REQUEST FOR PROPOSAL
FOR
ESA WATER RESILIENCY IMPROVEMENT PROGRAM
ALPINE WEST WATER IMPROVEMENT PROJECT
ALTERNATIVES ANALYSIS AND FEASIBILITY STUDY
(JN 225001)
PROPOSAL DUE
Date: February 24, 2026 Time: 3:00 PM
ELECTRONIC SUBMISSION ONLY
________________________________
Lewis Clapp, P.E.
Director of Engineering & Planning
Table of Contents
1 INTRODUCTION ......................................................................................... 2
2 DISTRICT DESCRIPTION............................................................................................................ 2
3 BACKGROUND ......................................................................................................................... 3
4 PROJECT DESCRIPTION ............................................................................................................ 4
5 MINIMUM REQUIREMENTS AND TASKS ................................................................................. 5
6 STANDARDS ............................................................................................................................. 9
7 PROPOSAL REQUIREMENTS .................................................................................................. 10
8 CONSULTANT SELECTION PROCESS....................................................................................... 13
9 SCHEDULE FOR SELECTION AND AWARD.............................................................................. 16
10 SPECIAL CONDITIONS ............................................................................................................ 17
ATTACHMENTS:
Attachment 1 - GIS Figures of Project Sites
Attachment 2 - Galloway Valley Reservoir Record Drawings
Attachment 3 - Professional Engineering Services Agreement
AVAILABLE AS DOWNLOADS FROM PADRE DAM’S WEBSITE:
• 2022 Master Plan Update and Technical Appendices
Request for Proposal
January 9, 2026
Alpine West Water Improvement Project
Alternatives Analysis and Feasibility Study (JN 225001)
1
1 INTRODUCTION
Padre Dam Municipal Water District (Padre Dam or District) is requesting proposals from qualified
engineering firms to evaluate the feasibility of various site options for the Alpine West Water
Improvement Project. The purpose of evaluating the Galloway Pump Station (Project RPS-2) and
associated pipeline (Projects R-2A, R-2B, and R-2C) and the Alpine West Pump Station (Project
RPS-3) and associated pipeline (Project R-3) identified in the District’s 2022 Master Plan Update,
is to ascertain the scope of work required for the final design and construction, including but not
limited to the following disciplines: environmental, civil, mechanical, structural, electrical, right-
of-way, and construction costs. In addition, the work described in this Request for Proposal (RFP)
will determine if additional pipeline work, beyond what is directly associated with the facilities,
will be required to meet the demands of the proposed pump stations and if the locations identified
in the 2022 Master Plan Update provide the greatest value options. With this in mind, proposers
are also encouraged to identify viable alternatives, including alternative sites and other possible
solutions. The goals of these projects include: providing resiliency in the Eastern Service Area
(ESA) through redundant ways of conveying water from the Chocolate Summit Zone to the Alpine
West Pressure Zone and then into the West Victoria Pressure Zone, operational flexibility and
efficiency, and improved water quality.
The selected firm will provide professional engineering services to develop and submit an
alternatives analysis of potential sites for the projects and a feasibility study of the highest-ranking
sites to determine which alternative is technically, financially, and operationally viable. The
selected firm or team must have experience in providing all the required engineering services
including, but not limited to, project administration, hydraulic modeling and analysis utilizing
Innovyze InfoWater software, and water system design including various potable water storage
tank types and configurations, pump station design, and environmental engineering services. Due
to the priority of these projects, the selected firm should be prepared to begin work immediately
upon award of contract. There will be a non-mandatory pre-proposal meeting at 9:00 AM on
January 21, 2026. The meeting will start at the District’s office located at 9300 Fanita Parkway,
Santee, CA 92071 and then attendees will have the opportunity to visit each site with District
personnel. Attendees should allow for between 2 and 3 hours for the meeting given the location
of each site relative to Padre Dam’s office. Questions shall be directed in writing to: Tom Bloomer,
P.E. at tbloomer@padre.org. All inquiries shall be received by 5 p.m. on February 9, 2026.
Questions and responses will be posted to Padre Dam’s website.
2 DISTRICT DESCRIPTION
Padre Dam is a public agency, a Special District of the State of California that provides water,
wastewater, recycled water and recreation services to residents in East San Diego County
including Santee, El Cajon, Lakeside, Flinn Springs, Harbison Canyon, Blossom Valley, Alpine,
Dehesa, and Crest. Padre Dam serves 100,000 residents with over 24,000 active service
connections, manages over $700 million in infrastructure assets.
Request for Proposal
January 9, 2026
Alpine West Water Improvement Project
Alternatives Analysis and Feasibility Study (JN 225001)
2
Currently, the potable water system includes 3 imported water connections, 28 water storage
reservoirs, 16 booster pumping stations, 19 pressure-regulating stations, and approximately 390
miles of pipeline up to 60-inches in diameter. Additional information regarding the water system is
available in the District’s 2022 Master Plan Update.
3 BACKGROUND
Padre Dam’s water service area is split into two geographic regions, the Western Service Area (WSA)
and Eastern Service Area (ESA). The ESA is predominantly served by a single water supply
connection with the ability to utilize a second connection if necessary. Water is conveyed from
west to east, in the ESA, through a series of pump stations and reservoirs via the District’s
“backbone” transmission main. Sixteen (16) of the District’s twenty-nine (29) water storage
reservoirs are located in the ESA. A majority of the 56 million gallons (MG) of effective storage
capacity provided by the 29 reservoirs (33 MG or 59 percent of total) is in the ESA. There are also
11 pump stations and 18 pressure reducing stations in the ESA.
