICY
The City will implement a policy of adopting water conserving features, where possible. Replacement at
older facilities water fixtures will be of more efficient fixtures. Implementing the replacement of older
building water fixtures such as toilets, urinals, lavatory faucets, irrigation, cooling towers and water
brooms with higher efficiency water fixtures will help reduce the water consumption in these buildings
that are consistently occupied. This BMP corresponds to WC-15 of the Master Plan.
7.2.8 CONTINUE TO UTILIZE ADVANCED METER INFRASTRUCTURE
New technology known as Advanced Metering Infrastructure (AMI) has the potential to change the way
water consumption is measured. In 2016, Southlake completed the process of converting to totally
electronic meters which provides customer interface through smart-phone apps and desktop software to
promote customer awareness and tool for detecting household leaks and water waste. The City will also
use this technology to identify backflow incidents and water theft. This BMP corresponds to WC-17 and
WC-18 of the Master Plan.
7.3 CONSERVATION PROGRAMS FOR RESIDENTIAL, INDUSTRIAL,
COMMERCIAL, AND I NSTITUTIONAL ACCOUNTS
7.3.1 RESIDENTIAL IRRIGATION SYSTEM EVALUATION AND REPAIR REBATE PROGRAM
The City currently contracts with a vendor to promote water conserving techniques in existing landscape
irrigation systems. The vendor evaluates the irrigation system for leaks, breaks, misalignments, and
other issues that create inefficiencies. The City follows up by offering a rebate to the homeowner to
offset the cost of repairs and changes to the system to make it more efficient. This BMP corresponds to
WC-19 of the Master Plan.
7.3.2 COMMERCIAL AND INSTITUTIONAL IRRIGATION EVALUATION AND REPAIR REBATE
PROGRAM
The City will consider expanding the program described in section 7.3.1 to offer irrigation evaluations
and repair rebates to commercial and institutional customer that use large amounts of water. This BMP
corresponds to WC-22 of the Master Plan.
7.3.3 WATER CONSUMPTION IMPACT ANALYSIS
To help determine how new development will impact the water system, the City will require certain
developments to complete a consumption impact analysis. This impact analysis will help the City assess
water use as the City reaches a built-out phase. This BMP corresponds to WC-20 of the Master Plan.
7.3.4 RAINWATER HARVESTING AND GRAYWATER USE
Residential harvesting, condensate reuse, and graywater use are potential alternative water supplies.
Large properties with the potential to utilize these alternative non-potable uses for landscaping
irrigation can help conserve municipally-supplied sources. The City will seek out a cost-effective measure
to encourage the use of these alternative sources. This BMP corresponds to WC-21 of the Master Plan.
8.0 ADOPTION OF WATER CONSERVATION PLAN; PERIODIC REVIEW AND
UPDATE OF PLAN
All of the BMPs in this plan were selected for the City of Southlake through the adoption of the Master
Plan. Opportunity for public comment on the Master Plan was provided as described in Section 1.0.
Opportunity for public comment on this plan is provided at a City of Southlake City Council Meetings on
April 2, 2019 for the first reading of Ordinance 895-D and on April 16, 2019 for the second reading and
public hearing after which this Water Conservation Plan will be adopted. TCEQ and TWDB require that
Water Conservation Plans be reviewed and, if necessary, updated every five years to coincide with the
regional water planning process. This Water Conservation Plan will be updated as required by TCEQ and
TWDB and, in addition, will be continually reassessed for opportunities to improve water efficiency and
conservation based on new or updated information.
Appendix A: Ordinance 895-D Adopting this Water Conservation Plan
ORDINANCE NO. 895-D
AN ORDIN ANCE OF THE CITY OF SOUTHLAKE, TEXAS,
AMENDING THE WATER CONSERV ATION PLAN FOR THE
CITY OF SOUTHL AKE, TEXAS; ESTABLISHING
RESTRICTIONS ON CERTAIN W ATER USES; ESTABLISHING
REQUIREMENTS FOR IRRIGATION SYSTEMS; ESTABLISHING
BEST MAN AGEMENT PRACTICES; ESTABLISHING
PENALTIES FOR THE VIOLATION OF AND PROVISIONS FOR
ENFORCEMENT OF THESE RESTRICTIONS; ESTABLISHING
PROCEDURES FOR GRANTING V ARI ANCES; AND PROVIDING
CUMULATIVE AND SEVERABILITY AND SAVINGS CL AUSES;
AND AN EFFECTIVE DATE.
WHEREAS, the City Council finds that conservation of water and
protection of water supplies are in the best interest of its citizens; and
WHEREAS, the City is required to submit updated water conservation and
drought contingency and emergency water management plans to the Texas
Commission on Environmental Quality (TCEQ) and the Texas W ater
Development Board by May 1, 2019 in accordance with Title 30 of the Texas
Administrative Code, Chapter 288; and
WHEREAS, in an effort to increase water conservation across the region
and at the request of Tarrant Regional W ater District, staff also recommends the
continuation of permanent, year round twice per week watering restrictions; and
WHEREAS, the City of Fort W orth is continuing the permanent, year
round twice per week watering restrictions; and
WHEREAS, the City entered into a Contract for W ater Service with the
City of Fort W orth on November 16, 2010 to purchase treated water of potable
quality and Section 2.5 of this Contract requires the City of Southlake, to institute
and apply the same rationing, conservation measures, or restrictions to the use
of water as Fort W orth in the event the City of Fort W orth implements such water
conservation measures;
NOW, THEREFORE, BE IT ORD AINED BY THE CITY COUNCIL OF
THE CITY OF SOUTHLAKE:
SECTION 1
Emergency Authority
(a) Purpose and scope. The purpose of this ordinance is to revise the City’s
plan to promote the efficient use of the water resources available to the region by
establishing rules for irrigation uses, preventing the waste of water and
recommending best management practices to promote water conservation . This
Ordinance applies to all persons and premises within the City using water from
the City’s water syste m.
(b) Water Conservation Plan. The City of Southlake, Texas, hereby adopts
amendments to the W ater Conservation Plan, (the “Plan”), to which this
ordinance is attached as Appendix “A”.
SECTION 2
Violations and Penalties
(a) A person commits an offense if the person knowingly makes, causes or
permits a use of water contrary to the measures implemented by the City
Manager as prescribed in the Plan. For purposes of this subsection, it is
presumed that a person has knowingly made, caused or permitted a use of water
contrary to the measures implemented if the mandatory measures have been
formally ordered consistent with the terms of Section 1 and:
(1) the manner of use has been prohibited by the Plan; or
(2) the amount of water used exceeds that allowed by the Plan; or
(3) the manner or amount used violates the terms and conditions of a
compliance agreement made pursuant to a variance granted by the
City of Fort W orth pursuant to Section 3 hereof.
(b) Any person who violates, disobeys, omits, neglects or refuses to comply
with a measure implemented in accordance with this ordinance and the Plan
shall be fined not more than two thousand dollars ($2,000.00) for each offense.
In addition, the following penalties shall apply:
(1) If a person is convicted of violating, disobeying, omitting, ne glecting
or refusing to comply with a measure implemented in accordance with this
section and the drought contingency/emergency water management plan two
times, the City may issue a citation or install a flow restrictor in the water line to
the premises where the violations occurred to limit the amount of water that may
pass through the meter in a twenty-four-hour period; and
(2) If a person is convicted of violating, disobeying, omitting, neglecting
or refusing to comply with a measure implemented in a ccordance with this
section and the drought contingency/emergency water management plan three
times, the City may discontinue water service to the premises where the violation
occurred.
SECTION 3
Authority Under Other Laws
Nothing in this Ordinance shall be construed to limit the authority of the
Mayor, the City Council or the City Manager to seek emergency relief under the
provisions of any state or federal disaster relief act.
SECTION 4
Cumulative Clause
This ordinance shall be cumulative of all provisions of ordinances of the
City of Southlake, Texas, except where the provisions of this ordinance are in
direct conflict with the provisions of such ordinances, in which event, the
conf licting provisions of such ordinances are hereby repealed. Ordinance No.
895-C is hereby repealed.
SECTION 5
Savings Clause
It is hereby declared to be the intention of the City Council that the
phrases, clauses, sentences, paragraphs and sections of this ordinance are
severable, and if any phrase, clause, sentence, paragraph or section of this
ordinance shall be declared unconstitutional by the valid judgment or decree of
any court of competent jurisdiction, such unconstitutionality shall not affect any of
the remaining phrases, clauses, sentences, paragraphs and sections of this
ordinance, since the same would have been enacted by the City Council without
the incorporation in this Ordinance of any such unconstitutional phrase, clause,
sentence, paragraph or section.
SECTION 6
Publication Clause
The City Secretary of the City of Southlake is hereby directed to publish
the proposed ordinance or its caption and penalty together with a notice setting
out the time and place for a public hearing thereon at least ten (10) days before
the second reading of this ordinance, and if this ordinance provides for the
imposition of any penalty, fine or forfeiture for any violation of any of its
provisions, then the City Secretary shall additionally publish this ordinance or its
caption and penalty in the official City newspaper one time within ten (10) days
after f inal passage of this ordinance, as required by Section 3.13 of the Charter
of the City of Southlake, Texas.
SECTION 7
Severability Clause
All rights and remedies of the City of Southlake, Texas, are expressly
saved as to any and all violations of the provisions of Ordinance No. 895-C or
any other ordinances affecting which have accrued at the time of the effective
date of this ordinance; and, as to such accrued violations and all pending
litigation, both civil and criminal, whether pending in court or not, under such
ordinances, same shall not be affected by this ordinance but may be prosecuted
until final disposition by the courts.
SECTION 8
Effective Date
This ordinance shall be in full force and effect from and after its passage
and publication as required by law, and it is so ordained.
P ASSED AND APPROVED ON FIRST READING ON THIS 2nd DAY OF April,
2019.
Mayor/Laura Hill
ATTEST:
City Secretary/Amy Shelley
PASSED AND APPROVED ON SECOND READING ON THIS 16th DAY OF
April, 2019.
Mayor/Laura Hill
ATTEST:
City Secretary/Amy Shelley
APPROVED AS TO FORM AND LEG ALITY:
City Attorney
Date:
Adopted:
Eff ective:
Appendix B: City of Southlake Utility Profile Based on TWDB Format
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 1 of 12
1950 E. Southlake Blvd.
76092 Zip+4:
8177488638
Southlake State: TX
acarlisle@ci.southlake.tx.us
CONTACT INFORMATION
Name of Utility: City of Southlake
Public Water Supply Identification Number (PWS ID):
TX2200075
Certificate of Convenience and Necessity (CCN) Number:
Surface Water Right ID Number:
Wastewater ID Number:
10101
Contact: First Name:
Ashley
Last Name:
Carlisle
Title: Environmental Coordinator
Address: City:
Zip Code:
Telephone Number:
Is this person the designated Conservation
Coordinator?
Email:
Date:
Yes No
Regional Water Planning Group: C
Groundwater Conservation District:
Our records indicate that you:
Received financial assistance of $500,000 or more from TWDB
Have 3,300 or more retail connections
Have a surface water right with TCEQ
A. Population and Service Area Data
1. Current service area size in square miles: 22
Attached file(s):
File Name File Description
City of Southlake Service
Area.png
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 2 of 12
2. Historical service area population for the previous five years,
starting with the most current year.
Year Historical Population
Served By
Retail Water Service
Historical Population
Served By Wholesale
Water Service
Historical Population
Served By
Wastewater Water
Service
2018 29,440 0 29,440
2017 28,880 0 28,880
2016 28,568 0 28,568
2015 27,833 0 27,833
2014 26,575 0 26,575
3. Projected service area population for the following decades.
Year Projected Population
Served By
Retail Water Service
Projected Population
Served By Wholesale
Water Service
Projected Population
Served By
Wastewater Water
Service
2020 31,540 0 31,540
2030 34,188 0 34,188
2040 34,188 0 34,188
2050 34,188 0 34,188
2060 34,188 0 34,188
4. Described source(s)/method(s) for estimating current and projected populations.
The City's Master Plan estimates that the City will reach its build-out population by 2029. Population
estimates were derived using linear growth through 2030, at which point growth remains flat.
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 3 of 12
B. System Input
System input data for the previous five years.
Total System Input = Self-supplied + Imported – Exported
Year Water Produced in
Gallons
Purchased/Imported
Water in Gallons
Exported Water in
Gallons
Total
System
Input
Total GPCD
2018 0 2,979,374,794 0 2,979,374,79
4
277
2017 0 3,277,743,438 0 3,277,743,43
8
310
2016 0 2,969,028,911 0 2,969,028,91
1
284
2015 0 3,011,513,987 0 3,011,513,98
7
296
2014 0 3,336,522,971 0 3,336,522,97
1
343
Historic 5-
year Average
0 3,114,836,820 0 3,114,836,82
0
302
C. Water Supply System
1. Designed daily capacity of system in gallons 39,200,000
2. Storage Capacity
2a. Elevated storage in gallons:
2b. Ground storage in gallons:
6,000,000
15,000,000
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 4 of 12
D. Projected Demands
1. The estimated water supply requirements for the next ten years using population
trends, historical water use, economic growth, etc.
