205-CPH-Amendment 30 AMENDMENT 30
TO
AGREEMENT
DATED DECEMBER 7, 1983
FOR
CONSULTING ENGINEERING SERVICES
BETWEEN
THE CITY OF SANFORD, FLORIDA,
AND
CONKLIN, PORTER & HOLMES - ENGINEERS, INC.
FOR
FINAL ENGINEERING DESIGN
OF
ADDITIONAL AERATION TANK CAPACITY,
SLUDGE THICKENING,
DEMOLITION OF OBSOLETE EXISTING PRIMARY CLARIFICATION TANKAGE,
NEW LABORATORY BUILDING, REMODEL EXISTING LAB BUILDING,
REHABILITATION OF SECONDARY CLARIFIER NO. 2
AND NEW STEEL STORAGE BUILDING
The Amendment dated this/ day , in the
year Nineteen Hundred and Ninety by and between the CITY OF SANFORD,
FhORIDA (hereinafter called the OWNER, and CONKLIN, PORTER & HOLMES -
ENGINEERS, INC. (hereinafter called the ENGINEER), is mutually agreed upon
and declared an authorized Amendment to an Agreement dated December V,
1983, between the parties, herein setting forth the scope~ terms and
conditions of the work herein authorized.
In case of conflic~ between this Amendment 30 and the original Agreement
of December V, 1983, this Amendment shall govern for the work described
herein. All other Amendments which have been previously executed provided
for other municipal engineering services and have no applicability to the
services covered by this Amendment.
CPN Project No. S0602.59
SECTION I
GENERAL PROVISIONS
1.1 PROJECT BACKGROUND
Sanford's treatment plant improvements program is being implemented in phases
to more closely match improvements to needs. Phasing has been necessary to be
able to fund the improvements. Phases initially implemented included sludge
digestion and sludge dewatering improvements. The most recent phase included
filtration, chemical feed equipment, clarification and high level disinfection
as needed to produce reclaimed water. The scope of work of this Amendment will
include the remaining plant expansion items which were identified in the 201
Plan Amendment as "Future Improvements", plus additional control building and
laboratory equipment space and a storage building. These plant expansion items
include additional aeration tank capacity, sludge thickening equipment,
chlorination equipment, removal of the existing obsolete primary clarifier, and
restoration of the primary clarifier site.
1.2 NEED FOR THESE SERVICES
The 201 Plan predicted growth in the customer base and showed that the plant
capacity needed in 1990 was 6.26 MGD and would grow to 6.56 MGD by 1995. The
plant's original design capacity was 6.0 MGD and; with the addition of the
sludge handling and reclaimed water faci!itjes, has a rerated capacity of 6.5
MGD. Tbereforef the actual flows are predicted to exceed design capacity
before 1995.
Additionally, a utility must have capacity in place and ready to serve as it
commits to being able to serve new development. The development can occur and
the flows can rise much quicker than the ?]ant capacity can be added. The C~ty
currently has approximately 0.50 MGD of development on the books which would
mostly absorb the current excess capacjtyo tt is necessary to beg~n des~g~
this year (1990) to bare capacity ready to meet the needs of growth~ because
the time required from beginning of design to comple~ion of cor~struc~ion can be
from two to three years.
The existing laboratory and control building have been expanded and modified on
numerous occasions. An expansion of approximately 700 square feet was
completed in 1981. However~ the amount of testing and analysis have increased
considerably since that time. A new laboratory is recommended to allow
adequate space for necessary modern testing and laboratory safety equipment and
meet State and Federal regulations regarding laboratory analyses and safety.
Safety equipment which is not currently available, but recommended, include a
fume hood, an eyewash and safety deluge shower in case of accidental exposure
to hazardous laboratory chemicals. Individual explosion-proof storage cabinets
for acids, bases, and salts, and individually enclosed work stations for TKN,
Distillation and Muffle Furnace/Drying Oven analyses are also recommended.
