HomeMy WebLinkAboutResolution No. 09-082
CITY OF THE COLONY, TEXAS
RESOLUTION NO. 09- 09a
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF THE
COLONY, TEXAS, APPROVING THE TERMS AND CONDITIONS OF
THE ENGINEERING SERVICES CONTRACT BY AND BETWEEN THE
CITY OF THE COLONY AND ALAN PLUMMER ASSOCIATES, INC.
FOR PREPARATION OF AN UPDATED WATER MASTER PLAN,
WHICH IS ATTACHED HERETO AND INCORPORATED HEREIN AS
EXHIBIT "A"; AUTHORIZING THE CITY MANAGER TO EXECUTE
THE CONTRACT; AND PROVIDING AN EFFECTIVE DATE
WHEREAS, the City and Consultant have entered into a Contract such that the
Consultant is to provide the following services: PREPARATION OF AN UPDATED WATER
MASTER PLAN; and
WHEREAS, the City has determined that it is in the best interest of the City to enter into
the Contract with Alan Plummer Associates, Inc., which is attached hereto and incorporated
herein by reference as Exhibit "A," under the terms and conditions provided therein; and
WHEREAS, with this Contract the City of The Colony is agreeing to pay the sum not to
exceed $92,000 for such work.
THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF
THE COLONY, TEXAS THAT:
Section 1. The Engineering Services Contract, which is attached and incorporated hereto as
Exhibit "A", having been reviewed by the City Council of the City of The Colony, Texas, and found
to be acceptable and in the best interest of the City and its citizens, be, and the same is hereby, in all
things approved in the base amount of $87,800, plus a contingency amount of $4,200, for a total
amount not to exceed $92,000.
Section 2. The City Manager is hereby authorized to execute the Contract on behalf of the
City of The Colony, Texas.
Section 3. This Resolution shall take effect immediately from and after its adoption and
it is so resolved.
PASSED, APPROVED and EFFECTIVE this 20th day of October, 2009.
AT S
oe McC rry, Mayor
G City of The Colony, Texas
ristie Wilson, City Secretary
APP V ORM:
Robert E. Hager, ty Attorney
63918
Exlii bit 4tA3)
Scope of Services -and Work Schedule
Professlonitl agrees to cOnInlenee services upon written direction from City and to complete project
in acoordanee With the attached Alan Plummer Associates scope ofservices, fee schedule and
b0got estimate.
Budget Requirements
The,services will be completed can a time and materials basis for the not to exceed total cost of
$87,800.. 0. No w
.ork. outside the approved scope of work should be performed by Consultant
without, prior written approval and Change Order to the contract.
Schedule
The services outlined in this proposal mid. final project report should be Qonipleted within nine (0)
inontbs after receipt of a written Notice to Proceed yfroni The City of The. Colony.
2009-114-00
City of The Colony
ATTACHMENT A
SCOPE OF SERVICES
Water Distribution System Master Plan
The Basic Engineering Services rendered by ENGINEER are to be considered
distinguishable from other services and divided into the following categories:
A. Water Distribution System Hydraulic Modeling
B. General Services
In addition to the Basic Services, other services related to the project that may be
included by specific authorization are identified herein as "C-SPECIAL SERVICES".
These various services are more fully described as follows:
A. Water Distribution System Hydraulic Modeling
TASK 1 Data Gathering
The following information will be provided to the ENGINEER by the CLIENT:
1. Copies of previous reports related to evaluation of pumping and distribution
facilities.
2. Information related to any specific fire flow requirements within the City.
3. Electronic files containing water system pipes, valves, fire hydrants, etc.
4. Any available information related to pipe material and age within the system.
5. Electronic files containing all customer metered water usage for 2006-2009.
Electronic files should include location (address) of each meter, and monthly
metered usage at each location.
6. Electronic files containing city street centerline information and city limits.
7. Operational protocols for the system, which may include pump on/off
settings, pressure reducing valve settings, etc.
8. Plans for. piping at all pump stations.
9. Relevant information on available water supply from existing and proposed
groundwater wells.
10. Measured flows for the pumps at the pump stations for 2006-2009.
11. Tank level data (hourly) in all storage tanks for 2006-2009.
12. Any records of low-pressure complaints. Map indicating areas of known
problems with low or high pressures.
13. Best available electronic elevation data for the CLIENT.
14. Information concerning any projected growth and development within the
CLIENT's service area. This could include previous projections, land use
zoning, and known plans for projects.
15. Detailed information for all storage tanks, to include inlet and outlet
diameter, storage-depth relationship, diameter of bowl, minimum and
maximum water levels, presence of interior screening, baffling or other
mixing techniques.
