HomeMy WebLinkAboutContracts & Agreements_242-2022SECOND AMENDMENT TO AGREEMENT TO PERFORM PROFESSIONAL SERVICES
This second amendment ("Second Amendment") to the agreement for the provision of
professional engineering services to complete wastewater treatment plant design dated March 5,
2019 ("Agreement"), by and between the City of Redlands, a municipal corporation ("City"),
and Parsons Water & Infrastructure Inc., ("Consultant"), is made and entered into this 15tt' day
of November 2022.
RECITALS
WHEREAS, it is the desire of the City and Consultant to amend Article 2.1 of their
existing Agreement, specifically described in Exhibit "A," "Scope of Services" to include
"Amended Scope of Services," which is attached hereto by reference, and
WHEREAS, it is the desire of the City and Consultant to amend Article 4.1 of their
existing Agreement, specifically described in Exhibit "B," "Project Schedule" to include
"Amended Project Schedule," which is attached hereto by reference, and
WHEREAS, it is the desire of the City and Consultant to amend Article 4.2 of their
existing Agreement to extend contract until December 31, 2023, and
WHEREAS, it is the desire of the City and Consultant to amend Article 5.1 of their
existing Agreement to increase Consultant's present total compensation of six million three
hundred seventy four thousand eight hundred sixty eight dollars ($6,374,868) to the amount of
six million seven hundred seventy nine thousand three hundred ninety six dollars ($6,779,396).
NOW, THEREFORE, City and Consultant agree as follows:
AGREEMENT
Section 1. The scope of work performed by Consultant pursuant to Exhibit "A" of the
Agreement, entitled "Scope of Services," is hereby amended by the attached to include the work
that is identified in Exhibit "A," "Amended Scope of Services," which is attached hereto and
incorporated herein by this reference.
Section 2. The project schedule set forth in Exhibit "B" of the Agreement, entitled
"Project Schedule," is hereby amended by the attached to extend contract duration indicated in
Exhibit "B," "Amended Project Schedule," which is attached hereto and incorporated herein by
this reference.
Section 3. Subsection 4.2 of Article 4 of the Agreement, titled "Performance of
Services" is hereby amended to read as follows:
"4.2 The term of this Agreement shall commence on its Effective Date and shall terminate
on December 31, 2023, unless terminated earlier as provided herein."
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Section 4. Subsection 5.1 of Article 5 of the Agreement, titled "Payments to Consultant,"
is hereby amended to read as follows:
"5.1 The total compensation for Consultant's performance of the Services shall not
exceed the amount of six million seven hundred seventy-nine thousand three hundred ninety-six
dollars ($6,779,396). City shall pay Consultant on a time and materials basis up to the not to
exceed amount in accordance with Exhibit "C" entitled "Amended Cost Proposal," which is
attached hereto and incorporated herein by this reference."
Section 5. All other provisions of the Agreement shall remain unchanged by this Second
Amendment and in effect.
IN WITNESS WHEREOF, the parties have executed this Second Amendment, to be
effective as of November 15, 2022.
CITY OF REDLANDS
B
Paul T. Barich, Mayor
ATTEST:
mie Donaldson, City Clerk
PARSONS WATER & INFRASTRUCTURE INC.
By:
Satish Kamath, Vice President
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EXHIBIT "A"
AMENDED SCOPE OF SERVICE
The City of Redlands (City) owns and operates a WWTP with a rated treatment capacity of 9,5
mgd annual average flow. Approximately 6 mgd of that capacity is in an MBR system; the
remaining 3.5 mgd is in a
conventional activated sludge
process (ASP). Of the current 5.5
mgd annual average flow
received at the WWTP, about 3,5
mgd is treated through the MBR
system, and the rest is treated
through ASP. Considering the
0.8% percent per year population
growth rate per the City of
Redlands General Plan 2035, the
projected flows by 2030 (the
Redlands WWTP Projected Annual Average Flows (mgd)
10.0
9.0
2030 Flow
8.0
__..�..
6.1 mgd......__..�..�..w.�...,.�..,_._
7.0
.
12 6.0
5.0
...m.-�.^...,""""".�.�<
.---'-^"
R-
G.6 mgd
Year
7.7 mgd
Year 2060
2040
%' 4.0
K
§ 3.0
c
c
< 2.0
—
10
Assumptions'
2018AAF-5.5mgd
0.8%growth rate
0.0
2010
I
2020 2030
2040
Year
2050
2060
.
2070
current planning horizon) are expected
well below the rated treatment capacity of 9.5
mgd (Figure 1).
Scope of Services
to
be
FIGURE 1. REDLANDS WWTP PROJECTED ANNUAL AVERAGE FLOWS
The scope of work described in this document includes work that was completed as part of the
Phase 1 project, as well as summarizes tasks and associated deliverables for the Phase 2 project.
The implementation of the modified and negotiated scope of work presented herein will:
• Maximize return on investment
• Provides higher level of reliability and redundancy
• Simplify operation by operating one state-of-the-art system (MBR) for the rated 9,5 mgd
capacity
• Defer proposed year 2030 upgrades for several years, meaning significant capital
expenses savings in near future
• Provide higher operational flexibility
• Eliminate permit noncompliance issues by producing high quality recycled water that
complies with permit requirements at all times and is suitable for multiple recycled water
uses
• Bring significant energy savings
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TASK 1- CONDUCT FACILITY CONDITION ASSESSMENT
Phase 1
1.1 Gather and Review Existing Information and Meet with the O&M Staff
The Parsons team will review existing records regarding the facilities, including available record
drawings, reports, O&M manuals, geotechnical reports, permits, 2 years of monthly reports to
the Regional Board, and operational data. A day -long site visit and meeting/workshop with the
City's O&M staff will be arranged to discuss and gather staffs knowledge of the conditions and
current operations of facilities and any undocumented modifications or additions.
1.2 Perform Comprehensive Facility Condition Assessment
Parsons performed a visual condition assessment of the existing facilities as listed below,
compared actual conditions to available record documents, marked up record documents to
reflect actual conditions, and provided an opinion on the facility's physical condition, operational
safety, reliability, and permit and code compliance to operate the WWTP at its design capacity of
9.5 mgd. We determined equipment age or year installed, estimated useful life, general rating of
condition, and notation of significant deterioration/wear. The assessment included the subtasks
described in the following subsections. In cases where multiple similar process units exist (e.g.,
primary clarifiers, secondary clarifiers) and one or more of the units is drained by the City at the
time of inspection, the drained unit(s)and inner condition of the other units based on the
assessment were inspected.
Facilities included in the condition assessment:
1. Headworks
2. Primary clarifiers
3. Primary sludge pump station
4. Peak storage ponds and pump station
5. Aeration basins and blower building
6. Effluent pump station
7. MBR system
S. Recycled water pump station
9. Chlorine Contact System
10. RAS and WAS pump stations
11. Dissolved air flotation thickeners (DAFT)
12. Primary and secondary digesters
13. Dewatering facility
14. Solar photovoltaic array
15. Cogeneration Facility
Electronic records were created to record the information for each piece of equipment, structure,
and control panel evaluated.
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The condition assessment consisted of four documents: Technical Memorandum 1 for Subtask
1.2.1 (TM-1), TM-2 for Subtask 1.2.8, and the Condition Assessment Report for Subtasks 1.2.2
through 1.2.7 and 1.2.9.
1.2.1 Assessment of Key Treatment Processes Performance and Capacities
Parsons' team reviewed the design criteria of key unit processes and evaluated their respective
capacities under the current and design loading and flow conditions. Parsons developed a
realistic capacity flow chart, compared with the permitted capacity and made recommendations
for improvements. Environmental Protection Agency (EPA) redundancy and reliability
requirements, as well as energy and operational efficiency, were considered to evaluate effective
treatment capacity. A technical memorandum (TM-1) summarizing the analysis, key findings
and recommendations with photos and calculations was submitted...