These modifications cannot be reasonably placed into the existing structure,
and it is important that the current lab facilities remain in full operation
while new facilities are developed. It is recommended that new facilities and
the recommended modifications of the existing building be constructed as part
of new construction.
SECTION II
BASIC SERVICES OF THE ENGINEER
2.1 GENERAL WORK DESCRIPTION
2.1.1 Additional Aeration Tank Capacity - We will compare alternative
aeration systems to include medium and coarse bubble systems of
different types or manufacturers. We will review the capital and
operational costs as well as the configurations, and advantages and
disadvantages of these alternative systems. We will bring the results
to the City for a decision on the type of system to be utilized in the
plant. The new aeration tanks will be designed identical to the
existing aeration tanks, except for limited ~odifications as may be
requested by the City or found necessary by use of another air
delivery and diffusion system.
Plans will also be prepared for retrofitring the selected aeration
system to the existing tanks. It may be possible that such a
modification can be an alternate bid item so that it may or may not be
constructed, depending on costs and availability of funds. There may
be some advantages in keeping the existing system in place to compare
power, maintenance and other operating costs of the existing coarse
bubble system to the selected medium bubble system. That comparison
would be a stronger basis for a future retrofit. It is highly
unlikely that any analysis for a new system will result in utilizing a
coarse bubble diffuser system, due to the improved quality of current
day medium bubble d]ffusers, significantly higher in efficiency and
and, therefore, significant power cost savings associated with the
medium bubble 8eration systems.
Depending on which aeration system is selected, the air delivery
system capacity will be examined and an appropriate number of new
blowers and necessary additional piping will be designed for
installation into the overall system. It was projected in the
preliminary engineering portionof the 201 Facilities plan that if the
existing aeration system is converted to a medium or fine bubble
system, only one (1) additional blower, making a total of four (4)
blowers, will be required to provide adequate aeration. However, the
existing blowers have been in use since approximately t973 and have
all been rebuilt at least once. Therefore, new blowers with optimum
efficiency and high efficiency electric drivers will be specified to
replace the existing blowers.
2.1.2 Sludge Thickening - In the original 201 Facilities Plan, it was
projected that a gravity sludge thickener would be required to provide
adequate sludge thickness for sufficient detention time (SRT) in the
digestion system. With the advent of new and more stringent sludge
regulations, additional thickening beyond that which can occur in a
gravity thickener will be required and, therefore, we will
preliminarily analyze alternative thickening systems including, at
least, Dissolved Air Flotation (DAF) thickening, centrifuge
thickening, rotating drum thickening, and belt thickening. We will
analyze the maximum thickness of sludge which can be then digested in
the aerobic digesters and prepare alternative analyses for systems
which provide that amount of thickening in conjunction with the amount
of detention time or sludge age required for proper sludge
stabilization per applicable regulations. We will determine what
meters, pumping systems, controls, holding tanks, piping systems,
chemical feed systems, power, etc., are needed for a complete, proper
operating sludge thickening system.
We will review this preliminary planning with the City and, in
conjunction with the City, select the most cost-effective and operable
system to be incorporated into the treatment plant. We will identify
similar systems of sludge thickening and visit those plants as
appropriate with operational personnel to assure that the City staff
agrees as to the operational features to be designed into the system.
Upon approval of the thickening concept by the City, we will perform
final designs and specifications for the selected system.
For purposes of this proposal, it is assumed that a mechanical sludge
thickening system will be selected and that it will be associated with
a building to shelter the equipment and operators. The building will
be architecturally and structurally similar to the sludge handling
building, and designs will be reused to the maximum extent possible.
2.1.3 Renovation of Existinq Clarifiers
2.1.3.1 Primary Clarifier
The 201 Facilities Plan identified the existing primary clarifiers to
be renovated in the expansion program, however, because the combined
sewer system will be separated prior to this plant expansion, there is
no need to operate the primary clarifiers after the separation has
taken place. Therefore, instead of providing a renovation of the
primary clarifiers, plans and specifications should be developed such
that the primary clarifiers are removed and the site restored to a
presentable condition with the absence of those clarifiers. However;
piping will be provided to maintain the full use of the diversion
ponds.
