1396 Reiss Eng WO DW1101139b
PURCHASING DEPARTMENT
T RANSMITTAL MEMORANDUM
To: City Clerk /City Manager
RE: Work Order for Reiss Engineering Inc for $27,900
The item(s) noted below is /are attached and forwarded to your office for the following action(s):
Development Order
Final Plat (original mylars)
Letter of Credit
Maintenance Bond
Ordinance
Performance Bond
Resolution
Once completed, please:
❑ Return original
❑ Return copy
Special Instructions:
Need executed signatures
❑ Mayor's signature
Safe keeping (Vault)
(1 1 q A
City Manager Signature
City Clerk Signature
vW F:3
v
Please advise if you have any questions regarding the above. Thank you...
V & , Kj C� �- 11
From Date
TADept_ forms \City Clerk Transmittal Memo - 2009.doc
EXHIBIT A
WORK ORDER FORM
Work Order Number 3
CITY OF SANFORD FLORIDA
Master Agreement/Contract Number: 1312
Dated: May 5, 2010
Contract/Project Title: Water Qualit Improvements Project - Hydraulic Modeling for Aux. Plant
Solicitation No: RFQ 08/09 -15 1 Sanford Project No. P0 l 10 ( 1
Purchase Order No.
Consultant/Contractor: Reiss Engineering, Inc.
Consultant/Contractor's Business Address, Phone Number, Fax Number and E -mail Address
Reiss Engineering; 1016 Spring Villas Point, Suite 2000, Winter Springs, FL 32708
ATTACHMENTS TO THIS WORK ORDER
METHOD OF COMPENSATION
DRAWINGS /PLANS /SPECIFICATIONS
X
FIXED FEE BASIS
X
SCOPE OF SERVICES
TIME BASIS -NOT TO EXCEED AMOUNT
SPECIAL CONDITIONS
TIME BASIS - LIMITATION OF FUNDS
X
PRICING IINFORMATION
UNIT PRICE BASIS -NOT TO EXCEED AMOUNT
WO TERMS AND CONDITIONS
TIME FOR COMPLETION: 165 days Days of the effective date of this Work Order
Effective date- this Work Order:
Time for completion: The services to be provided by the Consultant/Contractor shall commence upon execution
of this Work Order by the parties and shall be completed within the time frame indicated above. Failure to meet
the stated completion requirement may be grounds for termination for default.
Work Order Amount: Dollars Expressed in Numbers: $ $27,900
Twenty seven thousand and nine hundred dollars only.
In Witness Where of, the parties hereto have made and executed this Work Order on the
respective dates under each signature: The City through its City Commission taking action on the
and the Consultant/Contractor by and through its duly authorized corporate officer having the full and complete
authority to execute same.
CONS U LTANT /CONTRACTOR
ATTEST: EXECUTION:
f
ignature, Corporate Offic Signature, Corporate President
r '-' lI
Corporate Officer Printed Name, Title and Date Corporate President, erinted Name and Date
CITY OF SANFORD
i nat e, Purchasing Manager
Bill Smith
Purchasing Manager, Printed Name and Date
/
Signature, My Clerk V Signatur terim Manager
Jan Dougherty Tom George
City Clerk, Printed Name and Date Interim City Manager, Printed Name and Date
Revised: 1 -6 -2011
CITY OF SANFORD, FL.
Scope of Services & Fee Schedule
Auxiliary Water Treatment Plant
Process Design Engineering Services
Ozonation and Granular Activated Carbon Additions
June 24, 2011 Rev
Owner: Sanford, FL
Consultant: Reiss Engineering, Inc. (REI)
I. INTRODUCTION
Background
The City of Sanford (City), Florida's Auxiliary Water Treatment Plant (Auxiliary WTP)
was the site of a recent granular activated carbon (GAC) pilot study conducted by Reiss
Engineering, Inc. (REI). The City also operates the Main Water Treatment Plant (Main
WTP) which historically produces the majority of flow delivered to the distribution
system. During the Auxiliary WTP study, the feed water to the pilot unit was variable in
quality relative to disinfection by- product (DBP) precursor material. In summary, the
average pilot feed water quality contained a TOC equaling 2.0 mg/L and UV -254 of 0.06
cm 1 . Specific UV absorbance (SUVA), another indicator used to measure DBP
formation precursor material, averaged 3.2 L /mg -m which is within the typical range for
Florida ground waters. City records indicate the average raw water (prior to aeration)
total sulfide concentration is 0.8 ppm. Feed water total sulfide to the pilot (drawn from
the ground storage tank located downstream of the aerator) was virtually zero during the
pilot study. Bench scale trihalomethane (THM) testing of aerated raw water resulted in
the formation of simulated distribution system (5 day water age) THM concentration
averaging approximately 150 ppb.
