A Drought Plamling Guide for Public Water Systems in Texas .' Prepared by Water Permits & Resource Management Division RG-226 (revised) July 2001
---􀁾.....􀁾...... iI!I TNRCC Robert J. Huston, Chairman R. B. "Ralph" Marquez, Commissioner John M. Baker, Commissioner Jeffrey A. Saitas, Executive Director .' Authorization for use
or reproduction of any original material contained in this pUblication-that is, material not obtained from other sources-is freely granted. The commission would appreciate acknowledgment.
Copies of this publication are available for public use through the Texas State Library, other state depository libraries, and the TNRCC Library, in compliance with state depository
law. For more information on TNRCC publications call 512/239-0028 or visit our Web site at: http://www.tnrcc.state.tx.us/publications Published and distributed by the Texas Natural Resource
Conservation Commission POBox 13087 Austin TX 78711-3087 The TNRCC is an equal opportunity/affirmative action employer. The agency does not allow discrimination on the basis of race,
color, raligion, national origin, sex, disability, age, sexual orientation or veteran sletus. In compliance wilh the Americans wilh Oisabiltties Act, this document may be requested in
alternate formats by contacting the TNRCC at (512)239-0028, Fax 239-4488, or 1-80D-RELAY-TX (TOO), or by wrtting P.O. Box 13087, Austin, TX 78711-3087.
Contents Introduction Who Should Read This Guide? 1 Should I Share This Guide with Others? 1 How to Contact Us 2 Where to Find the Rules 2 How Well Do You Know Your Water System? A Checklist
with Some Helpful Hints • 3 1. Are you in a drought? Is your area experiencing lower-than-nonnal rainfall? Is your area in a water-supply crisis? 3 2. Do you need help now? 3 3. Has
this drought, emergency, or water shortage caused supply problems for your water system? 3 4. Can you recognize your system's triggers for water-use restrictions? 3 5. Have you reviewed
your system's drought contingency plan (DCP)? 4 6. Do you know if all ofthe water you treat is actually reaching your customers? 4 7. When the next drought or water shortage arrives,
will your system be ready? 4 8. Do you know where to get infonnation on these topics? 5 Chapter 1 Emergencies and Boil-Water Notices Low Pressure and Water Outages 7 When do you need
to issue a boil-water notice? 7 Other conditions when you may have to issue a boil-water notice 7 7 How do you issue a boil-water notice? 7 Who else do you notify? 8 What should a boil-water
notice say? 8 How long must this boil-water notice stay in effect? 8 Do customers need to be notified when the boil-water notice is lifted? 8 How can you keep good communication with
your customers? 8 Emergency Sources and Approval Requirements : 9 Before an emergency'occurs 􀁾 9 Before connecting to an alternate water source 9 Sources ofwater that may be used on
a temporary, emergency basis 10 iii
Steps to activate a well that is an unused public water supply or a nonpublic water supply 10 Steps to activate alternate raw water sources for surface water treatment 11 Chapter 2 Drought
Contingency Plans What Is a Drought Contingency Plan? 13 Who Must Have a Drought Contingency Plan? 13 How can I tell ifmy system is an investor-owned utility? , 14 How do I get my DCP
approved? 14 IOUs must incorporate DCP into tariff 14 What if! don't charge for water? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 What Steps Does a
Drought Contingency Plan Include? 15 Step 1: Preparing for Droughts 15 Getting the public involved 15 Educating the public 16 Coordinating with nearby water systems 􀁾 . . . . 17 How
to identify your system's drought triggers . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Step 2: Taking Action as Drought Begins 19 What are response stages? 19 Notifying your
customers 20 Notifying the TNRCC :' 21 Step 3: Enforcing Water-Use Restrictions 21 IOU enforcement 21 Establishing procedures for variances 22 Step 4: Pulling out of the Drought 22 You
are required to review and update your DCP 22 Coordinating with regional water planning groups 22 Requirements for Wholesale Purchases 23 Wholesale customers 23 Wholesale suppliers 23
Chapter 3 Using a Rate Change As a Drought Strategy Before You Begin, Ask Yourself... . 25 Where Do I Begin? 25 Rate changes for cities, districts, counties, and WSCs 25 Rate changes
for IOUs 26 iv
Chapter 4 Reducing Water Loss: Leak Detection and Preventive Maintenance Water Loss " 29 What is water loss? 29 How does water loss occur? 29 When is action required? 29 Why should you
manage your water loss? 29 How can you manage water loss? 30 How do you calculate water loss? 30 Leak Detection 30 Who needs a leak-detection program? 30 What are the benefits ofleak
detection? ". 31 How should you conduct a leak-detection program? 31 Where should you focus on leak detection? 31 Preventive Maintenance 32 Tn"n·mg .IS.Important . 32 Winter maintenance
32 Late-night maintenance 32 Chapter 5 Planning Ahead Developing a Master Plan 33 How do you benefit from a master plan.l"' 33 What should your master plan include? 34 Getting community
input 35 Developing a Conservation Plan 35 Developing a Capital Improvements Program 36 What about Money? " " 36 Considering Consolidation 37 Getting Outside Help , 37 Chapter 6 For
More Help TNRCC Assistance on Drought 39 At the Austin Office 39 TNRCC Regional·Offices 40 Texas Water Development Board Assistance on Drought ".41 Contacting the TWDB 41 TWDB Phone
Contacts 41 v
Appendixes Appendix A: Low-Pressure Flowchart 45 Appendix B: Boil-Water Notice (English) 47 Appendix C: Boil-Water Notice (Spanish) 49 Appendix D: Sample Drought Triggers 51 Appendix
l?: Master Plan Data Sheet 53 ., Vi
Introduction Public water systems in Texas are all different, but one thing they all have in common is the responsibility to provide safe, reliable water to their customers. This can
be quite a challenge when Texans face drought conditions. In these hard times, your customers count on you for a scarce but essential human need---drinking water. They also rely on you
as a public health provider ofwater for basic sanitation in the community. We hope this guide helps you prepare your public water system to meet the needs of your community and your
customers during a crisis like drought. As you read this guide, remember that drought is just one of the many conditions that can compromise your ability to provide safe water to your
customers reliably. Consider, too, how your system might deal with floods, power outages, unusually cold weather, and other disruptions in service, whenever they occur. *' This drought
planning guide has been updated for use by all public water systems in Texas, including: • city-owned public water systems, • water districts, • water supply corporations, • investor-owned
water utilities, and • county-owned public water systems. Who Should Read This Guide? If you are the operator or manager of a public water system in Texas, this guide is for you. Should
I Share This Guide with Others? Certainly. Share this guide with anyone who is involved in the management and day-to-day operation of your water system-for example, members of a board
of directors or city council, if you have one. Ifyou need extra copies of this publication, you can print it from our Web site (click on "Publications" at the top ofthe page): www.tnrcc.state.tx.us
1
or order a copy from TNRCC Publications one ofthese ways: • Fax your order to 512/239-4488 • Mail your request to: TNRCC Publications, MC 195 PO Box 13087 Austin TX 78711-3087 • Ca1l512/239-0028
How to Contact Us For information about topics covered in this guide, contact the appropriate TNRCC team in the following sections ofthe Water Permits & Resource Management Division
ofthe TNRCC's Office of Permitting, Remediation & Registration: • Public Drinking Water Section, 512/239-6020 • Utilities & Districts Section, 512/239-6960 • Water Rights Permitting
& Availability Section, 512/239-4730 On the Web, go to www.tnrcc.state.tx.us.Click on "Index" and choose a topic under "Drought" or "Water." ., Note: This drought planning publication
is for general guidance only. It does not take the place ofthe rules and regulations covered by the guide. Where to Find the Rules The rules that pertain to public water systems are
contained in Title 30 Texas Administrative Code (30 TAC), Chapter 290, Subchapter D. These rules have been published in TNRCC publication RG-195, Rules and Regulationsfor Public Water
Systems. Rules for drought plans are in 30 TAC, Chapter 288, Subchapter B. You can fmd both the rules and the publication on the TNRCC's Web site, www.tnrcc.state.tx.us.Click on "Publications"
or choose "Rules" and follow the link to the Secretary of State's Web site. 2
How Well Do You Know Your Water System? A Checklist with Some Helpful Hints 1. Are you in a drought? Is your area experiencing lower-than-non:nal rainfall? Is your area in a water-supply
crisis? o Yes-Go to Question 2. o No-Go to Question 4. 2. Do you need help now? o Yes-Call staffmembers at the TNRCC's Austin offices. Contact infonnation appears in the introduction
and throughout the publication. Check Chapter 6 for more contact infonnation, including numbers for the TNRCC regional offices and infonnation about the Texas Water Development Board,
which is another state agency involved with drought and water issues. o No-Go to Question 3. ., 3. Has this drought, emergency, or water shortage caused anyone or more of these problems
for your-water system: • reduced water supply? • low pressure? • outages? • the need to issue a boil-water notice? o Yes-To fmd out how to deal with these crises, read Chapter 1, "Emergencies
and Boil-Water Notices" now. When the crisis is over, come back to this checklist. o No-Go Go to Question 4. 4. Can you recognize your system's triggers for water-use restrictions? o
Yes-Knowing when to restrict water use is an important step in managing your system's resources during a water emergency. Go to Question 5. o No-Triggers are signals, or weak links in
your system, that tell you it's time for your customers to cut back on their use. Read "Identifying Your System's Drought Triggers" in Chapter 2, "Drought Contingency Plans." 3
5. Have you reviewed your system's drought contingency plan (DCP)? DYes-It is always a good idea to review your DCP to make sure it is still effective and that it will help your system
in the latest emergency. Now would also be a good time to decide ifyour DCP should be updated. You might especially want to read sections on "Getting the Public Involved" and "Educating
the Public" in Chapter2 on DCPs. o No-Now is the time to fmd it and make sure it's up to date. Read Chapter 2, "Drought Contingency Plans," to learn what elements your DCP should contain.
6. Do you know if all of the water you treat is actually reaching your customers? o Yes-Are you sure? Check your system's total number ofgallons billed against the total number ofgallons
your well or treatment plant produced. Ifthe difference is more than can be accounted for by flush valves, irrigation ofpublic spaces, and other unmetered uses, it's possible that your
system is losing water. Read Chapter 4, "Reducing Water Loss: Leak Detectiofi and Preventive Maintenance." o No-When your water supply is critical, every drop counts. Water shortages
can result from leaks in the system, not from actual shortages in supply. To learn more about fmding leaks in your system, read Chapter 4, "Reducing Water Loss: Leak Detection and Preventive
Maintenance." 7. When the next drought or water shortage arrives, will your system be ready?DYes-Good. This means that you are a good manager, that you have learned from past experience,
and that you have taken stock ofwhat you need to do. Read Chapter 5, "Planning Ahead," to learn more about keeping on top ofyour system's needs. o No-Drought is a given in Texas. Your
water system can experience shortages during nondrought seasons, too. Start preparing now! Look at your rate structure and consider options that encourage customers to conserve. Read
Chapter 3, "Using a Rate Change as a Drought Strategy." Also read Chapter 5, "Planning Ahead" and begin completing the Master Plan Data Sheet, Appendix E. 4
8. Do you know where to get information on these topics: • funding sources and other financial issues? • help with planning? • technical assistance? • good management practices? • when
and how to issue boil-water notices? o Yes-Good. But ifyou don't have all that information in one place, check out the lists of contacts under "Getting Outside Help" in Chapter 5 on
"Planning Ahead" and in Chapter 6, "For More Help." o No-Look through the contacts listed in Chapters 5 and 6. One or more ofthese sources can give you the information you need. 5
., 6
Chapter 1 Emergencies and Boil-Water Notices Low Pressure and Water Outages When do you need to issue a boil-water notice? There are two common situations resulting from drought or other
water supply problems that may require public water systems to issue boil-water notices: • low distribution pressure resulting, for example, from a pump failure or line break; and •
water outage, a complete loss ofwater supply due to equipment failure or depletion ofthe water source. A flowchart in Appendix A shows the kind ofimmediate response that is required
by a water supplier when either ofthese emergencies exists. See this flowchart to help you determine ifyou need to issue a boil-water notice. This flowchart also appears in the rules
in 30 TAC, Section 290.47, AppendixH. Other conditions when you may have to issue a boil-water notice You should consider the need for issuing a boil-water notice in the following conditions,
although they are not related to drought or the flow chart (call the TNRCC for guidance): • when when microbiological samples from the system are found to contain E. coli or fecal coliform
organisms; • when you have inadequate disinfection levels; • when you have elevated fmished water turbidity levels; and • when the system is flooded. How do you issue a boil-water notice?
• You must issue all your customers a boil-water notice within 24 hours using the required boil-water language. A sample in English appears in Appendix B ofthis publication. It is found
in 30 TAC, Section 290.47, Appendix E. • You can mail the notice, and/or deliver the notice to each customer, and/or put it on television and/or radio. • You should issue bilingual notification,
as necessary. See Appendix C . ofthis publication for the required notice in Spanish. 7
Who else do you notify? • Call your TNRCC's drought coordinator at 512/239-6054. • Send a copy ofthe notice to: TNRCC Public Drinking Water Section, MC 155 PO Box 13087 Austin TX 78711-3087
• Call the TNRCC regional office nearest you to notify them about the boil-water notice. • Call your county health department in case they get calls from your customers. What should
a boil-water notice say? A sample ofthe required English notice appears in Appendix B ofthis publication, and a sample ofthe required Spanish notice, in Appendix C. You can fill in your
name and phone number and make copies for your customers. Read through the sample notice so you are familiar with what your customers need to do. How long must this boil-water notice
stay in effect? A boil-water notice must stay in effect until all of the following conditions have been met: • water distribution pressures of at least 35 pounds per square inch (psi)
can be maintained consistently; • a minimum of 0.2 mg/l free cWorine residual or 0.5 cWoramine residual (measured as total chlorine) is present throughout the system; • special water
samples collected in the distribution system for microbiological analysis are found negative for coliform organisms; and • any other situations that might compromise the potability ofthe
drinking water. Do customers need to be notified when the boil-water notice is lifted? Customers must be notified when the boil-water notice has been lifted, and it is safe to drink
the water. The notice may be hand-delivered or communicated by the local media-newspapers, radio, or television. How can you keep good communication with your customers? Good customer
relations are an important factor during a drought or water shortage. Make sure you do the following: • Involve the public. 8
• Make your customers part ofthe process and your plans. • Give your customers the correct information as soon as possible through meetings, newspapers and newsletters, local radio,
and television. • Keep it honest, keep it simple, and keep it consistent. • Keep a list ofphone contacts who can provide information or service to your customers in the event of a major
water system failure. • Decide who will be your contact with the media, and make sure they have the latest information. • Make sure your employees know to direct inquiries to your media
contact. Emergency Sources and Approval Requirements A public water supply "emergency" exists when the loss of supply will result in normal operating conditions of less than 35 psi throughout
the entire distribution system (for example, your well goes dry). This is the minimum standard for a public water supply. When emergencies occur as a result of drought, flooding, or
equipment failure, it is sometimes necessary to connect to an alternate source ofwater on a temporary basis. Before an emergency occurs you should: • Evaluate the existing system and
determine what improvements can be made to alleviate potential emergency outages. • Evaluate alternate sources ofwater that may be needed in an emergency-for example, interconnects,
unused public water supply wells, or raw water sources. • Enter into TNRCC-approved, written agreements for emergency interconnection with neighboring systems. • Review the steps necessary
to activate the alternate source. • See Chapter 5, "Planning Ahead," for more ideas. Before connecting to an alternate water source you must: Obtain TNRCC approval. The TNRCC will only
consider approving an alternate water source when you have implemented water-use restrictions. For more information, contact the TNRCC's Utilities & Districts Section, 512/239-6960.
All temporary and permarient piping must be acceptable to the TNRCC. However, normal installation requirements can be waived for temporary use. Contact a TNRCC regional office (see Chapter
6, "For For More Help") or the TNRCC's Public Drinking Water Section, 512/239-6020. 9
Sources of water that may be used on a temporary, emergency basis include: • An adjacent public water system. • A public water supply well that is not currently in use by the system.
• A nonpublic water supply well (normally restricted to domestic, irrigation, or industrial uses) with approval. Note: Wells can be approved for temporary, emergency use without all
standard equipment (for example, a 6-foot slab, sampling tap, 18-inch casing, or well meter). Alternate water sources are approved in the following order ofpreference: • First preference--sourcemeets
all drinking water standards. They include primary standards, which are health-related; and secondary standards, which are aesthetic in nature and change the taste, color, and odor.
• Second preference--source meets all primary standards, but has secondary violations. • Third preference--source has primary violations, in which case additional notification and p.rovision
ofbottled water may be required. , Note: The TNRCC will accept private laboratory or or historical chemical results when reviewing emergency source proposals. Water quality sampling
and acceptance will be coordinated by the nearest TNRCC regional office and the Drinking Water Monitoring Team in the Public Drinking Water Section, 512/239-6020. In certain cases, the
TNRCC can, on an emergency basis, order a neighboring system to interconnect for up to 90 days. For more information, contact the Utilities and Districts Section, 512/239-6960. Steps
to activate a well that is an unused public water supply or a nonpublic water supply: 1. Introduce a free chlorine residual of at least 50 mg/l into the well casing and allow it to stand
for at least 12 hoUrs. 2. Pump the well "to waste" until no free chlorine residual is detected. 3. Obtain three successive daily raw water samples free of coliform organIsms. 4. Contact
the TNRCC's Public Drinking Water Section at 512/239-6020 for approval before using.10
Steps to activate alternate raw water sources for surface water treatment: 1. Evaluate potential sources of contamination. 2. Evaluate temporary intake location. 3. Contact the TNRCC's
Public Drinking Water Section at 512/239-6020 for approval before using.11
12
Chapter 2 Drought Contingency Plans What Is a Drought Contingency Plan? The drought contingency plan (DCP) is defined as "a strategy or combination of strategies for temporary supply
management and demand management responses to temporary and potentially recurring water supply shortages and other water supply emergencies." Unlike water conservation, which focuses
on the ongoing maintenance and efficiency of the water supply system and customers' water-use habits, drought contingency is triggered by cases of extreme drought, periods of abnormally
high usage, supply contamination, or extended reduction in ability to supply water due to equipment failure. The rules and requirements for DCPs come from Title 30 ofthe Texas Administrative
Code, Chapter 288, Subchapter B. Who Must Have a Drought Contingency Plan? Ifyour water system charges its customers for water service, then you must have a DCP. The following table
presents some basic points about your DCP, depending on the ownership ofyour water system. Hyou are a To officially adopt To set special In your DCP, a DCP, you must drought rates, user
fmes are you must city, town, or adopt an adopt an allowed other ordinance ordinance municipality district pass a resolution pass a resolution not allowed water supply amend your tariff
amend your tariff not allowed corporation (requires board (requires board (WSC) approval) approval) investor-owned amend your tariff amend your tariff not allowed utility tlOU) (requires
TNRCC (requires TNRCC approval) approval) county pass a pass a allowed commissioners commissioners court order court order 13
How can I tell if my system is an investor-owned utility? Some investor-owned utilities call themselves a "district" or a "water supply corporation." Regardless ofthe name, the water
system is an investor-owned utility (IOU) if its owner is one ofthe following: • an individual, • a for-profit corporation, • a partnership, or • a nonprofit homeowners'or property owners'
association. In other words, unless your water system is operated by a city, a district established under state law, a county, or a nonprofit water supply corporation organized under
Chapter 67 ofthe Texas Water Code, it is almost certainly a private investor-owned utility. You can fmd the rules pertaining to IOUs in 30 TAC, Chapter 291. It is important to know if
you are an IOU because your DCP-as well as your rates, fees, and service policies-must be incorporated into your tariff and approved by the TNRCC. To fmd out more about your options
during a drought or other water crisis, see "Rate changes for IOUs" in Chapter 3, "Using a Rate Change as a Drought Strategy." How do I get my DCP approved? Once you have completed your
DCP, you must get it approved by your governing body. • City, town, or other municipally-owned water supplier-approved by the city council as an ordinance. • District water system-approved
by your board of directors as a resolution. • Water supply corporation (WSC}-approved by your board of directors and included in your tariff. • Investor-owned utility (lOU}-approved
by the owner or board and by the TNRCC and included in your approved tariff. • County-owned water supplier-approved in a commissioners court order. IGUs must incorporate DCP into tariff
Investor-owned utilities must incorporate their approved DCPs into their tariffs, according to 30 TAC Chapter 288, Subchapter B, and Chapter 291, Subchapters Band F. Because your DCP
is considered a minor amendment to your tariff, you can incorporate it by sending a written request to: 14
TNRCC Water Rights Permitting & Availability Section, MC 160 POBox 13087 Austin TX 78711-3087 IODs located within a city must have a minor tariffamendment approved by the city. What
if I don't charge for water? There are some water systems in Texas that do not charge their customers for water service-for example, some military institutions, colleges, universities,
businesses that have their own water systems, prisons, truck stops that are far from any other water system, or even some mobile home parks. Ifyou operate or manage one ofthese systems,
you are encouraged to develop a DCP, even though state law does not require it. This guide will help you understand how to prepare for the next drought. What Steps Does a Drought Contingency
Plan Include? A DCP covers four phases ofpreparing for and coping with a drought: 1. preparing for droughts before they occur, 2. taking action as a drought begins to put a strain on
your system or supply, 3. enforcing water-use restrictions during the drought, and 4. ending water-use restrictions when appropriate. Each ofthese stages is addressed through two or
more components ofthe DCP called for in the TNRCC rules. Step 1: Preparing for Droughts Preparing for a drought begins with the required components ofpublic involvement and public education.
You should also cover coordination with nearby water systems in this phase of your DCP. Another required component involves identifying your system's drought triggers. Conducting a thorough
analysis of your system to identify these triggers is a critical exercise that can make or break the success of your DCP. Getting the public involved You must involve your customers
in preparing your DCP. The reason for this is simple: if your customers have a voice in preparing the DCP, then 15
they will be more likely to use water wisely and comply with water-use restrictions when the plan gets implemented. The success ofyour DCP depends uponhow well your customers react to
the message you give them when facing a potential water supply problem. The goal for any public water supplier should be to achieve the necessary water-use reduction through voluntary
water-use restrictions. The buy-in that is necessary to successfully reduce water can only take place through customer involvement in both preparing and refming the DCP. Common ways
to involve the public include: • providing public notice that a drought plan is being prepared; • forming a citizen's advisory committee or task force; • holding public meetings; • conducting
customer surveys; • seeking input directly from large-volume water customers and other groups most likely to be directly impacted during implementation (for example, landscape maintenance
contractors, owners of car washes, golf course operators); and • distributing the draft plan plan for public review and comment prior to adoption. ., Educating the public An educated,
well-informed customer is more likely to comply with voluntary and mandatory water-use restrictions. Ifyour customers understand what they are asked to do, when they are supposed to
do it, and why, they will have a better chance of actually changing their water-use patterns to help the system. Ongoing public education should inform customers ofthe conditions that
would trigger water-use restrictions. Let your customers know what it takes to get water to their faucets, what the system limitations are, and what they can do to help. The information
provided should include a description of the conditions that will trigger implementation of the plan and a description of what can be expected once the DCP is in effect, including the
response and enforcement measures that must be taken. This information can also be coupled with water conservation tips for ongoing water savings inside and outside ofthe home. Providing
practical consumer information will help customers comply with the plan. For example, you might send out tips on proper lawnwatering practices with information about restrictions on
lawn watering. 16
Coordinating with nearby water systems As you think about public involvement in the drought planning process, consider coordinating with nearby water systems within your region. If your
water system relies on the same water supply source as another system, you could be affected by a .drought in similar ways. Having similar response stages (watering schedules) might
enhance your ability to communicatewith the public through a regional news media. You should still be on guard for confusion that can arise when there are differing requirements among local jurisdictions within the same
area. You and your neighboring water systems will have separate DCPs with different drought triggers. You should still coordinate on specific wateruse restrictions to reduce customer
confusion. For example, you might each adopt a twice-a-week watering schedule in which residences with street addresses ending in even numbers are allowed to water on Sundays and Thursdays
and those with addresses ending in odd numbers are allowed to to water on Saturdays and Wednesdays. This would also be a good time to explore your options for entering into a written
emergency interconnection agreement with a neighboring system to get more water in the event ofan emergency (see Chapter 1, "Emergencies and Boil-Water Notices"). How to identify your
system's drought triggers Unlike other types ofweather-related natural disasters, droughts develop slowly over the course ofmonths and years. Because ofthe almost imperceptible development
ofdrought, public water suppliers need to identify drought triggers that may indicate potential water supply problems before they actually happen. Because your DCP is required to include
measures for dealing with both supply and demand problems, your triggers should be defmed in the same way. Supply-side triggers are associated with getting the water-the water supply
system's management ofthe available source ofwater, such as a well or a lake. Demand-side triggers are associated with delivering the water-the public's use ofit. In Texas, as the water
supplies dwindle, we also usually see an increase in demand because ofoutside watering and swimming pools. The triggers you identify in your DCP should be easy for you to monitor and
measure. They should be stated in a way that can be understood by the public. This will help you establish the stages that require action. Such a gradual approach will help you avoid
over-or under-reacting as you gear up for drought conditions and later as you scale back, based on the level of 17
available water (see Appendix D, Example of Drought Response Stages with Supply-and Demand-Side Triggers). It is important to develop triggers that best suit the unique climate, geology,
and stream-flow conditions in your area. Historical records will help you determine the drought ofrecord-the period oftime when the amount ofwater in the supply source is at its lowest
levels. TNRCC rules require you to estimate the quantity ofwater that can be provided from a given supply source by comparing it to a repeat ofthe drought ofrecord for your area, and
to plan for a situation that compares to the lowest historical amount ofwater in that supply (see also "Supply-side triggers" below). What are response-stage triggers? Listed below are
examples ofthe triggers, or weak links, in your water system that might be identified as a signal for initiating a drought response. They are broken out in supply and demand categories.
Also see Appendix D for an example ofhow supply-and demand-side triggers can be defmed in a five-five-stage DCP.., Supply-side triggers • Well level. The most common source ofwater for
systems. Declining water levels in the well defme triggers for initiating a drought response. • Storage tank recovery. Reflects the ability ofyour pumps to keep up with your customers'
demand. • Reservoir storage. How much water is in a lake or pond. While lake levels are easy to see, looks can be deceiving. Due to evaporation, silting, and the actual shape ofthe reservoir,
you may have less water than you think you do. • Streamflow. The amount of water flowing down the river or into your reservoir might be a good way to predict a potential supply limitation.
• Wholesale supplier's drought stage. Ifyou are a wholesale customer, your triggers could be affected by water availability in your wholesale supplier's area. • Contamination. A required
trigger. Results from biological or chemical contamination (see Chapter 1 "Emergencies and Boil-Water Notices"). Demand-side triggers • Treatment rate as a percentage of plant capacity.
How much water you can treat on a given day. Can change from one day to the next. 18
• Total daily demand as a percentage of storage capacity. Associated with storage and delivery to the public. • Total daily demand as a percentage of production capacity. How much water
you can pump from the supply source. • Pump hours per day. Related to production capacity. A good way to measure how hard your system is working to provide water. Continuous pumping
can cause stress on the system and lead to mechanical failure. • Mechanical problems. A required trigger. A catchall category for such problems as line breaks, leaks, pump failures,
and clogged intakes. • Outage. A required trigger. A systemwide outage due to depletion of water supply (for example, your well is dry) or equipment failure (for example, pump failure).
Step 2: Taking Action as Drought Begins When you recognize that one or more triggers have occurred, you must respond appropriately. To be ready to respond, you will need to develop three
more required components of your DCP-the response stages, notifying customers, and notifyi.llg the TNRCC. What are response stages? The response stages in your DCP should spell out two
kinds of action that must be taken in response to the specific triggers you have identified: • what action your water system will take to manage the water supplythe way you operate your
system, such as leak detection and repair, adjusting the pressure, or acquiring alternative water supplies; and • what action the system will ask or tell its customers to take to use
less water-water-use restrictions. How do you begin water-use restrictions? Water-use restrictions should gradually curtail nonessential water uses as you progress through stages-from
mild to moderate, severe, and critical, and fmally to emergency conditions. Implement in stages A relatively simple DCP has four or five stages. An example of drought response stages
with supply-and demand-side triggers and responses appears in Appendix D. Water-use restrictions are all demand-side measures because they involve actions taken by the public. Because
they must be monitored, they are 19
almost always visible, like outdoor water use-watering lawns and washing cars. Make sure that the restrictions you initiate don't actually cause customers to increase water consumption.
This has been shown to be the case with alternate-day and odd-even watering schedules. People tend to panic. They feel compelled to water on their assigned day, even when they don't
need to. This is when customer education becomes very important. A better alternative is a twice-a-week watering schedule based on customer addresses. This approach, coupled with "anytime
watering" with a hand-held hose, is consistent with horticultural recommendations for maintaining landscapes, even in drought. Consult your DCP Before you start restricting water use,
make sure you have met all the requirements outlined in your drought contingency plan, including notice. Ifthose procedures do not match your needs, your DCP may need to be updated.
When you have determined that water-use restrictions are necessary, start with a voluntary watering schedule and tips for how to use· less water. If the water demands on the system remain
high or continue to increase, there will come a point when the welfare and integrity ofyour system and pumps may be jeopardized. At this point you may have to implement mandatory water-use
restrictions, or in a critical condition, prohibit all outside watering. Your goal should be to provide your customers with a continuous and adequate supply of water for reasonable uses.
Remember, mandatory restrictions can only be implemented under the specific conditions listed in your drought continency plan. Notifying your customers The means by which you notify
your customer ofa drought stage may be similar to the method used for the public involvement and public education. It is important to understand that notifying your customers when they
are in a drought stage is not the same thing as "public education." Iflittle or no public education has been done prior to the implementation ofthe DCP, then you may not be able to reduce
your your customers' water use effectively. 20
You should develop written procedures for notifying the public about the initiation and determination ofdrought response stages. Some procedures to notify the public include: • announcements
to local media-television, radio, and newspapers; • door-to-door notification during water supply emergencies; • signs along major roadways or marquees at businesses or churches; and
• dissemination of information through churches, schools, and civic groups. Notifying the TNRCC Ifyou are a public water system, you are required to notify the TNRCC of any mandatory
water-use restrictions imposed on your customers. This notice, which is required by TNRCC rules, must be provided within five working days ofthe day the mandate was issued. You should
call the TNRCC drought coordinator at 512/239-6054. Also be sure to notify the drought coordinator when water-use restrictions are lifted. Information on water-use restrictions is posted
on the TNRCC Web site for public access. ., Step 3: Enforcing Water-Use Restrictions When 􀁾􀁰􀁬􀁥􀁭􀁥􀁮􀁴􀁩􀁮􀁧 mandatory water-use restrictions, it is essential to have and use enforcement
measures for customers who violate the restrictions, depending on your type ofwater system. The enforcement measures can vary from fmes and water-use surcharges to flow restrictors and,
ultimately, termination ofwater service. A little visible enforcement can go a long way. Most water systems count on voluntary compliance and monitoring by utility staffand the public.
Municipal water systems may also use their police force to help enforce compliance. Political subdivisions have the power to levy fines. laDs have the option ofterminating water use.
Deciding how to deal with a customer who won't cooperate with wateruse restrictions can be troublesome. The specific steps should be listed in your drought contingency plan. Any enforcement
must be consistent and nondiscriminatory. IOU enforcement It is important to note that privately-owned utilities (laDs) are limited to these enforcement measures that are included in
in an approved tariff: • issuing written warnings;21
• installing flow restrictors; and • cutting off service for 7 days or until the end ofthe month, whichever comes ftrst. Establishing procedures for variances Your DCP must also address
the issue ofvariances. Ifa customer cannot comply with water-use restrictions, then your DCP must allow them to apply, in writing, for a variance to the restrictions. For example, some
allowance might be provided for more frequent watering ofnewly installed landscapes. Variances should be granted only for a speciftc time frame and use. Variances should expire when
the restrictions are lifted. Step 4: Pulling out of the Drought Your system should emerge from a drought in the same measured stages that you established to initiate action. Your plan
for ending water-use restrictions is defmed by your drought triggers--once conditions improve to the point that the triggering conditions no longer exist, you can scale back to a less
severe response stage. Telling your customers when to reduce or lift restrictions is just as important as telling them when you implement restrictions. If the public understands and
accepts these measures, they will be more likely to comply. Ifthere is confusion, then compliance will probably be low. Be sure that your DCP clearly states how customers are to be notifted
that water-use restrictions have ended. You are required to review and update your DCP Every drought is an opportunity to learn how well your DCP works. But even if the lesson is that
you prepared for this drought well, will the situation be the same when the next drought arrives? Things change over time--your customer base might grow, new industries might come to
your town, or the amount of water available to your system might change. And even if there is no drought to learn from, remember that TNRCC rules require you to review and update your
DCP at least every five years. Coordinating with regional water planning groups You should also pay attention to developments concerning regional water planning groups in your area.
