Poway City Council
December 2, 2025

DATE:

TO:

FROM:

CONTACT:

SUBJECT:

Summary:

AGENDA RE PO RT City of Poway

CITY COUNCIL
December 2, 2025
Honorable Mayor and Members of the City Council
Eric Heidemann, Director of Public Works 4·�
Robert Weber, Principal Civil Engineer, Public Works - Utilities�\ J (858) 668-4717 or [email protected] '\..lJ
Approval of an Amendment to the Agreement between the City of Poway and Black & Veatch Corporation for Engineering Design Services for the Poway Treated Water Facilities and Redundant Pipeline Project.

With the goal of increasing the reliability of drinking water for water customers now and for generations to come, the City of Poway (City) is undertaking its largest capital improvement program in the City's history referred to as the Water Infrastructure Improvement Program (Program). The Program was presented to the City Council as an informational item, to provide updates and to request approval of the various components on March 18, 2020; June 16, 2020; October 20, 2020; November 17, 2020; March 16, 2021; April 20, 2021; June 1, 2021; July 20, 2021; August 17, 2021; April 5, 2022; October 18, 2022; February 7, 2023; May 16, 2023; August 15, 2023; September 19, 2023; November 19, 2024; April 15, 2025; and September 16, 2025. A comprehensive summary of the project background and status including photos and time lapse construction video can be found on the project webpage: https://poway.org/water-projects.

During the iterative design process for Phase 3 of the Program, various negotiations and considerations involving the San Diego County Water Authority (SDCWA) and the Ramona Municipal Water District (Ramona) have led to revisions of the original planning-level design and the engineering consultant's draft design submittals. Significant scope revisions during this design phase are now required to meet the revised project needs. This amendment adds the design funds needed to finalize the design plans in accordance with the revised project needs.

Recommended Action:

It is recommended the City Council approve the Tenth Amendment to the Agreement between the City of Poway and Black & Veatch Corporation for Engineering Design Services for the Poway Treated Water Facilities and Redundant Pipeline Project and authorize the City Manager to execute the necessary documents.
1 of26
December 2, 2025, Item #5
December 2, 2025, Item #5
Program
Overview:

The
City
inherited
its
water
distribution
system
when
it
was
incorporated
as
a
city
in
1980.

Drinking
water
health
and
safety
standards
have
evolved
over
time
and
while
the
City
conscientiously
budgeted
for
water
infrastructure
improvements,
this
Program
addresses
key
improvements
identified
in
a
mutual
agreement
with
the
State
of
Califorhia
Water
Resources
Control
Board
Division
of
Drinking
Water
(DDW).

It
includes
the
following
three
projects:

Phase
I -Clearwell
Bypass
Project
The
Clearwell
Bypass
Project
consists
of
temporary
and
permanent
bypass
pipelines,
a
temporary
pump
station,
a pressure
regulating
station
and
two
temporary
bypass
tanks.

Each
tank
has
a storage
capacity
of

1.4 m
illion
gallons
(MG).

The
bypass
pipelines,
pump
station
and
pressure
regulating
facility
are
located
with
in City
property
at
the
Lester
J.

Berglund
Water
Treatment
Plant
(Berglund
WTP)
site,
as
well
as
the
Public
Works
Operations
Yard
and
parking
lot.

The
two
temporary
bypass
tanks
are
located
on
the
softball
field
at
Lake
Poway
Park
. Construction
of
the
bypass
system
allowed
the
original
Clearwell
to
be
taken
offline
for
replacement.

Phase
II -Clearwell
Replacement
Project
The
Clearwell
Replacement
Project
consists
of
replacing
the
1964-vintage
lined
and
covered
embankment
style
Clearwell
with
two
new
4-million-gallon
circular
prestressed
concrete
tanks.

The
old
Clearwell
had
reached
the
end
of
its
useful
life
and
needed
replacement
to
maintain
reliable
service
to
residents
within
the
City's
service
area.

The
overflow
structure
of
the
Clearwell
will
also
be
replaced
with
a new
structure
designed
with
industry
standard
air
gaps.

Phase
Ill
-Treated
Water
Facilities
Project
The
Treated
Water
Facilities
(TWF)
Project
provides
the
City
with
its
first
treated
water
connection
to
the
SDCWA
system
and
is
a cooperative
project
with
both
Ramona
and
SDCWA.

The
project
will
include
a
new
treated
water
connection
and
flow
control
facility
on
Espola
Road,
a
new
bidirectional
treated
water
pipeline,
a
pump
station
and
forebay,
and
a transmission
pipeline
providing
redundancy
to
the
existing
single
transmission
pipeline
on
Lake
Poway
Road.

Discussion: Phase
I -Clearwell
Bypass
Project
Phase
I of
the
Program,
the
Clearwell
Bypass
Project,
is
an
enabling
project
for
subsequent
phases
of
work
. A
project
overview
map
is
provided
as
Attachment
B.

The
original
Clearwell
was
an
embankment
style
lined
and
covered
facility
constructed
in
1964.

There
was
no
means
of
bypassing
the
facility
to
construct
the
replacement
Clearwell,
hence,
construction
of
the
bypass
project,
consisting
of
above
and
below
ground
pipelines,
a temporary
pump
station,
a temporary
pressure
regulating
station
and
two
temporary
bolted-steel
tanks
was
completed
in
September
2022
.

The
project
includes
a
permanent
36-inch
diameter
cement
mortar
lined
and
coated
(CML&C)
steel
bypass
pipeline,
a
temporary
pump
station
to
pump
water
up
to
the
two

1.4 MG
temporary
tanks,
temporary
24-inch
diameter
bypass
piping
and
a pressure
control
facility.

The
bypass
system
operates
by
sending
treated
water
through
the
permanent
bypass
pipeline
to
both
the
distribution
system
and
the
temporary
pump
station
from
where
the
temporary
tanks
are
filled,
and
water
is
then
drawn
out
of
the
temporary
tanks
through
the
pressure
control
facility
and
out
into
the
distribution
system
in
response
to
demand.

System
Operators
at
Berglund
WTP
control
the
overall
rate
of
flow
through
the
bypass
to
mimic
the
deeper
volumetric
fill
and
draw
cycles
that
were
performed
by
the
original
Clearwell.