2.1.3.2 Secondary Clarifier
Two of the existing secondary clarifiers were constructed with the
original secondary plant construction in 1973. Clarifier No. 1 has
been renovated by City forces. The City has also purchased a spur
gear drive for Clarifier No. 2, because it is an item which requires a
relatively long delivery time. The City desires to have the
renovation of Clarifier No. 2 done under this plant expansion
contract, with the spur gear being furnished by the City for
incorporation into the work by the Contractor. The Engineer will
provide the needed plans and specifications for the renovation.
2.1.4 Laboratory Buildinq
This proposal is based on the provision of a new laboratory structure
to be constructed in conjunction with the proposed thickening
equipment building. It is proposed that the lab facility be on the
second floor of the structure, located adjacent to the sludge
dewatering building, be of the same architectural design as the sludge
dewatering building and be connected to it by an aerial walkway
spanning from the second floor of the sludge building to the
laboratory. The existing laboratory building will be remodeled to
provide a reception lobby area, as well as an operator's office with
limited laboratory facilities for simpler routine process control
evaluation and testing.
Services provided will include structural, architectural; electricair
heating, ventilating and air conditioning as needed. Connection of
this Dew bu~tding to the existing will simplify the operation and
supervision and will allow joint use of some systems; such as storage
and restrooms. Also included will be the specifications of laboratory
furniture, cabinets, fume ho~d, safety shower, etc.~ as requested by
the City. No glassware, e~pendables, or analytical equipment will he
proposed under th~s inntract. Computer equipment l~n~e6 to plant ana
system monitoring and controls and capable ~f running the plant's
"Operator 10" software w~]i also be included and appropriately
situated for operational personnel.
2.1.5 Chlorination System
The Utilities Department has made gradual modifications to the
original chlorination system on an as-needed basis over a number of
years. The new reclaimed water production system, however, places a
great deal of stress on the chlorination equipment due to the need for
high level disinfection to make the water safe for unrestricted public
access. Under this contract, the chlorination system will be studied
and new equipment will be planned and specified to reliably feed
adequate amounts of chlorine as efficiently as possible. To promote
efficiency and economy, flow proportional feeding will be considered,
as well as possibly adjusting feed depending on measured residuals.
2.1.6 New StoraGe Building
The Utility Department has identified the need for an additional
storage and maintenance building to be located on the headworks side
of the facility. The building will be a metal prefabricated building
approximately 40 feet by 60 feet, placed on a concrete floor slab.
The building shall have a separation wall and separate area for use as
a mechanics area. The soils subconsultant retained by the City will
be required to evaluate the foundation requirements. The building
will be designed, specifications written, and a site plan prepared as
an additive bid item.
2.2 PROJECT REVIEW
2.2.1 The project review will include site inspections; project meetings;
end preliminary selection of appropriate alternate aerat~on add sludge
thickening systems~ chloriDetion equipment: laboratory equipment and
computer system.
2.3 DATA COLLECTION
2.3.1 Data gathering will involve coordination with City and FDER engineers
and other related entities. Also information from past engineering
work by CPH which may be useful in connection with this project will
be examined.
2.3.2 Prepare planning, scheduling, budgeting, data gathering and
negotiation of subcontractual agreements necessary for full
development of final design, including Construction Plans and Contract
Documents.
2.4 PRELIMINARY ENGINEERING
2.4.1 Review alternatives for aeration and sludge thickening systems.
Review results with Owner's Engineer and staff. Refine project scope
and detail approach.
2.4.2 Check design criteria for compliance with DER and other regulatory
agency requirements including Federal requirements.
2.4.3 Survey andgeotechnical exploration work are not included in this
Amendment and would be obtained by the Owner with coordination
assistance from the Engineer.
