HomeMy WebLinkAbout1987-08-10 87-293 ORDER8]-293
Introduced by Councilor Frankel, August 10, 1987
CITY OF BANGOR
QITLU @rbtrd Autho i mg Amandmenc c I a Enet rest with Woodard a cn .11 int. -
Infiltration / Inflow Program and Secondary Treatment Proceed Selection
...... _..... .. .............. _ I- . ............... _..
BY the City Coundif of the City of11anw..
ORDERED,
THAT, WHEREAS, the City Council, by Council Order No. 86-368 passed
September 18, 1986 authorized the City Manager to enter into a Contract with
Woodard 6 Curran, Inc. for consulting services pertaining to the development
of secondary sewage treatment facilitfea: and
WHEREAS, the Tasks contained under the original Contract have been sub-
stantially completed, and It is now necessary to proceed with additional
monitoring and upgrading of the existing City sewerage system, and to begin
the selection process for the type of secondary treatment to be constructed:
and
WHEREAS, it is considered to be in the best interests Of the City to
continue to contract with Woodard 6 Curran to ensure
efficient continuity
ss
of the selection process, and to assure that the strict deadlines for the
completion of the process are meq
NOW, THEREFORE, Be It
OFFERED. THAT the City Manager be and hereby is authorized to enter into
n Amendment to said Contract to add Task 5 - Assist with the Implementation of
the Wastewater Treatment Program and Ne ColleceloA System Rebabilltation progra ,
at an estimated cost of $60,)90.00, to be paid for out of the current Swat
Department Operating Budget, a copy of said Amendment being on file in the
Office of the City Clerk.
STATEMENT OF PACT:
The aboveAmendment does not include pilot testing which may be requited
during the coming winter, nor does It include the eventual completion of the
Facilities Plan, which will be the subject of future contract amendments.
87-293
O ROIR
IN CITY COUCIL
August 10, 1987
Title,
a
Referred to Finance Committee -
Consider next meetio
Authoriziv Am d t to Contract
...d.. en men ................
d%9
O'er
Y CLERK
with Woodard 6 Curren, Inc.
AAs FLS
IrtiInflow Program and Secondary
�� O
Treatment Process Selection
Introduced andfiledby
.........
Councilman
In City Council August 24,1987
Passed
.sem
city Cler
P
87-293
AGREEMENT BETWEEN
CITY OF BANWR
AND
WOODARD b CURRAN INC.
ATTACHMENT 4
SCOPE OF SERVICES - TASK 5
PHASE I
Task 5 - Assist with the Implementation of the Wastewater Treatment
Program and the Collection System Rehabilitation Program
Description
This Attachment 4 is divided into two parts;
1. Technical Assessment and Work Plan (dated April 1987)
2. Task Breakdown and Cost Estimate (dated May 1987,
revised July 1987))
This Attachment 4 details the scope of work and cost estimate for
the Company to assist the City with implementing the wastewater
Treatment Program and the Collection System Rehabilitation Program
which jointly will eventually result in a comprehensive Facilities
Plan Report. The Work Plan covers a scope of work from the present
through the completion of the Facilities Planning Process
(tentatively -scheduled for mid 1989)
The Task Breakdown and Cost Estimate for this Attachment 4
encompasses only the initial stage of Facilities Planning Process;
through the completion of the first year I/I program in January 1988
and the completion of the preliminary. Secondary Wastewater Treatment
Process Selection in mid 1987. The Company does not believe that a
accurate budget estimate can be made for the second year I/I program
until the results of the first year program are received and
analyzed. The Company's involvement in the second year program will
be closely related to the success of the first year program.
The Company has not included an estimate for the work associated
with the final Secondary Wastewater Treatment Process Selection, the
Piloting Studies, The Facility Sizing Study or the Evaluation of the
Existing Facility. Each of these items are included in the attached
Work Plan and should be undertaken by the City as part of the
Facilities Planning Process.