Year Population Water Demand (gallons)
2020 30,231 2,998,542,869
2021 30,627 3,007,442,799
2022 31,023 3,012,865,053
2023 31,418 3,023,721,876
2024 31,814 3,031,215,255
2025 32,210 3,038,256,394
2026 32,605 3,044,760,206
2027 33,001 3,050,922,565
2028 33,397 3,056,657,201
2029 33,792 3,061,881,443
2. Description of source data and how projected water demands were determined.
The City's Master Plan estimates that the City will reach its build-out population by 2029. Population
estimates were derived using linear growth for the 10-year period. Water demands are based on a 1%
reduction in GPCD and linear population growth over the same period.
E. High Volume Customers
1. The annual water use for the five highest volume
RETAIL customers.
Customer Water Use Category Annual Water Use Treated or Raw
City of Southlake Institutional 58,805,303 Treated
Carroll ISD Institutional 32,371,228 Treated
RPAI Southwest
Management
Commercial 19,881,387 Treated
Verizon Wireless Commercial 19,693,493 Treated
TD Ameritrade Commercial 19,317,422 Treated
2. The annual water use for the five highest volume
WHOLESALE customers.
Customer Water Use Category Annual Water Use Treated or Raw
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 5 of 12
F. Utility Data Comment Section
Additional comments about utility data.
The City of Southlake does not have any Wholesale Customers. The City has four different account types:
residential, commercial, irrigation, and HOA. For the purpose of this profile, HOA and irrigation accounts are
included with the commercial accounts.
Section II: System Data
A. Retail Water Supplier Connections
1. List of active retail connections by major water use category.
Water Use Category
Type
Total Retail
Connections (Active +
Inactive)
Percent of Total
Connections
Residential - Single Family 9,465 86.34 %
Residential - Multi-Family 0 0.00 %
Industrial 44 0.40 %
Commercial 1,449 13.22 %
Institutional 4 0.04 %
Agricultural 0 0.00 %
Total 10,962 100.00 %
2. Net number of new retail connections by water use category for the
previous five years.
Net Number of New Retail Connections
Year Residential -
Single
Family
Residential -
Multi-Family
Industrial Commercial Institutional Agricultural Total
2018 91 0 44 14 0 0 149
2017 133 0 0 73 0 0 206
2016 167 0 0 56 0 0 223
2015 192 0 0 33 0 0 225
2014 151 0 0 40 0 0 191
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 6 of 12
B. Accounting Data
The previous five years’ gallons of RETAIL water provided in each major water use category.
Year Residential -
Single
Family
Residential -
Multi-Family
Industrial Commercial Institutional Agricultural Total
2018 2,170,367,587 807,225 660,805,862 42,485,460 2,874,466,13
4
2017 2,312,453,804 0 6,913,040 672,143,490 0 0 2,991,510,33
4
2016 2,198,915,980 0 0 574,809,199 0 0 2,773,725,17
9
2015 2,271,401,131 0 0 591,941,621 0 0 2,863,342,75
2
2014 2,416,859,093 0 0 695,745,668 0 0 3,112,604,76
1
C. Residential Water Use
The previous five years residential GPCD for single family and multi-family units.
Year Residential -
Single Family
Residential -
Multi-Family
Total
Residential
2018 201 0 201
2017 219 0 219
2016 211 0 211
2015 224 0 224
2014 241 0 241
Historic
Average
219 0 219
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 7 of 12
D. Annual and Seasonal Water Use
1. The previous five years’ gallons of treated water provided to RETAIL
customers.
Month
Total Gallons of Treated Water
2018 2017 2016 2015 2014
January 134,813,000 145,374,546 137,782,298 124,689,153 123,145,680
February 115,020,000 159,841,195 168,748,372 115,775,943 127,393,519
March 169,584,000 206,164,009 142,524,959 120,335,280 132,653,818
April 233,135,000 237,399,755 205,660,051 145,367,444 203,181,491
May 334,052,000 360,206,544 186,378,525 124,899,321 237,231,836
June 402,539,000 279,907,186 270,461,504 264,533,812 335,620,833
July 489,401,000 418,530,981 443,008,774 410,386,228 320,907,442
August 431,916,000 324,159,262 395,076,773 605,723,122 392,684,114
September 227,721,000 397,631,887 342,240,615 457,252,301 482,637,111
October 162,653,000 303,995,026 331,240,615 346,924,901 253,126,992
November 146,784,000 242,330,603 203,760,713 149,417,900 253,126,992
December 131,756,794 180,452,364 141,442,582 115,823,542 253,126,992
Total 2,979,374,794 3,255,993,358 2,968,325,781 2,981,128,947 3,114,836,820
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 8 of 12
2. The previous five years’ gallons of raw water provided to RETAIL customers.
Month
Total Gallons of Raw Water
2018 2017 2016 2015 2014
January 0 0 0 0 0
February 0 0 0 0 0
March 0 0 0 0 0
April 0 0 0 0 0
May 0 0 0 0 0
June 0 0 0 0 0
July 0 0 0 0 0
August 0 0 0 0 0
September 0 0 0 0 0
October 0 0 0 0 0
November 0 0 0 0 0
December 0 0 0 0 0
Total 0 0 0 0 0
3. Summary of seasonal and annual water use.
Summer RETAIL
(Treated + Raw)
Total RETAIL
(Treated + Raw)
2018 1,323,856,000 2,979,374,794
2017 1,022,597,429 3,255,993,358
2016 1,108,547,051 2,968,325,781
2015 1,280,643,162 2,981,128,947
2014 1,049,212,389 3,114,836,820
Average in Gallons 48,207,133.59 127,497,164.17
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 9 of 12
E. Water Loss
Water Loss data for the previous five years.
Year Total Water Loss
in Gallons
Water Loss in
GPCD
Water Loss as a
Percentage
2018 173,240,079 17 5.70 %
2017 222,495,208 21 6.79 %
2016 195,303,732 19 6.58 %
2015 110,527,310 11 3.67 %
2014 182,211,673 19 5.46 %
Average 176,755,600 17 5.64 %
F. Peak Day Use
Average Daily Water Use and Peak Day Water Use for the previous five years.
Year Average Daily
Use (gal)
Peak Day Use
(gal)
Ratio
(peak/avg)
2014 8,533,799 11404482 1.3364
2015 8,167,476 13920034 1.7043
2016 8,132,399 12049424 1.4817
2017 8,920,529 11115189 1.2460
2018 8,162,670 14389739 1.7629
G. Summary of Historic Water Use
Water Use Category Historic
Average
Percent of
Connections
Percent of
Water Use
Residential - Single
Family
2,273,999,519 86.34 % 77.79 %
Residential - Multi-Family 0 0.00 % 0.00 %
Industrial 1,544,053 0.40 % 0.05 %
Commercial 639,089,168 13.22 % 21.86 %
Institutional 8,497,092 0.04 % 0.29 %
Agricultural 0 0.00 % 0.00 %
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 10 of 12
H. System Data Comment Section
The City of Southlake purchases all of its water (treated) from the City of Fort Worth. Southlake sells no raw
water.
Section III: Wastewater System Data
A. Wastewater System Data
1. Design capacity of wastewater treatment plant(s) in gallons per day:
2. List of active wastewater connections by major water use category.
Water Use
Category
Metered Unmetered Total
Connections
Percent of
Total
Connections
Municipal 8352 0 0 91.86 %
Industrial 0 0 0 0.00 %
Commercial 740 0 0 8.14 %
Institutional 0 0 0 0.00 %
Agricultural 0 0 0 0.00 %
Total 0 0 0 100.00 %
3. Percentage of water serviced by the wastewater system: 83%
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 11 of 12
4. Number of gallons of wastewater that was treated by the utility for the previous five years.
Month
Total Gallons of Treated Water
2018 2017 2016 2015 2014
January 90,152,640 100,164,960 105,999,840 88,175,520 87,117,120
February 108,734,400 89,552,160 96,298,560 74,072,160 77,621,760
March 115,032,960 96,082,560 112,465,440 109,172,160 87,989,760
April 101,458,080 99,987,840 111,405,600 109,172,160 86,840,640
May 105,526,000 92,047,680 112,478,400 136,225,440 92,154,240
June 100,926,000 97,712,640 111,211,200 100,413,000 93,016,800
July 101,703,000 93,101,760 103,239,360 97,325,640 91,028,160
August 99,632,160 92,993,760 102,778,560 96,333,120 89,928,000
September 104,821,920 83,724,480 96,177,600 91,983,240 89,928,000
October 129,804,000 87,694,560 95,843,520 107,068,320 85,966,560
November 105,178,000 83,617,920 93,738,240 117,364,320 81,033,120
December 98,657,640 93,192,480 95,567,040 120,260,160 85,610,880
Total 1,261,626,800 1,109,872,800 1,237,203,360 1,247,565,240 1,048,235,040
5. Could treated wastewater be substituted for potable water?
Yes No
B. Reuse Data
1. Data by type of recycling and reuse activities implemented during the current reporting period.
Type of Reuse Total Annual Volume
(in gallons)
On-site Irrigation 0
Plant wash down 0
Chlorination/de-chlorination 0
Industrial 0
Landscape irrigation
(park, golf courses)
0
Agricultural 0
Discharge to surface water 0
Evaporation Pond 0
Other 0
Total 0
UTILITY PROFILE FOR RETAIL WATER SUPPLIER
Page 12 of 12
C. Wastewater System Data Comment
Additional comments and files to support or explain wastewater system data listed below.
All of the wastewater collected in the City's sewer system is treated through a contract with the Trinity
River Authority. Approximately one-third of the wastewater is treated at the Denton Creek wastewater
treatment plant, with the rest being treated at the Central Regional Wastewater System treatment plant.
Because Southlake's contribution to each of these plants is small relative to the plants' capacities,
Question #1 does not pertain to this utility profile. Because we have no treatment facilities within City
boundaries, we do not have access to reused water data at this time.
Appendix C: City of Southlake Water Conservation Master Plan, an Element of
the Southlake 2030 Comprehensive Plan
City of Southlake
Water Co nservation Master Plan
An Element of the Southlake 2030 Comprehensive Plan
Adopted by Southlake City Council
Ordinance No. 1061
April 16, 2013
Prepared by
Planning & Development Services Department
and
Public Works Department
CITY COUNCIL PLANNING & ZONING COMMISSION
John Terrell Robert Hudson
Martin Schelling D. Todd Parish
Carolyn Morris
Place 2 Michael Springer
Brandon Bledsoe
Mayor Pro Tem, Place 3 Michael Forman
Al Zito
Place 4 Laird Fairchild
Jeff Wang
Place 5 Kate Smith
Pamela A. Muller
ACKNOWLEDGEMENTS
Mayor Chairman
Place 1 Vice Chairman
Deputy Mayor Pro Tem, Place 6
CITY STAFF
Shana K. Yelverton
City Manager
Caroline Eckel, AICP
Assistant to the City Manager
Bob Price, P.E.
Director of Public Works
Chuck Kendrick
Deputy Director of Public Works - Operations
Christi Upton
Environmental Coordinator
Ken Baker, AICP
Senior Director of Planning & Development Services
Dennis Killough, AICP
Deputy Director of Planning & Development Services
Daniel Cortez, AICP
Planner II
Patrick Whitham, GISP
GIS Analyst
Sean Leonard
Reporting / Compliance Manager
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 1
1.0 INTRODUCTION 2
1.1 Overview of Water Consumption in Texas 2
1.2 The Texas State Water Plan 5
1.3 Purpose and Relationship to the Comprehensive Plan 7
1.4 Relationship to Southlake’s Strategic Management System 7
1.5 Goals & Objectives 10
2.0 WATER SYSTEM PROFILE 11
2.1 Description of Water Use 12
2.2 Managing Water Demand Peaks 15
2.3 Drought and Water Demands in Southlake 16
2.4 Future Supply Challenges 18
2.5 Other Considerations 18
3.0 CURRENT MEASURES 21
3.1 Public Education Measures 21
3.2 Ordinances 21
3.3 Programs 22
4.0 PROCESS AND IMPLEMENTATION 24
4.1 Cost effectiveness 24
4.2 Estimated water savings 24
4.3 Relevance to Local Conditions 25
4.4 Challenges to Implementation 25
4.5 Plan Implementation 26
5.0 WATER CONSERVATION MEASURES 28
5.1 Education & Outreach Programs 28
5.2 Municipal Programs & Policies 31
5.3 Residential & Commercial Programs &Policies 34
APPENDIX A: Water Conservation Plan 36
APPENDIX B: Drought Contingency/Emergency Water Management Plan 41
APPENDIX C: Vision Goals and Objectives 50
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 2
1.0 INTRODUCTION
In Southlake, water conservation
is envisioned to include a set of
strategies which will enable the
City to utilize essential water
resources in a wise and prudent
manner, both through supply
management, in which the City of
Southlake maximizes the efficient
delivery and use of water, and
through demand management in
which the customer practices the
efficient use of this finite resource.