2.4.4 Coordinate with the Owner's surveyor to obtain any required additional
surveys, aerial planimetr~c mapping, and horizontal and vertical
controls. Coordinate with the Owner's geotechnical engineer as
reql!ire~ for necessary investigations and ~nformati~n.
2.4.5 Based on the information and data ~ompiled, an overall preliminary
engineering plan will be prepared. This plan will show the locations
of structures, pumps, pipes, meters, valves and similiar features.
The plan will also identify the types of systems to be employed and
will show hydraulic profile information and utilities needed. Access
walks, stairs, ramps, etc., will be identified. Tank sizes will be
calculated in accordance with design criteria.
2.4.6 Based on the determination of the appropriate alternative aeration and
sludge thickening system, prepare a preliminary cost estimate and
review the estimate with the Owner.
2.5 FINAL DESIGN
2.5.1 Upon approval of preliminary engineering an~cost estimates, prepare
necessary calculations and designs required to determine final size,
configuration, and details to be utilized for structural systems,
piping, meters, valves, etc.
2.5.2 Prepare final plans and a draft of contract documents for the project.
2.5.3 Based on the final engineering plans, prepare an opinion of probable
construction cost and technical specifications as part of the final
contract documents.
2.5.4 Coordinate final design with City to ensure that operational needs and
preferences of the City Staff are met.
3.5.5 Preparation for an~ meetings with regulatory agencies to discnss
project concerns, progress, and permitting requirements. For
estimating purposes, it has been assumed that no more than two such
meetings will be neeaed.
2.5.6 The Engineer will assist the Owner in his efforts to secure all
approvals necessary for the construction of the project. For
estimating purposes, it has been assumed that the only project
approval required will be an FDER construction permit. Consideration
will be given to applying for the permit on the basis of the
preliminary engineering.
2.5.7 Advise the Owner of any adjustments of the opinions of probable
construction costs for the Project caused by changes in scope, design
requirements or construction costs, and furnish a revised opinion of
probable construction cost for the project based on the final Drawings
and Specifications.
2.5.8 Provide coordination, assistance and documentation as needed regarding
State Revolving Fund (SRF) loan financing. Assist the City in
compiling and filing financial data and in determining and fulfilling
program requirements of the Bureau of Local Government Wastewater
Financial Assistance of the Florida Dept. of Environmental Regulation.
2.5.9 Deliver up to twenty (20) copies of the Drawings and Specifications
for permitting, approvals and the Owner's file.
2.5.10 Make reasonable revisions as required based on reviews of regulatory
agencies and the City.
2.5.11 Note that bidding and construction services; startup services, and
project administration including performance evaluation and
certification are not included in this Amendment. It is contemplated
that they will be pro~iSed durin~ the construction phase of the
project under a subsequent authorization.
2.6 PLAN OF STUDY
The Scope of ~ervbn~ nutlined in Section !I 5s general in t~afure
not intended to detail all work activities needed to complete the
project. Further task definition is give]] jn the Plan of Study
attached hereto and incorporated heroin by reference.
SECTION Ill
ADDITIONAL SERVICES OF THE ENGINEER
3.1 GENERAL
If authorized in writing by Owner, Engineer shall furnish or obtain
from others Additional Services of the following types which are not
considered normal or customary Basic Services and are not included in
Section II. These will be paid for by Owner as indicated in Section
VI, if authorized.
3.1.1 Services resulting from significant changes in the general scope of
the Project or its design as outlined, including, but not limited to
changes in size, complexity, Owner's schedule, character of
construction; services resulting from significant delays not caused by
the Engineer; services or additional cost resulting from changes or
extra work not included in the scope of the Basic Services of this
Agreement; and revising previously accepted studies, reports, design
documents or Contract Documents when such revisions are due to causes
beyond the Engineer's control.