The
bypass
system
was
tested
and
has
been
successfully
operating
since
November
2022.

This
infrastructure
enables
bypassing
the
existing
Clearwell
and
facilitated
taking
it offline
for
replacement.
2 of
26 December 2, 2025, Item #5
The
Clearwell
Bypass
Project
was
completed
under
budget.

Phase
II -Clearwell
Replacement
Project
The
Clearwell
Replacement
Project
replaces
the
former
Clearwell
with
two
4 MG
circular
prestressed
concrete
tanks.

A
project
overview
map
is
provided
as
Attachment
C.

The
dual
tanks
provide
redundancy
and
operational
flexibility,
allowing
one
tank
to
be
taken
offline
for
future
maintenance
and
repairs
while
the
other
provides
continuous,
uninterrupted
service.

The
prestressed
concrete
tanks
also
provide
superior
seismic
performance
and
a
longer
asset
life
of
approximately
75 years.

With
this
project,
the
overflow
structures
will
also
be
constructed
with
physically
separated
air
gaps,
in
accordance
with
the
agreement
with
DOW.

This
phase
of
work
began
in
January
2024
with
demolition
of
the
existing Clearwell,
demolition
and
removal
of
conflicting
sections
of
old
pipe,
mass
grading
and
earthwork
along
with
soil
processing
for
subsequent
onsite
reuse
of
material,
realignment
of
two
large
diameter
storm
drains
outside
the
footprint
of
the
new
Clearwell
tanks,
construction
of
site
retaining
walls,
construction
of
a
new
drain
vault
and
outlet
control
valve
vault,
installation
of
new
CML&C
steel
pipe,
subgrade
preparation
and
liner
installation,
and
concrete
tank
construction.

The
Clearwell
Replacement
project
is
approximately
90%
complete
and
recently
reached
a
significant
milestone
with
the
completion
of
all
major
concrete
and
piping
work
. Challenges
during
the
project
included
weather
delays
during
the
winters
of
2024
and
2025
and
the
presence
of
rock
throughout
the
site
. However,
the
project
is
on
schedule
for
commissioning
in
Spring
of
2026
and
is
currently
under
budget.

Phase
Ill
-Treated
Water
Facilities
Project
The
TWF
Project
will
provide
the
City
with
its
first
treated
water
supply
. A
project
overview
map
is
provided
as
Attachment
D.

The
TWF
project
will
fulfill
two
important
reliability
and
redundancy
principles:
(1)
prov
ide
a
secondary
source
of
drinking
water
to
the
City
in
the
event
of
either
an
interruption
to
the
untreated
supply
or
unplanned
outage
at
Berglund
WTP,
and
(2)
allow
for
planned
outages
at
the
Berglund
WTP
to
facilitate
maintenance
and
rehabilitation
work
. Future
maintenance
and
rehabilitation
work
at
Berglund
WTP
is
not
currently
within
the
scope
of
the
Program
and
the
TWF
project
is
an
important
enabling
project
toward
this
goal.

The
TWF
project
has
undergone
several
iterations
since
the
Program
began.

The
project
was
originally
conceptualized
as
a
new
Flow
Control
Facility
(FCF)
designated
POW-5
which
would
be
connected
to
the
SDCWA
Ramona
Pipeline,
which
terminates
on
Espola
Road
near
the
Blue
Sky
Ecological
Preserve,
a
new
treated
water
pipeline
on
Espola
and
Lake
Poway
Roads,
and
a
forebay
and
pump
station
on
Lake
Poway
Road
("original
project").

A
new
pump
station
is
needed
to
boost
pressure
from
the
available
pressure
in
the
Ramona
Pipeline
up
to
the
elevation
of
the
new
Clearwells.

During
the
original
design
which
was
performed
in
2022-2023
it was
determined
the
projected
cost
of
this
project
configuration,
which
was
to
be
entirely
paid
by
the
City,
was
prohibitively
high,
which
prompted
staff,
the
Program
Manager,
and
the
Design
Consultant
to
review
other
options
.

Staff,
the
Program
Manager,
and
Design
Consultant
developed
a
new
TWF
project
configuration
that
maximized
use
of
existing
facilities
by
constructing
a
connection
to
the
Ramona
system
immediately
downstream
of
the
existing
RAM-3
Flow
Control
Facility
and
using
existing
Ramona
and
City
pipelines
to
deliver
SDCWA
treated
water
to
the
new
Clearwells
("reconfigured
project'').

These
existing
pipelines
were
originally
constructed
so
the
City
could
provide
Ramona
with
an
emergency
source
of
treated
water
from
the
Berglund
WTP
during
short
term
outages
on
the
SDCWA
treated
water
system.

This
project
would
enable
flow
of
treated
water
from
the
SDCWA
Ramona
pipeline
to
the
City
during
times
when
the
City
needs
treated water
(i.e.,
when
the
Berglund
WTP
is
off-line
for
maintenance
or
in
an
emergency)
and
from
the
City
to
Ramona
(i.e
., when
the
SDCWA
system
is
down
for
maintenance
or
when
Ramona
desires
to
purchase
water
from
the
City).

A
Memorandum
of
Understanding
(MOU)
3 of26
December 2, 2025, Item #5
with Ramona which sets forth the framework to cooperate during project design was approved by the Council on November 19, 2024.

During the completion of the reconfigured project design, SDCWA, Ramona and the City revisited discussions on a collaborative project like the originally contemplated project. These discussions were prompted by SDCWA's newly identified need to rehabilitate their Crossover Pipeline, which is currently the sole source of untreated water to the City. Rehabilitation of the Crossover Pipeline, which SDCWA proposes to conduct in phases, necessitates SDCWA to provide the City with an alternative source of water. Several options to supply Poway with water during multiple Crossover Pipeline shutdowns were discussed among Poway and SDCWA and the conclusion was to revisit the "original project'' with modifications. The new project, hereinafter referred to as the "revised project'' consists of the following:
• New FCF on Espola Road adjacent to RAM-3 and designated as the POW-6 FCF. • New 30-inch diameter bidirectional pipeline in Espola Road. • New forebay and pump station designated as Pump Station No. 16. • 36-inch redundant pipeline on Lake Poway Road.
• Abandonment of 24 and 27-inch diameter pipelines as well as the RAM-2 FCF.