Senate Bill 1, the state's 1997 water 22
planning law, created 16 working groups around the state to study their areas' water availability and long-tenn demands. Studies for the 16 designated regions were presented to the Texas
Legislature in January 2001. The 7'J'h Legislature continued the regional water planning process that was established in Senate Billl. You should keep up with activities of any regional
water planning groups in your area and also provide them a copy of your DCP. You can get infonnation about these groups from the Texas Water Development Board Web site, www.twdb.state.tx.us.
Requirements for Wholesale Purchases When there is a contract for wholesale purchase, there are special requirements for both the buyer (customer) and the seller (supplier). Wholesale
customers Wholesale customers must consult with their wholesale suppliers in preparing their DCPs. The DCP must include provisions for responding to reductions in the wholesale water
supply. This applies to your system, even if only part of your water supply is obtained from another supplier. Wholesale suppliers Ifyour water system supplies water to another system
that sells water to the public, then you are a wholesale public water supplier. Wholesale drought contingency plans must be submitted to the TNRCC for review. For further infonnation
on drought contingency plans for wholesale public water suppliers, please call 512/239-4730 and ask for the Water Conservation & Drought Management Team. 23
., 24
Chapter 3 Using a Rate Change As a Drought Strategy Ifyou need to limit water use, consider using a rate change as part ofyour defense strategy in a drought or water supply crisis. Adjusting
your rates can help you reduce demand on your system, generate revenues for capital improvements to increase supply, and recover some ofthe revenues lost due to water restriction. Metered
rates and rate changes can make a real difference in your system's performance because customers pay for the water they use. Before You Begin, Ask Yourself ... 1. What do I really need?
Gather and organize your records. 2. Am I making money or not? Are your revenues covering your expenses? ., 3. What can I do? I'm not making enough money from rates to cover my expenses.
4. Am I making enough money? I'm covering my expenses, but I need more to make repairs or improvements. 5. Do I have enough water? I'm making enough money, but I'm concerned about the
demand on my supply. 6. Ifyou need assistance, contact the TNRCC's Utilities & Districts Section at 512/239-6960, or other available assistance providers. Where Do I Begin? The procedure
you use for implementing a rate change depends on your organization and ownership. Rate changes for cities, districts, counties, and WSCs Ifyour water system is owned by a city, a district
established under state law, a county, or a water supply corporation (WSC), you can change your rates with the approval of your governing body. The table at the beginning of Chapter
2 on DCPs shows how special drought rates must be approved for each type ofpublic water system. Ofcourse, you should follow all the appropriate procedures that are required in legal
documents authorizing your organization. Pay particular attention to notice requirements for customers. 25
What about water rate surcharges? An effective way to reduce demand is a water rate surcharge. It can take the form of higher charges for water use in excess of some base amount, or
a temporary increase for a specific use. Water rate surcharges can be used to generate additional revenue to offset losses associated with reduced water sales. What about rates to encourage
conservation? Your water system may want to consider a rate structure that discourages water use and promotes conservation. One choice is increasing block rates. With this rate structure,
the customers who use more water also pay more per unit. The wear and tear on the system is paid for by those who cause it. For example, rates will be higher for customers who water
their lawns during peak-demand summer months. Your system should explore all the rate options that are available to help control water use. But you need to plan ahead to be sure these
strategies are in place by the time you need them. This is one way to prepare your customers for for the shortages you know you will have in the coming months. Rate changes for IOUs
If you are an IOU and you want to change your rates, you must first get approval from the TNRCC and then include the rate change in your tariff However, if you are an IOU operating in
a city, its governing body must approve your rate change. You must also provide notice and an opportunity for a hearing. This can take some time, so you must plan ahead to make sure
your rates are in effect when a drought occurs. IOU rates and tariffs that are allowed under TNRCC rules are listed below. Some ofthese rates may not appear to be related to drought
planning strategy. However, you should consider all the options that might be available. For example, a water rate increase to recover the costs for a required sampling, inspection fees,
or other governmental requirements would allow you to recoup some losses during a drought, when other revenues are down. There are two types ofIOU rate changes-major and minor tariff
changes. Call the TNRCC's Utilities & Districts Section at 512/239-6960 for advice and assistance on your options. 26
Major IOU rate and tariff changes Major IOU rate and tariffchanges require TNRCC review, customer notice, opportunity for public comment, and a hearing, if applicable. Several ofthese
rates, which are indicated with an asterisk, must be activated at the appropriate time, and only with TNRCC approval. • Increasing block rates-the more customers use, the more they pay
per unit. This rate discourages high water use. • Conservation rate--rates that charge more than the cost of service at higher usage amounts. • Phased rate*-a rate that goes into effect
in stages to avoid rate shock. • Single issue rate--allows recovery of costs for a single item, like a new well, but requires a complete rate case to be submitted within 24 months of
the single-issue rate application. • Temporary water rate*-allows utilities to recover losses resulting from orders to reduce pumping issued by courts and regulatory authorities. • Purchased-water
or water-use fee pass-through*-allows utilities to recover costs for water purchases, and for fees paid to withdraw water from an aquifer or lake. • Surcharge--specific amount,over and
above the usual cost of service to be collected from customers for a specific use, for example the cost of installing a new storage tank. • Extension policy-allows utility to control
and plan its service territory when there are concerns about the ability to provide water and at what cost. Minor IOU rate and tariff changes Minor rate and tariff changes allow IOU's
to take fairly quick action by filing a written request with the TNRCC for approval. The rates listed below with asterisks are all intended as follow-up action to one ofthe major rate
changes listed above: • Sampling cost surcharge--a flow-through to customers for costs a utility incurs for sampling and other regulatory requirements. • Phased rate adjustment* • Purchased-water
and water-use fee pass-through implementation* • Temporary water rate adjustment* • Service rule and customer fee change--utility operation policies for disconnection, customer service
inspection, meter testing and replacement, and payment options. 27
28
Chapter 4 Reducing Water Loss: Leak Detection and Preventive Maintenance Water Loss Your cheapest source ofwater is the water you do not lose. To combat water loss, you need to develop
methods to detect, locate, and repair leaks. You will discover that the savings in water you do not lose far outweigh the cost ofleak detection and repair. What is water loss? Water
loss is the difference between: • the amount ofwater produced, and • the amount ofwater billed. How does water loss occur? ., Water loss occurs when: • lines leak or break due to age,
corrosion, or poor construction; • valves are not maintained; • water meters have stopped working or have lost accuracy; • water use is not metered (such as at parks, fIre departments,
or other public uses); and • theft from fIre hydrants and flush valves. When is action required? All water systems experience some percentage ofwater loss. Generally, a water loss of
15 percent or less is acceptable. Water loss over 15 percent requires immediate attention and corrective action. Why should you manage your water loss? The increasing costs ofpumping,
treatment, and operation make it important to limit water loss all year, but especially during a drought. You should manage your water loss to: • prevent signifIcant loss ofrevenue,
• prevent higher-than-normal operating expenses, and • conserve water. 29
How can you manage water loss? You should: • repair leaks quickly, • replace customer meters on a scheduled basis to ensure accuracy, • look for leaks, • participate in a leak-detection
program, and • encourage your customers to report leaks. How do you calculate water loss? Use this procedure to calculate water loss monthly: 1. Figure out your system's total water
loss. Look at your records and fill in these blanks: A. Total gallons pumped for the month: B. Total gallons billed to customers for the month: And then subtract B from A: A -B = C (your
system's total water loss in gallons): _ .' 2. Figure out your system's percentage loss. (C..;-A) x 100 = % water loss (water loss ..;-water pumped) x 100 = % water loss Example: 30,000
gallons pumped -27,000 gallons billed =3,000 gallons water loss (3,000 gallons loss +-30,000 gallons pumped) x 100 = 10% water loss Leak Detection While there are many sources ofunaccounted-for
water loss, the primary cause of excessive loss is usually leaks. Who needs a leak-detection program? Everybody. Preventive maintenance for all water distribution systems should include
an active leak-detection and repair program. 30
What are the benefits of leak detection? Ifdone properly and regularly, a leak-detection program can save you money and water. A leak-detection program can: • reduce water loss; • reduce
water demand during peak seasonal usage; • reduce the strain to different parts ofthe water system components; • reduce the risk of contamination; • reduce property damage, legal liability,
and insurance because offewer main breaks; • prevent emergency repairs; • delay capacity expansion; • increase revenue; • increase your knowledge about the distribution system, which
will help you respond to emergencies and set priorities; • increase frrefighting capability; • improve relations with both the public and utility employees; and • provide a highly visible
example of water conservation to your customers, who will be encouraged to think about reducing their own water use before they are asked to take action. How should you conduct a leak-detection
program? There are several methods for detecting leaks in your distribution system. You can use sonic leak-detection equipment, which identifies the sound of water escaping a pipe. Sonic
equipment includes pinpoint listening devices for valves and hydrants and geophones for the ground. Or you can use correlator leak-detection equipment that pinpoints the exact location
by listening at two points. Small leaks make more noise than large leaks, and so they are easier to detect with hydrophones. They tend to cause more water loss on the long run because
large leaks are usually found quickly and repaired. A leak-detection program can be conducted by properly trained water system personnel or by water industry professionals. Where should
you focus on leak detection? You should focus your leak-detection efforts where you expect the most problems: • areas with a high rate of leaks and breaks, • areas where leaks can cause
the highest property damage, • areas where system pressure is high, • areas near stream crossings, and • areas where pipes have not been designed to carry the loads. 31
Preventive Maintenance Preventive maintenance is an important way to prevent water loss and to save water resources and money. But to institute a preventive maintenance program, you
need to plan ahead to ensure that appropriate maintenance and system upgrades are completed in time to meet the demands of spring and summer high usage. Part of your planning should
be to keep an adequate inventory of commonly used repair parts. Timing is important It is important to schedule maintenance and upgrades that require pumping and storage units to be
out of service for times when water usage is lowest. Properly scheduled preventive maintenance completed during low-usage periods will also lessen the impact ofthe next drought or emergency
situation. Winter maintenance For extended projects the winter months are usually the times of lowest usage, so this is the best time for the following kinds of work: • repairing a well,
• repainting a storage tank, • extending and upgrading water lines, • any work that requires pumping and storage units to be out of service, • upgrading distribution maps, • checking
and exercising valves to determine operational status, • checking the production on wells and system pumps to get an accurate determination ofgallons-per-minute produced, . • planning
for future maintenance and upgrades, and • organizing information for budget planning. Late-night maintenance For short-term projects, late night is a good time for maintenance. Such
projects include: • valving, and • electrical repairs. 32
Chapter 5 Planning Ahead When a water system ftrst starts to notice a water shortage, it is often too late to increase the supply. There are long lead times involved in drilling a new
well, adding plant capacity, or desilting a reservoir. Customers who are told to cut back on usage will wonder why the water system did not anticipate the shortage and take steps to
avoid it by planning ahead. There are a number oftools you can use to develop a planning process in your water system: a written master plan, a conservation plan, and a capital improvements
program. You should also give some thought to consolidation and getting some outside help with your planning efforts. Developing a Master Plan A written master plan helps to keep a big-picture
and forward-looking perspective. In Appendix E of this publication, you will fmd a handy master plan data sheet to help you get started and get your ideas on paper. A person can fmd
many reasons for not preparing a written plan-none of them are good. The most frequent reason is, "Why should I take the time to plan on doing something when I could just be doing it?"
Another argument heard in small water system offices is, "Ofcourse I have a plan. It's all in my head." How do you benefit from a master plan? Here are some of the reasons why you should
take the time to prepare a written master plan: • The process ofpreparing a master plan helps you and the people you work with to anticipate and prepare for future droughts and emergencIes.
• The process ofpreparing a master plan is an opportunity for commUnity involvement and education about the water system. • The master plan helps to introduce new ideas. This helps to
get out of the rut of"doing it this way because its always been done this way." • The process of thinking through the various strategies and ideas allows for mistakes to be made on paper,
rather than in the real world. • By putting the master plan in writing, you can help your water system avoid working in a crisis-of-the-day mode. • A plan will help keep your water water
system on track, which is particularly helpful when there are changes in staff, boards, and councils. 33
• When it's in writing, your master plan can be used to communicate needs. • The master plan helps determine actions that should be taken now to respond to the future. What should your
master plan include? Your water system's master plan must be a dynamic document. The fonnat should be developed so that it can be changed easily and the date ofthe changes can be noted.
As conditions change or as lessons are learned, you should update the master plan, so that your system's operators and managers can provide for guidance on a regular basis. Set aside
time to fonnally review and change your master plan every one to three years. A good master plan should provide a description of the water system as it is now and goals for how it will
serve customers in the future. Since you probably don't have a crystal ball, you might want to include different scenarios. These could include: • status quo--if nothing changes; • dramatic
changes in demand for water (up or down); • discussions and developmeflts arising from regional water planning or fonnation of regional water systems in your area; and • changes in regulations
that call for changes in the way you treat water and operate your system. Your master plan should include quantitative data that reflect the unique conditions and circumstances of your
system. To get you started, a master plan data sheet has been included in this publication as Appendix E. Your master plan should answer these key questions: • Who are your primary customers?
What are their water-use habits? The plan could include estimated median age, estimated income levels, employment status, major employers, predominant activities that affect water supply
(for example, keeping livestock, gardening), average water usage, peak demand periods, projected population growth, and other changes in water demand. • How does your water system look
now? List the facilities owned by your system, including wells, plants, and extent of distribution lines; capacities of the system; vehicles and equipment owned by the system; any reoccurring
violations of drinking water standards; any major changes or challenges in treating or delivering water in the future; age ofthe system; and any physical deficiencies in the system,
such as inadequate production capacity or significant amounts of unaccountedfor water. 34
• Where do you get your water now? Identify groundwater sources or surface water sources, nature of watershed area (agricultural, residential), quality of water source in terms of drinking
water standards, adequacy of water supply based on projected demand, trends or threats to the water supply, location of alternate sources, and use of interconnects. • Who runs the system,
and how? The written plan could include the organizational structure, including staffmg levels and qualifications, and consultants or contractors engaged; the existence of operating
procedures or other reference manuals, along with general responsibilities ofpersonnel at all levels; and the existence of documents concerning emergency response plans, drought contingency
plans and water conservation plans, major policies, bylaw provisions ofthe governing board, customer service policies, and crossconnection control programs. • What is your current financial
status? List major creditors, debt service requirements, and reserve fund requirements. State the procedures for adopting the budget. Discuss the adequacy ofcurrent rates or projected
changes in'rates. State the audit or fmancial reporting procedures, depreciation policy, if any, insurance coverages, growth potential, and major financial challenges in the future.
Getting community input While preparing your master plan, you can ask for input from the local civic organizations, the chamber of commerce, the community economic development commission,
and other organizations, in addition to your consultants, engineers, and financial advisors. You can also appoint a selected blue ribbon committee of customers. Getting the input ofothers
in the community will help them to become more informed about the water system and more confident that you are working toward the same goals they are. The advisory committee may be an
excellent way to recruit and test out new candidates for the governing board or corporate officer, ifyou have one. Developing a Conservation Plan Planning ahead for a drought is not
just a question of increasing your water supply or capacity. Your system can avoid the need for new facilities by reducing the normal demand for water all year. A water conservation
plan will help your system determine how much water your customers can save, 35
what you can do to help the customers save water, and what educational efforts are needed to encourage conservation. For forms and guidance on developing a conservation plan, go to www.tnrcc.state.tx
.us.click on "Index," and choose "Water Conservation." You can also call 512/239-4730 and ask to speak to a member of the Water Conservation & Drought Management Team. Also, many water
organizations have standard educational materials for programs that can be customized for your system. Developing a Capital Improvements Program Ifthe master plan is the road map, then
the capital improvements program tells you what car to buy, how much it will cost, and where the money is coming from. The master plan should point to the system's needs to achieve and
maintain compliance in the long run. The annual budget incorporates the system improvements that can be fmanced from revenues in the current year. The link between the two is the capital
improvements program. It takes the strategies identified in the master plan one step farther toward implementation.*' The capital improvements program should identify the major improvements
needed for the system to provide reliable service in the next 10 to15 years. It should also identify fmancial resources that can be used toward those improvements and other unfunded
needs. The priority of projects should be based on stated criteria. This plan helps to provide stability in the water system, even though the management ofthe system or elected officials
running the system may change. For larger projects that require outside fmancing, the capital improvement program should not be too specific about the best technical solution. Those
issues will be decided after a preliminary engineering report identifies the alternatives and the pros and cons of each alternative. Also, the water system should be open to regional
solutions that may not be apparent to the individual system. What about Money? Too many systems shy away from long-term planning because they know that doing anything will require money.
But that is why a water system needs to evaluate its situation in the first place! Having a plan can help attract capital, because the fmancial and physical needs of the system are identified
in. advance of a crisis. Planning ahead will give you a chance to build a reserve fund, to increase rates, to sell bonds, or to apply for loans and grants before they are critically
needed. 36
For more information on private and governmental fimding organizations, see the TNRCC publication, Funding Sources for Utilities, RG-220. To get a copy, go to www.tnrcc.state.tx.us.
and click on "Publications." Considering Consolidation Ifthe plans for your system show too many needs and too few resources, perhaps the answer lies in joining forces with one or more
nearby water systems. Ifyou have questions about consolidation assistance, call the TNRCC's Utilities & Districts Section at 512/239-6960. Consider the following consolidation options:
• one owner and one large system serving several different communities or subdivisions (consolidation or mergers and acquisitions); • one owner and several isolated systems, each providing
service to different communities or subdivisions (consolidation, satellite ownership, or mergers and acquisitions); • several public owners, each with individual systems operated through
a central coordinated board or authority (consolidation or public merger); • several owners, each with an"'isolated system, all served by a central wholesale provider; • several owners,
each with an isolated system, all using the same management and/or operating company (satellite management or contract operations); and • several owners or one private owner, all using
the same private management and/or operating company (privatization or contract operations). Getting Outside Help Depending on your system's size and complexity, you might want to consider
hiring a consultant to help you in your planning. Consulting engineers work with many large and small systems with a variety of problems and resources. They can offer new ideas and technologies,
as well as experience with what has actually worked or not worked. Many consulting engineers will work with the system to review funding options. Or you might want to engage a financial
advisor for this purpose. Regional councils of government, commonly called COGs, may also be able to help you with planning and grants. There are 24 regional COGs in Texas. They are
comprised oflocal governments-cities, counties, special districts (like water or conservation districts), school districts-working together on issues that tend to cross their boundaries.
They provide a variety ofprograms and services designed to meet regional needs. 37
For more information about COGs and the one nearest you, check the Web site oftheir association, the Texas Association of Regional Councils (TARC), at www.txregionalcouncil.org. You
can also contact TARC as follows: phone, 512/478-4715; fax, 512/478-1049; 1305 San Antonio, Austin, TX 78701. Neighboring water systems can be another good resource. It is important
to keep the lines of communication open with other systems that may have succeeded at overcoming challenges similar to the ones you are facing. In addition to the TNRCC and the TWDB,
you can also get technical assistance, classes, or training from the following groups: • Texas Rural Water Association, www.trwa.org;phone, 512/4728591; fax, 512/472-5186;1616 Rio Grande,
Austin, TX 78701. • Texas Water Utilities Association, www.twua.org; phone, 888-FORTWUA or 512/459-3124; fax, 512/459-7124; 1106 Clayton Lane, Ste 101 East, Austin, TX 78723-1093. •
Texas Engineering Extension Service, www.teexweb.tamu.edu; Engineering Utilities & Public Works Training Institute; phone, 800/824-7303; John B. Connally Bldg., 301 Tarrow, Ste 119,
College Station, TX 77840-7896. ., • Community Resource Group, www.crg.org; phone, 512/454-1033; fax, 512/371-1051; 7701 N. Lamar, Ste 503, Austin, TX 78752. 38
Chapter 6 For More Help TNRCC Assistance on Drought At the Austin Office On the Web: Go to www.tnrcc.state.tx.us.click on "Index" and choose "D" and "Drought Information." Also see "Rules"
and "Publications." E-mail: Questions can be sent to TNRCC staff in the Water Permits and Resource Management Division at watermon@tnrcc.state.tx.us. By mail: TNRCC Section Name, Mail
Code PO Box 13087 *' Austin, TX 78711-3087 Public Drinking Water Section Mail Code 155 boil-water notices cross-connection control program disinfection Drinking Water Monitoring Team
drought coordinator interruptions of service (systemwide) outages plumbing fixtures Utilities & Districts Section Mail Code 153 assistance visits certificates of convenience and necessity
(CCNs) emergency rate increases (investorowned utilities only) funding 39 512/239-6020 pressure problems reporting outdoor watering restrictions Surveillance & Technical Assistance Team
system operations issues treatment of drinking water water quality water-use restriction notices512/239-6960 Utility Certification & Rate Analysis Team Utility Creation & Plan 􀁒􀁥􀁶􀁾􀁥􀁷Team
utility service areas water tariffs for IOUs water-use restriction notices for laDs
implementing drought contingency plans 􀁱􀁾􀁮􀁴􀁩􀁲􀁹􀁭􀁧􀁷􀁭􀁥􀁲􀁳􀁾􀁩􀁮􀁧􀁳􀁦􀁵􀁲􀁤􀁲􀁯􀁵􀁧􀁨􀁴 planning purposes water rights Water Rights Permitting & Availability Section Mail Code
160 Conservation & Drought Management Team developing drought contingency plans developing water conservation goals developing water conservation plans 512/239-4730 Water Information
& Assistance Section, Consumer Hot Line 512/239-6100 Mail Code 141 customer questions about rates customers ofIOUs and services disconnection of service TNRCC Regional Offices Region
1 Region 5 Reg,ion 9 Region 13 Amarillo Tyler Waco San Antonio 806/353-9251 903/535-5100 254/751-0335 210/490-3096 Region 2 Region 6 ., Region 10 Region 14 Lubbock EIPaso Beaumont Corpus
Christi 806/796-7092 915/834-4949 409/898-3838 361/825-3100 Region 3 Region 7 Region 11 Region 15 Abilene Midland Austin Harlingen 915/698-9674 915/570-1359 512/339-2929 956/425-6010
Region 4 Region 8 Region 12 Region 16 Arlington San Angelo Houston Laredo 817/588-5800 915/655-9479 713/767-3500 956/791-6611 40
Texas Water Development Board Assistance on Drought The Texas Water Development Board (TWDB) is the state agency charged with planning for statewide water resources. The TWDB also plans
and administers low-cost financial assistance programs for projects dealing with the planning, design, and construction of water supply, wastewater treatment, flood control, and agricultural
water conservation. The TWDB has a variety ofprograms and services to assist communities in developing and implementing local responses to drought-induced water supply problems. These
include: • Drought-related information-how drought is measured, monitored, and mitigated; current reports by region on drought status, water condition, and stream flow; Web links to
many state and national sites. • Technical assistance--regional and state water planning and water conservation practices. • Financial assistance--infrastructure construction, research
and regional facilities planning, and flood mitigation. • Information on regional watS(r planning groups-the 16 regional water plans, maps, meeting minutes, and updates. Contacting the
TWDB On the Web: Go to www.twdb.state.tx.us and look for the link on "Drought Status and Information" link. By Mail: Texas Water Development Board P.O. Box 13231 Austin, TX 78711-3231
TWDS Phone Contacts Drought Indices & Water Resources Data Municipal & Industrial Drought Management & Conservation Agricultural Drought Management & Conservation Water Audit & Leak
Detection Water Conservation Public Information (English and Spanish) Water Supply Data & Special Investigations Financial Assistance for Water Supply Improvements Border Areas Other
Areas 41 512/936-0877 512/463-7988 512/463-7940 512/463-8048 512/463-7955 512/936-2420 512/463-7509 512/463-7857
42
Appendix A: Low-Pressure Flowchart *' PUBLIC WATER SUPPLIER RESPONSE TO LOSS OF PRESSURE TO ALL OR PARTS OF THE DISTRIBUTION SYSTEM r------No------..... Yes Yes No No---< Yes Disinfect
in accordance with AWWA standards Complete repair and/or restore normal pressure 􀀾􀀭􀀭􀀭􀀭􀀭􀁎􀁯􀀭􀀭􀀭􀀭􀀮􀀮􀀮􀀮􀀬􀁾 Immediately issue a Boil Water Notification to affected area in
accordance with 30 TAC 290.46(s) and TNRCC directions. Notify TNRCC Reoional Office. Yes Flush until the chlorine residual reaches normal operating levels or until a minimum of two volumes
of the affected line is flushed, whichever is greater. If the water Is not clear after the prescribed flushing, continue to flush until water clears. Immediately collect bacteriological
samples No from the affected portion of the distribution system and return the affected portion to service. Office immediately. Additional measures up to and including the issuance of
a Boil Water Notification to affected area may be required. Yes STOP No further action necessa 'Dewatering occurs when the distribution system is depressurized to perform line repair
or replacement. 43
44
Appendix B: Boil-Water Notice (English) BOIL-WATER NOTIFICATION [INSERT NAME OF SYSTEM] Due to conditions which have occurred recently in the water system, the Texas Natural Resource
Conservation Commission has required the system to notify all customers to boil their water prior to consumption. To ensure destruction of all harmful bacteria and other microbes, water
for drinking, cooking, and ice making should be boiled and cooled prior to consumption. The water should be brought to a vigorous rolling boil and then boiled for two minutes. In lieu
of boiling, you may purchase bottled water or obtain water from some other suitable source. When it is no longer necessary to boil the water, water system officials will notify you.
Ifyou have questions regarding this matter you may contact: (list utility officials) ., (list phone numbers) --------------at:----------Instructions: • List more than one utility official
and phone number. Do not list the TNRCC as the primary contact. • If a customer wishes to call the TNRCC, please have them call 512/239-6020. 45
46
Appendix C: Boil-Water Notice (Spanish) AVISO DE HERVIRAGUA [INSERT NAME OF SYSTEM] Debido a condiciones urgidos recientemente en el sistema de agua potable, la Comisi6n de Texas para
la Conservaci6n de los Recursos Naturales (Texas Natural Resource Conservation Commission, 0 TNRCC) exige a usuarios que hiervan el agua antes de consumo. Para estar seguro de que toda
la bacteria y los microbios hayan sido eliminados, el agua que va a ser utilizada para beber, cocinar, y hacer hielo debe ser hervido y despues dejarlo enfriar antes de consumirlo. EI
agua debe llegar a un punto vigoroso de ebullici6n y debe hervirse por dos minutos. En vez de hervir el agua, puede comprar agua embotellada u obtener agua de otra fuente. Las autoridades
del sistema de agua Ie avisanin cuando ya no sea necesario hervir el agua. Preguntas sobre este aviso pueden ser dirigidas a: ., Oficiales de Servicios de Agua Numeros de Telefono _______________
a: _ Instructions: • List more than one utility official (under "Oficiales de Servicios de Agua") and phone number (under "Nlimeros de Telefono"). Do not list the TNRCC as the primary
contact. • Ifa customer wishes to call the TNRCC, please have them call 512/239-6020. 47
., 48
Appendix D: Sample Drought Triggers Example of Drought Response Stages with Supply-and Demand-Side Triggers* Stage 1 Reservoir .levels at Demand exceeds Raise public Mild conditions
50% ofcapacity 60% of storage awareness ofthe capacity for 3 days supply situation and request voluntary reductions in nonessential water use Stage 2 Reservoir levels at Demand exceeds
Implement Moderate conditions 40% ofcapacity 70% of storage mandatory capacity for 3 days restrictions on certain ., nonessential water uses Stage 3 Reservoir levels at Demand exceeds
Implement ban on Severe conditions 30% ofcapacity 80% of storage certain noncapacity for 3 days essential water uses and water rate surcharge for excessive use Stage 4 Reservoir levels
at Demand exceeds Continue ban on Critical conditions 15% ofcapacity 90% of storage nonessential water capacity for 3 days uses, increase water rate surcharge, activate backup wells
Stage 5 System outage due Demand exceeds Initiate emergency Emergency conditions to depletion ofwater 100% of storage . response supply or equipment capacity for 3 days procedures failure
* These triggers are examples. You should adopt triggers that match the unique needs ofyour public water system. 49
.' 50
Appendix E: Master Plan Data Sheet Public Water System: PWS J.D. No.: _ Date: Your name: _ Who are your primary water clJstomers? Number ofretail connections Number of wholesale connections
Major employers Predominant activities that affect water supply (livestock, gardening,canNashes,pools) Average water usage ., Peak demand periods Projected population growth Other considerations
How does your water system look now? List wells List other supply sources List plants Age ofmajor components of the system Describe facilities (tanks, distribution system, treatment)
51
List other equipment owned by the system Any reoccurring violations of drinking water standards? Any physical deficiencies? I Ifyes, what are they (leaks, not enough capacity)? Any major
changes or challenges in treating or delivering water system in the future? Active leak detection program? Active cross-connection program? ., Where do you get your water from now? List
groundwater sources List surface water sources Nature ofthe watershed (agricultural, residential) Quality of water in terms of drinking water standards? Adequacy of current water supply,
given projected demand Trends or threats to your water supply Location of alternate supplies Location of current interconnects Location ofpossible future interconnects 52
Who runs the water system, and how? Describe organizational structure Staff and qualifications List current consultants or contractors Do you have written operating procedures? Where
are they located? Do you have reference manuals? Where are they located? List general responsibilities of personnel at all levels Do you have emergency response plans? Where are they
located? ., Do you have a conservation plan? Where is it located? Do you have a drought contingency plan? Where is it located? Ifyou are governed by a board or council, do you have written
policies and bylaws? Where are they located? Do you have written customer service policies? Where are they located? Do you have preventive maintenance schedules and where are they located?
53
What is your current financial status? What are your current rates? Do your rates encourage conservation, or give big users a break? Ifyou purchase water, what rates do you pay? When
did you last increase your rates? Do you have a current audit? What are your fmancial reporting procedures? List your major creditors ., What are your debt service requirements? What
are your reserve fund requirements? Describe your procedure for adopting a budget? What kind of insurance coverage do you have? What is the system's growth potential? How much "emergency"
money can you access? 54
I. I:
AGREEMENT THIS AGREEMENT is made by and 􀁢􀁥􀁴􀁷􀀮􀁥􀁾􀁮 􀁣􀁯􀁮􀁳􀁾Townsend & Associates, Inc. hereinafter cal,!ed 􀀢􀁕􀁎􀁄􀁾􀁒􀁓􀁉􀁇􀁎􀁅􀁄􀂷􀀬 and th@iTVOF F. 􀁍􀁅􀁒􀁳􀀭􀁥􀀽􀁾 ) hereinafter
called OWNER. 􀀻􀁖􀁑􀁲􀀯􀁾 IJ,../.'M. 􀁣􀁾􀀬 I 􀁲􀀨􀀡􀀿􀁾􀁬􀀧􀁾 􀁣􀀮􀀣􀀮􀁐􀁾􀁷􀀮􀀶􀁇􀀩 7 WHEREAS, OWNER desires UNDERSIGNED to perform Engineering Design and Services During Construction
for the Sanitary Intercepter Tunnel serving· portions of Farmers Branch and the city of Addison, as set forth herein and in Scope of Services, marked Exhibit "A" and "B", and attached
hereto and incorporated herein; and WHEREAS, the UNDERSIGNED has agreed to perform such work and services, NOW, THEREFORE, all parties agree as follows: SECTION 1 -GENERAL UNDERSIGNED
shall furnish and pay for all labor, tools, materials, equipment, supplies, transportation and management necessary to perform Engineering Design and Services During Construction forthe
Farmers Branch/Addison Sanitary InterceptorTunnel as set forth in "Section 2." hereof for the OWNER in accordance with the terms, conditions and provisions of the Scope of Services,
marked Exhibits "A" and "B" attached hereto and incorporated herein for all purposes. OWNER may, at any time, stop any services by the UNDERSIGNED upon giving UNDERSIGNED written notice.