3.1.2 Investigation involving detailed consideration of operations,
maintenance and overhead expenses including preparation of operating
and maintenance manuals; preparation of earnings and expense
statements, feasibility studies, appraisals and valuations, detailed
audits or inventories.
3.1.3 Furnishing additional copies of reports and additional prints of
Drawings, Specifications and Contract Documents beyond those called
for in the Basic Services.
3.1.4 Furnishing services of independent professional associates and
consultants beyond those specified in the Plan of Study. If
additional property, boundary, right-of-way, legal descriptions,
appraisals, topographic and special utility surveys, hydrographic
surveys, soils borings, laboratory tests, soils studies and
evaluations and other special services become necessary, they shall be
considered for subsequent authorization as Additional Services.
3.1.5 Providing renderings or models for Owner's use.
3.1.6 Preparing documents for alternate bids determined by Owner as
advantageous to Owner for Contractor(s) work which is not executed or
documents for out-of-sequence work.
3.1.7 Preparing to serve and serving as an expert-'witness for the Owner in
any litigation, public hearing, condemnation proceeding, right-of-way
acquisition or negotiation, or other legal/administrative proceeding.
3.1.8 Additional services in connection with the Project including services
normally furnished by Owner and other services that may subsequently
become necessary that are not included in the Basic Services of this
Agreement.
SECTION IV
OWNER'S RESPONSIBILITIES
4.1 GENERAL
Owner shall do the following in a timely manner so as not to delay the
services of Engineer.
4.1.1 Provide full information as to his requirements for the project.
4.1.2 Assist the Engineer by placing at their disposal all available
information pertinent to the project including previous reports and
any other data relative to design and construction of the project.
4.1.3 Furnish to the Engineer, as required for performance of Basic
Services, data prepared by or services of others; all of ~hich
Engineer may rely upon in performing its services.
4,1.4 Provide access to and to make all provisions for the Engineer to enter
upon public and private lands as required for the Engineer or his
subconsultants to perform their work under this Agreement.
4.1.5 Provide such legal, accounting and insurance counseling services as
may be required for the Project, and such auditing services as the
Owner may require.
4.!.6 Designate in writing a person to act as City's representative with
respect to the work to be performed under this Agreement; and such
person sha!] have complete authority to transmit instructions, receive
information, interpret and define Owner's policies and decisions with
respect to materials, equipment elements and systems pertinent to the
work covered by this Agreement.
4.1.7 Provide all land, easements and rights-of-way, leases and other
agreements, needed for design and construction of the project in a
timely manner.
4.1.8 Give prompt written notice to the Engineer whenever the City observes
or otherwise becomes aware of any defect in the project.
4.1.9 Execute requests for approvals and permits drafted by Engineer from
all governmental authorities having jurisdiction over the project and
such approvals and consents from others as may be necessary for
completion of the project.
4.1.10 Furnish approvals and permits from all governmental authorities having
jurisdiction over the project and such approvals and consents from
others as may be necessary for completion oI the project.
4.1.11 Examine all studies, reports, sketches, addenda, change orders,
estimates, specifications, drawings, proposals and other documents
presented by the Engineer and render decisions pertaining thereto
expeditiously so as not to delay the work of the Engineer or his
subconsultants.
4.1.12 Furnish, or direct the Engineer in writing to provide, at the City's
expense, additional services in connection with the Project including
services normally furnished by the Owner and other services that may
subsequently become necessary that are not included in the services of
this Agreement.
4.1.13 Give prompt written notice to Engineer whenever Owner observes or
otherwise becomes aware of any development that affects the scope or
timing of EngiDeer's services.
4.1.15 Bear all costs incident to compliance with the requirements of this
Section iV.
SECTION V
PERIOD OF SERVICE
5.1 The provisions of this Section and the various rates and total
compensation for Engineer's services provided for elsewhere in this
Agreement have been agreed to in anticipation of the orderly and
continuous progress of the Project. Engineer's obligation to render
services hereunder will extend for a period which may reasonably be
required for the completion of the project including extra work and
required extensions thereto, but not to exceed twelve (12) months from
the date of the Agreement without renegotiation of rates and total
compensation provided for in this Agreement.