Understanding that the existing chlorination system is rated for 6.6 mgd capacity with CT of 450
mg/L-min, several agencies are working to convince Division of Drinking Water (DDW) for
permitting systems with lower CT, even as low as 30 mg/L-min. The scope of work includes
condition assessment of existing chlorination system for rated 6.6 mgd capacity.
1.2.2 Mechanical Equipment Condition Assessment
Parsons' team performed condition assessment of process/mechanical equipment for the
aforementioned facilities. Assessment included visual observations and assessment of leakage or
corrosion, disabled or inoperable equipment, identified irregular noise/vibration, remaining
useful life, availability and accessibility of spare parts, materials of construction, etc. Parsons
also collected relevant nameplate data and document key findings with digital photographs.
1.2.3 Major Concrete Structures Condition Assessment
Parsons' team performed structural condition assessment for the aforementioned facilities. The
structural condition assessment included visual examination of the aforementioned facilities.
Parsons made recommendations for more advanced testing such as non-destructive testing
(NDT) for certain vulnerable facilities.
1.2.4 Civil Structures Condition Assessment
Parsons' team performed visual condition assessment of civil structures including sidewalks,
paving and grading, drain structures, and other structures. We confirmed structures shown on the
record drawings (e.g., catch basins, outlets, overflows) to determine effectiveness of current
stormwater management practices.
Assumption: neither drainage modifications nor a drainage plan will be required.
1.2.5 Above Ground Pipelines Condition Assessment
The condition assessment of aboveground pipelines included materials of construction and
condition of process piping. Parsons' team conducted visual assessment of above ground piping
throughout the WWTP including coating evaluation and condition of exposed metals.
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Recommendations were made for ultrasonic thickness (UT) measurement on accessible metallic
components to determine the existing thickness.
1.2,6 Underground Pipelines Condition Assessment and Routing
Parsons' team identified and located key underground process piping (greater than 6-inch
diameter) and utilities (gas, water, electrical) at the WWTP site. Parsons team reviewed existing
record drawings to identify and locate process piping and utilities. This information was used as
the baseline for conducting required ground survey to locate and identify key above -ground
features and their ground surface elevations. The work generally conformed to ASCE Standard
38 Guidelines (Quality Level C and/or D) for the collection and depiction of existing subsurface
utility data.
1.2.7 Electrical Equipment and Power Supply Condition Assessment
Parsons' team led by Reconducted a visual condition assessment of electrical and power supply
equipment, including switchgear, MCCs, significant panels, standby systems, power drops,
transformers and distribution system(s), circuit breakers, manholes and pull boxes, conduits and
feeders, duct banks, and interface with the solar power system. The electrical condition
assessment included checking for corrosion damage, problems related to moisture in conduits
and panels, dust, rodents and code compliance. Open accessible manholes with the help of City
staff were opened and cable and conduit via pole cameras were visually inspected without
entering inside. This was used as a basis to screen underground electrical cable and conduits and
identify any areas that need more detailed investigation, As -built sketches of conduit
configuration, sizes, and fill were provided. The visual condition assessment was documented
with notes and photos, opinion of useful component life and impact on the WWTP operation,
energy efficiency, etc.
Assumptions:
• Visual condition assessment of electrical gear will require shutdown by City staff to open
panels and MCCs.
• Parsons will provide one man with fall protection and confined space entry training to
inspect manholes.
• The City will provide a confined space entry team and necessary equipment, as needed,
for opening and inspecting manholes.
1.2.8 Energy Consumption and Efficiency Assessment
Parsons identified critical process and non -process loads across the WWTP and conducted a site
investigation to gather key information such as name plate data, start-up current/voltage etc. The
data gathered from the field and record drawings was analyzed and compared against industry
standard energy efficiency benchmarks. A technical memorandum (TM-2) summarizing the
analysis, key findings and recommendations with photos and analysis was submitted,
1.2.9 Instrumentation and SCADA Condition Assessment
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Parsons' team led by RCS conducted a visual condition assessment of existing instrumentation.
Parsons conducted a condition assessment of the SCADA system. For each item assessed, a
general rating of condition was provided based on estimated useful life, suitability for the
application including any code compliance issues, accessibility and physical relationship to the
process including lines of sight from controls to the equipment.
The existing SCADA system hardware and software was assessed based on useful life including
identification of any system components that needed to be upgraded by virtue of their
obsolescence or their functional limitations. Based on this assessment, the expansion capability
of the existing SCADA system, compatibility with third party systems, completeness of SCADA
HMI graphics and SCADA monitoring features such as alarms, trends, events etc. were carefully
analyzed.
Phase 2
Parsons has been completing engineering services during construction for Phase 1B and
condition assessment and design services for Phase 2 of the Redlands Wastewater Treatment
Plant (WWTP) Improvements. Parsons is requesting funding for additional engineering services
requested by the City including the following:
* Revised condition assessment for Digesters 1 and 2
* Phase 1B design services during construction
* Additional surveying for potholing
* Revised geotechnical investigation
* Drawing of Process and instrumentation diagram (P&ID) drawings for existing processes
* Blower building seismic retrofit
* Additional electrical system design
* Include miscellaneous improvements in design
1.3 Conduct Testing of Concrete at Headworks to Determine Extent of Damage and Formulate
Repair
Concrete samples will be collected and tested to ascertain condition of concrete, based on which structural
repair recommendations will be made. As a minimum, deteriorated concrete at beam pockets must be
replaced with repair concrete such as Sikacrete 211.
1.4 Evaluate Key Process Pipelines
Critical process pipelines will be identified, and testing methods selected in conjunction with the
City. The following critical process pipelines were identified in discussions with the City:
• 27-inch pipeline from headworks to primary clarifiers
• 36-inch pipeline from primary clarifiers to peak pond pump station
• 36-inch pipeline from peak pond pump station to peak pond pump no. 1
• 27-inch pipeline from effluent pump station to percolation ponds
• 6-inch pipeline from primary sludge pumps to digesters
• 6-inch pipeline from WAS pumps to DAF thickeners
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1.5 Evaluate Condition of Digesters
Evaluate condition of digesters/digester lining for all primary and secondary digesters — Concrete
box at the top of Primary Digester No. 2 has partial structural failure. A detailed structural
analysis will be done to formulate and implement a structural repair plan, to provide a design
solution that will mitigate the risk of further structural failure. Digester lining for all digesters
will also be evaluated in detail and recommendations for improvement will be made accordingly.
Digester piping, valving and related appurtenances will also be evaluated in detail. Digester
mixing for all primary and secondary digesters will be evaluated, and necessary
recommendations will be made.
V&A Consulting Engineers conducted the Phase 2 condition assessment investigations of the
Headworks and Digester. No. 3. V&A's original proposal, which was prepared prior to the start
of Phase 2 services, included Digesters. Nos. 1 and 2 as well.
At the onset of Phase 2 condition assessment activities, the City indicated the digesters could not
be taken out of service for assessment until after construction of Digester No. 4 (currently being
designed as part of Phase 2), so V&A proceeded with condition assessment of the Headworks
only and provided their report. Several months later it was determined that the digesters could be
made available for inspection during Phase 1B replacement of the digester boilers and heat
exchangers. V&A initially was able to assess Digester No. 3 only: Due do the extended Phase 1B
schedule and complications with the digester boiler replacements and gas conditioning startup,
our condition assessment of Digesters 1 and 2 has yet to be completed.
V&A had originally anticipated that all condition assessment field investigations would be
completed at one time; now, due to availability of digesters, ultimately there will be three distinct
mobilizations spread more than 15 months apart required to complete their investigations. This is
a prevailing wage project, and monthly coordination/reporting to Department of Industrial
Relations is required until the project is completed/closed out, which has increased their project
management costs. In addition, V&A's scope of work/fee included one condition assessment
report, which they completed with the headworks condition assessment: Once the project was
separated, it necessitated a second report be prepared for the digesters condition assessment.
Based on these changes, V&A has requested additional budget to complete remaining services
(condition assessment of Digesters 1 and 2 and completion of a digesters condition assessment
report).