UNDERSIGNED shall be bound to OWNER by the terms, conditions and responsibilities toward the OWNER for UNDERSIGNED's services set forth in this Agreement. SECTION 2 -SERVICES a. The
Engineering Design Services, when authorized in writing by a Notice to Proceed, shall be performed by the UNDERSIGNED in accordance with the OWNER'S requirements; as set forth in Exhibit
A and summarized as follows: rI Prepare construction plans, and specifications including surveying and 􀁾􀁯􀁴􀁥􀁣􀁨􀁮􀁩􀁣􀁡􀁬 services for a'Sanitary Intercepter Tunnel ranging in size
from 60 to -? 72 I ches in diameter for a distance of approximately 22,200 lineal feet from the • . Ity River Authority intercepter, easterly crossing 1-35 generally following an .alignment
along Valley View Lane and Marsh Lane in the city of Farmers Branch, Texas. 1
IIi . I b. c. d. e. a. The following Services During Construction, when authorized in writing by a Notice to Proceed shall be performed by the undersigned in accordance with the OWNER'S
requirements; as set forth in Exhibit B and summarized below: Provide Construction Management Services for the construction of the Sanitary Interceptor Tunnel referred to in paragraph
a. above including Detailed full time observation of construction, including inspection, reporting and recommendations to owner for conformance with plans and specifications, shop drawing
review, recommendations for pay estimate approvals, utility and traffic control coordination, daily approval of all Contract pay items, and coordination of all restoration, daily clean
up and citizens complaints, and monitor contractors schedules. UNDERSIGNED shall be responsible for the professional quality, technical accuracy, and the coordination of all designs,
drawings, specifications, plans and other services furnished by UNDERSIGNED under this Agreement. UNDERSIGNED shall, without additional compensation, correct or revise any errors or
deficiencies in the design, drawings, specifications, plans and other services. Neither OWNER'S review, approval or acceptance of, nor payment for any of the services required under
this Agreement, shall be construed to operate as a waiver of any rights under this Agreement or of any cause of action arising out of the performance of this Agreement, and UNDERSIGNED
shall be and remain liable to OWNER in accordance 􀁷􀁩􀁴􀁾􀀱 applicable law for all damages to OWNER caused by UNDERSIGNED's negligent performance of any of the services furnished under
this Agreement. The rights and remedies of OWNER under this Agreement are as provided by law and equity and shall include but shall not be limited to the right to seek specific performance
of the terms hereof and to strictly enforce all terms and provisions.. SECTION 3 PAYMENT OWNER shall pay UNDERSIGNED for all Engineering Design services 􀁡􀁵􀁴􀁾􀁬􀁯􀁲􀁩􀁺􀁥􀁤 in writing
and properly performed by UNDERSIGNED on the basis herein described, subject to additions or deletions for changes or extras agreed upon in writing. i! . b. Partial payment for Engineering
Design Services will be as stipulated in Exhibits "C" and "D" attached hereto and incorporated herein. Invoices shall be submitted .monthly. 2
b. In the event UNDERSIGNED's performance of this Agreement is delayed or "interfered with by acts of the OWNER or others, UNDERSIGNED may request an extension of time for the performance
of same as hereinafter provided, but shall not be entitled to any increase in fee or price, or to damages or additional compensation as a consequence of such delays, not to exceed one
year. c. No allowance of any extension of time, for any cause wl"latever, shall be claimed or made to the UNDERSIGNED, unless UNDERSIGNED shall11ave made written request upon OWNER for
such extension within forty-eight (48) hours after the cause for such extension occurred, and unless OWNER and UNDERSIGNED have agreed in writing upon the allowance of additional time
to be made. SECTION 5 -DOCUMENTS a. All instruments of service (including plans, specifications, drawings, reports, designs, computations, computer programs, estimates, surveys other
data or work items, etc.) prepared under this Agreement shall be submitted for approval of the OWNER. All instruments of service shall be professionally sealed as may be required by
law or by OWNER. 1II b. c. Such instruments of service, together with necessary supporting documents, shall be delivered to OWNER, and OWNER shall have unlimited rights, for the benefit
of OWNER, in all instruments of service, including the right to use same on any other work of OWNER without additional cost to OWNER. If, in the event OWNER uses such instruments of
service on any work of OWNER 􀁯􀁴􀁾􀁬􀁥􀁲 than that specified in the Scope of Services, attached as Exhibits "A" and "B", provided UNDERSIGNED completes this Agreement, under those circumstances
OWNER hereby agrees to protect, defend, indemnify and hold harmless the UNDERSIGNED, their officers, agents, servants and employees (hereinafter individually and collectively referred
to as "Indemnities"), from and against suits, actions, claims, losses, liability or damage of any character, and from and against costs and expenses, including, in part, attorney fees
incidental to the defense of such suits, actions, claims, losses, damages or liability on account of injury, disease, sickness, including death, to any person or damage to property including,
in part, the loss of use resulting therefrom, arising from any inaccuracy, such use of such instruments of service with respect to such other work except where UNDERSIGNED participates
in such other work. UNDERSIGNED agrees to and does hereby grant to OWNER a royalty-free license to all such instruments of service which UNDERSIGNED may cover by copyright and to all
designs as to which UNDERSIGNED mayassert any rights or establish any claim under the design patent or copyright laws. UNDERSIGNED, after completion of the project, agrees to furnish the originals of all such instruments
of service to the OWNER. 4
rfl!I a. b. c. SECTION 6 -TERMINATION OWNER may suspend or terminate this Agreement for cause or without cause at any time by giving written notice to trle UNDERSIGNED. In the event
suspension or termination is without cause, payment to UNDERSIGNED, in accordance with the terms of this Agreement, will be made on the basis of services reasonably determined by OWNER
to be satisfactorily performed to date of suspension or termination. Such payment will be due upon delivery of all instruments of service to OWNER. . Should the OWNER require a modification
of this contract with UNDERSIGNED, and in the event OWNER and UNDERSIGNED fail to agree upon a modification to this Agreement, OWNER or UNDERSIGNED shall have the option of terminating
this Agreement and the UNDERSIGNED's services hereunder at no additional cost other than the payment to UNDERSIGNED, in accordance with the terms of this Agreement, for the services
reasonably determined by OWNER to be properly performed by the UNDERSIGNED prior to such termination date. SECTION 7 -INSURANCE UNDERSIGNED shall provide and maintain Workers Compensation
and Employer's Liability Insurance for the protection of UNDERSIGNED's employees, as required by law. of any employer. UNDERSIGNED shall also provide and maintain in full force and effect
during the time of this Agreement, insurance (including, but not limited to, insurance covering the operation of automobiles, trucks and other vehicles) protecting UNDERSIGNED and OWNER
against liability from damages because of injuries, death, suffered by any person or persons other than employees of UNDERSIGNED, and liability for damages to property, arising from
or growing out of UNDERSIGNED's operations in connection with the performance of this Agreement. Such insurance covering personal and bodily injuries or death shall be in the sum of
not less than Two Hundred Fifty Thousand Dollars ($250,000.00) for one (1) person, and not less than Three Hundred Thousand Dollars ($300,000.00) for any one (1) occurrence. Insurance
covering damages to property shall be in the sum of not less than Three Hundred Thousand Dollars ($300,000.00) for anyone (1) occurrence, and Three 􀁈􀁕􀁾􀁤􀁲􀁥􀁤 Thousand Dollars ($300,000.00)
aggregate. A signed Certificate of Insurance, satisfactory to OWNER, showing compliance with the requirements of this Section shall be furnished to OWNER before any services are performed
under this Agreement, and srlall further indicate that each and every policy for liability insurance coverage as required herein includes a 5
I: f[ri "Contractual Liability Coverage" endorsement covering the Agreement under "Section 8." hereof. Such Certificate of Insurance shall provide for ten (10) days written notice to
OWNER prior to the cancellation ormodification of any insurance referred to therein. SECTION 8 -INDEMNIFICATION FOR INJURY AND PERFORMANCE UNDERSIGNED further specifically obligates
itself to OWNER in the following respects, to-wit: The UNDERSIGNED hereby agrees to protect, defend, indemnify and hold harmless the OWNER, their officers, agents, servants and employees
(hereinafter individually and collectively referred to as "Indemnities"), from and against suits, actions, claims, losses, liability or damage of any character, and from and against
costs and expenses, including, in part, attorney fees incidental to the defense of such suits, actions, claims, losses, damages or liability on account of injury, disease, sickness,
including death, to any person or damage to property arising from any act, error, omission or neglect of the UNDERSIGNED, its officers, p.mployees, servants, agents or subcontractors,
or anyone else under the UNDERSIGNED's direction and control, and arising out of, occurring in connection with, resulting from or caused by the performance or failure of performance
of any work or services called for by this Agreement, or from conditions created by the performance or non-performance of said work or services. In the event one or more of the Indemnities
is determined by a court of law to be jointly or derivatively negligent or liable for such damage or injury, the UNDERSIGNED shall be obligated to indemnify OWNER as provided herein
on a proportionate basis in accordance with the final judgement, after all appeals are exhausted, determining such joint or derivative negligence or liability. The UNDERSIGNED is not
responsible for the actions of the OWNER's contractor to perform the construction of the improvements covered under this Agreement. Acceptance and approval of the final plans by the
OWNER shall not constitute nor be deemed a release of this responsibility and liability of UNDERSIGNED, its employees, associates, agents and Engineers for the accuracy or competency
of their designs, working drawings and specifications, or 􀁯􀁴􀁾􀁬􀁥􀁲 documents and work; nor shall such approval be deemed to be an assumption of such responsibility by the OWNER for
any defect in the designs, working drawings and specifications, or other documents prepared by UNDERSIGNED, its employee.s, contractor, agents and Engineers. 6
I.··. I • I\ -1.-III. III\ SECTION 9 -INDEMNIFICATION FOR UNEMPLOYMENT COMPENSATION UNDERSIGNED agrees that it is an independent contractor and not an agent of the OWNER, a.nd that UNDERSIGNED
is subject, as an employer, to all applicable Unemployment Compensation Statutes, so as to relieve OWNER of any responsibility or liability from treating UNDERSIGNED's employees as employees
of OWNER for the purpose of keeping records, making reports or payments of Unemployment Compensation taxes or contributions. UNDERSIGNED further agrees to indemnify and hold OWNER harmless
and reimburse it for any expenses or liability incurred under said Statutes in connection with employees of UNDERSIGNED. SECTION 10 -INDEMNIFICATION FOR PERFORMANCE UNDERSIGNED shall
defend and indemnify OWNER against and 110Id OWNER and the premises harmless from any and all claims, suits or liens based upon or alleged to be based upon the non-payment of labor,
tools, materials, equipment, supplies, transportation and management costs incurred by UNDERSIGNED in performing this Agreement. SECTION 11 -ASSIGNMENT UNDERSIGNED shaH not assign or
sublet this Agreement, or any part thereof, without the written consent of OWNER. SECTION 12 -APPLICABLE LAWS UNDERSIGNED shall comply with all Federal, State, County and Municipal laws,
ordinances, regulations, safety orders, resolutions and building codes relating or applicable to services to be performed under this Agreement. . lis A reement is entered into SUbject
to the Charter and Ordinances of the􀁾 FARMERS BRANC and the laws of the State of Texas. SECTJON 13 -DEFAULT OF UNDERSIGNED IN THE EVENT UNDERSIGNED fails to comply or becomes disabled
and unable to comply with the provisions of this Agreement as to the quality or character of the service or time of performance, and the failure is not corrected within ten (10) days
after written notice by OWNER to UNDERSIGNED, OWNER may, at its sole discretion without prejudice to any other right or remedy: 7
III,I-I a. Terminate this Agreement and be relieved of the payment of any further consideration to UNDERSIGNED except for all work determined by OWNER to be satisfactorily completed
prior to termination. Payment for work satisfactorily completed shall be for actual costs, including reasonable salaries and travel expenses of UNDERSIGNED to and from meetings called
by OWNER, at which the UNDERSIGNED is required to attend, but shall not include any loss of profit of UNDERSIGNED. In the event, of such termination, OWNER may proceed to complete the
services in any manner deemed proper by OWNER, either by the use of its own forces or by resubletting to others. In either event, the UNDERSIGNED shall be liable for all costs in excess
of the total contract price under this Agreement incurred to complete the services herein provided for and the costs so incurred may be deducted and paid by the OWNER out of such monies
as may be due or that may thereafter become due to UNDERSIGNED under and by viliue of this Agreement. b. OWNER may, without terminating this Agreement or taking over the services, furnish
the necessary materials, equipment, supplies and/or help necessary to remedy the situation, at the expense of the UNDERSIGNED. SECTION 14· ADJUSTMENTS IN SERVICES No claims for extra
services, additional services or changes in the services will be made by UNDERSIGNED without a written agreement with OWNER prior to the performance of such services. SECTION 15· EXECUTION
BECOMES EFFECTIVE This Agreement will be effective upon execution of the contract by and between UNDERSIGNED and OWNER. SECTION 16 • AGREEMENT AMENDMENTS This Agreement together with
Exhibit A, Exhibit 8, Exhibit C and Exhibit 0 attached hereto contains the entire understanding of the parties with respect to the subject matter thereof and there are no oral understandings,
statements or stipulations bearing upon the meaning or effect of this Agreement which have not _been incorporated herein. 8
r· ii rII Exhibit E and Exhibit F, summary of cost and Billing rates for Services During Construction, will be included as Amendments to the Contract upon negotiation of the cost of
these services upon completion of Design Services and when executed and attached hereto. This Agreement may only be modified, amended, supplemented or waived by a written instrument
execute by the parties except as may be otherwise provided therein. SECTION 17 • WRITTEN NOTICES All notices, demands and communications hereunder shall be in writing and may be serviced
or delivered personally upon the party for whom intended, or mailed to 􀁴􀁾􀁬􀁥 party for whom intended at the address set forth on the signature page of this Agreement. The address
of a party may be changed by notice given pursuant to this Section. SECTION 18· GENDER AND NUMBER The use of any gender in this Agreement shall be applicable to all genders, and the
use of singular number shall include the plural and conversely. 9
rI IN WITNESS WHEREOF, the parties hereto have executed this Agreement on this the day of , 19---i\ I .' 'I OWNER: City of Farmers Branch, Texas By: Richard L. Escalante City Manager
P.O. Box 819010 Farmers Branch, Texas 75381-9010 Witness: City Secretary Approved as to Form: City Attorney 10 UNDERSIGNED: By:-----------Witness:
II.tII . EXHIBIT "A" SCOPE OF SERVICES FOR ENGINEERING DESIGN 􀁾􀀢􀀭􀁉􀀮􀁉􀁯􀁬􀁌􀀮􀀮􀀮􀀮􀁬􀀮􀁬􀀮􀁬􀀧􀁾􀁾􀁾􀁾􀀢􀀢􀀢􀀢􀀢􀀢􀀢􀀢􀀢􀀧􀀭􀁉􀁗􀀮􀀮􀂣􀀺􀁬􀁁􀁾􀁲􀁥􀁾􀁥􀀺􀀺􀀮􀀮􀀡􀀮􀀮􀁊􀁭􀁌􀀡􀀮􀁬􀁥􀀺􀀡􀀮􀀡􀀮􀁮􀁾�
�(the "Agreement") entered into by and between th CITY OF FARMERS BRANCH, TEXAS, a municipal corporation, hereinafter referred to as "City", and CONSOER TOWNSEND & ASSOCIATES, INC.,
hereinafter referred to as "Engineer", on , 19_ and sets forth certain terms, conditions and provisions of the Agreement. Final design includes Special Services which are included in
Exhibit "A" as Section B-1 thru B-4. A. FINAL DESIGN 1. Upon notice to proceed meeting with owner to review Preliminary Report and establish a schedule for review and monthly progress
meetings. 2. Establisrl the route and parameters of the detailed topographic survey and complete surveys using Datum and Bench Marks established in Preliminary Report. The detailed scope
of the topographic surveys is set forth in Special Services. 3. Conduct field land surveys necessary to prepare plats and legal descriptions of all permanent and temporary easements
along the route of the proposed interceptor. The detailed scope of the land surveys is set forth in Special Services. f-Ii . 4. Prepare final design geotechnical report supplementing
the soil report completed during the preliminary design phase. Also pumping tests and an Environmental water quality assessment will be completed in connection with the Geotechnical
Report. The detailed scope of final geotechnical report is set forth in Special Services. Ii 5. Plans will be prepared on 24-inch by 36-inch plan and profile, sheets of a scale of 1"
= 20' in plan view and 1" = 5' in the profile vertical scale. Plans will be prepared using CADD method. 1
6. Plans will include a cover sheet, a location sheet, traffic control sheets, plan and profile sheets, detail sheets, construction notes and legend sheets and standard detail sheets.
All sheets will be designed and sealed by a engineer registered in the state of Texas. Prepare contract documents including notice to bidders, proposal, special instructions to bidders,
contract conditions, special provisions, and project specifications using the CSI standard specifications, and City of Farmers Branch Standard Documents. Prepare the documents required
to obtain approval of all governmental authorities having jurisdiction over the design and/or operation of the Project and all public and private utilities including license agreements
to cross railroad property and pipeline transmission companies affected by the Project. Submit plans or agreements for signatures of representatives of such governmental authorities
and public utilities; and City officials. 7. I 7 ilI 8. 9. Design the Project in compliance with the the requirements of all applicable local, state and federal laws, codes and regulations,
make all revisions to the plans, specifications and other contract documents necessary to provide clarifications or to correct discrepancies. The plans and specifications shall conform
to all applicable federal and state regulations. 10. Deliver to the Cities five copies of preliminary plans at the 50% completion stage for their review and at the 90% and 100% completion
stages of Final Design a detailed cost estimate and five (5) copies of all the reports, recommendations, analyses, specifications, plans and drawings (including working drawings) or
as may be modified by Exhibit "A", Scope of Services. 2
II _ '-It 11. Assist the Cities in securing bids for the construction of the Project based upon the construction documents; attend prebid conferences; assist the Cities in evaluating
the bid proposals; prepare tabulations of bids received; and furnish the City 20 copies of the bid tabulation and a written recommendation for the award of a construction contract for
the project; and 30 sets of plans and specifications for bidding purposes. 12. Issue all required addenda to revise the plans, specifications and other contract documents in order to
(i) provide clarifications; (ii) correct discrepancies; (iii) correct errors and/or omissions; or (iv) reflect changes in design requirements and/or field conditions. B. SPECIAL SERVICES
-_.----------,.--􀀭􀀭􀀭􀀭􀁾􀀭􀀭􀀭􀀬􀀬􀀭􀀭􀀬􀀭􀀭􀀭 Surveying Perform field surveys and provide office support relative to surveying required to obtain horizontal and vertical data along
the proposed interceptor sewer line, prepare temporary and permanent easements, and to prepare a working plan layout on CADD. Specific tasks are as follows: rr( a. Horizontal Control
-Establish a baseline as approved 􀁢􀁾􀁯􀁮 a location near the centerline of the proposed interceptor sewer. A representative from CT&A will assist Lichliter, Jameson & Associates in
identification of the shaft locations (PI's) on the baseline. The baseline will be staked at 100' station intervals. PI's will be referenced with points outside the construction area
for re-establishment during construction using Aerial and Field Surveys. 􀁾 i· i,. \ b. Topography -Obtain complete planimetric topography with ties to streets, buildings, trees, utilities,
etc. Where sewer is in public R.O.W. the topography will be obtained from right of way to right of way plus an additional 35 feet or the distance necessary to locate the nearest dwelling
units which ever is smaller. Where sewer is in public or private property the topography will be \􀀮􀁾 obtained 75 feet on each side of the 􀁣􀁥􀁮􀁴􀁥􀁲􀁬􀁩􀁾􀀮􀁥 􀁏􀁦􀁟􀁾􀁾􀁰􀁯􀁳􀁥􀁤
sewer. This topo ---------------3
II2. will be obtained from ROW to ROW or for a width of 150' (75' each side of the baseline) when on new location. Invert elevations of underground utilities will be obtained where accessible.
Elevations will be obtained along utilities at locations probed or uncovered by utility companies. All survey data will be 􀁇􀁩􀀹􀁬􀁬􀁩􀁺􀁥􀁾􀁾􀀩􀁭 discs for CADD Drafting. '7 c. Profiles
and Cross Sections -Obtain elevations along the baseline at 100' station intervals. At creek, street, railroad, and highway crossings, obtain additional cross sections as appropriate
to represent the surface. At shaft locations, establish a 20' grid for a widtll of approximately 60' x 80' and obtain elevations on the grid points. d. ROW/Easements -Researcrl property
information (plats, right of way plans, metes & bounds descriptions). Tie property corners, fences, etc. to define the existing street right of way. Prepare a working sketch of existing
street right of way and properties which are crossed by the interceptor sewer line. Perform boundary analysis and computations to define the permanent easements as required for the line
and temporary easements at shaft locations. Prepare individual plats and metes and bounds descriptions for each easement. Stake 􀁾􀁾􀁏􀁦 the easements in a semi-permanent manner as required
by the L/Geotechnical Investigations Perform final geotechnical services to provide soil borings, tests and reports in accordance with the following specific tasks: a. Test borings will
be drilled at approXimately 500-feet intervals along the recommended alignment to depths below the proposed sewer invert. b. A total of 37 borings to total depths of 25 to 100 feet are
proposed as summarized in Table 1. Boring logs and related information from the preliminary geotechnical report will be used to fill in the information base along the alignment. 4
c. Cohesive soils will be sampled with thin-walled tube samplers. Standard penetrations tests will be performed on very sandy or cohesionless soils. The sampling intervals will be at
each change in material or a maximum of five feet. The unweathered Eagle Ford Shale will be continuously cored witt"l double-tube core barrels and appropriate bits. All samples will
be extruded in the field and packaged to protect them from disturbance and preserve their insitu moisture content. IiI II:" I d. Field permeability tests by the pressure packer method
will be performed at selected locations in the shale bedrock to evaluate in-situ permeability. Smalldiameter (2-inch PVC) groundwater observations wells will be installed at selected
locations, primarily in the overburden soils, for long-term groundwater level measurements. Field permeability tests by .the bailing and recovery method will be performed in these observation
wells to evaluate in-situ permeability. e. All borings will be grouted following completion of drilling. f. An experienced field geologist will be assigned to each drilling rig to log
the borings, perform field t6StS, assist in access and utility clearances at boring sites, and perform related duties. i " ! g. Ground surface elevations and locations will be provided
for each of the test borings (final and preliminary). h. Laboratory tests will be performed on representative samples to establish the pertinent engineering properties of the various
soil and rock strata. For soil samples, the following tests are anticipated: Natural moisture content Dry unit weight Atterberg limits and linear shrinkage Grain-size analysis 5
IIr! i. Unconfined compression Triaxial shear Direct shear Absorption swell For rock core samples, the following tests are anticipated: Natural moisture content Dry unit weight Unconfined
compression Triaxial compression Absorption swell Atterberg limits These tests will be performed in general accordance with ASTM and IRSM methods. It is also proposed to perform a limited
program of special tests to further evaluate the rock durability, hardness, and mineralogy. Additional types of tests for both soil and rock samples may be performed depending on conditions
encountered. The results of all field and laboratory studies will be compiled into an engineering report with Southwestern Laboratories (SwL) comments and recommendations on various
appropriate design parameters. These will include, as a minimum, the following: IIf' I . ooooo Test boring logsand discussion of soil and rock stratigraphy Interpretive subsurface profile
along the alignment Discussion df geologic. and hydrogeologic conditions including groundwater levels Laboratory test results and discussion of engineering properties of soil and rock
materials. Geotechnical engineering comments and recommendations, including 6
[J,I ( j. -dewatering (open cut, shafts, and tunnel) -soil bearing and settlement in cut and cover segment -pipe bedding and backfill -design parameters for excavation support -cut and
cover excavation slopes -estimated ground movements -monitoring and instrumentation Field pumping tests will be performed to provide more in-depth measurements of the in-situ permeability
characteristics of the overburden soils, at three locations. At each location, this will require installation of a 4-inch diameter PVC pumping well and two nearby 2-inch diameter PVC
observation wells or piezometers. The larger well will be pumped for a period of 12-hours with observations of drawdown levels in the pumping well, and the drawdown wells before, during,
and following 􀁴􀁾􀁬􀁥 pumping period. The pumping flow rate will also be monitored. The test results would then be analyzed to obtain coefficients of permeability, transmissivity, and
related geohydrologic information at each of the test sites. k. Preliminary Environmental and Water Quality Assessment will be prepared to . assess the potential for environmental liabilities
associated with past or current practices along the alignment, and include the following tasks: II" (1) Determine Existing Conditions Along Alignment A site visit will be conducted to
observe surficial evidence of environmental impairment. The SwL staff will inspect the alignment and adjacent properties for the presence of the underground storage tanks, chemical stains,
stressed vegetation, land scars, or obvious evidence of improper use or disposal of toxic or hazardous materials. Right of entry will be provided by the Cities. 7
rI. i·. ri i\. (2) Review History The history of the alignment will be reviewed by utilizing data such as aerial photographs, inquiries of persons familiar with adjacentsites, and possibly,
property chain-of-title. The surface conditions and surrounding land-use will be examined for previous activities that may have affected the environmental conditions. (3) Regulatory
Agency Inquiry Inquiries will be made to local, state, and federal regulatory agencies to determine whether or not noncompliance citations or violations have been issued in the past.
Examples of regulatory agencies include, the Texas Water Commission (TWC), city or county health departments, air quality and water quality departments, and the Environmental Protection
Agency (EPA). (4) Groundwater Sampling and Tests Based on these findings, sites will be selected for installation of 4-inch diameter groundwater monitor wells at three locations judged
to have the highest potential for the presence of hazardous substances. These wells will be installed using appropriate decontamination procedures for the drilling equipment and well
materials. Groundwater samples will then be obtained using appropriate sampling methods for water quality analysis. Parameters anticipated for such analyses include general groundwater
characterization (pH, total dissolved solids, specific conductance, etc.), total organic carbon, total petroleum hydrocarbons, total volatile hydrocarbons, purgeable aromatics, general
pesticides and herbicides, and other substances as may be indicated by the findings of the previous tests. (5) Data Evaluation and Final Report All pertinent data and observations will
be organized and presented in the final report. The report will include an opinion by SwL with regard to the potential for environmental concerns and liabilities, including the 8
II \ 3. presence of hazardous and toxic substances. Should the results of this study reveal evidence for the potential for environmental concerns, a recommendation will be made for additional
investigation activities, which commonly include additional soil borings, monitor wells, soil/waste sampling and laboratory testing, not included within the scope of this preliminary
study. Analytical Laboratory Testing A minimum of three analytical laboratory tests will be performed on the sanitary sewage which will be conveyed in the new sanitary interceptor tunnel.
The test will include the following analysis: PH, sulfates, sulfides, cyanide, volatile organics, semi-volatile organics, chlorides and methane. These tests will be conducted for use
iil analyzing corrosion protection necessary for the tunnel and appurtenances. 7 Flow Monitoring A maximum of two portable velocity flow monitors will be installed for a maximum six
week period to determine dry and wet weather flows tributary to the terminus of the new sanitary interceptor tunnel. '7 c>9
I:; I() EXHIBIT "B" /SCOPE OF SERVICES FOR SERVICES DURING CONSTRUCTION This is an Exhibit to and incorporated into the Agreement (the "Agreement") entered into by and between the CITY
OF FARMERS BRANCH, TEXAS, a municipal corporation, hereinafter referred to as "City", and CONSOER TOWNSEND & ASSOCIATES, INC., hereinafter referred to as "Engineer", on , 19_ and sets
forth certain terms, conditions and provisions of the Agreement. The Engineer shall provide professional services during construction to assist in obtaining a complete Project in accordance
with the purpose and intent of the contract documents. Services During Construction shall include, but not be limited to, the following: 1. Participate in pre-construction conferences
and assist with the execution of a contract between the City and the successful bidder; rI, ! 2. Provide a full tirne on site resident engineer and assistant field engineers as required
to administer construction contracts and prepare monthly progress reports, minutes of meetings, daily diaries, review and monitor contractor's CPM schedule adherence and project progress,
and check and recommend approval of contractors pay estimates, and provide daily on site construction inspection for conformance with plans and specifications, including reporting and
recommendations to Owner. However, neither Consoer, Townsend & Associates or Jay Dee Contractors are responsible for the means or methods employed by the Contractor in the process of
his work, or have the authority to stop the Contractor's work. 3. Jay Dee Contractors Inc. will assist Consoer Townsend & Associates during construction Phase Services and will provide
at least one full time representative as part of the onsite personnel referred to in Paragraph 2 above. 10
4. \ I( 5. I\ Both Consoer Townsend and Jay Dee Contractors will assign a project manager to interface between the contractor, the cities and resident engineers and attend monthly progress
meetings and any other meetings as required. Review, prepare, make recommendations, execute, and administer contract changes including field change orders and engineering design changes.