The revised project will provide the City with treated water during SDCWA's Crossover Pipeline rehabilitation project as well as serve as the permanent treated water connection for overall redundancy and to allow Berglund WTP to be taken offline for maintenance and repairs. The revised project also will allow the City to provide locally treated water to Ramona either on the SDCWA's behalf (when the Ramona pipeline is out of service) or by direct agreement between the City and Ramona.

The three agencies have provisionally agreed on a cost share arrangement to fund the project, meaning the project is no longer cost prohibitive.

Environmental Review:

This action is not subject to review under the California Environmental Quality Act (CEQA).

Fiscal Impact:

Sufficient funds are available in the relevant Capital Improvement Project account WTR0028 to amend the Agreement for the recommended amount of $380,062. The City proactively planned for this project as part of the development process for the FY 2025-26 budget, with funds appropriated from the Water Enterprise Fund (5100).

Public Notification:

None.

Attachments:

A. Tenth Amendment to the Agreement with Black & Veatch Corporation B. Figure 1 -Clearwell Bypass Project
C. Figure 2 -Clearwell Replacement Project
D. Figure 3 -Treated Water Facilities Project
4of26
December 2, 2025, Item #5
Reviewed/Approved By:

Assistant City Manager
5 of26
Reviewed By:

Alan Fenstermacher
City Attorney
Approved By:
9f!!ip~
ChrisHazetlne
City Manager
December 2, 2025, Item #5

TENTH AMENDMENT TO STANDARD

AGREEMENT FOR SERVICES
THIS TENTH AMENDMENT TO THE AGREEMENT (the "TENTH AMENDMENT") is made and entered into effective this 3rd day of December, 2025, by and between the CITY OF POWAY, a municipal corporation (hereinafter referred to as "CITY") and BLACK & VEATCH CORPORATIONS, a Kansas corporation, (hereinafter referred to as "CONSUL TANT").

RECITALS

1. CITY and CONSUL TANT entered into that certain AGREEMENT FOR SERVICES, dated April 5, 2022, (the "AGREEMENT"), by which CITY and CONSUL TANT established the terms and conditions for providing engineering design services for the Poway Treated Water Facilities and Redundant Pipeline Project (the "PROJECT").

2. The AGREEMENT term is April 5, 2022, through July 31, 2024, and further provides, inter a/ia, that the AGREEMENT may be extended for two (2) additional one (1) year terms upon approval of the CITY's City Manager.

3. On November 1, 2022, CITY and CONSUL TANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $1,755,596, to a not-to-exceed amount of $1,784,513, and revise the Scope of Services in accordance with Attachment 3.

4. On February 6, 2023, CITY and CONSUL TANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $1,784,513, to a not-to-exceed amount of $1,844,003, and revise the Scope of Services in accordance with Attachment 4.

5. On February 9, 2023, CITY and CONSUL TANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $1,844,003, to a not-to-exceed amount of $1,898,140, and revise the Scope of Services in accordance with Attachment 5.
6 of26 ATTACHMENT A
December 2, 2025, Item #5

6. On February 28, 2023, CITY and CONSUL TANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $1,898,140, to a not-to-exceed amount of $1,955,140, and revise the Scope of Services in accordance with Attachment 6.

7. On March 2, 2023, CITY and CONSUL TANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $1,955,140, to a not-to-exceed amount of $1,999,655, and revise the Scope of Services in accordance with Attachment 7.

8. On June 20, 2023, CITY and CONSUL TANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $1,999,655, to a not-to-exceed amount of $2,013,514, and revise the Scope of Services in accordance with Attachment 8.

9. On August 1, 2024, CITY and CONSUL TANT agreed to extend the term of the AGREEMENT for one (1) year beginning August 1, 2024, and terminating July 31, 2025.

10. On November 19, 2024, CITY and CONSULTANT agreed to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $2,013,514.00, to a not-to-exceed amount of $2,685,969.00 and revise the Scope of Services in accordance with Attachment 9.

11. On August 1, 2025, CITY and CONSUL TANT agreed to amend the term of the AGREEMENT and shall continue to be effective beginning August 1, 2025, and terminate upon completion of project.

12. The CITY and CONSUL TANT now agree to amend the compensation and reimbursement provisions of the AGREEMENT and increase the AGREEMENT amount from a not-to-exceed amount of $2,685,969.00, to a not-to-exceed amount of $3,066,031.00 and revise the Scope of Services in accordance with Attachment 10.

NOW, THEREFORE, IT IS MUTUALLY AGREED AS FOLLOWS:

SECTION 1. Section C of EXHIBIT "A" ("SPECIAL PROVISIONS") of the AGREEMENT are amended to read as follows:
7 of26
December 2, 2025, Item #5
A. Scope of Services.

Consultant agrees to perform consulting services as required by City, which shall consist of the design services further described in the Scope of Services in Attachment 1, 3, 4, 5, 6, 7, 8, and 9 in addition to the additional services submitted on November 13, 2025, which is included in this document as Attachment 10, and incorporated by reference, as if its contents were fully set forth herein. Consultant shall provide the necessary qualified personnel to perform the services.

SECTION 2. Section B of EXHIBIT "A" ("SPECIAL PROVISIONS") of the AGREEMENT is amended to read as follows:

B. Compensation and Reimbursement.

City shall pay Consultant a fee in accordance with the Fee Estimates, which are included in this document as Attachment 10. Total fee is not to exceed $3,066,031.00. Consultant's fee shall include and Consultant shall be responsible for the payment of all federal, state, and local taxes of any kind which are attributable to the compensation received.

In addition to said consulting fee, Consultant shall be reimbursed for all reasonable expenses, including lodging, telephone, and travel (air, auto, rail) necessarily incurred in performance of the services. Consultant shall bill City for such expenses as incurred, referencing this Agreement. All expenses shall be itemized and supported by receipts for amounts in excess of Twenty-Five Dollars ($25.00). Statements for reimbursement of expenses shall be paid within ten (10) days of approval by City. All air travel shall be billed at coach or special fare rates.

Reimbursement for lodging is limited to travel from outside of San Diego County.