16. Emergency connections to any outside water sources (location, sizes,
minimum and maximum flow rates, delivery pressure)
Page 1 of 4
F:\Busdev\Proposals\Proposals_2009\2009-114-00_Colony_Water_Master_Plan\Colony_water MP_Scope v6.doc
10/2/09
2009-114-00
City of The Colony
17. Location of any special service zones, pressure reducing valves, flow control
valves, service to major buildings or geographic areas within the city.
TASK 2 Develop Hydraulic Model
ENGINEER will update the existing distribution model to accurately represent the
existing distribution system and include all pipes within the distribution system.
The model will be developed using MWHSoft's INFOWATER software.
The following sub-tasks are to be completed as part of this task:
2.1 Initial review of existing information and field testing. ENGINEER will
review the information provided by the CLIENT and develop
recommendations for sampling to obtain additional data necessary for
model setup and calibration. The recommended sampling program will
include suggested locations, timing, frequency and duration of pressure
and flow measurements throughout the distribution system. All data
collection and sampling will be performed by the CLIENT.
2.2 Update water system model. All known existing pipes will be added to
the distribution system model. Electronic files showing distribution
system pipe size and location will be provided by the CLIENT.
2.3 Develop demand distribution. Metering records provided by the
CLIENT will be used to determine demand distributions to each model
node under maximum month conditions. Records of hourly pumped flow
will then be used to define maximum day flow conditions, identify diurnal
flow patterns, and determine additional system demands not captured by
the metering records.
TASK 3 Hydraulic Model Calibration
The objective of this task is to calibrate the hydraulic model so that it provides
reliable results for subsequent hydraulic evaluations. The following sub-tasks are
to be completed as part of this task:
3.1 Update operational rules into model. ENGINEER will update system
operational rules in the model, including pump trigger rules, minimum and
maximum tank levels, etc:
3.2 Calibrate steady state model. Model output (flows and system
pressures) will be compared to field-measured system data, as provided
by Task 2.1. Model physical parameters will be adjusted to calibrate to
the field pressure and flow measurements.
3.3 Perform extended period simulation (EPS) model calibration.
Modeled flows, pressures and tank levels will be compared to measured
data at hourly intervals for a 48-72 hour period under maximum day flow
conditions. Adjustment of model. physical parameters and/or refinements
to the demand distribution will be used to calibrate for EPS conditions.
Page 2 of 4
F:\Busdev\Proposals\Proposals_2009\2009-114-00_Colony_water_Master_Pla n\Colony_water_MP_Scope_v6.d oc
10/2/09
2009-114-00
City of The Colony
TASK 4 Hydraulic Model Runs and Identification of Recommended
Improvements
The objective of this task is to use the calibrated hydraulic model to identify
improvements required to meet demands and provide adequate pressures to the
system for existing and projected future conditions. The following sub-tasks are
to be completed as part of this task:
4.1 Define improvement criteria. In conjunction with City staff, develop
criteria for evaluation of improvements. These criteria may include
measures such as maximum allowable velocities, maximum allowable
head loss, minimum and maximum pressures, fire flow criteria and fiscal
constraints.
4.2 Develop demand scenarios. Using information obtained from previous
tasks, develop demand scenarios for average day, maximum day, peak
hour, and minimum hour steady state conditions. Develop demand
scenario for a maximum day EPS condition.
4.3 Perform model runs. Steady state model runs will be made for existing
demands and projected year 2019 and buildout (2030) demands under
maximum day, peak hour and minimum hour demand conditions. In
addition, EPS model runs will be made under maximum day demand
conditions in order to evaluate system performance under tank filling and
draining conditions.
4.4 Evaluate improvements and provide improvement rationale. The
distribution model will be used to evaluate recommended improvements
for the 2019 and 2030 systems. Improvements will be identified through
consultation with City staff and through analysis of the model results. A
description and rationale for each proposed improvement will be provided
in tabular form. System maps will be provided that show all distribution
piping and facilities,, recommended improvements and pressure contours.
4.5 Provide planning level opinions of probable cost for improvements.
Planning level opinions of probable cost for each improvement will be
provided.
B. General Services
TASK 5 Project Meetings
The objective of this task is to provide time throughout the project period for
meetings with the CLIENT to review and discuss the progress of the study and to
provide time for in-house project meetings at the office of the ENGINEER.
Project meetings with the CLIENT will include a kickoff meeting and up to 2
additional progress meetings throughout the project.
Page 3 of 4
F:\Busdev\Proposals\Proposals_2009\2009-114-00_Colony Water Master_Plan\Colony_water_MP_Scope_v6.doc
10/2/09
2009-114-00
City of The Colony
TASK 6 Report
The objective of this task is to prepare draft and final reports describing the water
distribution system evaluation providing cost projections for improvements and
recommending an implementation schedule. Recommendations for piping
changes, storage capacity, and pumping capacity will be based on recognized
industry standards and State and Federal regulations.