Review and recommend approval of contractor's submittals and schedules including shop drawings and coordinate during construction to minimize the impact of traffic disruption or dust
conditions to the local populace. t' 6. Arrange for, and coordinate as required, all independent testing or laboratory services necessary for the project and review and administer, as
needed, in accordance with the test results. 7. Coordinate with contractor, utility companies and Owners Public Works Department to minimize disruption of utilities caused by or required
by construction operations. 8. Conduct a final inspection and prepare final punch list to be be approved by Owner prior to approval of final pay estimate. Conduct a final inspection
with Owner after completion of punch list. /" IIfI' I:I 9. Provide two sets of reproducible record prints of drawings, which shall become the property of the cities corrected to show
significant changes made in the work during the construction of the Project. Such corrections shall be based upon" as-built" prints, drawings, field sketches and other data furnished
to the Engineer by the City and the contractor, upon change ordersissued during construction, and upon on-site observations of the Engineer. 11
rI\ .1... Ic. 10. No less than 30 days and no more than 45 days before the expiration of the guarantee period established by the construction contract documents, the Engineer, in company
with the cities, shall inspect the construction site. Within fourteen days after such inspection the Engineer shall furnish the cities with a written report enumerating items which require
repair or replacement as provided under the guarantee and warranty provisions of the contract documents; 12
\: I EXHIBIT "C" PAYMENT AND BILLING RATES This is an Exhibit to and incorporated into the Agreement (the "Agreement") entered into by and between the CITY OF FARMERS BRANCH, TEXAS,
a municipal corporation, hereinafter referred to as "City", and CONSOER, TOWNSEND & ASSOCIATES, INC., fl hereinafter referred to as "Engineer", on , 19_ I. PAYMENT ( ." l.. Payment will
be based on base salary of staff members involved in productive work on the project times a multiplier of 3.10 with maximum fees set forth in Exhibit "0". I,\ !-II. BILLING RATES Average
billing rates for Consoer, Townsend & Associates, Inc. and the subcontractor's Lichliter Jameson for surveying services; Southwestern Laboratories for geotechnical work and Jay Dee Contractors
for design services are as follows: A. CONSOER TOWNSEND I· i\. Classification Senior Advisor Project Manager Project Engineer Sr. Civil Engineer Civil Engineer Structural Engineer CAD
Technician Technician 13 Average Billing Rate Per Hour $ 110.00 110.00 84.00 78.00 65.00 81.00 56.00 50.00
(Exhibit "C" Continued) B. JAY DEE CONTRACTORS Classification Sr. Design Engineer Sr. Estimator Staff Estimator C. SOUTHWESTERN LABORATORIES (See Following Pages) D. LlCHLITER/JAMESON
& ASSOCIATES, INC. (See Following Pages) 14 Average Billing Rate Per Hour $ 107.00 60.00 45.00
III EXHIBIT "G" Lichliter Jameson & Associates, Inc. AVERAGE RATE SCHEDULE 15
\:1I !EXHIBIT "e" SOUTHWESTERN LABORATORIES ENGrnEERS I\ staff 􀁾􀁩􀁮􀁥􀁥􀁲 Project 􀁾􀁩􀁮􀁥􀁥􀁲 senior 􀁾􀁩􀁮􀁥􀁥􀁲 Principal 􀁾􀁩􀁮􀁥􀁥􀁲 Expert witness GEDI.(X;Isr (Grade I am II)---------(Grade
III am IV)--------(Grade V am VI)--------'--(Grade VII am VIII)-------(4 hour minimum)----------$ 60.00 $ 75.00 $ 95.00 $105.00 $160.00 II \' staff Geolcqist,------------------Project
Geolcqb"t.-----------------senior 􀁇􀁥􀁯􀁬􀁣􀁱􀁩􀁳􀁴􀀬􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀁾􀀭􀀭􀀭􀀭􀀭 DRAFTSMAN TEnINICIANS Technician in Trai.ni.n;J·--------------􀁾􀁩􀁮􀁥􀁥􀁲􀁩􀁮􀁊Teclmicianl----:------------
Direct Costs at <X>St plus 15. percent $ 45.00 $ 55.00 $ 85.00 $ 35.00 $ 25.00 $ 35.00 $ 30.00 1. i L--SoOU THWE.S TERN L'" BORA TORIE!!. ----'
EXHIBIT "e" SOIFIJJIE OF SERVIc::ES AND FEES N:JRIH TEXAS GEIJIHJ]NICAL􀁾DIVISICN IABJRA'IDRY 'I'ESl'lNG .JANUARY 1991 I. \ I I IDENI'IFTCATION AND ClASSIFICATION TESTS 1. Liquid and
Plastic Limits 2. Hydrorreter Analyses, includ.i.nq Sieve 3. Sieve Analyses through No. 200 Sieve 4. Percent Passing No. 200 Sieve PHYSICAL TESI'S 5. Moisture COntent 6. Density and
Moisture COntent 7. Maxin1um and Minimum Density 8. Specific Gravity 9. Pel:'1ooability Fixed Wall Pel:'1ooability Flex Wall 10 organic content STRENGIH AND <X>MPRFSSmTI...ITY TESTS
11. Unconfined. compression-roaxiImnn stress sail (with Moisture-density) Rock 12. Triaxial Shear 2 inch and 3 inch diameter specimens Unconsolidated -urrlrained Per specimen Multiple
stage Consolidated-Undrained with Pore Pressure Per specimen· Multiple stage (3-points) stress-strain curves for above tests Per specimen 13. Direct Shear -Per specimen Unconsolidated
-Urrlrained Consolidated -Urrlraine:i Consolidated -Drained Residual strength determination in conjunction with above tests -Add Page 1 of 2 UNIT PRICES $ 39.50 $ 75.00 $ 26.00 $ 15.50
$ 3.00 $ 15.50 $ 185.00 $ 46.75 $ 75.00 $ 175.00 $ 10.00 $ 27.50 $ 27.50 $ 40.00 $ 100.00 $ 140.00 $ 340.00 $ 30.00 $ 45.00 $ 85.00 $ 135.00 $ 115.00 L----SOI.J.T HwES T .E__RN L A BQ.J3
A TO RI E ..S. ----=::'
'IIr' !I\\ . 'I EXHIBIT "e" 􀁾OF 􀁓􀁅􀁒􀁖􀁉􀁾 AND FEES . H:RIH TEXAS GEDrEXmICAL􀁾DIVISICJl FIEnl SIIDIES .J1\NUARY 1991 MOBILIZATION AND DEM:>BILIZATION 1. Truck mounted drill rig,
water truck arrl crew'---($175.00 Minimum) 2. Pickup an:l 3-man crew (travel to/from site an:l office when equiprrent left at location on out-of-tcMn projects) 3. . SUl:sistence per
crew nenber'------------4. Mininu.nn drilling feeee--------------FIEID lliVESTIGATION $ 2.65/mi. $ 1. 25/mi. $ 60.00/day $500.00 5. Soil samples (ShEllby Tube samples in cohesive soils,.
2-inch split spoon samples in cohesive soils) a. rntennittent 2 or 3-inch di.aITeter 0-50 (sampled at 5' intervals $ 9.15/ft 50-100 (saropled at 5' intervals) $ 11. 60/ft. 100-200 (sampled
at 10'intervals) $ l6.80/ft. 200-300 (sampled at 20' intervals) $ 21.00/ft. r b. Continuous 2 or 3-inch dianeter \ 0-50. feet $ l6.80/ft. \ 50-100 feet $ 21.00/ft. ) c. Larger diameters
Quoted on request 6. Wash or auger borings without samples $ '5.00/ft. l 7. Unclisturl::ed orsplit-sp:xJn samples in wash \ or auger borings $ 31. SO/ea. 8. casing of boring through
overbJrden for soil sampling or rock coring $ 5.00/ft. Page 1 of 2 .l-__------: SOu THWESTERN L ABO RATORI ES -----'
EXHIBIT "e" 9. Rock coring (NX-size), continuous coring, plus bit costs a. carbide---------------------b. Diamond----------------------$14.95 $21.00 10. Equipnent rental plus bit costs
a. Two men, Mobil B-53---------------$136. SO/hr. 􀁾􀀮 I b. 'Ihree men, Failing 1250 (air), GD1000 (air) Mobil B-57------------------c. 'Ihree men, 01E 75 air combination.---------$150.00fhr.
$160.00fhr· 11. st:arrl-by of cre:w and equipment, including m:we time in excess of 30 minute per boring a. 'Ihree men, drilling equipment----------12. Rental equipment necessary to
gain access-------$130.00/hr, Cost +15% 13. Instrumentation (slope irrlicators, piezometers, etc.) a. Installation----------·-------Rig rental rate b. Materials (screen, pipe, inst.rLnnents)-------c.
Geologist or Engineer at rate listed in SChedule of Hourly fees for Personnel d. standard 2-inch standpipe obse:rvation wells----Cost +15% $ G.OO/ft. Cost +15% Cost +15% Cost +15% Rig
rental rate ---Rig rental rate ·----------------Quoted on request I 14. Drilling tools, casing and bits lost in hole "I 15. Pressure testing \"' 16. Resistivity SUrveys \ 17. Borehole
Grouting a. Equipment b. Materials 18. Rock Core Wcxxien Boxes Page 2 of 2 L----'SOU TH I/tI E '5 TERN L A.BO R A TO RI £5 -------'
EXHIBIT "e" ( . j IAH:>RNlORY TFSI'ING STRFNGlH AND CXX1PRESSIBILITY -Continued UNIT PRICE i 14. Consolidation $ 180.00 I\ 15. Al:sorption SWell Test $ 60.00 r Controlled Pressure SWell
$ 80.00 16. Preparation of rem:::>lded or compacted specimen for items above $ 20.00 17. Optimum Moisture -Density Relation staroard $ 135.00 \ Modified , $ 150.00 I! 18. california
Beari.rq Ratio (3 specimens) $ 415.00 19. LiIre stabilization L:llre/Atterberg series $ 160.00 LiIre/pH series $ 80.00 Optimum Moisture -Density/Line stabilized Soil 4-inch Mold $ 150.00
6-inch Mold $ 150.00 Optimum Moisture Density with strength tests -three lime contents $ 450.00 20. Dispersion Pinhole $ 115.00 crumb $ 21.00 J' ( Double Hydrometer $ 115.00 21. laboratory
Resistivity $ 35.00 I . III Page 2 of 2 L...-SOu T 1-4 V't ES TERN L A eo R A TOR IE S ------'
EXHIBIT "e" ANALYTICAL TESTING SANITARY INTERCEPTOR SEWER FARMERS BRANCH/ADDISON, TEXAS pH Sulfates Sulfides cyanide Volatile Organics Semi-Volatile organics Chlorides Methane Total
$ 5.00 ea. $ 20.00 ea. $ 25.00 ea. $ 25.00 ea. $ 225.00 ea. $ 575.00 ea. $ 20.00 ea. $ 50.00 ea. $945.00/sample Above series on five or more samples $875.00/sample. iI , ' !\ Sampling
Charge $45.00/hr. estimate maximum of 8 hours. April 17, 1991 For three sampling times L-sou THWES TERN L A eo RA TORI ES __----I
r, 􀁾 I CONSOER, TOWNSEND & ASSOCIATES, INC. INDIRECT COST'RATE SCHEDULE FOR PERIOD 10/1/90 -02/28/91 INDIRECT COSTS \\ Vacation Holiday Sick Leave Courtesy Severance FICA FUI SUI Wori<men's
Compensation Me9IC81jDentai ute/ACe/Disability/VIsion Employee Morale ESOP Beneflt Plans Administration Pension Bonus Tuition General and AdministratIVe Salaries Corporate, Development
Salaries Corporate Development Expenses Professional Services Auto Expense Travel and Meals Reproduetlon Telecommunication Postage Computer Relocation Professional Development Rent &
Utilities Equipment . Office Supplies Subscriptions &Dues Insurance Miscellaneous Taxes Recruitment OffIce Temps Building Maintenance Miscellaneous DeprecIation AECOM Allocation (Home
OffIOe G&A) $231.500 '175,880 83,396 27,672 5,490 2132,231 12,539 23,5n 36,387 132,624 32,365 10,309 3n,ooo 25,384 a2,500 125,000 7,773 482,591 517,455 378,995 117,028 ' 49,939 14,177
28,378 6:4.275 21,390 56,731 43,566 19,029 510,1'5 23,004 69,611 38,454 108,778 16,350 9,445 14,055 1,859 5,475 73,023 1S0.000 TOTAL INDIRECT COST POOL DIRECT SALARIES INDIRECT COST
RATE (A+ 6) Footnote: (A) $4,495,260 (B) , 2,583,607 175.35% The above listed expenses are audited annually In accordance with the applicable sections of the Standards for Audit of Government
OrganIzations, Programs, AetMtlea and Functions publIshed by the Comptroller General of the United States and generally accepted auditing standards. Cost allowabillty Is based upon Subpart
31 of the Federal Acquisition Regulations.
EXHIBIT "0" SUMMARY OF COSTS This is an exhibit to and incorporated into the Agreement (the "Agreement") entered into by and between the CITY OF FARMERS BRANCH, TEXAS, a municipal corporation,
hereinafter referred to as "City" and CONSOER, TOWNSEND & ASSOCIATES, INC., hereinafter referred to as "Engineer", on , 1991. II A. B. MAXIMUM FINAL DESIGN BASIC SERVICES COST BASIC
FINAL DESIGN SERVICES OTHER DIRECT COSTS: 1. Printing plans specifications @commercial invoice costs a. b. c. d. 5 sets for 50, 90 & 100 percent review 30 sets for bidding purposes 20
sets for regulatory & utility agencies Total costs $5,500 ......... (r'II\1f· 2. 3. A. Travel cost @commercial invoice cost @26 round trips CAD use costs @$10.00 per hour @1,384 hours
= Total other direct costs TOTAL MAXIMUM FINAL DESIGN BASIC SERVICES MAXIMUM SPECIAL SERVICES COST SUMMARY Surveying 16 $4,000 V' _$13,840 v 􀁾$631,324 J.,./' $92,896 J/
I\IIr\ !I j , \) B. C. D. E. Easement legal descriptions and plat preparation Geotechnical investigations Sanitary sewage analytical testing Flow metering TOTAL MAXIMUM SPECIAL SERVICES
TOTAL MAXIMUM COST FINAL DESIGN AND SPECIAL SERVICES COST 17 $49,408 v $183,500 􀁾 $3,195 $4.500 $333.499 $964.823
EXHIBIT "E" PAYMENT AND BILLING RATES FOR SERVICES DURING CONSTRUCTION This is an exhibit to and incorporated into the Agreement (the "Agreement") entered into by and between the CITY
OF FARMERS BRANCH, TEXAS, a municipal corporation, hereinafter referred to as "City" and CONSOER, TOWNSENI) & ASSOCIATES, INC., hereinafter referred to as "Engineer", on , 1991. I. PAYMENT
Payment will be based on actual salary of staff members involved in productive work on the project based on a salary multiplier to be negotiated with the owner upon the completion of
Final Design. II. BILLING RATES Billing rates will be based on the personnel assigned to the project upon the completion of Final Design and will also be based upon the salary multiplier
negotiated in Paragraph I -Payment -above. rIrI"I\I. 18
IIIII,. iI \l EXHIBIT "F" SUMMARY OF MAXIMUM COST FOR SERVICES DURING CONSTRUCTION This is an exhibit to and incorporated into the Agreement (the "Agreement") entered into by and between
the CITY OF FARMERS BRANCH, TEXAS, a municipal corporation, hereinafter referred to as "City" and CONSOER, TOWNSEND & ASSOCIATES, INC., hereinafter referred to as "Engineer", on ; 1991.
The Maximum Costs for Services During Construction will be negotiated with the owner upon completion of Final Design. 19
II I.' ( , II 􀀡􀁾􀁩􀁬 i i ! .' -.. II . f IJ ·Si\_NITARY SEWER 􀁆􀀱􀁉􀁾􀁏􀀢􀁖􀀭􀀧􀁍􀁏􀁎􀁬􀁲􀁬􀁾􀁏􀁒􀁉􀁎􀁇. 􀁬􀁾􀁴􀁉􀁎􀁾􀁜􀀧􀁌 REPORT Farmers Branch Creek Drainage Basin is CJ1lt'Fl
􀀨􀁪􀀩􀁾 􀁉􀁆􀁾􀁲􀁭􀀡􀁾􀁾􀁉􀁲􀁾 􀁬􀁂􀁉􀁴􀀧􀁳􀁵􀁲􀁬􀁬􀀨􀁾􀁾􀁩􀁬 " JEngineering Departnlerlt . . EO. 65043 .' Resolution #90-102 Septerrtber1990 J. r I I , IU ADS INC.
I 1 :1 I' i 1 1111 :1) il IJ 1 . JI] !J IJ I J SANITARY SEWER FLOW MONITORING FINAL REPORT Farmers Branch Creek Drainage Basin rea CnJty (Q)f 􀁊􀁆􀁾􀁊􀁲􀁭􀁾􀁊􀁲􀂧 􀁉􀁂􀁊􀁲􀁾􀁬􀁔􀁨􀁤􀁨
Engineering Department EO. 65043 Resolution #90-102 September 1990 ADS SERVICES, INC.
FLOW MONITORING EXECUTIVE· SUMMARY A. Background 1131333 10 10 13 13 13 13 13 14 14 14 107779 10 Average Daily Flow Peak Flow -Wet Weather Capacity Used -Wet Weather Wet Weather Peaking
Factor Dry Weather Peak Flow Capacity Used -Dry Weather Dry Weather Peaking Factor Pipeline Capacity Line Size Interceptor Slope Purpose of Study Study Area a. Drainage Basin Delineation
b. Meter Locations c. statistical Rainfall Variation Instrumentation/Field Methodology a. Description b. Pre-Installation Calibration c. Installation d. Monitoring e. Data Format f ..
Infiltration/Inflow Impact or Treatment Facilities 3. 1. 2. Conclusions and Recommendation overview Summary of Findings TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. DESCRIPTION B.
Flow Data Analysis C. B. A. I11 SECTION , I 1 ..􀁾 II 1111]11I]IJ i I..· I
11,11,t11I1 I']j I II I J i } ,. -"--.. FIGURE 1234 TABLE 12 APPENDIX Monitoring Site Locations Annual Precipitation Data Seasonal Probability of Intense Rainfall & Monthly Precipitation
Normals Typical Flow Meter Installation Rainfall Data Flow Monitoring Data Summary 4568 11 12
I. Ii 1. Executive Summary A. Overview The primary purpose of the Farmers Branch Creek flow monitoring study was to establish available interceptor sewer capacity east of Marsh Lane.
This information is required for the on-going interceptor sewer project. A total of 3 flow monitoring sites were selected and continuous recording flow meters were installed. Data collection
spanned approximately 30 days from July to August 1990. Rainfall data was recorded to obtain a correlation between dry and wet weather flows. B. Summary of Findings The three monitoring
sites showed no significant increases in flow during the rainfall events monitored. Dry weather capacity is adequate at sites 1 and 3 with 60% and 55% of total peak capacity used during
dry weather. During the rainfall events recorded, peak wet weather capacity utilized increased at these two sites to 61% and 58% respectively. Monitoring site 2; however, was found to
be at 100% capacity during dry weather and surcharges during peak dry weather periods. C. Conclusions and Recommendations Analysis of data obtained during the flow monitoring study combined
with observations and discussions have resulted in the following conclusions and recommendations. Conclusions o Wet weather inflow only marginally impacted the collection system capacity.
High intensity storm events may create a system response that (due to dry soil conditions in this study) was not observed. o The 21 inch interceptor east of Marsh Lane utilizes 60% of
its dry weather capacity. silt was noted in the pipeline which if removed would increase capacity slightly. o The 15 inch pipeline east of Midway Street utilizes 55% of its dry weather
capacity. Weekend flows are approximately half those of weekdays. o The 8 inch pipeline west of Alpha Road occasionally exceeds its dry weather capacity during normal dry weather conditions.
1
Recommendations o Evaluate future flows to determine loadings on the interceptors and adequacy based on land use and ultimate development. o Annually inspect and clean interceptors that
are silting to restore capacity. o Evaluate all new sewer design to ensure adequate velocities are present to prevent silting. o Initiate plans to provide relief capacity to the 8 inch
(RH02 Monitoring Site) pipeline. o Initiate plans to address future hydraulic loadings on the Farmers Branch interceptor east of Marsh Lane due to current dry weather flows utilizing
approximately 60% of the interceptor capacity.
II. Flow Monitoring A. Background 1 ,1I II r l! I I]JI 1. Purpose of study The primary purpose for the sanitary sewer flow monitoring investigation survey was to establish sewage flows
and line capacity being utilized. These findings and recommendations will be instrumental in subsequent sanitary sewer system improvements made by the city of Farmers Branch. 2. study
Area a. Drainage Basin Delineation The Farmers Branch sanitary sewer system investigated during this study consists primarily of the eastern Farmers Branch Creek interceptor. This study
was limited in scope and does not include the entire Farmers Branch collection system. b. Meter Locations The Farmers Branch Engineering Department made the preliminary selection of
meter locations for this study. The ADS Services, Inc. field crew examined each location and determined its adequacy from a hydraulic and flow data collection standpoint. A total of
3 flow meter locations were defined (see Figure 1). Supplemental daily rainfall data was supplied by a rain gauge that recorded rainfall events intensity and duration. c. statistical
Rainfall variation Mean annual precipitation for the study area as defined by the u.s. Department of Agriculture Soil Conservation Service is approximately 35 inches. Annual average
precipitation recorded by NOAA is provided in Figure 2. There are two peak rainfall periods occurring annually in May and September with the former being dominant. Figure 3 shows the
percent probability for the study area receiving a rainfall of given return period with a six hour duration for any month. Rainfall data collected from the study area over the recording
period showed, as would be expected, that high intensity short term rainfall (local thunderstorms) was more probable than that of low intensity long term (regional) rainfall. This type
of weather pattern will result in rapid runoff of storm water with the potential for relatively high peak inflow rates. 3
I 1 I' Figure 1 RH03-_. '--􀀮􀁟􀀮􀁾 , I 1 􀁟􀀮􀁟􀁾􀀺􀀮􀀭 1 MONITORING LOCATION INTERCEPTOR LINE SLOPE SITE SIZE % RH01 Marsh Lane at Farmers Branch Creek 21" 0.23% RH02 Creek Easement
West of Alpha Road 8" 1.30% RH03 Dooley at Farmers Branch Creek 15" 0.50% 4
.. Figure 2 ANNUAL PRECIPITATION DATA FARMERS BRANCH 35 inches per year 80 :50-Ridge line "Sierra -Cascade" system 40 to".1 dO "" >0 Average Annual Precipitation (inches) 5 40
􀁾􀁁􀁒􀁔 8 I I ''\ , 1\ I 1\ 1/, II r r'\ f'..l--'" ", \ \ 1/' , I //1'-f--' 1\ 􀁾 VI) \ VV /\ v' \ " I /\. -1I V H\ H> /I '-.. I "In 20 .. ,J'III"M.I.I&IO"O .0 Month 6 FIGURE 3 SEASONAL
PROBABILITY OF INTENSE RAINFALL AND MONTHLY PRECIPITATION NORMALS Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Precipitation Normals Dallas, Texas 11 I\ 1 I -r􀀮􀁾 ! 1 l I , I !,
8 J 7 11l 6 I1l I .c I (J i .=: 5 aI 4 I-I -t: I I aI 3 0: 􀁾 2 if -.c t: I . a 1 ::E 1----I 0 II I I I ! I I J i. J IJ
11 \' 'I 1 3. Instrumentation/Methodology a. Description The Quadrascan 1500 flow monitor manufactured by ADS Services, Inc. was used to measure open channel flow in this project. The
monitoring unit has three basic components: (1) sensors that measure depth of flow and velocity; (2) a microprocessor; (3) computer memory chips that store the data; and a crystal clock
to synchronize sensor recordings. 7 c. Installation Three meters were installed in the Farmers Branch sanitary sewer system during the period of JUly 4 through August 6, 1990. After
the installation was completed the field crew test fired the sensors to ensure that the monitor was working properly and verified that the monitor clock was synchronized with the project
master clock. readings at minutes. A purpose of After the site investigations and monitor calibrations were completed, monitoring equipment was installed. The depth and velocity sensors
were mounted on an expandable aluminum ring and installed approximately one to two pipe diameters diameters upstream of the manhole invert in the incoming sewer pipe. Figure 4 presents
a typical installation. b. Pre-Installation Calibration Calibration of all equipment was performed before installations. The purpose of the calibration was to assure sensor accuracy.
The sensors were placed in a hydraulic testing tank and the output signals were compared to the actual readings of known depths. Each monitor stores depth of flow and velocity user-defined
intervals, typically every 5 or 15 portable lap-top computer was used for the retrieving data from the monitor. j Ii II f II lJ", t I1I II r J
(1 I 1 [1 \1 II (I (I I I i I II \I (I, J \ J !] ,i'J [J lJ [J FIGURE 4 TYPICAL FLOW METER INSTALLATION . . Monitor· . Existing pipe 8
11 \11, (I I-I l. I1II] r ] l .. r '\ 'I I J (J LJ IJ \ . d. Monitoring During the monitoring period, field crews visited the metering location approximately once a week to upload the
data and document the field conditions. The following steps were taken to assure the integrity of the data collected at each metering location: Quality Assurance -The quality of the
field data was analyzed throughout the project. Regular field visits to each Flow Monitor include the following tests: o Measure Power Supply: Power levels are recorded and power supplies
replaced, if necessary. The monitor is powered by a dry cell battery pack. A lithium battery on the Processor Board provides back-lip power to the memory, which allows the primary battery
to be replaced without the loss of data. o verify Depth of Flow and velocity: During the site visit, a field crew member descended the manhole to measure the depth and velocity of flow
at the sensor. The independent manual readings were compared to the monitor readings to confirm confirm monitor accuracy. o Measure silt Level: The field crew member measured and recorded
the depth of the silt at the sensor. o Perform Hydraulic Calibration: Flows were quantified by velocity and/or weir test. o Upload Raw Data: Raw data was uploaded and reviewed for comparison
with previous data. o Confirm Monitor Synchronization: The field crew checked the flow monitor's timing against the project master clock to ensure that all readings were taken simultaneously.
Thus, a "hydraulic snapshot" of the flows in the system was obtained. o Review Raw Data: After the data was collected, it was reviewed on-site by the field crew to verify its integrity.
All readings were reviewed for consistency and screened for deviations in the flow patterns which would indicate system anomalies or equipment failure.9
\1 e. Data Format As described earlier, the ADS 1500 velocity/depth recorder samples the velocity and depth every 15 minutes. Flow values for each meter location for each day's recording
are presented in Appendix A. Also included are the daily maximum, minimum and average flow values. The tabulated flow data was used to prepare hourly wastewater flow hydrographs. Rainfall
data is presented in Table 1. It is worthy to note how some storm events were quite localized in the study area. Such localized storm events have limited value during the analysis of
the collection system. In addition, dry soil conditions may have prevented activation of inflow sources. f. Infiltration/Inflow Impact on Treatment Facilities ['JJj !J iJ Ij,J Normal
dry weather wastewater flows are currently transported and treated without bypass or overflows. The effect of storm events on the collection and treatment system are directly related
to the storm occurrence intensity and duration. High intensity rainfall will create elevated peak hydraulic loads on the interceptor while low intensity rainfall, with long duration,
will generally have less impact. The volume of inflow to be transported and ultimately treated will be a function of the storm intensity-duration and the types of defects contributing
to the extraneous flows. B. Flow Data Analysis A summary of flow monitoring data is presented in Table 2. Data is presented for each of the flow monitoring sites within the Study Area.
A summary of flow data is presented in the Appendix along with wastewater flow hydrographs. 1. Average Daily Flow The average daily flow was determined for each monitoring site utilizing
dry weather recorded data. Those days influenced by rainfall were omitted from the determination. Dry weather days used during this analysis were July 4-11, 21, 27, 28, 31, and August
1, 1990. 2. Peak Flow -Wet Weather Peak wet weather flow rates were obtained from analysis of rainfall data. Data presented in Figure 2 indicates little increase in flows due to rainfall;
however, due to the dry soil conditions during the monitoring period, the full impact of wet weather induced inflow may not have been fully evaluated. 10
IIII ri I ( ] jJ lJ (-J [JJ TABLE 1 Recorded Rainfall Data TOTAL RAINFALL Maximum 15 Minute DATE (Inches) Intensity (Inches) 7-12 .69 .38 7-16 .19 .14 7-17 .08 .02 7-18 1. 01 .45 7-22
.13 .10 7-23 .16 .11 7-24 .14 .11 7-25 .03 .03 7-29 .68 .33 8-02 .15 .05 8-03 .58 .57 8-04 .53 .12 8-05 .38 .09 11
DESCRIPTION FLOW MONITORING SITE RH01 RH02 RH03 1. AVERAGE DAILY FLOW 1.962 0.457 1.016 (mad) 2. PEAK FLOW-WET (mgd) 3.197 -0.634/1.819 3. CAPACITY USED-WET (%) 61% 70-100% 58% 4. PEAKING
FACTOR-WET 1.6 1.4 1.8 5. DRY WEATHER PEAK FLOW 3.137 0.632/1.728 (m ad) 6. CAPACITY USED-DRY (%) 60% 66%-55% -,-7. PEAKING FACTOR-DRY 1.6 1.4 1.7 8. PIPELINE CAPACITY 5.227 0.947 3.156
(m Qd) 9. LINE SIZE (inches) 21 8 15 -" 􀀮􀁾􀀭􀁾􀀭􀀭 ( 10. INTERCEPTOR SLOPE 0.23% 1.30% 0.50% --i .. II I ' I I [I \1 I! I \J \ III1 (I] 􀁾 'l] i J (oJ \J lj }',;' '.J TABLE 2 FLOW
MONITORING DATA SUMMARY City of Farmers Branch Dry Days -July 4-11,21,27,28,31, August 1, 1990 12 ADS SERVICES, INC.
3. Capacity Used -Wet Weather 1 (I1 !> I. lJ tj \ j I j IJ IJ 1.'1 :.J II I I I ":-I A comparison of the pipeline peak capacity and the peak flow rate observed establishes the percentage
of line capacity utilized during the rainfall events recorded during the monitoring. These values are based on the interceptor line sizes.4. Wet Weather Peaking Factor The wet weather
peaking factor, found in Table 2, is the quotient of the peak hourly flow during a rainfall event divided by the average dry weather flow at the same hour. This parameter is not necessarily
determined at the maximum total flow since maximum inflow could occur at a time of low base flow (2:00-4:00 a.m.) but still be less than the total flow (7:00-10:00 a.m.) when base flow
is maximum. A comparison of wet weather peaking factors and dry weather peaking factors provide insight into the degree of wet weather inflow. Pumping stations, long interceptors, and
industrial discharges can each affect the peaking factor. 5. Dry Weather Peak Flow Peak base base line flows in the study area usually occur in late morning. Percentage of industrial
contribution and time of the week will have considerable influence on the magnitude and time of peak dry weather flows. Table 2 presents dry weather peak flow which is the highest dry
weather flow observed during the study. 6. Capacity Used -Dry Weather Presented is a summary of the percentage of pipeline capacity used during peak dry weather conditions. This value
is the ratio of the peak dry weather flow rate observed and the pipeline maximum capacity. 7. Dry Weather Peaking Factor The dry weather peaking factors found in Table 2 is the quotient
of the dry weather peak flow divided by the average daily flow during dry weather. It is a measure of the ratio between maximum daily flow vs. average daily flow and defines the stability
or consistency of flow in a sub-basin. The closer this factor is to 1.0 the less hour to hour flow variation exists. Larger dry weather peaking factors could imply relative high-volume,
short-term industrial users or in some instances the influence of pumping stations. 13
.II I I ii 8. Pipeline Capacity Each interceptor has an estimated theoretical maximum flow capacity as defined by the main collection line. It is a function of line size, slope, and
coefficient of roughness. The theoretical capacity is an estimate based on the best available information. The equivalent capacity presented in Table 2 is based on actual flow measurements
from velocity/depth recordings at known depth of flow. Using the Manning equation the equivalent line capacity or full pipe flow was determined at each monitored location. Obstructions
downstream and/or debris in the line can cause reduced theoretical capacity values. Monitoring site RH01 for example was observed to have 4 inches of silt build up which reduces capacity
to the value presented in Table 2. Table 1 displays the diameter of the main collection line at the point of monitoring. Line sizes monitored were 8, 24, and 30 inches in diameter.The repetitive interceptor sizes are 8, 15, and 21 inches in diameter. The discrepancy is due to increased pipeline diameter at sites RH01 and RH03 where the interceptor crosses under
major streets. The capacity analysis preferred is based on the interceptor sizes. I I· . \ \ Lj! I I 9. Line Size \ I· i 10. Interceptor Slope The slope of the interceptor was obtained
from as-built plans and was used to establish the theoretical capacity of the interceptor. f 1 [] 1 j ('j . I i 􀁉􀁾 ! 􀁾 14 􀁬􀁾 I I ,J
{ .-. 􀁾 i ' ; t , I ,I ,, • I 1--·: 􀁾 j( \ i ' '; 􀀮􀁾 ;' 􀁾 I I I , :! ,,. 􀁾􀀮 , I ; : i ' , I. ii 􀀮􀁾 "I I -i􀁾
iI l' I!L (! L' jLIiL f' ,I ) . lr'. jL r' .-)LIj !l... !; LLL Site RH01 Flow Monitoring Data and Hydrographs
􀁁􀁄􀁾 150o .--' Site Report Manhole I AN Wonitor IJ Services, Inc. RHOI 8060 R("''''RD Ir roUND -(Zo::D 883-'= TX }flU1le:BF V-Sensor 1/Bat Serial # Pre:lS. I-dueer fI Prtllecl/Pbaae:
Farmal"3 Branch. D4le: IAddre••!lDcatloa.: On east easement of Yarsh Lane 0 Farmers 2605 04a902-A Din. to X-ducer Phy:tll.cal Otr.el DlamAot..l' Branch Creek 3<J" Access: INSTAlLATION
Pressure and Velocity C -J .c c: VI ...J '-:sd:: .cIII Cf'ei'kJ. '-d boncn :L fo.f'l'Iers llr ,-<:9 RHOl /SAFETY Branch creel< FarMers 14,4' Wanhole Deoth: 􀁾 Q9 RHOl Park on easement
LBJ Freeway Traffic: -GIl.:!J 0 Investigalion: li£llnhole Condilion: Good, brick M/H, N t No steps Site Rain Gauge Zone: RGOI I 􀁾 Drop/rail: 30" [nstaU qC: Date: lat. : Corrune n ts:
I I 30" 30" Pice Type: I __.10 '--J 􀁾􀀩 􀁾 --Nt BACKUP Y N ? DISTAl':CE .-:--, f'lo.l\Qr Trunk X ,I L1tt Sta. X Cross Section STP X Genero.l ConditIon. overflows, bypasses, weirs. speclo.l
Inforno tlon. RATING Other Inout y Monitor characterIstiCS. surcho.rge ill Pleo.si' l'\o.l<i' 0. preCise draWing if odcl-sho.ped pipi' or specio.l Ind. U/S X t insto.llo. tlon L/S U/S
X I Hvdraullce: Slow velocity, smooth flow. 4" sediment in pipe. Jl&commended Analyslll Deys: ) I \ I J Wasler Ust of Rec:ommeaded paY": I I I I Additional Comments -FlDal Da.la Review
SurebAue : Yes Helll:ht : 4' tlnv.: DOl': 19' +/-TlIns: 14:20 Vel: fpl! Silt: 4-" Ul>lIJtrellm Manhole Not located '. :] Downstre&m llanhala Not located Ir XX XX : MiJll ::; \1\0 :....n
ChAl"'llcter: Reeldentlal/Commen:lal/lodustrlal/Vacllcl II I\(I1 r!