The pilot study showed that GAC treatment can reduce the THM formation potential at a
five day water age to below the regulatory limit of 80 ppb. GAC treatment is
accomplished through the adsorption of naturally occurring organics in the water supply
which, when combined with free chlorine used for disinfection, react to form THM.
Actual distribution system monitoring point THM levels will depend on the percentage of
treated Auxiliary WTP flow and Main WTP flow. The GAC pilot study recommended
the consideration of ozonation for the oxidation of total sulfide in the raw water supply.
The City is planning on conducting an ozonation and GAC pilot study at the Auxiliary
WTP in the July /August 2011 time frame.
To facilitate the timely application by the City of a grant /loan from the State of Florida
for the treatment at the Auxiliary WTP, the City authorized CPH Engineers to prepare a
design for GAC addition at the Auxiliary WTP. The City is requesting this proposal from
REI to assist CPH Engineers by preparing process design engineering services to support
both GAC treatment and future raw water ozonation at the Auxiliary WTP. In addition to
Page 1 of 5 40 REISS ENGINEERING
R: \Projects \6613 -GAC Pilot Study\Project_Mgmt\Sanford Process Design Engineering Memot_6 24_1 l_final_revl.doc
REI experience, the design will include GAC process findings identified during the GAC
pilot testing (previously conducted by REI) and during ozonation/GAC pilot studies to be
conducted by the City.
II. SCOPE OF SERVICES
TASK 1— PROJECT ADMINISTRATION
1.1 Kick -Off Meeting — REI will prepare for and attend a project "kick -off' meeting
with the City and CPH Engineers to discuss the project goals and objectives,
clarify roles and assignments, as well as review the project schedule and
deliverables.
1.2 Progress Reports, Coordination and Meetings — REI will prepare progress
reports and invoices to be submitted on a monthly basis, or as requested by the
City for the duration of the project. REI will perform project coordination, and
conduct two update meetings with the City and /or CPH Engineers as appropriate.
Deliverables:
♦ Meeting agenda and notes.
♦ Monthly progress reports.
TASK 2 — PILOT STUDY ASSISTANCE
2.1 Pilot Study Review — REI will review the pilot study protocols prepared by the City
prior to the City's conducting the ozonation and GAC pilot studies which will provide
necessary design details for the proposed ozone and GAC treatment additions at the
Auxiliary WTP. One review meeting is included in this scope of work to review REI's
comments with the City.
2.2 Services During Pilot Field Activities — REI will decommission the GAC pilot unit at
its present location and make it available for the City to retrieve, transport and set -up at
the Auxiliary WTP. The City will package and return the unit to Calgon Corp. in PA at
the completion of the project. REI will instruct the City in the proper "loading" of GAC
carbon, and will provide the two types of GAC to be tested.
TASK 3 — PROCESS DESIGN & NARRATIVE INFORMATION
Task 3 will focus on generating the process design engineering and written narrative to be
presented in a technical memorandum. The various tasks below list the information to be
prepared by REI for inclusion in the memorandum.
3.1 Project Description - REI will develop a brief description of the new treatment
processes and their purpose. The memorandum will document the existing design
capacity of each well, existing plant treatment facilities, and the permitted operating
capacity of the plant each of which will be provided by CPH Engineers and the City. A
Page 2 of 5 REISS ENGINEERING
R: \Projects \6613 -GAC Pilot Study \Project_Mgmt \Sanford Process Design Engineering Memot_6_24_1 l_final_revl.doc
capacity analysis of proposed facilities will be prepared by REI in accordance with the
Florida Department of Environmental Protection (FDEP) requirements. The proposed
additional elements of the project include:
1. Ozone Treatment Facilities Addition
• Ozone side - stream injection system (including booster pumping)
• Ozone generation using liquid oxygen gas supply
• Ozone dissipation and/or disinfection process (if needed)
2. Granular Activated Carbon (GAC) Addition
• GAC contactors
3. Upgrade sizing (as needed) of water supply pumps to account for additional
GAC and ozone treatment processes
4. GAC backwash supply, storage and disposal
3.2 Treatment Facilities — Based on information obtained from the GAC and ozonation
pilot study, as well as historic records, each compiled by the City, a water quality
assessment review will be prepared by REI in relation to microbiological, physical and
chemical characteristics of the raw water, including sulfide - related measurements.
Actual compliance needs to be evaluated utilizing water quality modeling and input on
the influence of the Main WTP finished water impact on DBP concentrations at the
compliance monitoring locations. The hydraulic modeling is not included in this scope
and fee, but will be proposed in a separate water quality modeling proposal. However, a
discussion will be provided to evaluate the existing facilities relative to applicable
primary and secondary drinking water standards, including DBP control. A preliminary
evaluation of the adequacy of the REI's proposed Auxiliary WTP GAC and ozonation
treatment facilities (as set forth in below tasks) to meet applicable standards and
requirements, given the quality of the raw water, will be provided.