As well, the Company does not believe that an accurate estimate can
be made for the work associated with the review
w of the financial and
development options and preparation of the Facilities Plan. The
cope for this work will not be determined until the secondary
treatment process selection is made in late 1988. -
For the purposes of this Attachment 4 no attempt has been made to
estimate Costs for the entire Facilities Planning Process.
A summary of the estimates for engineering costs for the major work
item categories is as follows: ..
I. Infiltration/Inflow - CSO Program $ 23,390
Ii. Sewer SystemEvaluation Survey -
III. Inflow. Reduction Project ($2.5 million) -
IV. Annual Collection System Rehab. 1$1.0 million) -
V. Second Inflow Reduction Project (Grant -funded) -
VI. Process Selection (preliminary selection only) 37,400
VII. Facility Sizing
VIII. Evaluation of Existing PAF
IX. Financial/Development Options Review -
X. Preparation of Facilities Plan Report -
Total Task 5 Cost Estimate 8 60,790
Work items II, III & PV are not expected to include the Company's
involvement at this time.
Work items V, VII, VIII, IX and X cannot be defined at this time.
The Final Process Selection and Pilot Study portion of Work item VI
has not been defined at this time.
Work items I and VI require considerable City Staff involvement to
be successfully completed as described in the attached Task
Breakdown and Cost Estimate (dated May 1987; revised July 1987).
0522A - 2 -
TECHNICAL ASSESSMENT
AND
WORK PLAN
ATTACHMENT'4
APRIL 1987
Prepared by:
Woodard 6 Curran Inc.
Consulting Engineers.
al Hutchins Drive
Portland, ME 09102
0522A - 3
The City of Bangor is in the process of negotiating a consent
agreement with the PEP and the EPA. An integral part of that
agreement is the schedule of compliance. The compliance schedule
will detail the timeframe by which the City will achieve secondary
wastewater treatment in the coming years. A major portion of the
compliance plan and schedule is the Facilities - planning process.
The Facilities Plan Report will address not only secondary
wastewater treatment but the need forsewer system rehabilitation
and infiltration/inflow removal. Both rehabilitation of the
collection system and the removal of infiltration/inflow will reduce
the size and cost and improve the performance of the new facility.
At this point it appears that approximately two years will be
scheduled to complete the Facilities planning process. The issues
of secondary wastewater treatment process selection, facility
sizing, funding and development must be addressed. As well, a
parallel effort towards the study of the collection system and
implementing rehabilitation and replacement construction projects
must be undertaken. To accurately and completely address these
issues will require a massive increase in both in-house and outside
engineering study, design and construction efforts on the city's
behalf.
The following work Plan outlines the necessary effort to complete a
comprehensive facilities plan within two years as mandated by the
present compliance schedule agreement. The first objective is to
address all the issues involved, ranging from sewer system
rehabilitation needs to secondary wastewater treatment process
selection. The second objective is to ensure that the City's
resources are most efficiently spent towards secondary treatment,
collection, system rehabilitation and upgrade, and other
environmental protection needs.
0522A - 4 -
WORK PLAN
Based on the preceeding Technical Assessment for this projecte the
following is an outline of the Work Plan to prepare a comprehensive
Facilities Plan for the City's wastewater collection and treatment
system.
I. Infiltration/Inflow - Combined Sewer Overflow Monitoring
Program
ii. Sewer System Evaluation Survey
III. Initial Inflow Reduction Construction Project ($2.5 million)
IV. Annual Collection System Structural Rehabilitation (§1.0
million)
V. Secondary Wastewater Treatment Process Selection
VI. Secondary Wastewater Treatment Facility Sizing
VII. Evaluation of Existing Pollution Abatement Facility
VIII. Financial/Development Options Review
IK. Preparation of Facilities Plan Report
A description of each of the above items of the Work Plan follows.
0522A - 5 -
A detailed description of the two-year 1/I CSO Monitoring
Program was given in Appendix 6 of the Options Report dated
January 1987. The City is currently implementing the first
year of the field program. The following work items remain to
complete the program.