I-..... 􀁾 􀁾 􀁾 1.0..--..... ---􀁾􀀮 􀁾􀀭􀀮􀀮􀀮􀀭􀀮􀀮􀀭􀀮􀀮􀀮􀀮􀀮􀀮 --􀁾􀀭􀀭􀀭 ---.... 5.000 4.000 r--.. 3.000 oo 􀁾 '-./2.000 1.000 Site: RH01 FARMERS BRANCH, TEXAS ,\ f\ ('\ \ 􀁾
f \ 􀁉􀁾 I\J \v . 1.0 0.8 r--.. AJ 0-. :...J... 0--0.6 -:J 0:.T CD (J) 0.4 "'----l. ()l s-.: :J Cr+ 0.2 CD '-./0.000 I 1« I " I I lit I I I I 0.0 07/15/90 07/16/90 07/17/90 07/18/90
07/19/90 07/20/90 07/21/90 Site RH01 Rain Data
L.... _ I-l-=-\----I-. --. --􀁾 .-.,. -. 􀁾􀀮 -___aii. -...J 􀁾 ___.J .. _ ... , 5.000 4.000 r--. 3.OOO oo 􀁾 '-" 2.000 1.000 Site: RH01 FARMERS BRANCH, TEXAS I, I 1.0 0.8 r--. :::u
0-. :J """'" 0--0.6 -:J () :T CD UJ 0.4 "'-.. --l. (Jl 􀁾-. :J Cr+ 0.2 CD '-" 0.000 I II II", I, 􀁾 I I I I I I I 0.0 07/22/90 07/23/90 07/24/90 07/25/90 07/26/90 07/27/90 07/28/90 Site
RH01 Rain Data
􀁾􀁾 1-,.",-...-.=;:..... .,"-c:; --􀁾 ",-' 􀁬􀀢􀀬􀁾􀀻􀀮 .....-=--_ 6-."," 􀁾􀁟􀀮 􀁾􀁾 -__'..J 5.000 4.000 ;--.. 3.000 o􀁾 2 "-"" 2.000 1.000 􀁁􀁾 f\ V \ \J I Site: RH01 FARMERS BRANCH,
TEXAS 1.0 0.8 ;--.. :::0 0-. ::J -+, 0--0.6 -::J 0::r CD (f) 0.4 "--->. (Jl 􀁾-. ::J Cr+ 0.2 CD "-"" 0.000 I I, I I I I I I I 0.0 08/05/90 08/06/90 08/07/90 08/08/90 08/09/90 08/10/90
08/11/90 Site RH01 Rain Data
I -i -1 09/13/90 ADS SERVICES, INC. !l PIPE DIAMETER: 30.000 PROJECT: FARMBRAN 10 1: E MARSH LN a FARMERS BRANCH CR PIPE SHAPE: CIRCULAR SITE: RH01 10 2: FARMERS BRANCH, TEXAS ENERGY
GRADIENT: 1.762 RAIN GAUGE: RG01 .1 BASIN: RAI./HIDE CREEK MUD: 0.67 PEAK CAPAC ITY : 6.512 I, SUNDAY MONDAY TUESDAY I./EDNESDAY THURSDAY FRIOAY SATURDAY 7/15/90 7/16/90 7117/90 7/18/90
7/19/90 7/20/90 7/21/90 11 RAIN DEPTH FLOI./RAIN DEPTH FLO\I RAIN DEPTH FLOI./RAIN DEPTH FLOI./RAIN DEPTH FLOI./RAIN DEPTH FLOI./RAIN DEPTH FLOI./(in) (in) (mgd) (in) (in) (mgd) (in)
(in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 0:00 11.9 1.553 11.6 1.398 11.2 1.372 II : 15 12.2 11.3 11.0 :30 11.2 10.9 10.8 :45 11.1 10.2 10.7 1:00 10.8
1.299 10.4 1.143 10.3 1.210 :15 10.7 10.0 10.4 􀁾􀁬 :30 10.5 9.9 10.2 -1 :45 10.5 9.5 10.2 2:00 10.0 1.165 9.4 1.016 9.8 1.085 : 15 10.4 9.4 9.7 :30 9.9 9.2 9.8 :45 9.9 9.5 9.5 3:00
9.6 1.033 9.2 1.007 9.5 0.997 : 15 9.4 9.4 9.4 :30 9.5 9.5 9.2 :45 9.3 9.2 9.1 4:00 9.4 1.024 9.3 1.009 9.1 0.954 : 15 9.4 9.4 9.1 :30 9.3 9.3 9.1 :45 9.5 9.4 9.1 5:00 9.2 1.068 9.2
1.033 9.1 1.014 :15 9.6 9.4 9.4 :30 9.7 9.8 9.2 :45 10.0 9.4 9.7 6:00 9.9 1.375 9.6 1.213 9.4 1.065 :15 10.4 10.1 9.6 :30 0.01 11.3 10.3 9.5 :45 0.14 12.0 11.0 9.9 7:00 0.04 12.5 1.9n
11.6 1.n4 10.3 1.306 :15 12.8 12.4 10.1 :30 13.2 12.8 10.8 II :45 14.1 12.9 11.3 i 8:00 14.3 2.283 12.8 2.038 11.4 1.544 :15 0.01 14.1 13.4 11.4 :30 14.3 13.5 11.6 \ :45 14.1 13.8 11.9
9:00 14.4 2.237 14.1 2.195 11.8 1.686 :15 13.7 13.9 11.8 :30 13.7 13.6 12.1 :45 14.4 14.1 12.8 10:00 14.0 2.392 14.0 2.365 12.9 1.912 :15 14.8 14.3 12.9 :30 14.8 14.6 12.8 l :45 14.5
14.9 13.1 \i11:00 14.6 2.495 15.0 2.413 13.0 1.904 :15 14.9 14.5 13.0 :30 14.9 14.3 12.6 :45 15.1 14.6 13.0
I] SUNDAY MONDAY TUESDAY IIEDNESDAY THURSDAY FRIDAY SATURDAY 7/15/90 7/16/90 7/17/90 7/18/90 7/19/90 7/20/90 7/21/90 I ) RAIN DEPTH FLO\I RAIN DEPTH FLO\I RAIN DEPTH FLOII RAIN DEPTH
FLOII RAIN DEPTH FLDII RAIN DEPTH FLail RAIN DEPTH FLail (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 12:00 15.0 2.523
14.8 2.314 12.6 1.879 r I :15 14.8 13.9 12.7 :30 0.02 14.8 14.1 12.6 :45 0.02 15.2 14.3 13.3 13:00 0.01 14.8 2.585 14.1 2.298 12.9 1.815 1'-1 :15 15.1 14.3 12.4 :30 15.7 14.3 12.4 :45
15.1 14.3 12.7 14:00 15.1 2.563 14.6 2.434 12.4 1.749 :15 15.4 14.6 12.1 :30 15.0 14.8 12.4 :45 14.9 14.8 . 12.4 15:00 15.0 2.425 14.5 2.293 12.0 1.655 r: : 15 14.6 14.3 12.0 :30 14.8
14.2 12.0 :45 14.2 13.9 11.9 16:00 14.1 2.313 13.8 2.162 11.7 1.554 : 15 14.5 13.6 11.6 1 :30 0.22 14.1 13.6 11.9 :45 0.45 14.4 14.1 11.4 17:00 0.28 2.781 13.8 2.189 13.9 2.162 11.3
1.565 :15 0.04 14.1 13.6 11.5 􀁾 :30 0.01 13.9 14.0 12.0 􀁾 1• :45 15.8 13.7 13.6 11.9 i! 18:00 15.8 2.554 13.8 2.084 13.2 2.055 11.7 1.632 :15 0.01 15.1 13.7 13.4 11.9 I . :30 14.8
13.1 13.5 12.1 !, 􀁾 :45 1 14.6 13.5 13.6 12.0 19:00 14.5 2.231 13.7 2.012 12.9 1.837 11.5 1.590 : 15 14.4 13.2 12.6 11.9 􀁾 :30 13.9 13.0 12.6 12.0 i :45 13.3 13.2 12.6 11.6 ! 20:00
13.6 2.041 12.8 1.887 12.4 1.698 11.5 1.557 :15 13.7 12.6 12.0 11.9 I J :30 13.1 13.0 11.9 11.6 I :45 0.01 13.1 12.9 12.3 11.5 I 21:00 0.01 13.5 1.995 12.6 1.768 12.2 1.635 11.7 1.554
:15 13.4 12.3 11. 7 11.9 I] :30 13.0 12.4 11.8 11.7 :45 13.0 12.4 12.1 11.3 22:00 13.1 1.932 12.5 1.843 11.5 1.541 11.5 1.441 : 15 13.2 12.4 11.3 11.2 IJ :30 13.0 12.8 11.9 11.0 :45
12.7 13.0 11.6 11.1 23:00 12.4 1.788 12.8 1.750 11.4 1.546 11.1 1.371 : 15 12.4 12.2 11.5 10.7 IJ :30 12.8 12.0 11.8 10.9 :45 12.3 12.3 11.7 10.9 rJ TOT RAIN: 0.00 0.19 0.08 1.01 0.00
0.00 0.00 TOT FLO\I: 2.118 1.910 1.774 1.476 AMMIN FLII: 5:00 0.973 3:45 0.973 3:45 0.948 MIN FLail: 23:45 1.741 5:00 0.973 3:45 0.973 3:45 0.948 MAX FLO\I: 17:45 2.781 13:30 2.743 11:00
2.519 12:45 2.009 IJ DEPTH SENSOR USED: Pressure iJ IJ I
-II 09/13/90 ADS SERVICES, INC. i -1 PIPE D[AMETER: 30.000 PROJECT: FARMBRAN 10 1: E HARSH LN @FARMERS BRANCH CR PIPE SHAPE: CIRCULAR SITE: RH01 [0 2: FARMERS BRANCH. TEXAS ENERGY GRADIENT:
1.762 RAIN GAUGE: RG01 'l BASIN: 􀁒􀁁􀁾􀁈􀁉􀁄􀁅 CREEK MUD: 0.67 PEAK CAPAC[TY: 6.512 SUNDAY MONDAY TUESDAY IIEDNESDAY THURSDAY FR[DAY SATURDAY 7/22/90 7/23/90 7/24/90 7/25/90 7/26/90
7/27/90 7/28/90 􀁴􀁾 RA[N DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH FLQI./RA[N DEPTH FLQI./RAIN DEPTH 􀁆􀁌􀁏􀁾 RA[N DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 (in) (in) (mgd) (in) (in) (mgd)
(in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 0:00 10.6 1.297 10.3 1.165 11.0 1.323 11.1 1.372 11.6 1.434 12.0 1.567 12.6 1.728 1 :15 11.0 10.0 10.9
11 .1 11.2 11.9 12.2 :30 10.6 0.11 9.9 10.4 10.8 11.0 11.6 12.3 :45 10.3 10.0 10.6 10.6 10.8 11.3 12.0 1:00 10.3 1.181 9.8 1.065 10.1 1.158 10.3 1.185 10.6 1.252 11.3 1.386 11.7 1.519
:15 10.2 0.01 9.4 10.3 10.2 10.7 10.9 11.8 1 :30 10.2 0.01 9.5 10.0 9.9 10.3 10.9 11.2 :45 9.8 9.6 9.7 10.1 10.2 10.7 11.3 2:00 9.5 1.018 9.4 0.986 9.8 1.078 9.8 1.100 10.1 1.212 10.9
1.292 10.9 1.335 : 15 9.4 9.3 9.6 9.7 9.8 10.5 10.7 1 :30 9.3 9.0 9.6 9.8 10.1 10.4 10.7 :45 9.3 0.01 9.2 9.5 9.6 10.9 10.6 10.6 3:00 9.0 0.955 9.1 0.959 9.4 0.984 9.6 1.059 11.4 1.396
10.4 1.210 10.4 1.273 : 15 9.3 0.01 9.2 9.1 9.5 11.1 10.2 10.9 1 :30 9.0 0.01 9.1 9.3 9.5 10.7 10.2 10.3 :45 9.0 9.1 9.2 9.7 10.7 10.1 10.4 4:00 8.9 0.920 9.4 1.009 9.2 0.992 9.6 1.048
10.5 1.206 10.3 1.165 10.2 1.181 :15 8.8 9.3 9.3 9.4 10.2 9.9 10.0 􀁾 :30 9.1 9.3 9.2 9.5 10.2 10.0 10.2 I :45 8.9 9.4 9.3 9.6 10.0 10.0 10.0 5:00 9.0 0.950 9.4 1.076 9.3 1.033 9.6 1.109
10.3 1.190 9.8 1.118 10.1 1.160 : 15 9.0 9.6 9.3 9.6 10.1 9.7 10.0 I :30 9.0 9.6 9.6 9.8 10.1 9.8 10.0 :45 9.3 10.0 9.6 10.1 10.1 9.9 10.0 ! 6:00 9.1 0.984 10.0 1.305 9.8 1.314 10.1
1.354 10.9 1.480 10.2 1.421 10.2 1.213 :15 9.2 10.1 10.4 10.3 10.9 10.7 10.2 r "" :30 9.2 11.1 10.6 11.1 11.5 11.1 10.4 I i :45 9.4 11.3 11.8 11.8 12.0 12.3 10.3 i 7:00 9.4 1.072 11.5
1.725 12.2 1.819 12.1 1.935 12.6 2.087 12.8 2.100 11.0 1.449 :15 9.6 12.1 12.4 12.9 13.2 13.3 10.9 J :30 9.5 12.6 12.8 13.3 13.7 13.8 11.3 :45 10.1 12.8 0.01 13.0 13.7 14.6 14.4 11.7
8:00 10.1 1.262 12.9 1.929 13.8 2.104 13.8 2.115 14.5 2.248 14.0 2.230 12.0 1.704 :15 10.2 12.7 13.4 13.5 13.8 14.2 12.1 J :30 10.8 13.1 13.3 13.6 14.0 14.1 12.0 :45 10.7 13.2 13.9 13.6
14.0 13.8 12.6 9:00 11.0 1.512 13.6 2.078 13.4 2.058 13.5 2.204 13.6 2.294 13.9 2.242 13.3 2.055 :15 11.1 13.1 13.2 14.1 13.8 14.2 13.5 :30 11.7 13.7 13.5 13.9 14.7 13.7 13.3 J :45 12.0
13.6 13.6 14.2 14.8 14.3 13.5 10:00 12.2 1.733 14.0 2.236 13.6 2.186 14.5 2.440 14.5 2.458 14.9 2.489 13.8 2.098 :15 12.1 13.9 13.6 0.03 14.7 14.7 14.8 13.5 :30 12.4 13.9 14.2 14.6 14.8
14.7 13.4 J :45 12.4 14.4 14.0 15.0 15.0 15.1 13.6 11:00 12.4 1.809 14.4 2.377 14.3 2.434 15.0 2.603 14.6 2.458 15.6 2.582 13.8 2.180 :15 12.5 14.4 14.6 15.2 14.8 14.9 13.9 :30 12.6
14.9 14.8 15.4 14.7 15.0 14.0 J :45 12.8 14.3 15.0 15.3 . 14.8 15.1 13.7 JJ
1.1 SUNDAY MONDAY TUESDAY IJEDNESDAY THURSDAY FRIDAY SATURDAY 7/22/90 7/23/90 7/24/90 7/25/90 7/26/90 7/27/90 7/28/90 1 RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH
FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 12:00 12.6 1.728
14.6 2.392 15.2 2.520 15.6 2.659 15.2 2.541 15.0 2.492 13.8 2.183 1 : 15 11.9 I 14.7 15.0 15.5 14.8 15.0 14.1 I :30 12.0 14.6 14.9 15.2 14.9 15.1 13.7 I· :45 12.6 14.3 14.8 15.3 15.1
14.4 13.8 13:00 12.0 1.637 14.1 2.286 15.2 2.480 15.1 2.501 14.6 2.434 14.3 2.364 14.1 2.221 􀀡􀁾􀀬 :15 11.7 14.3 14.5 14.7 14.6 14.5 14.3 :30 12.0 14.1 14.8 14.9 14.8 14.4 14.0 I :45
12.0 14.4 14.8 14.9 14.7 14.7 13.6 14:00 11.7 1.603 13.8 2.251 0.11 14.3 2.401 14.6 2.508 14.7 2.492 14.4 2.413 13.5 2.118 :15 11.6 14.1 0.01 14.4 15.3 14.9 14.6 13.8 I􀁾􀁉 :30 12.2
14.4 15.1 14.8 14.8 14.6 13.6 :45 0.10 11.9 14.0 14.4 15.0 15.1 14.8 13.7 15:00 11.7 1.567 14.0 2.308 14.4 2.383 15.0 2.517 14.6 2.434 15.0 2.480 13.9 2.087 :15 11.7 14.2 14.4 15.0 14.5
14.7 13.7 􀁉􀁾􀁾􀀺􀁾 :30 0.03 11.8 14.1 14.3 15.2 15.1 14.6 13.2 :45 11.6 14.9 14.9 14.7 14.5 15.0 13.4 16:00 10.9 1.484 14.4 2.343 14.5 2.338 14.5 2.374 14.6 2.317 14.9 2.398 13.9 2.019
: 15 11.2 14.6 14.4 14.7 14.2 14.4 13.6 )] :30 11.8 14.5 14.6 14.2 14.4 14.6 12.9 :45 11.5 14.1 14.0 14.6 14.1 14.4 12.8 17:00 11.0 1.463 14.2 2.177 14.5 2.329 14.1 2.296 14.1 2.242
14.3 2.236 13.0 1.921 :15 11.1 13.9 14.6 14.0 14.2 14.1 13.1 I :30 11.6 13.7 14.1 14.5 14.0 13.8 13.1 :45 11.3 13.5 14.1 14.4 14.0 14.0 12.6 18:00 11.3 1.418 13.6 2.049 14.1 2.239 14.0
2.218 14.3 2.242 14.3 2.183 12.9 1.893 : 15 10.9 13.4 14.3 14.1 14.4 13.7 13.2 1 :30 11.0 13.2 13.9 14.2 14.0 13.7 12.8 I :45 11.2 13.4 13.9 13.7 13.6 13.8 12.6 ,i 19:00 11.2 1.438 13.1
1.941 14.0 2.168 13.3 2.034 13.8 2.072 13.6 2.055 12.6 1.854 :15 11.1 12.8 13.8 13.3 13.5 13.5 12.8 ..I :30 11.1 13.1 13.8 13.5 13.2 13.4 12.9 :45 11.3 13.0 13.6 13.3 13.4 13.2 12.6
20:00 11.0 1.396 12.4 1.776 13.3 2.037 13.3 1.941 13.2 1.986 13.1 1.926 12.3 1.669 : 15 10.8 12.5 13.3 12.9 13.2 13.0 12.2 􀀮􀀺􀀢􀁾 :30 11.0 12.4 13.5 12.8 13.1 12.8 12.0 I :45 11.2
12.6 13.3 13.1 13.2 13.0 11.8 1 21:00 11.1 1.468 12.4 1.695 13.0 1.890 12.8 1.851 13.3 1.983 13.0 1.879 12.0 1.730 :15 11.1 12.3 0.01 12.9 12.7 13.2 12.9 12.4 I •• ' :30 11.3 11.9 12.7
12.6 13.2 12.4 12.2 iJ :45 11.5 12.1 12.8 12.8 13.0 12.9 12.4 22:00 11.1 1.443 12.0 1.606 12.4 1.782 12.6 1.818 13.0 1.915 13.0 1.890 12.3 1.728 : 15 11.0 11.9 12.2 12.1 12.8 12.5 12.3
i] :30 11.4 11.9 12.6 12.7 13.0 12.8 12.4 :45 11.3 11.5 12.6 13.0 13.0 13.1 12.0 23:00 10.9 1.396 11.7 1.508 12.3 1.611 12.4 1.693 13.0 1.823 12.8 1.856 11.5 1.541 :15 11.0 11.6 11.8
12.3 12.6 12.6 11.7 :30 10.9 11.5 11.6 12.0 12.4 12.7 11.7 iJ :45 11.2 11.1 11.7 11.9 12.4 12.8 11.5 TOT RAIN: 0.13 0.16 0.14 0.03 0.00 0.00 0.00 IJ TOT FLOIJ: 1.364 1.760 1.861 1.914
1.967 1.957 1.744 AMMIN FLIJ: 4:15 0.892 2:30 0.940 3:15 0.948 4:15 1.024 2:15 1.120 5:15 1.093 5:45 1.147 MIN FLOIJ: 4:15 0.892 2:30 0.940 3:15 0.948 4: 15 1.024 2:15 1.120 5:15 1.093
5:45 1.147 MAX FLOIJ: 11:45 1.873 11:30 2.507 13:00 2.606 12:00 2.731 12:00 2.606 11 :00 2.731 13:15 2.313 iJ DEPTH SENSOR USED: Pressure lJI J"
I SUNDAY MONDAY TUESDAY IIEDNESDAY THURSDAY FRIDAY SATURDAY 7/29/90 7/3D/90 7/31/90 8/1/90 8/2/90 8/3/90 8/4/90 ! ] RAIN DEPTH FLOII RAIN DEPTH FLOII RAIN DEPTH FLOII RAIN DEPTH FLOII
RAIN DEPTH FLOII RAIN DEPTH FLOII RAIN DEPTH FLOII (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (1TI9d) 12:00 12.3 1.n9 14.2
2.346 14.3 2;328 14.3 2.316 14.6 2.311 15.1 2.585 14.8 2.440 I I : 15 12.3 14.5 14.3 14.6 14.4 15.3 14.6 :30 12.6 14.6 14.6 14.1 14.1 15.4 14.7 i I :45 12.6 14.3 14.3 14.2 14.1 14.9
14.7 13:00 12.5 1.768 14.6 2.305 14.5 2.304 14.1 2.293 14.2 2.289 14.7 2.455 14.5 2.329 :15 12.1 14.2 14.3 14.1 14.2 14.6 14.6 :30 12.5 14.0 14.0 14.1 14.1 15.0 14.2 :45 12.6 14.3 14.3
14.6 14.4 14.6 14.0 14:00 12.5 1.698 14.1 2.329 14.5 2.404 13.1 2.353 14.3 2.347 14.8 2.529 14.1 2.254 :15 11.9 14.5 14.5 13.6 14.4 14.6 14.2 :30 12.0 14.7 15,0 15.7 14.8 0.57 15.2 14.1
:45 12.2 14.1 14.4 15.2 14.2 15.4 14.0 15:00 12.0 1.582 13.9 2.210 14.3 2.325 14.6 2.422 14.1 2.316 2.316 15.2 2.541 13.7 2.171 II :15 11.5 14.0 14.1 14.8 14.3 15.4 14.0 I· :30 11.7
13.7 14.4 14.6 14.3 14.8 13.9 i 􀀢􀁾 :45 0.02 11.8 14.3 14.6 14.6 14.6 0.01 14.8 13.7 16:00 0.05 11.6 1.529 13.5 2.156 1:3.9 2.197 14.4 2.286 14.3 2.307 14.9 2.422 13.9 2.095 :15 11.9
13.9 13.9 14.3 14.3 14.4 13.7 :30 11.3 13.9 14.0 14.1 14.2 14.6 13.4 :45 11.3 13.7 13.9 14.0 14.3 14.7 13.3 17:00 11.4 1.471 13.9 2.092 13.6 2.052 14.2 2.131 14.1 2.192 14.0 2.272 13.3
2.072 :15 11.0 13.3 13.1 13.7 13.6 14.1 13.4 :30 11.2 􀀱􀀳􀀮􀁾 13.3 13.3 14.0 14.3 13.6 } .. :45 11.6 13.4 13.6 13.5 13.9 14.2 13.6 18:00 11.1 1.448 13.2 2.000 13.8 2.101 13.3 2.046
13.3 2.049 14.1 2.201 13.9 2.145 :15 10.8 13.3 13.6 13.4 13.4 14.3 14.1 :30 11.3 13.1 13.3 13.3 13.5 13.8 13.6 j :45 11.6 13.3 13.6 13.5 13.4 13.4 13.3 19:00 11.3 1.470 13.3 1.907 13.6
1.920 13.3 1.865 13.3 1.989 13.5 2.078 13.2 2.037 :15 11.1 12.6 13.2 12.6 13.3 13.5 13.6 I :30 11.4 12.8 12.8 12.5 13.1 13.5 13.4 :45 11.4 13.0 12.2 12.6 13.1 13.5 13.3 J 20:00 11.4
1.448 12.6 1.709 12.0 1.682 12.4 1.757 12.8 1.924 13.3 1.918 13.1 1.935 :15 10.9 12.2 12.2 12.6 13.0 13.0 13.1 ! :30 11.1 12.2 12.3 12.2 12.9 12.6 13.1 i :450.11 11.5 11.9 12.0 12.2
13.3 13.0 12.7 j 21:00 0.33 11.4 1.401 12.1 1.652 11.9 1.672 12.7 1.nl 13.3 1.958 12.7 1.796 12.7 1.870 :15 0.15 11.1 12.0 11.9 12.5 0.01 13.1 12.2 12.8 I'" :30 0.02 10.8 11.9 12.3 12.5
0.05 13.0 12.7 12.9 \J :45 10.8 12.0 12.3 12.0 0.05 13.1 12.4 12.8 22:00 11.1 1.374 11.9 1.587 11.8 1.685 12.3 1.704 0.02 13.1 1.879 12.4 1.810 12.6 1.854 :15 10.9 11.9 12.0 12.3 0.01
12.7 12.4 12.7 IJ :30 10.7 11.7 12.4 12.3 0.01 12.5 12.4 12.9 :45 10.9 11.5 12.3 11.9 12.9 13.1 12.7 23:00 10.9 1.352 12.0 1.492 11. 7 1.546 11.7 1.554 13.1 1.811 12.4 1.722 12.6 1.768
:15 11.0 11.4 11.5 11.9 12.7 12.2 12.3 iJ :30 10.8 11.0 11.8 11.7 12.3 12.2 12.6 :45 10.6 11.1 11.4 11.2 12.1 12.2 12.3 I" TOT RAIN: 0.68 0.00 0.00 0.00 0.15 0.58 0.53 IJ TOT FLOII:
1.405 1.704 1.nO 1.769 1.836 1.953 1.823 AMMIN FLII: 6:15 0.924 3:30 0.868 3:30 0.932 4:45 0.940 3: 15 1.007 3:45 1.033 5:30 0.932 MIN FLOII: 6: 15 0.924 3:30 0.868 3:30 0.932 4:45 0.940
3:15 1.007 3:45 1.033 5:30 0.932 MAX FLOII: 11:30 1.929 14:30 2.434 11:15 2.532 14:30 2.756 11:30 2.458 11:15 2.806 11:00 2.581 IJ DEPTH SENSOR USED: Pressure IJ l,1:;,;
-I 09/13/90 ADS SERVICES, INC. MONDAY 8/6/90 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 (in) (in) (mgd) (in)
(in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) I(. :1-' 10 1: E MARSH LN 􀁾 FARMERS BRANCH CR 10 2: FARMERS BRANCH, TEXAS BASIN: 􀁒􀁁􀁾􀁈􀁉􀁄􀁅 CREEK SUNDAY
8/5/90 RAIN DEPTH 􀁆􀁌􀁾 (in) (in) (rngd) PIPE DIAMETER: 30.000 PIPE SHAPE: CIRCULAR ENERGY GRADIENT: 1.762 MUD: 0.67 PROJECT: SITE: RAIN GAUGE: PEAK CAPACITY: FARMBRAN RH01 RG016.512
;-􀀭􀁟􀀮􀁾 I f iJ !] II 1.-£ 0:00 :15 :30 :45 1:00 :15 :30 :45 2:00 :15 :30 :45 3:00 :15 :30 :45 4:00 :15 :30 :45 5:00 :15 :30 0.09 :45 6:00 :15 :30 :45 7:00 :15 :30 :45 0.01 8:00 0.01
:15 :30 :45 9:00 :15 :30 :45 10:00 :15 :30 :45 11:00 :15 :30 :45 12.0 12.0 12.1 11.3 11.3 11.5 11.0 11.2 10.6 10.5 10.3 10.0 10.0 10.1 10.0 9.7 9.8 9.6 9.5 9.4 9.4 9.8 9.5 9.8 9.6 9.8
10.2 10.3 10.7 10.5 11.0 11.4 11.5 11.7 12.0 12.4 12.6 12.3 12.6 13.1 13.1 13.5 13.1 13.3 13.5 13.6 13.7 13.7 1.619 1.455 1.234 1.147 1.063 1.072 1.152 1.377 1.633 1.829 2.000 2.118
12.3 11.8 12.0 11.4 11.4 11.2 11.2 10.9 11.1 10.7 11.0 10.6 10.6 10.6 10 •.6 10.8 10.4 10.4 10.5 10.4 10.5 10.2 10.6 10.6 11.1 11.1 11.9 12.3 12.8 13.0 13.4 14.0 13.9 13.9 14.1 14.3
14.6 14.9 14.9 15.3 15.4 15.4 15.4 15.5 15.5 15.6 15.5 15.3 1.619 1.438 1.360 1.304 1.259 1.264 1.554 2.019 2.242 2.504 2.668 2.681
SUNDAY 8/5/90 RAIN DEPTH 􀁆􀁌􀁾 (in) (in) (mgd) MONDAY 8/6/90 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH FLOY (in) (in)
(mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) II IiIIi I j IIl Il '!J I.··., IJ I,.,I I..-S I'd IJ jJ 12:00 13.5 2.035 15.0 2.572 : 15 13.4 15.3
:30 13.3 15.4 :45 13.1 14.8 13:00 12.9 1.949 14.5 2.495 :15 12.9 14.8 :30 13.5 15.1 :45 13.0 15.2 14:00 13.1 1.841 15.1 2.517 :15 12.8 15.1 :30 12.7 14.8 :45 0.01 12.1 14.8 15:00 0.08
12.4 2.027 14.8 2.455 :15 0.06 12.9 15.0 :30 0.03 13.7 14.6 :45 0.03 14.3 14.5 16:00 14.8 2.474 14.8 2.471 :15 0.01 14.6 14.6 :30 0.02 15.0 15.2 :45 0.02 14.8 14.6 17:00 0.01 14.6 2.379
14.4 2.269 :15 14.6 14.4 :30 14.5 13·11 :45 14.4 14.0 18:00 14.1 2.266 14.1 2.212 :15 14.4 14.0 :30 14.1 13.7 :45 13.9 14.0 19:00 13.7 2.127 14.0 2.113 :15 13.5 13.4 :30 13.7 13.5 :45
13.7 13.6 20:00 13.6 2.063 13.4 1.972 :15 13.4 13.2 :30 13.3 13.1 :45 13.4 12.9 21:00 13.3 2.037 13.1 13.1 1.876 : 15 13.6 12.9 :30 13.2 12.6 :45 13.3 12.6 22:00 13.4 2.046 12.7 1.871
:15 13.3 12.9 :30 13.4 13.0 :45 13.5 12.6 23:00 13.5 1.961 12.5 1.704 :15 13.3 12.3 :30 12.8 12.2 :45 12.8 11.8 TOT RAIN: 0.38 0.00 TOT 􀁆􀁌􀁏􀁾􀀺 1.788 2.018 AMMIN 􀁆􀁌􀁾􀀺 4:45 1.016
5: 15 1.201 MIN 􀁆􀁌􀁏􀁾􀀺 4:45 1.016 5:15 1.201 MAX 􀁆􀁌􀁏􀁾􀀺 16:30 2.532 11:15 2.718 DEPTH SENSOR USED: Pressure
rIIII, 􀁾r . 􀁾r,I . 􀁬􀁾 IlrlIl[ JlrIl IlIjL Site RH02 Flow Monitoring Data and Hydrographs
, = 1500 ;;;::;;;;;0". •􀀽•􀁾••􀁳􀀽 Site Report Manhole I AN lionitor e i ,.., I Services. Inc. RH02 8403 REVARD Jr roUND -􀀨􀁩􀁾􀀽 883-'3323 Project/Ph......e: 07/03/90 Name:BF V-Sensor
II Bat Sertll..1 # Press. X-ducer II Farmer.l Branch. TX o..te: Addreos/!ncation: On creek easement west at AlDha Rd. Dist. to X-ducer Physical Otr.sel DlAmeter 1.25" 6" 8" Ac:=......