Water conservation is not a
matter of continually reducing
water use without limit. Nor is it intended to deprive our community of
the benefits for which it was intended, including the essential benefits
of health and sanitation, nutrition, aesthetics and the appealing
environment we all enjoy. Water that remains in our streams and
reservoirs provide us many benefits which are important to our
customers and our community. When water is used efficiently, more
water can remain for recreation, wetlands, dilution, natural aesthetics,
and habitat for fish and other wildlife. When demands are manageable
the City can ensure its ability to provide water adequately as the
community grows. Customers benefit by extending supplies, protecting
the environment, and the wise use of their money.
Water conservation is not free and may not always be cheap. When
customers use less water, the City of Southlake's costs do not decrease
proportionally. On the other hand, conservation defers the need for
supply expansion, thereby deferring some water rate increases. In any
case, since not everyone conserves at the same rate, those who
conserve will definitely save more money than those who do not.
Many of the programs contained in this plan -- leak detection, billing
information, education programs – place accountability on the City. Yet
much of the potential savings must come from the actions and habits
of our water customers. Water conservation is many small actions that
add up to a big difference. It makes sense and saves cents.
SOUTHLAKE 2030 VISION STATEMENT
Southlake will continue to enhance its status as a desirable,
attractive, safe, healthy and fiscally-sound community with quality
neighborhoods, while maintaining a high standard of living,
learning, shopping, working, recreation, and open spaces. Southlake
will continue to be a vibrant community that epitomizes both
economic and environmental sustainability.
1.1 Overview of Water Consumption in Texas
Though Southlake through the development of this plan is addressing
issues within its boundaries, it cannot ignore the fact that there are
larger issues facing the region and state which in turn directly affects
the City. Growing at a rate of approximately 1,100 people per day over
the last decade, Texas is one of the fastest growing states in the nation.
By 2060, the population of the state is projected to increase to over 46
million people. Rapid growth, combined with Texas’ robust economy
and susceptibility to drought, makes water supply a crucial issue. If
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 3
water infrastructure and water management strategies are not
implemented, Texas could face serious social, economic, and
environmental consequences in both the large metropolitan areas as
well as the vast rural areas of the state.
PROJECTED WATER DEMAND AND EXISTING SUPPLIES (ACRE-FEET PER YEAR)
Although the population in Texas is projected to increase 82 percent
over 50 years, water demand in the state is projected to increase by
only 22 percent, from about 18 million acre-feet per year in 2010 to a
demand of about 22 million acre-feet per year in 2060. Demand for
municipal water (including rural county-other) is expected to increase
from 4.9 million acre-feet in 2010 to 8.4 million acre-feet in 2060.
However, demand for agricultural irrigation water is expected to
decrease, from 10 million acre-feet per year in 2010 to about 8.4
million acre-feet per year in 2060, due to more efficient irrigation
systems, reduced groundwater supplies, and the transfer of water
rights from agricultural to municipal uses. Water demands for
manufacturing, steam-electric, power generation and livestock are
expected to increase, while mining demand is expected to remain
relatively constant.
In short, Texas does not have enough existing water supplies today to
meet the demand for water during times of drought. In the event of
severe drought conditions, the state would face an immediate need for
additional water supplies of 3.6 million acre-feet per year with 86
percent of that need in irrigation and about 9 percent associated
directly with municipal water users. Total needs are projected to
increase by 130 percent between 2010 and 2060 to 8.3 million acre-
feet per year. In 2060, irrigation represents 45 percent of the total
needs and municipal users account for 41 percent of needs.
Southlake
AVERAGE ANNUAL PRECIPITATION
FOR 1981 TO 2010 (INCHES)
(SOURCE DATA FROM TWDB, 2005 AND PRISM CLIMATE GROUP, 2011)
Droughts in Texas
Droughts are periods of less than average precipitation over a period of
time. The Palmer Drought Severity Index is often used to quantify long-
term drought conditions and is commonly used by the U.S. Department
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 4
of Agriculture to help make policy decisions such as when to grant
emergency drought assistance. The severity of drought depends upon
several factors, though duration and intensity are the two primary
components. The drought of record during the 1950s ranks the worst
on record in terms of both duration and intensity. However, it should
be noted that drought rankings can be misleading since a single year of
above average rainfall can interrupt a prolonged drought, reducing its
ranking. Nonetheless, on a statewide basis, the drought of the 1950s
still remains the most severe drought the state has ever experienced
based on recorded measurements of precipitation. Other significant
droughts in Texas occurred in the late 1800s and the 1910s, 1930s, and
1960s.
LAKE GRAPEVINE DURING DROUGHT CONDITIONS
In the past decade, North Texas has experienced two major episodes of
drought. The first started in the summer of 2005 and brought the most
severe drought conditions Southlake has experienced during this
period. Spring rains in early 2007 brought relief to the region. Starting
in October, 2010 many parts of Texas, including North Texas, started to
experience drought conditions that brought one of the hottest
summers on record and little precipitation.
During the drought of 2005-2006, the Tarrant Regional Water District
(TRWD) along with its primary customers, including the City of Fort
Worth from whom Southlake purchases its water, began revising their
drought plans to align and coordinate our response to reflect a more
regional approach. TRWD also revised its drought triggers to be more
proactive and meaningful – so that the region could stretch water
supplies before critical low points in lake elevation.
August 2011 was the first time Tarrant Regional Water District
implemented water restrictions because of its drought plan. Stage 1
drought restrictions went into effect after total storage capaCity in our
reservoirs reached 75%. The restrictions were in effect from Aug. 29,
2011 – May 4, 2012. Southlake implemented water restriction based
on local triggers meant to protect the supply system due to high
demands. Water restrictions were also implemented in July of 2008,
2009 and 2011 when the capaCity of the Southlake system was strained
and water levels in three of the elevated storage tanks dropped quickly
for three consecutive days. Since that time, Southlake has completed a
30” water line which improves the transmission of water throughout
the City.
The purpose of this plan will be to promote the efficient use of water to
ensure its availability for essential needs, even during times of limited
rainfall, or drought.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 5
1.2 The Texas State Water Plan
The availability of water has always influenced patterns of settlement,
and communities in Texas originally grew where water was plentiful.
However, as many of the state’s communities have grown, they have
outgrown their water supplies. This has made it more and more
necessary to make efficient use of our local water resources, to work
cooperatively with one another on regional solutions to water
problems, and to move water around the state when necessary to
meet the needs of all our communities.
The purpose of the State Water Plan is to ensure that all of the state’s
communities have adequate supplies of water during times of drought.
The 2012 State Water Plan is Texas’ ninth state water plan and the
third to be developed through the regional water planning process,
initiated by the Texas Legislature in 1997. When the first state water
plan was published in 1961, the population of Texas was less than half
the size it is today, with 9.6 million residents. At the time this plan was
adopted, only a third of Texans lived in urban areas and 79 percent of
the communities in the state obtained their water supplies from
groundwater wells. Now there are over 25 million Texans. Our
population has become older, less rural, and more diverse.
Communities in the state obtain much more of their water supplies
from surface water such as rivers and lakes, but also from new sources
such as reuse and desalination. While a lot has changed since the first
water plan, much remains the same. All or part of the state is often too
wet or too dry, and planning for times of drought is every bit as
relevant today as it was then.
REGIONAL WATER PLANNING AREAS
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 6
The 2012 State Water Plan is based on regional water plans that are
updates to the 2006 regional water plans from the state’s 16 regional
water planning areas. During this planning cycle, the regional water
plans were focused primarily on changed conditions, since new
population data from the U.S. Census Bureau was not available to
significantly update projections of future water demands. The last state
water plan, Water for Texas—2007, included population and water
demand projections based on newly released 2000 U.S. Census data,
and its adoption coincided with the 50th anniversary of TWDB and the
commencement of the 80th Texas Legislative session. It also included
comprehensive summaries of all of the river basins and aquifers in the
state.
According to the Texas Water Development Board, by 2060 the state’s
demand for water is likely to increase by 27 percent compared to its
demand in 2000. The 2012 State Water Plan anticipates $53 billion
worth of projects to avoid water shortages over 50 years. The plan also
aims to have 34% of the new water come from conservation and reuse.
As such, the Southlake plan provides a number of recommendations to
increase water conservation in the City.
The majority of water used in Texas (59 percent in 2003, according to
the state’s 2007 water plan) is supplied by groundwater. Conversely,
Region C of the Texas Water Development Board, which includes
Tarrant County and 15 other North Texas counties, relies on surface
water for more than 80% of its supply. Dependence on surface water is
anticipated to increase.
In Region C, municipal demands, such as residential use, was 1.5 million
acre-feet (4.9 billion gallons) in 2010. The U.S. Census Bureau has
predicted that North Texas will nearly double its population from 2010
to 2060 to 13 million people. By 2060, North Texas’ municipal demand
for water is estimated to increase to 2.9 million acre-feet (9.4 billion
gallons).
To meet growing water needs, Region C anticipates developing an
additional 2.4 million acre-feet by 2060, with a total capital cost of
$21.5 billion if all recommended water management strategies are
implemented.
The City of Fort Worth is
Southlake’s sole water
provider. Fort Worth
Water Utilities, in turn, is a
customer of Tarrant
Regional Water District
(TRWD). TRWD manages
four major reservoirs:
Lake Bridgeport, Eagle
Mountain Lake, Cedar
Creek Reservoir, and
Richland Chambers
Reservoir. Fort Worth also
utilizes two minor regional
lakes.
In addition to new reservoirs and other capital improvements, Region C
of the Texas Water Development Board identifies conservation
strategies to account for approximately 12 percent (290,709 acre-feet)
of the total volume of water. The recommended strategies for all
municipal users include
➢ Education
➢ Pricing structure,
➢ Water waste prohibitions,
➢ Water system audits, and
➢ Plumbing code changes
These strategies were included with the City’s own recommendations
in this Water Conservation Master Plan.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 7
1.3 Purpose and Relationship to the Comprehensive Plan
Water conservation has increasingly been an important element of
Southlake’s long range goals due to the rapid growth of the region,
greater demand for water resources and uncertain environmental
drought conditions that all affect the City and its residents. During the
development of the Water System Master Plan in 2012, the consultants
provided the City with important information on Water Demand
Projections, Water Supply, Storage, Pump Stations, Distribution System
and Recommended System Improvements. One of these
recommendations that resulted from the analysis was for the City to
The Water Conservation Master Plan is a component of the Southlake
2030 Plan, the City’s comprehensive plan. The comprehensive plan is a
reflection of the community’s values and serves as a blueprint for
Southlake’s future. More specifically, the comprehensive plan
establishes a framework to coordinate the City’s activities and to guide
the City’s decision-making for the next 20 years. As such, the
comprehensive plan and its components are updated on a regular
basis. In this particular case, the updating of other components of the
comprehensive plan has resulted in the development of a new
component, the Water Conservation Master Plan.
consider the development of a more comprehensive water
conservation plan in order to help ensure future water needs of the
City are met.
In addition, during the
development of the Southlake
2030’s Vision, Goals & Objectives an
area the City wanted to pursue is
sustainability. Objective 7.2 in the
Vision, Goals & Objectives indicates
the City should promote public
awareness and education on such
sustainability issues such as public
health, energy and water
conservation and overall
environmental stewardship.
Community
Facilities
Parks,
Recreation &
Open Space
Mobility
Land Use
Water,
Waste
Water,
Storm
Water
Economic
Development
Water
Conservation
Urban
Design
Public Art
Wayfinding
The intent of this plan is to meet that objective, implement the
recommendation from the Water System Master Plan and to provide
the framework to implement a cost effective and efficient water
conservation program in the City.
1.4 Relationship to Southlake’s Strategic Management System
Strategic planning is an ongoing process where resources, critical
concerns, community priorities and citizen needs are combined to
produce both a plan for the future and a measure for results. More
specifically, Southlake’s Strategic Management System links the City’s
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 8
day-to-day activities to a comprehensive long-term strategy for public
policy and management decisions.
The Strategic Management System identifies Strategic Focus Areas and
Objectives to guide effective and efficient resource allocation and
provides benchmarks to assess performance. The Strategic Focus
Areas and Objectives are driven by the City’s Citizen Survey and are
outlined in the City’s Strategy Map (see exhibit on page 9).
The Strategic Management System guided the development of the
Southlake 2030 Plan Vision, Goals and Objectives (VGO), which define a
desired direction for growth in the City. As such, all recommendations
in the Southlake 2030 Plan are tied to at least one Strategic Focus Area
from the Strategic Management System and at least one Objective
from the adopted Vision, Goals and Objectives. These
recommendations guide the development of the Capital Improvements
Program (a five-year plan for the purchase, construction or
replacement of the City’s physical assets) as well as departmental
business plans. In turn, the Capital Improvements Program and
departmental business plans dictate the City’s day-to-day activities and
ensure the City is working to achieve the community’s goals.