A. Data Reduction:
1. Update of sewer system drawings.
2. Graphs, plots, spreadsheets, etc. of collected data.
3. Summary report of field program.
B. Data Evaluation:
1. Graphs of precipitation vs. inflow, infiltration, CSO
discharge.
2. Graphs of groundwater elevation vs. infiltration.
3. Quantify domestic wastewater flow rates and diurnal
patterns.
4. Quantify commercial/industrial flow rates and peak
flow rates.
5. evaluate sample analysis data.
6. Establish characteristics of wastewater, CSO
discharges, infiltration and inflow.
C. Feasibility Studies:
1. Identify problem subsystems.
2. Identify high priority inflow reduction projects for
1987 and 1988.
3. Identify high priority collector sewer rehabilitation
projects for 1987 and 1988.
4. Establish cost-effectiveness of high priority projects.
5. Select high priority projects within budget
constraints for implementation.
D. Water Qualit Sa ling/CSo inspections
1. Perform daily CSO inspections during wet weather
period.
2. Perform in -stream sampling as required by RIDES permit
to determine existence of water quality impacts In
Eenduskeag Stream and Penobscot River.
3. Evaluate sample analysis results for water quality
impact and public health hazards.
0522A - 6
E. Re-evaluation of Priority Status:
1. Document existing water quality impacts or public
health hazards due to CSO discharges.
2. Perform additional sampling and analysis as necessary
for presentation to regulatory officials.
3. Update appropirate subsystem feasibility studies to
form a preliminary remedial action plan for the
elimination or treatment of CSO discharges to the
Renduskea9 Stream or Penobscot River.
4. Present remedial action plan to regulatory officials
as grant funding request..
P. 1988 Monitoring Program:
1. Select "problem" subsystems from 1987 program results.
2. Concentrate monitoring, and sampling efforts in
"problem" subsystems.
3. Analyze data for relationships between precipitation,
inflow, infiltration and groundwater table elevations.
4. Inspect CSO's for frequency of discharge and flow rate.
5. Model existing interceptor, collection and transfer
system by computer to understand and optimize
performance.
6. Identify source control projects to cost effectively
reduce/eliminate infiltration, inflow and CSO
discharges.
7. Prepare Sewer System Rehabilitation Master Plan Report
for I/I Reduction and CSO Elimination. MIA report
will form the basis of the ongoing inflow reduction
projects and the sewer system structural
rehabilitation projects.
G. Urban Hydrology Study:
1. Complete mapping of City storm drain system.
2. Perform aerial photography of entire City. Generate
updated topographical maps of entire City.
3. Analyze individual "problem" subsystems for inflow
reduction/diversion schemes.
4. Survey City for roof drain and foundation drain
connections to Sewer system. Notify owners of need to
remove improper connections.
5. Develop cost effective inflow control strategies for
individual subsystems.
6. Input strategies to the Master Plan Report.
0522A
H. 1989 Monitoring Program
1. Continue the ongoing program in the
Spring
of 1989.
2. Identify more cost-effective
inflow
reduction
construction projects.
3. Measure accomplished reduction in
infiltration/inflow
through 1987 and 1988 projects.
4. Update the Sewer System Rehabilitation
Master Plan
Report.
5. Update Facilities Plan Report.
0522A - 8 -
II. SEWER SYSTEM EVALUATION SURVEY (SEES)
A complete survey of the problem areas in the City's sewer
system, as identified in the first year of the I/I study, will
be completed over the next 2 years. The objective is to
inspect the system and identifycost-effective collection
system rehabilitation work such as manhole and sewer repair by
lining, grouting or replacement that can be accomplished by
the City crews or outside contractors within the $1.0 million
collection system rehabilitation annual budget.
A. Manhole Inspection:
1. Complete manhole log sheets for all manholes within
the "problem" subsystems.
2. Identify •problem' manholes by. type of deficiency;
prioritize deficiency in the field.