: INSTALLATION Ultrasonics C,..􀀨􀀾􀁴􀀡􀀧􀁾 Alpho. Rei RHoeY: -􀁾􀀧􀀢 RH02 @8' SAFETY I'L 10' 􀁾 <) Manhole Denlh: >. ex None Ql Traffic: a cl a !:. 􀁾 Q. GIl.lS li) InVl:stilllltion:
None 635 􀁾 /Manhole Condition: Brick M/H. hood N t Sii:e Rain Gau"e Zone: RGOl Droll/Fall: 8' Install QC: Date: IDt. : \,\\' 8' Comments: ........... , ," Pi"" Tvne: S· S' 􀁾 􀁾􀀩 ,
'--J 􀁾 Y N ? -:t--􀁾 Nt BACKUP DISTANCE PlQnQr Trunk Cross Seci:lon Litt St&. STP Genera.l Conelltlon. overflows. bypo.sses. weirs. speclo.l InforMation. RATING Other lnnul Monitor
cha.ra.ci:erlstlcs, surcho.rge ill Pleo.sE' Ma.ke 0. precise dra.wlng If odd-sho.ped pipe or SpeClo.l Ind. U/S insta.lla. tion B LiS U/S HvdrauliC1l: Reasonably smooth flow, no sediment
in pipe. Recommended Anl!l.1ysis Deys: I I I li'l...ter llst of Recommended 0..,....: I . I I Additional Comment.:! -FinI!l.1 Data Review Surchllue: Yes Height: 10' Inv.: DOF: 5" +/-0
TIme: 16: 00 Vel: 􀁦􀁾 Silt: UnBtream Manhole Not suitable DOWIUltream Manhole Not located " XX XX Mini SyStem Character. Re:tidentll!l.1/Commercial/lndustrlal/V'lcllnt J1 ,I1 i ] ,
\ . I j I' \ i1"\ I J II
· 􀀭􀀬􀀭􀀭􀁾 :. -􀁾 '. .-'" -,_ '" ,'.I _ 􀁟􀀬􀁾 _'􀁟􀁾 􀁟􀀢􀁾 __--I _ --.J _ ,.-J --.J -..J -J -=.; .---J _. _ J Site: RH02 FARMERS BRANCH, TEXAS 2.000 1.600 .-.. 1.200 oC> 2 '-J 0.800
0.400 , ' 􀁾 􀁾 􀁾 ........ , \ 􀁖􀁾IJ V , 1.0 0.8 .-.. :;:0 Q-. :::l -h Q--0.6 -:::l () ::J CI> en 0.4 "---" (J1 􀁾-. :::l Cr-t-0.2 CI> '-J 0.000 I I I I I I I I 0.0 07/01/90 07/02/90
07/03/90 07/04/90 07/05/90 07/06/90 07/07/90 Site RH02 Rain Data
􀁾 . .J I '. _...J __ 􀁾􀀭􀁊 -_.--r,.,' .: 􀁾__._ . .J 2.000 1.600 r--. 1.200 oC) 2 '-' 0.800· 0.400 Site: RH02 FARMERS BRANCH, TEXAS : j'-'" 1\ r ..... 1'-1 V "-􀁾 1.0 0.8 r--. ;u 0-.
:J ...... 0--0.6 -:J 0:r <t> CJ) 0.4 "-.. -->. ()1 -s:.: :J C...... 0.2 <t> '-' 0.000 I I I I I.' I I I 0.0 07/08/90 07/09/90 07/10/90 07/11/90 07/12/90 07/13/90 07/14/90 Site RH02 Rain
Data
4'" .. • • " -" 􀁲􀀭􀁾􀀭􀀺 􀁾 . 􀁾 -----.J ) J 􀁊􀀭􀁃􀀺􀁾􀁊 -=-.-J 􀀭􀀽􀁟􀀮􀁾 􀀭􀁟􀁾 -=-j 􀀧􀁟􀁾 Site: RH02 FARMERS BRANCH, TEXAS 2.000 I I I I I I I I 1.0 1.600 I I I I I I I 10.8 ,........
:::0 0-. :J --to, 0--,........ 1.200 0.6 -0 :J () '" ::::J 􀁾 (J) I (f) '-" 0.800 "'-I 0.4 􀁾(Jl 􀁾-. :J C,-+ 0.400 I c '"\. . I I I ''"\I , \' H ' 1 I \f\ I d \ :7\,,1 0.2 (J) J v\
I I I I I \ I I 7 '-" 0.000 I I' I.' I I I. I I I I 0.0 07/15/90 07/16/90 07/17/90 07/18/90 07/19/90 07/20/90 07/21/90 Site RH02 Rain Data
--._--, J 􀀭􀀭􀀭􀀭􀁾I 􀁟􀀮􀁟􀀮􀁟􀁾/.. ----J J 􀁾􀀭􀀭􀀭􀀽􀀺􀁊 􀀭􀀽􀁾􀁟􀀭__J I ._._ J __ J 􀁟􀁾􀁾􀁊 2.000 1.600 r-.. 1.200 oC) 􀁾 '-' 0.800 0.400 Site: RH02 FARMERS BRANCH, TEXAS 􀁾IV
'-1 \..,lJ \ ( v1\J "\ 1\/'/\" '\J N N 􀁾 II I 1.0 0.8 r-.. ;0 0-. :::J -k 0--0.6 -:::J () :::J" CD UJ 0.4 .......... -l. (Jl 􀁾:::J Cr+ 0.2 CD "-.../0.000 I II 1111' I!.,I I I I I I
0.0 07/22/90 07/23/90 07/24/90 07/25/90 07/26/90 07/27/90 07/28/90 Site RH02 Rain Data
'. ----. " 􀀭􀁾 -,/_J __􀁾 􀀭􀀽􀀭􀁾􀁾􀁪 -.. -J 􀀭􀁾􀀭􀀧􀀭􀁊 􀀭􀀽􀁾􀁾 J 2.000 1.600 r--.. 1.200 oC> 􀁾 '-J 0.800 0.400 Site: RH02 FARMERS BRANCH, TEXAS 􀀮􀁾􀁾􀁾􀁊􀀭􀁜 􀁾 􀁾􀀯 \ r \ f
u II v IV \) v J I IlJ, 1.0 0.8 r--.. ::u 0-. :-.J.. 0--0.6 -:J () :::r CD (J) 0.4 "'---lo ()l 􀁾-. :J Cr+ 0.2 CD '-J 0.000 1 I I 1 1 1 1 61 I, 1 ,""" I 0.0 07/29/90 07/30/90 07/31/90
08/01/90 08/02/90 08/03/90 08/04/90 Site RH02 Rain Data
--..-J .---:.--2.000 1.600 􀁾 1.200 oC) 􀁾 '-' 0.800 0.400 ----'-'--'. 1\/"fJ 'I I Site: RH02 FARMERS BRANCH, TEXAS 1.0 0.8 􀁾:;0 Q-. :J -t> Q--0.6 -:J 0::r (1) (J) 0.4 "-"-"" (Jl 􀁾-.
:J Cr+ 0.2 (1) '-' 0.000 I I, I I I I I I I 0.0 08/05/90 08/06/90 08/07/90 08/08/90 08/09/90 08/10/90 08/11/90 Site RH02 Rain Data
08/30/90 ADS SERVICES, INC. I􀀭􀁾 II PIPE DIAMETER: 8.000 PROJECT: RAYHIDE IIID 1: @CREEK EASEMENT Y. OF ALPHA PIPE SHAPE: CIRCULAR SITE: RH02 I ID 2: FARMERS BRANCH, TEXAS ENERGY GRADIENT:
5.763 RAIN GAUGE: RG01 BASIN: RAYHIDE CREEK MUD: 0.00 PEAK CAPACITY: 0.634 I SUNDAY MONDAY TUESDAY YEDNESDAY THURSDAY FRIDAY SATURDAY r 7/1/90 7/2/90 7/3/90 7/4/90 7/5/90 7/6/90 7/7/90
I RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY (in) (in) (mgd) (in) (in) (mgd) (i n) (i n) (mgd) (in) (in) (mgd) (in)
(in) (mgd) ( in) (i n) (mgd) (in) (in) (mgd) f,-"o:oo 4.7 0.318 4.4 0.279 7.4 0.621 5.4 0.423 I :15 4.4 4.1 7.3 5.4 :30 4.7 4.4 7.3 5.5 1--:45 4.5 4.1 7.5 5.4 I 1:00 4.6 0.305 4.2 0.245
7.5 0.620 5.4 0.400 1 :15 4.6 4.3 7.4 5.3 :30 4.3 3.7 5.3 􀀮􀁾 i :45 4.4 3.7 7.2 4.9 i L 2:00 4.1 0.240 3.7 0.210 7.2 0.611 4.8 0.354 : 15 3.7 3.8 7.3 4.8 􀁾 :30 3.9 3.5 7.2 4.8 I :45
4.0 3.6 7.1 5.0 I 3:00 4.1 0.228 3.6 0.208 7.3 0.622 5.0 0.294 i :15 3.7 3.7 7.2 4.1 I 􀁾 :30 3.7 3.7 7.6 4.3 i :45 3.7 3.6 7.6 4.2 I 4:00 3.7 0.211 3.4 0.197 7.2 0.609 4.2 0.287 . :
15 3.6 3.4 7.1 4.3 , 􀁾􀀻􀀬 :30 3.8 3.6 7.3 4.4 I :45 3.6 3.7 7.1 4.4 I 5:00 3.7 0.220 4.1 0.249 7.4 0.623 4.2 0.295 : 15 3.5 3.8 7.4 4.4 􀁾 :30 4.3 3.7 7.4 4.3 :45 3.4 4.4 7.5 4.7 6:00
3.7 0.235 4.5 0.335 7.5 0.626 4.9 0.350 􀁾 : 15 3.9 4.7 7.6 4.7 :30 4.0 4.7 7.6 4.7 :45 3.9 5.0 7.4 5.0 7:00 4.2 0.291 4.8 0.391 7.4 0.582 5.3 0.412 , .. : 15 4.3 5.0 7.4 5.3 II :30
4.4 5.6 7.4 5.2 :45 4.5 5.4 5.7 5.5 ..8:00 4.7 0.355 6.0 0.502 6.0 0.494 5.8 0.466 : 15 4.8 5.9 5.9 5.8 l :30 4.9 6.1 6.0 5.6 :45 5.1 6.2 6.1 5.9 􀁾􀀹􀀺􀀰􀀰 5.4 0.396 5.7 0.463 5.9 0.501
5.7 0.471 I : 15 5.0 5.4 6.2 5.7 i :30 4.9 6.0 6.0 :45 5.5 5.9 5.9 r 􀁾􀁏􀀺􀁏􀁏 5.0 0.410 5.9 0.502 5.8 0.491 6.1 0.491 I :15 5.2 6.1 6.0 5.9 ! ' :30 5.5 6.1 6.1 5.9 :45 5.6 6.1 6.0
5.9 , 1:00 5.3 0.367 6.1 0.505 5.6 0.490 6.3 0.491 I :15 4.8 6.2 5.9 5.9 :30 4.8 6.3 6.2 5.7 J ] :45 5.0 5.8 6.1 5.9 /1 I
SUNDAY MONDAY TUESDAY I.'EDNESDAY THURSDAY FRIDAY SATURDAY 7/1/90 7/2/90 7/3/90 7/4/90 7/5/90 7/6/90 7/7/90 RAIN DEPTH FLOI.' RAIN DEPTH FLOI.' RAIN DEPTH FLOI.' RAIN DEPTH FLOI.' RAIN
DEPTH FLOI.' RAIN DEPTH FLOI.' RAIN DEPTH FLOI.' (in) (in) (mgd) (in) ( in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (i n) (i n) (mgd) (in) (in) (mgd) (in) (in) (mgd) I 12:00 5.1 0.385
6.1 0.489 6.1 0.520 6.0 0.490 I I :15 5.1 5.9 6.3 6.2 :30 5.4 5.9 6.4 5.7 :45 4.8 5.9 6.1 5.9 '13:00 4.8 0.360 5.9 0.530 6.5 0.527 6.1 0.502 :15 5.1 6.1 6.5 6.2 :30 4.9 6.1 6.5 5.9 􀁬􀀭􀁬􀀱􀀴􀁾􀁾􀁾
4.9 7.5 5.7 6.1 4.7 0.382 7.6 0.629 5.9 0.492 6.2 0.502 i I :15 4.8 7.6 6.2 6.3 :30 5.9 7.5 6.1 6.0 􀁃􀁉􀀱􀀵􀁾􀁾􀁾 5.1 7.6 5.7 5.8 5.0 0.348 7.6 0.626 5.9 0.486 6.1 0.493 I : 15 4.7
7.5 5.6 6.1 :30 4.6 7.5 6.1 5.9 [-"1 :45 5.0 7.5 6.1 5.9 , \ 16:00 0.410 4.6 0.322 7.5 0.627 6.4 0.512 5.9 0.473 :15 4.7 7.5 6.0 5.6 :30 4.3 7.5 6.1 6.1 II:45 5.3 4.8 7.5 6.1 5.7 ,I
i 17:00 5.2 0.418 4.3 0.317 7.5 0.627 5.8 0.467 5.6 0.451 :15 5.6 4.4 7.5 5.8 5.7 :30 5.5 4.8 4.8 7.5 5.8 5.5 I :45 5.3 4.8 7.5 5.7 5.8 '18:00 5.4 0.422 4.7 0.333 7.5 0.627 5.7 0.477
5.6 0.464 :15 5.4 4.8 7.5 5.9 5.8 " :30 5.4 4.8 7.5 5.9 5.7 I :45 5.5 4.5 7.5 6.0 5.8 19:00 5.2 0.397 4.6 0.334 7.5 0.627 5.9 0.480 5.5 0.438 :15 5.3 4.6 7.5 5.4 ; 1 :30 5.2 5.0 7.5
5.8 5.6 i 1 :45 5.2 4.6 7.5 5.9 5.7 20:00 5.2 0.339 4.7 0.305 7.5 0.627 5.7 0.455 5.8 0.448 1 : 15 4.5 4.6 7.5 5.9 5.6 I :30 4.7 4.3 7.5 5.4 5.6 :45 4.6 4.4 7.5 5.7 5.5 21:00 4.6 0.334
4.6 0.317 7.5 0.626 0.479 5.7 0.450 1 :15 4.9 4.5 7.5 6.1 5.6 :30 4.7 4.5 7.5 5.7 5.5 :45 4.6 4.6 7.5 5.7 5.7 22:00 4.7 0.312 4.3 0.310 7.5 0.627 5.9 0.461 5.2 0.435, r1 :15 4.6 4.5
7.5 5.9 5.6 :30 4.4 4.2 7.5 5.5 5.6 :45 4.4 5.0 7.5 5.6 5.6 ,23:00 i, 4.6 0.296 4.4 0.308 7.5 0.627 5.2 0.416 5.4 0.422 I I :15 4.4 4.8 7.5 5.4 5.6 i :30 4.1 4.4 7.5 5.5 5.3 :45 4.5
4.4 7.5 5.4 5.4 . , i lTOT RAIN: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TOT FLOI.': 0.362 0.317 0.474 0.528 0.429 )MMIN FLI.': 5:45 0.186 4:00 0.186 2:45 0.603 3:15 0.255 jMIN FLOI.': 23:30
0.255 5:45 0.186 0.186 4:00 0.186 23:00 0.390 3:15 0.255 MAX FLOI.': 17:15 0.439 14:30 0.478 14:00 0.629 3:30 0.628 11 :00 0.524 lDEPTH SENSOR USED: Ultrasonic I'-:1, II \·-'1
08/30/90 ADS SERVICES, INC. 􀀱􀀭􀁾􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀁐􀀭􀁉􀀭􀁐􀀭􀁅􀀭􀁄􀀭􀁉􀀭􀁁􀁍􀀭􀁅􀀭􀁔􀀭􀁅􀁒􀀭􀀺􀀭􀀸􀀭􀀮􀀰􀀭􀀰􀀭􀁏􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀁐􀁒􀀭􀁏􀀭􀁊􀀭􀁅􀁃􀀭􀁔􀀭􀀺􀀭􀁆􀀭�
�􀀭􀁒􀁍􀀭􀁂􀀭􀁒􀀭􀁁􀁎􀀭􀁾 II10 1: @CREEK EASEMENT Y. OF ALPHA PIPE SHAPE: CIRCULAR SITE: RH02 1.,-" 10 2: FARMERS BRANCH, TEXAS ENERGY GRADIENT: 5.763 RAIN GAUGE: RG01 BASIN: RAYHIDE
CREEK MUD: 0.00 PEAK CAPACITY: 0.634 I SUNDAY MONDAY TUESDAY YEDNESDAY THURSDAY FRIDAY SATURDAY :-> I 7/8/90 7/9/90 7/10/90 7/11/90 7/12/90 7/13/90 7/14/90 RAIN DEPTH FLOY RAIN DEPTH
FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY (in) (in) (mgd) (in) (in) (mgd) (in) (in)' (mgd) (in) (in) (mgd)(in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) -. 6.2 0.483 6.3 0.518 6.2 6.3 6.0 0.395 5.7 0.449 5.6 5.6 5.6 0.385 5.2 0.407 5.4 5.2 5.3 0.386 5.4 0.403 5.3 5.2 5.3 0.360 5.3 0.346
iI ',0:00 5.2 , . : 15 5.2 :30 5.2 1--:45 5.2 I ,1 :00 5.2 :15 5.2 :30 5.2 r-' :45 5.0 2:00 5.2 : 15 5.2 ---." :30 5.1 :45 5.0 3:00 4.9 :15 5.1 I􀀭􀁾 :30 4.9 :45 4.8 ! 4:00 5.0 :15 4.8
I -., :30 5.1 \ :45 5.0 5:00 5.0 :15 4.8 :30 4.9 :45 5.1 6:00 5.0 :15 4.9 :30 5.3 :45 5.3 7:00 5.4 􀁉􀁾 :15 5.6 :30 5.6 :45 5.2 8:00 5.6 11 I :15 5.9 ! :30 5.7 :45 6.0 " 9:00 5.7 : 15
5.7 :30 6.2 :45 6.0 ( "110:00 6.0 I :15 6.0 I I :30 6.0 :45 5.9 \ -r, 1:00 5.9 I :15 6.0 I :30 5.9 11 :45 5.9 L. I : 0.367 0.364 0.386 0.426 0.469 0.481 0.491 4.3 5.0 0.377 5.1 5.0 5.2
5.3 0.377 5.0 4.9 5.0 5.8 0.454 5.5 5.7 5.7 5.9 0.472 5.9 5.7 5.7 6.0 0.515 6.2 6.2 6.3 6.2 0.524 6.4 6.2 6.2 6.1 0.515 0.05 0.38 0.09 0.04 0.04 0.05 0.02 0.01 0.01
SUNDAY MONDAY TUESDAY YEDNESDAY THURSDAY FRIDAY SATURDAY 7/8/90 7/9/90 7/10/90 7/11/90 7/12/90 7/13/90 7/14/90 RAIN DEPTH FLaY RAIN DEPTH FLaY RAIN DEPTH FLaY RAIN DEPTH FLaY RAIN DEPTH
FLaY RAIN DEPTH FLaY RAIN DEPTH FLaY (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) ,-12:00 6.1 0.489 6.4 0.520 I. I
:15 5.9 6.1 I :30 5.9 6.1 :45 5.9 6.4 I 13:00 5.7 0.462 I :15 5.7 :30 5.7 I :45 5.8 14:00 5.7 0.461 : 15 5.7 :30 5.7 :45 5.8 15:00 5.5 0.459 :15 5.6 :30 5.8 :45 5.9 ·16:00 5.8 0.450
: 15 5.6 --:30 5.6 II:45 5.6 17:00 5.6 0.459 : 15 5.7 :30 5.8 :45 5.6 18:00 5.4 0.439 5.4 0.411 : 15 5.7 5.2 i :30 5.5 5.4 , :45 5.6 5.3 I 19:00 5.6 0.450 5.5 0.421 : 15 5.6 5.4 :30
5.6 5.3 :45 5.7 5.4 20:00 5.6 0.445 5.6 0.402 : 15 5.6 5.0 :30 5.7 5.6 :45 5.6 4.9 21:00 5.7 0.451 5.2 0.396 r ' : 15 5.6 5.1 I :30 5.7 5.3 I :45 5.6 5.2 22:00 5.9 0.454 5.3 0.375 :
15 5.6 5.2 :30 5.7 4.8 :45 5.5 4.9 23:00 5.7 0.437 4.8 0.360 :15 5.5 5.3 I , :30 5.4 4.7 :45 5.6 4.8 "lTOT RAIN: 0.00 0.00 0.00 0.00 0.69 0.00 0.00 TOT FLaY: 0.435 0.454 0.394 􀀧􀁾􀁍􀁉􀁎
FLY: 3:45 0.340 3:45 0.287 􀁾􀁉􀁎 FLaY: 3:45 0.340 3:45 0.287 23:30 0.335 MAX FLaY: 9:30 0.515 12:00 0.541 20:30 0.444 ifEPTH SENSOR USED: ULtrasonic il [ I
08/30/90 ADS SERVICES, INC. I ---I I I I PIPE DIAMETER: 8.000 PROJECT: FARMBRAN II ID 1: Q CREEK EASEMENT Y. OF ALPHA PIPE SHAPE: CIRCULAR SITE: RH02 10 2: FARMERS BRANCH, TEXAS ENERGY
GRADIENT: 5.763 RAIN GAUGE: RG01 BASIN: RAYHIDE CREEK MUD: 0.00 PEAK CAPACITY: 0.634 I il SUNDAY MONDAY TUESDAY YEDNESDAY THURSDAY FRIDAY SATURDAY 7/15/90 7/16/90 7/17/90 7/18/90 7/19/90
7/20/90 7/21/90 RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY (in) (in) (mgd) (in) (in) (mgd) (in) (in) . (mgd) (in)
(in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 11 0: 00 4.7 0.326 4.6 0.323 5.0 0.344 5.2 0.385 5.3 0.405 4.8 0.348 5.3 0.352 . : 15 4.6 4.8 4.9 5.1 5.2 5.2 4.9 :30 4.7 4.7
4.5 5.1 5.3 4.8 4.4 il :45 4.6 4.4 4.7 5.2 5.4 4.4 r 1:00 4.7 0.327 4.6 0.296 5.1 0.356 5.0 0.370 5.2 0.385 5.1 0.364 2.6 0.185 i : 15 4.5 4.4 4.8 5.2 5.2 5.2 :30 4.6 4.6 4.9 4.9 5.0
4.8 2.0 Il :45 4.8 4.0 4.8 4.9 5.2 4.7 5.0 ! ,2:00 4.4 0.283 4.4 0.287 4.7 0.322 4.8 0.337 5.2 0.337 5.0 0.314 5.1 0.325 :15 4.4 4.4 4.7 4.8 4.6 4.4 5.3 Il. :30 4.2 4.3 4.4 4.7 4.7 4.5
2.7 :45 4.1 4.3 4.6 4.6 4.5 4.2 5.2 i 13:00 3.9 0.259 4.3 0.236 4.6 0.306 4.8 0.326 4.8 0.327 3.9 0.203 3.9 0.115 :15 4.1 3.3 4.3 4.7 4.2 3.8 i--I :30 4.3 4.1 4.4 4.8 4.7 3.6 2.4 I :45
4.1 3.9 4.6 4.4 4.9 3.0 1.1 4:00 4.1 0.238 3.7 0.246 4.6 0.314 4.5 0.300 2.4 0.277 4.3 0.293 0.7 0.139 :15 3.9 4.1 4.3 4.3 4.6 4.7 2.8 'I :30 3.7 4.1 4.4 4.4 5.0 4.7 3.0 :45 4.0 3.9
4.8 4.5 4.6 3.8 4.2 5:00 4.3 0.279 4.1 0.271 4.9 0.349 4.2 0.308 4.8 0.303 3.8 0.293 5.2 0.338 11 : 15 4.1 4.3 4.7 4.3 2.4 4.2 3.8 :30 4.4 4.1 4.7 4.7 5.0 4.6 4.8 :45 4.2 4.3 5.0 4.8
5.2 4.8 5.0 6:00 4.3 0.314 4.2 0.366 5.2 0.448 5.0 0.439 5.2 0.446 4.7 0.390 5.0 0.364 1:15 4.6 5.2 5.4 5.5 5.7 5.1 5.0 :30 4.5 0.01 5.1 6.0 5.7 5.7 5.2 4.8 :45 4.8 0.14 5.4 5.9 6.0
5.8 5.6 5.0 7:00 4.3 0.344 0.04 5.5 0.445 5.9 0.504 5.7 0.490 6.1 0.507 6.1 0.470 5.4 0.410 [1 :15 4.9 5.6 6.1 6.2 5.7 5.0 :30 4.8 5.6 6.2 5.9 6.1 5.2 :45 5.2 5.7 6.1 6.1 6.1 5.6 5.6
8:00 5.0 0.405 5.6 0.458 6.0 0.503 6.0 0.497 6.0 0.528 5.6 0.510 5.3 0.422 11 :15 5.2 5.5 0.01 6.2 6.0 6.1 5.8 5.4 I.. :30 5.3 5.7 6.0 6.0 5.9 7.5 5.6 :45 5.6 6.1 6.1 7.6 6.0 5.4 19:00
5.7 0.450 6.0 0.522 6.2 0.585 6.1 0.557 6.1 . 0.577 5.9 0.493 5.6 0.410 : 15 5.9 6.1 7.6 6.2 6.4 5.8 3.7 :30 5.4 6.2 6.7 7.6 7.6 6.2 4.8 :45 5.6 6.7 7.6 6.8 7.6 6.1 7.6 r:OO 5.6 0.432
6.4 0.520 7.6 0.628 5.6 0.545 7.6 0.629 7.2 0.622 7.2 0.593 : 15 5.6 6.4 7.5 7.6 7.6 7.3 6.4 :30 5.4 6.0 7.5 6.4 7.6 7.6 7.6 :45 5.4 6.1 7.6 6.7 7.6 7.6 '111 :00 5.8 0.491 6.1 0.514
7.0 0.617 6.7 0.611 7.4 0.628 7.5 0.627 5.2 0.440 : 15 6.2 6.3 7.5 7.5 7.6 7.6 6.2 :30 6.1 6.2 7.6 7.4 7.6 7.5 5.7 I :45 5.8 6.1 7.2 7.6 7.5 7.5 5.1 1'.'1, lc
SUNDAY MONDAY TUESDAY YEDNESDAY THURSDAY FRIDAY SATURDAY I , 7/15/90 7/16/90 7/17/90 7/18/90 7/19/90 7/20/90 7/21/90 RAIN DEPTH FLaY RAIN DEPTH FLaY RAIN DEPTH FLaY RAIN DEPTH FLaY RAIN
DEPTH FLaY RAIN DEPTH FLaY RAIN DEPTH FLaY I (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) Il2:00 5.2 0.445 6.0 0.501
6.8 0.580 6.7 0.599 7.6 0.524 7.5 0.627 5.7 0.492 :15 6.1 6.0 6.7 6.6 . 4.8 7.6 5.7 :30 5.8 6.2 0.02 7.6 5.9 7.6 7.7 :45 5.4 6.1 0.02 6.9 7.6 7.6 7.5 5.4 113: 00 5.7 0.468 5.7 0.502
0.01 7.6 0.559 7.6 0.631 7.6 0.629 7.6 0.628 5.2 0.518 i. : 15 6.0 6.9 7.6 7.6 7.6 7.5 5.5 :30 5.8 6.0 5.8 . 7.7 7.6 7.6 7.5 11 :45 5.6 5.7 6.1 7.6 7.6 7.6 4:00 5.9 0.471 5.7 0.438 6.4
0.559 7.6 0.618 7.6 0.608 6.5 0.609 6.2 0.463 ! : 15 5.9 5.3 7.5 7.6 7.6 7.6 5.6 11 :30 6.0 5.6 6.4 7.5 6.4 7.6 5.6 :45 5.5 5.6 6.3 6.9 7.6 7.6 5.6 ! 5:00 5.6 0.427 5.6 0.297 6.1 0.530
7.6 0.629 6.7 0.533 7.6 0.628 5.2 0.357 , : 15 5.6 3.9 6.9 7.5 5.9 7.6 4.7 :30 5.2 4.1 6.0 7.6 6.1 7.5 5.2 !l :45 5.3 3.9 6.3 7.6 6.9 7.5 4.5 1'6:00 5.5 0.428 4.1 0.252 6.0 0.506 7.6
0.594 7.5 0.600 7.6 0.628 4.2 0.310 : 15 5.2 4.0 6.1 5.9 7.6 7.5 4.5 _ :30 5.9 4.0 6.1 0.22 7.6 7.6 7.6 4.0 li .1·45 5.3 4.1 6.2 0.45 7.6 6.2 7.6 5.4 7;00 5.5 0.401 3.9 0.207 5.9 0.497
0.28 7.6 0.568 5.8 0.485 7.6 0.554 5.1 0.361 :15 5.2 3.7 6.2 0.04 7.6 5.9 7.6 4.5 i1 􀀺􀁾􀁾 5.3 3.2 6.0 0.01 6.1 5.9 7.5 5.0 5.0 3.7 6.0 6.1 6.1 4.7 5.1 l 18:00 5.1 0.407 3.7 0.200 6.0
0.506 6.1 0.555 6.0 0.497 7.6 0.560 5.0 0.370 :15 5.5 3.4 6.2 0.01 6.8 6.0 7.5 5.2 11 :30 5.5 3.5 6.0 7.6 5.8 7.1 4.8 :45 5.2 3.6 6.2 6.1 6.2 5.1 5.1 19:00 4.9 0.380 3.7 0.280 5.9 0.494