5.1.2 The Final Engineering Design, Drawings and Documents, ready for review
and submission to the Owner and regulatory agencies, will he completed
within five (5) months, following receipt of written authorization to
proceed.
5.1.3 If Owner requests significant modifications or changes in the scope of
the project or fails to give prompt written authorization to proceed
with the project, or project is delayed by other causes outside of the
Engineer's control, the time of performance of Engineer's services and
compensation for services of the Engineer shall be adjusted
appropriately.
SECTION VI
METHOD OF PAYMENT TO THE ENGINEER
6.1 Payments for Services and Expenses of the Engineers are to be as set
forth below:
6.1.1 Principals and Employees of the Engineers
Compensation paid Engineers for services described in Sections I and
II and rendered by principals and employees assigned to the project
will be computed by multiplying Direct Personnel Expense times a
factor of 1.95 plus all reimbursable expenses, for an estimated total
compensation of $127,682.00 for the scope of Basic Services described
herein. Direct personnel expense shall mean the salaries and wages
paid to principals and employees of all classifications engaged
directly on the project, plus the cost of fringe benefits including,
but not limited to, social security, workers compensation, health and
retirement benefits, sick leave, vacation, and holiday pay applicable
thereto.
6.1.2 Expenses for items not specifically valued herein are to be reimbursed
to the Engineer at the actual cost thereof. Said expenses shall
include reproductiom; transportation and subsistence of priDcipals,
employees, and consultants when traveling iD connection with the
project,. consultant's fees~ toll telephone calls, telegrams, and
similar project-related items.
6.1.3 Payment for services rendered in connection with the Additional
Services cf Section III will be individually negotiated for each item
requested, and will be subsequently designated in the authorization to
proceed or the appropriate amendment to thie engineering agreement.
6.1.4 The Owner will make prompt monthly payments in response to Engineer's
monthly statements for all categories of services rendered under this
Agreement and for reimbursable expenses incurred.
SECTION VII
GENERAL CONSIDERATIONS
7.1 Estimates of Cost
7.1.1 Because the Engineers have no control over the cost of labor,
materials or equipment, or over the Contractor(s)' methods of
determining prices, or over competitive bidding or market conditions,
opinions of probable cost or construction cost provided for herein are
to be made on the basis of the EnGineer's experience and
qualifications and represent the Engineer's best judgment as a design
professional familiar with the construction industry, but the
Engineers cannot and do not guarantee that proposals, bids or the
construction cost will not vary from opinions of probable cost
prepared by the Engineer.
7.2 INSURANCE
7.2.1 The Engineer shall secure and maintain such insurance as will protect
him from claims under the Workmen's Compensation Act and from claims
for bodily injury, death or property damage which may arise from the
performance of services under this Agreement. The Engineer also
agrees to carry Professional Liability Insurance in an amount mutually
acceptable in writing to both parties, but not more than $1,0001000
and to provide a certificate regarding the same to the Owner. The
Engineer shall also require all of his professional consultants to
carry Professional Liability Insurance in an amount no less than
$250,000 unless otherwise approved by the OwDer in writing.
7.3 SEVERABILITY AND CONTRAVENTION
7.3.1 It is further understood and agreed by the parties hereto that if any
of these provisions shall contravene, or be invalid under the laws of
the particular state, county or jurisdiction where used, such
contravention or invalidity shall not invalidate the whole agreement,
but it shall be construed as if not containing the particular
provision or provisions held to be invalid in the same particular
state, county or jurisdiction and the rights and obligations of the
parties shall be construed and enforced accordingly.