3.3 Process Flow Diagram and Hydraulic Profile — A conceptual process flow diagram
will be prepared showing all new, altered, or existing water treatment processes, chemical
application points, water pumping facilities, bypass arrangements and waste collection,
storage and discharge streams. A simplified hydraulic profile will also be established to
identify approximate relative water elevations through the treatment facilities at the
design flow rate of 4.5 MGD - MDD at the Auxiliary WTP.
3.4 Treatment Chemicals and Residuals Handling — The range of chemical doses
needed (as identified during pilot testing) will be outlined for each treatment chemical
used, and the average day demand for chemical consumption will be calculated to
determine the minimum storage facilities required. Evaluation of the types, quantities
and characteristics of residuals generated by the GAC water treatment facilities will be
conducted. Backwash treatment process(s) will be set forth in Task 3.3 above.
3.5 Process Design Treatment Criteria — The process engineering will delineate design
criteria for the identified facility improvements, to include: sizes, capacities, retention
times, loading rates, and associated performance- related criteria. Any necessary housing
Page 3 of 5 REISS ENGINEERING
R: \Projects \6613 -GAC Pilot Study\Project_Mgmt \Sanford Process Design Engineering Memot_6_24_1 1_final_revl.doc
and safety or protective equipment required for new or altered chemical application
facilities will be identified.
3.6 Disinfection Credit - The useful capacity of the storage tanks will be calculated and
provided in the report. The applicability for addition of interior baffling will be
addressed for the potential improvement of the "Ct" baffling factor. Additionally, the use
of ozone residual to provide disinfection credit will be evaluated. A formal submission to
the FDEP for disinfection credit is not included in this scope and fee since the extent of
any modifications to the existing facilities is unclear at this time.
Deliverables:
♦ Technical memorandum to include:
• Narrative descriptions
• Process flow diagram
• Hydraulic profile
• Design criteria
• Ct disinfection calculations
TASK 4 — SCHEMATIC DIAGRAMS AND PLANS
Task 4 includes the preparation of schematic process diagrams and conceptual layout
plans, as described by the design and narrative developed in Task 3, for inclusion in the
technical memorandum. These design tools will be used to summarize plans relative to
use of available space on the site and within the existing structures, as well as define
process modifications and operational improvements to be made within this project.
These activities are primarily related to process and hydraulic requirements, not detailed
plans,
4.1 Ground Storage Tank Modifications — REI will provide schematic diagrams
proposed modifications (if any) to the ground storage tanks. The useful capacity
of the storage tanks will be calculated and provided by Task 3.2 above. The
applicability for addition of interior baffling will be addressed for the potential
improvement of the "Ct" baffling factor.
4.2 Site Layout — REI will review the site layout plan showing major process yard
piping, pumping, storage and treatment facilities for existing systems and
proposed improvements as prepared by CPH Engineers. Building conceptual
floor plans will be reviewed for all proposed new facilities prepared by CPH
Engineers. These layouts will utilize the input of equipment suppliers for their
recommended components.
Deliverables:
♦ Schematic diagrams
♦ Proposed building floor layout drawings
♦ Site layout (Process)
Page 4 of 5 40 REISS ENGINEERING
R: \Projects \6613 -GAC Pilot Study\Project_Mgmt \Sanford Process Design Engineering Memot_6_24_1 l_final_revl.doc
III. COMPENSATION AND SCHEDULE
For the professional services set forth in this Scope of Services, the City shall compensate
REI a fixed fee for Tasks 1 — 4 on a percent completed basis as follows:
The following schedule is proposed for the tasks set forth in this scope of services.
Cost
TASK 1— PROJECT ADMINISTRATION
$3,400
TASK 2 - PILOT STUDY ASSISTANCE
$2,400
TASK 3 - PROCESS DESIGN & NARRATIVE INFORMATION
$13,500
TASK 4 — SCHEMATIC DIAGRAMS AND PLANS
$8,500
EXPENSES
$100
GRAND TOTAL
$27,900
The following schedule is proposed for the tasks set forth in this scope of services.
*Or 3 weeks after receipt of all pilot information and testing results
Page 5 of 5 REISS ENGINEERING
R: \Projects \6613 -GAC Pilot Study \Project_Mgmt \Sanford Process Design Engineering Memo" 24_11_final_revl.doc
Completion Date from Two
Weeks following Receipt of
Execution of Work Order
TASK 1— PROJECT ADMINISTRATION
On-goin
TASK 2 - PILOT STUDY ASSISTANCE
Following availability of pilot
unit
TASK 3 - PROCESS DESIGN & NARRATIVE
8 Weeks*
INFORMATION
TASK 4 — SCHEMATIC DIAGRAMS AND PLANS
8 Weeks*
*Or 3 weeks after receipt of all pilot information and testing results
Page 5 of 5 REISS ENGINEERING
R: \Projects \6613 -GAC Pilot Study \Project_Mgmt \Sanford Process Design Engineering Memo" 24_11_final_revl.doc