Consultant shall receive prior authorization for air travel and lodging expenses.

All other expenses shall be reimbursed in accordance with City's cash disbursement policies in effect at the time incurred.

SECTION 2. Except as otherwise amended by this TENTH AMENDMENT, all other terms and conditions of the AGREEMENT, and each and every attachment, extension, amendment, and exhibit thereto, shall remain in full force and effect. (Remainder of page intentionally left blank.)
8 of26
December 2, 2025, Item #5
IN WITNESS WHEREOF, the parties hereto have duly executed this TENTH AMENDMENT on the date first above written.

CITY OF POWAY
By:------------­
Chris Hazeltine, City Manager
ATTEST:

Carrie Gallagher, CMC, City Clerk
APPROVED AS TO FORM:

Alan Fenstermacher, City Attorney
9 of26

BLACK & VEATCH CORPORATIONS
By:------------­
Kevin N. Davis, P.E., Vice President
December 2, 2025, Item #5
ATTACHMENT 10

SCOPE OF SERVICES
Design Services for the Treated Water Facilities Project (Project No. WTR0028)
AMENDMENT NO.10
The scope of services defined herein are for design components that have been revised after completion of the April 2025 version of the Updated Supplemental Preliminary Design Report (April 2025 UPDR) and partial completion of 90% design based on the previously defined Project scope per Amendment No. 8.

The scope herein includes the work for the revisions stated below, in addition to all remaining work to be completed per the original scope of services, executed on 5th day of April 2022 that was not impacted by the revisions. The major design revisions to the scope of services previously defined per Amendment No. 8, as conceptually shown in Figure 1, are as follows:

Modifications to the Existing 27-inch Ramona Pipeline downstream of RAM-3 for connection with new 30-inch Pipeline and for connection to future POW-6 Flow Control Facility (POW-6), which will be designed and constructed by the San Diego County Water Authority (SDCWA) • Treated water will be sent to Poway and Ramona from POW-6. It is assumed that POW-6 will provide necessary flow control to distribute flows to Poway and Ramona (i.e. flow control valves are not required downstream of POW-6). Isolation valves will be provided as part of this Project downstream of POW-6 (one or two each for Poway and Ramona), it is assumed that all valves will be electrically actuated (open/close, non-modulating) and located in a vault (or two separate vaults).
• A 27-inch butterfly valve will be installed to maintain RAM-3 water deliveries, while the new 30-inch Pipeline is in construction.
• Existing 27-inch RMWD Pipeline and 24-inch Poway Pipeline will be abandoned and slurry filled by SDCWA.

New 30-inch Pipeline (From RAM-6 towards Pump Station 16 on Espola Road and Lake Poway Road)
• New 30-inch Pipeline will convey flow from POW-6 to Pump Station 16 (PS16). The pipeline alignment will generally follow the alignment of the previously designed 36" Pipeline. The 30-inch Pipeline will transition to 36-inch just upstream of the SDCWA aqueduct crossings (approximately at STA 44+75).
• The 30-inch Pipeline will include an inter-tie with the existing 20" Pipeline per the previous 36" Pipeline design (at STA 22+38.56).
• City requested that an evaluation on pipeline material options (i.e. steel vs. PVC) be performed. A brief section summarizing the recommended material selection will be ~-BLACK&VEATCH
1 of 11
10 of26
December 2, 2025, Item #5
included
as
part
of
the
updated
PDR.

Scope
and
fee
for
detailed
design
assumes
steel
pipeline.

If a decision
is
made
to
proceed
with
an
alternative
material
such
as
PVC,
additional
design
services
beyond
this
amendment
would
be
required
to
revise
the
drawings
and
specifications.

Potential
Modification
to
the
Pump
Motor
Size
•
Per
the
April
2025
UPDR,
the
maximum
flow
rate
was
previously
reduced
to
20 cfs
from
24 cfs,
and
the
pump
motor
horse
power
(hp)
per
pump
was
reduced
to
100
hp
each
from
125
hp
(i.e.
status
of
the
current
design
documents,
including
electrical
drawings
and
pump
specs)
•
The
City
has
requested
the
maximum
flow
rate
be
increased
back
to
the
original
flow
rate
of
24 cfs.

As
such,
an
evaluation
will
need
to
be
performed
to
determine
if
the
motor
size
will
need
to
be
increased
back
to
125
hp
or
100
hp
motor
can
handle
the
increased
flow,
and
electrical
and
other
design
changes
will
need
to
be
made
based
on
the
outcome
of
the
analysis,
if
needed.

Elimination
of
VFD's
and
Addition
of
RVSS
•
During
a
meeting
held
on
May
8th
2025,
a decision
was
made
to
eliminate
all
four
(4)
VFD's
that
were
included
in
the
previous
90%
design.

Design
will
be
revised
to
provide
a reduced
voltage
soft
starter
(RVSS)
for
each
of
the
four
pumps.

Space
will
be
reserved,
and
conduits
will
be
provided
for
potential
future
installation
of
up
to
two
(2)
VFD's.

Conversion
of
the
Existing
Portable
Engine-Generator
•
As
part
of
the
April
2025
Updated
PDR,
the
pump
motor
size
was
reduced
from
125
hp
to
100
hp
each
based
on
the
reduced
maximum
flow
rate
from
24 cfs
to
20 cfs.

With
the
decision
to
provide
pumps
with
RVSS's
in
lieu
of
VFD's,
the
required
engine-generator
size
was
determined
to
be
350
kW,
which
is
less
than
the
capacity
previously
indicated
on
the
90%
design
(450
kW).

The
City
has
requested
that
one
of
the
existing
portable
engine­
generator
that
the
City
owns
be
converted
for
permanent
installation
at
the
PS
16 (in
lieu
of
installing
a
new
engine-generator).

Subsequently,
as
part
of
the
latest
Project
scope
revisions
per
this
Amendment,
the
maximum
flow
rate
was
revised
to
24 cfs.

As
such,
the
required
pump
motor
size
and
the
engine-generator
size
will
need
to
be
re-assessed.

If the
350
kW
portable
unit
is
sufficient
for
the
larger
pumps
with
RVSS's,
previous
90%
drawings
and
specifications
will
be
revised
to
indicate
required
modifications
to
convert
the
portable
unit
for
permanent
installation.