Further, the Southlake 2030 Comprehensive Plan assists the City
Council and Boards and Commissions in decision-making by
establishing a blueprint for the City’s future. For example, the Planning
& Zoning Commission and City Council will use the Water Conservation
Master Plan to evaluate requests related to development to determine
whether or not the goals of this plan have been met and if are they
consistent with the community’s needs and goals. Using the Plan as a
guide helps to secure the community’s vision for long term water
conservation.
Citizen Survey
Strategic Management
System
•Focus Areas
•Corporate Objectives
Southlake 2030 Vision,
Goals, and Objectives
Plan Elements
•Water Conseration Master Plan
City Activities
•Capital Improvements Program
•Departmental Business Plans
•City Council and Board Decisions
Results
[SOUTHLAKE 2030] Water Conservation Master Plan
City of Southlake Strategy Map
The City of Southlake provides municipal services that support the highest quality of life
for our residents and businesses. We do this by delivering outstanding value and
unrivaled quality in everything we do.
Deliver,on.Our Focus Areas
lj] [!] [I]
Safety & Mobility Infrastructure Quality Partnerships & Performance Management
Security Development Volunteerism & Service Delivery
Serve Our CUstomers
highest standards
of safety&
security
C2 Provide travel
convenience within
City & region
C3 Provide attract ive &
un ique spaces for
enjoyment of personal
interests
C4 Attract & keep top-tier
businesses to drive a dynamic &
sustainable economic
environment
C5 Promote opportun ities
for partnershi ps &
volunteer involvement
81Achieve best-
in-class status in
all City disciplines
82 Collaborate with
select partners to
implement serv ice
solutions
83 Enhance resident
quality of life & business
susta i nability through
tour ism
service
8S Improve
performance of
delivery & operational
processes
Provide Financial Stewardship
Fl Adhe re to financ ia l management
principles & budget
F21nvest to provide & maintain
high quality public assets
F3Achieve fiscal wellness
standard s
F4 Establish & maintain
effective i nternal controls
ll Ensure our people
understand the strategy &
how they contribute to it
l2 Enhance leadersh i p
capabili ties to deliver
results
Promote learning & Growth
l3 Att ract, develop &
retain a skilled
workforce
l4 Recognize &
reward h igh
performers
lS Empower informed
decision-ma king at all levels
in the oreanization
[SOUTH LAKE 2030] 9
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 10
1.5 Goals & Objectives
A well-formed Water Conservation Master Plan should not deprive the
community of essential water uses; rather, it should provide a
blueprint for efficient water use and should be tailored to fit the
community’s needs. The benefits of water conservation not only
include those derived from avoided costs, but also other benefits that
may not be as easily enumerated in terms of dollars yet hold significant
importance to the City in terms of value. Some of the benefits of water
conservation include:
➢ Delays the need to develop expensive future water supplies
Costs associated with
developing new water supplies
(or purchasing new water) are
numerous. These can include
capital costs for construction
of reservoirs, pumping
facilities, pipelines, treatment
plants, water storage, and
related facilities; costs of
obtaining water rights and
permits; and operational costs
such as labor, energy, and
chemicals.
➢ Extends the life of existing water supplies and infrastructure
Pressures within the water system will increase in localized areas in
order to meet increasing customer demands. Increased pressures
within an aging infrastructure will mean more leaks from the system.
When water demands are maintained or reduced through
conservation, higher system pressure is avoided.
➢ Reduces demand infrastructure and cost
A water system is sized to meet its customers’ peak demands. When
these peak demands are reduced through water conservation, a
portion of the system’s capaCity is freed-up for other water customers.
This, in effect, increases the base capaCity of the system.
➢ Lowers capital and operating costs of the existing system
The need for expanding the water treatment and distribution system is
delayed or avoided. Operational costs, such as power and chemicals,
are also reduced. Other benefits include the generation of positive
environmental effects, improving customer good will and promoting a
positive image for Southlake.
The following goals & objectives will set up the framework for which
this plan is intended to be built upon:
Educate residents, businesses owners and related industry
professionals and promote public awareness;
Revise & implement the current Water Conservation Plan;
Avoid local implementation of the Drought Contingency Plan
and reduce impact to the water system;
Reduce seasonal peak demands;
Reduce water loss and waste;
Allow continued economic growth and development and
improve the quality of life; and
“Lead by example” by upgrading City facilities with water
efficient fixtures, landscapes, and irrigation systems wherever
possible.
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 11
[SOUTHLAKE 2030] Water Conservation Master Plan
2.0 WATER SYSTEM PROFILE
Historical Development
When the City of Southlake incorporated in 1956 the rural, sparsely
developed community depended on wells as their sole source of water
supply. In 1965 a bond election for water infrastructure passed,
allowing the City to
develop four wells
that provided
enough capaCity to
serve the City until
1985.
In 1985 the City
entered into a
contract with the
City of Fort Worth as
a wholesale water
provider to
System CapaCity and Build-out Planning
An update to the Water System Master Plan was adopted in June, 2012
as part of the development of the Southlake 2030 comprehensive plan.
Major elements of the study guiding the development of the plan
included water demand projection, water supply, storage capaCity,
pumping capabilities, distribution, recommended system
improvements, and system maps which have helped in providing a
utility profile.
One result of the study was findings on future water demand. Based on
population projections developed by the North Texas Council of
Governments total water demand is expected to increase from a peak
demand of 26.9 millions of gallons per day (MGD) in 2012 to a peak day
demand of 34.5 MGD at build out. Study recommendations for the
Water System Master Plan have been built around meeting this
demand.
Along with infrastructure elements in the Water System Master Plan, a
recommendation was made for staff to undertake a the development
AERIAL DURING CONSTRUCTION OF THE NEW FLORENCE
WATER TOWER
Southlake. Based
upon that new supply
source, the City of
of an overall Water Conservation Master Plan. The Water System
Master Plan Committee identified the conservation plan to provide the
following information:
Southlake began to develop a water system in earnest to supply,
distribute, store and pump the treated water from Fort Worth.
By 2006 the City of Southlake had completed a number of projects so
that delivery was a little more than 20 million gallons per day. By 2009
population growth and residential consumption had increased to the
point that demands during the summer months started to exceed 20
million gallons per day (MGD). During that time the City had taken
steps to plan for, budget and construct improvements based on
priorities identified in its Water System Master Plan.
➢ An analysis of the community’s demographics as it
relates to potable water;
➢ Estimate the effectiveness of recent water
conservation and drought contingency measures; and,
➢ Develop a 10-year plan for effective water
conservation measures that could be used to reduce
the consumption of potable water based upon the
City’s specific demographics through the
implementation of water conservation measures
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 12
[SOUTHLAKE 2030] Water Conservation Master Plan
2.1 Description of Water Use
Water consumption by water utilities serving municipal water
customers is driven by a wide variety of domestic, commercial,
industrial and institutional needs. Thus, understanding water use is an
important component of any water conservation program.
Total Consumption and GPCD
4
3.5
3
2.5
2
1.5
1
0.5
0
City of Southlake
Annual Consumption in Billions of Gallons
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
City of Southlake
Gallons Per Person Per Day
AERIAL OF PEARSON PUMP STATION
Total water consumption here is defined by the number of gallons
drawn into Southlake from the City of Fort Worth and measured by a
meter at the pump station on Pearson Road. The average amount of
water taken from the City of Fort Worth from calendar years 2003 to
2012 was 3.06 billion gallons. The maximum amount in that same
period was 3.74 billion gallons in 2011 and the minimum amount was
2.36 billion in 2004.
400
300
200
100
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Water use is normalized for population growth. This normalization of
water use is the most common comparison. Per capita use provides a
way to compare water use regardless of growth and a way to roughly
compare (see inset about GPCD on the next page) across multiple
communities.
Per capita use is found by dividing the total consumption by the
population size. The annual population count was provided by the
North Texas Council of Governments. The following graphs are
expressed in gallons per person per day (GPCD).
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 13
City GPCD
Westover Hills 922
Highland Park 370
Southlake 357
Grapevine 329
Colleyville 289
Trophy Club 276
University Park 254
Plano 242
Coppell 221
Frisco 206
Flower Mound 202
Dallas 198
Keller 176
Fort Worth 155
GP
C
D
20
0
3
20
0
4
20
0
5
1 :
3.
2
20
0
6
20
0
7
20
0
8
20
0
9
20
1
0
20
1
1
1 : 3.
6
20
1
2
The Texas Water Development Board uses the Annual Water Survey of
each water supplier to report water use by municipality. The following
communities’ consumption volumes are from the 2010 report.
TWDB: Cities with high
per capita water use
estimates are sometimes
portrayed as being
extravagant in their
water consumption when
compared to cities with
low per capita use
figures. This is not always
true, as a number of
factors can legitimately
affect estimated per
capita use.
800
700
600
500
400
300
200
100
0
Gallons per Person Per Day
GPCD
Winter Consumption vs. Summer Consumption
Summer Use
Water use increases substantially starting at the growing season each
year. Summer use is a significant factor in total water use and
comparing summer use to winter use gives insight into how much
water is used outdoors. The following graphs show the fluctuations of
demand put on the water system annually.
800
600
400
200
0
Summer
Winter
In Southlake, the winter/summer ratio is 1:3. For comparison to other
cities in Texas, the City of Houston has a summer/winter ratio of 1:1.2,
and the City of Lubbock has a ratio of 1:1.6 (Drop by Drop, 2010).
Residential Water Consumption
Analyzing residential water sales provides insight into water use across
the City. This can drive both targeted approaches for public education
and outreach recommendations and will assist with targeted
programing for neighborhoods. The vast majority of water accounts are
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 14
B il
l
i
o
n
s
residential (94%). The following chart shows the number of water
accounts in 2012.
2012 Residential Commercial Bulk/Hydrant* HOA
Number of Accounts 8,536 325 59 194
Consumption
(in millions of gallons) 2,609 614 9.7 97
Bulk/hydrant meters are typically used for construction and similar purposes.
It is evident from the graph below that residential sales encompass the
vast majority of water sold in Southlake. Residential sales average 86%
of total volume, while commercial and HOA sales are 11% and 3%,
respectively. This can be expected as there are more residential
accounts.
Total Gallons Billed Per Year By Account Type
share. Some of those variations can be visualized through analysis of
neighborhoods. In this study, residential water accounts were divided
by SPIN (Southlake Program for the Involvement of Neighborhoods)
provides boundaries of eleven neighborhoods within the City of
Southlake) and analyzed annually. The accounts included 1” and 2”
residential meters and 1” and 2” irrigation meters dedicated to non-
HOA and non-commercial accounts. The data used was available from
2006 to 2012.
The average annual use per account per SPIN was found by dividing the
total gallons sold in that SPIN by the number of accounts in that SPIN.
More water was consumed per account in northwestern sector and
central sector of the City (SPINS 1 and 5). The least amount per account
was consumed in the northeastern sector (SPINS 2 and 4) and far
southwestern sector of the City (SPIN 11).
3.5
3
2.5
2
1.5
1
0.5
0
2005 2006 2007 2008 2009 2010 2011 2012
Total Gallons Residential Total Gallons HOA Total Gallons Commercial
From the above information, it is evident that residential consumption
is the driving force in terms of use, peak demands and the
development of an infrastructure that meets these demands.
Understanding, first how much water is used in this residential setting
and some of the reasons why, will help shape how conservation
measure recommendations are shaped up.
Residential use can vary for a number of reasons, including lot sizes,
type of development, and many other features that neighborhoods
AVERAGE ANNUAL WATER USE PER SPIN
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 15
A map of the average summer use per account in each SPIN (July
through August) is below. The similarity to annual use indicates, as
expected, that water use per account is highly driven by the amount of
water use in the summer months.
Because water use is viewed as largely irrigation driven, it can be
expected that lots with large acreage will use much more water,
especially during the growing season.
AVERAGE WATER USE PER SPIN DURING THE SUMMER MONTHS (JUNE-AUGUST)
However, do Southlake residents use more water because residents
have more land to irrigate? This is a difficult question to answer
because there are many factors in how much water an individual lot
uses for irrigation purposes. Apples to apples comparisons have not
been fully developed by other water purveyors in the region. The City
should continue to evaluate and study the factors that drive outdoor
uses in Southlake to better focus efforts on education and outreach
programs.
2.2 Managing Water Demand Peaks
One of the biggest challenges a water provider can face is peaks (or
spikes) in demand that strain the capaCity of the system. Managing
these peaks is difficult, even when the water system is well-developed.
Similar to building a highway to manage peak rush-hour traffic, a water
provider must anticipate the peak demand and build a system to
deliver that peak demand.