3. Create manhole numbering system throughout City.
B. T.V. Inspections:
1. Use T.V. camera to inspectsewer
linea identified
during manhole inspection or thel/I study program.
2. View tapes and identify locations for repair, cleaning
or rehabilitation.
C. Data Analysis and Evaluation:
1. Update sewer system maps based on SEES data.
2. Identify manholes requiring rehabilitation or
replacement.
3. Identify sewer lines requiring rehabilitation,
cleaning or replacement.
4. Prioritize projects based on field data and
cost-effectiveness of repair.
5. Input recommendations to Sewer System Rehabilitation
Master Plan Report.
0522A - 9 -
III. INITIAL INFLOW REDUCTION CONSTRUCTION PROSECT ($2.5 Million
it is anticipated that aumber of cost-effective
opportunities for inflow reduction construction projects will
be identified after the first year of the 1/I - CBO Monitoring
Program. $2.5 million has been budgeted by the city to be
spent over the next two years.
A. Phase I (Summer of 198]):
The projects to be completed this season include those
which clearly represent situtions which are cost-effective
removal options and include the following projects:
• Meadowbrook Bog Diversion
o Woodlawn Trunk Replacement
o Hancock Street Separation
o Penjajawoc Interceptor Extension
1. Geotechnical field work and analysis.
2. Topographic and utility survey.
3. Interceptor and collector sewer design.
4. Preparation of bid documents.
5. Contract bidding and Contractor selection.
6. Construction administration and resident inspection.
B. Phase II (Summer.of 1988 and 1989):
The projects to be completed in 1988-1989 will result from
engineering study completed in 1987-1988. Subsystems to
be considered include:
Barkersville (DOT Pond Diversion)
0 Dow Trunk
0 Industrial Trunk
0 Mill Street
0Blanchard Street
o Arctic Brook
0 Capehart
o woodlawn (RMHI)
1. Geotechnical field work and analysis.
2. Topographic and utility survey.
3. Interceptor and collector sewer design.
4. Preparation of bid documents.
5. Contract bidding and Contractor selection.
6. Construction administration and resident inspection.
0522A - 10 -
IV. ANNUAL COLLECTION SYSTEM REHABILITATION ($1.0 Million)
A City is in the process of establishing a $1.0 million annual
budget for ongoing collection system rehabilitation and
replacement to commence as of 1989. $1.0 million annually
will allow the City to replace, rehabilitate and separate the
408of the sewer system that will exceed 75 years of age in
the next 20 years.
A. Review of Master Plan and SEES:
1. Review Master Plan annually for cost-effective
collection system projects to be undertaken.
2. Review the results of the ongoing SSSS for
cost-effective M.H. rehabilitation work to be
undertaken.
B. Replacement Projects:
Geotechnical field work and study.
Topographic and utility survey.
Collection sewer design.
Preparation of bid documents (if necessary).
Contract bidding and Contractor selection (if
necessary)
Construction administration and resident inspection.
C. Rehabilitation Projects:
1. Perform sewer line cleaning.
2. Contract with Sewer lining service.
3. Perform pressure grouting of sewer linea.
4. Perform grouting and sealing of manholes.
5. Contract administration and resident inspection.
0522A - 11 -
V. SECOND INFLOW REDUCTION CONSTRUCTION PROSECT (Grant Funded)
Upon demonstration that adverse water quality impacts or a
public health hazard exists inthe Eenduskeag Stream due to
the CSO discharges, a remedial action plan will be proposed to
regulatory agencies. The remedial action plan will propose to
regulatory agencies. The remedial action plan will propose to
treat or eliminate all applicable CSO discharges. As well,
application would be made for additional priority points to
increase the City's changes for grant funding.
A. Review of Earlier Feasibility Studies:
1. Review of earlier feasibility studies for
applicability to elimintion of CSO discharges along
the Renduskeag Stream.
2. Update, as necessary, earlier feasibility studies to
reflect concerns along the Renduskeag.