If
the
required
capacity
is
determined
to
be
larger
than
350
kW,
a new
engine-generator
will
be
provided.

Poway
Flow
Control
Vault
/
Flow
from
Poway
to
Ramona
•
The
March
2025
Hydraulic
&
Surge
Analysis
TM
will
need
to
be
updated
to
reflect
the
revised
Project
scope
to
utilize
the
30-inch
Pipeline
on
Espola
and
the
Poway
Flow
Control
Vault
(for
the
flow
scenario
from
the
Clearwell
to
the
Ramona
Tank)
to
be
located
at
the
PS
16 site.

Updated
recommendations
on
valve
type,
size
and
the
closing
time
will
be
provided
in
the
updated
TM
and
will
be
incorporated
into
the
updated
90%
design.
~

BLACK&VEATCH
2 of
11 11
of
26 December 2, 2025, Item #5
Phased Construction of Improvements
• Due to the anticipated timing of the POW-6 project, it is assumed that the improvements will be constructed in two phases -Phase 1 for the pipeline portion of the Project (up to approximately Station 47+50} and Phase 2 for the eastern portion of the pipeline towards PS16 and all the work at PS16, its discharge pipeline, and the improvements at Lester J.

Berglund Water Treatment Plant (WTP). However, it is assumed that a single bid package will be prepared to include all Project scope with schedule requirements for phased construction.

Radio Communication between PS 16 and new POW-6
• Design provisions to allow for communication between PS16 and new POW-6 will be provided. It is assumed that flow signals from the new POW-6 will be communicated to plant SCADA by means of radio/telemetry to the PS16 PLC Panel, where it will be integrated into the existing SCADA system. It is assumed that design of a new radio tower at the PS16 site will be included in this Project, but the design and installation of a new radio tower at POW-6 will be provided by SDCWA.
• It is assumed that the recommendations from the Radio Survey Report prepared by Tesco Controls in 2023 are still valid for the radio tower design at PS16 (antenna at 35 ft above ground at PS16). The study was conducted for radio communication between the previously proposed POW-5 and PS16. The currently proposed POW-6 is located generally on the path between POW-5 and PS16 but closer to PS16. It is assumed that a new radio survey will not be required.

Removal Design Elements from Amendment No. 8 Superseded by this Amendment • Remove the following design components from the current 90% design documents:
o Ramona Flow Control Vault
o Modifications to RAM-2
o Lake Poway Road Pipeline Connection between the existing 24-inch Poway Pipeline to Poway's existing 36-inch pipeline as well as the new 36-inch Transmission Pipeline. o Inter-tie between the 24-inch Pipeline to Poway's 20-inch Pipeline near the SDCWA easement and Espola Road

SCOPED TASKS

1. PROJECT MANAGEMENT AND MEETINGS

1.1 Project Administration -Consultant shall provide project administration as described in the original scope of services. This task will also include efforts associated with booking this Amendment into the BV systems.

1.2 Design and Construction Schedules -Upon Notice to Proceed, Consultant shall prepare and submit an updated design schedule. Updates to the construction schedule will be submitted with 90% and 100% submittals.
~-BLACK & VEATCH
3 of 11
12 of 26
December 2, 2025, Item #5

1.3 Project Quality Assurance/Quality Control Program -Perform QA/QC on all remaining work identified under Task 2, 5.2 and 5.3.

1.4 Management Support and Presentations -This task has been removed from the scope of services.

1.5 CEQA Coordination -Consultant shall provide coordination and assistance with the City's CEQA consultant to address the Project scope revisions.

1.6 Progress Meetings and Reporting-It is assumed that the Consultant will participate in the following meetings:

1.6.2 Monthly Meetings - 8 remaining monthly status calls assumed.

1.6.3 Bi-Weekly Status Calls -This subtask have been removed.

1.6.4 Updated Supplemental PDR Meeting -It is assumed that a meeting will not be required to review the updated Supplemental PDR.

1.6.5 Updated 50% Design Meeting -This meeting was previously completed. No additional action.

1.6.6 90% Design Meeting -This meeting will be held to review the drawings and specifications at the 90% design completion stage. Meeting duration is four (4) hours.

1.6.7 100% Design Meeting -This meeting will be held to review the drawings and specifications at the 100% design completion stage. Meeting duration is four (4) hours.

Task 1 BV Assumptions:
• Remaining design schedule duration is 8 months.
• Bid phase services will be provided with duration of 4 months. • All permit fees will be paid for by the City (applies to all Tasks in this scope of services). • Preparation of meeting agendas and minutes is performed under each individual meeting task.

2. DATA COLLECTION, REVIEW OF BACKGROUND DOCUMENTS AND BASIS OF DESIGN REPORT

2.1 Review Existing Documentation -This task was previously completed. No additional action.

2.2. Updated Supplemental Basis of Design Report (Updated PDR) -The Consultant shall revise the April 2025 version of the Updated PDR to reflect the design revisions per this Amendment.

This Report will summarize the basis of design for the modified design components and facility areas, but it will not re-state design aspects that have not been changed. The Updated PDR will include findings from the updated hydraulic and surge analysis (see Task 2.3 below). An evaluation on pipeline material options (i.e. steel vs. PVC) will also be performed under this task, and a brief section, summarizing the recommended material selection will be included as part of the updated PDR.
~-BLACK & VEATCH
4 of 11
13 of 26
December 2, 2025, Item #5

2.3 Updated Hydraulic and Surge Analysis -Consultant shall update the hydraulic and surge analysis previously performed in March 2025 to reflect the revised Project scope.

In Section 5.1.5.1 (Scenario E/B) of the Hydraulic & Surge Analysis TM (March 2025 Hydraulic & Surge Analysis TM), future operation of the reverse flow scenario from the Poway Clearwells to the Ramona Tank, utilizing a 30-inch Pipeline on Espola Road, was assessed. At the time of the study, it was assumed that the gravity flow operation will be regulated by a control valve located near RAM-3, inside the Ramona Flow Control Valve Vault. Per the revised Project scope, this flow control valve vault is to be located within the PS 16 site (Poway Flow Control Vault).