1.6 Conduct a Seismic Study of Structures and Buildings
Conduct seismic evaluations of the following occupied structures:
• Administration building
• Operations control building
• Maintenance building
• Wastewater Collections Office building
• Digesters and associated buildings
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• Above ground tanks including the MBRs, Aeration Basins, and the Clarifiers
Attached Exhibit E includes a memo on the proposed approach for this seismic evaluation and an
inventory of buildings and structures that will be included in this analysis.
1.7 Water Quality Laboratory Expansion/Improvements
The existing Operations/Laboratory Building will require modification/expansion to
accommodate future space and operational requirements. The upgraded facility will include
necessary improvements -to comply with current applicable codes and standards. Parsons will
develop a program of space requirements for operations personnel, lab process and material
flow, operational adjacencies, and an overall facility layout. Scope of work for the
modification/expansion of the lab building will include the following:
• Condition assessment of the existing Operations/Laboratory Building documenting
existing lab activities, systems and equipment.
• Code of Record of Applicable Codes, Criteria and project requirements will be
developed.
• Program and schematic design of the renovation and addition showing administration
offices, restrooms/locker rooms, break & conference rooms as well as the reconfigured
lab will be developed the required upgrades to the equipment and systems will be
summarized in order to comply with current safety, building code and environmental
standards.
• Conceptual drawings of the laboratory and support spaces showing new casework,
cabinets, equipment, and support systems will be provided.
Parsons will prepare a Supplemental Facility Condition Assessment Report to summarize the
investigations noted above and present key recommendations categorized by priority, criticality,
and remaining useful life of assets. A draft report will be issued for City review and comment,
comments will be addressed, and a final report will be issued.
Parsons will hold a condition assessment review workshop (refer to Subtask 5.5) to review the
findings of and recommendations from the condition assessment with the City. Parsons will
document all discussions and decisions made in the workshop, and enter this information into a
decision log. Parsons will submit the draft report for review prior to the workshop.
Phase 2 Scope Assumptions:
• Further structural recommendations for deteriorated concrete at Headworks channels may
be provided based on concrete test results; associated level of effort is not included at this
time.
For inspection of buried pipelines, it is assumed that inspection will be done while the pipelines
remain in service using Smartball®O technology.
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DELIVERABLES
NIA
1.Phase 1
TM-1 Key Processes Performance and Capacities, Draft and Final
TM-2 Energy Consumption and Efficiency Assessment, Draft and Final
Facility Condition Assessment Report: suinmarized field investigations perdiscipline per Phase 1 scope of
work and presented key recommendations categorized by; priority, criticality, and remaining useful life of
assets. Draft and Final
2.Phase 2
Comprehensive Facility Condition Assessment Report: will summarize field `investigations per discipline per
Phase 2 scope of work and present key recommendations categorized by priority, criticality, and remaining
useful life of assets. Draft and Final
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TASK 2 — DEVELOP MULTIPURPOSE PROJECT REPORT/IMPLEMENTATION
PLAN (COMPLETED DURING PHASE 1)
Parsons developed a multipurpose Project Report including a detailed implementation plan based
on findings from Task 1, Phase 1. The implementation plan includes a list of recommended
improvements for operation of the WWTP at its current 9.5 mgd permitted capacity considering
the criteria of treatment process efficiency, life cycle cost, redundancy, operations convenience,
permitting impacts, energy efficiency initiatives, and process control.
The Project Report includes a capital improvement program (CIP) schedule and phased
implementation plan to support the City's strategy for upgrade and improvement of the WWTP
processes. The CIP schedule and implementation plan includes near- and long-term milestones,
timeline for design, construction, start-up and training, permitting, California Environmental
Quality Act (CEQA) exemption documentation, SRF loan and/or grants funding, etc.
In addition to above, the Project Report meets the Project Report requirements for the SRF loan
application package.
DELIVERABLES
• Project Report/Implementation Plan, Draft and Final
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TASK 3 - PROVIDE ENGINEERING DESIGN SERVICES
Basis of Design (Bid Package) Development
Phase 1
Parsons submitted design packages for the Phase 1A project in June 2020 and Phase 1B project
in October 2020. The following work was completed as part of the Phase 1A and Phase 1B
projects:
MBR Facility
• Installation of new membranes/eductor system for 6 mgd - Design modifications to MBR
basins to hold preselected membranes in the existing basins for up to the rated average
capacity of 6 mgd (6,6 mgd peak) to provide treatment capacity for Phase 1. To meet the
average daily flow capacity of 6 mgd at the specified fluxes, six (6) trains of fourteen
(14) cassettes each have been provided.
• Evaluation and repair of existing membrane tanks concrete.
• Installation of weirs in membrane tanks — weirs will be provided by the MBR Equipment
Supplier and will be installed in each basin in advance of membrane installation in that
train.
• Ensure MBR system (including air scour blowers) is incorporated into plant SCADA by
modifying existing PLCs Current ethernet communication cards may not support
communication with the turbo blower CPU which will limit the integration necessary to
achieve the full benefit of the turbo membrane scour blower system. MBR vendor will
provide a current Allen-Bradley ControlLogix series controller and PanelView Plus 7
HMI to replace the existing obsolete controller and HMI, respectively. Additionally, an
ethernet module will also be provided to isolate the turbo blowers from the larger control
network to ensure no issues with multicast traffic and communication. The existing I/O
modules are current models and readily available, thus not requiring replacement. A few
programming changes will be coordinated with the MBR vendor to integrate these
blowers into the existing system.
Scour Air Blowers
• Design upgrades for air scour blowers will include three (3) 3700-SCFM high-speed
turbo blowers. These blowers are sized for the full plant capacity so that no additional
equipment will be required for the future package. Parsons will coordinate with the
vendor for vendor control system and ancillaries needed as well as on -site time for the
vendor representative. Parsons will also coordinate programming changes that will be
needed to ensure smooth integration of these blowers into the existing system.
• Evaluate any potential structural requirements for installation of air scour blowers and
harmonic filters.
• Design power supply for fine screens and evaluate power feed requirements for
membranes and air scour blowers to determine if existing power supply is adequate,
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Fine Screens
• Installation of new fine screens - Parsons will evaluate all potential alternatives for
location of the new fine screen facility and determine most feasible location for both
phases. Three (3) in -tank inclined rotary drum type fine screens (2-mm perforated) each
rated for 7.6 mgd flow, will be installed.
• Design civil aspects of concrete pad for fine screens structure.
• Address general site requirements including site access, site grading, pavement etc. for
new fine screen facility.
• Design underground yard piping for routing pipelines to fine screens and from fine
screens to aeration basins.
• Design of concrete pad and structural platform for installation of fine screens.
• Integrate fine screens with plant SCADA. Develop P&ID and control narrative for O&M
manual - Parsons team will coordinate with the MBR vendor to ensure transition of the
new fine screens to the existing plant SCADA. P&ID and control narratives will be
developed for updating the current O&M manual. Additionally, Parsons will also
coordinate the controls logic sequence chart (CLSC) and the operation sequence chart
(OSC).
Digestion System Upgrades
• Design addition of new boilers for consistent heating of digesters and heat exchangers —
Existing digester boilers are out of compliance and need to be replaced immediately.
• Provide digester gas conditioning — H2S and siloxane removal systems will be provided
upstream of the boilers.
Phase 2
Key considerations are listed below for development of the design package and fee estimate.
They include upgrade of the WWTP with a state-of-the-art 9.5 mgd MBR system and necessary
improvements for reliability and redundancy.
1. Headworks
• Parshall Flume FIT-1102 will be replaced
• Replacement of raw sewage pumps nos. 1-3
• Design new gas detection system and alarms for MCC building
• Relocate air compressor in front of MCC enclosure
• Provide new biotrickling filter odor control system
• Provide two washer -compactors for screenings
• Provide two washer -classifiers for grit
• Provide SCADA interface for headworks equipment — see Section 13, Plant -wide
I&C and SCADA system.
• Replace old headworks motor control center (MCC) — see Section 14, Plant -wide
electrical system.