3. investigate impacts of inflow reduction/diversion an
urban hydrology in subject subsystems.
B. Reevaluation of Priority List Standing: Performed as part
of Item I.E.
C. Decision Point:
1. Pursue remedial action if grant funding is indicated.
Proceed with D. below.
OR
2. Pursue remedial action as part of annual collection
system rehabilitation if grant funding is not
indicated.
OR
3, Remedial Action Plan:
Do not pursue remedial action until regulatory policy
is established and priority given to CSO discharge
elimination.
D. Remedial Action Plan:
1. Geotechnical and survey field work.
2. Design.
3. Preparation of bid document (if necessary).
6. Contract bidding and Contractor selection (if
necessary).
5. Construction administration and inspection.
0522A - 12 -
VI. SECONDARY WASTEWATER TREATMENT - PROCESS SELECTION
A. Estimate Facility Size Range:
1. Review existing flow data and past report data.
2. Incorporate results of first year of I/I study program.
B. Prepare Vendor Request for Information:
1. Describe design criteria, project schedule, piloting
needs, etc.
2. Identify form of information requirements,mrnimum
requirements for proposals terms of costdata,
references, installation lista etc.
3. Hold a pre -submittal meeting to discuss RFI, respond
to questions, clarify responsibilities, etc.
4. Receive and review information. Perform comparative
analysis Of various treatment technologies and their
life cycle, costs, reliability, etc.
5. Narrow prospective treatment processes t0 three for
review with City staff.
C. Detailed St dV of Three Candidate Treatment Proteases:
1. Research actual Performance data from operating
installations.
2. Perform site visits, as necessary, with City staff.
3. Develop preliminary cost estimates for construction,
labor, utilities, chemicals and solids processing and
disposal.
4. Prepare comparative matrix of advantages and
disadvantages and prioritise feasible options.
S. Final selection of processes for piloting study.
D. Piloting Studies:
1. Prepare conceptual design, operating procedures and
data collection procedures for pilot plants. Review
with City staff.
2. Design pilot plant for conventional and nonconven-
tional treatment processes. Where available* contract
with equipment manufacturers, vendors, etc., to supply
necessary piloting apparatus.
3. Contract for construction of pilot plants.
4. Staff pilot plants with City personnel.
5. Perform pilot plant studies during winter -Spring 1988.
6. Collect data and reduce into spreadsheet format,
graphs, charts, etc.
y. Analyze resultant data for ability to meet effluent
quality criteria as conventional secondary treatment
or treatment equivalent to secondary treatment.
0522A - 13 -
E. Finalize Comparative Analysis:
1. Use piloting data and case history information to
revise life cycle cost estimates and comparative
matrix of advantages and disadvantages.
2. Final choice of most cost-effective secondary
wastewater treatment processes.
F. Establish Effluent Quality Limits:
1. If preferred alternative requires treatment equivalent
to secondary treatment status designation .begin
discussions with state and EPA officials to establish
leas stringent permit limits.
2. Document case histories, performance data from actual
installations and pilot plant results for submittal to
regulatory officials.
3. Finalise effluent quality limits.
0522A - 14, -
VII. SECONDARY WASTEWATER TREATMENT FACILITY SIZING
A.
User Study:
1,
Review Assessor's Office data.
2.
Review other City records (water department, etc.)
3
Establish make-up of user base and division of flow
between residential, commercial, industrial, and
governmental.
B.
Estimate Service Populations:
1.
Analyze existing service area development densities.
2.
Analyze City zoning and building restrictions.
3.
Assess future service are development potential.
4.
Assess City policies on future expansion.
5.
Review information on current population projections
from City, regional planning and state agencies.
C.
Proiect
Future Populations and Flow:
1.
Perform population projections.
2.
Project domestic flow from past records for Bangor
user categories.
3.
Project future industrial/commercial/governmental
flows by using specific zoning and planning
Information.
4.