In Section 5.3.2 of the March 2025 Hydraulic & Surge Analysis TM, transient simulations were also performed for operation of an 18-inch plug valve to mitigate surge conditions when sending flows from Poway to Ramona. Use of the existing 24-inch Poway Pipeline and 27-inch Ramona Pipeline (between RAM-2 and RAM-3) was assumed in the transient simulations.

Hydraulic and Surge Analysis -Consultant shall update the March 2025 Hydraulic & Surge Analysis to reflect the revised Project scope to utilize the 30-inch Pipeline on Espola and the Poway Flow Control Vault (for the flow scenario from the Poway Clearwell to the Ramona Tank) to be located at the PS16 site. Updated recommendations on valve type, size and the closing time will be provided in the updated PDR and will be incorporated into the updated 90% design.

It is assumed that:
• The transient model to be updated by the Consultant will be for the flow scenario from Poway to Ramona and not extend beyond the connection with POW-6. • It is assumed that SDCWA will perform the hydraulic and surge analysis for flow distribution from POW-6 to Poway and Ramona as part of their design of POW-6 and that information of the range of available HGL downstream of POW-6 will be provided to Poway (for incorporation into the hydraulic profile drawing). • It is assumed that the flows to be conveyed from POW-6 to PS16 range from 3 cfs to 24 cfs (previously assumed to be 6 cfs to 20 cfs).
• It is assumed that the flows to be conveyed from Poway to Ramona range from 6 cfs to

17.25 cfs (no change from the previous assumptions.
• Vacuum valves are included in this effort. If a mechanical surge system (i.e. tank) is required upstream of the Poway Forebay, design of that type of system would be done as an additional service upon approval by the City.

Task 2 Deliverables:
• Updated PDR reflective of the revised Project scope per this Amendment. A draft and final Updated PDR are assumed. Findings from the Updated Hydraulic & Surge Analysis will be included in the Updated PDR (no separate updated TMs will be prepared).

3. FIELD INVESTIGATIONS
All tasks under Task 3 have been previously completed. No additional action. ~ BLACK & VEATCH
5 of 11
14 of 26
December 2, 2025, Item #5

4. PERMITTING AND REGULATORY COMPLIANCE

4.1 Permitting Coordination -The Consultant will continue assisting with City in obtaining the necessary permits per the original scope of services and provide additional support as needed in modifying the applications or coordination documents to accommodate the currently proposed design revisions. The remaining permitting assistance work may include support associated with the following permits:

4.1.1 City of Poway -Conditional Use Permit

4.1.2 City of Poway -Grading Permit

4.1.3 City of Poway -Building Permit

4.1.4 City of Poway -Right of Way Permit -to be specified as Contractor requirement, Covered under Task 5.

4.1.5 City of Poway -Haul Route Permit (plans and specifications to be prepared for the Contractor to obtain the permit)-to be specified as Contractor requirement, Covered under Task 5.

4.1.6 State Water Resources Control Board / City of Poway -Storm Water Quality Management Plan (SWQMP)

4.1.7 State Water Resources Control Board -Stormwater and Groundwater Dewatering Discharge Permit (plans and specifications to be prepared for the Contractor to obtain the permit) -to be specified as Contractor requirement, Covered under Task 5.

4.1.8 San Diego County Water Authority -Encroachment Permit -The encroachment permit application will be revised for the 30" Pipeline and re-submitted per the revised Project scope.

4.1.9. Ramona Municipal Water District -Encroachment Permit

5. DESIGN (Updated 90%, 100% and Bid Set)

5.2 90%, 5.3 100% and 5.3.1 Bid Set-The Consultant shall prepare engineering plans and project specifications suitable for construction of the Treated Water Facilities. The plans shall be prepared in accordance with City standards. Submittals to the City are required at the following points during the design process: Updated 90%, 100% and Bid Set. The updated 90% submittal will incorporate changes to the Project scope per this Amendment, and all other facilities that were not impacted by the design change. Following the 90% Submittal, the 100% Submittal will follow, as originally scoped. In addition a new Bid Set will be developed to address minor comments or clarifications to the 100% submittal. Should significant design changes be required at the 100% submittal, a future amendment would be required.

The Consultant shall coordinate with the City for the City to provide review comments for the design plans in PDF (in Bluebeam or Adobe). At the 90% Submittal, updated draft plans and specifications shall be submitted to the City for review and input. The Consultant shall incorporate the City's comments into the subsequent submittal or provide a written explanation ~. BLACK & VEATCH
6 of 11
15 of 26
December 2, 2025, Item #5
of why the comments cannot be incorporated. This task will culminate in bid-ready contract documents for the Treated Water Facilities Project.

The plans shall show all the existing property lines, public rights-of-way, easements, utilities, construction access, construction work areas and construction staging areas. It will be the Consultant's responsibility to contact all public utilities to determine and verify the location of their utilities within the project area. The site plan and pipeline plan/profile sheets shall be drawn at an appropriate scale on D size mylar sheets (24" x 36").

The Consultant shall provide a complete set of contract documents using the City's standard forms for the Notice Inviting Bids, General Provisions, Bidding Requirements and Contract Forms and using the CSI format for Supplemental Contract Conditions, Supplemental Division 1 General Requirements, and Division 2 through 17: Technical Specifications. The Consultant will be required to modify the Contract Forms and the Supplemental Contract Conditions and General Requirements to comply with all City requirements.

Single Bid Package -As described in Page 2 of this Amendment, it is assumed that a single competitive bid package will be prepared to include all Project scope.

General -General drawings including site map, vicinity map, general notes, legend, abbreviations, and equipment/piping/valve schedules reflective of the revised Project scope.

Civil/Site/Demolition Planning -Civil site plans showing demolition, grading and paving, horizontal control, drainage, yard piping, suction and discharge piping plans and profiles, and all detailing required for a complete civil site design reflective of the revised Project scope.

Pipeline Material -It is assumed that the pipeline material for the new 30-iernch (and other major water pipelines, except for chemical feed, plumbing, and other small piping) will be steel.

If the outcome of the alternative pipe material evaluation (under Task 2.2) results in use of alternative pipe material (e.g. PVC), additional design services will be required (beyond this Amendment).