7.4 REUSE OF DOCUMENTS
7.4.1 All documents including the drawings and specifications prepared or
furnished by Engineer (and Engineer's independent professional
associates and consultants) pursuant to this Agreement are instruments
of service in respect to the project and Engineer shall retain an
ownership and property interest therein whether or not the project is
completed. Owner may make and retain copies for information and
reference in connection with the use and occupancy of the Project by
Owner and others; however, such documents are not intended or
represented to be suitable for reuse or adaptation on any other
project. Any reuse without written verification or adaptation by
Engineer for the specific purpose intended will he at Owner's sole
risk and without liability or legal exposure to the Engineer; or to
Engineer's independent professional associates and consultants, and
Owner shall indemnify and hold harmless Engineer and Engineer's
independent professional associates and consultants from all claimsl
damages, losses and expenses including attorneys' fees arising out of
or resulting therefrom. Any such verification or adaptation will
entitle Engineer to further compensation at rates to be agreed upon by
Owner 8nd Engineer.
7.5 CONTROLLING LAW
7.5.1 This Agreement is to be governed by the law of the principal place of
business of Engineer.
7.6 SUCCESSORS AND ASSIGNS
7.6.1 Owner and Engineer each binds himself and his partnersr successors,
executors, administrators and assigns to the other party of this
Agreement and to the partners, successors, executors, administrators
and assigns to the other party of this Agreement and to the partners,
successors, executors, administrators and assigns of such other party,
in respect to all covenants of this Agreement; except as above,
neither Owner nor Engineer shall assign, sublet or transfer his
interest in this Agreement without the written consent of the other.
Nothing herein shall he construed as creating any personal liability
on the part of any officer or agent of any public body which may he a
party hereto, nor shall it be construed as giving any rights or
benefits hereunder to anyone other than Owner and Engineer.
7.7 PERSONNEL AND FACILITIES
7.7.1 The Engineer represents that he has, or will secure at his own
expense, all personnel required in performing the services under this
contract unless otherwise specified herein. All personnel engaged in
the work shall be fully qualified.
IN WITNESS WHEREOF, the parties have caused this Amendment to be executed as of
the day and year hereinabove set forth.
CONKLIN, PORTER & HOLMES - ENGINEERS, INC.
ATTEST:
~TE: /~/~/~/~
CITY OF SANFORD, FLORIDA
ATTEST:
S0602
AMEND 30
CITY OF SANFORD
AMENDMENT 30
PLAN OF STUDY
SUBCONSULTANTS P E T D S OPE
I. Aeration Tanks
Layout of New Tank 1 2 2
Contact Aeration Equip. Suppliers 2 8 4 4
Meet with Suppliers of Aeration Equip. 4 8 8 1
Develop Cost Estimates of
Alternate Equipment 1/2 8 8 4
Calculate Operating Costs of
Alternate Equipment 1/2 4 2
Do Life Cycle Cost Analyses
of Alternates I 4 2
Check Locations of Existing
Installations 2 6 4
Preliminary Electrical Layout
Costs & Subconsultant $3,500.00 2 4 2
Review with City 3 3
Call for References on Systems 3 8 $100
Review with City and Select Type
of System 2 2 1
Review Tank Details with City for
Improvements (review will include
gates,channels, gratings, walkways,
drains, depth, railings, and access) 1 4 8 1
SUBCONSULTANT P E T D S OPE
Aeration Tanks (cont'd)
Finalize Tank Configuration & Details 1 2 6 40