Discuss City philosophy toward allowances for growth
with City staff, City Manager, and City Council.
5.
Input flaw information generated from two-year I/I -
CSO Monitoring Program.
0522A - 15 -
VIII. EVALUATION OF EXISTING POLLUTION ABATEMENT FACILITY
A.
Review Plant Capacity:
1.
Review unit process hydraulic capacities.
2.
Revgiew unit process physical and chemical processing
capacities.
3.
Review residuals handling and disposal capacity.
B.
Review Plant Condition:
1.
Review equipment and structural condition of all unit
processes.
2.
Review condition of electrical and instrumentation
components.
C.
Review Plant Layout and Site Constraints:
1.
Review site utilization and layout relative to future
expansion.
2.
Perform initial alternative siting study to ensure
that nearby feasible sites do not exist.
D.
Review Plant Performance Data:
1.
Review facility operating data for additions or
modifications to existing preliminary, primary or
post-treatment processes necessary for secondary
treatment facility.
2.
Review residuals handling and disposal for future
needs.
3.
Review operational data for operation and maintenance
modifications to optimize performance of existing
processes.
0522A - 16 -
I%. EVALUATION OF FINANCIAL/DEVELOPMENT OPTIONS
A. Financial Evaluation:
1.
Revise Financial Capability Analysis based on user
base evaluation and selected facility sive, process
and development option.
2.
Review rate structure and recommend new rates to
.finance upfront costs of study, design, sewer
rehabilitation, etc.
3.
Inventory known funding sources.
B. Development Options Review: -
1.
Fully describe various options including advantages
and diadvantges to City staff, City Manager and City
Council.
2.
Evaluate proposals form various alternative format.
developers.
3.
Recommend one or two approaches for final review with
City staff and for Bidding by designers/developers.
4.
Preparation of RFPfor distribution to designers/.
developers. RFP to describe Facilities Plan and
development formats available for bidding.
0522A - 17 -
N. PREPARATION OF FACILITIES PLAN REPORT
The Facilities Plan Report will culminate the two-year study
process and document thev arious studies, analyses and
comparisons used to develop acomprehensive collection system
and treatment facility plan.
0522A 18 -
TASK BREAKDOWN AND COST ESTIMATE
ATTACHMENT 4
MAY 1987
REVISED JULY 1987
Prepared by:
Woodard 6 Curran Inc.
Consulting Engineers
41 Hutchins Drive
Portland, ME 04102
0522A - 19 -
I. INFILTRATION/INFLOW - COMBINED OVERFLOW MONITORING PROGRAM
Woodard s Curran Inc. will provide general consulting
services on the I/3 - CSO program from the present through
the set-up of the 1988 field program in January 1988.
Services will be on an as -needed basis to assist City staff
during the data reduction, dataevaluation, feasibility
studies, water quality sampling, water quality impact
assessment, 1988 field program set-up and urban hydrology
stages. In general, the City staff will perform the majority
of the work described in the Work Plan. Woodard c Curran's
role will be as technical advisor, lending input and
expertise as necessary to ensure the program's success.
For Tasks A, B,C and o the City staff will be responsible for
preparation of all drawing updates; graphs, plots and
spreadsheets of collected data; quantification of flow rates;
establishing wastewater characteristics; preparing
feasibility studies; and, performing all field work. Woodard
S Curran Inc. will serve as technical advisor and overall
anger to the City staff's effort and will be available for
meetings, phone discussions and report review as needed
within the budget to complete these work items.
For Task E no scope of work can be established until the
in -stream sampling results are received. No work is budgeted
as part of this Attachmemt 9.
For Task F, Woodard 6 Curran Inc. will assist in the get-up
of the 198E I/I field program. This will include the
determination of which subsystems will be monitored and the
location of the monitoring equipment. The scope of work for
the full 1988 Monitoring Program will not be determined until
late 1981. At that time a budget estimate and scope of work
for Woodard L Curran's involvement in the 1988 Monitoring
Program, including field work, data reduction, data
evaluation, Master Plan Report preparation, etc, will be
presented.