• Design new prefabricated building for MCC replacement
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2. Primary Clarifiers and Primary Sludge Pump Station
• Replace collectors and drives for primary clarifiers nos. 1-3
• Design replacement of chain and flight mechanism for Clarifier No. 2Replace
primary sludge pumps nos. 1 and 2
• Replace all equipment powered by 240V to 480V power
• Design new ferric chloride dosing pumps for flow/load proportional control
• Design of new ferric chloride storage tank
• Provide recoating of concrete ferric chloride containment area
• Provisions for adequate ventilation to primary sludge pump room (6-12 ACH)
• Design SCADA interface for primary clarifiers and sludge pumps — see Section 13,
Plant -wide I&C and SCADA system.
• Replace MCC at primary sludge pump station — see Section 14, Plant -wide electrical
system.
• Design new prefabricated building for MCC replacement
3. Peak Ponds and Pump Station
• Evaluate and design mixing system for the Peak Ponds such as SolarBee®O solar
powered floating mixing units in each pond to maintain a uniform mixture of contents
in the ponds.
• Peak Pond Pump Station (PPPS) capacity/performance will be evaluated. Peak
capacity with all 3 pumps operating (no standby) is 13.3 MGD. Additionally, the two
oldest PPPS pumps will be replaced with new pumps.
• Design proper pedestrian access (ingress/egress) to bottom of ponds
• Update pump station control strategy — see Section 13, Plant -wide I&C and SCADA
system. Add status and alarm signals to SCADA — see Section 13, Plant -wide I&C
and SCADA system.
• Replace MCC in peak pond pump station — see Section 14, Plant -wide electrical
system
• Design new prefabricated building for MCC replacement
4. Membrane Bioreactor (MBR) and Aeration Basins
• Expand MBR capacity to 9.5 mgd
o Install additional membranes/cassettes
o Design modifications to membrane basins to hold preselected membranes in
the existing basins for up to 9.5 mgd annual dry weather flow (ADWF)
o Replace permeate pumps to support larger treated flows from MBR. Modify
existing backpulse pumps and permeate lines —MBR system has been sized to
handle 13.3 MGD peak flow with one train offline. MBR permeate pumps
will be sized to handle 13.3 MGD peak flow with 5 duty pumps (one standby
pump). Existing permeate lines will be checked to ensure they are adequate
for future flows. Due to higher peak flows, the existing permeate lines from
membranes to permeate pumps may need to be upsized.
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• Convert CAS aeration basins (3) to MBR aeration basins
o Provide new mixed liquor recycle (MLR) pumps and mixers
o Install/configure new baffles
o Upgrade RAS pumps to provide additional capacity for 9.5-mgd MBR
• Replace aeration blowers - Existing aeration blowers will be replaced with high-speed
Turbo blowers, In addition to this, Parsons will also evaluate and provide
recommendations for bearing type (air or magnetic),
• Replace aeration diffusers for all basins and design improvements to aeration control
system for energy efficiency — Parsons will investigate design solutions where
aeration diffusers can be replaced or taken offline for inspection and maintenance
without taking the aeration basin out of service,
• Replace piping for aeration blowers on the existing CAS train
• Provide new mud valves for aeration basins
• Provide HVAC improvements to aeration basin blower building
• Design code compliance upgrades to blower building and install panic bars on doors
• Equipment pad located in the northeast corner of the aeration basins has exposed
bottom of the concrete pad. Instructions will be provided in the design for the
contractor to fill in the footing cavity with concrete and construct concrete curb
around pad to shore the equipment pad.
5. Effluent Pump Station
• Replace effluent pump no. 3
• Provide a parallel pipeline to percolation ponds — see Section15, Site Civil.
• Provide SCADA interface for process analyzers for effluent pump station monitoring
and recording — see Section 13, Plant -wide I&C and SCADA system
• Replace MCC-F and MCC-G — see Section 14, Plant -wide electrical system Design
new prefabricated building for MCC replacement
6. Recycled Water Pump Station
• Replace recycled water pump no. 1
7. Impure Water Pumps
• The impure water pumps are located right below the chlorine contact tanks and
provide washwater for cleaning/spraying etc. In the future, these pumps will also
deliver water for fine screens cleaning. Capacity of these pumps need to be evaluated
to ensure future requirements for washwater/fine screens cleaning etc. are met,
• Provide SCADA interface for impure water pumps — see Section 13, Plant -wide I&C
and SCADA system
8. Supernatant Ponds
• Replace MCC-Y — see Section 14, Plant -wide electrical system Improve struvite
management
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o Provide a centrate equalization tank, pumping station, and glass -lined piping
to the Fine Screens.
9. Thickening System
• Replace thickened waste activated sludge (TWAS) pumps nos. 1-4
• Replace dissolved air floatation thickener (DAFT) recycle pump no. 1
• Design overhaul/replacement of internal mechanism for DAFT no. 1Provide SCADA
interface for DAFTs — see Section 13, Plant -wide I&C and SCADA system Replace
MCC-D — see Section 14, Plant -wide electrical system
• Design new prefabricated building for MCC replacement
10. Digestion System
• Provide additional digestion capacity by construction of a new digester. Existing
secondary digester will continue to be used as a holding tank for storing sludge,
allowing the intermittent operation of dewatering centrifuges.
• Reline existing digesters
• Provide SCADA interface for digesters and upgrade digester feeding strategy — see
Section 13, Plant -wide I&C and SCADA system
11. Dewatering System
• Parsons will design a new silo and sludge conveyor system for transferring dewatered
sludge from the centrifuges for direct loading onto sludge hauling trailers/trucks.
• Replace dewatering sludge feed pump no. 1
• Replace dewatering grinder no. 1
• Replace small centrifuge to match large centrifuge capacity
• Provide SCADA interface for centrifuges — see Section 13, Plant -wide I&C and
SCADA system
12. Water Quality Laboratory — Improvements and Expansion
• To be determined from Water Quality Lab Study
13. Plant -Wide I&C and Scada System
• Following processes to be interfaced with plant SCADA:
o Headworks — bar screens and grit removal equipment
o Primary clarifiers and sludge pumps
o Fine Screens
o Primary and secondary digesters
o DAF thickeners
o Dewatering centrifuges
o Impure Water Pumps
o Waste Gas Flare
o Gas Conditioning System
• Following process areas status and alarms need to be displayed on plant SCADA:
o Headworks — raw sewage pumps high temperature alarms
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o Peak pond pumps high temperature and seal leak alarms
o Aeration basin mixers run and fail status
o RAS & WAS pumps high temperature alarms and WAS pumps station level
switches (LSLL/LSHH)
o Secondary clarifiers pH analyzer
o Effluent pumps high temperature alarms
o Recycled water pumps high temperature alarms
o SCADA communication health
• Upgrade to latest Allen-Bradley ControlLogix 5580 controllers with built-in Ethernet
communications throughout the plant
• Convert PLC/SCADA communication network to Device Level Ring (DLR)
topology
• Review and update missing calibration stickers on all instruments
• Optimize existing plant control strategies
• Update existing P&IDs for facilities being modified under the current scope of work
14. Plant -Wide Electrical System
• Replace switchboard "M" — Switchboard "M" installed in 1972 (almost 50 years ago)
provides power to key process areas such as return sludge pump station, headworks,
primary clarifiers, thickener building, digesters, DAF thickener, effluent pump
station, maintenance building, operations building and sludge pump station.
Considering that the typical useful life of a switchboard is up to 30 years, switchboard
"M" has far exceeded its useful life. Failure of Switchboard "M" will cause power
disruption to the majority of treatment plant process areas.
