HomeMy WebLinkAboutCity of Tamarac Resolution (94)Temp. Reso. #9731
March 12, 2002 1
CITY OF TAMARAC, FLORIDA
RESOLUTION NO. R-2002-94
A RESOLUTION OF THE CITY COMMISSION OF THE CITY
OF TAMARAC, FLORIDA, AUTHORIZING THE
APPROPRIATE CITY OFFICIALS TO EXECUTE TASK
AUTHORIZATION NO. 02-05E WITH MATHEWS
CONSULTING, TO PROVIDE ENGINEERING SERVICES
FOR A WATER TREATMENT PLANT DISINFECTION
OPTIMIZATION STUDY PROVIDING FOR ALTERNATIVE
DISINFECTION METHODS IN THE TREATMENT OF
DRINKING WATER AND TO ENSURE THE FACILITY WILL
MAINTAIN COMPLIANCE WITH EXISTING AND PROPOSED
FLORIDA DEPARTMENT OF ENVIRONMENTAL
PROTECTION (FDEP) DRINKING WATER REGULATIONS,
IN ACCORDANCE WITH THE CITY'S CONSULTING
ENGINEERING AGREEMENT AS AUTHORIZED BY
RESOLUTION #R-2001-185, IN AN AMOUNT NOT TO
EXCEED $47,838.00; APPROVING FUNDING FROM THE
APPROPRIATE BUDGETED UTILITIES OPERATIONAL
ACCOUNT; AUTHORIZING THE APPROPRIATE CITY
OFFICIALS TO ADMINISTER THE CONTRACT; PROVIDING
FOR CONFLICTS; PROVIDING FOR SEVERABILITY; AND
PROVIDING FOR AN EFFECTIVE DATE.
WHEREAS, the City of Tamarac owns, operates and maintains the 20 MGD
capacity water treatment facility located at 7803 NW 61 st Street, Tamarac; and
WHEREAS, Recently enacted and future Florida Department of Environmental
Protection (FDEP) drinking water regulations, including the new Disinfectants/Disinfection
By -Products Rule, Lead and Copper Rule and the future Groundwater Rule, impose stricter
standards for water quality and disinfection by-product formation; and
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Temp. Reso. #9731
March 12, 2002 2
WHEREAS, the Optimization Study will evaluate water quality parameters for the
proposed alternative disinfection methods and make recommendations to ensure the
facility will maintain compliance with existing and proposed water quality requirements; and
WHEREAS, the City requires the service of a consulting firm knowledgeable in this
area and capable of providing recommendations for alternative disinfection methods and
recommendations for compliance with existing and future regulation requirements; and
WHEREAS, Mathews Consulting possesses the required knowledge and
experience to prepare a comprehensive Optimization Study of the City's Water Treatment
Plant; and
WHEREAS, Mathews Consulting has been pre -qualified as an approved consultant
for engineering services by the City of Tamarac; and
WHEREAS, it is the recommendation of the Director of Utilities that Task
Authorization No. 02-05E from Mathews Consulting be approved, executed and funded
through the budgeted Utilities Operational account; and
WHEREAS, the City Commission of the City of Tamarac, Florida, deems it to be in
the best interest of the citizens and residents of the City of Tamarac to accept and execute
Task Authorization No. 02-05E (a copy of which is attached hereto as "Exhibit 1 ") with
Mathews Consulting to provide Engineering Services for a Water Treatment Plant
Disinfection Optimization Study for a proposed amount not to exceed $47,838.00 and to
provide funding from the appropriate budgeted Utilities Operational account.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COMMISSION OF
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Temp. Reso. #9731
March 12, 2002 3
THE CITY OF TAMARAC, FLORIDA, THAT:
SECTION 1: The foregoing "WHEREAS" clauses are hereby ratified and
confirmed as being true and correct and are hereby made a specific part of this resolution.
SECTION 2: The appropriate City Officials are hereby authorized to accept
and execute Task Authorization No. 02-05E with Mathews Consulting to provide
engineering services for a Water Treatment Plant Disinfection Optimization Study, in
accordance with the City Consulting Engineering Agreement as authorized by Resolution
No. R-2001-185 on July 11, 2001, for a proposed amount not to exceed $47,838.00.
SECTION 3: The $47,838.00 is approved to be funded from the appropriate
budgeted Utilities Operational accounts.
SECTION 4: The City Manager, or his designee, be authorized to make
changes, issue change orders not to exceed $10,000 per Section 6-156 (b) of the City
Code, and close the contract award including, but not limited to making final payment
within the terms and conditions of the contract and within the contract price.
SECTION 5: All resolutions or parts of resolutions in conflict herewith are
hereby repealed to the extent of such conflict.
SECTION 6: If any clause, section, other part or application of this Resolution
is held by any court of competent jurisdiction to be unconstitutional or invalid, in part or
application, it shall not affect the validity of the remaining portions or applications of this
Resolution.
SECTION 7:
passage and adoption.
This Resolution shall become effective immediately upon its
Temp. Reso. #9731
March 12, 2002 4
PASSED, ADOPTED, AND APPROVED this 10th day of April, 2002.