Review Structuralty & Modify as Required 4 8 16
Coordinate with Soils Engineer &
Incorporate Recommendations 4 2
Determine Influent Flow Splitting 1 4 4
Develop influent Piping Details 1/2 2 4 8
Develop Blower Piping Details 1/2 2 4 8
Size & Detail Aeration Piping
Design Aeration System & Details 1/2 2 4 8
Design Effluent Piping System & Details 1/2 2 4 8
Design Blower Addition & Details 1 2 4 6
Review with City & Make Changes As Needed 2 4 8 8 1
Depict New Aeration System in Old Tank 4 8 20 40 2
Electrical Work, MCC, Lighting, etc. $7,500.00 2 4 4 2
$11,000.00 36.5 102 102 154 32 $100
II. Sludqe Thickener System
Review Regulations and Applicability 2 2 1
Decide on Criteria and Confirm with
City and DER 1 2 1
Review Alternate Systems to Meet Criteria 1/2 3
Meet with City to Discuss Alternate Systems I 1 1
Visit Systems as Needed with City personnel 16 16 1 $300
Select Type of System 1 1
Size Tankage and/or Equipment 1 4 4
Detail Equipment 1/2 4 16 24
Access, Walkways, etc. 1 2 4
Influent Piping & Valving 1 2 4 8
Holding Tank Size & Configuration 1 4 4 I6
SUBCONSULTANT P E T D S OPE
Sludge Thickeners (cont'd)
Mixing Equipment 1/2 4 4 8
Effluent Piping 1/2 2 4 4
Metering 1/2 1 2 4
Valving 1/2 1 1 2
Pumping to Digesters 1/2 4 4 16
Structural Tank Design t6 12 8 36
Coordination with Soils Consultant 1 2 2 1
Electrical Lighting & Power $4,500.00
$4,500.00 44.5 66 55 122 5 $300
III. Clarifier Renovation
Demolition of "Primaries"
Show Tank with Notes for Demolition,
capping pipes, etc. 2 2 18 1
Show Grades of Restored Area 2 2 8 1
Depict Secondary Clarifier
Renovation on Drawings 2 2 18 1
6 6 44 3
SUBCONSULTANT P E T D S OPE
IV. New Laboratory Building &
Remodeling Old Lab BldG.
Structural 18 24 24 60
Coordination with Architect
and Owner 16 16 10 4 2
Architectural $20,000.00
Electrical )
)
Heating & Ventilation) $ 5,000.00
)
Air Conditioning )
Computer equipment linked to
plant $ 1,000.O0
Coordinate w/Architect &
City on Lab. furniture,
equipment, etc. 4 4 20 12 4 $100
Choose appropriate placement
of computer equipment and
controls for operational
personnel 2 6 6 2
$26,000.00 40 50 60 78 6 $100
V. Cblorination System
Study existing chlorination
equipment for adequacy 2 a 4 2
Chlorination System (cont'd)
SUBCONSULTANT P E T D S OPE
Plan and specify new chlorination
equipment for high level
disinfection from the standpoint of
efficiency & effectiveness 1 16 12 24 8
Consider flow proportional feeding 1 4 4 -
Consider compound loop
feed dependent on
measured residuals & flows 1 4 4 -
5 28 24 24 10
VI. New Storage Building
Determine location & orientation
for new building & coordinate
with City 1/2 2 2 - -
Coordinate soils work 1 2
Floor plans & elevations of
building, types, locations,
& sizes of doors & windows 3 8 12 24
Structural Calcs & Details 8 12 10 40
Lighting & Ventilation $ 1,000.00 4 6 6 24
Site Work 2 8 16 24
$ t,000.00 18.5 38 46 54 112
SUBCONSULTANT P E T D S OPE
VII. Instrumentation & Control $ 5,000.00
Air Meter to New Tank 1 4 4 8
Air Meter to DAF 1 4 4 8
Air Meter to Holding Tank 2 2 4
Sludge Flow Meter 2 2 4
To Thickener 1 2 2 4
From Thickener 1 2 2 4
From Holding Tank _3.1 2 2 4
$ 5,000.00 5 18 18 36 -
VIII. Opinion of Probable Construction
Cost ._3_1 8 24 8 2
1 8 24 8 2
IX. Proiect Review
Review project including site
inspections, project meetings,
preliminary selection of appropriate
alternate aeration & sludge thickening
systems, chlorination equipment, lab
equipment & computer system;
check prints, copies, prints for
permits, etc. 16 28 28 - 2 $1,800