• Replace MCC-B, MCC-C, MCC -CA, MCC-D, MCC-E, MCC-F, and MCC-G and
MCC-Y
o MCC-C, MCC-D, MCC-E, MCC-F and MCC-G, installed in 1972
o MCC-B installed prior to 1961; replace existing 240V MCC with a new, 480V
MCC at a different location (outside of primary clarifier sludge pump room)
o MCC -CA and MCC-Y installed in 1988
• The following areas are non -compliant with NFPA 820 for electrical installation and
need to be changed:
o Headworks: The 10'-0" envelopment of influent channel is classified as Class
1 Division 2 area and "too close" to the electrical building with louvers and
roll -up door opening facing the influent channel. A new prefabricated
enclosure for the MCC will be designed — see Section 1, Headworks.
o Primary Clarifier Basins and Pumps: 18 inches above water surface and 10'-
0" beyond wetted wall is defined as Class 1 Division 2 area per NFPA 820,
Currently, electrical installations at basins and influent channels do not
comply with NEC requirements. Recommendations will be provided so that
NEC requirements can be met.
o Primary Clarifier Sludge Pump Room: Sludge Pump room is below grade
with MCC-B installed in the pump room. Existing room ventilation appears to
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be provided by fan controlled by a timer. Area is classified as Class 1 Division
2 area with ventilation less than 6 air changes per hour. Provide continuous
ventilation per NFPA 820 to reduce the hazardous classification and replace
existing process equipment (240V) to match new MCC voltage (480V).
• Primary Clarifier Sludge Pump Room: Replace existing process equipment (240V) to
match new MCC voltage (480 V)
• Evaluate critical process loads for standby generator and determine load shedding
strategy
15. Site Civil
• Site Civil work will include demolition, grading, yard piping
• Install new 6-foot-high chain link fence (perc ponds area)
• Provide new/redundant pipelines for key critical pipelines
o From headworks to primary clarifiers
o From primary clarifiers to peak ponds
o From aeration basins to membrane basins to accommodate increased flows to
the MBR process
o From effluent pump station to percolation ponds
o Others as determined in Task 1, Condition Assessment.
• New AC pavement for locations where new pipelines will be installed
16. Landscape Architecture
Landscaping design will include the property frontage along Nevada Street, the plant
entrance, the drive all the way past the Operations/Laboratory Building and employee
parking to the Maintenance Building, and the areas between the entrance drive and the plant
access drive north of the Chlorine Contact Tank Operations/Laboratory Building and
employee parking.
• Prepare preliminary design and initial concept ideas — Initial concept ideas will be
presented in blackline plan and elevations for City review. Upon receipt of initial
City feedback, we will refine our exhibits in color, with 3d modeled rendering
exhibits prepared for the entry monument, gate and beautification areas, informational
exhibits, as well as the walkway and patio improvement areas.
• Prepare final design including demolition plans, construction plans and details,
planting plans and irrigation plans — Final design will entail the following:
o Demolition Plans
o Construction Plans & Details
o Planting Plans
o Irrigation Plans
17. Optional Items
• Develop demolition drawings for decommissioned fine screens equipment on the
MBR deck.
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• Witnessing of factory acceptance testing of major equipment such as aeration
blowers, aeration diffusers, new centrifuge etc.
• Repair supernatant pond lining
3.1 Provide SRF Loan and Grant Applications Support
Phase 1
Parsons provided technical support for State Revolving Fund (SRF) Loans through State Water
Resources Control Board (SWRCB), as requested by the City.
The Project Report required for SRF loan was developed under Task 2 — Multipurpose Project
Report/Implementation Plan.
Phase 2
Provide technical support for SRF loan and available grants/incentives, on an as -needed basis up
to the amount shown in the fee estimate.
3.2 CEQA/EIR and NEPA Related Activities
Phase 1
The proposed design project is subject to CEQA requirements. The project was evaluated to
determine if it qualifies for an exemption from CEQA. Based on the Basis of Design (Bid
Package) proposed, very limited new construction will be included in the project. Therefore,
earth work will be minimal, which we believed will make the project qualify for a CEQA
exemption.
In order to pursue an SRF loan or grant from the State Water Resources Control Board, in
addition to filing for CEQA exemption, the project must comply with certain National
Environmental Policy Act (NEPA) requirements. Parsons conducted and incorporated the results
of the following three technical studies required per NEPA, which were provided to the City to
include as exhibits to the SRF application:
• EPA Clean Air Act Conformity Analysis
• Biological Resources Evaluation (threatened and endangered species, wetlands)
• Archaeological and historic resources subject to National Historic Preservation Act Section
106 requirements.
During the course of the biological investigation, our team noted that the percolation ponds east
of the main wastewater treatment plant and Alabama Street are in a sensitive habitat area for
some small mammals. Burrows were found around the percolation ponds. This required small
mammal trapping activities to be conducted to confirm the presence of sensitive species
including:
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• The San Bernardino kangaroo rat (SBKR)
• LA pocket mouse
• Northwestern San Diego pocket mouse
Trapping activities were conducted, and SBKR were confirmed on the site. Our environmental
subconsultant also spotted red-tailed hawks in the area. The presence of SBKR and red-tailed hawks
required the CEQA-Plus process to switch from completing a Conditional Exemption (CE) to preparing
an Initial Study/Mitigated Negative Declaration (IS/MND).
Parsons conducted and incorporated the results of the following technical studies required per
NEPA into a draft Initial Study/Mitigated Negative Declaration (IS/MND); these studies were
provided to the City for use as exhibits to the SRF application.
Phase 2
The draft IS/MND was completed but did not go through the environmental review process.
Parsons will review and revise the draft IS/MND to reflect the Phase 2 scope of work. At this
time the following modifications are anticipated:
1. Addition of pipeline between the effluent pump station and the percolation ponds.
2. Deletion of percolation ponds improvements from the project.
Proposed project changes will require amendments to the following technical studies:
o Biological Resources Evaluation (threatened and endangered species, wetlands)
o Archaeological and historic resources subject to National Historic Preservation Act
Section 106 requirements
Upon revision of the IS/MND, Parsons will submit the document for City review and approval.
The IS/MND will then be circulated for a 30-day public review period (along with publication of
the Notice of Intent in the local newspaper), and responses to public comments on the document
will be prepared. As part of this task, Parsons will attend one Planning Commission and/or City
Council meeting and file the Notice of Completion with the County Clerk.
DELIVERABLES
ID
3.Phase 1
Conditional Exemption
EPA Clean Air Act Conformity Analysis
Biological Resources Evaluation (threatened and endangered species, wetlands)
Archaeological and historic resources subject to National Historic Preservation Ac
Small Mammal Trapping Report
Draft Initial Study/Mitigated Negative Declaration (IS/MND)
4.
5.Phase 2
Amendment to the Biological Resources Evaluation (threatened and endangered species, wetlands
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Section 106 requirements
Amendment to the Archaeological and histo
106;requireinents
Revised IS/MND, Draft and Final
Responses to public comments to the IS/MND
•ic resources subject to National Historic Preservation Act Section
3.3 Conduct Utility Investigation
Phase 2
Parsons will review the existing conditions of utilities serving the WWTP, including electric,
gas, water, and modem. If upgrades of certain utilities are warranted to meet the current WWTP
upgrade project needs, Parsons will coordinate with such utility companies and prepare an initial
request for utility information such as atlas sheets, mapping, or as -built plans, and will notify
them of the need to install planned facilities. If upgrade of utilities is required, Parsons will
coordinate with utility companies. Parsons will pothole up to 10 locations. Parsons will provide
the appropriate USA notifications and coordinate obtaining information from utility companies.
The potholing plan will be fully coordinated with and approved by the City before any field
work.
Parsons initially estimated 10 potholes for the Phase 2 scope of work, and subconsultant Cbelow
Subsurface Imaging estimated this effort at $65,500. Based on Phase 1B construction, Parsons is
now recommending additional potholing be conducted and has identified approximately 130
locations; Cbelow estimated this effort as $145,520. The City agreed to complete the potholing
with its own forces. This work is currently in progress and reallocated the Cbelow budget to
other tasks.