The City of Southlake is contractually bound to our wholesale water
supplier, the City of Fort Worth, to pay peaking charges and adhere to
drought contingency plans and conservation requirements, such as the
adopted Drought Contingency Plan shown in Appendix B of this plan.
These contract provisions are designed to help manage these water
demand peaks. In extreme cases, failure to do so can result in loss of
pressure in the system requiring customers to boil water before using
it, and/or simply running out of water. These scenarios pose public
health and safety risks, including creating a situation where there is not
adequate fire flow available to extinguish a fire.
In Southlake, these peaks occur during the heat of the summer and are
driven by water use for irrigation. Irrigation uses during the summer
months can account for more than 60% of the total water demand.
In addition to the challenges these peak pose in development and
management of the infrastructure, the peak demand fees paid to the
City of Fort Worth have been a financial burden to the utility. The
average peak demand fee paid over a seven year period was $1.5
million (2006-2012), or 25% of the total annual amount paid to the City
of Fort Worth.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 16
D
r
o
u
g
h
t
C
o
n
d
i
t
i
o
n
Total Annual
Wholesale Cost
Total Peak Charge Peak Chg. as % of
Annual Total
FY 12 $6,204,210 $1,990,438 32%
FY 11 $8,592,146 $1,749,651 20%
FY 10 $6,134,178 $1,460,043 24%
FY 09 $6,059,573 $1,277,074 21%
FY 08 $5,799,188 $1,688,075 29%
FY 07 $4,558,166 $1,385,940 30%
FY 06 $6,484,009 $1,140,546 18%
2.3 Drought and Water Demands in Southlake
Droughts have been recorded as a problem in Texas since Spaniards
explored the area. Even Stephen F. Austin's first colonists were affected
by droughts. In 1822 their initial food crop of corn died from lack of
moisture. Each decade since then has been marked by at least one
period of severe drought. Associated with dry times are grasshopper
plagues, brush and grass fires, sand and dust storms, crop failures and
depression, livestock deaths, disease resulting from insufficient and
impure drinking water, and migrations of citizens from parched
territory. There has been at least one serious drought in some part of
the state every decade of the twentieth century. The most catastrophic
one affected every part of the state in the first two thirds of the
1950s. (Texas State Historical Association)
In recent history, the City of Southlake has experienced a range of
conditions from very wet (2007) to exceptional drought (2006).
Records from the US Drought Monitor of historical local conditions
were graphed on a timeline. Super-imposing per capita water use on
drought conditions, it is evident drought is another major driving factor
in overall water consumption.
The summer of 2011 illustrated the difficulty of meeting demand
during adverse weather conditions. The figure shown below is a
cumulative annual rainfall comparison which demonstrates that 2011
rainfall totals were less than in the 1950s Texas drought, one of the
worst droughts in the State’s history.
Additionally, the National Weather Service reported in September 2011
that Texas temperatures during the months of June – August 2011
were the hottest three months ever recorded during the history of the
United States, breaking the record that had stood since the Dust Bowl
storms in 1932. The average temperature in Texas during this period,
including overnight lows and scorching daytime highs, was 86.8
degrees, more than a degree hotter than the 77 year old record of 85.2
degrees.
Timeline of Water Use and Drought
800 6
700 5
600
500 4
400 3
300 2
200
100 1
0 0
Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Jan-11 Jan-12
GPCD Drought Status
0 = no drought, 1 = abnormally dry, 2 = moderate drought, 3 = severe drought, 4 = extreme
drought, 5 = exceptional drought
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 17
In 2011, summer average consumption on a per capita basis was 30%
higher than in 2003. Southlake water customers consumed 2.5 times
more during the summer of 2011 than during the remaining winter
months. This demand, created by drought conditions and extreme
heat, tested the City’s system capabilities. The exhibit below illustrates
Southlake’s water consumption trends (per capita winter, per capita
summer and per capita annual average) for the period of 2003-2011.
Further complicating the situation, under directive of the Water
Conservation Plan, outdoor watering was only permitted between
10:00 am and 6:00 pm. This schedule compressed watering that had
previously been allowed throughout the day into a 16-hour period,
creating large consumption spikes at certain hours of the day in
Southlake. Summer 2011 illustrated the importance of having a plan in
place to 1) proactively promote conservation and 2) restrict water use
for irrigation when necessitated by extreme weather conditions and
excessive demands.
“2011 was special — the driest year Texas has seen since modern
recordkeeping began in 1895. Rains in October and beyond brought some
relief to parts of the state, but the drought’s toll for 2011 still runs into
billions in damage. And it may well continue into 2012 — or longer.
In Texas, reliable water resources have always been the lifeblood of our
economy and an entire way of life. And in today’s fast -growing state, those
resources are being tested as never before.”-Special Report to Texas
Legislature, the Impact of the 2011 Drought and Beyond
Southlake Water Consumption Trends
To manage water demand in peak periods, the City of Southlake has
enacted a Water Conservation Ordinance No. 895-B and a Drought
Contingency Ordinance No. 662-D. These ordinances specify how water
may be used when demand creates conditions that can compromise
the system. The ordinances contain certain predetermined triggers
(such as low elevated tank levels for consecutive days) that define the
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 18
type of restrictions that may be enacted. These elevated tank trigger
levels were chosen based upon fire flow requirements needed should a
large fire emergency break out in the City. Both of these ordinances can
be found under Appendix A and Appendix B of this plan.
The City of Southlake implemented Stage I restrictions during the
summers of 2008, 2009, and 2011. The extreme conditions of 2011
caused the City to expand its water conservation public
education/communication program, including the use of a program
focused on top water users. This program, called WISE Guys, was
designed to provide property owners a comprehensive evaluation of
their irrigation systems. The City provides a rebate of up to $200 for
any repairs, changes or upgrades resulting from the evaluation. In
addition, the City enforced water restrictions. Voluntary compliance
was encouraged, but citations were also issued when compliance was
not achieved and conditions warranted. As a part of this master plan, it
is the City’s goal to avoid when possible the implementation of the
Drought Contingency ordinance and the possible enforcement
measures involved.
2.4 Future Supply Challenges
The total supply available for the City of Southlake at build out is
estimated at 36 MGD. The future build-out peak day demand is
projected to be 34.5 MGD. While it appears that supply capaCity will
exceed ultimate demand, the City should also evaluate additional
means to reduce consumption as well as investigating other supply
improvements. While the system will be built at a certain capaCity,
within an environment that is consistently seeing more frequent
droughts, it is difficult to know whether or not sufficient water will be
available to meet those peak drought demands. Additional study could
include increasing supply (from the City of Fort Worth or other
providers such as the Trinity River Authority or Upper Trinity Regional
Water District) but Southlake and the region are still facing the same
issue of supply.
2.5 Other Considerations
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 19
Age of Existing Structures
In 1992, the Environmental Protection Agency (EPA) established
standards for water conservation to be applied and implemented on
water fixtures such as toilets, shower heads, faucets and other uses to
help save an estimated 6.5 billion gallons of water per day. The map on
the previous page shows the decade in which the building or structure
on site was constructed. The majority of the development that has
occurred in Southlake has been after the implementation of the EPA
Act of 1992, so it can be safe to assume that the majority of the water
fixtures within these buildings and structures meet efficiency
standards.
Groundwater Availability
Historically, groundwater has been an important source of water for
Southlake residents and it continues to play an important role in total
water availability for residents, businesses and property owners. A
review of state and county records from a previous study (Kleinfelder,
2010) showed that in 2010 there were 588 wells within the City limits
of Southlake. More than 65% of the well applications had indicated
irrigation as the proposed use of water.
Wells within the City of Southlake utilize aquifers from two geologic
formations – the Woodbine Formation and the Trinity Group. Within
the Trinity Group, the Paluxy Aquifer and the Twin Mountains Aquifer
are the water bearing units utilized.
The Woodbine aquifer is considered a minor aquifer of Texas. The
formation and recharge zone crops out or reaches the surface on the
eastern portions of Tarrant County, including Southlake, and continues
to dip eastward. The primary source of groundwater recharge for the
formation is from rainfall events in the outcrop areas and stored in
saturated sand beds. Water quality within the aquifer varies
significantly in lower potions of
Southlake
MINOR AQUIFERS OF TEXAS
the aquifer. The upper portions, including Southlake, yield water with
highly elevated concentrations of iron that limits use.
According to water well database reports, groundwater elevations
within the Woodbine aquifer range from 12 to 40 feet below ground
surface in Southlake. Utilization is dominated by irrigation (75%),
followed by providing domestic supply (24%).
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 20
Southlake
In 2007 the 80th Texas Legislature created the Northern Trinity
Groundwater District (NTGCD) “in order to conserve, preserve, protect,
and prevent the waste of groundwater resources in Tarrant County”.
By 2010 the NTGCD had adopted rules governing certain wells in
Tarrant County. It is unclear at this time how these rules currently
affect wells in the City of Southlake and the future of groundwater use.
The relationship between self-reliant well water users and municipally
provided water arises when wells dry up, pumps fail, or for other
reasons property owners choose to move to using municipal water.
This potential new demand is unaccounted for at this time. Thus, it is
important that the City understand the status of groundwater
availability and water well activity within the City’s jurisdiction.
MAJOR AQUIFERS OF TEXAS
The Paluxy Aquifer is the upper member of the Trinity Group, a major
aquifer, cropping out to the west of Southlake. The Paluxy Formation
and aquifer dips to the southeast where, beneath Southlake, it occurs
approximately 400 to 600 feet below ground surface. This aquifer
yields small to moderate amounts of fresh to slightly saline water. This
aquifer is mostly used for domestic supply (49%), and irrigation
purposes (31%).
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 21
3.0 CURRENT MEASURES
3.1 Public Education Measures
Staff has made available information about water conservation over
the last several years, including direct mail, information on the City’s
website, articles in mysouthlakenews.com, and brochures distributed
at different municipal locations and at events. In addition, staff has
distributed materials that encourage water conservation, including
moisture meters (for the soil), rain gauges, spray nozzles, shower
timers and other give-aways. In 2009 municipal staff worked with the
Bob Jones Nature Center to create a display at the nature center
showing the annual average water use and tips on reducing water. The
City has used its website and mysouthlakenews.com to provide updates
on the current conditions, information about water conservation
measures for the home, for the landscape, and similar information.
For the last several years, prior to the adoption of this plan, the City has
utilized a speakers-bureau through the Texas Agrilife Extension Service
and similar resources to bring presentations to Southlake on topics
regarding water conservation, including native and adaptive plant
selection, irrigation 101, and rainwater harvesting.
In addition, staff has presented information regarding water
conservation in many different avenues, including at City Council
regarding water use and water conservation measures, Carroll High
School classes regarding water use and other water topics, the Business
Council, and the Senior Citizens Center.
3.2 Ordinances
Water Conservation Plan
This plan was adopted by ordinance as a required element of the Texas
Commission on Environmental Quality. This ordinance, adopted in 2008
created a five-year plan to address water conservation. As required by
the state, the City will update this plan every five years. This element
of the 2030 plan will guide future documents.
Drought Contingency Plan
As with the Water Conservation Plan adopted in 2008, the Texas
Commission on Environmental Quality requires each City adopt a
drought contingency plan. This plan is guided by the City’s contractual
obligations to the City of Fort Worth.
Landscape Ordinance
In December, 2011 the City revised the landscape ordinance with
specific requirement to address water waste through the installation of
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 22
pressure regulating devices, particularly spray heads and rotor bodies
or order to reduce system misting and aid in proper water placement.
The ordinance also encourages water conserving methods in
installations when possible.
3.3 Programs
W.I.S.E. Guys Program
The Public Works Department launched a program in March, 2011
targeting residential irrigation use. This program, called W.I.S.E. (Water
Irrigation System Evaluation) Guys, has been advertised to residents as
a means to better understand the homeowner’s irrigation system and
to make improvements or repairs as needed. The program has received
high regard among participants, where 100% of those who responded
by survey said he/she would recommend the program to a friend.
There have been over 400 participants as of March, 2013.
Irrigation Review and Inspection
With the adoption of state regulations in 2009, irrigation plan review
and installation inspection requirements increased for the City. In order
to receive a final irrigation inspection, the licensed irrigator must
submit as-built plans, a signed homeowner checklist, and other
documentation. The irrigation final consists of an inspection of major
components of the system. Commercial systems require a walk-
through inspection.
Plumbing Review and Inspection
The most current plumbing code, the International Plumbing Code of
2009, encourages water conservation through review of the design of
the distribution system for maximum flow and through the use of rain
water harvesting and grey water recycling.