For Task G; the City staff will be responsible for all
mapping, aerial photography, subsystem analysis, storm drain
survey, and inflow control strategy development. Woodard 6
Curran Inc. will provide technical assistance and management
overview and be available for meetings, phone discussions and
data and report review servicesasnecessary within the
budget to complete this item.
A preliminary budget estimate for manpower is attached. As
the scope is better defined, through the City staff's
efforts, the need to revise the budget estimate will be
addressed.
A preliminary estimate for this task is $23,390.
0522A - 20 -
EDDG@T E IMTE
MfiltratiWn flow - = mmitorirg Program
MAN DAYS
Principal
Project Egineer
ineer
Clerical
A. rata a uction -
2
2
1
B. Data Evaluation 1
5
2
1
C. Pe'vsibility Studies 2
5
2
1
D. Water Qua1. SWPlin9 1
5
-
1
E. Reevaluation of
Priority Status -
-
-
-
P. Setup 1988 Program 1
2
-
-
G. Urban Eydrology 2
5
5
1 '
Total Mn Says 7
,24.
11 -
5
Coat $5,880
$11,520
$3,870
$10120
TUtal Coat = $22,390
Direct EBpensea = $. 1,000
$23,390
II. SEWER SYSTEM EVALUATION SURVEY (SEES)
Woodard s Curran Inc. direct involvement is not anticipated
at this time. City staff members are fully qualified to
undertake a comprehensive SSES program. Woodard a Curran
Inc. is available to provide assistance in Lerma of field
personnel or in a tactical advisory role should the City deem
it necessary.
0522A - 21 -
III. INITIAL INFLOW_ REDUCTION CONSTRUCTION PROJECT ($2.5 MILLION)
Woodard S Curran Inc. direct involvement in this project is
not anticipated at this time. Much of the field and design
work associated with this task can be performed by City
staffers if adequate staff is made available to the
Engineering Department. In fact, in the case of the
construction work to be perforemd this year the field and
design work is nearly complete. Woodard 6 Curran Inc.
remains available to assist the City in any field survey,
design or construction administration work associated with
the inflow construction projects of. 1987 and 1988.
0522A - 22 -
IV. ANNUAL COLLECTION SYSTEM REHABILITATION ($1.0 MILLION)
Woodard a Curran Inc. direct involvement in this task is not
necessary. City staffers can perform the necessary reviews
of Master Plan and SSSS reports to select those
rehabilitation efforts most cost effective within the $1.0
million annual budget. As well, this program likely will not
be initiated until late 1988, hence, accurate budgeting at
this time is not possible.
0522A -.23 -
V. SECOND INFLOW REDUCTION CONSTRUCTION PROJECT (GRANT FUNDED)
The performance of this task largely hinges on the receipt of
grant -funding based on a demonstrated water quality impact in
the Eenduskeag Stream due to the existing C50 discharges.
Nater quality impact during CSO discharges will be assessed
after sampling performed as part of the I/I-CSO program. As
such no budget estimate is presented as no information has
been acquired as to the magnitude of the water quality impact
in the Kenduskeag. A great water quality impact will warrant
a larger effort toward pursuit of grant funding while a
leaser impact will not. Woodard s Curran Inc. will reassess
the performance of this task after water quality sampling is
completed this summer.
0522A - 24 -
OI. SECONDARY WASTEWATER TREATMENT - PROCESS SELECTION
Woodard s Curran Inc. involvement in this task will be
substantial. This is the area of study for which we were
first retained in 1986. The scope of work has been revised
s described in the Work Plan to include a full-scale pilot
plant study. Key elements of this program include:
estimation of the facility srpreparation of the Vendor
Request for Information; performance of an initial
comparative analysis of treatment options; undertaking a
detailed study of three candidate treatment options;
research, design, and oversight of the City staff - operated
trickling filter pilot plant and finalization of the
comparative analysis.