3.4 Conduct Topographical Survey for Design
Phase 1
Parsons provided aerial and limited field topographic surveys, mapping, and utility research as
required for the project design for the wastewater treatment plant site and the percolation ponds
site. We established survey ground control and conducted a detailed topographic survey of the
project areas required for design completion. The survey and datum were tied into the state plane
coordinate system and City or County benchmarks. Additionally, existing survey data was
evaluated and any additional requirements were determined. Parsons reviewed existing survey
data and provided aerial and limited field topographic surveys, mapping, and utility research as
required for the project design. Parsons team established survey ground control and conducted
detailed topographic survey of the project areas required for design completion. The survey and
datum were tied into the state plane coordinate system and City or County benchmarks.
Phase 2
Parsons' surveying subconsultant will conduct aerial and topographic surveys between the
wastewater treatment plant area and the percolation ponds for purposes of adding a redundant
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pipeline between the two. Parsons will coordinate surveying effort, review subconsultant
deliverables and provide comments, and incorporate survey information into design documents.
Coast Surveying is surveying the potholes being completed by City forces and additional
structure and infrastructure elements throughout the plant to assist our design team. Coast
Surveying has estimated the cost to complete this work as S 17,349; they have $3,371 remaining
on their subcontract, resulting in a net increase to Coast's subcontract of $13,978.
DELIVERABLES
6.Phase 1
Survey for the wastewater treatment plant site and percolation ponds
7.
8.Phase 2'
Survey for the pipeline alignment between the wastewater treatment plant site and the percolation ponds
3.5 Conduct Geotechnical Investigations
Phase 1
Parsons subcontractor drilled two (2) soil borings in the digester area and one (1) soil boring in
the fine screens area at varying depths. Undisturbed ring samples of the subsurface materials
were obtained and tested in a soil laboratory to evaluate their physical characteristics and
engineering properties. A Preliminary Geotechnical Investigation Report was developed with
recommendations.
Phase 2
Parsons' geotechnical subconsultant will conduct geotechnical investigations and prepare a
geotechnical investigation report (GIR) for the proposed on -site facilities. The GIR will
determine the suitability of the sites to allow for construction of new facilities such as new
pipelines, AC pavements and new structures and provide design and construction
recommendations for the project facilities. The GIR will include as identified and recommended
by the geotechnical engineer associated with the proposed improvements:
• Necessary design and construction issues, including regional seismicity
• Site seismic parameters
• Groundwater presence and level
• Liquefaction
• Construction dewatering requirements (if applicable)
• Site preparation and earthwork, trenching, trench stability and excavation
• Shoring, bedding, backfill
• Excavatability of soils
• Suitability of excavated materials for backfill and compaction
• Anticipated settlement of foundations
• Bedding requirements
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• Pavement section recommendations
• Soil bearing strength recommendations, etc,
1. Field exploration will consist of soil borings and cone penetration tests (CPT) at
approximately six locations, 20 to 50 feet below ground surface. Borings will be provided
at locations, intervals and depths sufficient to achieve the required information as
necessary for the design.
2. Pipeline between effluent pump station and percolation ponds is anticipated to be 10 to
30 feet below grade; borings will be drilled at approximately equal spacing along the
alignments of this pipeline. The borings along the pipeline alignment will be no less than
one field boring for each 1,000 feet of pipeline to a depth of minimum 3 feet below the
bottom of trench excavation.
3. Undisturbed ring samples of the subsurface materials will be obtained and tested in a soil
laboratory to evaluate their physical characteristics and engineering properties.
Parsons will coordinate geotechnical site investigations, review geotechnical report and other
subconsultant deliverables and provide comments and incorporate relevant geotechnical site
information for the design of various process areas, as applicable.
The original proposal from Converse Consultants, which was prepared prior to the start of Phase
2 services, included 10 borings to a total depth of 280 feet. Parsons provided Converse the 50
Percent Design Submittal, and Structural Team discussed with Converse changes to the design
concept since inception and structural design criteria needed from the geotechnical investigation.
Converse's revised proposal is for 16 borings to a total depth of 325 feet. Additionally, Converse
is now encountering elevated fuel and equipment rental costs. Overall, Converse is requesting an
additional $21,959 for geotechnical engineering services.
DELIVERABLES
9.Phase `1
• Geotechnical Investigation Report,
10.
11,Phase 2
• Geotechnical Investigation Report
3.6 Prepare Preliminary Report
Phase 2
The following technical memoranda will be prepared and presented to the City for consideration
as they may impact the design scope for the Phase 2 project: Their accepted findings will be
incorporated into the preliminary design report.
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• TM-1: Evaluate mixing capabilities of existing digesters - —The Parsons Process team
will evaluate the mixing systems of all primary and secondary digesters, and provide
recommendations for necessary improvements.
• TM-2: Investigate alternative, less expensive technologies for thickening to replace
current primary DAF thickener - Parsons will provide preliminary high-level screening
of some prominent thickening technologies in order to select the two most beneficial
technologies. These selected technologies will be then compared to DAF thickener
through a life cycle cost analysis.
• TM 3: Evaluate centrifuge capacity and redundancy - Parsons will evaluate the existing
dewatering equipment capacity and redundancy, using the design solids loads, and will
recommend the required upgrades.
• TM-4: Evaluate re -design of the dewatered sludge cake loading station and conveyance
of dewatered sludge - Parsons will evaluate the loading station based on the new solids
truck dimensions and access requirements. Based on the results of evaluation, Parsons
will provide the City recommended modifications. Additionally, various methods for
conveying dewatered sludge onto the sludge hauling trucks/trailers will also be evaluated
and pros/cons of each method will be summarized in this memo.
• TM-5: Evaluate provisions for phosphorus removal — Centrate is currently sent to the
degas (supernatant) ponds, from where it is pumped to both CAS and MBR trains. FeC13
is added to the MBR side which helps mitigate PO4 levels to meet recycled water
requirements. In the future scenario of returning the centrate downstream of peak ponds,
it will be important to ensure phosphorus limits are in compliance with regulatory
requirements. Since centrate is high in phosphorus, there will be higher phosphorus
concentrations in the liquid stream, impacting effluent limits for recycled water. Parsons
will evaluate the various alternatives for potential sidestream treatment technologies.
• TM-6: Evaluate the effect of landfill leachate on the wastewater treatment plant
processes, digested solids for beneficial reuse, recycled water, and alternative treatment
of leachate prior to entering the wastewater stream if needed - A small continuous flow
of landfill leachate is being accepted at the treatment plant (point of injection is
downstream of grit chambers). The State Water board has asked for effects of leachate on
the various treatment processes, impacts on recycled water and beneficial reuse of
biosolids. A feasibility study/evaluation will be conducted by Parsons to analyze impacts
of constituents including PFAS, metals and TDS on both liquids and solids treatment
processes, as well as to develop possible treatment alternatives. Coordination will also be
conducted with the landfill to explore the option of treating the leachate before it enters
the treatment plant.
• TM-7: Evaluate the feasibility of designing and installing recycled water storage tanks
(reservoirs) to meet growing demand for recycled water — Parsons will evaluate
conceptual system configuration, storage tank sizing and location.
• TM 8: Evaluate RAS/WAS pumps — Evaluate if existing recirculation/sludge wasting
pumps are adequate for converted aeration basins, to handle higher MLSS concentrations
of 8,000 mg/L. Addition of pumps may be required to handle larger treated flows from
MBR. Return flow of 3Q can be obtained with the existing pumps. However, for
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reduced lifecycle costs, Suez has requested a return flow of 4Q, which will require
additional pumping capacity. Parsons will evaluate lifecycle costs of additional pumping,
compare it with the reduced lifecycle costs of MBR system, and provide necessary
recommendations.
Draft technical memoranda will be presented to the City for review and comment. Comments
will be incorporated in the final technical memoranda for inclusion in the preliminary design
report.
Once all comments are received regarding the draft technical memoranda, Parsons will prepare a
Preliminary Design Report (PDR) for the proposed improvements. The submittal will include the
following:
• Process calculations
• Process diagrams and control strategy descriptions
• Hydraulic calculations
• Preliminary site layouts
• Motor list
• Single line diagrams
• Preliminary equipment selections and cut sheets
• Preliminary list of drawings
• Specification table of contents
• List of required permits, names of contact persons, telephone numbers, estimates of
permit fees, probable requirements, expected processing times, schedules for application
and receipt, and a plan for having the permit requirements met before project bid.