ATTEST:
MARION-SWENSON, CMC
CITY CLERK
I HEREBY CERTIFY that I
have approved this
RESJQLUTION as to form.
ITCHELL S. N
CITY ATTOR
RG/JD/db
MgL
JOE SCHREIBER
O-
RECORD OF COMMISSION VOTE:
MAYOR SCHREIBER A e,
DIST 1: V/M. PORTNER 61 e'
DIST 2: COMM. MISHKIN Aye,
DIST 3: COMM. SULTANOF_Ayei
DIST 4: COMM. ROBERTS Aloe,
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"EXHIBIT 1"
CITY OF TAMARAC
Task Order Authorization No. 02-05E
Engineering Services for
Water Treatment Plant Disinfection Optimization Study
DATE: February 25, 2002
PROJECT DESCRIPTION
The City of Tamarac owns and operates a 20 mgd capacity water treatment facility which utilizes free
chlorine for disinfection of process water prior to distribution. The City is considering alternative
disinfection processes, including use of sodium hypochlorite and chloramines for disinfection. Newly
promulgated and future Florida Department of Environmental Protection (FDEP) drinking water
regulations, including the new Disinfectants/Disinfection Byproducts Rule, Lead and Copper Rule and
the future Groundwater Rule, impose stricter standards for water quality and disinfection by-product
formation. This Optimization Study will evaluate water quality parameters for the proposed alternative
disinfection processes and make recommendations to ensure the facility will maintain compliance with
existing and proposed water quality requirements.
SCOPE OF WORK
The services provided under this authorization will be divided into defined tasks. The following is the
description of the tasks to be completed by the Consultant:
Task 1— Investigative Phase
Subtask 1.1 Conduct workshop with plant operators to review existing facility operations (process
parameters, chemical dosage, unit process capacities, pumping capacities, etc.). Conduct
physical inspection of plant.
Subtask 1.2 Review historical water quality data and develop target water quality parameter list.
Provide list of additional water quality testing requirements to the City for completion of
optimization study.
Subtask 1.3 Review current drinking water standards for the City's system. Establish future drinking
water standard requirements and compliance time frames. Establish water quality goals
and objectives for City's system.
Task 2 — Field Testin
Subtask 2.1 Conduct field testing consisting of jar tests to determine chlorination requirements. Tests
shall be conducted with proposed sodium hypochlorite and ammoniation processes. Both
on -site generated sodium hypochlorite and bulk sodium hypochlorite will be included in
the testing program. Consultant will coordinate with on -site generation supplier to have a
pilot system available on -site during the project. Hypochlorite generated on -site by the
pilot unit will be used in the field testing study. Bulk hyuochlorite and ammonia to be
used in the field testing study will be provided by the City. Sampling events will be
02/27/02
conducted over three (3) days (total of 24 hours). Testing for bulk hypochlorite and on -
site generated hypochlorite will occur simultaneously.
The goal of the testing is to determine the appropriate dosages of sodium hypochlorite
and ammonia for disinfection of City water. The testing will also evaluate chlorine
persistence (e.g. how long the residual will last in the distribution system) and what levels
of free chlorine used as primary disinfection will be compatible with chloramine as a
secondary disinfectant.
Subtask 2.2 Develop chlorine residual/chlorine demand curves. Develop breakpoint disinfection
curve with ammonia (NH3). Testing event will be conducted over 1 day (8 hrs.).
Subtask 2.3 Perform a Simulated Distribution System Test analyzing disinfection by-product (DBP)
formation potential. Other water quality parameters that will be measured include total
organic carbon (TOC), free and total chlorine residuals, temperature and pH. This testing
will consist of analyzing formation potentials after the final disinfection has been applied
by analyzing stored samples of the finished water at set times usually for a period up to 5
days. Consultant will provide on -site testing services for three (3) consecutive days (total
of 24 hours). City staff will be available to complete additional two (2) days of testing, if
required.
Two separate water samples will be analyzed, one using free chlorine as the secondary
disinfectant and the other using combined chlorine as the secondary disinfectant. By
measuring the DBP levels at various set times, "true" formation potential curves will be
established for both sample waters, allowing for an estimate of the difference in DBP
formation potential under the alternate disinfection regimes. This information will also
be used to predict the estimated DBP levels at critical locations in the distribution system.
Coordinate lab testing of jar test product for water quality requirements [e.g. total
trihalomethanes (TTHMs), haloacetic acids (HAAs), etc.]. Evaluate lab test results and
summarize finished water quality under proposed disinfection processes based upon jar
test results.
Subtask 2.4 Conduct desktop analysis for lead and copper corrosion control based upon historical
field testing data collected by the City. If desktop analysis indicates corrosion may be an
issue in the system, evaluate need for the City to conduct additional field testing to
confirm corrosion issues and to recommend corrective actions.
Task 3 — Preliminary Engineering of Disinfection Alternatives
Subtask 3.1 Provide preliminary engineering layout (in 11"xl7" schematic format) for sodium
hypochlorite, ammoniation and carbonation (if required) systems. Provide summary of
mechanical, structural and electrical requirements for each unit process.