Task 5.2 and 5.3 General/Civil/Site/Demolition Assumptions:

In addition to the unchanged remaining work from the original Project scope and previous amendments, the following work will be incorporated into the final design documents:
• Updated front-end documents to reflect the revised Project scope. • Modifications to the existing 27-inch Ramona Pipeline downstream of RAM-3 for connection with new 30-inch Pipeline and future connection with POW-6. • Removal of Ramona Flow Control Vault (previously designed) and associated piping from the civil plan for the RAM-3 area.
• Addition of a new valve vault downstream of POW-6 for electrically actuated isolation valves.
• Pipeline plan and profiles for the new 30-inch Pipeline. • Updated site plan with the Poway Flow Control Vault at PS16. • Civil details associated with the modifications above. • Updates to the equipment, pipe and valve schedules.
• Pipeline connection details.
~ BLACK&VEATCH
7 of 11
16 of 26
December 2, 2025, Item #5
• City's existing portable engine-generator to be converted for permanent outdoor installation (upon capacity confirmation).

Structural/Architectural -The structural design shall include all necessary plans, elevations and detailing required to construct a new pump station building, tank, generator pad, pre-cast flow meter vault and other applicable project items. The consultant will submit structural calculations.

Task 5.2, and 5.3 Structural/Architectural Assumptions:

In addition to the remaining work from the unchanged original Project scope and previous amendments, the following work will be incorporated into the final design documents:
• Remove vault design previously developed for Ramona Flow Control Vault. • Addition of a new valve vault downstream of POW-6.

Mechanical -Piping design shall comply with Hydraulic Institute Standards and Water Agencies' Standards (www.sdwas.com). The revised drawings shall update the mechanical plans and sections, detailing, and required schedules (e.g., piping and valve schedule).

Task 5.2 and 5.3 Mechanical Assumptions:

In addition to the unchanged remaining work from the original Project scope and previous amendments, the following work will be incorporated into the final design documents:
• Removal of design elements previously developed for mechanical piping improvements for RAM-2, Ramona Flow Control Vault, and pipeline connections within Lake Poway Road and the SDCWA right-of-way that are no longer needed per this Amendment. • Modifications to the existing 27" Ramona Pipeline downstream of RAM-3 for connection with new 30-inch Pipeline and future connection with POW-6. • Removal of Ramona Flow Control Vault (previously designed) and associated piping from the civil plan for the RAM-3 area.
• Addition of a new valve vault downstream of POW-6 for electrically actuated isolation valves.
• Finalize mechanical design based on the outcome of the updated Hydraulic & Surge Analysis TM, including design of the Poway Flow Control Vault at PS16.

Electrical and Instrumentation -The electrical feed shall be coordinated with San Diego Gas & Electric {SDG&E) requirements. Electrical plan revisions shall include updates to, but not limited to: single line diagram, equipment elevations, and electrical details to support the civil and mechanical design revisions as described above. The electrical design will be based on the final pump motor size of the booster pumps per the updated process mechanical design (may need to be revised back to 125 hp each).

Instrumentation design shall be based on the requirement to operate pump station locally or remotely through the City's SCADA system. Instrumentation drawings shall be updated as required including the process control and instrumentation diagram (P&ID), instrument list and Ill BLACK&VEATCH
8 of 11
17 of 26
December 2, 2025, Item #5
details. The City shall furnish consultant with standardized control schematics (i.e. ladder diagrams) for pump control and motor protection logic.

Task 5.2, 5.3 Electrical and Instrumentation Assumptions:

In addition to the remaining work from the unchanged original Project scope and previous amendments, the following work will be incorporated into the final design documents:
• Remove design elements previously developed for Ramona Flow Control Vault. • Addition of a new valve vault downstream of POW-6 for electrically actuated isolation valves.

SDG&E coordination to apply for a new service (to be owned by Poway) to supply power to the new valve vault.
• Finalize design based on the final booster pump motor size. • Revise design to provide a reduced voltage soft starter (RVSS) for each of the four pumps.

Space will be reserved, and conduits will be provided for potential future installation of up to two (2) VFD's.
• Short Circuit Coordination and Arc Flash studies will be the responsibility of the contractor during construction and requirements will be noted in the specifications. • Radio telemetry, based on the recently performed radio path study, will be provided for communication between POW-6 and Pump Station 16.
• Electrical and l&C design associated with the Poway Flow Control Vault (located at PS16).

Traffic Control -Traffic control plans will be updated for construction impacts to the piping modifications in the RAM-3/POW-6 area, Espola Road and Lake Poway Road, including intersections. Plans shall be designed in accordance with all applicable standards including City of Poway and the Work Area Traffic Control Handbook. Plans shall be submitted for approval by the City as noted under Task 4.1.1.

Task 5.2 and 5.3 Deliverables -At the Updated 90% design and 100% design submittals, deliver to the City one set searchable PDF (single file containing all sections) for review for each of the design package.

As part of the Bid Set Submittal, the Consultant shall provide the following:
• Original plans and specifications (i.e. Bid set) to the City ready for City signatures. In addition, provide one PDF copy of the plans and specifications. The finished set of construction documents shall become the property of the City.
• Provide one PDF copy and one hard-copy set of all calculations, correspondence, and reports for the City files.
• Provide CAD-based system drawing files in native file format.

The Bid Set Submittal is the final submittal.

5.4 Construction Cost Estimate -The Consultant shall provide a detailed estimate for the cost of construction including an estimated or recommended time for construction for the 90% and 100% design submittal. The Consultant shall prepare a detailed construction implementation ~-BLACK&VEATCH
9 of 11
18 of 26
December 2, 2025, Item #5
schedule, identifying construction tasks and duration. The Consultant shall recommend any required phasing of construction, if required for the completion of this project.

BV Task 5.4 Assumptions:
• Two total cost estimate deliverables (90% and 100%).
• Cost estimate will be submitted within two (2) weeks of the design submittal date to allow for final determination of the construction cost matching the project elements contained in the submittal.
• All opinions of probable construction costs developed will follow the recommendations of the Association for the Advancement of Cost Engineering (AACE) International Recommended Practice No. 18R with regard to methodology and accuracy. Since Consultant has no control over the cost of labor, material, or equipment furnished by others not under contract to Consultant, Consultant's opinion of probable cost for construction of the work will be made on the basis of experience and qualifications as an Engineer. Engineer does not guarantee or warranty that proposals, bids, or actual project costs will not vary from Consultant's opinions of probable cost. • The cost opinion level of accuracy presented by Consultant will be in accordance with accepted industry guidelines and as defined by AACE. The cost opinion will be of Class 4, for the Updated PDR and Class 2 for the 90% and 100% OPCC, respectively. • A single OPCC will be prepared for each design stage (Updated PDR, 90%, and 100%).