• Final Technical Memoranda Nos. 1 through 8.
The preliminary design report will be presented to the City in draft form. City comments will be
incorporated in the 30% design submittal.
DELIVERABLES
a
12.Phase 2
Draft Technical Memoranda Nos. 1 through 8
Preliminary Design Report, Draft and Final (including final' technical memoranda'
3.7 Prepare Final Design/Bid Documents and Construction Support
Phase 1 Accelerated Services
3.7.1 Final Design/Bid Documents
Parsons prepared draft and final sets of plans and specifications for the Phase 1A and Phase 1B
submittals. City review comments to the draft submittal were incorporated in the final submittal.
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Parsons held a review workshop with the City for the draft Phase 1B package. Parsons is
providing support to the City for all relevant permitting as required through the design process.
Parsons provided all plans, specifications and estimates in electronic format (AutoCAD 2D,
Word, Excel, etc.).
3.7.2 Bid Phase Services and Engineering Services during Construction
Bid Phase Services:
• Attended Pre -Bid meeting and site walk.
• Requests for Information (RFIs) — received and reviewed Contractor's RFIs during the
Bid Phase to determine if responses are required.
• Addenda — prepare three (3) addenda to provide responses to Bid Phase RFIs.
Engineering Services during Construction: Parsons continues to provide support through
construction of Phase 1B.
• Review and Approve Contractor Submittals (Shop Drawings, Cut Sheets, Manuals,
Vendor Tests, Certifications, and Reports) — Catalog information, review and process
submittals electronically.
o Assumed number of anticipated submittals as twenty (20).
o Assumed number of anticipated resubmittals as ten (10).
• Respond to Requests for Information (RFIs) — Respond to Contractor's RFIs
electronically for all documentation.
o Assume number of anticipated RFIs as twenty-five (25).
• Review of Construction Change Order Requests - Coordinate with the City to review
Contractor's change order requests or develop City -initiated change order requests.
o Assume two (2) anticipated change order requests.
• Design Modifications — Provide design modifications as needed to address RFIs and
change order requests.
• Construction Visits by Design Staff. Provide up to 10 visits from design staff to review
construction progress/installation of equipment provided by the City.
• Provide Field Testing and Start-up Assistance. Provide written start-up protocol and
assistance with process and facilities integration upon construction.
o Provide guidance and review of Contractor's step-by-step Shutdown/Tie-in plans.
o Provide guidance and review of Contractor's Start-up plans.
o Provide guidance and assistance during start-up of facilities, processes, and
equipment.
• Update Existing Operations and Maintenance Manual. Provide updated operations and
maintenance (O&M) manual content in PDF format to replace existing manual MBR
facility content following the format of the existing (O&M) manual,
o Content on new fine screens, air scour blowers and digester boilers, heat
exchangers and gas conditioning will be included,
• Prepare Record Drawings. Prepare record drawings based on the as -built drawings and
contractor -provided redline drawings.
o As -built changes to be created in AutoCAD 2D
o Review the record drawings with the City before finalizing.
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o Submit final record drawings electronically in AutoCAD and PDF format.
As of the end of 2021, remaining Phase 1B construction phase services budget of $150,383.
Through the end of June 2022, it expended to $498,161 for these services, resulting in an
overage of $347,778. Phase 1B services have continued beyond the original project schedule
(end date October 2022), and additional effort than originally anticipated was required to provide
these services. Parsons projected an additional two months and $30,000 to complete these
services.
3.7.3 Construction Management Services
• Full-time Resident Engineering services (RE) can be provided to conduct inspections
throughout installation and start-up of the facility (assumed 180 days)
• Attend progress meetings during installation and start-up as needed.
• RE will provide preliminary review of submittals, RFIs, and other tasks as needed.
Phase 2 Services
3.7.4 Prepare 30% Design Submittal
Upon completion of the preliminary design, Parsons will submit a 30 percent design review
package to the City. The plans and specifications will reflect all applicable past input received
from the City. The submittal will include the following:
• Site plans
• Hydraulic profiles
• Structural plans for new structures
• Mechanical, HVAC and plumbing plans
• P&IDs
• Single line diagrams and preliminary network architecture diagrams
• 30% construction cost estimate
Parsons will hold a 30% design workshop (refer to Subtask 5.5), document all discussions related
to design decisions made in the workshop, and enter this information into a decision log. Parsons
will submit the final PDR and 30 percent design package for review prior to the workshop.
3.7.5 Prepare 60% Design Submittal
Upon completion of the design to the 60 percent complete level, Parsons will submit a 60 percent
design review package to the City. The plans and specifications will reflect all applicable past
input received from the City. The submittal will include the following:
• Site plans
• Topographic survey base map
• Property description and plans for any right-of-way acquisition
• Pothole investigation report
• Preliminary geotechnical investigation report
• Structures plans and sections
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• Mechanical, HVAC and plumbing plans and sections
• P&IDs and network architecture diagrams
• Single line diagrams
• Power plans
• Construction sequencing plan
• Equipment catalog cut sheets
Parsons will hold a 60% design workshop (refer to Subtask 5.5), document all discussions related
to design decisions made in the workshop, and enter this information into a decision log. Parsons
will submit the 60 percent design package for review prior to the workshop.
Parsons will hold an internal constructability workshop with members of our construction team
to review the design and solicit any recommendations to improve the constructability of the
design. The construction team will be given the 60 percent design package to review prior to the
workshop. Recommendations will be considered and implemented in the 90% design submittal
as appropriate
3.7.6 Prepare 90% Design Submittal
Upon completion of the design to the 90 percent complete level, Parsons will submit a 90 percent
design review package to the City. The plans and specifications will reflect all applicable past
input received from the City. The submittal will include the following:
• Civil grading and paving plans, sections and details
• Civil yard piping plans, sections and details
• Structural plans, sections and details
• Mechanical, HVAC and plumbing plans, sections, schedules and details
• P&IDs, Network architecture diagrams and I&C details
• Electrical single line diagrams, plans, control schematics, MCC elevations, panel
schedules, raceway and conduit schedules
• Edited City bid and front end documents
• Complete technical specifications
• Construction sequencing plan
• 90% construction cost estimate
Parsons will hold a 90% design workshop (refer to Subtask 5.5), document all discussions related
to design decisions made in the workshop, and enter this information into a decision log. Parsons
will submit the 90 percent design package for review prior to the workshop.
3.7.7 Prepare Final Design Submittal
Parsons will develop and submit the final submittal upon receipt of 90 percent review comments,
and this will include the following:
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• Design drawings and technical specifications — Plans and specifications will be fully
checked and be ready to be advertised for construction bids. They will reflect all past
City input and will include contractual language and designs required to implement the
controlling agency permit requirements during construction.
• Final edited City bid and front end documents
• Final calculation package
• Final construction sequencing plan
Redrawing of P&iDs
Parsons scope of work for Phase 2 included updating existing P&IDs for facilities being
modified under the current scope of work. We assumed that all existing P&IDs would be
available in electronic format. However, the City was not able to find electronic versions of all
P&IDs. Parsons spent approximately 350 hours researching systems without P&IDs and drawing
the additional P&IDs required for this project.
Blower Building Seismic Retrofit
Parsons conducted a seismic evaluation of a number of structures as part of the Task 1 condition
assessment activities. Upgrades were recommended for a number of structures including the
Blower Building. The blowers will be replaced, and Switchboard M will be removed during
Phase 2. Parsons recommended the City approve moving forward with seismic improvements to
this structure. Parsons has estimated 7 new drawings and 456 total hours will be required to
design these improvements.
Additional Electrical Infrastructure Design
The Parsons Electrical team presented to the City recommended electrical improvements not in
the original scope of work to address code issues and old/worn equipment during two workshops
in February and March 2022. The City agreed with these recommendations (below). Parsons has
estimated 320 total hours will be required to design these improvements.