The community of Alpine receives water from the Arnold Way Pump Station No. 4 which is fed by
the Chocolate Summit Reservoir. Water is delivered to the Chocolate Summit Reservoir by the Flinn
Springs Pump Station No. 3 which uses the Blossom Valley Reservoir as a forebay. Redundancy was
added to the ESA system when the ESA Secondary Connection Pump Station and Forebay project
was completed in 2019. The addition of the Secondary Connection Pump Station provided Padre
Dam with a new connection to the San Diego County Water Authority’s system, County Water
Authority (CWA) No. 7, and provided redundancy to the El Capitan Pump Station No. 1 which gets
water from the Wholesale Reservoirs (Price, Lakeview, and Los Coches) that receive water from
CWA No. 4 and CWA No. 6. The ESA Secondary Connection project is considered phase 1 of the
larger goal to improve water resiliency in the ESA and Alpine.
Following the completion of the ESA Secondary Connection Project, in 2020 Padre Dam invested in
a new pipeline from Mountain Top Reservoir and Pump Station No. 7 site called the Mountain View
Connector Pipeline. This pipeline travels along Mountain View Rd from the Mountain Top Reservoir
site, through the Almyra Pressure Reducing Station, and northbound on Harbison Canyon Rd to the
Harbison Canyon Pressure Reducing Station. The 16” ductile iron Mountain View Connector Pipeline
is parallel to an existing 10” AC pipe in Harbison Canyon Rd up to the Harbison Canyon pressure
reducing station at which point only the 10” AC pipe continues up to Arnold Way. The 10” AC pipe
in Harbison Canyon Road was installed in 1962. The Mountain View Connector Pipeline provides
operational benefits including a secondary way to move water into Alpine as well as meeting
identified storage deficiencies in the Chocolate Summit, Harbison Canyon, and Dehesa Valley
Pressure Zones (PZ). The hydraulic profile found in the 2022 Master Plan Update, Figure 7.5, shows
that the Mountain Top, Chocolate Summit and Galloway Valley Reservoirs operate at the same HGL.
Request for Proposal
January 9, 2026
Alpine West Water Improvement Project
Alternatives Analysis and Feasibility Study (JN 225001)
3
As identified in the 2022 Master Plan Update, next steps to build resiliency in the ESA include the
addition of the Galloway Pump Station (Galloway PS, Projects RPS-2 and R-2A, R-2B, and R-2C) at
the Galloway Valley Reservoir site and the Alpine West Pump Station (Alpine West PS, Projects RPS-
3 and R-3) at the Alpine Trail Pressure Reducing Station site, which are the focus of this RFP. The
objective of the Galloway Pump Station is to provide an alternative way to move water from the
Chocolate Summit PZ to the Alpine West/Alpine Trail PZ. The Alpine West Pump Station will move
water from the Alpine West/Alpine Trail PZ to the West Victoria PZ. This offers day-to-day
operational flexibility, anticipated improvements to water quality, and redundancy to filling the
Alpine Heights and West Victoria Reservoirs if something happens to the Arnold Pump Station, the
Arnold Way Pump Station needs to be taken offline for maintenance, or there is a break in pipeline
to or from Arnold Way PS.
The Galloway PS and Alpine West PS projects, as presented in the 2022 Master Plan Update, are
anticipated to require pipelines (Projects R-2A, R-2B, R-2C, and R-3) that will traverse challenging
cross-county terrain that will require consideration of environmental constraints,
property/easement acquisition, and cost to guide the selection of the optimal alignment and facility
site(s). The program EIR that was developed for the Master Plan is available on Padre Dam’s website
and contains additional information about each site. The natural terrain surrounding the Galloway
PS site includes dense vegetation, natural water ways, potential habitat for sensitive species, and
undulating surfaces. The site for the proposed Galloway PS, identified in the 2022 Master Plan
Update, is preliminarily shown at the District’s Galloway Valley Reservoir site. The Galloway Valley
Reservoir has a capacity of 3.5 Million Gallons, was constructed in 1993, and was part of a 2020
Reservoir Condition Assessment study which found the reservoir to be in good condition. The
reservoir has been out of service for more than 12-years due to decreasing water demands and
water quality in the pressure zone. The Alpine Trail PRS was constructed in 2014. Both sites are
owned by Padre Dam.
The 2022 Master Plan Update identified the preliminary requirements for the Galloway and Alpine
West Pump Stations as both having three pumps, each with 1,450 gpm and 1,400 gpm, respectively.
4 PROJECT DESCRIPTION
The Eastern Service Area consists of rural residential properties surrounded by natural open space
much of which is considered both sensitive habitat and is in the wildland urban interface. The
primary objective for the Project is to design a new connection between neighboring pressure zones.
The proposed pump stations and their associated pipelines will move water between the two
pressure zones providing some level of redundancy, resiliency, and the ability to more efficiently
and effectively supply water to areas during an emergency such as a wildfire event and earthquake.
Conveying water into the western portion of Alpine, along the border of the Chocolate Summit PZ
and Alpine West PZ is limited to water that the Arnold Way PS delivers to the West Victoria and
Alpine Heights Reservoirs which are northeast and southeast of the Alpine West PZ, respectively.
Most of the existing distribution system throughout Alpine consists of AC pipes, installed in the
early 1960s, that are 10-inch and 8-inch diameter, which also contributes to the challenge of
Request for Proposal
January 9, 2026
Alpine West Water Improvement Project
Alternatives Analysis and Feasibility Study (JN 225001)
4
This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.