Five copies of the draft report will be provided to the CLIENT for review. Upon
completion, 5 copies of the final report will be provided to the CLIENT. In
addition to the five printed copies of the final report, the report, figures, drawings
and data will be provided to the CLIENT in electronic format.
C. SPECIAL SERVICES
Special Services to be performed by the ENGINEER, if authorized by the
OWNER, which are not included in the above-described Basic Services, are
described as follows:
Special services may include, but are not limited to:
a. Additional meetings beyond the number of meetings listed in the basic
services;
b. Assistance with on-site data collection or field services, not defined in
the basic services;
c. Conversion of any hard-copy data, specified in the basic services to
be provided in electronic format by the CLIENT, to electronic format.
e. Additional modeling and analysis to include conditions that are not
listed in the basic services, and
f. Preliminary or detailed design of recommended improvements listed
in the Final Report.
Page 4 of 4
F:\Busdev\Proposals\Proposals_2009\2009-114-00_Colony Water Master_Plan\Colony_water MP Scope_v6.doc
10/2/09
ATTACHMENT B
ALAN PLUMMER ASSOCIATES, INC.
HOURLY PEE SCHEDULE
209
Staff Description od 2009 Rate
Code
Admin Staff Al-A3 $ .65.00
Senior Admin Staff A4 $ 7x.00
Designer[Technician 01-C2 $ woo
Senior Designer/Technician, 03-G4 $ 100.00
Engineer-in-Trairiing!Scientist-in-TrEiiriing ES1-ES3 $ 95.00
Project Engineer/Scientist ES4 $ 110.00
Senior Praject.EngineerlSeien# st ES5 125 0
Project Manager ES-6 $ 150..00
Senior Project M. anager ES7 $190.00
Principal ES8-ES9 $ 224.00
Billing rates may be adjusted by up to 4 percent annually (at the beginning
of each calendar year) during the term of this :agreement.
A.'rhultipiier of '1,15 will. be applied 6 all direct expenses
,CURRENT
City of The. Colony.
Water Distrttiutton System Master Platt
Water-SystemMaster Ptan
2008~714•Q4
Level 2.(PhaSe) ho. and Desodptlon. PdOclpal. Sr. Prof Mgr No) En_pr" Tezhnlalap Clerical Total Labor Percent of
tsvats(TaA)No.andCescnpftin (hrs) {firs) {hrs (lrrs) (hrs) Hours Foe(SU) Totat'Fae
Water system Master Plan 26 404 452 86 16 684 $ 136,400 400.6%
.A ItlaterSys)ern'}fydXdullF 141etieitng 46 76 586 52 0 539 $ $$,$90 77..S*A
.1 Pala attanng _ 20 1a 38 $ 3,900 4:5°k
X2.1 InftiatRavreN.ancfFk-ldTasBng 2 24 -f$ 44 $ 4,800
2.2 ttpd feMiDdef ti 40 18 fib S 7,700 $.914
2.3 reve'o PDemandMibution
4 48 52 S 8.300 7.3%
9,1 OpePatiobafQu;es'- _e.».,-...._.__ 2 16 98 .3 2,200
9.2 Ca,orateSteatStaleWoW 1$ 60 7$ S x900 11.5
x.,_...
33 EPS:Cafibraiion 2 1& 60 78 S 111,400_ f2:D"!.•
r
4. Y :pefne hfiprovamant Criteria
4 a 12 S. 11740 2.0
4.2 Develop Demaod Scenados 2 16 t5 S w 2,200: zk.
4.3 _ ffodefRtms ....,.w _ . _ 4 40 44 :S 5;400 6.3%
^ 44 EvaNare Improvement Rationale 4 14. 24
$ 50 S 7;000. 8.i%
4.5 Opinion ofProbabte Cost 4 4 32 „ _ _ -00 S 5;3bQ '$_155.
B Qaneral Servicea_ Is Is 84 24 1$ 448 $ 48,808 22.7 1
5 AfeEf~rx~s(3} 12 12 24
48 7,700 8.9'0
6- Re~oort 4. 1.8 AO 24 16
100 S 11500. 138.
TOTALLABOR_
Total Tabor Flours 26 104 4521. 88 4& 684
Total Labor Amount S 8$j400 .
Labor Rates per Hour $220 $190 $115 $90 $75
TotalAmountsbyLabor Cale.9ory $ 3,720 $ 49,7$0 ~y 51,980 $ 7,740_ $ 1,264 $ .86,400
Labor Call, 0 Percent ~of-rotai-Labor 22.3% 80:2% 9.0%. 1.4% 160.81
TOTAL EXOENSES Isee breakd6ni bet"A
Total Subconsultants. 5
Total Reimbarsables $ 1,480
Total Expenses $ 1,400
3RAND TOTAL =Water System Master Plan $ 87,800