AREA EQUIPMENT IN SCOPE NOT IN SCOPE NOTES/RECOMMENDATIONS
Raw Sewage Pump MCC-C and MCC -CA X Replace MCCs
Station/Electrical Building
Headworks
Declassify building X
Bar Screens Control Panel X
PLC-004 X
Add visual and audible
alarms.
Relocate out of classified
area.
Relocate out of classified
area.
MCC -CB raw sewage pump X Replace MCC with new VFDs
VFDs in a new building.
Peak Ponds Pump Station MCC-E X
MCC -EA X Replace
Effluent Pump Station MCC-F X
MCC-G X
MCC -FA X Replace
VFD #1 X Replace all VFDs
VFD #2 X
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Recycled Water Pump Station
Impure Water Pumps
Centrate Pumps
VFD #3
MCC-U
MCC-UA
MCC-Y
X
X Replace VFD #1
Connect VFD #2
Replace VFD #3
Investigate/address issues
with MCC/impure water
pump power feed setup.
Miscellaneous Design Additions
The following additional improvements have been requested by the City during execution of
Phase 2 design:
• Berm improvements on west and south sides of Peak Pond No. 2
• High level switches alarmed to SCADA for 5 locations (RSPS/Headworks, PSPS1 &
PSPS2, Centrate, RAS/WAS PS)
DELIVERABLES
13.Phase 1
• Phase 1A Bid Package, Draft and Final
• Phase 1B Bid Package, Draft and Final
14.
15.Phase 2
• 30% Design Submittal
• 60% Design Submittal
• 90% Design Submittal
• Final Design Submittal
3.8 Prepare Construction Cost Estimates
Phase 1
Parsons prepared conceptual engineer's estimates of construction costs for Phase 1A and Phase
1B packages in coordination with the City.
Phase 2
Parsons will prepare engineer's estimates of construction cost at key design milestones (30%,
90%,), to be based on relevant design documents. The cost estimates will be prepared by our cost
estimating group in accordance with the AACE International cost estimate classification system.
All costs will be in current dollars, referenced to the current Engineering News -Record (ENR)
Construction Cost Index (CCI), and escalated to the estimated midpoint of construction.
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DELIVERABLES
16.Phase 1
• Phase 1A Conceptual Construction Cost Estimate
• Phase 1B Conceptual Construction Cost Estimate
17.
18.Phase 2
• 30% Construction Cost Estimate
• 90% Construction Cost Estimate
3.9 Prepare Title 22 Report
Phase 2
Parsons will prepare a Title 22 Report describing the processes used at the plant facilities for
production of recycled water including redundancy and reliability features. The Title 22 Report
will describe how recycled water meeting the Title 22 requirements will be produced at the plant
and safety measures such as disposal of off -spec water in the event of equipment malfunction or
process inadequacies, which may result in the production of recycled water that does not meet
the Title 22 requirements. The Title 22 Report will be submitted to the State Water Resources
.Control Board (SWRCB) — Division of Drinking Water (DDW), and RWQCB for review and
approval.
DELIVERABLES
19. Title 22 Report, Draft and Final
TASK 3 ASSUMPTIONS
• TM-2: The smaller centrifuge will be replaced to match the capacity of the existing larger
centrifuge — this assumption will be revisited depending upon the process evaluation
during the preliminary design stage.
• TM-3: Level of effort estimate includes evaluation of two beneficial technologies for
solids thickening. No design hours have been included for design of recommended
technology.
• TM-4: A conveyor and storage silo have been included in the design — this assumption
will be revisited depending upon the process evaluation during the preliminary design
stage.
• TM-5: Level of effort estimate includes evaluation of phosphorus removal technologies.
No design hours have been included for design of recommended phosphorus removal/
sidestream treatment technology.
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• TM-6: No design hours have been included for design work related to landfill leachate
treatment.
• The City will provide review comments at the 30%, 60% and 90% design stages.
• Parsons will work with all relevant permitting agencies such as California State Water
Resources Control Board, South Coast Air Quality Management District etc., as required
through the design process and gain final approval for the final design submittal.
• Parsons will provide plans in AutoCAD 2D and PDF formats; specifications in Word and
PDF formats; and construction cost estimates in PDF format.
TASK 4 — PROJECT MANAGEMENT, COMMUNICATION AND QUALITY
CONTROL
4.1 Project Management and Prepare Project Management Plan
Parsons will develop a project management plan (PMP) to serve as a roadmap for the project
from facility assessment through construction and startup, identifying the sequence of activities
and including reviews and progress reporting. The PMP will address the project implementation
approach, staffing, organization, project recordkeeping, document control, quality control and
quality assurance responsibilities, and milestones including technical committee meetings and
schedule. A draft PMP will be presented during the kickoff meeting for the City's review and
comments.
Parsons will conduct project management activities throughout the duration of the project
including tracking scope, schedule and budget performance, staffing assignments, and internal
project team coordination.
• Prepare a project management plan (PMP)
• Conduct various project management activities throughout the duration of the project
including tracking scope, schedule, budget, staffing and internal project team
coordination.
4.2 Conduct Project Kickoff Meeting
• Coordinate and attend project kickoff meeting with the City.
Parsons will coordinate and attend a project kickoff meeting with the City. Our project manager
and task leaders will attend. Parsons will submit a detailed project schedule and agenda before
the meeting and submit the meeting minutes to the City within one week.
4.3 Coordinate Monthly Project Meetings and Biweekly Conference Calls
• Coordinate monthly project meetings with the City through the condition assessment and
design phases for the duration of the proposed project schedule.
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• Conduct biweekly conference calls with the City staff during these phases for the
duration of the proposed project schedule.
Parsons will coordinate monthly project meetings and biweekly conference calls with the City.
Parsons' project manager, task leaders, and other key staff (as necessary) will attend monthly
project meetings to discuss the issues identified for the meeting. Parsons will prepare and submit
an agenda before each meeting and will prepare meeting minutes. Conference calls will be less
formal and will be between the City's and Parsons' project managers.
4.4 Provide Monthly Project Progress Reports
Parsons will submit monthly project progress reports, through condition assessment and design
for the duration of the proposed project schedule, summarizing the project's progress for the
most recent calendar month. They will include the following as a minimum:
o Summary of work completed by task
o List of proposed activities for the upcoming month
o List of pending information needed to support the planned activities for the upcoming
month
o List of out -of -scope items
o Percent complete/budget status summary
o Updated project schedule showing work completed through the reporting period
4.5 Conduct Condition Assessment and Design Submittal Review Workshops
• Conduct facility condition assessment review workshops for Phase 1 and Phase 2
• Conduct Phase 1 design submittal review workshops for draft submittals.
• Conduct Phase2 design submittal review workshops at 30% design, 60% design, 90%
design.
• Conduct Phase 2 constructability review workshop.
Parsons will prepare for, coordinate, and attend workshops to present key aspects of design to
City staff at each progress milestone to obtain feedback and direction to move forward.
Workshops may be scheduled adjacent to monthly project coordination meetings or any other
meetings between City staff and Parsons' team. Parsons will submit an agenda before the
meeting and submit minutes of the workshop to the City within one week.
4.6 Provide Quality Control
• Implement quality management throughout the duration of the project.
Parsons will implement its proven Total Quality Management practice for scope, task, and
schedule management to ensure that the deliverables meet Parsons' established QA/QC
procedures. Quality management will be implemented throughout the duration of the project.
TASK 4 ASSUMPTIONS
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1. Phase 2 will include an eight -month condition assessment/facility evaluation.
2. Phase 2 will include a 17-month design period overlapping with condition
assessment/facility evaluation
DELIVERABLES
• PMP, Draft and Updates
• Kickoff Meeting Agenda and Minutes
* Vertical bar indicates additional scope to the Agreement.
• Monthly Meeting Agendas and Minutes (7)
• Monthly Progress Reports (12)
• Workshop Agendas and Minutes (5)
33
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3.2 CEQWNEPA
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3.4 Survey
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60% Design Submittal
90% Design Submittal
Final Design Submittal
Construction Cost Estimating
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SUBTOTAL TASK 3
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