Sunnyvale Cleanwater
Program:
Plant Rehabilitation
Bid Award
CITY COUNCIL MEETING
February 14, 2023
2City of Sunnyvale – City Council Meeting – February 2023 Water Pollution Control Plant
Caribbean Drive
16.5± Acre Site
440± Acre Ponds
LandfillLandfill
Approx. Scale: 1” = 7000’
Pond Facilities
3City of Sunnyvale – City Council Meeting – February 2023 2008-10
2010-112006 2013-16Condition
Assessment
Strategic
Infrastructure Plan
Peer Review
Strategic
Planning Workshop
Master Plan
2012
Sunnyvale Cleanwater Program: Planning
2006 2008 2010 2012 2014 2016 2018 2020
AECOM Condition
Assessment
2017-19
4City of Sunnyvale – City Council Meeting – February 2023 Sunnyvale Cleanwater Program: Drivers
5City of Sunnyvale – City Council Meeting – February 2023 Sunnyvale Cleanwater Program: Projects
CAS-1
Plant Rehab
Cogen
CAS-2
Future Tertiary
Future Solids
6City of Sunnyvale – City Council Meeting – February 2023 Primary
Tertiary
Sunnyvale Cleanwater Program: Split Flow
Secondary
7City of Sunnyvale – City Council Meeting – February 2023 Plant Rehabilitation (Oxidation Pond Facilities)
Pond Circulation Pump
Station Improvements
New Substation and
MCC LC-F
Pond Effluent Pump
Station Electrical
Improvements
8City of Sunnyvale – City Council Meeting – February 2023 Plant Rehabilitation (WPCP)
9City of Sunnyvale – City Council Meeting – February 2023 Minimized scope
Prequalified 6 electrical subcontractors
1-on-1 meetings with 4 general
contractors
Project information online a year
before bid
Cost Control
10City of Sunnyvale – City Council Meeting – February 2023 Bids Opened
November 16, 2022
Bid Results
One Bid Received:
Walsh Construction
Company
($64,390,000)
11City of Sunnyvale – City Council Meeting – February 2023 Alternatives
• Same contractor as Secondary
– efficiencies realized
• Budget Modification
• Psomas Amendment
Award
Project
• Increased operational impact
for Plant Staff
• Prequalify electrical subs
• No guarantee of pricing
Reject bids,
downscope
12City of Sunnyvale – City Council Meeting – February 2023 Downscope (Even More) Analysis
Failure Mode Effects Analysis
What happens if this element fails?
Is there
a safety
issue?
Process
capacity
less than
peak day
flow?
Yes
NoYes
Safety and
Capacity
Issue
Safety Issue
Only
No
NoYes
Capacity
Issue Only
Neither
Safety nor
Capacity
Issue
Process
capacity
less than
peak day
flow?
13City of Sunnyvale – Program Update – November 2022
Financing Sources for Project
Clean Water State Revolving Fund Loan Round 1
$127.1 M at 1.7% Interest, $4 M in loan principal forgiven Financed Primary Treatment and Headworks (Phase 1)
Water Infrastructure Financing and Innovation Act Loan
$220.6 M at 1.56% Interest
Favorable debt service structure with interest only through 2053 Financing a portion of Secondary Treatment (Phase 2)
Clean Water State Revolving Fund Loan Round 2
$302.1 M at 1.6% Interest
Financing the remainder of the Secondary Treatment
14City of Sunnyvale – Program Update – November 2022
Wastewater Fund Impacts
• Low interest loans have helped to absorb the higher costs without steep rises in rates
• For the next five years, the Wastewater Fund will be very rate sensitive as any new costs will result in rate increases • Additional borrowing is anticipated to be needed starting in FY 2031/32
15 Wastewater Rates
0.0%
2.0%
4.0%
6.0%
8.0%
10.0%
12.0%
2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 Adopted Revised
16City of Sunnyvale – City Council Meeting – February 2023 • Appropriates additional funding for Project 833150
• Funding for construction management will be trued-
up for the FY 2023/24 Recommended Budget
Budget Modification No. 13
FY 2022/23
Budget Modification No. 13
Current Increase/
(Decrease)
Revised
Wastewater
Management Fund
Expenditures
Project 833150 – Existing
Plant Rehab
$73,420,308 $25,959,709 $99,380,017
17City of Sunnyvale – City Council Meeting – February 2023
1. Award a construction contract in the amount of $64,390,000 to Walsh;
2. Authorize the City Manager to execute the contract;
3. Approve a 10% construction contingency in the amount of $6,439,000;
4. Approve a CM Amendment in the amount of $6,462,575 for Psomas;
5. Authorize the City Manager to execute the Amendment;
6. Approve a 10% CM contingency in the amount of $646,258;
7. Approve budget modification.
Staff Recommendation
18City of Sunnyvale – Topic/Abbreviated Title – Month Year Thank you
QUESTIONS?