Leak Detection and Elimination
The age of a system lends to
leaks and breaks as older
equipment wears and
degrades. The City of
Southlake’s infrastructure is
relatively new, thus major
leaks and breakages are
uncommon. However, small
leaks and breaks do arise. The
Public Works Department
continually seeks out leaks and
other problems associated
with water loss and make
repairs to the system.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 23
Meter and Transponder Replacement Program
Meter and transponder accuracy is an important component of any
water conservation program as accuracy is important to the
consumer’s understands of consumption. Meter and transponder
accuracy decreases over time, thus the Public Works Department has
begun a 10 year meter replacement program. Each residential meter
and transponder will be replaced every 10 years. By the end of 2013,
Public Works will have completed 60% of meters and transponders in 5
years of the program.
Municipal Irrigation Use
The Community Services Department has been tasked with ensuring all
municipally-owned irrigation systems run with as much efficiency as
possible. In recent years Community Services has focused on
improvements through technology and training. Several staff members
have earned irrigation licensing through the State of Texas. In addition,
Community Services has acquired technology such as
evapotranspiration equipment; this equipment assists trained irrigation
specialists to determine water needs for a variety of landscapes across
the City.
Irrigation Recommendations
Recently, staff launched a lawn irrigation recommendation program.
Utilizing information from the Community Services Department’s
evapotranspiration measurements and guidelines from the Texas
Agricultural Extension Service, staff posts recommendations on how
much water to apply to the lawn for optimal growth. Small changes
such as these utilize best available technology to help drive change.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 24
4.0 PROCESS AND IMPLEMENTATION
As mentioned in Section 1.5, the goals and objectives, this plan is not
intended to deprive use of water to the community but rather establish
the blueprint for which more efficient use tailored to the community
would be the focus. There were several criteria used in evaluating the
recommendations developed for this master plan. With the goals and
objectives of the plan in mind, the City developed four areas that each
recommendation should be evaluated against when determining its
priority. The four areas consisted of:
➢ Cost Effectiveness
➢ Estimated Water Savings
➢ Relevance to Local Conditions; and
➢ Challenges to Implementation
These four areas were assessed on each recommendation, and if they
were considered high or strong in an area this assisted the
recommendation with being ranked on higher priority, or Tier, as
discussed in Section 3.5 of this master plan. These next few sections
will be focused on discussing the four areas evaluated.
4.1 Cost effectiveness
The first area that was looked into when the City identified water
conservation recommendations in this master plan was the cost
effectiveness of the recommendation, policy or program. While it
should be noted that all the programs, policies and improvements
being recommended in this plan will cost the City money to some level,
it should not be forgotten that the purpose of this plan is to ultimately
create a sustainable community in terms of its water consumption. The
financial impacts should be minimal when compared to the cost of
continuing the status quo of water consumption in the City. The
benefits are intended to be
long term and not necessarily
regained immediately by the
consumer directly, but rather
to maintain the quality of life
for the consumer with
minimal changes for the day-
to-day life. This should
continue making the City an
attractive place for residents
as well as for businesses.
Due to the nature of this
master plan being oriented
towards having a significant
education & outreach component, the cost effectiveness of such
recommendations can be assumed to be high. Many of the other
recommendations within the municipal and residential/commercial
categories should be studied for cost effectiveness prior to
implementation.
4.2 Estimated water savings
The next area evaluated was the estimated water savings of each
recommendation. This area, just as cost effectiveness, can be difficult
to assess due to some of the same reasons. The consumers or target
audience the recommendation, policy or program is directed towards
may have different results from community to community so some
assumptions are difficult to make and therefore may require further
analysis.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 25
The same type of rationale was applied to
this area when it was evaluated against
the recommendations. For example, the
estimated water savings of the City
implementing a sustainable landscape
ordinance, that for instance may require
75% of the landscape area of any
development to have drought tolerant
plantings, will likely be greater than
auditing the City’s water system for water
loss. The estimated water savings is likely
greater creating an ordinance that
implements the use of drought tolerant plantings requiring less water
rather than performing a water system audit that doesn’t modify any
behaviors immediately.
4.3 Relevance to Local Conditions
The next issue considered was the relevance to Southlake’s local
conditions. As mentioned in Section 2, a vast majority of the
development in Southlake is newer and already has many more current
water efficient fixtures such as toilets, showerheads and faucets. So
when the recommendations were considered it was important to take
into account the type of consumer in the City.
Southlake can be considered a bedroom community where most of its
property owners and residents are both commuting and working in
another City, attending school, or taking care of the day to day errands
of a typical household. These types of users can be considered
discretionary water users. When recommendations were evaluated
against this area it was important to note that the consumption was
not by large factories or commercial processes that require large
amounts of water but rather by individual discretionary water user.
Thus, the more the recommendation was targeted towards the
discretionary user and reducing their overall consumption, the greater
or higher priority was placed on the recommendation. It was also
critical to take into account the prevalence of larger lot sizes and
abundance of swimming pools that the typical consumer has in the
City.
4.4 Challenges to Implementation
The last area evaluated when considering the recommendations of this
plan were the challenges of implementing the recommendation. This
particular area proved to be complex because the cost effectiveness,
estimated water savings and relevance to local conditions can be
considered challenges in themselves. The challenges were viewed more
in the sense of, if the recommendation were to begin implementation
today, what would those obstacles be.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 26
Some of the obstacles considered in implementing the
recommendations in the plan were:
Public perception
Staff time needed to implement recommendation
Availability of funding
Ability to track and monitor effectiveness
All of these areas were considered and evaluated against every
recommendation to better determine the priority in which the
recommendations should be considered.
4.5 Plan Implementation
A plan is only as good as its implementation. This plan will establish a
foundation for future water conservation master plans to be built
upon.
There are several recommendations of programs, policies and
improvements that have been adopted as a part o f this plan. And while
some of those programs, policies and improvements can be more
appealing and desirable to implement immediately, when placed in a
priority order and weighed against available funding, may not be
implemented in the near future.
For each specific recommendation, a relative priority (Tier) has been
established to assist with the priority of implementation of the
recommendation. During the development of this master plan, each
recommendation was evaluated against four areas, as outlined in the
previous sections, which assisted in determining the priority of the
particular program, policy or improvement. The results of this
evaluation allowed City staff to assign the recommendations based on
priority Tiers. The Tiers are divided into three different Tier categories
based on timeframe to implement:
➢ Tier 1: 1 to 3 Years
➢ Tier 2: 4 to 7 Years
➢ Tier 3: 8 Years and beyond
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 27
There are some policies, programs and improvements within this
master plan that will require a more technical approach, generally
listed as Tier 2 and Tier 3 categories. In some of these situations an
evaluation, such as a cost-benefit analysis, will be necessary in order to
obtain a better idea of when that policy, program or improvement will
be able to be completely funded and implemented. The analysis will
need to contain the expected balance of benefits and costs, including
an account of foregone alternatives. This will help predict whether the
benefits of a policy, program or improvement outweigh its costs, and
by how much relative to other alternatives, including not implementing
the recommendation. These more complex recommendations require
more time and more analysis and therefore have been listed as a Tier 2
or Tier 3 recommendation.
The recommendations requiring capital costs will of course be fully
dependent on the outcome of the Capital Improvements Program (CIP)
process. The CIP planning process begins and ends with projects
recommended by this and all other master plans. Annually, as part of
the City’s budget process, City staff analyzes the adopted master plan
and develops a comprehensive list of projects and corresponding
details along with preliminary cost estimates for each project to be
included in the proposed CIP. The proposed CIP is submitted to the CIP
Technical Committee (department directors), who rank them based on
set criteria. A priority list is then developed and forwarded to the City
Manager for evaluation and approval. The priority tiers that were
developed during this master plan will help guide future members of
the City’s boards and City Council when making decisions related to the
CIP. While these tiers have provided the order of implementation and
priority of which the water conservation recommendations were
considered, it should be noted that all recommendations are subject to
available funding during the given budget year and will be placed on
the Capital Improvements Program (CIP).
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 28
5.0 WATER CONSERVATION
MEASURES
The summer of 2011 was one of the hottest and driest in a single year
period in the state of Texas. This has since been serving as a reminder
that it is crucial for Southlake to carefully plan for its water resources,
and provide an adequate and sustainable water supply to serve the
needs of its water users. To meet this goal, reduced water consumption
through implementation of conservation policies and programs will be
extremely important. This master plan will serve as the first
comprehensive approach in the City to address an issue that not only
affects the City’s residents, but the region and state as well.
Water conservation represents a cost-effective and environmentally
sound way to reduce current and future water demand and energy
usage. Homeowners and business owners can take many actions to
reduce water use, such as using water conserving fixtures and
appliances, fixing leaks, planting drought-tolerant landscaping, and
avoiding unnecessary water use.
Water conservation is an integral part of sustainably ensuring the long-
term reliability of the water supply. The recommendations that have
been adopted as a part of this plan will result in the cooperation and
partnerships with the Tarrant Regional Water District, City of Fort
Worth and other water conservation agencies in educating water
consumers on the importance of water conservation in order to extend
available water supplies to future generations.
Additional benefits of water conservation include a reduction in energy
consumption, compensation for system deficiencies, and reduction in
wastewater flows, with associated reduction of impacts on planned
population growth.
The next few sections in this plan will describe in greater detail the
recommendations that resulted from the evaluation of Southlake’s
current utility profile, future water demands and the criteria
established in Section 4.0 of this plan. The recommendations have also
been broken down by category in which they are more directly applied
to.
5.1 Education & Outreach Programs
In the last few decades there has been a substantial increase in
education and awareness programs across the country in the form of
televised commercials, radio announcements, websites and other
promotional material aimed at informing the public about water usage
and its limited availability. Education and outreach is also the most cost
effective measure in water conservation that should not be ignored but
rather capitalized on, especially in today’s rapid information age.
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Educating at an early age
has many advantages.
Promoting behavior
changes in schools leads
to influence in the home
and lasting impressions
on the next generation.
This is important not
only for Southlake as a
community but for any
community the child may
live in the future because
water quantity can be an issue anywhere. There are school programs
that exist that can be adapted to Southlake and implemented that
include partnerships with the regional water provider. Where feasible,
field trips and interactive presentations could be incorporated into the
program in order to get a firsthand view of the effects of water
consumption. The key to success is implementing a program in
partnership with local school districts that excite the students to take
immediate action in conserving water, while educating them in the
proper water conservation practices throughout their lives.
Developing a strategy for providing water conservation information to
the general public is also an effective means of both promoting specific
water conservation programs and practices and educating the public
about the importance of using water efficiently. A program should be
tailored to the community and the audience it is being delivered to. In
Southlake, a focus on the residential water customer should be one of
the target audiences due to residential nature of the community.
Developing an outreach program to residents, business owners,
property managers, HOA's and others whose decisions may influence
water use at a residential or commercial property can help to raise
awareness about water conserving techniques and technologies and
encourage the decision makers to choose best practices.
In addition to the residential and commercial customer, developing an
outreach program to licensed irrigators, general contractors and
landscapers will also be extremely important in Southlake. This group
of people has been identified as highly influential on water use in
Southlake. There are many irrigation companies, contractors and
landscapers working in different capacities (installation and/or
maintenance at residential and/or commercial properties) across the
City using a wide variety of techniques and designs. The City could
ensure that all these businesses have knowledge of the latest water
conserving technology and be encouraged to include these
technologies when selling to the customer. The goal would be to
encourage best practices on installation, repairs and retrofits of these
landscapes. The City would encourage irrigators to be aware of and
promote water saving technology when possible to customers who
would benefit from these products.
With the development of this plan it will also be important to continue
to seek ways to partner with other agencies, such as the Texas Water
Development Board, the Tarrant Regional Water District, Fort Worth
Water Utilities, and other municipalities in order to ensure that
information is being delivered to the consumers in a variety of effective
ways. The table on the next page lists the recommendations relating to
education and outreach.
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EDUCATION / OUTREACH RECOMMENDATIONS
No.
Recommendation / Policy
Implementation Metric
Strategic Link Vision, Goals &
Objectives Tie
Department
Responsible
Priority
Tier
WC-1
Develop and implement a
School/Youth education program
promoting water conservatio n.
Develop and implement a program
focused on educating the City’s youth
in partnership with local school
districts, private schools and other
youth oriented organizations.
Partnerships &
Volunteerism,
C5
7.2, 9.1
CMO, PW, CS
1
WC-2
Develop and implement a Residential
Consumer Education Program on
water conservation.
Develop a strategy and implement a
program to provide water
conservation information to the
public through various means such as
websites and media.
Infrastructure,
B4
7.2, 9.3
CMO, PW, CS
1
WC-3
Develop an outreach program to
licensed irrigators and construction
trades.
Develop an outreach program for
water conservation that includes
training opportunities targeted for
the City’s licensed irrigators,
landscapers, plumbers, pool builders
and contractors.
Infrastructure,
B4
7.2, 9.3
PW, PDS
1
WC-4
Develop a Business and Property
Owner/Manager Relations Program.
Develop a program that promotes
best practices information and
training opportunities to property
managers and business owners.
Partnerships &
Volunteerism,
C5
1.13, 7.2, 9.3
PW, PDS
1
WC-5
Continue to seek out partnerships
with other agencies that help
promote water conservation.