5.5 Surge Analysis (Downstream of PS16) -Task previously completed. No action.

5.6 System Integrator Coordination -The Consultant will be required to coordinate the design of the instrumentation and controls for the project with the City's authorized Instrumentation System Integrator:

South Coast Automation Systems, Inc.
22765 Savi Ranch Parkway, Suite D Yorba Linda, CA 92887 Attn: Mike Schmidt, (714) 874-4728
[email protected]
BV Task 5.6 Assumptions:
• The City of Poway will have a separate contract with South Coast Automation Systems for programming and other modifications to the City's SCADA system.

5.7 Coordination with SDCWA POW-6 FCF -The Consultant will be required to coordinate the design of the Treated Water Facilities Project with SDCWA POW-6 FCF project.

6. ENGINEERING SUPPORT DURING BID PHASE
The City indicated that the Project will likely be advertised in two separate bid packages. The scope for Task 6 will remain as is, per the original agreement, as described below. ~ BLACK&VEATCH
10 of 11
19 of26
December 2, 2025, Item #5

6.1 Bid Phase Services

6.1.1 Pre-Bid Meeting -Assist City staff in conducting a pre-bid meeting and tour of the project site. For budgeting purposes this effort is assumed to last two (2) hours and shall be attend by the Consultant's Project Manager and Engineering Manager.

6.1.2 Response to Questions -Assist the City with responses to technical questions about the contract requirements from prospective bidders, subcontractors, and suppliers during the advertisement period

6.1.3 Addenda Preparation -Assist the City in preparing written responses to requests for information or clarification, addenda to the contract documents during the advertisement period to clarify and revise project requirements. For budgeting purposes two {2) addendum are assumed.

6.1.4 Bid Review and Evaluation -Assist the City in bid review and evaluation. Consultants review/evaluation shall be provided in a brief summary letter.

6.1.5 Prepare Conformed Specifications and Drawings -Consultant shall prepare conformed specifications and drawings based on addenda issued.

BV Task 6 Assumptions:
• Engineering Support During Bid Phase duration is four (4) months. ~-BLACK & VEATCH
11 of 11
20 of26
December 2, 2025, Item #5
dl. ff
~
'I .. ~
•j
~-jjj
H
21 of 26
"""
H
~
~·~····-a· ...
~
lri
ul
= = ....

I
~!---
I I
I I . "
T
I ..

I
11 i:~•-·1 ••1 no
I
..... --=
. .. ~ ,...,. r.

December 2, 2025, Item #5
December 2, 2025, Item #5
Senior Project Director
Senior Project Manager
Civil QC
HC Civil Sr Engineer
Geotech Sr Engineer
Structural Sr Engineer
Senior Estimator
Civil Sr Engineering Manager
Structural QC
Chem Feed QC
Building Mech Director/QC
Chem Feed Sr Engineer
l&CQC
Process Mechanical QC
Process Mechanical Engineer 6
Electrical QC
Electrical Sr Engineer
Building Mechanical Engineer
Architect QC
Senior Architect
BIM Sr. Technician
Civil Sr Engineer
l&C Sr Engineer
Condition Assessment
Architect
BIM Coordinator
Electrical Engineer
Civil Engineer
Process Mechanical Engineer 2
Chem Feed Engineer
l&C Engineer
Project Controls
Structural Engineer
BIM Technician
Electrical Sr Technician
Finance
l&C Technician
Project Biller
Admin
CONFIDENTIAL Note z
Black & Veatch
Billing Rates and Expense Schedule
for
Poway, City of
Calendar Year 2025
HOURLY BILLING RATES (see Client Billings and Notes)
Title/Description/Hourly Billing Rate ($USO)
$375.00
$350.00
$300.00
$300.00
$300.00
$290.00
$290.00
$280.00
$280.00
$280.00
$275.00
$275.00
$275.00
$265.00
$265.00
$265.00
$250.00
$245.00
$230.00
$230.00
$230.00
$225.00
$220.00
$210.00
$180.00
$180.00
$175,00
$170.00
$170.00
$170.00
$170.00
$170.00
$165.00
$150.00
$145.00
$145.00
$140.00
$120,00
$110.00
Client Billings: Client shall pay to Engineer for the performance of the Services the sum of the following amounts unless the compensation is otherwise stated in the specific task assignment.

1. Labor will be billed as actual hours charged to this project by Black & Veatch personnel and in accordance with the rates above.

2. Expenses for travel and lodging will be billed at actual cost. These expenses include cost such as air-fare, personal mileage, lodging, meals, motor vehicles rental, telephone, special rental equipment, etc.

3. Overtime applies only to non-exempt personnel as defined by the US Federal Wage and Hour Law. Overtime will be billed as actual hours charged to this project by Black & Veatch personnel in accordance with the rate sheet plus 50%.

4. Any other professionals not specifically identified above will be placed in the most appropriate category above based on function and experience.

Notes:

1. Billing rates are subject to annual adjustment on each January 1.

2. This Rate Sheet contains information that may be privileged, confidential and exempt from disclosure under applicable law.

Any unauthorized disclosure, copying, or distribution of this document or any of its contents is prohibited. 23 of 26
December 2, 2025, Item #5
Existing
Clearwell
:'\
Temporary Pressure
Control Valves
LEGEND
- Existing Water Pipeline
- Existing Storm Drain
• ...... Proposed Buried Water Pipeline
- Proposed Above-Ground Water Pipeline
- Proposed Above-Ground overflow Pipeline
December 2, 2025, Item #5

4.0' MG
ID:~ 10' s;,;J : 1 s.s •
FFE1 849
~\
\ ~
~
i 4.i MG ,
ID\\210'
swp, : 1s.s·
FF ·: 849
\
December 2, 2025, Item #5
~ n :::c
s: m
z -t
C