The major piece of this program is the research, design, and
oversight of the trickling filter pilot plant. Other
piloting studies may be undertaken but, it is not known at
this time which processes or how many processes may be
piloted this witner. Hence, coats for the trickling filter
pilot program only are presented.
A very stringent and highly defensible pilot program must be
performed to assist in pursuing treatment equivalent to
secondary treatment status. Attaining this status, and
obtaining the accompanying less stringent effluent quality
limits will save the City millions of dollars in capital and
O&M costs over the design life of the facility.
This tasks duration is expected to last until mid to late
1988.
Woodard a Curran's estimated fee for the preliminary
selection of a short list of candidate treatment processes
and research for the Trickling Filter pilot plan[ is
$37,400. At the City's request and after a scope of work is
defined an estimated fee to do detailed research on the short
list ofprocessesand to design and Oversee the pilot program _
can be prepared.
0522A - - 23 -
E. PilotiM1 StOiies
Research
BOo(£f ESTIEA3E
2 _
ooM weather T.F. operatim -
2 -
Seoordaw wastewater Tteatment - Process Selection
2 -
cold influent operatim -
2
MB m:YS
2 2
Project
Project
Priwip 1 Engineer I
0aineer iI
Clerical
A.
Estimate Facility Size
1 2
-
-
B.
Vendor M
Preparation
2 5
1
t eeting
2 2
1
B2Jiew MIS
5 5
1
9 12
3
C.
Crn ratiw snalysis
of all optima
Identify -
1 1 -
1
-
Fesma
1 2
5
1
Cost Estimates
1 2
5
1
Cm{a rison
1 1
1
1
4 6
12
3
O.
Detailed Study
(3 options)
No estimate at this
time
Fesearch
Site Visits
Cost Estimates
-
Co ison
E. PilotiM1 StOiies
Research
remnt research [eView
2 _
ooM weather T.F. operatim -
2 -
media options -
2 -
cold influent operatim -
2
donmentation of research 2
2 2
Pralect P O]ect
Prirc�i.pal Eigineer I EMeer II
Process Oesi9 Mo estimate at this time
Flan rate selection
Primary effluent
collection
Filter design
Nadia selection
dfstritutim design
collector design
recycle selection
secondary clarifier
Effluent flan measuranaat
Dmareatatim of design
OperatiN Procedures
Select lmraneters to
analyze
Savplir lacatims
Determine operation
c itions
Wality control program
Prep iN operatial Pra'
cedures dm t
Pilot Plant Construction
assist v/eguip t w -
Q isitim
U ersee mnstrmtfm
Docaoent crostmctlon
Pilot Plant Start -Up
Operator trainiM
Oversee acclimation
Pilot Plant tperation
(8 mmths)
Mmthly site visits
data analysis
Fiml PelArt Prep
P. F1 CAIQHrative Analysis
Pevise earlier analysis
Select Prmees
dotal Man Days:
Cast:
Mo estimate at this time
Mo estivate at this time
PO estimate at this time
Po estivate at Nis time
MO estimate at Nis time
Pb estivate at this time
16 20
$13,440 $ 9,600
Clerical
22 8
$10,560 $1.800
1bte1 Labor Cos[: $ 35,400
Direct Expenses: $000
Hb l Cost: $ 37,400
VII. SECONDARY WASTEWATER TREATMENT FACILITY SIZING
The scope of work for this item has not been defined. No
estimate is available at this time.
0522A - 26 -
VIII. EVALUATION OF EXISTING POLLUTION ABATEMENT FACILITY
The scope of work for this item has not been defined. No
estimate is available at this time.
0522A 27 -
IN. FINANCIAL/DEWWPMENT OPTIONS REVIEW
No work on this item is scheduled for the first year of the
Facilities Planning Process.
0522A - 28 -
X. PREPARATION OF FACILITIES PLAN REPORT
No work on this item is scheduled for the first year of the
,Facilities Planning Process.
0522A - 29 -