Partner with other agencies such as
TWDB, TRWD, Fort Worth Water
Utilities to jointly promote water
conservation.
Partnerships &
Volunteerism,
B2, C5
7.2, 9.1, 9.3
PW, PDS
1
WC-6
Develop a Landscape Guide fo r the
general public and landscape
professionals.
Create a landscape guide with
assistance from the City’s Lan dscape
Administrator and other best
management practices in use today.
Infrastructure,
B4, B5
1.1, 1.4, 7.2
PDS
1
CMO: City Managers Office
CS: Community Services Department
FIN: Finance Department
PDS: Planning & Development Services Department
PW: Public Works Department
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5.2 Municipal Programs & Policies
Another critical component of this master plan is to demonstrate the
City’s commitment to lead the way to a more sustainable future in its
water consumption practices. This plan establishes many policies,
programs and improvements dedicated to the general public and its
residents but it is just as important for the City to also take
responsibility for its water consumption and hold itself to a high
standard.
This category of recommendations consists of a variety of methods in
which the City can help in reducing its overall water consumption
within municipal operations and also the City at large.
One current activity that is being recommended to continue is the
water meter replacement program. Over time aging municipal
equipment customer water meters lose accuracy, contributing to
"water loss" and revenue loss. In addition to reducing water loss and
revenue the utility can replace older technology with meters offering
improved measurements.
Another program the City is recommending to continue is the semi-
automated irrigation weekly recommendations. Seasonal weather
changes and local rainfall greatly affect a lawn’s watering requirement.
Because of frequent changes to environmental conditions, setting a
controller to irrigate on a set schedule is not effective for conserving
water as the sprinkler frequently wastes water. For those who have not
adopted newer technology that adjusts for weather, the City offers the
homeowner a schedule as a guide to watering needs on almost a
weekly basis and is available through the City’s website.
In addition to recommended
ongoing programs there must
also be policies and
improvements implemented to
further demonstrate the City’s
commitment and leadership in
water conservation initiatives.
One area that can be addressed
throughout the City’s older
facilities is the replacement of
old water fixtures to more
efficient fixtures. Implementing
the replacement of older building
water fixtures such as toilets, urinals, lavatory faucets, irrigation,
cooling towers and water brooms with higher efficiency water fixtures
will help reduce the water consumption in these buildings that are
consistently occupied. Also, performing water audits at existing park
facilities on the existing landscape irrigation systems and installing high
efficiency upgrades would help reduce consumption.
These recommendations discussed, in addition to several others listed
on the next couple of pages, will help the City in leading the way for the
community to protect this vital asset.
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MUNICIPAL RECOMMENDATIONS
No.
Recommendation / Policy
Implementation Metric
Strategic Link Vision, Goals &
Objectives Tie
Department
Responsible
Priority
Tier
WC-7
Conduct a water rate study on a
frequent schedule.
Conduct a rate study on conservation
pricing every 3 to 5 years.
Performance
Management &
Service Delivery,
F2
2.3
FIN
1
WC-8
Evaluate the need to employ a Full-Time
Conservation Coordinator.
Evaluate the employment of a Water
Conservation Coordinator within 1 to 3
years of adoption this plan to
coordinate the programs and projects
within the plan. This could include the
reassigning of current personnel to
this position.
Performance
Management &
Service Delivery,
B1, B4
7.2
PW
1
WC-9
Continue the Customer Meter and
Transponder Replacement Program
Continue to fund the program. Review
the program a minimum of every 10
years for improvements.
Performance
Management &
Service Delivery,
B4
10.1, 10.6
PW
1
WC-10
Continue to audit the water system
annually
Audit the municipal water system for
water loss and implement needed
change.
Performance
Management &
Service Delivery,
Infrastructure, B5
10.1, 10.6
FIN
1
WC-11
Continue the development of a semi-
automated program for providing
irrigation recommendations to water
consumers.
Continue to evolve this current
program that is updated on the City’s
website while also finding new ways to
inform the public of irrigation
recommendations based on current
weather conditions.
Performance
Management &
Service Delivery,
Infrastructure
7.2
PW
1
WC-12
Research and evaluate the existing
aquifers/water tables in the City for the
purpose of identifying recharge zones.
Consider contracting a
Hydrologist/Geologist to assist in
identifying the existing aquifers/water
tables in the City in order to locate any
recharge zones within the City.
Performance
Management &
Service Delivery
7.4
PDS, PW
2
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MUNICIPAL RECOMMENDATIONS
No.
Recommendation / Policy
Implementation Metric
Strategic Link Vision, Goals &
Objectives Tie
Department
Responsible
Priority
Tier
WC-13
Develop an improved method of
locating and maintaining an inventory of
existing water wells in order t o monitor
aquifer/water table activity.
Keep a constantly updated database of
operating water wells for tracking
purposes.
Performance
Management &
Service Delivery
7.4
PDS, PW
2
WC-14
Periodically review any releva nt
ordinances about water use for updates
in the City.
Review ordinances a minimum of once
per five years including but not limited
to the state required water
conservation plan and drought
contingency plan.
Performance
Management &
Service Delivery,
B5
7.4
PW
2
WC-15
Consider updating the municipal
irrigation permitting and insp ection
process.
Review current process and
implement changes that focus on
improving processes that drives water
conservation.
Performance
Management &
Service Delivery,
B4, B5
1.11
PDS
2
WC-16
Develop a Municipal Water
Conservation Policy.
Develop a water conservation policy
and consider including it under the
Sustainability Master Plan which
addresses conservation policies for the
City to adopt for City owned parks and
facilities.
Performance
Management &
Service Delivery,
B1, B4, B5
8.1, 8.3, 10.6
PDS, PW
1
WC-17
Consider the utilization of fixed network
technology to provide customers real-
time usage data
Implement a fixed network throughout
the City.
Performance
Management &
Service Delivery,
B6
8.4, 10.1
PW
3
WC-18
Consider the installation of remote
controlled meters.
Evaluate the need and implement if
necessary the installation of remote
controlled meters.
Performance
Management &
Service Delivery,
B4
8.4, 10.1
PW
3
CS: Community Services Department
FIN: Finance Department
PDS: Planning & Development Services Department
PW: Public Works Department
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5.3 Residential & Commercial Programs & Policies
The last category within this plan for recommendations is specifically
oriented towards Southlake’s discretionary users, the residential and
commercial consumers. Some of the recommendation topics consist of
rain water harvesting, audit and retrofit rebate program, development
credits and landscape ordinance updates.
One area of particular interest when this plan was developed was the
impacts on the water system during peak hours in the summer and in
the winter along with the differences between those seasonal peaks.
New development that is constructed in the City will inevitably place
further strain on that system. So understanding the demands placed on
the community's water infrastructure will increasingly become an
important aspect of assessing the overall impact of new development.
Development generates a demand for water and it may generate
enough demand to compel the community to invest more capital into
its water infrastructure system or seek new water sources. A water
consumption analyses
can be an important
tool to help fore-see
demands on the water
system and to mitigate
any negative impacts
that may occur,
especially during those
peak times of usage.
Another topic area that was explored was irrigation systems on both
commercial and residential property. Installed irrigation systems
become less effective at applying water over time. Equipment breaks,
leaks and becomes clogged over time. The typical response is to
increase the amount of water applied to compensate for lack of
efficiency of the irrigation
system. This can end up
being highly inefficient and
waste large amounts of
water. The City, as
mentioned in Section 2,
currently implements a
residential irrigation audit
and replacement program
which gives the property
owner an analysis of the
current condition of their
irrigation system along with
some recommendations to
improve efficiency. This has proved to be a successful program in terms
of users and is something that can also be applied on a larger scale for
commercial properties, pending the availability of funding.
Lastly, landscaping policies on development can be considerably
helpful in reducing the impact of water consumption if water efficient
plant materials are used. Consideration of water conserving plant
material and landscape design should be prioritized in changes to the
current landscaping policies. Effective considerations in other
communities have included limiting turf landscaping, an emphasis on
native and adaptive plants and the use of canopy trees, soil depth,
moisture retention, and an emphasis on conservative irrigation.
These are all just a few examples of some of the recommendations
evaluated for residential and commercial properties and future
development. On the next page is a comprehensive listing of the
recommendations under this category.
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Residential / Commercial Recommendations
No.
Recommendation / Policy
Implementation Metric
Strategic Link Vision, Goals &
Objectives Tie
Department
Responsible
Priority
Tier
WC-19
Continue to fund the Residential
Irrigation evaluation/repair program
(W.I.S.E. Guys).
Continue to seek ways to improve the
current irrigation evaluation p rogram
offered to residents and expand the
program to commercial properties and
home owner association property.
Performance
Management &
Service Delivery,
Infrastructure, B5
7.2, 9.3
PW
1
WC-20
Develop an ordinance to provide for a
water consumption impact analysis for
development project s reachin g a
specific threshold.
Research the thresholds of water
impact and eligible projects to provide a
water consumption analysis.
Quality
Development
1.4, 1.11, 7.3
PDS, PW
1
WC-21
Develop and implement rainwater
harvesting/grey water use policy in
development projects.
Evaluate the use of rainwater harvesting
and grey water use in development
projects aiming to promote water
conservation.
Quality
Development
1.4, 1.11, 7.3
PDS, PW
2
WC-22
Consider the implementation of a
Commercial Irrigation evaluation /
repair program similar to W.I.S.E.
Guys..
Evaluate the benefits of implementing
the program with the funding source
coming from the water rate study.
Performance
Management &
Service Delivery,
Infrastructure, B4
7.2, 9.3
PW
2
WC-23
Consider the development of a water
audit and retrofit program for indoor
water fixtures that provides in centives
for property owners.
Implement an audit and retrofit
program incentivizing retrofits for
eligible u sers specifically for indoor
water fixtures such as toilets, faucets
and showerheads.
Performance
Management &
Service Delivery,
Infrastructure, B4,
C4
7.3
PW
3
WC-24
Explore opportunities to provide
Development Credits for qualifying
development project s that implement
water conservation mea sures.
Evaluate further implementing
development credits in the
Sustainability Master Plan.
Quality
Development, C4
7.3
PDS, PW
3
WC-25
Update the Landscape Ordinance
focusing on implementing water
conservation best practices.
Revise the Landscape Ordinance with
water conservation practices in mind.
Quality
Development,
Infrastructure, B4
7.3, 7.5
PDS
3
CS: Community Services Department
FIN: Finance Department
PDS: Planning & Development Services Department
PW: Public Works Department
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APPENDIX A
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APPENDIX B
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[SOUTHLAKE 2030] Water Conservation Master Plan
APPENDIX C
ORDINANCE NO. 960: SOUTHLAKE 2030 VISION, GOALS & OBJECTIVES
Vision, Goals & Objectives
Adopted by City Council on November 17, 2009
Ordinance No. 960
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SOUTHLAKE 2030 VISION STATEMENT
Southlake will continue to enhance its status as a desirable, attractive, safe, healthy and fiscally -sound community with quality neighborhoods,
while maintaining a high standard of living, learning, shopping, working, recreation, and open spaces. Southlake will continu e to be a vibrant
community that epitomizes both economic and environmental sustainability.
Goal 1: Quality Development
SOUTHLAKE 2030 GOALS & OBJECTIVES
Promote quality development that is consistent with the Urban Design Plan, well- maintained, attractive, pedestrian-friendly, safe, contributes to an
overall sense of place and meet the needs of a vibrant and diverse community.
Objective 1.1 Encourage the maintenance of existing neighborhoods, features and amenities in order to preserve property values and a
unique sense of place.
Objective 1.2 Create and preserve attractive pedestrian-friendly streets and pathways to encourage transportation alternatives to the
automobile.
Objective 1.3 Encourage appropriately-scaled neighborhood design that compliments existing development patterns while creating unique
places, recognizing that quality residential neighborhoods are the cornerstone of our community.
Objective 1.4 Emphasize creativity and ensure environmental stewardship in the design of all development and public infrastructure,
maximizing the preservation of desirable natural features such as trees, topography, streams, wildlife corridors and habitat.
Objective 1.5 Promote unique community character through a cohesive theme by emphasizing urban design detail and performance
standards for structures, streets, street lighting, landscaping, entry features, wayfinding signs, open spaces, amenities,
pedestrian/automobile orientation and transition to adjacent uses.
Objective 1.6 Consider high-quality single-family residential uses as part of a planned mixed-use development at appropriate transitional
locations.
Objective 1.7 Explore and encourage opportunities for redevelopment when appropriate.
Objective 1.8 Ensure high-quality design and a heightened sensitivity towards the integration of new development with the existing
development and urban design pattern.
Objective 1.9 Strengthen street and landscape design standards to enhance the visual quality along major corridors.
Objective 1.10 Continue to promote a strong working relationship with the Texas Department of Transportation to improve the appearance of
bridges, embankments and entryways into the City.