7.6 0.523 5.8 0.479 5.5 0.324 5.0 0.381 : 15 5.1 4.1 5.9 6.2 6.0 5.3 5.2 I 1:30 5.1 3.7 6.1 5.9 5.9 2.9 5.3 ! :45 5.2 ,5.6 6.1 5.7 5.7 4.8 20:00 4.8 0.364 5.9 0.448 5.8 0.484 6.1 0.473
5.6 0.457 4.8 0.382 5.2 0.407 1: 15 5.1 5.8 6.0 5.8 5.9 5.8 5.4 :30 4.8 5.4 5.9 5.6 5.6 4.7 5.5 :45 5.0 5.4 0.01 5.9 5.9 5.7 5.0 5.1 21:00 5.5 0.407 5.4 0.427 0.01 6.0 0.499 5.7 0.464
5.9 0.457 5.8 0.392 5.2 0.332 r 1: 15 5.3 5.6 6.2 5.7 5.7 4.4 5.1 I :30 5.2 5.4 5.9 5.7 5.6 5.7 3.6 i :45 5.2 5.4 6.0 5.9 5.7 4.8 4.8 22:00 4.8 0.375 5.1 0.429 5.6 0.449 5.6 0.463 5.3
0.437 4.8 0.360 4.7 0.392 it :15 5.2 5.7 5.6 5.5 5.6 4.8 5.6 :30 5.0 5.1 5.8 6.0 5.7 5.1 5.4 :45 5.2 5.9 5.5 5.9 5.5 5.0 5.1 r:OO 4.8 0.350 5.2 0.390 5.5 0.418 5.4 0.422 5.6 0.416 5.2
0.337 5.1 0.375 :15 4.8 5.2 5.5 5.5 5.7 4.5 4.9 :30 4.8 5.2 5.4 5.5 5.3 4.3 :45 4.8 5.0 5.2 5.3 4.9 4.9 5.2 lOT RAIN: 0.00 0.19 0.08 1.01 0.00 0.00 0.00 TOT FLaY: 0.378 0.369 0.471 0.488
0.478 0.456 0.371 JMIN FLY: 4:30 0.211 3:15 0.174 3:15 0.283 5:00 0.273 4:00 0.091 3:45 0.144 4:00 0.008 . IN FLaY: 4:30 0.211 17:30 0.163 3:15 0.283 5:00 0.273 4:00 0.091 19:30 0.137
4:00 0.008 MAX FLaY: 11:15 0.520 13:15 0.591 9:45 0.631 13:30 0.632 8:45 0.631 10:30 0.629 12:30 0.632 r,tEPTH SENSOR USED: ut trasoni c II I
08/30/90 ADS SERVICES, INC. 􀁬..􀀭􀁾II PIPE OIAMETER: 8.000 I PROJECT: FARMBRAN I ID 1: @CREEK EASEMENT 􀁾􀀮 OF ALPHA PIPE SHAPE: CIRCULAR SITE: RH02 Il ID 2: FARMERS BRANCH, TEXAS ENERGY
GRADIENT: 5.763 RAIN GAUGE: RG01 BASIN: 􀁒􀁁􀁾􀁈􀁉􀁄􀁅 CREEK MUD: 0.00 PEAK CAPACITY: 0.634 SUNDAY MONDAY TUESDAY 􀁾􀁅􀁄􀁎􀁅􀁓􀁄􀁁􀁙 THURSDAY FRIDAY SATURDAY il 7/22/90 7/23/90 7/24/90
7/25/90 7/26/90 7/27/90 7/28/90 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAI NDEPTH 􀁆􀁌􀁏􀁾 RAIN OEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 (in) (in)
(mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) :10:00 0.302 5.2 0.313 7.6 0.631 7.7 0.632 5.9 0.460 5.9 0.481 6.1 0.508 , : 15
4.2 4.7 7.6 7.7 5.7 5.8 6.1 :30 4.7 0.11 3.6 7.6 7.7 5.9 6.1 6.3 Il :45 4.4 7.7 7.7 5.4 5.8 6.1 i 1:00 5.4 0.297 5.3 0.395 0.577 7.7 0.632 5.3 0.424 5.6 0.451 5.5 0.463 , : 15 5.3 0.01
5.2 7.7 5.5 5.7 5.7 :30 3.5 0.01 5.2 6.8 7.7 5.5 5.6 5.9 IJ :45 3.2 5.1 6.8 7.7 5.4 5.6 5.9 , 2:00 3.4 0.339 5.2 0.333 6.8 0.580 7.7 0.611 5.8 0.462 5.6 0.438 5.6 0.419 ,. -: 15 5.1
5.3 6.8 7.6 5.9 5.6 5.6 , :30 5.2 2.8 6.8 5.8 5.6 5.2 il :45 5.2 0.01 5.3 6.8 6.7 5.5 5.5 5.2 I. 3:00 4.1 0.294 5.3 0.339 6.6 0.560 7.3 0.615 5.4 0.410 5.5 0.412 5.1 0.410 :15 4.1 0.01
3.1 6.7 7.2 5.6 5.5 5.3 il :30 5.0 0.01 5.1 6.5 7.2 5.0 5.4 5.3 'i :45 4.4 5.3 6.5 7.3 5.2 4.9 5.6 : . 4:00 3.2 0.268 5.0 0.391 6.8 0.571 7.3 0.620 5.9 0.453 5.0 0.389 5.3 0.407 : 15
4.0 5.3 6.5 7.3 5.9 5.2 5.4 :30 4.8 5.1 6.5 7.6 5.1 5.4 5.2 :45 4.6 5.3 7.1 7.3 5.7 5.0 5.3 I 5:00 4.6 0.297 5.1 0.408 7.3 0.619 7.3 0.364 5.8 0.457 5.3 0.416 5.2 0.408 : 15 4.5 5.5
7.6 5.5 5.2 5.2 I 1:30 4.1 5.4 7.3 4.0 5.6 5.2 5.4 ! :45 4.4 5.3 7.2 3.8 6.0 5.7 5.4 I 6:00 3.6 0.342 5.5 0.435 7.7 0.632 3.5 0.277 6.7 0.612 6.0 0.575 5.6 0.440 1: 15 5.2 5.4 7.7 4.2
7.6 7.0 5.5 :30 5.0 5.5 7.7 7.5 6.8 5.6 :45 5.2 5.7 7.7 4.9 7.5 7.6 5.6 7:00 5.4 0.426 5.8 0.475 7.7 0.632 5.5 0.518 7.5 0.627 7.6 0.629 5.4 0.504 r-1 :15 5.6 5.5 7.7 6.2 7.5 7.6 6.2
:30 5.1 5.7 7.7 7.5 7.5 7.6 5.9 :45 5.7 6.4 0.01 7.7 6.1 7.5 7.6 6.9 8:00 5.6 0.439 6.1 0.494 7.6 0.626 6.3 0.572 7.5 0.627 7.6 0.629 6.9 0.617 I : 15 5.6 5.9 7.5 6.1 7.6 7.6 7.6 :30
5.3 6.0 7.4 7.6 7.5 7.6 7.5 :45 5.6 6.0 7.6 7.4 7.5 7.6 7.6 1900 5.6 0.470 6.0 0.490 7.4 0.623 7.6 0.628 7.5 0.627 7.6 0.629 7.6 0.629 : 15 5.6 5.8 7.4 7.4 7.5 7.6 7.6 :30 5.7 6.0 7.4
7.6 7.5 7.6 7.6 :45 6.3 6.1 7.5 7.6 7.5 7.6 7.6 I "r:OO 4.8 0.381 6.1 0.504 7.6 0.628 7.6 0.629 7.6 0.628 7.6 0.629 7.6 0.628 :15 5.3 6.2 7.6 0.03 7.6 7.6 7.6 7.6 :30 5.2 6.1 7.6 7.6
7.6 7.6 7.6 :45 5.1 6.0 7.5 7.6 7.5 7.6 7.6 r:oo 5.2 0.413 5.9 0.497 7.5 0.627 7.6 0.630 7.5 0.627 7.6 0.629 7.6 0.628 :15 5.4 6.0 7.5 7.6 7.6 7.6 7.6 :30 5.6 6.1 7.5 7.6 7.5 7.6 7.6
:45 5.2 6.1 7.6 7.6 7.5 7.6 7.6 111I
SUNDAY MONDAY TUESDAY YEDNESDAY THURSDAY FRIDAY SATURDAY I 7/22/90 7/23/90 7/24/90 7/25/90 7/26/90 7/27/90 7/28/90 I [ RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY
I RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) Il12:00 5.6 0.432 0.546
7.7 0.630 7.6 0.630 7.5 0.627 7.6 0.629 7.6 0.628 :15 5.3 6.2 7.7 7.6 7.6 7.6 7.6 :30 5.7 6.0 7.6 7.6 7.5 7.6 7.6 :45 5.3 7.5 7.6 7.6 7.6 7.6 7.6 il13 : OO 5.8 0.446 5.8 0.487 7.7 0.632
7.6 0.631 7.5 0.627 7.6 0.629 7.6 0.628 I : 15 5.5 5.9 7.7 7.6 7.5 7.6 7.6 :30 5.7 6.1 7.7 . 7.6 7.6 7.6 7.6 il :45 5.5 5.9 7.7 7.6 7.6 7.6 7.6 14 :OO 5.3 0.435 5.8 0.478 0.11 7.7 0.632
7.6 0.630 7.6 0.628 7.6 0.628 7.6 0.628 : 15 5.4 5.8 0.01 7.7 7.6 7.5 7.6 7.6 :l :30 5.6 5.8 7.7 7.6 7.6 7.6 7.6 :45 0.10 5.8 6.1 7.7 7.5 7.6 7.6 7.6 : 15 :00 5.5 0.416 5.9 0.482 7.7
0.632 7.6 0.631 7.5 0.628 7.6 0.629 7.6 0.628 ! : 15 5.6 5.9 7.7 7.6 7.6 7.6 7.5 :30 0.03 5.2 5.9 7.7 7.6 7.5 7.6 7.6 􀀺􀀬􀁬􀀱􀀶􀀻􀁾􀁾 5.2 5.9 7.7 7.6 7.6 7.6 7.6 5.9 0.440 5.9 0.442
7.7 0.632 7.6 0.629 7.6 0.629 7.6 0.629 7.6 0.628 : 15 5.6 6.0 7.7 7.6 7.6 7.6 7.6 :30 5.3 5.5 7.7 7.6 7.6 7.6 7.6 il :45 5.5 4.9 7.7 7.6 7.6 7.6 7.6 l 17:00 5.6 0.473 5.2 0.566 7.7
0.632 7.6 0.630 7.6 0.628 7.6 0.629 7.5 0.628 :1:15 5.7 7.6 7.7 7.6 7.6 7.6 7.6 :30 6.1 7.1 7.7 7.6 7.6 7.6 7.5 :45 6.0 7.7 7.7 7.6 7.6 7.6 7.6 . 18:00 5.8 0.442 7.3 0.615 7.7 0.632
7.6 0.630 7.5 0.628 7.6 0.629 7.6 0.607 :15 5.7 7.1 7.7 7.6 7.6 7.6 6.9 11 :30 5.2 7.3 7.7 7.6 7.6 7.6 7.6 , :45 5.6 7.5 7.7 7.6 7.6 7.6 6.9 : 19:00 5.5 0.387 7.6 0.631 7.7 0.632 7.6
0.629 7.6 0.628 7.6 0.629 6.8 0.602 : 15 5.4 7.6 7.7 7.6 7.6 7.6 6.7 I :30 4.9 7.6 7.7 7.6 7.6 7.6 7.5 :45 4.8 7.6 7.7 7.6 7.5 7.6 7.6 20:00 5.1 0.412 7.6 0.631 7.7 0.632 7.6 0.628 7.5
0.628 7.6 0.629 6.8 0.591 : 15 5.5 7.6 7.7 7.6 7.6 7.6 6.9 :30 5.4 7.6 7.7 7.5 7.6 7.6 7.1 :45 5.4 7.6 7.7 7.5 7.6 7.6 6.9 21:00 5.5 0.418 7.6 0.631 7.6 0.631 7.5 0.590 7.6 0.627 7.6
0.628 7.6 0.591 :15 5.6 5.6 7.6 0.01 7.6 7.4 7.6 7.5 7.0 :30 5.6 7.6 7.6 7.6 7.5 7.6 6.7 :45 4.8 7.7 7.7 5.9 7.5 7.6 6.7 22:00 4.7 0.394 7.7 0.631 7.7 0.632 5.6 0.583 6.9 0.617 6.8 0.606
5.9 0.497 J : 15 5.6 7.6 7.7 7.5 7.4 6.9 6.1 :30 5.3 7.6 7.7 7.6 7.6 7.6 6.2 :45 5.2 7.7 7.7 7.6 7.5 7.6 5.9 123: 00 5.4 0.374 7.7 0.631 7.7 0.632 7.5 0.574 7.6 0.547 7.6 0.628 6.5 0.526
:15 5.1 7.6 7.7 7.6 6.1 7.6 6.2 :30 5.2 7.6 7.7 5.8 6.4 7.6 6.3 :45 4.5 7.7 7.7 6.2 7.6 6.1 I II TOT RAIN: 0.13 0.16 0.14 0.03 0.00 0.00 0.00 TOT FLOY: 0.390 0.495 0.621 0.595 0.577
0.576 0.552 tMMIN FLY: 1:45 0.163 2:30 0.130 3:30 0.550 6:00 0.199 3:30 0.375 3:45 0.360 3:00 0.385 MIN FLOY: 1:45 0.163 2:30 0.130 3:30 0.550 6:00 0.199 3:30 0.375 3:45 0.360 3:00 0.385
MAX FLOY: 9:45 0.533 17:45 0.632 0:45 0.632 0:00 0.632 6:15 0.629 6:45 0.629 8:45 0.629 I ) DEPTH SENSOR USED: Ul trasoni c I 1
08/30/90 ADS SERVICES, INC. I ij I PIPE DIAMETER: 8.000 PROJECT: FARMBRAN I ID 1: @CREEK EASEMENT 􀁾􀀮 OF ALPHA PIPE SHAPE: CIRCULAR SITE: RH02 \l ID 2: FARMERS BRANCH, TEXAS ENERGY
GRADIENT: 5.763 RAIN GAUGE: RG01 BASIN: 􀁒􀁁􀁾􀁈􀁉􀁄􀁅 CREEK MUD: 0.00 , PEAK CAPACITY: 0.634 SUNDAY MONDAY TUESDAY 􀁾􀁅􀁄􀁎􀁅􀁓􀁄􀁁􀁙 THURSDAY FRIDAY SATURDAY rl 7/29/90 1/30/90 7/31/90
8/1/90 8/2/90 8/3/90 8/4/90 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH FLO\J RAIN DEPTH 􀁆􀁌􀁏􀁾 (in) (in) (mgd) (in)
(in) (mgd) (in) (in)' (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 110:00 6.2 0.506 5.7 0.455 5.5 0.426 5.3 0.376 5.4 0.415 6.7 0.504 5.9 0.461 , :15 6.2 5.8
5.0 5.5 5.8 5.9 :30 6.1 5.3 5.5 4.8 5.4 6.2 5.6 11 :45 5.9 5.9 5.3 5.0 5.1 5.7 5.5 ! 1:00 6.2 0.463 5.2 0.439 5.4 0.430 5.0 0.338 5.0 0.374 5.6 0.469 5.6 0.402 , :15 5.6 5.7 6.0 4.7
5.0 5.9 5.4 :30 5.6 5.6 5.4 4.6 5.0 5.7 4.9 11 :45 5.6 5.7 5.2 4.7 5.0 5.9 5.2 !j 2:00 5.1 0.411 5.4' 0.402 5.4 0.406 4.8 0.339 5.0 0.365 5.8 0.463 5.0 0.361 '. : 15 5.4 5.4 5.1 4.7
5.2 6.1 5.0 :30 5.5 5.2 5.4 5.0 4.8 5.4 4.9 1:45 5.3 5.1 5.2 4.6 4.8 5.7 4.8 3:00 5.6 0.406 5.3 0.400 4.8 0.371 4.4 0.292 4.6 0.312 5.9 0.446 5.1 0.351 : 15 5.2 5.2 4.8 4.4 4.4 5.5 4.6
-1 :30 5.3 5.3 5.4 4.4 4.4 5.5 4.8 I :45 5.0 5.2 4.9 4.2 4.7 5.6 4.8 4:00 5.8 0.432 5.1 0.406 5.2 0.392 4.6 0.317 4.7 0.327 5.6 0.451 4.9 0.349 :15 5.4 5.4 5.2 4.5 4.6 5.6 4.8 i 1 :30
5.4 5.4 5.0 4.3 4.6 5.6 4.8 i I :45 5.4 5.3 5.3 4.9 4.8 5.8 0.01 4.7 , 5:00 5.4 0.407 4.9 0.409 5.4 0.418 4.8 0.355 4.5 0.348 5.7 0.501 4.9 0.391 :15 5.2 5.2 5.2 5.0 4.7 5.8 5.0 I :30
5.2 5.5 5.4 4.9 5.1 6.1 0.01 5.3 :45 5.4 5.7 5.6 4.9 5.0 6.8 0.07 5.5 6:00 5.0 0.413 5.6 0.492 5.9 0.508 5.0 0.448 5.5 0.476 7.2 0.625 0.01 5.7 0.488 f' I:15 5.7 6.2 5.8 5.6 5.9 7.6
0.01 6.1 i :30 5.3 6.2 6.0 5.9 5.8 7.6 6.2 i :45 5.4 5.9 6.9 6.0 6.2 7.6 5.8 7:00 5.4 0.465 6.1 0.568 7.5 0.629 6.9 0.618 6.8 0.603 7.6 0.629 0.12 5.7 0.493 r] :15 6.1 6.1 7.6 7.6 6.8
7.6 0.01 6.2 :30 5.4 7.6 7.6 7.6 7.6 7.4 7.6 0.01 6.2 :45 6.3 7.5 7.6 7.6 7.6 7.6 0.07 5.9 8:00 6.5 0.607 7.6 0.629 7.6 0.629 7.6 0.618 7.6 0.629 7.6 0.629 0.02 6.1 0.568 I: 15 7.5 7.5
7.6 6.9 7.6 7.6 0.03 6.8 :30 7.5 7.6 7.6 7.6 7.6 7.6 0.01 6.6 :45 7.6 7.6 7.6 7.6 7.6 7.6 7.6 J9:00 7.6 0.627 7.6 0.629 7.6 0.629 7.6 0.630 7.6 0.629 7.6 0.629 7.6 0.629 :15 7.5 7.6
7.6 7.6 7.6 7.6 0.02 7.6 :30 7.4 7.6 7.6 7.6 7.6 7.6 0.05 7.6 :45 7.6 7.6 7.6 7.6 7.6 7.6 0.01 7.6 I, r:oo 7.6 0.629 7.6 0.629 7.6 0.630 7.6 0.629 7.6 0.629 7.6 0.629 0.03 7.6 0.628
:15 7.5 7.6 7.6 7.6 7.6 7.6 0.03 7.6 :30 7.6 7.6 7.6 7.6 7.6 7.6 0.01 7.6 :45 7.6 7.6 7.6 7.6 7.6 7.6 7.6 r:OO 7.6 0.629 7.6 0.629 7.6 0.631 7.6 0.629 7.6 0.629 7.6 0.629 7.6 0.628 :15
7.6 7.6 7.6 7.6 7.6 7.6 7.6 :30 7.6 7.6 7.6 7.6 7.6 7.6 7.6 :45 7.6 7.6 7.6 7.6 7.6 7.6 7.6 1 I 1 IL
SUNDAY MONDAY TUESDAY \.JEDNESDAY THURSDAY FRIDAY SATURDAY I 7/29/90 7/30/90 7/31/90 8/1/90 8/2/90 8/3/90 8/4/90 RAIN DEPTH FLO\.J RAIN DEPTH FLO\.J RAIN DEPTH FLO\.J RAIN DEPTH FLO\.J
RAIN DEPTH FLO\.J RAIN DEPTH FLO\J RAIN DEPTH FLO\.J I (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) Il12:00 7.6 0.627
7.6 0.629 7.6 0.630 7.6 0.629 7.6 0.629 7.6 0.629 7.6 0.628 I :15 7.6 7.6 7.6 7.6 7.6 7.6 7.5 :30 7.5 7.6 7.6 7.6 7.6 7.6 7.6 :45 7.4 7.6 7.6 7.6 7.6 7.6 7.6 rl13:00 7.6 0.612 7.6 0.629
7.6 0.631 7.6 0.629 7.6 0.629 7.6 0.628 7.6 0.628 II :15 7.6 7.6 7.6 7.6 7.6 7.6 7.6 :30 6.7 7.6 7.6 7.6 7.6 7.6 7.6 l :45 7.5 7.6 7.6 7.6 7.6 7.6 7.6 [ . 14:00 7.6 0.628 7.6 0.629 7.6
0.630 7.6 0.629 7.6 0.629 7.6 0.628 7.6 0.628 " : 15 7.6 7.6 7.6 7.6 7.6 7.6 7.6 :30 7.4 7.6 7.6 7.6 7.6 0.57 7.6 7.6 ·1 ·45 7.6 7.6 7.6 7.6 7.6 7.6 7.6 I. 􀀱􀀵􀁾􀀰􀀰 6.7 0.612 7.6 0.628
7.6 0.630 7.6 0.629 7.6 0.629 7.6 0.628 7.6 0.629 :15 7.6 7.6 7.6 7.6 7.6 7.6 7.6 :30 7.4 7.6 7.6 7.6 7.6 7.6 7.6 il :45 0.02 7.5 7.5 7.6 7.6 7.6 0.01 7.6 7.6 I 116: 00 0.05 7.6 0.527
7.6 0.629 7.6 0.630 7.6 0.629 7.6 0.629 7.6 0.628 7.6 0.628 :15 6.1 7.6 7.6 7.6 7.6 7.6 7.6 :30 6.1 7.6 7.6 7.6 7.6 7.6 7.6 II :45 5.8 7.6 7.6 7.6 7.6 7.6 7.6 i 117:00 6.7 0.526 7.6
0.615 7.6 0.629 7.6 0.618 7.7 0.630 7.6 0.586 7.6 0.618 : 15 6.9 7.6 7.6 7.6 7.6 7.6 7.6 Il :30 5.9 7.6 7.6 7.6 7.6 6.9 7.6 i I :45 5.7 6.7 7.6 6.9 7.6 6.0 6.9 I 18:00 5.9 0.549 7.6
0.618 6.7 0.614 7.6 0.629 7.6 0.629 7.6 0.628 7.6 0.627 :15 6.1 7.6 7.6 7.6 7.6 7.6 7.5 11 :30 7.6 7.5 7.6 7.5 7.6 7.6 7.5 I :45 6.9 6.9 7.6 7.6 7.6 7.6 7.5 " 19:00 6.5 0.549 7.6 0.629
7.6 0.629 7.6 0.629 7.6 0.629 7.6 0.628 7.5 0.628 :15 6.7 7.6 7.6 7.6 7.6 7.6 7.6 [' :30 6.7 7.6 7.5 7.6 7.6 7.6 7.6 tI:45 6.1 7.6 7.6 7.6 7.6 7.6 7.6 20:00 6.7 0.602 7.6 0.569 6.7 0.556
7.6 0.549 7.6 0.629 6.8 0.568 7.6 0.629 :15 6.8 6.9 7.6 6.8 7.6 7.6 7.6 :30 7.6 5.9 6.2 5.9 7.6 6.0 7.6 :450.11 7.5 6.7 6.2 6.0 7.6 6.7 7.6 21:00 0.33 7.6 0.501 7.5 0.606 5.9 0.492 6.2
0.550 7.6 0.629 7.6 0.620 7.6 0.627 1 :15 0.15 5.7 6.9 6.2 7.6 0.01 7.6 7.6 7.5 :30 0.02 6.0 7.6 5.9 6.2 0.05 7.6 7.6 7.6 :45 5.4 6.8 5.9 6.4 0.05 7.6 7.0 7.5 22:00 5.7 0.471 6.1 0.542
5.9 0.508 6.3 0.507 0.02 7.6 0.629 6.0 0.584 7.6 0.627 j' : 15 5.6 7.5 6.2 5.9 0.01 7.6 6.9 7.5 :30 5.9 6.1 6.1 6.1 0.01 7.6 7.6 7.5 :45 6.0 6.3 6.3 6.1 7.6 7.5 7.5 123 : 00 5.9 0.475
5.7 0.453 5.4 0.430 5.9 0.462 7.5 0.627 6.1 0.515 7.5 0.627 15 5.9 5.9 5.8 5.8 7.6 6.1 7.5 :30 5.5 5.5 5.7 5.6 7.5 6.3 7.6 :45 6.1 5.6 5.0 5.6 7.6 6.2 7.5 II lTOT RAIN: 0.68 0.00 0.00
0.00 0.15 0.58 0.53 TOT FLO\.J: 0.528 0.553 0.547 0.528 0.554 0.578 0.553 tMMIN FL\.J: 6:00 0.370 5:00 0.360 3:00 0.350 3:45 0.273 3:30 0.292 2:30 0.415 3:15 0.326 MIN FLO\.J: 6:00 0.370
5:00 0.360 3:00 0.350 3:45 0.273 3:30 0.292 2:30 0.415 3:15 0.326 MAX FLO\.J: 10:00 0.631 7:30 0.629 10:30 0.631 8:30 0.631 17:00 0.632 6:15 0.629 20:15 0.631 !DEPTH SENSOR USED: Ultrasonic
I'l II SUNDAY 8/5/90 RAIN DEPTH 􀁆􀁌􀁏􀁾 (in) (in) (mgd) MONDAY 8/6/90 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁏􀁾
(in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) !l12:00 7.6 0.628 7.6 0.629 I .:15 7.6 7.6 :30 7.5 7.6 :45 7.5 7.6 il13:00 6.9 0.618 7.6
0.629 '. : 15 7.6 7.6 '. :30 7.5 7.6 :45 7.5 7.6 \l14:00 7.6 0.612 7.6 0.629 , : 15 7.4 7.6 :30 6.7 7.6 [1 :45 0.01 7.6 7.6 15:00 0.08 7.6 0.628 7.6 0.629 ,. :15 0.06 7.5 7.6 :30 0.03
7.6 7.6 1'1 :45 0.03 7.6 7.6 I 16:00 7.6 0.629 7.6 0.629 ,,' :15 0.01 7.6 7.6 :30 0.02 7.6 7.6 11 :45 0.02 7.6 7.6 I, 17:00 0.01 7.6 0.629 7.6 0.629 :15 7.6 7.6 1 :30 7.6 7.6 :45 7.6
7.6 118:00 7.6 0.629 7.6 0.629 :15 7.6 7.6 , 1 :30 7.6 7.6 :45 7.6 7.6 19:00 7.6 0.629 7.6 0.615 :15 7.6 7.6 1:30 7.6 6.7 :45 7.6 7.6 20:00 7.6 0.629 7.6 0.626 :15 7.6 7.6 ! 1 :30 7.6
7.6 :45 7.6 7.3 21:00 7.6 0.629 7.1 0.558 1 :15 7.6 6.5 :30 7.6 5.9 :45 7.6 6.9 22:00 7.6 0.613 7.6 0.588 I :15 6.7 6.9 I :30 7.6 6.8 :45 7.4 6.6 23:00 7.4 0.615 6.2 0.487 ,1 :15 7.6
5.9 :30 7.6 5.7 :45 6.8 5.9 ITOT RAIN: 0.38 0.00 TOT 􀁆􀁌􀁏􀁾􀀺 0.573 0.582 fMMIN 􀁆􀁌􀁾􀀺 4:30 0.370 3:30 0.439 MIN 􀁆􀁌􀁏􀁾􀀺 4:30 0.370 3:30 0.439 MAX 􀁆􀁌􀁏􀁾􀀺 8:45 0.629 0:00 0.631
!'. J DEPTH SENSOR USED: Ultrasonic I. i]
tIf ,Iri,.. tIllr􀁾l r . 􀁾l '-I iItLL!. lL Site RH03 Flow Monitoring Data and Hydrographs
;A.'n,;es= 1500 Site Report UllIlholc I AN Monitor Ii Servlces. Inc. RH03 6300 R(W'ARD ]f fOUND -􀀨􀀲􀁾 883-93Z3 Project/Ph""c: Farmel"3 Branch, TX 07/04/fJO Namc:BF V-Sensor * Bat Serial
# Press. I-ducer * Dale: Addre.".I1DcaUon: On Doolev CFannera Branch Creek 2610 􀁏􀁾􀀸􀀳􀀱􀀴􀀱􀀸 03fJOOfJfJ81 Dist. to X-ducer Physical Offsel Diameter 24" L25" 24" 􀁁􀁣􀁣􀁥􀁾􀁬􀀡􀁉􀀺
INSTALLATION Pressure, Ultrasonics and Velocity Creek 􀁾􀀮 .-4i03 ,, -0 CI<: -c >. SAFETY OJ ll<: -0 >. 0􀁾 12" QI C Manhole Denlh: "0 fO""1'Ie I'5 Heavy 0 􀁾 ./. Traffic: I=l 1-Ga::I
lit rn....stuzalion: Use blower 635 RH03 Mtmhole Condition: Good N t Si"te Rain Gam'e Zone: RG01 -Dron/FaU: rn"tell QC: Dale: lat.: 24' Comments: /24' Pipe Tv"",: Concre-te 24' 􀀮􀁾
􀁾􀀩 '-J 􀁾 , =:I .-Nt BACKUP y N ? DISTANCE Plano.r Trunk X Cros5 Section Utt Sta. X STP X Genero.l Conclltlon.. overflows, bypo.sses, weirs, speclo.l Inforl'lQtlon, RATING Other lnnut
l( Monitor cho.rac-terlstics, surcho.rge ;K Pleo.se Mo.ke 0. precise drawing If odcl-sho.pecl pipe pipe or SpeCio.l Ind. UIS X Insto.llo.tlon B Lis ulS X BvdraulICtI: Good smooth now.