Subtask 3.2 Provide preliminary capital and annual cost opinion for proposed unit processes.
02/27/02 2
Task 4 — Optimization Study Final Report
Subtask 4.1 Prepare report titled "Water Treatment Plant Disinfection Optimization Study" presenting
the results and recommendations of the above work for submission to the City. Submit
three (3) copies of the report in draft form for review by the City. Attend one (1) review
meeting with City staff to review results of the draft report.
Subtask 4.2 Submit ten (10) copies of the Final "Water Treatment Plant Disinfection Optimization
Plan " which shall incorporate City's comments.
ADDITIONAL SERVICES
Mathews Consulting will provide Additional Services as mutually agreed upon between Mathews
Consulting and the City. Additional Services may include any service that is requested that is not
specifically outlined within the Scope of Services.
ASSUMPTIONS
Work described herein is based upon the assumptions listed below. If conditions differ from those
assumed in a manner that will affect schedule of Scope of Work, Consultant shall advise City in writing
of the magnitude of the required adjustments. Changes in completion schedule or compensation to
Consultant will be negotiated with City.
1. City will provide to Consultant copies of water treatment plant site plan and process flow diagram
within one week of notice to proceed.
2. City will provide to Consultant all available raw and finished water quality, flow data and
corrosion control data for the preceding 5 years of operation within one week of notice to
proceed.
3. City will provide to Consultant any available equipment and operation data for existing WTP
facilities, including manufacturer cut -sheets, specifications, pump performance curves, chemical
dosage rates, and related operating setpoints within one week of notice to proceed.
4. City will provide Consultant access to their on -site laboratory facilities including use of
equipment, materials and reagents necessary to perform the tasks. City will supply bulk
hypochlorite and ammonia to use for the testing.
5. City will be requested to conduct additional water quality testing as determined necessary by
Consultant to complete water quality evaluations.
6. All lab costs associated with the optimization study will be paid for directly by the City.
02/27/02 3
CONTRACT PERFORMANCE
Proposed fees and schedule for completion of major work tasks are summarized below.
COMPLETION DATES:
The duration of major work tasks are summarized below:
TIME (CALENDAR DAYS) FROM
ENGINEERING SERVICES NOTICE -TO -PROCEED
Task 1— Investigative Phase 30 days
Task 2 — Field Testing 60 days
Task 3 — Preliminary Engineering of Disinfection Alternatives 90 days
Task 4 — Optimization Study Final Report 110 days
TOTAL PROJECT TIME PERIOD
SUMMARY OF PROPOSED FEES:
110 days
Proposed labor costs and associated expenses for basic engineering services and additional engineering
services are tabulated below and detailed in Attachment A.
NOT TO EXCEED
ENGINEERING SERVICES FEES
Task 1 — Investigative Phase $ 8,618.00
Task 2 — Field Testing $14,932.00
Task 3 — Preliminary Engineering of Disinfection Alternatives $ 9,853.00
Task 4 — Optimization Study Final Report $13,735.00
TOTAL ENGINEERING SERVICES $47,138.00
EXPENSES FEES
Reimbursable Expenses $ 700.00
TOTAL PROJECT COST = $47,838.00
Additional Services - The fee for Additional Services shall be billed using the Hourly Rate Schedule
contained in the General Contract, or as an agreed upon fixed fee.
02/27/02 4
IN WITNESS WHEREOF, the parties have made and executed this Agreement on the respective
dates under each signature. CITY OF TAMARAC, through its Mayor and Mathews Consulting, Inc.,
signing by and through its President duly authorized to execute same.
CITY OF TAMARAC
J e chreiber, Mayor
Date
L ,► .
ATTEST: eefftey L. ille�rOCity Manager
2 O
Marion Swens n, CMC Date
ATTEST:
Corporate Secretary)
David L. Mathews, Secretary
Type/Print Name of Corporate Secy.
(CORPORATE SEAL)
MATHEWS CONSULTING, INC.
Company Nam
Signature of P sident
Rene L. Mathews, President
Type/Print Name of President/Owner
aa.�)-U01-
Date
02/28/02
CORPORATE ACKNOWLEDGEMENT
STATE OF FLORIDA .
:SS
COUNTY OF,�
I HEREBY CERTIFY that on this day, before me, an Officer duly authorized in the Sate aforesaid and in
the County aforesaid to take acknowledgments, personally appeared Rene L. Mathews, President of
Mathews Consulting, Inc., a Florida Corporation, to me known to be the person(s) described in and who
executed the foregoing instrument and acknowledged before me that he/she executed the same.
WITNESS my hand and official seal this ay of 20y z
Signature of Nota�atLarge
ic
r•SN Nancy %�S"N State of Florida
*Ug * My Commission CC914476
E*res February 28, 2004
Print, Type or Stamp
Name of Notary Public
[]Personally known to me or
Produced Identification
Type of I.D. Produced
DID take an oath, or
Fj DID NOT take an oath.
02/27/02
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