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Objective 1.11 Ensure that City- and developer-provided infrastructure is functional, aesthetically well-designed, and integrated with the
natural environment.
Objective 1.12 Continue to strengthen the City’s regulations to encourage effective signage that is appropriately designed and scaled to
minimize adverse impacts on community aesthetics.
Objective 1.13 Explore creating participation programs with home owner associations and subdivision groups to enhance the long-term
viability of neighborhood features and amenities.
Goal 2: Balance
Maintain a balanced approach to growth and development in order to preserve the City’s assets (schools, public safety, and co mpetitive edge in the
region) and fiscal health.
Objective 2.1 Encourage a balance of uses, including retail, office, medical, hospitality, entertainment, institutional, industrial and residential
that is both responsive to and sustainable within changing market conditions and sustains growth in property values for the
future.
Objective 2.2 Support appropriate public-private financial partnerships that will help retain and enhance the City’s economic base.
Objective 2.3 Ensure the City’s built environment fosters a positive relationship between the taxable value of real property and the
corresponding cost of municipal services.
Goal 3: Mobility
Develop an innovative mobility system that provides for the safe, convenient, efficient movement of people and goods, reduces traffic congestion,
promotes energy and transportation efficiency and promotes expanded opportunities for citizens to meet some routine needs by walking or
bicycling.
Objective 3.1 Provide a safe and efficient streets and pathways network that allows travel to shopping areas, schools, parks and places of
employment, reducing the need to travel on the City’s major arterials (FM 1709, FM 1938, or SH 114) and minimizes cut-
through traffic in residential neighborhoods.
Objective 3.2 Implement and promote a mobility system that addresses safety, design, comfort and ae sthetic elements such as landscaping,
crosswalks, railing, lighting, traffic-calming and signage in order to provide distinct character and functionality for the City.
Objective 3.3 In accordance with a need identified by the Citizen Survey, provide and promote a continuous pedestrian pathways system
that is user-friendly, efficient, safe, economical, and connect parks, shopping, schools, work and residential areas.
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Objective 3.4 Pursue opportunities to link Southlake’s pathways to systems in adjacent cities and trails on the Corps of Engineers property.
Objective 3.5 Develop a program to encourage the dedication of easements for pathway construction in accordance with the sidewalk
priority plan and Capital Improvements Plan.
Objective 3.6 Identify and prioritize the funding and construction of mobility system capital improvements projects according to the impacts
on safety, system efficiency, costs, and maintaining acceptable levels of service.
Objective 3.7 Increase safe bicycle mobility when reasonably possible.
Objective 3.8 Continue to promote a strong working relationship with the Texas Department of Transportation to identify, design and
implement projects that prevent or relieve congestion in the area.
Objective 3.9 Continue to evaluate and improve upon the existing mobility system within the City, maintaining existing infrastructure,
making required improvements and evaluating innovative ways to integrate transportation and land use.
Objective 3.10 Obtain adequate right-of-way for future roadway corridors and improvements.
Goal 4: Parks, Recreation and Open Space
Support a comprehensive integrated parks, recreation and open space system for all ages that creates value and preserves natu ral assets of the
City.
Objective 4.1 Ensure that new development incorporates usable open space.
Objective 4.2 Ensure that parkland and open spaces include an integrated mix of developed and natural areas with consideration of
protecting the City’s ecosystem and wildlife corridors.
Objective 4.3 Promote water conservation and reuse in the design of parks and open spaces.
Objective 4.4 Utilize partnerships to create open space and recreation facilities.
Objective 4.5 Ensure an even geographic distribution of park facilities and recreation activities—both active and passive—for citizens of all
ages.
Objective 4.6 Provide a full range of park facilities and linear linkages that will accommodate the current and future needs of the City’s
residents and visitors.
Objective 4.7 Integrate passive recreational opportunities into preserved natural and drainage areas.
Objective 4.8 Incorporate feedback received from the Parks and Recreation Citizen Survey into recreation activities and park facilities.
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Objective 4.9 Acknowledge the City’s rich natural history, heritage and historical landmarks.
Objective 4.10 Determine parkland desirable for dedication as part of the development process based on classification, location and
maintenance cost.
Objective 4.11 Prioritize investments in existing and established parks understanding that there will be strategic opportunities for land
acquisition.
Objective 4.12 Incorporate educational and learning opportunities within parks and related facilities.
Objective 4.13 Pursue recreational and educational opportunities on Corps of Engineers property compatible with the goal of protecting and
preserving the existing ecosystem for future generations.
Goal 5: Public Safety
Establish and maintain protective measures and policies that reduce danger, risk or injury to property and individuals who li ve, work or visit the
City.
Objective 5.1 Maintain a level of police, fire and ambulance services commensurate with population and business needs.
Objective 5.2 Provide effective and efficient professional public safety services in partnership with the citizens we serve, encouraging mutual
respect and innovative problem-solving, thereby improving the quality of life in our community.
Objective 5.3 Ensure compliance with the stated standard of response coverage and industry guidelines through the provision of facilities,
equipment, personnel and roadways.
Objective 5.4 Ensure that all buildings and public facilities are constructed in compliance with all applicable federal, state, and local safety
regulations and standards.
Objective 5.5 Maintain the continued compliance with national standard of excellence through the accreditation process.
Objective 5.6 Enhance and promote public safety through public-private partnerships and utilization and training of volunteers.
Objective 5.7 Maintain a high level of community readiness through training and communications among neighborhood and volunteer
groups and City, county, state, and federal entities.
Objective 5.8 Develop and implement safety education programs that enhance the quality of life and safety in the community.
Objective 5.9 Promote security of public buildings and infrastructure.
Objective 5.10 Ensure safe and healthy working conditions for City staff, volunteers and officials by providing security, facility, vehicular and
equipment maintenance, information, education and training.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 55
Goal 6: Economic Development
Create a diversified, vibrant and sustainable economy through the attraction and support of business enterprises and tourism meeting the vision
and standards desired by City leaders.
Objective 6.1 Promote the City both nationally and regionally as a great place to live, work, visit, shop and recreate.
Objective 6.2 Provide necessary, desirable and diverse goods and services for residents of the City.
Objective 6.3 Foster an environment that retains and supports existing businesses to ensure the sustainability of our existing tax base.
Objective 6.4 Attract desired businesses to ensure economic growth as well as continued employment and services for residents of the City.
Objective 6.5 Enhance the quality of life for residents and the sustainability of City business through the promotion of the tourism,
convention and hotel industry in the City.
Objective 6.6 Develop a clear and understandable incentive policy that accomplishes the business attraction and retention goals of the City
and is based on factors such as job creation, investment, quality of business, return on investment and overall value to the
community.
Objective 6.7 Foster communication between the public and private sectors.
Goal 7: Sustainability
Encourage the conservation, protection, enhancement and proper management of the natural and built environment.
Objective 7.1 Maintain and implement policies to reduce the use of nonrenewable resources, such as energy in the heating, cooling, and
operation and maintenance of City facilities.
Objective 7.2 Promote public awareness and education on such sustainability issues as public health, energy and water conservation and
overall environmental stewardship.
Objective 7.3 Promote sustainable public and private development practices and patterns, building design, water-use reduction and waste
reduction while maintaining the existing character of the City.
Objective 7.4 Protect surface, storm, and groundwater quality from septic discharge, impervious surface runoff, improper waste disposal and
other potential contaminant sources.
Objective 7.5 Conserve, restore and promote tree and plant cover that is native or adaptive to the City and region while also protecting
existing significant vegetation and maintaining the existing character of the City.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 56
Objective 7.6 Protect and enhance air quality in coordination with federal, regional and local agencies.
Objective 7.7 Recognize the importance of and protect the biological diversity for the ecological and aesthetic benefits to the community.
Objective 7.8 Define, protect, and celebrate the local Cross Timbers Ecosystem as a community asset for future generations.
Objective 7.9 Assess and minimize the ecological impact of any new trails provided on Corps of Engineers property.
Goal 8: Community Facilities
Plan and provide quality community facilities and services that effectively meet the service needs of Southlake’s residents and businesses.
Objective 8.1 Provide a level of community facilities that meet the needs of both the existing and projected population.
Objective 8.2 Encourage cooperation with the school districts in planning for and financing community facilities to encourage the cost -
effective provision of resources.
Objective 8.3 Systematically evaluate City-owned buildings in terms of their quality of service delivery and prioritize maintenance and
renovation accordingly.
Objective 8.4 Incorporate new computer and telecommunications technologies into public buildings and designated areas in order to
improve time and cost efficiency of service delivery and to meet increasing demands of information access and sharing.
Goal 9: Partnerships
Fully utilize and coordinate with the City’s many partners to address issues facing the area, provide ser vices and facilities, promote volunteerism,
support events and programs and encourage economic growth.
Objective 9.1 Partner with other government entities, non-governmental organizations and the North Central Texas Council of Governments
to address regional and local issues.
Objective 9.2 Continue mutually beneficial partnerships between the City and local school districts to explore the provision of facilities,
services, technology, and other opportunities through open communication and close coordination.
Objective 9.3 Continue active partnerships with non-profit organizations, civic groups and local businesses to create opportunities that
benefit the community.
Objective 9.4 Partner with local school districts to educate Southlake’s youth in their municipality and seek youth input when planning the
future of our community.
[SOUTHLAKE 2030] Water Conservation Master Plan
Ordinance No. 1061, Adopted April 16, 2013 [SOUTHLAKE 2030] 57
Goal 10: Infrastructure
Through sound management and strategic investment, develop, maintain, improve and operate public infrastructure that promotes health, safety
and an enhanced quality of life for all members of the community.
Objective 10.1 Ensure equitably-distributed and adequate services and facilities.
Objective 10.2 Plan and program land acquisition and the installation of all essential public facilities to reasonably coincide with the need for
such facilities.
Objective 10.3 Identify and implement programs where costs may be shared by multiple agencies and/or developers.
Objective 10.4 Provide for adequate public water and sewer services in appropriate areas of the City.
Objective 10.5 Provide and maintain an effective stormwater management system throughout the City.
Objective 10.6 Maintain and enhance existing infrastructure and levels of service through the provision of timely maintenance, repair and
replacement as needed.
Objective 10.7 Provide and maintain effective solid waste collection and recycling programs for residents.
Objective 10.8 Provide a streetlight system for adequate illumination and a wayfinding signage system for pedestrian and driver safety where
appropriate.
Appendix D: Letter to Texas Water Development Board
Public Works Department | 1950 E Continental Blvd |Southlake, TX 76092
Update of Water Conservation Master Plan
April 16, 2019
Texas Water Development Board
1700 North Congress Avenue
P.O. Box 13231
Austin, TX 78711
Enclosed please find a copy of the recently updated Water Conservation Plan for the
City of Southlake. This plan is being submitted in accordance with the Texas Water
Development Board and Texas Commission on Environmental Quality regulations.
The City of Southlake adopted the updates to this plan on April 16, 2019.
Sincerely,
Ashley Carlisle
Environmental Coordinator
City of Southlake
acarlisle@ci.southlake.tx.us
CC: Chris Harder, City of Fort Worth Water Utility Director
James Oliver, Tarrant Regional Water District General Manager
Kevin Ward, Trinity River Authority, Chair of Region C Water Planning Group
Appendix E: City of Southlake Non-Promotional Water Rate Structure
October 1 , 2018 R e s i d e n t i a l R a t e S t r u c t u r e
Gallons Rate ($)
1” meter
0 – 2,000 42.36
2,001 – 10,000 4.73
10,001 – 25,000 5.44
25,001 – 40,000 6.25
40,001 + 7.19
2” meter
0 – 7,000 131.21
7,001 – 10,000 4.73
10,001 – 25,000 5.44
25,001 – 40,000 6.25
40,001 + 7.19
October 1 , 2 0 1 8 S p e c i a l R a t e S t r u c t u r e
Gallons Rate ($)
Elderl y/Hardship 0 – 2,000 19.54
2,001 + 4.21
October 1 , 2 0 1 8 C o m m e r c i a l R a t e S t r u c t u r e
Gallons Rate ($)
1” meter
0 – 3,000 65.38
3,001 – 10,000 4.73
10,001 – 25,000 5.44
25,001 – 40,000 6.25
40,001 + 7.19
2” meter
0 – 7,000 147.80
7,001 – 10,000 4.73
10,001 – 25,000 5.44
25,001 – 40,000 6.25
40,001 + 7.19
3” meter 0 – 10,000 211.07
10,001 – 25,000 5.47
25,001 – 40,000 6.28
40,001 + 7.23
4” meter 0 – 12,000 252.27
12,001 – 25,000 5.47
25,001 – 40,000 6.28
40,001 + 7.23
6” meter 0 – 15,000 315.52
15,001 – 25,000 5.47
25,001 – 40,000 6.28
40,001 + 7.23
8” meter 0 – 18,000 378.80
18,001 – 25,000 5.47
25,001 – 40,000 6.28
40,001 + 7.23