no sediment In pipe. Recommended Analysis Deyr. I I I Maeler Ust 01 Recommended Da,..,: I I I Additional Comment.ll -F!n.!ll Data Review Surcharlle: Yes Helahl: 10' Inv.: DOr: B" +/-0
TiIne: 11:00 Vel: 1.44 Ips Silt: 0 Uoetream Ilanhole Poor site DoWIUIlream llanhole Not loca.ted XX XX Mini Svstem Character: R=ldential/Commerci"l/Industrlal/Vacant ]1111j ,1 r'·n I
JJ [11j l'
􀁾􀀭􀀭􀀭􀁾􀀭􀁾􀁾􀁾􀁾􀁾􀁾􀁾􀁾􀁾􀁉􀁾􀁾􀁟􀀮􀁾 2.000 1.600 r-... 1.200 oC) 2 '-" 0.800 0.400 Site: RH03 FARMERS BRANCH, TEXAS {\" AJ'I A v r\ 􀁾 J \ f\ 1\ (\ \ \ \ \ \ W\ 􀁖􀁾rJ -.I\J rv
􀁾 y 'v v .I 1.0 0.8 r-... :;:0 0-. :::J --h 0--0.6 -:::J () ::r (1) UJ 0.4 '"-'" 01 􀁾-. :::J Cr+ 0.2 (1) '-" 0.000 I I I ! I·'! ! I 0.0 07/0a/90 07/09/90 07/10/90 07/11/90 07/12/90
07/13/90 07/14/90 Site RH03 Rain Data
----'-" _ -.I .-.-I --i 􀀭􀁊􀀮􀁾 􀁾 􀁾 --l ---l 2.000 1.600 1.200 ,roo.. oc..? 2'-' 0.800 0.400 Site: RH03 FARMERS BRANCH, TEXAS 􀁾 rrJ n 􀁾 \ \ \ \ 􀁾 \ nf\ vwvl;V'J 􀁾 \J V 1'1 IV
\-. 1.0 0.8 ,roo.. :::0 0-. ::l -h 0--0.6 -::l () :::r CD (J) 0.4 "'-􀁾()l 􀁾-. ::l C,-+ 0.2 CD '-' 0.000 I I' I I' I I II I I I I 0.0 07/15/90 07/16/90 07/17/90 07/18/90 07/19/90 07/20/90
07/21/90 Site RH03 Rain Data
-'';;''-'; -----' 􀀭􀁾 􀁾 -oJ ---J --.J -----J __oj 2.000 1.600 .-.. 1.200 oC> :2 '-../0.800 0.400 Site: RH03 FARMERS BRANCH, TEXAS M (\ ('M (\ f\ \ t \ \ \1\ I \ \/\ \ I \ 􀁶􀁊􀁾V 􀁾
v 􀁾 \J V v-I, I 1.0 0.8 .-.. ::u 0-. :J -+, 0--0.6 -:J () ::r CD en 0.4 "'----" (Jl s-.: :J Cr+-0.2 CD '-../0.000 I II II". I I I I L I I I I I 0.0 07/22/90 07/23/90 07/24/90 07/25/90
07/26/90 07/27/90 07/28/90 Site RH03 Rain Data
􀁾 ........ ..--. -.-􀀭􀁾􀀮􀁪 .--J ...........J 􀁾 ---'--.J J 2.000 1.600 1.200 "........ o'-' :2 '-/0.800 0.400 Site: RH03 FARMERS BRANCH, TEXAS 1\ (\ (\ 1\ 􀁾 􀁾 \ \ \ 1\ 1\ I\. 1\
1\ \ 􀁾􀀧􀀭􀁶y I'v-I \J '"' u V \J J I IlJ. 1.0 0.8 "........ AJ a-. :J -+. a--0.6 -:J () :r (!) (J) 0.4 "'---" (Jl 􀁾-. :J Cr+ 0.2 (!) '-/0.000 1 I I I 1 I 1 61 II I tilJlt 1 0.0 07/29/90
07/30/90 .07/31/90 08/01/90 08/02/90 08/03/90 08/04/90 Site RH03 Rain Data
------' 􀀭􀀭􀀭􀁾 __J 􀀷􀀭􀁾 -.-J --.J 􀀭􀀭􀁾 􀁾􀀭􀀭􀀭􀁊 ___..J" 0.400 '-" 0.800 r"'. oc:> :2 2.000 1.600 1.200 Site: RH03 FARMERS BRANCH, TEXAS fvv\ A \f'\IV 􀁾 V , I 1.0 0.8 r"'. :::0
0-. :::J -h 0--0.6 -:::J 0::::r ([) (J) 0.4 "...."..l. ()l 􀁾-. (/::J Cr+ 0.2 ([) '-" 0.000 I I I I I I I I I I 0.0 08/05/90 08/06/90 08/07/90 08/08/90 08/09/90 08/10/90 08/11/90 Site
RH03 Rain Data
I -I,I SUNDAY MONDAY TUESDAY IIEDNESDAY THURSDAY FRIDAY SATURDAY 1-' 7/1/90 7/2/90 7/3/90 7/4/90 7/5/90 7/6/90 7/7/90 'I ,l RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH
I ,\ FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) ,-112:00 8.3
0.789 11.9 1.566 11.6 1.556 9.6 1.114 (.1 :15 8.1 11.9 11.5 10.3 :30 8.1 11.5 11.9 9.6 :45 8.0 11.4 11.5 9.4 :-1 13 : 00 7.9 0.752 11.5 1.514 11.5 1.497 9.6 1.031 I : 15 8.0 11.4 11.4
9.3 :30 7.9 11.5 11.3 9.0 1'-1 :45 8.0 11.5 11.5 9.6 [' 14:00 7.9 0.749 11.3 1.500 11.4 1.536 9.4 1.018 , ' : 15 7.8 11.5 11.4 9.6 :30 8.1 11.5 11.5 9.3 1-1 :45 7.9 11.4 11.9 9.0 I 15
:00 7.9 0.740 11.5 1.502 12.0v 1.519 8.9 0.939 I : 15 7.8 11.4 11.9 8.9 :30 7.8 11.4 11.4 9.0 il :45 8.0 11.5 11.5 8.9 \116:00 8.0 0.722 11.2 1.450 11.5 1.486 8.8 0.888 : 15 7.9 11.1
11.5 8.8 " :30 7.8 11.1 11.3 8.8 I I: :45 7.4 11.3 11.2 8.3 i, ii 17:00 7.8 0.699 11.0 1.335 11.2 1.384 8.7 0.859 :15 7.5 10.8 11.3 8.2 -'1 :30 7.8 10.6 10.7 8.4 'I :45 7.6 10.5 10.5
8.7 : 11 18 : 00 7.8 0.736 10.0 1.108 10.1 1.135 8.7 0.840 : 15 7.8 10.2 9.7 8.6 1) :30 7.8 9.6 9.8 8.3 :45 8.0 9.0 9.8 8.1 19:00 7.5 0.666 9.1 0.961 9.7 1.104 8.1 0.778 :15 7.4 8.9
9.6 8.0 ] :30 7.4 9.0 9.7 8.1 :45 7.7 9.1 9.7 8.1 20:00 7.8 0.752 8.9 0.935 9.3 0.947 8.1 0.772 􀁾 : 15 8.0 9.0 8.9 8.0 :30 8.0 9.0 8.9 7.9 :45 8.0 8.7 8.7 8.1 21:00 8.0 0.770 8.3 0.817
8.3 0.878 8.0 0.772 f1 : 15 8.1 8.3 8.8 8.1 :30 8.1 8.3 8.7 8.1 :45 8.0 8.3 8.7 8.0 22:00 7.8 0.672 8.1 0.804 8.1 0.787 8.1 0.785 (1 :15 7.4 8.3 8.1 8.1 :30 7.3 8.3 8.1 8.1 :45 7.4 8.1
8.2 8.2 123 00 7.9 0.693 8.1 0.780 8.0 o.m 8.3 0.876 : 15 7.8 8.0 8.0 8.7 :30 7.4 8.1 8.1 8.7 :45 7.3 8.1 8.1 8.7 \1TOT RAIN: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TOT FLOY: 0.732 1.046
1.081 0.843 􀁾􀁍􀁍􀁉􀁎 FLII: 5:45 0.620 5:00 0.634 3:00 0.634 MIN FLOW: 23:45 0.634 5:45 0.620 5:00 0.634 3:00 0.634 MAX FLOY: 11:30 0.887 12:00 1.629 12:30 1.629 12:15 1.232 I 􀁾􀁄􀁅􀁐􀁔􀁈
SENSOR USED: Ultrasonic I[ 􀀧􀁾
SUNDAY MONDAY TUESDAY IoIEDNESDAY THURSDAY FRIDAY SATURDAY 7/8/90 7/9/90 7/10/90 7/11/90 7/12/90 7/13/90 7/14/90 RAIN DEPTH FLOI.J RAIN DEPTH FLOI.J RAIN DEPTH FLOI.J RAIN DEPTH FLOI.J
RAIN DEPTH FLOI.J RAIN DEPTH FLD\oI RAIN DEPTH FLO\ol (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) r2: OO 8.9 0.929
11.3 1.485 12.2 1.668 12.2 1.610 12.2 1.602 11.9 1.578 9.7 1.111 :15 8.9 11.3 12.1 12.0 12.0 12.0 9.8 :30 8.8 11.4 12.1 11.8 11.5 11.5 9.6 :45 8.9 11.4 12.0 11.4 11.5 11.4 9.8 113 :
00 8.9 0.889 11.3 1.485 11.5 1.571 11. 1 1.493 11.5 1.609 11.6 1.590 9.3 1.022 :15 8.7 11.4 11.4 11.4 11.9 11.5 9.2 :30 8.6 11.3 11.9 . 11.5 11.9 11.9 9.3 􀁲􀁽􀀴􀁾􀁾􀁾 8.5 11.4 12.0
11.5 12.1 12.0 9.5 8.1 0.804 11.4 1.505 11.9 1.631 11.5 1.565 11.9 1.651 12.0 1.683 9.2 0.989 I . : 15 8.3 11.5 11.9 11.5 12.1 12.2 8.9 :1:30 8.2 11.4 11.9 11.8 12.0 12.2 9.1 :45 8.2
11.4 12.0 11.9 12.1 12.1 9.4 I 15:00 8.2 0.807 11.2 1.450 12.2 1.625 11.8 1.522 12.0 1.634 12.2 1.602 9.1 0.949 I : 15 8.1 11.4 12.3 11.5 11.9 12.0 9.1 ;-1 :30 8.5 11.1 11.9 11.3 11.7
11.5 8.9 I' :45 8.2 11. 1 11.3 11.4 12.2 11.5 8.8 I j16:00 8.7 0.812 11.1 1.440 11.3 1.447 11.5 1.418 11.4 1.512 11.5 1.497 9.0 0.943 :15 8.2 11. 1 11.1 11.3 11.5 11.5 8.9 :30 8.1 11.
1 11.1 11.1 11.5 11.4 8.9 ,:45 8.1 11.3 11.3 10.4 11.4 11.3 i '17:00 8.1 0.781 11.4 1.408 11. 1 1.372 10.6 1.363 11.3 1.466 11.3 1.412 9.0 0.943 : 15 8.1 11.5 10.9 11. 1 11.0 11.3 8.9
i :30 8.1 10.6 11.0 11. 1 11.4 10.7 8.9 J :45 8.1 10.7 10.5 10.6 11.4 10.8 8.9 I18 :00 8.1 0.781 10.6 1.180 10.4 1.190 10.0 1.126 10.8 1.276 10.7 1.308 9.7 1.115 : 15 8.2 10.3 10.0 9.9
10.7 11.1 9.8 I 1:30 8.1 9.6 10.3 9.8 10.4 10.4 9.8 :45 8.1 9.6 9.7 9.5 10.0 10.2 9.8 19:00 8.0 0.752 9.6 1.053 10.0 1. 111 9.0 0.996 9.9 1.113 9.8 1.117 8.9 0.915 : 15 8.0 9.4 9.7 9.0
9.8 9.9 8.8 1 :30 8.1 9.5 9.5 9.0 9.6 9.7 8.7 :45 7.8 9.3 9.7 9.7 9.6 9.6 8.8 20:00 7.8 0.722 9.3 1.026 9.6 0.970 9.3 0.983 9.4 0.985 9.3 0.979 8.1 0.778 l :15 7.6 9.1 9.0 9.3 9.2 9.1
8.1 :30 7.9 9.5 8.9 9.0 9.1 9.0 8.1 :45 7.8 9.4 8.9 8.9 8.9 9.1 8.1 21:00 7.8 0.711 9.0 0.927 8.8 0.923 8.8 0.889 9.1 0.963 9.0 0.923 7.9 0.754 11 :15 7.8 8.9 9.0 8.7 9.0 8.9 8.0 :30
7.6 8.8 8.8 8.5 9.0 8.8 8.0 :45 7.8 8.8 8.8 8.7 9.1 8.7 8.0 22:00 7.4 0.706 8.3 0.809 8.6 0.884 8.3 0.849 8.9 0.931 8.6 0.903 8.0 0.751 I : 15 7.8 8.2 8.5 8.5 8.9 8.9 7.8 :30 7.8 8.2
8.6 8.4 8.9 8.9 8.0:45 7.8 8.3 8.8 8.6 8.9 8.6 7.9 (3:00 7.5 0.717 8.1 0.796 8.8 0.867 8.1 0.849 8.7 0.901 8.9 0.886 8.2 0.789 :15 7.9 8.2 8.7 8.3 8.6 8.6 8.0 :30 7.9 8.3 8.6 8.7 8.9 8.6 8.3 :45 7.8 8.1
8.1 8.7 8.7 8.5 8.1 ITOT RAIN: 0.00 0.00 0.00 0.00 0.69 0.00 0.00 TOT FLD\oI: 0.764 1.084 1.165 1.123 1.182 1.146 0.882 JMMIN FLI.J: 7:15 0.627 0:30 0.668 5:15 0.731 2:15 0.752 2:30
0.647 4:15 0.675 5:45 0.627 , MIN FLOI.J: 7:15 0.627 0:30 0.668 5:15 0.731 2:15 0.752 2:30 0.647 4:15 0.675 5:45 0.627 MAX FLOI.J: 12:00 0.943 14:15 1.531 15: 15 1.728 12:00 1.698 11
:30 1.819 14: 15 1.708 8: 15 1. 126 .IDEPTH SENSOR USED: Ultrasonic , t I,.
08/30/90 ADS SERVICES, INC. -,!,; Ie PIPE DIAMETER: 24.000 PROJECT: FARMBRAN I ID 1: DOOLEY @FARMERS BRANCH CREEK PIPE SHAPE: CIRCULAR SITE: RH03 il ID 2: FARMERS BRANCH, TEXAS ENERGY
GRADIENT: 2.041 RAIN GAUGE: RG01 I, BASIN: RAIJHIDE CREEK MUD: 0.13 PEAK CAPACITY: 4.197 SUNDAY MONDAY TUESDAY IJEDNESDAY THURSDAY FRIDAY SATURDAY Il 7/8/90 7/9/90 7/10/90 7/11/90 7/12/90
7/13/90 7/14/90 RAIN DEPTH FLOLJ RAIN DEPTH FLOLJ RAIN DEPTH FLOLJ RAIN DEPTH FLOLJ RAIN DEPTH FLO'oI RAIN DEPTH FLO'W RAIN DEPTH FLOLJ \ (in) (in) (mgd) (in) (in) (mgd) (in) (in)' (mgd)
(in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 11 0:00 8.4 0.859 8.0 0.724 8.1 0.774 8.1 0.774 8.5 0.782 8.2 0.813 8.7 0.828 : : 15 8.8 7.8 8.0 8.0 8.1 8.2 8.4 :30 8.6
7.5 8.1 8.1 7.8 8.3 8.1 1"45 8.2 7.9 8.1 8.0 8.0 8.3 8.1 I 1􀁾􀁏􀁏 8.1 0.781 7.7 0.712 8.2 0.778 8.1 0.794 8.1 0.742 8.3 0.811 8.1 0.774 I : 15 8.2 7.5 8.1 8.4 7.8 8.3 8.0 :30 8.1 7.9
8.0 8.0 8.0 8.3 8.1 11 :45 8.1 7.8 8.1 8.1 7.8 8.2 8.1 2:00 7.9 0.734 7.9 0.752 8.0 0.769 8.1 0.767 7.5 0.692 8.3 0.791 8.2 0.748 I. :15 7.9 8.1 8.0 8.0 7.6 8.1 8.0 11 :30 7.8 7.9 8.2
8.0 7.4 8.1 8.0 :45 7.8 7.9 7.9 8.0 8.0 8.1 7.5 3:00 7.4 0.647 8.0 0.743 8.0 0.795 8.3 0.798 8.0 0.789 8.1 0.776 7.6 0.678 :15 7.4 7.8 8.0 8.0 8.0 8.1 7.5 1 :30 7.4 7.8 8.5 8.1 8.6 8.1
7.5 ! :45 7.4 8.0 8.1 8.3 8.1 8.0 7.5 4:00 7.4 0.637 7.8 0.736 8.1 0.778 8.1 0.791 8.1 0.774 7.7 0.699 7.4 0.671 :15 7.3 7.8 8.1 8.4 8.1 7.5 7.4 11 :30 7.3 8.0 8.1 8.1 8.1 7.5 7.8 :45
7.3 8.0 8.1 8.1 8.1 7.9 7.4 5:00 7.4 0.663 8.0 0.767 8.0 0.749 8.4 0.798 8.0 0.758 7.8 0.758 7.6 0.673 :15 7.3 8.0 7.8 8.1 8.1 8.0 7.8 ;1 :30 7.4 8.1 8.0 8.1 7.9 8.0 7.4 :45 7.8 8.1
7.9 8.2 8.0 8.1 7.2 6:00 7.9 0.698 8.0 0.751 8.0 0.761 8.5 0.785 8.0 0.763 8.0 0.767 7.2 0.752 I :15 7.9 7.9 8.0 8.0 8.1 8.0 8.2 :30 7.4 7.9 8.1 8.0 8.1 8.1 8.1 :45 7.3 8.0 8.0 8.1 7.9
8.0 8.2 7:00 7.4 0.689 8.1 0.908 8.7 1.037 8.3 0.969 0.05 8.1 0.979 8.7 0.924 9.0 1.069 11 :15 7.2 8.6 9.1 8.9 0.38 8.9 8.7 9.8 :30 7.9 8.6 9.6 9.5 0.09 9.1 8.5 9.7 :45 7.9 9.6 10.0
9.5 0.04 10.3 9.5 9.6 8:00 7.5 0.724 9.6 1.104 10.4 1.363 9.8 1.233 0.04 11.0 1.469 9.7 1.244 9.7 1.034 1:15 8.0 9.6 10.5 10.4 0.05 11.3 10.4 9.8 :30 7.8 9.7 11.1 10.4 0.02 11.4 10.6
9.1 :45 7.9 9.8 11.3 10.5 0.01 11.5 10.7 8.9 I 9:00 7.9 0.765 10.4 1.319 11.1 1.529 11.0 1.447 11.5 1.544 10.7 1.368 8.9 0.959 :15 7.9 10.5 11.4 11.1 11.5 10.6 9.0 :30 8.1 10.7 11.5
11.3 0.01 11.4 10.7 9.1 :45 8.1 11.1 12.0 11.4 12.0 11.3 9.0 110;00 8.1 0.830 11.2 1.486 12.2 1.698 11.8 1.612 12.1 1.696 11.2 1.481 8.9 0.945 :15 8.4 11.5 12.2 11.9 12.2 11.3 • 8.7
:30 8.2 11.5 12.2 12.0 12.2 11.4 9.0 :45 8.7 11.2 12.2 11.9 12.3 11.4 9.1 I 111:00 8.7 0.890 11. 1 1.452 12.1 1.673 11.4 1.524 12.2 1.728 11.5 1.587 8.9 1.006 : 15 8.4 11.4 12.1 11.1
12.2 11.8 9.2 :30 8.7 11.2 12.1 11.9 12.7 12.0 9.4 (I :45 8.9 11.1 12.2 11.7 12.2 11.9 9.4 \-1
rj 08/30/90 ADS SERVICES, INC. 1,°] PIPE DIAMETER: 24.000 PROJECT: FARMBRAN IIID 1: DOOLEY @FARMERS BRANCH CREEK PIPE SHAPE: CIRCULAR SITE: RH03 rl ID 2: FARMERS BRANCH, TEXAS ENERGY
GRADIENT: 2.041 RAIN GAUGE: RG01 BASIN: 􀁒􀁁􀁾􀁈􀁉􀁄􀁅 CREEK MUD: 0.13 PEAK CAPACITY: 4.197 , ! SUNDAY MONDAY TUESDAY IJEDNESDAY THURSDAY FRIDAY SATURDAY l-l 7/15/90 7/16/90 7/17/90
7/18/90 7/19/90 7/20/90 7/21/90 RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ RAIN DEPTH FLOIJ (in) (in) (mgd) (in) (in) (mgd)
(in) (in)' (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) r1 􀁏􀁾􀁏􀁏 8.0 0.760 7.4 0.724 8.1 0.767 8.3 0.800 8.9 0.872 8.4 0.794 8.1 0.785 :.' .15 7.9 7.8 7.9
8.3 8.6 8.1 8.2 :30 8.0 8.0 8.1 8.1 8.5 8.1 8.1 11 :45 8.1 8.0 8.1 8.1 8.3 8.1 8.0 1• 1: 00 7.8 0.684 8.0 0.756 8.1 0.746 8.1 0.791 8.5 0.824 8.1 0.751 8.1 0.758 , . : 15 7.4 8.1 8.0
8.1 8.3 7.8 8.1 :30 7.5 7.9 8.0 8.1 8.2 8.0 8.0 n :45 7.5 7.9 7.6 8.2 8.3 7.9 7.8 '[j 2:00 7.3 0.718 8.0 0.758 7.8 0.763 8.2 0.793 8.2 0.781 7.6 0.744 7.8 0.745 : 15 7.6 8.0 8.1 8.3
8.1 8.1 8.0 :30 8.0 8.0 8.1 8.1 8.1 7.8 8.0 11 '45 8.1 7.9 8.0 8.1 8.0 8.1 7.9 ; _. 3;00 8.1 0.740 8.0 0.769 8.0 0.731 8.0 0.735 8.1 0.754 8.1 0.n8 7.7 0.675 :15 8.1 8.0 8.0 8.0 7.8
8.0 7.4 . -.. :30 7.9 8.1 8.0 7.9 8.0 8.1 7.5 I :45 7.4 8.1 7.4 7.6 8.0 8.1 7.4 II 4:00 7.7 0.670 8.1 0.758 7.9 0.710 7.6 0.726 7.8 0.720 8.1 0.n4 7.6 0.692 : 15 7.4 8.0 7.7 8.0 8.0
8.1 7.4 r) :30 7.4 7.9 7.8 7.7 7.6 8.0 7.7 \ ,I :45 7.4 7.9 7.5 8.0 7.8 8.1 7.8 ! "I 5:00 7.8 0.703 7.8 0.753 7.5 0.641 7.7 0.712 8.3 0.747 8.1 0.729 8.0 0.765 :15 8.0 7.9 7.4 7.5 8.0
8.0 8.1 ji :30 7.5 8.1 7.3 7.8 7.7 7.5 7.9 :45 7.5 8.1 7.1 8.0 7.8 7.8 8.0 6:00 7.9 0.675 8.0 0.752 7.0 0.622 8.2 0.n8 8.0 0.758 7.4 0.679 7.8 0.743 [1 :15 7.3 7.8 7.3 8.1 8.0 7.4 8.0
:30 7.4 0.01 8.0 7.2 8.0 8.0 7.4 7.9 :45 7.5 0.14 8.0 7.4 8.0 8.0 7.9 7.9 7:00 7.3 0.719 0.04 8.1 0.910 7.8 0.902 8.1 0.951 8.1 0.958 8.2 0.925 8.2 0.824 1.1 :15 7.4 8.3 8.3 8.8 8.9
8.7 8.5 :30 7.4 9.0 9.0 9.3 9.2 8.9 8.9 8.4 :45 8.8 9.6 9.7 9.6 9.8 9.6 8.3 8:00 9.3 0.963 10.0 1.163 10.1 1.228 9.9 1.230 9.9 1.239 9.8 1.206 8.3 0.804 C'l : 15 8.9 10.2 0.01 10.3 10.4
10.3 9.9 8.1 :30 9.0 9.9 10.2 10.4 10.5 10.5 8.3 :45 8.9 9.8 10.5 10.4 10.5 10.4 8.2 9:00 9.1 0.929 10.0 1.275 10.5 1.378 10.6 1.330 10.3 1.382 10.6 1.446 8.1 0.886 : 15 8.8 10.5 10.4
10.6 10.8 11.4 8.8 :30 8.9 10.6 11.3 10.7 11.1 11.4 8.9 :45 8.8 10.7 11.4 11.0 11.4 11.4 8.8 Iro:OO 8.8 0.849 10.9 1.443 11.4 1.558 11.1 1.488 12.0v 1.449 11.9 1.580 8.9 0.925 :15 8.6
11.2 11.8 11.4 12.0v 12.1v 8.9 _. :30 8.3 11.3 11.5 11.4 12.0v 11.7 8.7 :45 8.1 11.3 11.9 11.5 11.6v 11.9 8.9 r1 :00 8.3 0.868 11.5 1.493 11.9 1.593 11.7 1.519 12.0v 1.485 11.7 1.574
8.8 0.937 :15 8.6 11.3 12.0v 12.0v 12.1v 11.9 9.0 :30 8.7 11.4 11.9 12.2v 12.2v 12.0v 8.8 :45 8.7 11.3 11.9 12.2v 12.1v 11.9 9.0 I) LLI
SUNDAY MONDAY TUESDAY \.IEDNESDAY THURSDAY FRIDAY SATURDAY I 7/22/90 7/23/90 7/24/90 7/25/90 7/26/90 7/27/90 7/28/90 RAIN DEPTH FLO\.l RAIN DEPTH FLO\.l I RAIN DEPTH FLOIl RAIN DEPTH
FLO\.l RAIN DEPTH FLO\.l RAIN DEPTH FLO\.l RAIN DEPTH FLO\.l (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) ( in) ( in) (mgd) (in) (in) (mgd) 12:00 8.0
0.789 12.2v 1.511 12.3v 1.549 12.7v 1.549 11.5 1.551 11.6 1.522 9.6 1.093 :15 8.2 12.1v 12.6v 12.4v 11.9 11.6 9.5 :30 8.2 11.4 12.4v 12.2v 11.5 11.4 9.8 :45 8.1 12.0v 12.2v 12.1v 11.5
11.4 9.7 ,13:00 8.3 0.776 11.4 1.498 12.2v 1.491 12.1v 1.496 11.3 1.497 11.4 1.541 9.6 1.049 :15 8.1 11.5 12.3v 12.0v 11.4 11.6 9.2 :30 8.0 11.5 12.2'1 12.0v 11.4 11.4 9.5 .' :45 8.0
12.0v 12.1v 12.1v 11.5 11.9 9.6 114:00 8.1 0.767 12.0v 1.528 0.11 12.2v 1.533 12.1v 1.541 11.7 1.557 11.7 1.604 9.1 0.985 ) :15 8.0 12.1v 0.01 12.2v 12.3v 12.2v 11.9 9.0 :30 8.0 11.9
12.2v 12.2v 11.6 11.9 9.4 I :45 0.10 8.0 12.1v 12.4v 12.4v 11.7 11.9 9.1 j15:00 7.9 0.749 12.0v 1.554 12.2v 1.518 12.2v 1.522 12.2v 1.520 11.7 1.547 9.0 1.006 :15 8.0 12.0v 12.3v 12.2v
11.7 12.3v 9.5 r :30 0.03 7.8 11.7 12.2v 12.1v 11.5 11.7 9.5 :45 8.1 11.9 12.2v 12.3v 11.4 11.5 8.9 I 16:00 8.1 0.774 1.470 12.0v 1.513 11.7 1.548 11.4 1.471 11.4 1.476 9.1 0.949 :15
8.1 11.3 11.5 12.0v 11.5 11.4 8.9 :30 8.0 11.3 11.5 11.9 11.4 11.2 8.9 .' :45 8.1 11.2 11.5 11.5 10.9 11.2 8.9 J 17:00 8.2 0.763 11.5 1.378 11.5 1.495 11.6 1.502 11.2 1.389 10.7 1.321
9.0 0.957 : 15 8.0 10.8 11.5 11.5 11.1 10.8 8.9 :30 8.0 11.0 11.3 11.3 10.7 10.6 8.9 :45 7.8 10.4 11.4 11.3 10.7 10.5 9.1 j 18:00 8.0 0.765 9.8 1.108 11. 1 1.361 11.1 1.245 10.5 1.197
10.4 1.163 8.8 0.898 : 15 8.0 9.8 11. 1 10.4 10.3 9.9 8.9 :30 8.1 9.7 10.7 9.9 9.8 9.8 8.9 I :45 8.0 9.6 10.4 9.9 9.9 9.8 8.3 . 19:00 8. 1 0.736 9.3 1.004 10.4 1.199 9.9 1.165 9.8 1.100
9.4 1.016 8.7 0.853 :15 7.9 9.0 10.0 9.8 9.8 9.1 8.7 :30 7.9 9.0 9.8 10.2 9.3 9.1 8.3 II' :45 7.6 9.6 10.3 10.0 9.8 9.6 8.2 20:00 7.8 0.767 8.9 0.933 10.3 1.131 9.7 1.098 9.6 1.066 9.1
0.973 8.1 0.776 ", :15 8.0 8.9 9.8 9.6 9.3 9.1 8.0 j :30 8.1 8.9 9.6 9.7 9.6 9.0 8.1 :45 8.2 8.8 9.6 9.7 9.5 9.1 8.1 21:00 7.9 0.749 8.7 0.826 9.2 0.979 9.1 0.985 9.1 0.965 8.9 0.931
8.1 0.811 f: :15 8.1 8.2 0.01 9.3 9.1 9.1 8.9 8.2 ,I :30 7.9 8.2 8.9 9.4 9.0 9.0 8.2 :45 7.8 8.2 9.0 8.9 9.0 8.7 8.5 22:00 7.9 0.767 8.7 0.827 9.0 0.971 9.1 0.989 9.1 0.981 8.9 0.907
8.3 0.785 I :15 8.0 8.2 9.1 9.3 9.3 8.7 8.1 :30 8.0 8.3 9.0 9.1 9.1 8.7 8.0 :45 8.2 8.1 9.3 9.2 9.1 8.8 8.1 ('1 23 :00 8.1 0.776 8.7 0.849 9.0 0.945 8.9 0.939 9.1 0.973 8.8 0.884 8.1
0.785 I :15 8.1 8.7 9.0 9.0 9.1 8.7 8.1 'i :30 8.1 8.2 9.0 8.9 9.1 8.5 8.1 :45 8.0 8.2 8.9 8.9 9.1 8.6 8.1 I ITOT RAIN: I 0.13 0.16 0.14 0.03 0.00 0.00 0.00 TOT FLO\.l: 0.739 1.108 1.148
1.163 1.158 1.136 0.857 I fMMIN FL\.I: 2:30 0.634 2:00 0.675 5:45 0.647 3:45 0.760 3:45 0.774 5: 15 0.703 3:45 0.634 ) MIN FLOIl: 2:30 0.634 2:00 0.675 5:45 0.647 3:45 0.760 3:45 0.774
5:15 0.703 3:45 0.634 MAX FLO\.l: 10:30 0.872 14:30 1.629 12: 15 1.599 16:30 1.629 12: 15 1.619 9:45 1.629 12:30 1.126 r:J J DEPTH SENSOR USED: Ul trasoni c i/':, J t'· . l.:_..;...
08/30/90 ADS SERVICES, INC. [I'iI---------------------P-I-PE-D-IA-M-E-TE-R-:-2-4-.-00-0--------------P-R-O-JE-C-T-:-F-A-RM-B-RA-N---' I 10 1: DOOLEY @FARMERS BRANCH CREEK PIPE SHAPE:
CIRCULAR SITE: RH03 'I 10 2: FARMERS BRANCH, TEXAS ENERGY GRADIENT: 2.041 RAIN GAUGE: RG01 I I BASIN: RAYHIDE CREEK MUD: 0.13 PEAK CAPACITY: 4.197 I L..' ------' II '. I \ SUNDAY 8/5/90
RAIN DEPTH FLOY (in) (in) (mgd) MONDAY 8/6/90 RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁾 RAIN DEPTH 􀁆􀁌􀁾 (in) (in) (mgd) (in) (in)' (mgd) (in)
(in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 11 0: 00 8.8 0.886 9.0 0.937 I : 15 8.7 8.9 :30 8.7 8.9 -1 ·45 8.4 8.9 ,I j 1; 00 8.3 0.826 8.9 0.933 I : 15 8.7 8.9 :30 8.2
8.9 ):::·"11 :45 8.2 8.9 I J 2:00 8.1 0.778 8.9 0.937 :15 8.1 8.9 --. :30 8.1 8.9 I ' :45 8.1 8.9 : !3:00 8.1 0.760 8.9 0.933 :15 8.0 8.9 -. :30 7.9 8.9 ,i :45 8.0 8.9 ! ,: 4:00 7.8
0.742 8.9 0.903 :15 7.8 8.9 [1 :30 8.0 8.7 I i :45 7.9 8.5 I I 5:00 8.0 0.769 8.6 0.864 :15 8.0 8.5 1::30 0.09 8.1 8.7 :45 8.1 8.4 6:00 8.0 0.781 8.7 0.907 , 1 :15 8.2 8.7 I I :30 8.1
8.9 :45 8.1 8.8 7:00 8.6 0.855 9.0 1.050 1 I :15 8.4 9.5 :30 8.1 9.6 :45 0.01 8.8 9.7 8:00 0.01 8.8 0.896 10.4 1.342 il :15 8.9 10.7 I . :30 8.8 10.7 :45 8.3 11.3 I9:00 8.6 0.899 11.1
1.527 :15 8.8 11.4 :30 8.7 11.8 :45 8.8 12.1v roOO 8.7 0.925 12.2v 1.588 : 15 8.9 12.2v :30 8.9 12.1v :45 8.9 12.2v f1:00 8.9 0.973 12.3v 1.549 . : 15 9.4 12.1v :30 9.0 12.1v :45 9.0
12.2v (J 'II I
I·": '\"'I SUNDAY 8/5/90 RAIN DEPTH FLOY (in) (in) (mgd) MONDAY 8/6/90 RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY RAIN DEPTH FLOY (in) (in) (mgd)
􀁾􀁩􀁮􀀩 (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) (in) (in) (mgd) 1112:00 9.4 0.963 12.2v 1.541 i I :15 9.1 12.2v :30 8.9 12.0v :45 8.7 12.0v 11 13 : 00 8.8 0.933 12.0v
1.568 I I : 15 8.9 12.2v :30 9.0 12.2v [1 :45 8.9 12.2v ...• 14:00 8.8 0.901 12.2v 1.531 :15 8.7 12.2v :30 8.7 12.2v Ii :45 0.01 8.7 12.2v • 115:00 0.08 10.3 1.144 12.3v 1.520 :15 0.06
--12.2v :30 0.03 9.6 12.2v il :45 0.03 9.8 12.2v I.. j 16:00 10.5 1.268 12.6v 1.561 :15 0.01 10.5 12.2v l :30 0.02 10.4 12.1v I :45 0.02 10.4 12.1v \ , 17:00 0.01 9.9 1.130 11.4 1.483
: 15 9.9 11.4 􀁾 :30 9.7 11.5 i ,1 I i :45 9.8 11. 1 [ i 18:00 9.6 1.087 10.4 1.246 :15 9.7 10.4 -1 :30 9.6 10.6 :45 9.6 9.9 I 19:00 9.6 1.093 9.6 1.104 :15 9.8 9.7 1 :30 9.6 9.6 :45
9.5 9.8 20:00 9.3 1.012 9.5 1.043 I i :15 9.1 9.4 :30 9.2 9.6 :45 9.5 9.3 21:00 9.0 0.992 9.0 0.959 j :15 9.1 8.9 :30 9.1 9.1 :45 9.5 9.0 22:00 9.5 1.062 9.0 0.947 [ . t :15 9.5 9.0
Ii:30 9.5 8.9 :45 9.5 8.9 123 00 8.9 0.943 8.9 0.931 : 15 8.9 8.9 , :30 8.9 8.9 :45 8.9 8.8 I ITOT RAIN: 0.38 0.00 TOT FLOY: 0.940 1.204 [ tMMIN FLY: 4:00 0.731 5:45 0.841 l MIN FLOY:
4:00 0.731 5:45 0.841 MAX FLOY: 16:00 1.277 10:45 1.663 [.J DEPTH SENSOR USED: Ul trasoni c r:1